A breakpoint resuming lamp detection method and system

Abstract

The application discloses a kind of breakpoint continuation lamps and lanterns detection methods, comprising the following steps: controller VOUT port output voltage is provided with power supply for lamps and lanterns;Controller DOUT2 port sends first frame gray data DATA1 and second frame gray data DATA2, and lamps and lanterns receive first frame gray data DATA1 as test data after power-on;Controller DOUT1 port sends and DOUT2 port same gray data DATA1 and gray data DATA2;Lamps and lanterns receive first frame gray data DATA1 as test data after power-on;Lamps and lanterns determine whether the situation that lamps and lanterns DIN1 port or DIN2 port is suspended, VIN and GND short circuit by comparing whether DIN1 port and DIN2 port data buffer value is same;Or lamps and lanterns determine whether DIN1 port and DIN2 port short circuit by comparing the time difference value that DIN1 port and DIN2 port receive data.This application has the advantages of improving production yield, improving production efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of lighting fixture testing, and more particularly to a method and system for testing lighting fixtures that allow for breakpoint resumption. Background Technology

[0002] In existing lighting fixtures, due to the characteristics of breakpoint resume lighting, the failure of a single fixture does not affect the signal transmission of subsequent fixtures. Because this breakpoint resume lighting protocol is compatible with traditional lighting protocols, it is impossible to extend the control protocol with a dedicated signal status detection protocol. Furthermore, the high impedance of the lighting fixture signal input ports makes it difficult to determine the cause of anomalies using other electrical parameters. During the production and testing of lighting fixtures, the inability to determine whether the transmitted signal status is normal increases the defect rate in mass-produced finished products.

[0003] This invention provides a detection method for luminaires that resume operation after interruption. When compatible with signal transmission protocols, it can display the abnormal status of the signal line when the luminaire is powered on, thereby improving the yield rate of the luminaire in subsequent production. Summary of the Invention

[0004] This invention provides a method and system for detecting breakpoint resume lighting fixtures, which can be used in conjunction with a controller to detect abnormal states of signal lines. It has advantages such as improving production yield and efficiency, and solves the problem that it is impossible to determine whether the transmission signal status is normal in the production testing of lighting fixtures.

[0005] A method for detecting a lighting fixture that can resume operation after a breakpoint, according to an embodiment of this application, includes the following steps:

[0006] Step S1: The controller's VOUT port outputs voltage to provide power to the lamps;

[0007] Step S2: The controller DOUT2 port sends the first frame of grayscale data DATA1 and the second frame of grayscale data DATA2. The lamp will regard the first frame of grayscale data DATA1 received upon power-on as test data.

[0008] Step S3: The controller DOUT1 port sends the same grayscale data DATA1 and grayscale data DATA2 as the DOUT2 port;

[0009] Step S4: The lamp takes the first frame of grayscale data DATA1 received upon power-on as test data;

[0010] Step S5: The luminaire determines whether the DIN1 or DIN2 port is floating or short-circuited to VIN and GND by comparing the data buffer values ​​of the DIN1 and DIN2 ports.

[0011] Alternatively, the lighting fixture can determine whether there is a short circuit between the DIN1 and DIN2 ports by comparing the time difference between the data received from the DIN1 and DIN2 ports.

[0012] Preferably, step S5 includes the following steps:

[0013] S501: All luminaires in the system temporarily store the test data DATA1 received from the DIN1 and DIN2 ports in their internal data buffers.

[0014] S502: After receiving the test data DATA1, the luminaire will automatically compare the values ​​of the data buffers of the DIN1 and DIN2 ports;

[0015] S503: Determine if the values ​​of the data buffers for ports DIN1 and DIN2 are the same;

[0016] S504: If the values ​​of the data buffers of DIN1 and DIN2 ports are the same, the luminaire will start to receive and display the grayscale values ​​contained in the grayscale data DATA2 normally.

[0017] S505: If the values ​​of the data buffers of DIN1 and DIN2 ports are different, it is determined that the state of the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal state grayscale is displayed after DATA2 is received.

