CN112055440B - Light-emitting diode lamp string system with sequencing function and sequencing method - Google Patents
Light-emitting diode lamp string system with sequencing function and sequencing method Download PDFInfo
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- CN112055440B CN112055440B CN201910418958.5A CN201910418958A CN112055440B CN 112055440 B CN112055440 B CN 112055440B CN 201910418958 A CN201910418958 A CN 201910418958A CN 112055440 B CN112055440 B CN 112055440B
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Abstract
The invention discloses a light-emitting diode lamp string system with a sequencing function and a sequencing method, wherein the light-emitting diode lamp string system with the sequencing function comprises a light-emitting diode driving device and a light-emitting diode lamp string; in a preset sequence test mode, the light-emitting diode driving device sequentially transmits a plurality of preset sequence test signals to the light-emitting diode lamp string to find out the damaged light-emitting diode lamp; in an extended sequence test mode, the LED driving device respectively transmits a plurality of extended sequence test signals to the LED lamp string to find out a new LED lamp. A sequencing method executes a preset sequence test mode to detect a failure address code, executes an extended sequence test mode to detect a substitute address code, and replaces the failure address code with the substitute address code in a test sequence.
Description
Technical Field
The present invention relates to led light string systems and methods, and more particularly, to led light string systems with sequencing function and methods for sequencing led light string systems.
Background
Nowadays, the led light string system of the related art includes a led driving apparatus of the related art and a led light string of the related art; the related art led light string includes a plurality of related art led lamps electrically connected to each other. After the related art led light string is manufactured, each related art led lamp has a local address code, the local address codes of the related art led lamps are different, and the related art led lamps are sequentially arranged according to the local address codes; for example, it is assumed that the related art led string includes 25 led lamps of the related art, the 25 led lamps of the related art have the local address codes 01 and 02 … 25, respectively, and the 25 led lamps of the related art are sequentially arranged according to the local address codes 01 and 02 … 25.
The related art led driving apparatus is used to drive the related art led string to emit light in a diversified manner, and the method includes:
firstly, the related art light emitting diode driving device generates a related art driving light emitting signal, wherein the related art driving light emitting signal comprises a preset address code and a light emitting code; then, the related art led driving apparatus transmits the related art driving light signal to the plurality of related art led lamps, and all of the plurality of related art led lamps receive the related art driving light signal. If the local address code of the related art led lamp is the same as the preset address code of the related art driving light-emitting signal, the related art led lamp emits light according to the light-emitting code of the related art driving light-emitting signal; if the local address code of the related art light emitting diode lamp is not identical to the preset address code of the related art driving light emitting signal, the related art light emitting diode lamp ignores the light emitting code of the related art driving light emitting signal.
For example, if the predetermined address code of the related art driving light signal is 05, the related art led lamp having the local address code of 05 emits light according to the light emitting code of the related art driving light signal, and the rest of the related art led lamps ignore the light emitting code of the related art driving light signal. Therefore, the related art led driving apparatus can drive the related art led string to emit light in a variety of ways.
When a related art led lamp is damaged, the related art led lamp does not emit light, and a user purchases a new related art led lamp and replaces the damaged related art led lamp with the new related art led lamp. For example, when the led lamp of the related art with the local address code of 05 is damaged, the user purchases a new led lamp of the related art (for example, the local address code of 30) and replaces the damaged led lamp of the related art (the local address code of 05) with the new led lamp of the related art (the local address code of 30).
However, the related art led driving apparatus is unaware that the new related art led lamp (the local address code is 30) has replaced the damaged related art led lamp (the local address code is 05), so that when the related art led driving apparatus transmits the related art driving light signal having the preset address code of 05 to the plurality of related art led lamps, none of the related art led lamps emits light according to the light code.
Thus, when the led lamp of the related art having the local address code of 05 is damaged, the user can only purchase a new led lamp of the related art having the local address code of 05 and replace the damaged led lamp of the related art having the local address code of 05 with the new led lamp of the related art having the local address code of 05; alternatively, the user can only purchase a new led string to replace the original led string, wherein the led string having the local address code of 05 in the original led string is damaged. The user cannot freely purchase the related art led lamp having the unknown local address code (or not 05) instead of the damaged related art led lamp having the local address code of 05.
Disclosure of Invention
In order to solve the above problems, the present invention provides a led light string system with a sequencing function and a sequencing method.
To achieve the above objects, the led light string system with sequencing function of the present invention comprises: a light emitting diode driving device; and the at least one light-emitting diode lamp string is electrically connected to the light-emitting diode driving device. Wherein the at least one LED light string comprises: the LED driving device comprises a plurality of LED lamps, wherein the LED lamps are electrically connected to the LED driving device and are electrically connected with each other. When the LED driving device is in a preset sequence test mode: the light emitting diode driving device is used for generating a plurality of preset sequence test signals; each preset sequence test signal is provided with a preset address code; the preset address codes are different; according to a test sequence of the preset address codes, the light-emitting diode driving device sequentially transmits the preset sequence test signals to the at least one light-emitting diode lamp string and correspondingly and sequentially detects a consumption current of the at least one light-emitting diode lamp string; when the consumed current is less than or equal to a first current, the light-emitting diode driving device stores and defines the preset address code of the preset sequence test signal corresponding to the consumed current less than or equal to the first current as a failure address code. Wherein when the LED driving device is in an extended sequential test mode: the light emitting diode driving device is used for generating a plurality of extension sequence test signals; each extended sequential test signal has an extended address code; the plurality of extended address codes are different; the plurality of extended address codes are different from the plurality of preset address codes; the LED driving device respectively transmits each extension sequence test signal to the at least one LED lamp string and correspondingly detects the consumption current of the at least one LED lamp string; when the current consumption is larger than or equal to a second current, the light-emitting diode driving device stores and defines the extended address code of the extended sequence test signal corresponding to the current consumption larger than or equal to the second current as a substitute address code. The LED driving device replaces the failure address code with the substitute address code in the test sequence.
Optionally, in an embodiment of the present invention, the led light string system with sequencing function as described above, wherein each led light has a local address code; the plurality of local address codes are different; each preset sequence test signal further has a test light-emitting signal; each of the extended sequence test signals further has the test emission signal; when the led driving apparatus sequentially transmits the plurality of predetermined sequential test signals to the plurality of led lamps of the at least one led string, if the predetermined address code of the predetermined sequential test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light signal of the predetermined sequential test signal received by the led lamp to generate the consumed current; when the led driving apparatus transmits each of the extended sequence test signals to the plurality of led lamps of the at least one led string, if the extended address code of the extended sequence test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light-emitting signal of the extended sequence test signal received by the led lamp to generate the consumption current.
