CN116761300B - Abnormality detection method based on multi-signal analysis and application of abnormality detection method in lighting system - Google Patents
Abnormality detection method based on multi-signal analysis and application of abnormality detection method in lighting system Download PDFInfo
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The application discloses an anomaly detection method based on multi-signal analysis and an application thereof in a lighting system, wherein the detection method comprises the following steps: obtaining a plurality of input signals based on the plurality of signal input ports; setting a detection sequence of a plurality of input signals; detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals; and judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result. By adopting the scheme, the problems that the detection program is complex and not concise due to the fact that the detection circuit is arranged for each signal input port in the prior art are avoided, the detection program is saved on the premise that the detection result is ensured by detecting each signal input port in turn, the detection circuit is not required to be arranged for each port, the repeatability is reduced, and the detection efficiency is improved.
Description
Technical Field
The application relates to a signal detection method, in particular to an abnormality detection method based on multi-signal analysis and application thereof in an illumination system.
Background
LEDs are considered to have a broad application prospect since their birth. Under the background of the reduction of the production cost of the LEDs and the continuous enhancement of the energy crisis consciousness and the environmental protection consciousness of people caused by the progress of the integrated circuit manufacturing process, the LED illumination is gradually and widely applied, and is hopeful to replace the incandescent lamp illumination and the fluorescent lamp illumination in a large range. However, the LED lighting device needs to cooperate with a dedicated driving chip to maintain the proper operation of the LED lighting system.
For an LED lighting system, in order to ensure normal operation of an LED load, a detection circuit is generally provided, for example: the publication number is: in the patent application CN111817584a, an ac/dc detection circuit is designed, based on a sampling circuit including a rectifying circuit, a reference voltage circuit and a comparing circuit, the input state of the power supply is judged, and the type of power supply protection is confirmed by the input state, so that the input protection of the power supply is realized; specifically, the power supply VCC supplies power to the sampling circuit and provides power supply current for the reference voltage circuit, when the input voltage is influenced by the surrounding environment to change, the voltage is rectified to the first input end of the comparison circuit through the rectification circuit, and is correspondingly converted by comparison with the reference voltage and then transmitted to the power supply main control chip, so that the internal control of the power supply is realized; based on the application, the main control chip of the power supply can be controlled to realize power supply dormancy or work, and the application is simple, commonly used in devices and low in cost.
However, in an actual application scenario, there may be the following cases: one driving chip controls a group of LEDs, each group of LEDs includes a plurality of LEDs, and each driving chip corresponds to a signal input port, how to detect each input signal in the whole lighting system is a problem to be solved, and the patent application of CN111817584a only designs a detection circuit for one input port, but cannot detect a scene of a plurality of input ports more conveniently, under such a scene, if detection of an input signal is to be performed, a mode that each input port is generally possible to be adopted is provided with a detection circuit, and then each input port is detected, however, the existing scheme needs to have a complex detection flow, needs to connect a detection circuit for each input port, and has complex and cumbersome circuit design, and repeated work exists.
Disclosure of Invention
The present application provides an anomaly detection method based on multi-signal analysis and an application thereof in an illumination system, so as to solve the above-mentioned problems in the prior art.
The application provides an anomaly detection method based on multi-signal analysis, which comprises the following steps:
s100, obtaining a plurality of input signals based on a plurality of signal input ports;
s200, setting a detection sequence of a plurality of input signals;
s300, detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals;
s400, judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result.
Preferably, the S100 obtains a plurality of input signals based on a plurality of signal input ports, including:
s101, each signal input port controls a corresponding LED lighting module through a corresponding driving chip;
s102, signal sampling is carried out on each signal input port through a sampling module, and input signals of the corresponding signal input ports are obtained;
and S103, marking the input port obtained for each signal input port, and correspondingly, storing the input signals, the marks, the corresponding driving chip and the LED lighting module in the same marking mode.