[0018] S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

[0019] Preferably, step S5 further includes the following steps:

[0020] S507: First lamp DIN2 port receives test data DATA1;

[0021] S508: DIN1 port receives test data DATA1;

[0022] S509: In subsequent lighting fixtures, the DIN2 port is connected to the DIN1 port of the preceding lighting fixture. Therefore, under normal conditions, the time for the DIN1 port to start receiving test data DATA1 should be longer than the time for the DIN2 port to start receiving test data DATA1.

[0023] S510: When the DIN1 port and DIN2 port of the luminaire are short-circuited, the DIN1 port and DIN2 port of the luminaire will receive test data DATA1 at the same time;

[0024] S511: When it is detected that the DIN1 port and the first lamp DIN2 port are receiving test data DATA1 at the same time, it is determined that the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal status grayscale is displayed after DATA2 is received.

[0025] S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

[0026] A breakpoint resume lighting fixture detection system, using the aforementioned breakpoint resume lighting fixture detection method, includes a controller, multiple lighting fixtures, and a power supply. The controller is connected in series with the multiple lighting fixtures and the power supply. The controller is connected to the lighting fixtures through DOUT1 and DOUT2 ports. The power supply is used to provide power to the controller. The controller internally uses a switch or adjusts the input power voltage to supply power to the multiple lighting fixtures.

[0027] The technical solutions provided in this application embodiment may include the following beneficial effects:

[0028] This invention determines whether a luminaire's DIN1 or DIN2 port is floating or short-circuited to VIN and GND by comparing the data buffer values ​​of the DIN1 and DIN2 ports; or it determines whether the DIN1 and DIN2 ports are short-circuited by comparing the time difference between the data received by the luminaire and the DIN2 ports. When the signal transmission protocol is compatible, the abnormal status of the signal line can be displayed when the luminaire is powered on, thereby improving the yield rate of the luminaire in subsequent production.

[0029] This invention determines the status of the lamp's signal line by detecting the first frame of grayscale data upon power-on. If the signal line status is normal, the lamp displays the grayscale value corresponding to the received data; if the signal status is abnormal, the lamp displays an abnormal lighting state. Abnormal signal line statuses include: open circuit in the signal line, short circuit between signal lines, and short circuit between the signal line and the power supply. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the prior art of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0033] Figure 3 This is a flowchart illustrating the first embodiment of the present invention;

[0034] Figure 4 This is a flowchart illustrating step S5 in the first embodiment of the present invention;

[0035] Figure 5This is a flowchart illustrating step S5 in the first embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the control signals according to the first embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the second embodiment of the present invention. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] Please see Figure 1 , Figure 1 This is a schematic diagram of a traditional breakpoint resume lighting system. In existing technology, the controller and the lighting fixture can use the same power supply or multiple power supplies. The controller connects to the lighting fixture via ports DOUT1 and DOUT2. Due to the signal redundancy characteristics of breakpoint resume lighting fixtures, signal abnormalities at ports DIN1 or DIN2 will not affect the normal operation of the lighting fixture. Therefore, abnormalities at ports DIN1 or DIN2 cannot be detected under these circumstances.

[0042] Please see Figure 2 and Figure 3 The first embodiment of the present invention provides a method 10 for detecting lamps that resume operation after a breakpoint, comprising the following steps:

[0043] Step S1: The controller's VOUT port outputs voltage to provide power to the lamps;

[0044] Step S2: The controller DOUT2 port sends the first frame of grayscale data DATA1 and the second frame of grayscale data DATA2. The lamp will regard the first frame of grayscale data DATA1 received upon power-on as test data.

[0045] Step S3: The controller DOUT1 port sends the same grayscale data DATA1 and grayscale data DATA2 as the DOUT2 port;

[0046] Step S4: The lamp takes the first frame of grayscale data DATA1 received upon power-on as test data;

[0047] Step S5: The luminaire determines whether the DIN1 or DIN2 port is floating or short-circuited to VIN and GND by comparing the data buffer values ​​of the DIN1 and DIN2 ports.