Optionally, in an embodiment of the invention, the led string system with sequencing function as described above, wherein the led driving apparatus includes: a transmitting end controller; and the transmitting end switch is electrically connected to the transmitting end controller and the at least one LED lamp string. The transmitter controller is configured to control the transmitter switch to generate the plurality of predetermined sequential test signals and the plurality of extended sequential test signals.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein the led driving apparatus further includes: a transmitting end memory electrically connected to the transmitting end controller; and the test button is electrically connected to the sending terminal controller. The sending end memory is used for storing the test sequence, the failure address code and the substitute address code; when the test button is pressed, the light emitting diode driving device enters the preset sequence test mode; after the light emitting diode driving device completes the preset sequential test mode to leave the preset sequential test mode, the light emitting diode driving device enters the extended sequential test mode; after the led driving apparatus completes the extended sequential test mode to leave the extended sequential test mode, the led driving apparatus replaces the failing address code with the substitute address code in the test sequence. The sending end memory and the sending end controller can also be integrated into a controller with a memory.
Optionally, in an embodiment of the invention, the led light string system with a sequencing function as described above, wherein the led driving apparatus further includes: a current detector electrically connected to the transmitting terminal controller and the transmitting terminal switch; and the radio frequency receiver is electrically connected to the transmitting end controller and the current detector. Wherein the current detector is used for detecting the consumption current of the at least one LED light string to inform the sending-end controller of the consumption current of the at least one LED light string; the radio frequency receiver is used for receiving a wireless remote control signal to control the sending end controller.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein each led light includes: a voltage dividing circuit electrically connected to the LED driving device; and a receiving end driver, the receiving end driver is electrically connected to the voltage division circuit. The voltage division circuit is used for reducing the power supply provided by the light-emitting diode driving device so as to supply power to the receiving end driver; the receiving end driver is used for judging whether the preset address code of the preset sequential test signal received by the light-emitting diode lamp is the same as the local address code of the light-emitting diode lamp or not and judging whether the extended address code of the extended sequential test signal received by the light-emitting diode lamp is the same as the local address code of the light-emitting diode lamp or not; the receiving end driver is used for storing the local address code.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein the voltage divider circuit includes: the first resistor is electrically connected to the light-emitting diode driving device and the receiving end driver; the second resistor is electrically connected to the receiving end driver and the first resistor; a first zener diode electrically connected to the receiver driver, the first resistor and the second resistor; a second zener diode electrically connected to the second resistor; a diode electrically connected to the receiving end driver, the first resistor, the second resistor, the first zener diode and the second zener diode; and the capacitor is electrically connected to the second resistor, the second Zener diode and the diode.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein each led light further includes: the third resistor is electrically connected to the receiving end driver; the fourth resistor is electrically connected to the receiving end driver; a fifth resistor electrically connected to the receiver driver; a first transistor switch electrically connected to the third resistor; a second transistor switch electrically connected to the fourth resistor; a third transistor switch electrically connected to the fifth resistor; a first light emitting diode electrically connected to the first transistor switch; a second light emitting diode electrically connected to the second transistor switch; a third light emitting diode electrically connected to the third transistor switch; the sixth resistor is electrically connected to the first light-emitting diode, the first resistor and the light-emitting diode driving device; the seventh resistor is electrically connected to the second light-emitting diode, the first resistor and the light-emitting diode driving device; and the eighth resistor is electrically connected to the third light-emitting diode, the first resistor and the light-emitting diode driving device.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein each led light includes: a voltage stabilizer electrically connected to the LED driving device; and a logic controller electrically connected to the voltage regulator. Before the preset sequential test mode and the extended sequential test mode are carried out, a driving voltage of the voltage stabilizer is reduced, and each light-emitting diode lamp works at the voltage which is not conducted by the voltage stabilizer.
Optionally, in an embodiment of the invention, the led light string system with sequencing function as described above, wherein each led light includes: a voltage stabilizer electrically connected to the LED driving device; and a logic controller electrically connected to the voltage regulator. Before the preset sequential test mode and the extended sequential test mode are carried out, the light-emitting diode driving device transmits a command signal to the logic controller, so that the logic controller turns off the voltage stabilizer.
To achieve the above object, the present invention further provides a sequencing method, comprising: executing a predetermined sequential test pattern to detect a fail address code; executing an extended sequence test mode to detect a substitute address code; and replacing the failing address code with the substitute address code in a test sequence. Wherein executing the predetermined sequential test pattern comprises: generating a plurality of preset sequential test signals, wherein each preset sequential test signal has a preset address code, and the preset address codes are different; sequentially transmitting the preset sequence test signals to a light-emitting diode lamp string to detect a consumed current of the light-emitting diode lamp string according to the test sequence of the preset address codes, wherein the preset address codes are sequentially arranged according to the size in the test sequence, the light-emitting diode lamp string comprises a plurality of light-emitting diode lamps, and the light-emitting diode lamps are electrically connected with each other; and if the consumed current is less than or equal to a first current, recording the preset address code of the preset sequential test signal corresponding to the consumed current being less than or equal to the first current as the failure address code. Wherein executing the extended sequential test pattern comprises: generating a plurality of extended sequence test signals, wherein each extended sequence test signal has an extended address code, the extended address codes are different, and the extended address codes are different from the preset address codes; transmitting each extension sequence test signal to the LED light string to detect the consumption current of the LED light string; and if the consumed current is larger than or equal to a second current, recording the extended address code of the extended sequence test signal corresponding to the consumed current which is larger than or equal to the second current as the substitute address code.
Optionally, in an embodiment of the present invention, the sequencing method as described above, wherein each of the led lamps has a local address code; the plurality of local address codes are different; each preset sequence test signal further has a test light-emitting signal; each of the extended sequence test signals further has the test emission signal; when the preset sequence test signals are sequentially transmitted to the plurality of light emitting diode lamps of the light emitting diode lamp string, if the preset address code of the preset sequence test signal received by the light emitting diode lamp is the same as the local address code of the light emitting diode lamp, the light emitting diode lamp emits light according to the test light emitting signal of the preset sequence test signal received by the light emitting diode lamp to generate the consumption current; when each extended sequence test signal is transmitted to the plurality of light emitting diode lamps of the light emitting diode lamp string, if the extended address code of the extended sequence test signal received by the light emitting diode lamp is the same as the local address code of the light emitting diode lamp, the light emitting diode lamp emits light according to the test light emitting signal of the extended sequence test signal received by the light emitting diode lamp to generate the consumption current.
The invention has the effect that the new LED lamp can replace the damaged LED lamp to correctly emit light according to the content of the driving light-emitting signal.
For a further understanding of the technology, means, and efficacy of the invention to be achieved, reference should be made to the following detailed description of the invention and accompanying drawings which are believed to be in full and illustrative of the objects, features, and characteristics of the invention, and to the accompanying drawings which are provided for reference and illustration purposes only and are not intended to be limiting of the invention.
