CN112822824A - Lighting device control circuit, control method and lighting device - Google Patents
Lighting device control circuit, control method and lighting device Download PDFInfo
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Abstract
The invention provides a control circuit and a control method of a lighting device and the lighting device, which are applied to the technical field of intelligent traffic, the circuit is provided with a first light collecting device and a sound collecting device, the first light collecting device is used for collecting the light brightness, the sound collecting device is used for collecting the environmental sound, controlling the second switch to be closed under the condition that the light brightness meets a first preset condition and the environmental sound meets a second preset condition, the drive circuit of the lighting device is powered on and drives the light source in the lighting device to work, and through the control circuit of the lighting device provided by the invention, environmental light brightness and environmental sound can be considered comprehensively, compared with a control mode of controlling the operation of the lighting device according to fixed time in the prior art, the lighting device can adapt to environmental changes more flexibly, the lighting device can be controlled according to environmental changes, and then the lighting effect is improved.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a lighting device control circuit, a control method and a lighting device.
Background
In actual life, lighting devices are installed on two sides of most roads and used for providing lighting for a driver at night or under the condition that light of other environments is insufficient, visibility of a driving environment is improved, and driving safety is improved.
In order to save the power consumed by the lighting device, the on-time and the off-time of the lighting device are generally set, and when the on-time is reached, the lighting device is controlled to work, and when the off-time is reached, the lighting device is controlled to be turned off.
However, controlling the lighting device according to the fixed on-time and off-time is difficult to meet the requirement of environmental change in practical application. For example, in rainy weather, the environmental visibility is low, or in autumn and winter, the sunshine duration in the daytime is short, and if the lighting device is still controlled according to the set starting time and the set closing time, it is obviously difficult to provide effective lighting, and even reduce the driving safety.
Disclosure of Invention
The invention provides a lighting device control circuit, a control method and a lighting device, which are used for controlling the lighting device according to environmental changes and improving the lighting effect.
In order to achieve the purpose, the technical scheme provided by the application is as follows:
in a first aspect, the present invention provides a lighting device control circuit comprising: a first light collection device, a sound collection device, a first switch, a second switch, and a controller,
the power supply input end of the first light ray acquisition device is connected with a first power supply, and the signal output end of the first light ray acquisition device is connected with the first signal acquisition end of the controller;
the input end of the first switch is connected with a second power supply, the output end of the first switch is connected with the power supply input end of the sound acquisition device, and the control end of the first switch is connected with the first control signal output end of the controller;
the signal output end of the sound acquisition device is connected with the second signal acquisition end of the controller;
the input end of the second switch is connected with a third power supply, the output end of the second switch is connected with the driving end of a driving circuit of the lighting device, and the control end of the second switch is connected with a second control signal output end of the controller;
the controller is used for controlling the second switch to be closed under the condition that the light brightness fed back by the first light collecting device meets a first preset condition and the environment sound fed back by the sound collecting device meets a second preset condition, so that the driving circuit is powered on and the light source is driven to work.
Optionally, the lighting device control circuit provided by the first aspect of the present invention further includes: a third switch and a second light collection device, wherein,
the input end of the third switch is connected with a fourth power supply, the output end of the third switch is connected with the power supply input end of the second light collecting device, and the control end of the third switch is connected with the third control signal output end of the controller;
and the signal output end of the second light ray acquisition device is connected with the third signal acquisition end of the controller.
Optionally, the first switch, the second switch and the third switch are switches with the same circuit structure, and the switches include: a first switch tube, a second switch tube and a first resistor, wherein,
one end of the first resistor is connected with a corresponding power supply, and the other end of the first resistor is grounded through the first switch tube;
the control end of the first switch tube is used as the control end of the corresponding switch;
the input end of the second switch tube is used as the input end of the corresponding switch, the output end of the second switch tube is used as the output end of the corresponding switch, and the control end of the second switch tube is connected with the series connection point of the first resistor and the first switch tube.
Optionally, the switch further includes: an input filter circuit comprising a second resistor and a first capacitor, wherein,
one end of the second resistor is used as a control end of the corresponding switch, and the other end of the second resistor is grounded through the first capacitor;
and the control end of the first switching tube is connected with the series connection point of the second resistor and the first capacitor.
Optionally, the switch further includes: and a filter capacitor is output, wherein,
one end of the output filter capacitor is connected with the output end of the corresponding switch, and the other end of the output filter capacitor is grounded.