Preferably, the step S200 sets a detection order of the plurality of input signals, including:
s201, respectively setting a first weight value for a plurality of signal input ports and respectively setting a second weight value for each LED lighting module;
s202, taking each signal input port and a corresponding LED lighting module as a group, and calculating the sum of weight values of each group, wherein the calculation method is to add a first weight value to a second weight value;
s203, sorting all groups according to the weight sum from high to low to form sorting labels;
s204, corresponding the sequencing marks to corresponding signal input ports, and setting the detection sequence by the signal input ports according to the sequence of the sequencing marks.
Preferably, the step S300 is configured to detect a plurality of input signals according to a set detection sequence, and obtain all types of input signals, including:
s301, obtaining an input signal;
s302, inputting an input signal into a detection circuit, and detecting alternating current, direct current and no-input signals based on the detection circuit;
s303, determining an output signal of a detection circuit;
s304, determining the type of an input signal according to the output signal, wherein the input signal comprises: a direct current signal, an alternating current signal or no input signal.
Preferably, the step S400 of determining whether there is an abnormal signal in the input signals based on the types of all the input signals in the detection result includes:
s401, when the input signal is determined to be a direct current signal, determining whether the LED lighting module at the current time is in an emergency state or not based on a direct current signal database, if the LED lighting module is in the emergency state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the emergency state, the input signal is an abnormal signal at the moment;
s402, when the input signal is determined to be an alternating current signal, determining whether the LED lighting module at the current time is in a normal working state or not based on an alternating current signal database, if the LED lighting module is in the normal working state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the normal working state, the input signal is an abnormal signal at the moment;
and S403, when the input signal is determined to be no input signal, determining whether the LED lighting module at the current time is in an off state or not based on the no input signal database, if the LED lighting module is in the off state, the input signal is a normal signal, and if the LED lighting module is not in the off state, the input signal is an abnormal signal.
Preferably, the step S401 includes constructing a dc signal database; the method specifically comprises the following steps:
s4011, determining a time period when all LED illumination modules are in an emergency state according to an application scene;
s4012, the time period of each LED lighting module in the emergency state is correspondingly recorded and corresponds to the corresponding signal input port, and the signal input port is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
Preferably, the step S402 includes constructing an ac signal database; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in a normal working state according to an application scene;
s4022, the time period of each LED lighting module in the normal working state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
Preferably, the step S403 includes constructing a database without input signals; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in an off state according to an application scene;
s4022, the time period of each LED lighting module in the off state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
Preferably, the step S400 further includes:
if the type of the input signal is an alternating current signal, obtaining a voltage fluctuation range of the input signal in a set time period;
judging whether the voltage fluctuation range belongs to the regulation and control range of the driving chip; if yes, the input signal is a normal signal, and if not, the input signal is an abnormal signal.
The application also provides an anomaly detection method based on multi-signal analysis, which is applied to a lighting system and comprises the following steps: applying the anomaly detection method based on multi-signal analysis to a lighting system;
and determining whether the lighting system is normally operated according to an abnormality detection method based on multi-signal analysis, wherein whether the input signal is an abnormality signal or not is determined.
Compared with the prior art, the application has the following advantages:
the application provides an anomaly detection method based on multi-signal analysis and application thereof in a lighting system, wherein the detection method comprises the following steps: obtaining a plurality of input signals based on the plurality of signal input ports; setting a detection sequence of a plurality of input signals; detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals; and judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result. The scheme provided by the embodiment avoids the problems that the detection program is complex and not concise caused by setting the detection circuit for each signal input port in the prior art, and the scheme provided by the embodiment can detect each signal input port in turn, so that the detection program is saved on the premise of ensuring the detection result, the detection circuit is not required to be set for each port, the repeatability is reduced, and the detection efficiency is improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the application is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, serve to explain the application. In the drawings:
FIG. 1 is a flow chart of an anomaly detection method based on multi-signal analysis in an embodiment of the application;
FIG. 2 is a flow chart of a method for obtaining a plurality of input signals based on a plurality of signal input ports according to an embodiment of the application;
fig. 3 is a flowchart of a method for setting a detection sequence of a plurality of input signals according to an embodiment of the present application.