[0048] Alternatively, the lighting fixture can determine whether there is a short circuit between the DIN1 and DIN2 ports by comparing the time difference between the data received from the DIN1 and DIN2 ports.

[0049] During steps S1-S4, the amount of grayscale data contained in DATA1 and DATA2 is always greater than the total number of lamps carried by the system.

[0050] Please see Figure 4 Step S5 includes the following steps:

[0051] S501: All luminaires in the system temporarily store the test data DATA1 received from the DIN1 and DIN2 ports in their internal data buffers.

[0052] S502: After receiving the test data DATA1, the luminaire will automatically compare the values ​​of the data buffers of the DIN1 and DIN2 ports;

[0053] S503: Determine if the values ​​of the data buffers for ports DIN1 and DIN2 are the same;

[0054] S504: If the values ​​of the data buffers of DIN1 and DIN2 ports are the same, the luminaire will start to receive and display the grayscale values ​​contained in the grayscale data DATA2 normally.

[0055] S505: If the values ​​of the data buffers of DIN1 and DIN2 ports are different, it is determined that the state of the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal state grayscale is displayed after DATA2 is received.

[0056] S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

[0057] The above method can be used to detect if the DIN1 or DIN2 port of the lamp is floating or short-circuited to VIN and GND.

[0058] Please seeFigure 5 Step S5 further includes the following steps:

[0059] S507: First lamp DIN2 port receives test data DATA1;

[0060] S508: DIN1 port receives test data DATA1;

[0061] S509: In subsequent lighting fixtures, the DIN2 port is connected to the DIN1 port of the preceding lighting fixture. Therefore, under normal conditions, the time for the DIN1 port to start receiving test data DATA1 should be longer than the time for the DIN2 port to start receiving test data DATA1.

[0062] S510: When the DIN1 port and DIN2 port of the luminaire are short-circuited, the DIN1 port and DIN2 port of the luminaire will receive test data DATA1 at the same time;

[0063] S511: When it is detected that the DIN1 port and the first lamp DIN2 port are receiving test data DATA1 at the same time, it is determined that the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal status grayscale is displayed after DATA2 is received.

[0064] S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

[0065] This process can detect short circuits between the DIN1 and DIN2 ports of a lighting fixture.

[0066] Please see Figure 6 , Figure 6 This is a schematic diagram of the control signals for a breakpoint resume lighting detection method 10 according to the first embodiment of the present invention. t0-t4 is one signal test cycle. At time t1, the controller VOUT port outputs voltage to provide power to the lighting fixture. At time t2, the lighting fixture's power supply is stable, and the controller DOUT2 port begins sending the first frame of grayscale data DATA1 and the second frame of grayscale data DATA2. At time t3, the controller DOUT1 port sends the same grayscale data DATA1 and grayscale data DATA2 as the DOUT2 port. The lighting fixture considers the first frame of grayscale data DATA1 received upon power-on as test data. During this process, the amount of grayscale data contained in DATA1 and DATA2 is always greater than the total number of lighting fixtures supported by the system.

[0067] The luminaire determines whether DIN1 and DIN2 ports are short-circuited by comparing the time difference between the data received from DIN1 and DIN2 ports. Under normal conditions, the signal reception timing is as follows: the first lamp's DIN2 port begins receiving the first frame of test data DATA1 at time t2, and the DIN1 port begins receiving test data DATA1 at time t3. In subsequent luminaires, the DIN2 port is connected to the DIN1 port of the preceding luminaire. Therefore, under normal conditions, the time t3 for DIN1 port to begin receiving the first frame of test data DATA1 should be greater than the time t2 for DIN2 port to begin receiving the first frame of test data DATA1. When a short circuit occurs between DIN1 and DIN2 ports, both ports will simultaneously receive test data DATA1. When t3-t2=0 is detected, the luminaire port is deemed abnormal, the received second frame of grayscale data DATA2 is considered invalid, and the internally set abnormal grayscale status is displayed after DATA2 reception is complete.