Optionally, the switch further includes: a slow start circuit including a third resistor and a second capacitor, wherein,
one end of the second capacitor is connected with the input end of the corresponding switch, and the other end of the second capacitor is connected with the series connection point of the first switch tube and the first resistor through the third resistor;
and the control end of the second switching tube is connected with the series connection point of the third resistor and the second capacitor.
In a second aspect, the present invention provides a lighting device control method, applied to a controller in the lighting device control circuit according to any one of the first aspect of the present invention, the method including:
acquiring light brightness;
if the light brightness meets a first preset condition, controlling a first switch in a control circuit of the lighting device to be closed, and acquiring environmental sound;
and if the ambient sound meets a second preset condition, controlling a second switch in the lighting device control circuit to be closed so as to electrify a driving circuit of the lighting device and drive the light source to work.
Optionally, if the lighting device control circuit includes a third switch and a second light collecting device, the acquiring the light brightness includes:
acquiring first light brightness fed back by a first light acquisition device in the lighting device control circuit;
and if the first light brightness is smaller than the first light brightness threshold value, controlling a third switch in the lighting device control circuit to be closed, and acquiring second light brightness fed back by a second light acquisition device in the lighting device control circuit.
Optionally, if the ambient sound satisfies a second preset condition, controlling a second switch in the lighting device control circuit to be turned on includes:
obtaining second light brightness fed back by the second light collecting device again;
if the second light brightness obtained by re-obtaining is larger than the second light brightness threshold value, re-obtaining the environmental sound fed back by the sound collection device;
and if the obtained environmental sound is acquired again and is larger than the preset sound threshold, controlling a second switch in the lighting device control circuit to be closed.
In a third aspect, the present invention provides a lighting device comprising: a light source, a driving circuit, and a lighting device control circuit according to any one of the first aspect of the present invention,
the light source is electrically connected with the driving circuit and is used for lighting under the driving of the driving circuit;
and the driving end of the driving circuit is connected with the control end of a second switch in the lighting device control circuit.
The lighting device control circuit provided by the invention is provided with the first light collecting device and the sound collecting device, the light brightness is collected through the first light collecting device, the environment sound is collected through the sound collecting device, and the second switch is controlled to be closed under the condition that the light brightness meets a first preset condition and the environment sound meets a second preset condition, so that the driving circuit of the lighting device is powered on and drives the light source in the lighting device to work.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a circuit topology diagram of a lighting device control circuit according to an embodiment of the present invention;
fig. 2 is a circuit topology diagram of another lighting device control circuit provided by the embodiment of the present invention;
fig. 3 is a flowchart of a control method of a lighting device according to an embodiment of the present invention;
fig. 4 is a flowchart of another lighting device control method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Optionally, referring to fig. 1, fig. 1 is a circuit topology diagram of a control circuit of a lighting device according to an embodiment of the present invention, where the control circuit of the lighting device according to the embodiment of the present invention may include: a first light collection device, a sound collection device, a first switch, a second switch, and a controller,
the power input end of the first light collecting device is connected with a first power supply Vcc1, and the signal output end of the first light collecting device is connected with a first signal collecting end I1 of the controller. When the controller is in use, the first light collection device is used for collecting light brightness, feeding back corresponding light brightness collection data to the controller, and providing basic data for the control process of the controller.
The input end of the first switch is connected with a second power supply Vcc2, the output end of the first switch is connected with the power supply input end of the sound collection device, and the control end of the first switch is connected with the first control signal output end 01 of the controller. The signal output end of the sound collection device is connected with a second signal collection end I2 of the controller. In use, the controller can output a control signal to the control end of the first switch according to a preset control signal output condition, so as to control the working state of the first switch and further control the working state of the sound collection device. Specifically, when the controller outputs a control signal to control the first switch to be switched on and off, the second power supply Vcc2 is communicated with the power supply input end of the sound collection device, the sound collection device starts to work after being powered on, starts to collect environmental sound, and feeds back the collected environmental sound to the controller through the second signal collection end I2 of the controller; correspondingly, when the controller outputs a control signal to control the first switch to be switched off, the second power supply Vcc2 is disconnected from the power supply input end of the sound collection device, and the sound collection device is powered off and stops working.