Detailed Description
The preferred embodiments of the present application will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present application only, and are not intended to limit the present application.
The embodiment of the application provides an anomaly detection method based on multi-signal analysis, referring to fig. 1, the method comprises the following steps:
s100, obtaining a plurality of input signals based on a plurality of signal input ports;
s200, setting a detection sequence of a plurality of input signals;
s300, detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals;
s400, judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that a plurality of input signals are obtained based on a plurality of signal input ports; setting a detection sequence of a plurality of input signals; detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals; and judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result.
Corresponding detection sequences are set for all the signal input ports, all the signal input ports are connected with the same detection circuit, and each signal input port is detected in turn through the set detection sequences so as to judge whether the input signal is abnormal or not. Because the input signal of each signal input port is continuous, each input port is detected at intervals, and the final detection result is not influenced.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to obtain a plurality of input signals based on a plurality of signal input ports; setting a detection sequence of a plurality of input signals; detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals; and judging whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result. The scheme provided by the embodiment avoids the problems that the detection program is complex and not concise caused by setting the detection circuit for each signal input port in the prior art, and the scheme provided by the embodiment can detect each signal input port in turn, so that the detection program is saved on the premise of ensuring the detection result, the detection circuit is not required to be set for each port, the repeatability is reduced, and the detection efficiency is improved.
In another embodiment, referring to fig. 2, the step S100 of obtaining a plurality of input signals based on a plurality of signal input ports includes:
s101, each signal input port controls a corresponding LED lighting module through a corresponding driving chip;
s102, signal sampling is carried out on each signal input port through a sampling module, and input signals of the corresponding signal input ports are obtained;
and S103, marking the input port obtained for each signal input port, and correspondingly, storing the input signals, the marks, the corresponding driving chip and the LED lighting module in the same marking mode.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the obtaining a plurality of input signals based on a plurality of signal input ports includes: each signal input port controls the corresponding LED lighting module through the corresponding driving chip; the method comprises the steps that signal sampling is conducted on each signal input port through a sampling module, and input signals of the corresponding signal input ports are obtained; and marking the input port obtained for each signal input port, and correspondingly, storing the input signals, the marks, the corresponding driving chip and the LED lighting module in the same marking mode.
The beneficial effects of the technical scheme are as follows: the method for obtaining a plurality of input signals based on a plurality of signal input ports according to the scheme provided by the embodiment includes: each signal input port controls the corresponding LED lighting module through the corresponding driving chip; the method comprises the steps that signal sampling is conducted on each signal input port through a sampling module, and input signals of the corresponding signal input ports are obtained; and marking the input port obtained for each signal input port, and correspondingly, storing the input signals, the marks, the corresponding driving chip and the LED lighting module in the same marking mode. The method is convenient for the subsequent construction and detection sequence and the detection basis judgment in the detection process by marking each signal input port, the corresponding driving chip and the corresponding LED lighting module, and the detection result can correspond to the mark and find the signal input port corresponding to the abnormal condition.
In another embodiment, referring to fig. 3, the step S200 of setting a detection sequence of a plurality of input signals includes:
s201, respectively setting a first weight value for a plurality of signal input ports and respectively setting a second weight value for each LED lighting module;
s202, taking each signal input port and a corresponding LED lighting module as a group, and calculating the sum of weight values of each group, wherein the calculation method is to add a first weight value to a second weight value;
s203, sorting all groups according to the weight sum from high to low to form sorting labels;
s204, corresponding the sequencing marks to corresponding signal input ports, and setting the detection sequence by the signal input ports according to the sequence of the sequencing marks.
The working principle of the technical scheme is as follows: the scheme adopted in this embodiment is that the setting of the detection sequence of the plurality of input signals includes: respectively setting a first weight value for a plurality of signal input ports and respectively setting a second weight value for each LED lighting module; taking each signal input port and the corresponding LED lighting module as a group, and calculating the sum of weight values of each group, wherein the calculation method is to add a first weight value to a second weight value; sequencing all groups according to the weight sum and the sequence from high to low to form sequencing marks; the sequencing labels are correspondingly provided with corresponding signal input ports, and the signal input ports set the detection sequence according to the sequence of the sequencing labels.