Drawings
FIG. 1 is a block diagram (parallel type) of an LED light string system with sequencing function according to an embodiment of the present invention.
Fig. 2 is a block diagram (parallel type) of the led lamp of the present invention.
Fig. 3 is an external view of the led lamp of the present invention.
FIG. 4 is a flow chart of the sequencing method of the present invention.
FIG. 5 is a block diagram (in series) of another embodiment of a LED light string system with sequencing function according to the present invention.
FIG. 6 is a block diagram of an LED lamp according to the present invention (in series).
FIG. 7 is a voltage-current diagram of the voltage regulator of the present invention.
FIG. 8 is a block diagram (in series) of another embodiment of a LED light string system with sequencing function according to the present invention.
In the figure:
an LED light string system 10 with sequencing functionality; an AC power supply device 20; a light emitting diode driving device 102; a light-emitting diode string 104; a light emitting diode lamp 106; a transmitting-end controller 108; a transmit side switch 110; a sender memory 112; a test button 114; a current detector 116; a radio frequency receiver 118; a DC-to-DC converter 120; an AC to DC converter 122; a voltage divider circuit 126; a receive side driver 128; a first resistor 132; a second resistor 134; a first zener diode 136; a second zener diode 138; a diode 140; a capacitor 142; a third resistor 144; a fourth resistor 146; a fifth resistor 148; a first transistor switch 150; a second transistor switch 152; a third transistor switch 154; a first light emitting diode 156; a second light emitting diode 158; a third light emitting diode 160; a sixth resistor 162; a seventh resistor 164; an eighth resistor 166; a first connector 168; a second connector 170; a third connector 172; a voltage regulator 174; an oscillator 176; a signal conversion unit 178; an address and data identifier 180; a logic controller 182; a shift register 184; an output register 186; a light emitting diode driving circuit 188; an address register 190; an address comparator 192; an address memory 194; a first current interval R1; a second current interval R2; step S02; step S04; step S06; a voltage VL; the voltage VN.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 1, a block diagram (parallel type) of an led string system with a sequencing function according to an embodiment of the invention is shown. An led light string system 10 with sequencing function is applied to an ac power supply device 20; the led light string system 10 with sequencing function comprises an led driving device 102 and at least one led light string 104; the led driving apparatus 102 comprises a transmitter controller 108, a transmitter switch 110, a transmitter memory 112, a test button 114, a current detector 116, an rf receiver 118, a dc-dc converter 120, an ac-dc converter 122 and a first connector 168; the at least one led string 104 comprises a plurality of led lights 106, a second connector 170, and a third connector 172; the plurality of components are electrically connected to each other, the plurality of led lamps 106 are electrically connected to each other (i.e., connected in parallel), and the second connector 170 is connected (e.g., plugged) to the first connector 168. The sender memory 112 may also be integrated with the sender controller 108 as a memory-containing controller.
After the at least one led string 104 is manufactured, each led lamp 106 has a local address code, the local address codes of the led lamps 106 are different, and the led lamps 106 are sequentially arranged according to the local address codes; for example, suppose the at least one led string 104 includes 25 led lamps 106, the 25 led lamps 106 have the local address codes 01 and 02 … 25 respectively, and the 25 led lamps 106 are sequentially arranged from left to right in fig. 1 according to the local address codes 01 and 02 … 25.
The at least one led string 104 is connected to the led driving device 102 through the first connector 168 and the second connector 170, and the led driving device 102 is configured to drive the at least one led string 104 to emit light in a diversified manner, as follows:
the transmitting end controller 108 controls the transmitting end switch 110 (conducting or non-conducting) to generate a driving light-emitting signal, wherein the driving light-emitting signal includes a preset address code and a light-emitting code; then, the led driving apparatus 102 transmits the driving light signal to the plurality of led lamps 106, and all of the plurality of led lamps 106 receive the driving light signal. If the local address code of the led lamp 106 is the same as the preset address code of the driving light-emitting signal, the led lamp 106 emits light according to the light-emitting code of the driving light-emitting signal; if the local address code of the led lamp 106 is different from the preset address code of the driving light-emitting signal, the led lamp 106 ignores the light-emitting code of the driving light-emitting signal; the above may be referred to as a point control technique.
For example, if the predetermined address code of the driving light-emitting signal is 05, the led lamp 106 with the local address code of 05 emits light according to the light-emitting code of the driving light-emitting signal, and the remaining led lamps 106 ignore the light-emitting code of the driving light-emitting signal. Therefore, the led driving device 102 can drive the at least one led string 104 to emit light in a variety of ways.
When a led lamp 106 is damaged, the damaged led lamp 106 does not emit light, and the user purchases a new led lamp 106 and replaces the damaged led lamp 106 with the new led lamp 106. For example, when the led lamp 106 with the local address code of 05 is damaged, the user purchases a new led lamp 106 (e.g., with the local address code of 30) and replaces the damaged led lamp 106 (with the local address code of 05) with the new led lamp 106 (with the local address code of 30).
Thus, two problems arise:
1. how the led driving apparatus 102 knows that the led lamp 106 having the local address code of 05 is damaged (removed);
2. how the led driving apparatus 102 knows that the local address code of the new led lamp 106 is 30;
if the led driving apparatus 102 knows that the led lamp 106 with the local address code of 05 is removed, and if the led driving apparatus 102 knows that the local address code of the new led lamp 106 is 30, the preset address code of the driving light signal will become 30 (instead of 05) when the led driving apparatus 102 intends to drive the led lamp 106 with the local address code of 05 to emit light next time.
In view of the first problem, the present invention provides a predetermined sequence test mode to help the led driving apparatus 102 search for the damaged (removed) led lamp 106. The contents are as follows:
first, the test button 114 is pressed, so that the led driving apparatus 102 enters the predetermined sequential test mode. When the led driving apparatus 102 is in the predetermined sequential test mode: the led driving apparatus 102 generates a plurality of predetermined sequential test signals, wherein each of the predetermined sequential test signals has the predetermined address code, and the predetermined address codes are different; according to a test sequence of the preset address codes, the led driving apparatus 102 sequentially transmits the preset sequence test signals to the led lamps 106 of the led string 104, and correspondingly and sequentially detects a current consumption of the led string 104; when the consumption current is less than or equal to a first current (e.g., 0mA or 0.001 mA), the led driving apparatus 102 stores and defines the predetermined address code of the predetermined sequential test signal corresponding to the consumption current less than or equal to the first current as a fail address code. Thus, the led driving apparatus 102 can know which led lamp 106 is damaged (removed).
For example, the predetermined sequential test signals respectively have the predetermined address codes of 01 and 02 … 25, and the test sequence is 01 and 02 … 25; first, the led driving apparatus 102 transmits the predetermined sequential test signal with the predetermined address code of 01 to the led lamps 106 of the led string 104; at this time, the led lamp 106 with the local address code of 01 will emit light to generate the consumption current (greater than the first current), so the led driving device 102 knows that the led lamp 106 with the local address code of 01 is normal.