Optionally, the source of the environmental sound collected by the sound collection device may be different according to the environment in which the lighting device is used. For example, when the lighting device is used as a street lamp, the environmental sound collected by the sound collection device at least includes tire noise and whistling sound generated when a vehicle passes through the street lamp, and sound generated when other traffic participants such as pedestrians walk, bicycles, electric vehicles and the like pass through the street lamp. It can be imagined that when the sound collection device is used for collecting the sound of walking, bicycle, electric motor car, for improving the effect of sound collection, can directly set up the sound collection device in positions such as ground, light pole, roadside railing.
The specific type of the sound collection device may be implemented by using one or more microphones, and of course, other devices capable of implementing the sound collection function in the prior art are optional, and are not described herein again.
The input terminal of the second switch is connected to the third power supply Vcc3, the output terminal of the second switch is connected to the driving terminal of the driving circuit of the lighting device, and the control terminal of the second switch is connected to the second control signal output terminal 02 of the controller. The controller can control the working state of the second switch through the second control signal output end 02, and further control the on or off of the light source, namely control the working state of the lighting device. Specifically, the controller is under the condition that the light luminance that first light collection system fed back satisfies first preset condition, for example, light luminance is less than first light luminance threshold value, control first switch is closed, the work of sound collection system power consumption, to controller feedback environment sound, the condition of the environment sound that feeds back at the sound collection system satisfies the second preset condition, for example, environment sound is greater than preset sound threshold value, controller control second switch is closed, third power Vcc3 is linked together with lighting device's drive circuit, the power supply is gone up to the drive circuit and the light source work among the drive lighting device.
Correspondingly, under the condition that the light brightness fed back by the first light collecting device does not meet the first preset condition, the controller controls the first switch to be disconnected, the sound collecting device cannot be communicated with the second power supply Vcc2, the environmental sound cannot be collected, the controller controls the second switch to be disconnected, the driving circuit of the lighting device is powered off, and the light source of the lighting device works.
Or, under the condition that the light brightness fed back by the first light collecting device meets the first preset condition, the controller controls the first switch to be closed, the sound collecting device is powered on to work, and the environmental sound is fed back to the controller, if the environmental sound does not meet the second preset condition, the controller can also control the second switch to be disconnected, the driving circuit of the lighting device cannot be connected with the third power supply Vcc3, and the light source of the lighting device cannot work.
Optionally, the control signals output by the controller to the first switch and the second switch may be selected according to a specific switch circuit configuration.
It is conceivable that, in practical applications, the first light collecting device, the first switch, the second switch, and the power source connected to the lighting device driving circuit may be connected to the same power source, or may be connected to different power sources, as long as the above-mentioned working process can be implemented.
In summary, the lighting device control circuit provided in the embodiment of the present invention is provided with the first light collecting device and the sound collecting device, collects light brightness through the first light collecting device, and collects environmental sound through the sound collecting device, and controls the second switch to be turned on when the light brightness meets the first preset condition and the environmental sound meets the second preset condition, so that the driving circuit of the lighting device is powered on and drives the light source in the lighting device to operate.
Optionally, an optional circuit structure of the first switch and the second switch is further shown in the embodiment shown in fig. 1, as shown in fig. 1, the first switch and the second switch are switches with the same circuit structure, and the switches include: a first switch tube Q1, a second switch tube Q2 and a first resistor R1, wherein,
one end of the first resistor R1 is connected to the second power supply Vcc2, the other end of the first resistor R1 is grounded via the first switch tube Q1, the control end of the first switch tube Q1 is used as the control end of the corresponding switch (here, the first switch or the second switch), the input end of the second switch tube Q2 is used as the input end of the corresponding switch and connected to the second power supply Vcc2, the output end of the second switch tube Q2 is used as the output end of the corresponding switch, and the control end of the second switch tube Q2 is connected to the series connection point of the first resistor R1 and the first switch tube Q1.
Specifically, for the first switch, the control end of the first switch tube Q1 is connected to the first control signal output end 01 of the controller, and the output end of the second switch tube Q2 is connected to the power input end of the sound collection device; for the second switch, the control terminal of the first switch tube Q1 is connected to the second control signal output terminal 02 of the controller, and the output terminal of the second switch tube Q2 is connected to the driving terminal of the driving circuit of the lighting device.