The beneficial effects of the technical scheme are as follows: the method for setting the detection sequence of the plurality of input signals according to the scheme provided by the embodiment comprises the following steps: respectively setting a first weight value for a plurality of signal input ports and respectively setting a second weight value for each LED lighting module; taking each signal input port and the corresponding LED lighting module as a group, and calculating the sum of weight values of each group, wherein the calculation method is to add a first weight value to a second weight value; sequencing all groups according to the weight sum and the sequence from high to low to form sequencing marks; the sequencing labels are correspondingly provided with corresponding signal input ports, and the signal input ports set the detection sequence according to the sequence of the sequencing labels. The method comprises the steps of determining which group is high in duty ratio or important in a lighting system according to a set weight value mode, and preferentially detecting the group which is high in duty ratio or important, so that a first weight value is respectively set for a plurality of signal input ports, a second weight value is respectively set for each LED lighting module, the weight values of the group are formed based on the sum of the first weight value and the second weight value, the weight values are used as sequencing basis, a more scientific calculation mode is simple, the effect of quick sequencing can be achieved, and the method can be more fit with actual use scenes.
In another embodiment, the step S300 of detecting a plurality of input signals according to a set detection sequence to obtain all types of input signals includes:
s301, obtaining an input signal;
s302, inputting an input signal into a detection circuit, and detecting alternating current, direct current and no-input signals based on the detection circuit;
s303, determining an output signal of a detection circuit;
s304, determining the type of an input signal according to the output signal, wherein the input signal comprises: a direct current signal, an alternating current signal or no input signal.
The working principle of the technical scheme is as follows: the scheme adopted in this embodiment is to detect a plurality of input signals according to a set detection sequence, and obtain types of all input signals, including: obtaining an input signal; inputting an input signal to a detection circuit, and detecting alternating current, direct current and no-input signals based on the detection circuit; determining an output signal of the detection circuit; determining a type of input signal from an output signal, the input signal comprising: a direct current signal, an alternating current signal or no input signal.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to detect a plurality of input signals according to a set detection sequence, and all types of the input signals are obtained, including: obtaining an input signal; inputting an input signal to a detection circuit, and detecting alternating current, direct current and no-input signals based on the detection circuit; determining an output signal of the detection circuit; determining a type of input signal from an output signal, the input signal comprising: a direct current signal, an alternating current signal or no input signal.
When the input voltage is direct current, the main power enters an emergency state according to the instruction of the control module, and at the moment, corresponding emergency current can be output according to the requirement to drive the LED load, and often the emergency current is smaller than the current value in the alternating current mode; when the input voltage is closed (no AC power supply or DC power supply), the system enters a shutdown mode, corresponding shutdown operations (such as slow shutdown or quick shutdown) can be performed according to the needs, afterglow is prevented, and relevant data storage (such as dimming scenes, power addresses and the like) can be performed; when the input signal is alternating current, the system enters an alternating current mode, and the controller can send out corresponding instructions according to the requirements, so that the LED load outputs corresponding light effects, such as starting soft start.
In another embodiment, the step S400 of determining whether there is an abnormal signal in the input signals based on the types of all the input signals in the detection result includes:
s401, when the input signal is determined to be a direct current signal, determining whether the LED lighting module at the current time is in an emergency state or not based on a direct current signal database, if the LED lighting module is in the emergency state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the emergency state, the input signal is an abnormal signal at the moment;
s402, when the input signal is determined to be an alternating current signal, determining whether the LED lighting module at the current time is in a normal working state or not based on an alternating current signal database, if the LED lighting module is in the normal working state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the normal working state, the input signal is an abnormal signal at the moment;
and S403, when the input signal is determined to be no input signal, determining whether the LED lighting module at the current time is in an off state or not based on the no input signal database, if the LED lighting module is in the off state, the input signal is a normal signal, and if the LED lighting module is not in the off state, the input signal is an abnormal signal.