Then, the led driving apparatus 102 transmits the predetermined sequential test signal with the predetermined address code of 02 to the led lamps 106 of the led string 104; at this time, the led lamp 106 with the local address code 02 is illuminated to generate the consumption current (greater than the first current), so the led driving device 102 knows that the led lamp 106 with the local address code 02 is normal.
And so on, until the led driving device 102 transmits the predetermined sequential test signal with the predetermined address code of 05 to the led lamps 106 of the at least one led string 104, since the led lamp 106 with the local address code of 05 has been replaced, no led lamp 106 will emit light, and the consumption current of the led string 104 will be less than or equal to the first current, so the led driving device 102 knows that the led lamp 106 with the local address code of 05 has been removed, and the led driving device 102 stores and defines (records) the predetermined address code 05 as the failure address code.
In an embodiment of the invention, even if the led driving apparatus 102 knows that the led lamp 106 with the local address code of 05 is removed, the led driving apparatus 102 still transmits the predetermined sequential test signals with the predetermined address codes of 06-25 to the led lamp 106 of the at least one led string 104 to leave the predetermined sequential test mode; however, the invention is not limited thereto, and the invention can also leave the predetermined sequential test mode (i.e. stop transmitting the predetermined sequential test signals) once the led driving apparatus 102 knows that the led lamp 106 with the local address code of 05 has been removed. However, the transmission of the remaining plurality of predetermined sequential test signals has an advantage: if another damaged (removed) LED lamp 106 is detected, the LED driver 102 can alert the user to remove only one damaged LED lamp 106 at a time; that is, when the number of the failing address codes is greater than or equal to 2, the led driving apparatus 102 sends an alarm signal.
In view of the second problem, the present invention provides an extended sequence test mode to help the led driving apparatus 102 search for a new led lamp 106. The contents are as follows:
after the led driving apparatus 102 completes the predetermined sequential test mode to leave the predetermined sequential test mode, the led driving apparatus 102 enters the extended sequential test mode. When the led driving apparatus 102 is in the extended sequential test mode: the led driving apparatus 102 is used for generating a plurality of extended sequence test signals; each extended sequential test signal has an extended address code; the plurality of extended address codes are different; the plurality of extended address codes are different from the plurality of preset address codes; the led driving apparatus 102 transmits each of the extended sequence test signals to the at least one led string 104, and correspondingly detects the current consumption of the at least one led string 104; when the consumption current is greater than or equal to a second current (e.g., 100mA or 200mA, which is greater than the first current), the led driving apparatus 102 stores and defines the extended address code of the extended sequential test signal corresponding to the consumption current being greater than or equal to the second current as a substitute address code. Thereby, the led driving apparatus 102 knows which led lamp 106 is new.
For example, the extended sequential test signals have the extended address codes of 26, 27 … 32; first, the led driving apparatus 102 transmits the extended sequence test signal with the extended address code of 26 to the led lamps 106 of the at least one led string 104; at this time, since there is no led lamp 106 with the local address code of 26, no led lamp 106 will emit light, and thus the consumption current of the at least one led string 104 is smaller than the second current, so that the led driving device 102 knows that there is no led lamp 106 with the local address code of 26.
Then, the led driving apparatus 102 transmits the extended sequence test signal with the extended address code of 27 to the led lamps 106 of the led string 104; at this time, since there is no led lamp 106 with the local address code of 27, no led lamp 106 will emit light, and thus the consumption current of the at least one led string 104 is smaller than the second current, so that the led driving device 102 knows that there is no led lamp 106 with the local address code of 27.
And so on, until the led driving device 102 transmits the extended sequence test signal with the extended address code of 30 to the led lamps 106 of the led string 104, since the led lamp 106 with the local address code of 30 exists, the led lamp 106 with the local address code of 30 will emit light, and the consumption current of the led string 104 will be greater than or equal to the second current, so the led driving device 102 knows that the led lamp 106 with the local address code of 30 has been added to the led string 104, and the led driving device 102 stores and defines (records) the extended address code 30 as the substitute address code.
In one embodiment of the present invention, the present invention utilizes a current difference to detect a new led lamp 106; that is, when none of the led lamps 106 is on, a first current is obtained; taking the above embodiment as an example, the extended sequence test signal with the extended address code of 30 is transmitted to obtain a second current; the second current minus the first current is equal to the current difference; if the current difference is greater than or equal to a specific value (e.g., greater than or equal to the second current), the led driving apparatus 102 knows that the led lamp 106 with the local address code of 30 has been added to the at least one led string 104.
In an embodiment of the invention, even if the led driving apparatus 102 knows that the led lamp 106 with the local address code of 30 is new, the led driving apparatus 102 still transmits the plurality of extended sequence test signals with the plurality of extended address codes of 31-32 respectively to the led lamp 106 of the at least one led string 104 to leave the extended sequence test mode; however, the invention is not limited thereto, and once the led driving apparatus 102 knows that the led lamp 106 with the local address code of 30 is new, the invention can leave the extended sequence test mode (i.e. stop transmitting the extended sequence test signals). However, the plurality of extended sequential test signals remaining after transmission has one benefit: if another new LED lamp 106 is found, the LED driving device 102 can send an alert to notify the user that only one new LED lamp 106 can be added at a time; that is, when the number of the substitute address codes is greater than or equal to 2, the led driving apparatus 102 sends an alarm signal. Moreover, the extended address codes 31-32 are only examples, and can be the extended address codes 31-256, etc. ….
After the led driving apparatus 102 completes the extended sequential test mode to leave the extended sequential test mode, the led driving apparatus 102 replaces the failing address code with the replacing address code in the test sequence. That is, the led driving apparatus 102 replaces the default address code 05 with the extended address code 30 in the test sequence, and the test sequence becomes: 01. 02, 03, 04, 30, 06, 07 … 25.
Then, when the led driving apparatus 102 wants to drive the led lamp 106 with the local address code of 05 to emit light next time, the predetermined address code of the driving light-emitting signal becomes 30 (instead of 05). Finally, in an embodiment of the present invention, the led driving apparatus 102 may perform a re-confirmation action: the led driving apparatus 102 sequentially transmits the plurality of predetermined sequential test signals (test sequence: 01, 02, 03, 04, 30, 06, 07 … 25) to the led lamps 106 of the at least one led string 104, and correspondingly and sequentially detects the current consumption of the at least one led string 104; if the current consumption is greater than the first current each time, the replacement of the failing address code with the substitute address code is successfully performed.
