CN111866445A - Monitoring device, method, apparatus and storage medium - Google Patents
Monitoring device, method, apparatus and storage medium Download PDFInfo
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- CN111866445A CN111866445A CN201911365544.7A CN201911365544A CN111866445A CN 111866445 A CN111866445 A CN 111866445A CN 201911365544 A CN201911365544 A CN 201911365544A CN 111866445 A CN111866445 A CN 111866445A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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Abstract
The application provides monitoring equipment, a monitoring method, a monitoring device and a storage medium, and relates to the technical field of monitoring. In the embodiment of the application, the control chip can acquire the first illumination intensity of the current environment according to the illumination information acquired by the photosensitive diode, and acquire the second illumination intensity of the current environment according to the image information acquired by the image acquisition unit; if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplementing lamp to be turned on; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off. Whether the light supplement lamp needs to be turned on or not under the illumination condition of the current environment is determined based on the first illumination intensity and the second illumination intensity, so that the accuracy of control is higher when the light supplement lamp is controlled to be turned on or turned off based on different illumination conditions.
Description
Technical Field
The present application relates to the field of monitoring technologies, and in particular, to a monitoring device, a monitoring method, a monitoring device, and a storage medium.
Background
The video monitoring can be applied to the field of security protection, and images of the surrounding environment are acquired through a camera at the front end and stored. Through real-time watching, replaying and the like of the stored images, historical events in the environment can be obtained, for example, behaviors of people in the environment can be recorded, and powerful evidence is provided for pursuing illegal behaviors such as theft, robbery and the like. When the image is obtained through video monitoring, the image is often influenced by ambient light, and when the ambient light is poor, the definition of the obtained image is low.
At present, a mode of combining photosensitive diode detection and infrared light supplement is generally adopted, and the image acquired by video monitoring under the poor light condition can be clearly visible. The photosensitive diode and the infrared light supplement lamp can be respectively connected with the video monitor, and illumination information in the environment can be collected through the photosensitive diode and sent to the video monitor; the video monitoring can judge whether the illumination intensity in the environment is lower than a preset threshold value according to illumination information sent by the photosensitive diode, and when the illumination intensity is lower than the preset threshold value, the video monitoring can control the infrared light supplement lamp to be turned on, so that the image is switched from a color image to a black and white image, and the definition of the image is ensured; when the illumination intensity is greater than or equal to the preset threshold value, the video monitoring can control the infrared light supplement lamp to be turned off, and the image is switched back to the color image from the black and white image.
However, in the prior art, the judgment method for whether the infrared light supplement lamp needs to be turned on is single, and the control is inaccurate.
Disclosure of Invention
The application provides a monitoring device, a monitoring method, a monitoring device and a storage medium, which can judge whether a light supplement lamp needs to be turned on according to the ambient illumination intensity, and ensure that an image acquired by video monitoring under a poor light condition can be clearly visible.
In a first aspect, an embodiment of the present application provides a monitoring device, including: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp. The control chip is used for acquiring a first illumination intensity of the current environment according to the illumination information acquired by the photosensitive diode and acquiring a second illumination intensity of the current environment according to the image information acquired by the image acquisition unit; if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplementing lamp to be turned on; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
Optionally, the control chip is further configured to control the light supplement lamp to keep a current on or off state if the first illumination intensity does not meet a preset condition, and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, where the first preset threshold is less than the second preset threshold.
Optionally, the control chip is specifically configured to receive an electrical signal sent by the photodiode, where the electrical signal is used to indicate the first illumination intensity; if the electric signal is smaller than a third preset threshold value or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on; and if the electric signal is greater than or equal to the third preset threshold and the second illumination intensity is greater than the second preset threshold, controlling the light supplement lamp to be turned off.
Optionally, the monitoring device further comprises: and the triode and the photosensitive diode are connected with the control chip through the triode. The control chip is specifically used for receiving a level signal sent by the triode; if the level signal is high level or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on; and if the level signal is a low level and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
Optionally, the control chip is specifically configured to receive image information sent by the image acquisition unit, and obtain an exposure value EV according to the image information, where the EV is used to indicate the second illumination intensity.
Optionally, the first preset threshold and the third preset threshold are the same.
Optionally, the control chip is further configured to control the image acquisition unit to acquire a black-and-white image after the light supplement lamp is controlled to be turned on; or after the light supplement lamp is controlled to be turned off, the image acquisition unit is controlled to acquire the color image.