The working principle of the technical scheme is as follows: the scheme adopted in this embodiment is to judge whether there is an abnormal signal in the input signals based on the types of all the input signals in the detection result, including: when the input signal is determined to be a direct current signal, determining whether the LED lighting module at the current time is in an emergency state or not based on a direct current signal database, if the LED lighting module is in the emergency state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the emergency state, the input signal is an abnormal signal at the moment; when the input signal is determined to be an alternating current signal, determining whether the LED lighting module at the current time is in a normal working state or not based on an alternating current signal database, if the LED lighting module is in the normal working state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the normal working state, the input signal is an abnormal signal at the moment; when the input signal is determined to be no input signal, determining whether the LED lighting module at the current time is in an off state or not based on the no-input-signal database, if the LED lighting module is in the off state, the input signal is a normal signal, and if the LED lighting module is not in the off state, the input signal is an abnormal signal.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to judge whether the input signals have abnormal signals or not based on the types of all the input signals in the detection result, and the scheme comprises the following steps: when the input signal is determined to be a direct current signal, determining whether the LED lighting module at the current time is in an emergency state or not based on a direct current signal database, if the LED lighting module is in the emergency state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the emergency state, the input signal is an abnormal signal at the moment; when the input signal is determined to be an alternating current signal, determining whether the LED lighting module at the current time is in a normal working state or not based on an alternating current signal database, if the LED lighting module is in the normal working state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the normal working state, the input signal is an abnormal signal at the moment; when the input signal is determined to be no input signal, determining whether the LED lighting module at the current time is in an off state or not based on the no-input-signal database, if the LED lighting module is in the off state, the input signal is a normal signal, and if the LED lighting module is not in the off state, the input signal is an abnormal signal. In the whole lighting system, the state of each LED lighting module in a certain time period is preset, and if the input signal cannot be matched with the preset state in a certain time period, the abnormal problem of the input signal is indicated.
In another embodiment, the step S401 includes building a dc signal database; the method specifically comprises the following steps:
s4011, determining a time period when all LED illumination modules are in an emergency state according to an application scene;
s4012, the time period of each LED lighting module in the emergency state is correspondingly recorded and corresponds to the corresponding signal input port, and the signal input port is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that a direct current signal database is constructed; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in an emergency state according to an application scene; and correspondingly recording the time period of each LED lighting module in the emergency state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to construct a direct current signal database; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in an emergency state according to an application scene; and correspondingly recording the time period of each LED lighting module in the emergency state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not. The direct current signal database is constructed to conveniently judge whether abnormal conditions exist for the input signals of different signal input ports, if the current LED lighting module is determined to be in an emergency state according to the constructed direct current signal database, but when the type of the input signal is detected to be no input signal, the emergency state of the no input signal and the direct current signal database is not matched, so that the current input signal is not in accordance with the preset specification, namely, the abnormal condition exists, and if the type of the detected input signal is the direct current signal, the current input signal is not abnormal if the emergency state of the direct current signal and the direct current signal database is matched.
In another embodiment, the step S402 includes building an ac signal database; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in a normal working state according to an application scene;
s4022, the time period of each LED lighting module in the normal working state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is to construct an alternating current signal database; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in a normal working state according to an application scene; and correspondingly recording the time period of each LED lighting module in the normal working state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to construct an alternating current signal database; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in a normal working state according to an application scene; and correspondingly recording the time period of each LED lighting module in the normal working state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not. The method comprises the steps of conveniently judging whether abnormal conditions exist for input signals of different signal input ports by constructing an alternating current signal database, if the current LED lighting module is determined to be in a normal working state according to the constructed alternating current signal database, but when the type of the input signal is detected to be a direct current signal, the normal working state of the direct current signal and the alternating current signal database is not matched, so that the current input signal is not in accordance with the preset specification, namely, the abnormal condition exists, and if the type of the detected input signal is the alternating current signal, the normal working state of the alternating current signal and the alternating current signal database is matched, and the current input signal is not abnormal.