For another example, the led lamp 106 with the local address code of 06 is also damaged, and the user replaces the damaged led lamp 106 with the local address code of 06 with another new led lamp 106 with the local address code of 31; in order to make the led driving apparatus 102 know that the led lamp 106 with the local address code 06 is damaged, and the damaged led lamp 106 with the local address code 06 is replaced by a new led lamp 106 with the local address code 31. The content is similar to that described above:
the test button 114 is pressed to make the led driving apparatus 102 enter the predetermined sequential test mode; the plurality of test signals with the preset address code of 01, 02, 03, 04, 30, 06 … 25 respectively have the test sequence of 01, 02, 03, 04, 30, 06 … 25; it is to be understood that the original 05 position has now been replaced by 30.
First, the led driving apparatus 102 transmits the predetermined sequential test signal with the predetermined address code of 01 to the led lamp 106 of the at least one led string 104; at this time, the led lamp 106 with the local address code of 01 will emit light to generate the consumption current (greater than the first current), so the led driving device 102 knows that the led lamp 106 with the local address code of 01 is normal. Similarly, the predetermined sequential test signals with the predetermined address codes 02, 03, 04 are sequentially transmitted; then, the predetermined sequential test signal having the predetermined address code of 30 is transmitted.
Then, the led driving apparatus 102 transmits the predetermined sequential test signal with the predetermined address code 06 to the led lamp 106 of the at least one led string 104, since the led lamp 106 with the local address code 06 has been replaced, no led lamp 106 will emit light, and the consumption current of the led string 104 will be less than or equal to the first current, so the led driving apparatus 102 knows that the led lamp 106 with the local address code 06 has been removed, and the led driving apparatus 102 stores and defines (records) the predetermined address code 06 as the failure address code.
After the led driving apparatus 102 completes the predetermined sequential test mode to leave the predetermined sequential test mode, the led driving apparatus 102 enters the extended sequential test mode. In the extended sequential test mode, since the extended address code 30 is used, the extended sequential test signals will have the extended address codes 26, 27, 28, 29, 31, 32, respectively.
First, the led driving apparatus 102 transmits the extended sequence test signal with the extended address code of 26 to the led lamps 106 of the led string 104; at this time, since there is no led lamp 106 with the local address code of 26, no led lamp 106 will emit light, and thus the consumption current of the at least one led string 104 is smaller than the second current, so that the led driving device 102 knows that there is no led lamp 106 with the local address code of 26. Similarly, the extended sequential test signals with the extended address codes 27, 28, 29 are then transmitted sequentially; then, the extended sequential test signal with the extended address code of 31 is transmitted.
When the led driving device 102 transmits the extended sequence test signal with the extended address code of 31 to the led lamp 106 of the at least one led string 104, since the led lamp 106 with the local address code of 31 exists, the led lamp 106 with the local address code of 31 will emit light, and the consumption current of the led string 104 will be greater than or equal to the second current, so that the led driving device 102 knows that the led lamp 106 with the local address code of 31 has been added to the at least one led string 104, and the led driving device 102 stores (records) the extended address code 31 as the substitute address code.
After the led driving apparatus 102 completes the extended sequential test mode to leave the extended sequential test mode, the led driving apparatus 102 replaces the failing address code with the replacing address code in the test sequence. That is, the led driving apparatus 102 replaces the default address code 06 with the extended address code 31 in the test sequence, and the test sequence is: 01. 02, 03, 04, 30, 31, 07 … 25. Then, when the led driving apparatus 102 wants to drive the led lamp 106 with the local address code of 06 to emit light next time, the predetermined address code of the driving light-emitting signal becomes 31 (instead of 06).
Furthermore, each of the predetermined sequential test signals further has a test light signal, and each of the extended sequential test signals further has the test light signal. When the led driving apparatus 102 sequentially transmits the predetermined sequential test signals to the led lamps 106 of the led string 104, if the predetermined address code of the predetermined sequential test signal received by the led lamp 106 is the same as the local address code of the led lamp 106, the led lamp 106 emits light according to the test light signal of the predetermined sequential test signal received by the led lamp 106 to generate the consumption current. When the led driving apparatus 102 transmits each of the extended sequence test signals to the led lamps 106 of the at least one led string 104, if the extended address code of the extended sequence test signal received by the led lamp 106 is the same as the local address code of the led lamp 106, the led lamp 106 emits light according to the test light signal of the extended sequence test signal received by the led lamp 106 to generate the consumption current. Wherein, to maximize the current consumption to facilitate the current detection, the test light signal drives all the leds in the led lamp 106 to emit light; for example, if the LED lamp 106 includes a red LED (not shown in FIG. 1), a green LED (not shown in FIG. 1), and a blue LED (not shown in FIG. 1), the red LED, the green LED, and the blue LED are driven together to emit white light.
Furthermore, the ac power supply device 20 transmits an ac power to the ac-to-dc converter 122; the ac-to-dc converter 122 receives the ac power and converts the ac power into a first dc power; the ac-to-dc converter 122 transmits the first dc power to the dc-to-dc converter 120; the dc-to-dc converter 120 converts the first dc power into a second dc power; the dc-dc converter 120 transmits the second dc power to the led driving apparatus 102. The transmitter controller 108 controls the transmitter switch 110 (conducting or not conducting) to generate the predetermined sequential test signals and the extended sequential test signals; the initiator memory 112 is used for storing the test sequence, the fail address code and the substitute address code; the current detector 116 is used to detect the consumption current of the at least one led string 104 to inform the transmitting controller 108 of the consumption current of the at least one led string 104, and the current detector 116 may comprise a resistor element …; the rf receiver 118 is used for receiving a wireless remote control signal to control the transmitter controller 108. The third connector 172 is used to connect another led string 104, a plurality of led strings 104 connected in series can be controlled by a single led driving device 102, and the number of the led strings 104 connected in series can be maximized according to the requirement and the local supply voltage.
Please refer to fig. 2, which is a block diagram (parallel type) of the led lamp according to the present invention; the light emitting diode lamp 106 shown in fig. 2 is applied to fig. 1. Each led lamp 106 comprises a voltage divider 126, a receiver driver 128, a third resistor 144, a fourth resistor 146, a fifth resistor 148, a first transistor switch 150, a second transistor switch 152, a third transistor switch 154, a first led 156, a second led 158, a third led 160, a sixth resistor 162, a seventh resistor 164, and an eighth resistor 166; the voltage divider 126 includes a first resistor 132, a second resistor 134, a first zener diode 136, a second zener diode 138, a diode 140 and a capacitor 142; the plurality of elements are electrically connected to each other.