In a second aspect, an embodiment of the present application provides a monitoring method, where the method is applied to a monitoring device, and the monitoring device includes: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp. The method comprises the following steps:
the control chip acquires a first illumination intensity of the current environment according to illumination information acquired by the photosensitive diode;
the control chip acquires a second illumination intensity of the current environment according to the image information acquired by the image acquisition unit;
if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, the control chip controls the light supplement lamp to be turned on;
if the first illumination intensity does not meet the preset condition and the second illumination intensity is larger than the second preset threshold value, the control chip controls the light supplement lamp to be turned off.
Optionally, the method further comprises:
if the first illumination intensity does not meet the preset condition, and the second illumination intensity is greater than or equal to a first preset threshold value and less than or equal to a second preset threshold value, the control chip controls the light supplement lamp to keep a current on or off state, wherein the first preset threshold value is less than the second preset threshold value.
Optionally, the obtaining, by the control chip, the first illumination intensity of the current environment according to the illumination information collected by the photodiode includes:
the control chip receives an electric signal sent by the photosensitive diode, and the electric signal is used for indicating the first illumination intensity;
correspondingly, if the first illumination intensity satisfies the preset condition or the second illumination intensity is smaller than the first preset threshold, the control chip controls the light supplement lamp to be turned on, including:
if the electric signal is smaller than a third preset threshold value or the second illumination intensity is smaller than the first preset threshold value, the control chip controls the light supplement lamp to be turned on;
above-mentioned if first illumination intensity does not satisfy preset condition, and second illumination intensity is greater than the second and predetermines the threshold value, then control chip control light filling lamp closes, includes:
if the electric signal is greater than or equal to the third preset threshold and the second illumination intensity is greater than the second preset threshold, the control chip controls the light supplement lamp to be turned off.
Optionally, the monitoring device further comprises: and the triode and the photosensitive diode are connected with the control chip through the triode. The control chip obtains the first illumination intensity of the current environment according to the illumination information collected by the photosensitive diode, and comprises:
the control chip receives a level signal sent by the triode;
Correspondingly, if the first illumination intensity satisfies the preset condition or the second illumination intensity is smaller than the first preset threshold, the control chip controls the light supplement lamp to be turned on, including:
if the level signal is high level or the second illumination intensity is smaller than a first preset threshold value, the control chip controls the light supplement lamp to be turned on;
above-mentioned if first illumination intensity does not satisfy preset condition, and second illumination intensity is greater than the second and predetermines the threshold value, then control chip control light filling lamp closes, includes:
if the level signal is at a low level and the second illumination intensity is greater than a second preset threshold, the control chip controls the light supplement lamp to be turned off.
Optionally, the acquiring, by the control chip, the second illumination intensity of the current environment according to the image information acquired by the image acquisition unit includes:
the control chip receives the image information sent by the image acquisition unit;
the control chip obtains an exposure value EV according to the image information, and the EV is used for indicating the second illumination intensity.
Optionally, the first preset threshold and the third preset threshold are the same.
Optionally, the method further comprises:
the control chip controls the image acquisition unit to acquire black and white images after controlling the light supplement lamp to be turned on;
or after the control chip controls the light supplement lamp to be turned off, the control chip controls the image acquisition unit to acquire the color image.
In a third aspect, an embodiment of the present application provides a monitoring apparatus, where the apparatus is applied to a monitoring device, and the monitoring device includes: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp; the device comprises:
the first acquisition module is used for acquiring first illumination intensity of the current environment according to illumination information acquired by the photosensitive diode; the second acquisition module is used for acquiring second illumination intensity of the current environment according to the image information acquired by the image acquisition unit; the control module is used for controlling the light supplementing lamp to be turned on if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplementing lamp to be turned off.
Optionally, the control module is further configured to control the light supplement lamp to keep a current on or off state if the first illumination intensity does not meet a preset condition, and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, where the first preset threshold is less than the second preset threshold.
Optionally, the first obtaining module is specifically configured to receive an electrical signal sent by a photodiode, where the electrical signal is used to indicate a first illumination intensity; correspondingly, the control module is specifically configured to control the light supplement lamp to turn on if the electrical signal is smaller than a third preset threshold value or the second illumination intensity is smaller than the first preset threshold value; and if the electric signal is greater than or equal to a third preset threshold and the second illumination intensity is greater than a second preset threshold, controlling the light supplement lamp to be turned off.
Optionally, the monitoring device further comprises: the triode and the photosensitive diode are connected with the control chip through the triode; the first acquisition module is specifically used for receiving a level signal sent by the triode; correspondingly, the control module is specifically configured to control the light supplement lamp to turn on if the level signal is a high level or the second illumination intensity is smaller than a first preset threshold; and if the level signal is a low level and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
Optionally, the second obtaining module is specifically configured to receive image information sent by the image acquiring unit; an exposure value EV is obtained from the image information, the EV being indicative of a second illumination intensity.