In another embodiment, the step S403 includes building a database without input signals; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in an off state according to an application scene;
s4022, the time period of each LED lighting module in the off state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is to construct a database without input signals; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in an off state according to an application scene; and correspondingly recording the time period of each LED lighting module in the off state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not.
The beneficial effects of the technical scheme are as follows: the scheme provided by the embodiment is adopted to construct a database without input signals; the method specifically comprises the following steps: determining a time period when all the LED illumination modules are in an off state according to an application scene; and correspondingly recording the time period of each LED lighting module in the off state, and correspondingly judging whether the input signal of the signal input port corresponds to the state of the LED lighting module or not. The method comprises the steps of conveniently judging whether abnormal conditions exist for input signals of different signal input ports by constructing an input-signal-free database, if the current LED lighting module is determined to be in an off state according to the constructed input-signal-free database, but when the type of the input signal is detected to be an alternating current signal, the off state of the alternating current signal and the input-signal-free database is not matched, so that the current input signal is not in accordance with the preset rule, namely, the abnormal condition exists, and if the detected input signal type is the input-signal-free signal, the current input signal is not abnormal if the input-signal-free signal is matched with the off state of the input-signal-free database.
In another embodiment, the step S400 further includes:
if the type of the input signal is an alternating current signal, obtaining a voltage fluctuation range of the input signal in a set time period;
judging whether the voltage fluctuation range belongs to the regulation and control range of the driving chip; if yes, the input signal is a normal signal, and if not, the input signal is an abnormal signal.
The working principle of the technical scheme is as follows: the scheme adopted in this embodiment is that the step S400 further includes:
if the type of the input signal is an alternating current signal, obtaining a voltage fluctuation range of the input signal in a set time period;
judging whether the voltage fluctuation range belongs to the regulation and control range of the driving chip; if yes, the input signal is a normal signal, and if not, the input signal is an abnormal signal.
The beneficial effects of the technical scheme are as follows: the following steps of S400 further include:
if the type of the input signal is an alternating current signal, obtaining a voltage fluctuation range of the input signal in a set time period;
judging whether the voltage fluctuation range belongs to the regulation and control range of the driving chip; if yes, the input signal is a normal signal, and if not, the input signal is an abnormal signal. Further, abnormality judgment is carried out on the specific condition that the alternating current signal is taken as the input signal, if the voltage fluctuation range of the input signal is not within the regulation and control range of the driving chip, the fact that the input signal cannot provide enough voltage for the driving chip is indicated, and the driving chip cannot realize regulation and control on the LED lighting module.
In another embodiment, the present embodiment further provides an anomaly detection method based on multiple signal analysis applied in an illumination system, including: the abnormality detection method based on multi-signal analysis is applied to an illumination system;
and determining whether the lighting system is normally operated according to an abnormality detection method based on multi-signal analysis, wherein whether the input signal is an abnormality signal or not is determined.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the abnormality detection method based on multi-signal analysis is applied to a lighting system and comprises the following steps: the abnormality detection method based on multi-signal analysis is applied to an illumination system; and determining whether the lighting system is normally operated according to an abnormality detection method based on multi-signal analysis, wherein whether the input signal is an abnormality signal or not is determined.
The beneficial effects of the technical scheme are as follows: the abnormality detection method based on multi-signal analysis provided by the embodiment is applied to a lighting system, and comprises the following steps: the abnormality detection method based on multi-signal analysis is applied to an illumination system; and determining whether the lighting system is normally operated according to an abnormality detection method based on multi-signal analysis, wherein whether the input signal is an abnormality signal or not is determined.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The abnormality detection method based on the multi-signal analysis is characterized by comprising the following steps:
s100, obtaining a plurality of input signals based on a plurality of signal input ports;
s200, setting a detection sequence of a plurality of input signals;
s300, detecting a plurality of input signals according to a set detection sequence to obtain types of all the input signals;
s400, judging whether an abnormal signal exists in the input signals or not based on the types of all the input signals in the detection result;
the S100 obtains a plurality of input signals based on a plurality of signal input ports, including:
s101, each signal input port controls a corresponding LED lighting module through a corresponding driving chip;
s102, signal sampling is carried out on each signal input port through a sampling module, and input signals of the corresponding signal input ports are obtained;
s103, marking the input signals obtained from each signal input port, and correspondingly, storing the input signals, the corresponding driving chip and the LED lighting module in the same marking mode;
the step S200 of setting a detection sequence of a plurality of input signals includes:
s201, respectively setting a first weight value for a plurality of signal input ports and respectively setting a second weight value for each LED lighting module;
s202, taking each signal input port and a corresponding LED lighting module as a group, and calculating the sum of weight values of each group, wherein the calculation method is to add a first weight value to a second weight value;
s203, sorting all groups according to the weight sum from high to low to form sorting labels;
s204, corresponding the sequencing marks to corresponding signal input ports, and setting the detection sequence by the signal input ports according to the sequence of the sequencing marks.