[0068] When a luminaire receives test data DATA1 upon power-up and determines that its port status is abnormal, the received second frame of grayscale data DATA2 is considered invalid. After receiving the second frame of grayscale data DATA2, the internally set abnormal status grayscale is displayed. The luminaire will resume normal display after receiving the third frame of grayscale data DATA3. In test mode, only two frames of data, DATA1 and DATA2, are sent after power-up before starting the next test cycle. Therefore, in test mode, if any luminaire experiences a port status abnormality, the internally set abnormal status grayscale will be displayed in all test cycles. A breakpoint-resume luminaire detection method 10 quickly locates the abnormal luminaire during the test. Under normal use conditions (such as...), Figure 1 In traditional breakpoint resume lighting fixtures, the controller continuously sends data after the fixture is powered on, without any interruption or resume transmission. Figure 6 The signal test cycle shown indicates that even if the lamp port malfunctions, the lamp will return to normal after receiving the third frame of grayscale data DATA3 because the time intervals of DATA1 and DATA2 are extremely short. Therefore, it will not affect the normal display effect of the lamp.

[0069] Within the same test cycle, DATA1 and DATA2 data can be the same. In different test cycles, grayscale data DATA1 and DATA2 corresponding to different channels of the lamp can be set, so that lamp port abnormalities and lamp channel abnormalities can be tested simultaneously in fewer test cycles.

[0070] Please see Figure 7The second embodiment of the present invention provides a breakpoint resume lighting detection system 100, which uses the above-mentioned breakpoint resume lighting detection method 10, including a controller 11, multiple lighting fixtures 12 and a power supply 13. The controller 11 is connected in series with the multiple lighting fixtures 12 and the power supply 13. The controller 11 is connected to the lighting fixtures 12 through DOUT1 and DOUT2 ports. The power supply 13 is used to provide power to the controller 11. The controller 11 internally uses a switch or adjusts the input power voltage to supply power to the multiple lighting fixtures 12.

[0071] The technical solutions provided in this application embodiment may include the following beneficial effects:

[0072] This invention determines whether a luminaire's DIN1 or DIN2 port is floating or short-circuited to VIN and GND by comparing the data buffer values ​​of the DIN1 and DIN2 ports; or it determines whether the DIN1 and DIN2 ports are short-circuited by comparing the time difference between the data received by the luminaire and the DIN2 ports. When the signal transmission protocol is compatible, the abnormal status of the signal line can be displayed when the luminaire is powered on, thereby improving the yield rate of the luminaire in subsequent production.

[0073] This invention determines the status of the lamp's signal line by detecting the first frame of grayscale data upon power-on. If the signal line status is normal, the lamp displays the grayscale value corresponding to the received data; if the signal status is abnormal, the lamp displays an abnormal lighting state. Abnormal signal line statuses include: open circuit in the signal line, short circuit between signal lines, and short circuit between the signal line and the power supply.

[0074] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for detecting luminaires that resume operation after a breakpoint, applied to luminaires that resume operation after a breakpoint, characterized in that, The breakpoint resume lighting fixture includes a controller and multiple parallel lighting fixtures. Each lighting fixture includes a VIN, GND, DIN1 port, DIN2 port, and DOUT port. The controller includes a VIN, VOUT, GND, DOUT1 port, and DOUT2 port. The VIN of each lighting fixture is connected to the VOUT of the controller, and the GND of each lighting fixture is connected to the GND of the controller. The DOUT1 port of the controller is connected to the DIN1 port of the first lighting fixture, and the DOUT2 port of the controller is connected to the DIN2 port of the first lighting fixture. The DIN1 port of the preceding lighting fixture is connected to the DIN2 port of the following lighting fixture, and the DOUT port of the preceding lighting fixture is connected to the DIN1 port of the following lighting fixture. The breakpoint resume lighting fixture detection method includes the following steps: Step S1: The power supply VOUT port is connected to the VIN of the controller, and the output voltage provides power to each lamp. Step S2: The controller DOUT2 port sends the first frame of grayscale data DATA1 and the second frame of grayscale data DATA2; Step S3: The controller DOUT1 port sends the same grayscale data DATA1 and grayscale data DATA2 as the DOUT2 port; Step S4: The lamp takes the first frame of grayscale data DATA1 received upon power-on as test data; Step S5: The luminaire determines whether the DIN1 or DIN2 port is floating or short-circuited to VIN and GND by comparing the data buffer values ​​of the DIN1 and DIN2 ports. Step S5 includes: S501: All luminaires in the system temporarily store the test data DATA1 received from the DIN1 and DIN2 ports in their internal data buffers. S502: After receiving the test data DATA1, the luminaire will automatically compare the values ​​of the data buffers of the DIN1 and DIN2 ports; S503: Determine if the values ​​of the data buffers for ports DIN1 and DIN2 are the same; S504: If the values ​​of the data buffers of DIN1 and DIN2 ports are the same, the luminaire will start to receive and display the grayscale values ​​contained in the grayscale data DATA2 normally. S505: If the values ​​of the data buffers of DIN1 and DIN2 ports are different, it is determined that the state of the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal state grayscale is displayed after DATA2 is received. S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