Optionally, the first preset threshold and the third preset threshold are the same.
Optionally, the control module is further configured to control the image acquisition unit to acquire a black-and-white image after controlling the light supplement lamp to be turned on; or after the light supplement lamp is controlled to be turned off, the image acquisition unit is controlled to acquire the color image.
In a fourth aspect, embodiments of the present application further provide a storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the method according to the second aspect.
In this application embodiment, control chip can be based on according to the illumination information that photosensitive diode gathered, acquire the first illumination intensity of current environment to and according to the image information that image acquisition unit gathered, acquire the second illumination intensity of current environment, and judge whether need open the light filling lamp under the illumination condition of confirming current environment based on first illumination intensity and second illumination intensity jointly, thereby can be when opening or closing based on the illumination condition control light filling lamp of difference, the accuracy of control is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 shows a schematic structural diagram of a monitoring device provided in an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating another structure of a monitoring device provided in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating connection between a photodiode and a transistor provided in an embodiment of the present application;
fig. 4 is a schematic flow chart illustrating a monitoring method provided in an embodiment of the present application;
fig. 5 is another schematic flow chart of a monitoring method provided in an embodiment of the present application;
fig. 6 is a schematic flow chart of a monitoring method provided in the embodiment of the present application;
fig. 7 is a schematic flow chart of a monitoring method provided in the embodiment of the present application;
fig. 8 is a schematic flow chart of a monitoring method provided in the embodiment of the present application;
fig. 9 shows a schematic structural diagram of a monitoring device provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", "third", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
The application provides a monitoring device, and the monitoring device can be applied to the field of security and protection and can acquire images of surrounding environments. When ambient light changes, whether the light supplement lamp needs to be turned on or not can be judged according to ambient light intensity, and the image acquired under the poor light condition can be clearly visible.
Fig. 1 shows a schematic structural diagram of a monitoring device provided in an embodiment of the present application.
As shown in fig. 1, the monitoring apparatus may include: the control chip 110 is electrically connected with the image acquisition unit 120, the photosensitive diode 130 and the light supplement lamp 140 respectively.
The image capturing unit 120 may be a camera, etc., and the camera may be a digital camera or an analog camera. The image capturing unit 120 may capture image information of the surrounding environment, for example, a picture, a video, etc., and transmit the image information to the control chip 110. The control chip 110 may send the image information to a storage medium for storage, or the image acquisition unit 120 may directly send the image information to the storage medium for storage.
Alternatively, the storage medium may include: the storage medium may be a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, an optical disk, or the like, or may be a cloud server.
The photodiode 130 can generate a current or a voltage with a corresponding magnitude according to the change of the illumination intensity in the surrounding environment, and transmit the current or the voltage to the control chip 110. That is, the photodiode 130 may collect illumination information and transmit the illumination information to the control chip 110.
The control chip 110 may be configured to obtain a first illumination intensity of the current environment according to the illumination information collected by the photodiode 130, and obtain a second illumination intensity of the current environment according to the image information collected by the image collecting unit 120; if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold, controlling the light supplement lamp 140 to be turned on; if the first illumination intensity does not satisfy the preset condition and the second illumination intensity is greater than the second preset threshold, the fill-in light 140 is controlled to be turned off.
The preset condition may be whether the first illumination intensity is lower than a certain preset illumination intensity. For example, for the photodiode 130, it is usually operated under reverse voltage, and in the absence of light, the reverse current of the photodiode 1130 is small (e.g., less than 0.1 microampere); when the light is irradiated, the photons carrying energy can be transmitted to the photodiode 130, so that the reverse current in the photodiode 130 is increased, and when the light intensity is greater than or equal to the preset light intensity, the photodiode 130 can be conducted; when the illumination intensity is insufficient, for example, less than the predetermined illumination intensity, the resistance of the photodiode 130 is large, and it can be considered as non-conducting.
Optionally, when the first illumination intensity meets a preset condition, or the second illumination intensity is smaller than a first preset threshold, and any one of the first illumination intensity and the second illumination intensity is right, the current ambient light may be considered to be poor, and the control chip 110 may control the light supplement lamp 140 to be turned on; after the fill light 140 is turned on, the image acquisition unit 120 may more clearly acquire image information of the surrounding environment. When the first illumination intensity does not satisfy the preset condition and the second illumination intensity is greater than the second preset threshold value, and when the first illumination intensity is satisfied, the current ambient light is considered to be better, the control chip 110 can control the light supplement lamp 140 to be turned off, so as to reduce unnecessary power loss.