In more detail, one end of the first resistor 132 is connected to the led driving apparatus 102, and the other end of the first resistor 132 is connected to the receiving-end driver 128; one end of the second resistor 134 is connected to the receiver driver 128 and the other end of the first resistor; the cathode of the first zener diode 136 is connected to the receiving terminal driver 128, the other end of the first resistor 132 and one end of the second resistor 134, and the anode of the first zener diode 136 is connected to the receiving terminal driver 128 and the led driving device 102; the cathode of the second zener diode 138 is connected to the other end of the second resistor, and the anode of the second zener diode 138 is connected to the anodes of the receiver driver 128, the led driving device 102 and the first zener diode 136; a cathode of the diode 140 is connected to the receiver driver 128, the other end of the first resistor 132, one end of the second resistor 134, and a cathode of the first zener diode, and an anode of the diode 140 is connected to the other end of the second resistor 134 and the cathode of the second zener diode; one end of the capacitor 142 is connected to the other end of the second resistor 134, the cathode of the second zener diode 138 and the anode of the diode 140, and the other end of the capacitor 142 is connected to the receiver driver 128, the led driving device 102, the anode of the first zener diode 136 and the anode of the second zener diode 138.
The receiver driver 128 is configured to determine whether the predetermined address code of the predetermined sequential test signal received by the led lamp 106 is the same as the local address code of the led lamp 106; if the receiving-end driver 128 determines that the preset address code of the preset sequential test signal received by the led lamp 106 is the same as the local address code of the led lamp 106, the receiving-end driver 128 drives the first led 156, the second led 158, and the third led 160 to emit light according to the test light-emitting signal of the preset sequential test signal received by the led lamp 106 to generate the consumption current.
The receiver driver 128 is configured to determine whether the extended address code of the extended sequence test signal received by the led lamp 106 is the same as the local address code of the led lamp 106; if the receiving-end driver 128 determines that the extended address code of the extended sequence test signal received by the led lamp 106 is the same as the local address code of the led lamp 106, the receiving-end driver 128 drives the first led 156, the second led 158, and the third led 160 to emit light according to the test light-emitting signal of the extended sequence test signal received by the led lamp 106 to generate the consumption current.
The receiving-end driver 128 is configured to determine whether the preset address code of the driving light-emitting signal received by the led lamp 106 is the same as the local address code of the led lamp 106; if the receiving-end driver 128 determines that the preset address code of the driving light-emitting signal received by the led lamp 106 is the same as the local address code of the led lamp 106, the receiving-end driver 128 drives the first led 156, the second led 158, and/or the third led 160 to emit light according to the light-emitting code of the driving light-emitting signal received by the led lamp 106.
The voltage divider 126 is used to reduce the power (i.e., stabilize the voltage) provided by the led driving apparatus 102 to provide power to the receiver driver 128; the receiver driver 128 is used to store the local address code.
Please refer to fig. 3, which is an external view of the led lamp according to the present invention; the led lamp 106 is an led bulb and is mounted in a socket (not shown in fig. 3) of the led string 104.
Referring back to fig. 1, the third connector 172 is used to connect to the second connector 170 of another led string 104; when a plurality of led strings 104 are connected in series via the second connectors 170 and the third connectors 172, if a led lamp 106 of a led string 104 is replaced by a new led lamp 106, the sequencing method of the present invention comprises the following steps:
first, the sending-end controller 108 knows the current consumption (e.g., 125 mA) of a led string 104 when none of the led lamps 106 of the led string 104 are on; therefore, when the led string system with sequencing function 10 is connected to the ac power supply 20, the led driving device 102 does not drive any of the led strings 104 and uses the current detector 116 to detect the consumption current to calculate the number of the led strings 104; for example, if the consumption current is 375mA at this time, the number of the led strings 104 is 3 strings (375/125 = 3).
Then, similar to the above method, the above standard of the current consumption becomes a multiple of the number of the led strings 104, such as 3 times; therefore, for example, when the criterion of only 2 times the consumption current is detected, the replaced LED lamp 106 can be found. Finally, the search for a new led lamp 106 is as described above, and therefore will not be described herein.
In other words, in an embodiment of the present invention, the led string system 10 with sequencing function includes N led strings 104, where N is an integer greater than 1, and the N led strings 104 are connected in series. When the led driving apparatus 102 is in a string quantity detection mode: the led driving apparatus 102 stops driving the led lamps 106 of the N led strings 104 to emit light, so as to detect the current consumption of the N led strings 104, and accordingly, calculate the number of the N led strings 104 as N.
When the led driving apparatus 102 is in the predetermined sequential test mode: according to the test sequence of the preset address codes, the led driving apparatus 102 sequentially transmits the preset sequence test signals to the N led strings 104, and correspondingly and sequentially detects the current consumption of the N led strings 104; when the consumption current is less than or equal to N times the first current, the led driving apparatus 102 stores and defines the predetermined address code of the predetermined sequential test signal corresponding to the consumption current being less than or equal to N times the first current as the fail address code.
When the led driving apparatus 102 is in the extended sequential test mode: the led driving apparatus 102 transmits each of the extended sequence test signals to the N led strings 104, and correspondingly detects the current consumption of the N led strings 104; when the consumption current is greater than or equal to the second current, the led driving apparatus 102 stores and defines the extended address code of the extended sequential test signal corresponding to the consumption current being greater than or equal to the second current as the substitute address code. The rest of the contents are the same as those described above, and thus, the description thereof is omitted.
Please refer to fig. 5, which is a block diagram (in series) of another embodiment of the led light string system with sequencing function according to the present invention; please refer to fig. 8, which is a block diagram (in series) of a led string system with a sequencing function according to another embodiment of the present invention. In fig. 5 and 8, the led lamps 106 are connected in series, and the rest of fig. 5 and 8 are the same as the above, so the description thereof is omitted.
Please refer to fig. 6, which is a block diagram of a led lamp according to the present invention (in series); the led lamp 106 shown in fig. 6 is applied to fig. 5 and 8. Each led lamp 106 comprises a voltage regulator 174, an oscillator 176, a signal conversion unit 178, an address and data identifier 180, a logic controller 182, a shift register 184, an output register 186, an led driver circuit 188, an address register 190, an address comparator 192, an address memory 194, a first led 156, a second led 158, and a third led 160; the plurality of elements are electrically connected to each other.
Please refer to fig. 7, which is a voltage-current curve diagram of the voltage regulator according to the present invention; please refer to fig. 5, fig. 6 and fig. 8 at the same time; the voltage regulator 174 may be, for example, a zener diode. If the voltage regulator 174 operates normally, the LED lamp 106 is operated to perform the light-emitting or non-light-emitting (current consumption or no current consumption) of the first LED 156, the second LED 158, and the third LED 160; the voltage variation caused by such current variation is not large, so the current detector 116 cannot effectively detect the current consumption; for example, in the vicinity of the voltage VN in fig. 7, the voltage variation corresponding to the first current section R1 is not large.