2. A method for detecting luminaires that resume operation after a breakpoint, applied to luminaires that resume operation after a breakpoint, characterized in that, The breakpoint resume lighting fixture includes a controller and multiple parallel lighting fixtures. Each lighting fixture includes a VIN, GND, DIN1 port, DIN2 port, and DOUT port. The controller includes a VIN, VOUT, GND, DOUT1 port, and DOUT2 port. The VIN of each lighting fixture is connected to the VOUT of the controller, and the GND of each lighting fixture is connected to the GND of the controller. The DOUT1 port of the controller is connected to the DIN1 port of the first lighting fixture, and the DOUT2 port of the controller is connected to the DIN2 port of the first lighting fixture. The DIN1 port of the preceding lighting fixture is connected to the DIN2 port of the following lighting fixture, and the DOUT port of the preceding lighting fixture is connected to the DIN1 port of the following lighting fixture. The breakpoint resume lighting fixture detection method includes the following steps: Step S1: The power supply VOUT port is connected to the VIN of the controller, and the output voltage provides power to each lamp. Step S2: The controller DOUT2 port sends the first frame of grayscale data DATA1 and the second frame of grayscale data DATA2; Step S3: The controller DOUT1 port sends the same grayscale data DATA1 and grayscale data DATA2 as the DOUT2 port; Step S4: The lamp takes the first frame of grayscale data DATA1 received upon power-on as test data; Step S5: The luminaire determines whether there is a short circuit between DIN1 port and DIN2 port by comparing the time difference between the data received by DIN1 port and DIN2 port. The time difference is the difference between the time when DIN1 port receives data and the time when DIN2 port receives data. Step S5 includes: S507: First lamp DIN2 port receives test data DATA1; S508: The first lamp's DIN1 port receives test data DATA1; S509: In subsequent lighting fixtures, the DIN2 port is connected to the DIN1 port of the preceding lighting fixture. Therefore, under normal conditions, the time for the DIN1 port to start receiving test data DATA1 should be longer than the time for the DIN2 port to start receiving test data DATA1. S510: When the DIN1 port and DIN2 port of the luminaire are short-circuited, the DIN1 port and DIN2 port of the luminaire will receive test data DATA1 at the same time; S511: When it is detected that the DIN1 port and the first lamp DIN2 port are receiving test data DATA1 at the same time, it is determined that the lamp port is abnormal. The received second frame of grayscale data DATA2 is regarded as invalid, and the internally set abnormal status grayscale is displayed after DATA2 is received. S506: The lamps will resume normal display after receiving the third frame of grayscale data DATA3.

3. A system for detecting luminaires that have resumed operation after a breakpoint, using the method for detecting luminaires that have resumed operation after a breakpoint as described in any one of claims 1-2, characterized in that, It includes a controller, multiple lamps, and a power supply. The power supply provides power to the controller, which internally uses a switch or adjusts the input power voltage to power the multiple lamps.

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