For example, with the increase of internet services, monitoring of the conditions inside the vehicle is particularly important in the process of the network car appointment service. By taking a video monitoring scene in a vehicle as an example, in order to guarantee the safety of a driver or a passenger, the monitoring device provided by the embodiment of the application can be installed in vehicles such as a network taxi appointment, a taxi and a bus, and the monitoring device can shoot and record the environment in the vehicle so as to retain evidences. When the vehicle runs at night, dusk, dawn and other time periods with poor illumination intensity, the control chip in the monitoring equipment can control the light supplement lamp to be turned on so as to ensure that the shot video is clear and visible; when the vehicle is driven in a time period with better illumination intensity in the daytime, the control chip can control the light supplement lamp to be turned off so as to save electric quantity.
It should be noted that, in the embodiment of the application, when the control chip controls the light supplement lamp to be turned on, the determination criterion is that the first illumination intensity meets the preset condition, or the second illumination intensity is smaller than the first preset threshold, and any one of the first illumination intensity and the second illumination intensity is satisfied; when the control chip controls the light supplement lamp to be turned off, the judgment standard is that the first illumination intensity does not meet the preset condition, and the second illumination intensity is greater than the second preset threshold value, and all the conditions need to be established, so that when the monitoring device is put into use, the light supplement lamp can be preferentially ensured to be turned on in time, and the condition requirement for turning off the light supplement lamp is higher, that is, the priority for turning on the light supplement lamp is higher than the priority for turning off the light supplement lamp, so that the image information obtained under different illumination conditions is preferentially ensured to be clear and visible.
From top to bottom, in this application embodiment, control chip can be based on the illumination information according to photosensitive diode collection, acquire the first illumination intensity of current environment to and according to the image information that image acquisition unit gathered, acquire the second illumination intensity of current environment, and judge whether need open the light filling lamp under the illumination condition of confirming current environment based on first illumination intensity and second illumination intensity jointly, thereby can be when opening or closing based on the illumination condition control light filling lamp of difference, the accuracy of control is higher.
Optionally, in this embodiment of the application, the control chip 110 may be further configured to control the light supplement lamp 140 to keep a current on or off state if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, where the first preset threshold is less than the second preset threshold.
As described above, when the control chip determines that the first illumination intensity does not satisfy the predetermined condition, that is, the photodiode is turned on, and the second illumination intensity is greater than or equal to the first predetermined threshold and less than or equal to the second predetermined threshold, the light supplement lamp can be controlled to keep the current on or off state. For example, if the light supplement lamp is currently in an on state, the control chip may not control the light supplement lamp to perform a switching action, or may also control the light supplement lamp to continue to be turned on; the fill-in light is similar when in the off state, and is not described herein again.
Taking the above-mentioned in-vehicle video monitoring scene as an example, when the vehicle passes through a tunnel, a tree shadow and other environments during driving, the in-vehicle light line may be deteriorated. In the monitoring device, if the control chip judges that the first illumination intensity meets the preset condition or the second illumination intensity is smaller than any one of the first preset threshold values, the light supplementing lamp can be controlled to be turned on, so that the image information acquired by the monitoring device is preferentially ensured to be clear and visible. When a vehicle passes through a tunnel, a tree shadow and other environments, the light line part in the vehicle may become good, and when the vehicle continuously passes through the tunnel or the tree shadow which are distributed at intervals, the light line part in the vehicle may be poor.
For example, if the first preset threshold is 2lux (lux) and the second preset threshold is 8lux, the control chip may control the fill-in light to turn on when the first illumination intensity meets the preset condition or the second illumination intensity is less than 2lux, and any one of the first illumination intensity and the second illumination intensity is satisfied; when the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than 8lux and the first illumination intensity and the second illumination intensity are both satisfied, the control chip controls the light supplement lamp to be turned off; and when the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than or equal to 2lux and less than or equal to 8lux (for example, the second illumination intensity is 2lux, 3lux, 5lux, 8lux and the like), the control chip can control the current closing or opening state of the light supplement lamp to be unchanged.
In one embodiment, the control chip 110 may be specifically configured to receive an electrical signal sent by the photodiode 130, where the electrical signal is used to indicate a first illumination intensity; if the electrical signal is smaller than a third preset threshold value or the second illumination intensity is smaller than the first preset threshold value, controlling the light supplement lamp 140 to be turned on; if the electrical signal is greater than or equal to the third preset threshold and the second illumination intensity is greater than the second preset threshold, the fill-in light 140 is controlled to be turned off.