2. The abnormality detection method based on multi-signal analysis according to claim 1, wherein the step S300 of detecting a plurality of input signals in a set detection order to obtain all types of input signals includes:
s301, obtaining an input signal;
s302, inputting an input signal into a detection circuit, and detecting alternating current, direct current and no-input signals based on the detection circuit;
s303, determining an output signal of a detection circuit;
s304, determining the type of an input signal according to the output signal, wherein the input signal comprises: a direct current signal, an alternating current signal or no input signal.
3. The abnormality detection method based on multi-signal analysis according to claim 2, wherein the step S400 of judging whether there is an abnormality signal in the input signals based on the types of all the input signals in the detection result includes:
s401, when the input signal is determined to be a direct current signal, determining whether the LED lighting module at the current time is in an emergency state or not based on a direct current signal database, if the LED lighting module is in the emergency state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the emergency state, the input signal is an abnormal signal at the moment;
s402, when the input signal is determined to be an alternating current signal, determining whether the LED lighting module at the current time is in a normal working state or not based on an alternating current signal database, if the LED lighting module is in the normal working state, the input signal is a normal signal at the moment, and if the LED lighting module is not in the normal working state, the input signal is an abnormal signal at the moment;
and S403, when the input signal is determined to be no input signal, determining whether the LED lighting module at the current time is in an off state or not based on the no input signal database, if the LED lighting module is in the off state, the input signal is a normal signal, and if the LED lighting module is not in the off state, the input signal is an abnormal signal.
4. The abnormality detection method based on multi-signal analysis according to claim 3, wherein S401 includes constructing a direct current signal database; the method specifically comprises the following steps:
s4011, determining a time period when all LED illumination modules are in an emergency state according to an application scene;
s4012, the time period of each LED lighting module in the emergency state is correspondingly recorded and corresponds to the corresponding signal input port, and the signal input port is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
5. The abnormality detection method based on multi-signal analysis according to claim 3, wherein,
the S402 comprises constructing an alternating current signal database; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in a normal working state according to an application scene;
s4022, the time period of each LED lighting module in the normal working state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
6. The abnormality detection method based on multi-signal analysis according to claim 3, wherein S403 includes constructing an input-signal-free database; the method specifically comprises the following steps:
s4021, determining a time period when all LED illumination modules are in an off state according to an application scene;
s4022, the time period of each LED lighting module in the off state is correspondingly recorded, and the time period corresponds to the corresponding signal input port, and the time period is used for judging whether the input signal of the signal input port corresponds to the state of the LED lighting module.
7. The abnormality detection method based on multi-signal analysis according to claim 1, wherein the step S400 further includes:
if the type of the input signal is an alternating current signal, obtaining a voltage fluctuation range of the input signal in a set time period;
judging whether the voltage fluctuation range belongs to the regulation and control range of the driving chip; if yes, the input signal is a normal signal, and if not, the input signal is an abnormal signal.
8. An application method of an anomaly detection method based on multi-signal analysis in a lighting system is characterized by comprising the following steps: applying the abnormality detection method based on multi-signal analysis according to any one of claims 1-7 in a lighting system;
and determining whether the lighting system is normally operated according to an abnormality detection method based on multi-signal analysis, wherein whether the input signal is an abnormality signal or not is determined.
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