For the circuit structure of the first switch and the second switch shown in fig. 1, when the control signal output by the controller is at a high level, the first switch Q1 is turned on, and then the second switch Q2 is controlled to be turned on, so that the power supply is communicated with the power supply input end of the driving circuit or the sound collection device; when the control signal output by the controller is at a low level, the first switch tube Q1 and the second switch tube Q2 are both in an off state.
Optionally, the first switch and the second switch shown in the embodiment shown in fig. 1 each further include: the input filter circuit comprises a second resistor R2 and a first capacitor C1.
In the case where the first switch and the second switch include input filter circuits, one end of the second resistor R2 is connected to a control signal output terminal of the controller as a control terminal of the corresponding switch, the other end of the second resistor R2 is grounded via the first capacitor C1, and the control terminal of the first switch Q1 is connected to a series connection point of the second resistor R2 and the first capacitor C1. By arranging the input filter circuit, the control signal output by the controller can be filtered, high-frequency noise possibly contained in the control signal is filtered, and the first switch and the second switch are prevented from misoperation.
Optionally, the first switch and the second switch shown in the embodiment shown in fig. 1 each further include: and a filter capacitor C2 is output. One end of the output filter capacitor C2 is connected to the output end of the corresponding switch, specifically, to the output end of the second switch Q2, and the other end of the output filter capacitor C2 is grounded. The output filter capacitor C2 can filter the control signals output by the first switch and the second switch, and avoid the false operation of the rear-stage circuit.
Optionally, the first switch and the second switch shown in the embodiment shown in fig. 1 each further include: the circuit is started slowly. Wherein, the slow start circuit comprises a third resistor R3 and a second capacitor C3, wherein,
in the case where the first and second switches comprise soft start circuits, one terminal of the second capacitor C3 is connected to the input terminal of the corresponding switch, the other terminal of the second capacitor C3 is connected to the series connection point of the first switch transistor Q1 and the first resistor R1 via the third resistor R3, and the control terminal of the second switch transistor Q2 is connected to the series connection point of the third resistor R3 and the second capacitor C3. That is, the third resistor R3 is connected in series between the control terminal of the second switch Q2 and the output terminal of the first switch Q1, one terminal of the second capacitor C3 is connected to the input terminal of the corresponding switch, and the other terminal of the second capacitor C3 is connected to the output terminal of the first switch Q1 (i.e., the series connection point of the output terminal of the first switch Q1 and the third resistor R3). By slowly starting the circuit, the second switching tube Q2 in the corresponding switch can be protected during the power-on process of the circuit.
In practical applications, particularly when the lighting device is used as a street lamp, there is an application scenario: at night or in rainy days, the light brightness collected by the first light sensor is smaller than a first light brightness threshold value, the controller controls the first switch to be closed, and the sound collection device enters a working state and starts to collect environmental sound. Under the condition that no vehicle passes through the street lamp, if the ambient noise is large, such as wind noise, the ambient sound acquired by the sound acquisition device is larger than a preset sound threshold value, the controller is caused to malfunction, the second switch is controlled to be closed, and then the lighting device is turned on.
In order to solve the above problem, an embodiment of the present invention further provides another lighting device control circuit, and optionally, referring to fig. 2, fig. 2 is a circuit topology diagram of another lighting device control circuit provided in an embodiment of the present invention, where the circuit topology structure further includes a third switch and a second light collecting device on the basis of the embodiment shown in fig. 1.
Specifically, the input end of the third switch is connected to a fourth power Vcc4, the output end of the third switch is connected to the power input end of the second light collecting device, the control end of the third switch is connected to a third control signal output end 03 of the controller, and the signal output end of the second light collecting device is connected to a third signal collecting end I3 of the controller.
Optionally, in an embodiment of the present invention, the first light collecting device may face the sky to collect the ambient light brightness, and the second light collecting device may face the coming direction of the vehicle in the road to detect the vehicle light. The position of the sound collection device is as described above and will not be repeated here.
Optionally, the first light collecting device and the second light collecting device may both use light sensors. Of course, the first light collecting device and the second light collecting device may be light sensors of the same type or light sensors of different types, which is not limited in the present invention.
It should be noted that the circuit structures of the third switch, the first switch and the second switch are completely the same, and the optional configuration of the third switch may be implemented by referring to the above-mentioned first switch and second switch building manner, which is not described herein again.