The electrical signal may be current information or voltage information, and when the illumination condition in the environment changes, the current passing through the photodiode or the voltage across the photodiode changes according to the illumination condition, that is, the electrical signal sent by the photodiode to the control chip changes accordingly.
Alternatively, the third preset threshold may be a preset current magnitude or a preset voltage magnitude. Taking the third preset threshold as the preset current magnitude and the electrical signal as the current passing through the photodiode as an example, if the current (electrical signal) passing through the photodiode is smaller than the preset current magnitude (the third preset threshold) or the second illumination intensity is smaller than the first preset threshold, the light supplement lamp can be controlled to be turned on; if the current passing through the photosensitive diode is larger than or equal to the preset current and the second illumination intensity is larger than a second preset threshold value, the light supplement lamp can be controlled to be turned off. When the third preset threshold is a preset voltage and the electrical signal is a voltage at two ends of the photodiode, the control process is similar and will not be described herein again.
Optionally, the third preset threshold may also be illumination intensity corresponding to a preset current magnitude or a preset voltage magnitude, for example, a mapping relationship may be established between the current passing through the photodiode and the first illumination intensity in the environment sensed by the photodiode at present, and the corresponding first illumination intensity may be determined according to the current passing through the photodiode through the mapping relationship, and the first illumination intensity is compared with the third preset threshold, so as to control the light supplement lamp to be turned on or turned off.
In this embodiment, the first preset threshold and the third preset threshold may be the same. For example, if the first preset threshold is 2lux, the third preset threshold may also be 2lux, or the illumination intensity corresponding to the third preset threshold may also be 2 lux. Alternatively, the first preset threshold and the third preset threshold may be different. For example, the first preset threshold may be 2lux, and the third preset threshold may be 1lux, 1.8lux, 2.1lux, and so on, which is not limited herein.
Fig. 2 shows another schematic structural diagram of the monitoring device provided in the embodiment of the present application.
As shown in fig. 2, in another embodiment, the monitoring device may further include: the transistor 150 and the photodiode 130 are connected to the control chip 110 through the transistor 150. The control chip 110 is specifically configured to receive a level signal sent by the transistor 150; if the level signal is a high level or the second illumination intensity is smaller than a first preset threshold, controlling the light supplement lamp 140 to be turned on; if the level signal is at a low level and the second illumination intensity is greater than the second preset threshold, the fill-in light 140 is controlled to be turned off.
Fig. 3 shows a schematic connection diagram of a photodiode and a transistor provided in an embodiment of the present application.
As shown in fig. 3, in this embodiment, the cathode of the photodiode 130 may be connected to the base of the transistor 150, meeting at the point a, and the anode of the photodiode 130 may be grounded. The collector of transistor 150 may be connected to point c through resistor R1; the emitter of transistor 150 may be connected to point c through resistor R2 and to ground through resistor R3, respectively. The point a and the point b may be used for external power supply, and the point c may be connected to a control chip, for example, the control chip may be an Image Signal Processing (ISP) chip.
When the light conditions in the environment are better, such as: when the illumination intensity reaches a certain value, the photosensitive diode can be conducted; when the photosensitive diode is conducted, the base electrode of the triode is at a high level, and at the moment, the triode is conducted; after the triode is in a conducting state, a high level signal is generated by a collector (point c) of the triode, a control chip connected to the point c can acquire the high level signal of the collector of the triode, and if the control chip acquires the high level signal or judges that the second illumination intensity is smaller than a first preset threshold value, the light supplementing lamp can be controlled to be turned on. When the light condition in the environment is poor and the photosensitive diode is not conducted, the base electrode of the triode is at a low level, the triode is in a non-conducting state, at the moment, a signal generated by the collector electrode (point c) of the triode is a low level signal, the control chip connected to the point c can acquire the low level signal of the collector electrode of the triode, and if the control chip acquires the low level signal and judges that the second illumination intensity is larger than the second preset threshold value, the light supplementing lamp can be controlled to be turned off.
Optionally, in this embodiment, the transistor may be an NPN transistor shown in fig. 3, or may also be a PNP transistor, which is not limited in this application.
Please continue to refer to fig. 3:
optionally, in this embodiment, two ends of the photodiode 130 may be further connected in parallel with an electrostatic discharge (ESD) diode, when the circuit normally works, the ECD diode is in a cut-off state (high-resistance state) and does not affect the normal work of the circuit, and when the circuit has abnormal overvoltage and reaches its breakdown voltage, the ECD diode may be rapidly changed from the high-resistance state to the low-resistance state to provide a low-resistance conduction path for the instantaneous current, and the abnormal high voltage is clamped within a safe level, so as to achieve the purpose of protecting the circuit. When the abnormal overvoltage disappears, the ECD diode can be restored to a high-resistance state, and the circuit continues to work normally.