To increase the voltage variation, the regulator 174 must be disabled; if the voltage regulator 174 stops operating, the current change will cause a larger voltage change when the led lamp 106 is on or off, so that the current detector 116 can effectively detect the current consumption to notify the sending-end controller 108; for example, before the voltage VL in fig. 7, the voltage variation corresponding to the second current interval R2 is larger, wherein the first current interval R1 is equal to the second current interval R2; obviously, the voltage variation corresponding to the second current interval R2 is greater than the voltage variation corresponding to the first current interval R1.
There are two ways to disable the regulator 174: one way is to reduce a driving voltage of the regulator 174, so that the regulator 174 stops operating; alternatively, the led driving apparatus 102 sends a command signal to the logic controller 182, so that the logic controller 182 turns off the voltage regulator 174.
In more detail, the series arrangement adds the voltage regulator 174 compared to the parallel arrangement; the primary purpose is to maintain each of the led lamps 106 in the series path at a close voltage; since the color of each led lamp 106 is not necessarily the same, the equivalent impedance is not the same, and the regulator 174 is in the process of adjusting for this problem; this function would conflict with the previously described method of using current differences to determine which position is unlit and the new address code lamp; therefore, when the detection mode is to be entered, there are two ways to disable the regulator 174:
1. before the predetermined sequential test mode and the extended sequential test mode are performed, the driving voltage of the voltage regulator 174 is decreased to make each led lamp 106 operate at the voltage VL at which the voltage regulator 174 is not turned on; i.e., disable the voltage regulator 174.
2. Before the predetermined sequential test mode and the extended sequential test mode are performed, the led driving apparatus 102 transmits the command signal to the logic controller 182, so that the logic controller 182 turns off the voltage regulator 174.
The other contents of the serial connection are the same as those of the parallel connection. In addition, the series connection type lamp bead can be used because the series connection type lamp bead does not have the problem that the parallel connection type lamp bead needs to reduce high direct current voltage to supply power to electronic parts, and the series connection type circuit is simpler.
Please refer to fig. 4, which is a flowchart of the sequencing method according to the present invention. One sequencing method of the present invention comprises the steps of:
step S02: a light emitting diode driving device executes a preset sequence test mode to detect a failure address code. Next, the sequencing method proceeds to step S04.
Step S04: the LED driving device executes an extended sequence test mode to detect a substitute address code. Next, the sequencing method proceeds to step S06.
Step S06: the LED driving device replaces the failure address code with the substitute address code in a test sequence.
Wherein, the LED driving device executing the preset sequence test mode comprises the following contents: the light emitting diode driving device generates a plurality of preset sequence test signals, wherein each preset sequence test signal has a preset address code, and the preset address codes are different; according to the test sequence of the preset address codes, the led driving apparatus sequentially transmits the preset sequence test signals to an led string to detect a current consumption of the led string, wherein the preset address codes are arranged in order of magnitude within the test sequence, wherein the led string comprises a plurality of led lamps electrically connected with each other (i.e., connected in parallel or in series); if the consumed current is less than or equal to a first current, the LED driving device records the preset address code of the preset sequence test signal corresponding to the consumed current being less than or equal to the first current as the failure address code.
Wherein, the led driving apparatus executing the extended sequence test mode comprises the following contents: the light emitting diode driving device generates a plurality of extension sequence test signals, wherein each extension sequence test signal is provided with an extension address code, the extension address codes are different, and the extension address codes are different from the preset address codes; the LED driving device respectively transmits each extension sequence test signal to the LED lamp string so as to detect the consumption current of the LED lamp string; if the consumed current is larger than or equal to a second current, the light-emitting diode driving device records the extended address code of the extended sequential test signal corresponding to the consumed current being larger than or equal to the second current as the substitute address code.
Wherein, each LED lamp has a local address code; the plurality of local address codes are different; each preset sequence test signal further has a test light-emitting signal; each of the extended sequence test signals further has the test emission signal. When the led driving apparatus sequentially transmits the preset sequential test signals to the led lamps of the led string, if the preset address code of the preset sequential test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light-emitting signal of the preset sequential test signal received by the led lamp to generate the consumption current. When the led driving apparatus transmits each of the extended sequence test signals to the plurality of led lamps of the led string, if the extended address code of the extended sequence test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light signal of the extended sequence test signal received by the led lamp to generate the consumption current.
The rest of the sequencing method of the present invention is similar to the above, and for brevity, will not be described again here.
The invention has the effect that the new LED lamp can replace the damaged LED lamp to correctly emit light according to the content of the driving light-emitting signal.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (12)
1. An led light string system with sequencing functionality, comprising:
a light emitting diode driving device; and
at least one LED lamp string electrically connected to the LED driving device,
wherein the at least one LED light string comprises:
a plurality of LED lamps electrically connected to the LED driving device, the plurality of LED lamps being electrically connected to each other,
when the LED driving device is in a preset sequence test mode: the light emitting diode driving device is used for generating a plurality of preset sequence test signals; each preset sequence test signal is provided with a preset address code; the preset address codes are different; according to a test sequence of the preset address codes, the light-emitting diode driving device sequentially transmits the preset sequence test signals to the at least one light-emitting diode lamp string and correspondingly and sequentially detects a consumption current of the at least one light-emitting diode lamp string; when the consumed current is less than or equal to a first current, the light-emitting diode driving device stores and defines the preset address code of the preset sequence test signal corresponding to the consumed current which is less than or equal to the first current as a failure address code;
wherein when the LED driving device is in an extended sequential test mode: the light emitting diode driving device is used for generating a plurality of extension sequence test signals; each extended sequential test signal has an extended address code; each of the extended address codes is different; the extended address code is different from the preset address code; the LED driving device respectively transmits each extension sequence test signal to the at least one LED lamp string and correspondingly detects the consumption current of the at least one LED lamp string; when the consumed current is larger than or equal to a second current, the light-emitting diode driving device stores and defines the extended address code of the extended sequence test signal corresponding to the consumed current which is larger than or equal to the second current as a substitute address code;
the LED driving device replaces the failure address code with the substitute address code in the test sequence.
2. The LED light string system of claim 1, wherein each LED light has a local address code; each of the local address codes is different; each preset sequence test signal further has a test light-emitting signal; each of the extended sequence test signals further has the test emission signal; when the led driving apparatus sequentially transmits the plurality of predetermined sequential test signals to the plurality of led lamps of the at least one led string, if the predetermined address code of the predetermined sequential test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light signal of the predetermined sequential test signal received by the led lamp to generate the consumed current; when the led driving apparatus transmits each of the extended sequence test signals to the plurality of led lamps of the at least one led string, if the extended address code of the extended sequence test signal received by the led lamp is the same as the local address code of the led lamp, the led lamp emits light according to the test light-emitting signal of the extended sequence test signal received by the led lamp to generate the consumption current.