The following describes a control process of the lighting device control circuit provided by the embodiment of the present invention with reference to the topology diagram of the control circuit shown in fig. 2:
the first light collection device collects ambient light, when the controller judges that the first light brightness fed back by the first light collection device is smaller than a first light brightness threshold value, the controller firstly controls the third switch to be closed, the second light collection device starts to work, vehicle light is collected, if the second light brightness fed back by the second light collection device is larger than a second light brightness threshold value, the controller controls the first switch to be closed, the sound collection device is powered on to work, the ambient sound is collected, when the ambient sound collected by the sound collection device is larger than a preset sound threshold value, the controller controls the second switch to be closed, the lighting device is powered on to work, and lighting is provided for passing vehicles.
Accordingly, the controller does not control the operation of the lighting device as long as one of the three determination conditions is not satisfied.
According to the lighting device control circuit provided by the embodiment of the invention, not only are the ambient light brightness and the ambient sound considered, but also the vehicle light brightness is combined, and the lighting device is controlled to work only under the condition that the dual conditions of insufficient ambient light and vehicle coming are met and further judgment is carried out through the ambient sound, so that the accuracy of the control process of the lighting device can be effectively improved, and the purpose of saving electric energy is achieved.
In conjunction with the embodiment shown in fig. 1 and the embodiment shown in fig. 2, it should be specifically noted that the first preset condition according to the embodiment of the present invention is different according to different applicable control circuits. Specifically, for the embodiment shown in fig. 1, the first preset condition is that the first light brightness fed back by the first light collecting device is smaller than the first light brightness threshold; for the embodiment shown in fig. 2, the first preset condition is that the first light brightness fed back by the first light collecting device is smaller than the first light brightness threshold, and the second light brightness fed back by the second light collecting device is greater than the second light brightness threshold. In actual use, specific circuit result settings may be incorporated.
The following describes a control method of a lighting device according to an embodiment of the present invention. The lighting device control method provided by the embodiment of the invention is applied to the lighting device control circuit provided by any one of the above embodiments, and particularly, is applied to a controller in the lighting device control circuit.
Optionally, referring to fig. 3, fig. 3 is a flowchart of a control method of an illumination apparatus according to an embodiment of the present invention, where the flowchart of the control method according to the embodiment may include:
and S100, acquiring the brightness of the light.
After a controller and a first light collecting device in the control circuit are powered on, the controller can obtain the light brightness through the first light collecting device.
S110, judging whether the light brightness meets a first preset condition, if so, executing S120, and if not, returning to S100.
Optionally, a first light brightness threshold is preset in the control logic, and if the light brightness fed back by the first light collecting device is smaller than the first light brightness threshold, it is determined that a first preset condition is met, and S120 is executed; on the contrary, if the light brightness fed back by the first light collecting device is not less than the first light brightness threshold, the process returns to step S100 to continue collecting the light brightness.
And S120, controlling a first switch in the lighting device control circuit to be closed, and acquiring the ambient sound.
Under the condition that satisfies first preset condition, can control first switch closure, open sound collection system, acquire the ambient sound.
S130, determining whether the ambient sound satisfies a second predetermined condition, if yes, executing S140, otherwise, returning to execute S120.
After the sound collection device works, if the collected environmental sound is larger than a preset sound threshold value, judging that a second preset condition is met, and executing S140; conversely, returning to the execution of S120, the ambient sound continues to be acquired.
And S140, controlling a second switch in the lighting device control circuit to be closed so as to electrify the driving circuit of the lighting device and drive the light source to work.
Under the condition that a second preset condition is met, the controller can control the second switch to be closed, so that the driving circuit of the lighting device is communicated with the power supply, and further the light source in the lighting device is driven to work to provide lighting.
In summary, according to the lighting device control method provided by the embodiment of the present invention, the ambient light brightness and the ambient sound are considered comprehensively, and the lighting device is controlled to operate only when the light brightness satisfies the first preset condition and the ambient sound satisfies the second preset condition.
Optionally, as for the control circuit provided in the embodiment shown in fig. 2, another control method of the lighting device control circuit is also provided in the embodiment of the present invention. Referring to fig. 4, fig. 4 is a flowchart of another lighting device control method provided in an embodiment of the present invention, where the flowchart may include:
s200, obtaining first light brightness fed back by a first light collecting device in the lighting device control circuit.
After a controller and a first light collecting device in the control circuit are powered on, the controller can obtain first light brightness through the first light collecting device.
S210, judging whether the first light brightness is smaller than a first light brightness threshold value, if so, executing S220, otherwise, returning to execute S200.