Alternatively, the control chip 110 may be specifically configured to receive the image information sent by the image capturing unit 120, and obtain an Exposure Value (EV) according to the image information, where the EV may be used to indicate the second illumination intensity.
The EV may reflect an exposure amount when the image information is acquired, and indirectly reflect the illumination intensity in the environment, that is, the EV may be acquired through the image information, so as to obtain the corresponding second illumination intensity. For example, when the image acquisition unit acquires image information, if the illumination condition in the current environment is poor (for example, the light is dark), the EV can be increased, that is, the exposure value is large; conversely, if the lighting conditions in the current environment are better (e.g., the light is stronger), the EV may be adjusted lower, i.e., the exposure value is smaller. That is, the EV may have an association with the illumination intensity in the environment at the time of acquiring the image information, and the EV corresponding to the image information may be acquired to represent the second illumination intensity.
Taking the following table 1 as an example:
| group of | EV | lux | EV | lux |
| 1 | 0E06 | 7.6 | 0C0F | 1.6 |
| 2 | 0E0F | 9.5 | 0C23 | 2 |
| 3 | 0E30 | 8.8 | 0BE3 | 1.9 |
| 4 | 0E21 | 8.2 | 0BF9 | 2.1 |
Table 1 shows the correlation between sets of different EVs and illumination intensity (in: lux). After the control chip receives the image information, the EV corresponding to the image information can be obtained by inquiring parameters of the image information, and the EV is used as the second illumination intensity, so that the light supplement lamp is controlled to be turned on or turned off.
It should be noted that table 1 is only an exemplary description, and does not list all the association relationships between different EVs and illumination intensities, and in an actual implementation process, images under different illumination conditions and illumination intensities in environments corresponding to the images may be acquired through multiple tests, and a more comprehensive association relationship between different EVs and illumination intensities is established according to the acquired test data. In the process of determining the preset threshold, the correlation between the EV and the illumination intensity may also be referred to determine an appropriate threshold.
Optionally, the control chip 110 is further configured to control the image acquisition unit 120 to acquire a black-and-white image after controlling the light supplement lamp 140 to be turned on; or, after the fill-in light 140 is controlled to be turned off, the image capture unit 120 is controlled to capture a color image.
Based on the monitoring device described in the foregoing embodiment, the embodiment of the present application further provides a monitoring method. The method may be applied to the monitoring device described in the foregoing embodiment, and fig. 4 shows a flowchart of the monitoring method provided in the embodiment of the present application.
As shown in fig. 4, the monitoring method may include:
s401, the control chip obtains a first illumination intensity of the current environment according to illumination information collected by the photosensitive diode.
S402, the control chip acquires second illumination intensity of the current environment according to the image information acquired by the image acquisition unit.
And S403, if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on by the control chip.
S404, if the first illumination intensity does not meet the preset condition and the second illumination intensity is larger than a second preset threshold value, the control chip controls the light supplement lamp to be turned off.
Fig. 5 shows another schematic flow chart of the monitoring method provided in the embodiment of the present application.
Optionally, as shown in fig. 5, on the basis of the foregoing embodiment, the monitoring method may further include:
s405, if the first illumination intensity does not meet the preset condition, and the second illumination intensity is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, the control chip controls the light supplement lamp to keep the current on or off state.
The first preset threshold is smaller than the second preset threshold.
Fig. 6 shows another schematic flow chart of the monitoring method provided in the embodiment of the present application.
Optionally, as shown in fig. 6, the acquiring, by the control chip, the first illumination intensity of the current environment according to the illumination information collected by the photodiode may include:
s601, the control chip receives the electric signal sent by the photosensitive diode.
Wherein the electrical signal is indicative of the first illumination intensity.
Correspondingly, above-mentioned if first illumination intensity satisfies preset condition, or second illumination intensity is less than first preset threshold, then control chip control light filling lamp opens, can include:
and S603, if the electric signal is smaller than a third preset threshold value or the second illumination intensity is smaller than the first preset threshold value, controlling the light supplement lamp to be turned on by the control chip.
Above-mentioned if first illumination intensity does not satisfy preset condition, and second illumination intensity is greater than the second and predetermines the threshold value, then control chip control light filling lamp closes, can include:
s604, if the electric signal is greater than or equal to the third preset threshold and the second illumination intensity is greater than the second preset threshold, the control chip controls the light supplement lamp to be turned off.
Fig. 7 shows another schematic flow chart of the monitoring method provided in the embodiment of the present application.