3. The led light string system with sequencing function of claim 1, wherein the led driving device comprises:
a transmitting end controller; and
a transmitting end switch electrically connected to the transmitting end controller and the at least one LED string,
the transmitting terminal controller is used for controlling the transmitting terminal switch to generate the plurality of preset sequence test signals and the plurality of extension sequence test signals.
4. The LED light string system with sequencing function of claim 3, wherein the LED driving device further comprises:
a transmitting end memory electrically connected to the transmitting end controller; and
a test button electrically connected to the transmitter controller,
the sending end memory is used for storing the test sequence, the failure address code and the substitute address code; when the test button is pressed, the light-emitting diode driving device enters the preset sequence test mode; after the light emitting diode driving device completes the preset sequential test mode to leave the preset sequential test mode, the light emitting diode driving device enters the extended sequential test mode; after the led driving apparatus completes the extended sequential test mode to leave the extended sequential test mode, the led driving apparatus replaces the failing address code with the substitute address code in the test sequence.
5. The LED light string system of claim 3, wherein the LED driving device further comprises:
a current detector electrically connected to the transmitting terminal controller and the transmitting terminal switch; and
a radio frequency receiver electrically connected to the transmitter controller and the current detector,
wherein the current detector is used for detecting the consumption current of the at least one LED light string to inform the sending-end controller of the consumption current of the at least one LED light string; the radio frequency receiver is used for receiving a wireless remote control signal to control the sending end controller.
6. The led light string system with sequencing function of claim 2, wherein each led light comprises:
a voltage dividing circuit electrically connected to the LED driving device; and
a receiving end driver electrically connected to the voltage dividing circuit,
the voltage division circuit is used for reducing the power supply provided by the light-emitting diode driving device so as to supply power to the receiving end driver; the receiving end driver is used for judging whether the preset address code of the preset sequential test signal received by the light-emitting diode lamp is the same as the local address code of the light-emitting diode lamp or not and judging whether the extended address code of the extended sequential test signal received by the light-emitting diode lamp is the same as the local address code of the light-emitting diode lamp or not; the receiving end driver is used for storing the local address code.
7. The LED light string system with sequencing function of claim 6, wherein the voltage divider circuit comprises:
the first resistor is electrically connected to the light-emitting diode driving device and the receiving end driver;
the second resistor is electrically connected to the receiving end driver and the first resistor;
a first zener diode electrically connected to the receiver driver, the first resistor and the second resistor;
the second Zener diode is electrically connected to the second resistor;
a diode electrically connected to the receiving end driver, the first resistor, the second resistor, the first zener diode and the second zener diode; and
and the capacitor is electrically connected to the second resistor, the second Zener diode and the diode.
8. The led light string system of claim 7, wherein each led light further comprises:
the third resistor is electrically connected to the receiving end driver;
the fourth resistor is electrically connected to the receiving end driver;
a fifth resistor electrically connected to the receiver driver;
a first transistor switch electrically connected to the third resistor;
a second transistor switch electrically connected to the fourth resistor;
a third transistor switch electrically connected to the fifth resistor;
a first light emitting diode electrically connected to the first transistor switch;
a second light emitting diode electrically connected to the second transistor switch;
a third light emitting diode electrically connected to the third transistor switch;
the sixth resistor is electrically connected to the first light-emitting diode, the first resistor and the light-emitting diode driving device;
the seventh resistor is electrically connected to the second light-emitting diode, the first resistor and the light-emitting diode driving device; and
and the eighth resistor is electrically connected to the third light-emitting diode, the first resistor and the light-emitting diode driving device.
9. The led light string system with sequencing function of claim 2, wherein each led light comprises:
a voltage stabilizer electrically connected to the LED driving device; and
a logic controller electrically connected to the voltage regulator,
before the preset sequence test mode and the extended sequence test mode are carried out, a driving voltage of the voltage stabilizer is reduced, and each light-emitting diode lamp works at the voltage at which the voltage stabilizer is not conducted.
10. The led light string system with sequencing function of claim 2, wherein each led light comprises:
a voltage stabilizer electrically connected to the LED driving device; and
a logic controller electrically connected to the voltage regulator,
before the preset sequential test mode and the extended sequential test mode are carried out, the light-emitting diode driving device transmits a command signal to the logic controller, so that the logic controller turns off the voltage stabilizer.
11. A method of sequencing, comprising:
executing a predetermined sequential test pattern to detect a fail address code;
executing an extended sequence test mode to detect a substitute address code; and
replacing the failing address code with the replacing address code in a test sequence,
wherein executing the predetermined sequential test pattern comprises:
generating a plurality of preset sequential test signals, wherein each preset sequential test signal has a preset address code, and the preset address codes are different;
sequentially transmitting the plurality of preset sequence test signals to a light-emitting diode lamp string according to the test sequence of the plurality of preset address codes so as to detect a consumed current of the light-emitting diode lamp string, wherein the light-emitting diode lamp string comprises a plurality of light-emitting diode lamps which are electrically connected with each other; and
if the consumed current is less than or equal to a first current, recording the default address code of the default sequential test signal corresponding to the consumed current being less than or equal to the first current as the fail address code,
wherein executing the extended sequential test pattern comprises:
generating a plurality of extended sequence test signals, wherein each extended sequence test signal has an extended address code, the extended address codes are different, and the extended address codes are different from the preset address codes;
transmitting each extension sequence test signal to the LED light string to detect the consumption current of the LED light string; and
if the consumed current is larger than or equal to a second current, recording the extended address code of the extended sequential test signal corresponding to the consumed current being larger than or equal to the second current as the substitute address code.
12. The sequencing method of claim 11, wherein each of said led lamps has a local address code; the plurality of local address codes are different; each preset sequence test signal further has a test light-emitting signal; each of the extended sequence test signals further has the test emission signal; when the preset sequence test signals are sequentially transmitted to the plurality of light emitting diode lamps of the light emitting diode lamp string, if the preset address code of the preset sequence test signal received by the light emitting diode lamp is the same as the local address code of the light emitting diode lamp, the light emitting diode lamp emits light according to the test light emitting signal of the preset sequence test signal received by the light emitting diode lamp to generate the consumption current; when each extended sequence test signal is transmitted to the plurality of light emitting diode lamps of the light emitting diode lamp string, if the extended address code of the extended sequence test signal received by the light emitting diode lamp is the same as the local address code of the light emitting diode lamp, the light emitting diode lamp emits light according to the test light emitting signal of the extended sequence test signal received by the light emitting diode lamp to generate the consumption current.
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| CN109041321A (en) * | 2018-05-22 | 2018-12-18 | 擎茂微电子（深圳）有限公司 | Power supply line band carries the address code recognition methods for driving multiple parallel connection LED lamp bodies |
| CN109027736A (en) * | 2018-06-14 | 2018-12-18 | 擎茂微电子（深圳）有限公司 | A kind of second-level addressing method of the program-controlled lamp string of LED of power supply line transmission signal |
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