Optionally, a first light brightness threshold is preset in the control logic, and if the first light brightness is smaller than the first light brightness threshold, it indicates that the ambient light is insufficient, and the environment may be at night or in other situations where the ambient light may be reduced, in which case S120 is executed; on the contrary, if the first light brightness fed back by the first light collecting device is not less than the first light brightness threshold, the process returns to step S200, and continues to collect the first light brightness.
And S220, controlling a third switch in the lighting device control circuit to be closed, and acquiring second light brightness fed back by a second light acquisition device in the lighting device control circuit.
And under the condition that the first light brightness is smaller than the first light brightness threshold value, the third switch is controlled to be closed, the second light collecting device starts to work, and the controller obtains the second light brightness fed back by the second light collecting device in the lighting device control circuit.
S230, determining whether the second light brightness is greater than the second light brightness threshold, if so, executing S240, otherwise, returning to execute S220.
Optionally, a second light brightness threshold is preset in the control logic, and if the second light brightness is greater than the second light brightness threshold, it indicates that there is a possibility that a vehicle is coming from the road, in which case S240 is executed; on the contrary, if the second light brightness fed back by the second light collecting device is not greater than the second light brightness threshold, the process returns to step S220 to continue collecting the second light brightness.
And S240, controlling a first switch in the lighting device control circuit to be closed, and acquiring the ambient sound.
Under the condition that the first light brightness is smaller than the first light brightness threshold value and the second light brightness is larger than the second light brightness threshold value, the first switch can be controlled to be closed, the sound collection device is started, and the ambient sound is obtained.
S250, determining whether the ambient sound satisfies a second preset condition, if yes, executing S260, otherwise, returning to execute S240.
After the sound collection device works, if the collected environmental sound is larger than a preset sound threshold value, it is determined that a second preset condition is met, and S260 is executed; conversely, returning to S240, the ambient sound continues to be acquired.
And S260, controlling a second switch in the lighting device control circuit to be closed so as to electrify the driving circuit of the lighting device and drive the light source to work.
Under the condition that a second preset condition is met, the controller can control the second switch to be closed, so that the driving circuit of the lighting device is communicated with the power supply, and further the light source in the lighting device is driven to work to provide lighting.
In summary, the lighting device control method provided in the embodiment of the present invention not only considers the ambient light brightness and the ambient sound, but also combines the light brightness of the vehicle, and only when the dual conditions of insufficient ambient light and coming vehicle are satisfied, and further determination is performed through the ambient sound, the lighting device is controlled to operate, so that the accuracy of the lighting device control process can be effectively improved, and the purpose of saving electric energy is achieved.
It is conceivable that, in the embodiment of the present invention, the first preset condition is specifically: the first light brightness fed back by the first light collection device is smaller than a first light brightness threshold value, and the second light brightness fed back by the second light collection device is larger than a second light brightness threshold value.
Optionally, in order to further improve the accuracy of the control process, on the premise that S250 is executed and the ambient sound is determined to meet the second preset condition, the process of controlling the second switch to be closed may be further optimized.
Specifically, after it is determined that the ambient sound meets a second preset condition, the second light brightness fed back by the second light collecting device is obtained again after the preset time delay. And if the second light brightness obtained by re-obtaining is still larger than the second light brightness threshold value, the environmental sound fed back by the sound collection device is re-obtained. And finally, controlling a second switch in the lighting device control circuit to be closed and starting the lighting device to work if the obtained environmental sound is acquired again and is larger than the preset sound threshold.
Optionally, an embodiment of the present invention further provides a lighting device, including: the light source, the driving circuit, and the lighting device control circuit provided by any of the above embodiments, wherein,
the light source is electrically connected with the driving circuit and is used for lighting under the driving of the driving circuit;
and the driving end of the driving circuit is connected with the control end of a second switch in the lighting device control circuit.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A lighting device control circuit, comprising: a first light collection device, a sound collection device, a first switch, a second switch, and a controller,
the power supply input end of the first light ray acquisition device is connected with a first power supply, and the signal output end of the first light ray acquisition device is connected with the first signal acquisition end of the controller;
the input end of the first switch is connected with a second power supply, the output end of the first switch is connected with the power supply input end of the sound acquisition device, and the control end of the first switch is connected with the first control signal output end of the controller;
the signal output end of the sound acquisition device is connected with the second signal acquisition end of the controller;
the input end of the second switch is connected with a third power supply, the output end of the second switch is connected with the driving end of a driving circuit of the lighting device, and the control end of the second switch is connected with a second control signal output end of the controller;
the controller is used for controlling the second switch to be closed under the condition that the light brightness fed back by the first light collecting device meets a first preset condition and the environment sound fed back by the sound collecting device meets a second preset condition, so that the driving circuit is powered on and the light source is driven to work.