Optionally, the monitoring device may further include: and the triode and the photosensitive diode are connected with the control chip through the triode. As shown in fig. 7, the acquiring, by the control chip, the first illumination intensity of the current environment according to the illumination information collected by the photodiode may include:
S701, the control chip receives a level signal sent by the triode.
Correspondingly, above-mentioned if first illumination intensity satisfies preset condition, or second illumination intensity is less than first preset threshold, then control chip control light filling lamp opens, can include:
and S703, if the level signal is high level or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on by the control chip.
Above-mentioned if first illumination intensity does not satisfy preset condition, and second illumination intensity is greater than the second and predetermines the threshold value, then control chip control light filling lamp closes, can include:
and S704, if the level signal is a low level and the second illumination intensity is greater than a second preset threshold, controlling the light supplement lamp to be turned off by the control chip.
Fig. 8 shows another schematic flow chart of the monitoring method provided in the embodiment of the present application.
Optionally, as shown in fig. 8, the acquiring, by the control chip, the second illumination intensity of the current environment according to the image information acquired by the image acquisition unit may include:
s801, the control chip receives the image information sent by the image acquisition unit.
S802, the control chip obtains an exposure value EV according to the image information.
Wherein the EV is used to indicate the second illumination intensity.
Alternatively, the first preset threshold and the third preset threshold may be the same.
Optionally, the monitoring method may further include:
the control chip controls the image acquisition unit to acquire black and white images after controlling the light supplement lamp to be turned on; or after the control chip controls the light supplement lamp to be turned off, the control chip controls the image acquisition unit to acquire the color image.
Based on the monitoring method described in the foregoing embodiment, an embodiment of the present application further provides a monitoring apparatus, which may be applied to the monitoring device in the foregoing embodiment, for example, integrated in a control chip, and fig. 9 shows a schematic structural diagram of the monitoring apparatus provided in the embodiment of the present application.
As shown in fig. 9, the monitoring apparatus may include: a first acquisition module 11, a second acquisition module 12 and a control module 13. The first obtaining module 11 is configured to obtain a first illumination intensity of a current environment according to illumination information collected by the photodiode. The second obtaining module 12 is configured to obtain a second illumination intensity of the current environment according to the image information collected by the image collecting unit. The control module 13 is configured to control the light supplement lamp to turn on if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplementing lamp to be turned off.
Optionally, the control module 13 may be further configured to control the light supplement lamp to keep a current on or off state if the first illumination intensity does not meet the preset condition, and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, where the first preset threshold is less than the second preset threshold.
Optionally, the first obtaining module 11 may be specifically configured to receive an electrical signal sent by a photodiode, where the electrical signal is used to indicate the first illumination intensity. Correspondingly, the control module 13 may be specifically configured to control the light supplement lamp to turn on if the electrical signal is smaller than a third preset threshold, or the second illumination intensity is smaller than the first preset threshold; and if the electric signal is greater than or equal to a third preset threshold and the second illumination intensity is greater than a second preset threshold, controlling the light supplement lamp to be turned off.
Optionally, the monitoring device may further include: and the triode and the photosensitive diode are connected with the control chip through the triode. The first obtaining module 11 may be specifically configured to receive a level signal sent by a triode; correspondingly, the control module 13 may be specifically configured to control the light supplement lamp to turn on if the level signal is a high level or the second illumination intensity is smaller than a first preset threshold; and if the level signal is a low level and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
Optionally, the second obtaining module 12 may be specifically configured to receive image information sent by the image acquiring unit; an exposure value EV is obtained from the image information, the EV being indicative of a second illumination intensity.
Alternatively, the first preset threshold and the third preset threshold may be the same.
Optionally, the control module 13 may be further configured to control the image acquisition unit to acquire a black-and-white image after controlling the light supplement lamp to be turned on; or after the light supplement lamp is controlled to be turned off, the image acquisition unit is controlled to acquire the color image.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process of the method in the foregoing method embodiment, and is not described in detail in this application.
In the embodiments provided in the present application, it should be understood that the disclosed method and apparatus can be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and there may be other divisions in actual implementation, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some communication interfaces, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one module.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application or a part of the technical solution that substantially contributes to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes several instructions to enable the control chip of the monitoring device to execute all or part of the steps of the method according to the embodiments of the present application.
An embodiment of the present application further provides a storage medium, where the storage medium may include: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk. The storage medium has stored thereon a computer program which, when executed by a processor or the above-mentioned control chip, performs the monitoring method as described in the preceding method embodiment. The specific implementation and technical effects are similar, and are not described herein again.