2. The lighting device control circuit of claim 1, further comprising: a third switch and a second light collection device, wherein,
the input end of the third switch is connected with a fourth power supply, the output end of the third switch is connected with the power supply input end of the second light collecting device, and the control end of the third switch is connected with the third control signal output end of the controller;
and the signal output end of the second light ray acquisition device is connected with the third signal acquisition end of the controller.
3. The lighting device control circuit according to claim 2, wherein the first switch, the second switch, and the third switch are switches having the same circuit configuration, and the switches include: a first switch tube, a second switch tube and a first resistor, wherein,
one end of the first resistor is connected with a corresponding power supply, and the other end of the first resistor is grounded through the first switch tube;
the control end of the first switch tube is used as the control end of the corresponding switch;
the input end of the second switch tube is used as the input end of the corresponding switch, the output end of the second switch tube is used as the output end of the corresponding switch, and the control end of the second switch tube is connected with the series connection point of the first resistor and the first switch tube.
4. The lighting device control circuit of claim 3, wherein the switch further comprises: an input filter circuit comprising a second resistor and a first capacitor, wherein,
one end of the second resistor is used as a control end of the corresponding switch, and the other end of the second resistor is grounded through the first capacitor;
and the control end of the first switching tube is connected with the series connection point of the second resistor and the first capacitor.
5. The lighting device control circuit of claim 3, wherein the switch further comprises: and a filter capacitor is output, wherein,
one end of the output filter capacitor is connected with the output end of the corresponding switch, and the other end of the output filter capacitor is grounded.
6. The lighting device control circuit of claim 3, wherein the switch further comprises: a slow start circuit including a third resistor and a second capacitor, wherein,
one end of the second capacitor is connected with the input end of the corresponding switch, and the other end of the second capacitor is connected with the series connection point of the first switch tube and the first resistor through the third resistor;
and the control end of the second switching tube is connected with the series connection point of the third resistor and the second capacitor.
7. A lighting device control method applied to a controller in a lighting device control circuit according to any one of claims 1 to 6, the method comprising:
acquiring light brightness;
if the light brightness meets a first preset condition, controlling a first switch in a control circuit of the lighting device to be closed, and acquiring environmental sound;
and if the ambient sound meets a second preset condition, controlling a second switch in the lighting device control circuit to be closed so as to electrify a driving circuit of the lighting device and drive the light source to work.
8. The method as claimed in claim 7, wherein if the lighting device control circuit comprises a third switch and a second light collecting device, the obtaining the light brightness comprises:
acquiring first light brightness fed back by a first light acquisition device in the lighting device control circuit;
and if the first light brightness is smaller than the first light brightness threshold value, controlling a third switch in the lighting device control circuit to be closed, and acquiring second light brightness fed back by a second light acquisition device in the lighting device control circuit.
9. The method as claimed in claim 8, wherein the controlling a second switch in the lighting device control circuit to close if the ambient sound satisfies a second predetermined condition comprises:
obtaining second light brightness fed back by the second light collecting device again;
if the second light brightness obtained by re-obtaining is larger than the second light brightness threshold value, re-obtaining the environmental sound fed back by the sound collection device;
and if the obtained environmental sound is acquired again and is larger than the preset sound threshold, controlling a second switch in the lighting device control circuit to be closed.
10. An illumination device, comprising: a light source, a driving circuit, and the lighting device control circuit of any one of claims 1-6, wherein,
the light source is electrically connected with the driving circuit and is used for lighting under the driving of the driving circuit;
and the driving end of the driving circuit is connected with the control end of a second switch in the lighting device control circuit.
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| CN201911038395.3A CN112822824A (en) | 2019-10-29 | 2019-10-29 | Lighting device control circuit, control method and lighting device |
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| CN201911038395.3A CN112822824A (en) | 2019-10-29 | 2019-10-29 | Lighting device control circuit, control method and lighting device |
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