Alternatively, in this embodiment of the present application, the control chip may be a processor, and the processor may call a computer program stored in the foregoing storage medium to execute the monitoring method described in the foregoing method embodiment. The processor may include one or more processing cores (e.g., a single-core processor (S) or a multi-core processor (S)). Merely by way of example, a Processor may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), an Application Specific Instruction Set Processor (ASIP), a Graphics Processing Unit (GPU), a Physical Processing Unit (PPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a Programmable Logic Device (PLD), a controller, a microcontroller Unit, a reduced Instruction Set computer (reduced Instruction Set computer), a microprocessor, or the like, or any combination thereof.
Alternatively, the control chip may also be an integrated chip that inherits the processor function and the storage function, the computer program may also be directly stored in the control chip, and the control chip may directly call the computer program to execute, which is not limited herein.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (12)
1. A monitoring device, comprising: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp;
the control chip is used for acquiring a first illumination intensity of the current environment according to the illumination information acquired by the photosensitive diode and acquiring a second illumination intensity of the current environment according to the image information acquired by the image acquisition unit; if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
2. The monitoring device according to claim 1, wherein the control chip is further configured to control the light supplement lamp to keep a current on or off state if the first illumination intensity does not satisfy the preset condition and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, where the first preset threshold is less than the second preset threshold.
3. The monitoring device of claim 1, wherein the control chip is specifically configured to receive an electrical signal sent by the photodiode, the electrical signal being indicative of the first illumination intensity; if the electric signal is smaller than a third preset threshold value or the second illumination intensity is smaller than a first preset threshold value, controlling the light supplement lamp to be turned on; and if the electric signal is greater than or equal to a third preset threshold and the second illumination intensity is greater than a second preset threshold, controlling the light supplement lamp to be turned off.
4. The monitoring device of claim 1, further comprising: the photosensitive diode is connected with the control chip through the triode;
the control chip is specifically used for receiving the level signal sent by the triode; if the level signal is a high level or the second illumination intensity is smaller than a first preset threshold, controlling the light supplement lamp to be turned on; and if the level signal is a low level and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
5. The monitoring device according to any one of claims 1 to 4, wherein the control chip is specifically configured to receive image information sent by the image acquisition unit, and obtain an exposure value EV according to the image information, wherein the EV is used for indicating the second illumination intensity.
6. The monitoring device of claim 3, wherein the first and third preset thresholds are the same.
7. The monitoring device according to any one of claims 1 to 4, wherein the control chip is further configured to control the image acquisition unit to acquire a black-and-white image after controlling the fill light to be turned on; or after the light supplement lamp is controlled to be turned off, the image acquisition unit is controlled to acquire the color image.
8. A monitoring method, wherein the method is applied to a monitoring device, and the monitoring device comprises: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp; the method comprises the following steps:
the control chip acquires a first illumination intensity of the current environment according to the illumination information acquired by the photosensitive diode;
The control chip acquires a second illumination intensity of the current environment according to the image information acquired by the image acquisition unit;
if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value, the control chip controls the light supplement lamp to be turned on;
and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off by a control chip.
9. The method of claim 8, further comprising:
if the first illumination intensity does not meet the preset condition, and the second illumination intensity is greater than or equal to a first preset threshold value and less than or equal to a second preset threshold value, the control chip controls the light supplement lamp to keep a current on or off state, wherein the first preset threshold value is less than the second preset threshold value.
10. A monitoring apparatus, characterized in that the apparatus is applied to a monitoring device, the monitoring device comprising: the device comprises a control chip, an image acquisition unit, a photosensitive diode and a light supplementing lamp; the control chip is respectively and electrically connected with the image acquisition unit, the photosensitive diode and the light supplementing lamp; the device comprises:
The first acquisition module is used for acquiring first illumination intensity of the current environment according to the illumination information acquired by the photosensitive diode;
the second acquisition module is used for acquiring second illumination intensity of the current environment according to the image information acquired by the image acquisition unit;
the control module is used for controlling the light supplementing lamp to be turned on if the first illumination intensity meets a preset condition or the second illumination intensity is smaller than a first preset threshold value; and if the first illumination intensity does not meet the preset condition and the second illumination intensity is greater than a second preset threshold value, controlling the light supplement lamp to be turned off.
11. The apparatus of claim 10, wherein the control module is further configured to control the fill-in light to keep a current on or off state if the first illumination intensity does not satisfy the preset condition and the second illumination intensity is greater than or equal to a first preset threshold and less than or equal to a second preset threshold, wherein the first preset threshold is less than the second preset threshold.
12. A storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, carries out the method according to claim 8 or 9.
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