CN219046525U - Automatic fog penetrating and opening system for lens of remote monitoring equipment - Google Patents

Abstract

The utility model discloses a lens fog penetration automatic opening system of a remote monitoring device, which comprises a visibility sensor, a communication circuit, a main control chip and a driving circuit, wherein the visibility sensor is connected with the main control chip through the communication circuit and is used for transmitting detected visibility data to the main control chip, the main control chip is connected with a lens fog penetration switch through the driving circuit and is used for sending an opening or closing signal to the lens fog penetration switch so as to realize optical fog penetration, and the main control chip is connected with a video processing board and sends an electronic fog penetration signal to the video processing board. The utility model can automatically start the fog penetrating function of the monitoring equipment when the visibility is low so as to improve the definition of the monitoring video.

Description

Automatic fog penetrating and opening system for lens of remote monitoring equipment

Technical Field

The utility model relates to the field of lens control, in particular to a lens fog penetrating automatic opening system of remote monitoring equipment.

Background

In the field of surveillance, in particular outdoor surveillance, the definition of surveillance video is affected by the quality of the air or weather in addition to the definition of the camera itself. Especially in northern China, in winter, the weather is fog and haze. Although the existing remote visible light monitoring equipment has the fog penetrating function, the existing technology also needs to manually start the fog penetrating function, and the intelligent degree is low. When the visibility of weather suddenly reduces and just the unmanned value is on duty before the supervisory equipment, fog penetrating function just can not in time open, has seriously influenced the definition of surveillance video, is unsuitable to be used in the environment of long-term unmanned on duty.

At present, in the field of visible light monitoring, the fog penetrating function is very mature. The fog penetration is classified into optical fog penetration and electronic fog penetration. The optical fog transmission is based on the principle that near infrared light can diffract tiny particles, namely, in the invisible light range, light with a specific frequency can penetrate fog, the monitoring camera is specially treated according to different wavelengths so as to achieve the purpose of focusing the camera, and meanwhile, the invisible light with the frequency is imaged by redesigning the camera, and the invisible light does not have a corresponding visible light color pattern, so that the displayed image is black and white. Optically transparent fog is a basic operation to switch the optical filter inside the lens. The electronic fog transmission is to obtain clear image, and the image processing chip is used to automatically detect the density of the image and maintain the details of the image signal to realize color enhancement, contrast enhancement, edge enhancement, contrast enhancement and brightness enhancement, and to perform density segmentation, deblurring and other operations, so that the image quality of the image in different scenes is obviously improved and the fog transmission purpose is achieved. Electronic defogging is a basic operation that is image processing of blurred video. The utility model discloses a novel intelligent mist-permeable device which is characterized in that an existing mist-permeable technology is utilized, and the mist-permeable function is only intelligently opened.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the remote monitoring equipment lens fog-penetrating automatic opening system which can automatically open the fog-penetrating function of the monitoring equipment when the visibility is low so as to improve the definition of the monitoring video.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a remote supervisory equipment camera lens fog-penetrating automatic opening system, includes visibility sensor, communication circuit, main control chip, drive circuit, and the visibility sensor passes through communication circuit and connects main control chip for to the visible data of main control chip transmission detection, main control chip passes through drive circuit and connects the camera lens fog-penetrating switch, is used for sending to the camera lens fog-penetrating switch and opens or close the signal, realizes optics fog-penetrating, and main control chip connects the video processing board, sends the electron fog-penetrating signal to the video processing board.

Further, the main control chip is connected with the whole machine control board through a joint J5.

Further, the communication circuit is an RS485 communication circuit and comprises a chip MAX3485, a visibility sensor is connected to the connector J2, the input end of the chip MAX3485 is connected to the connector J2, and the output end of the chip MAX3485 is connected to the main control chip.

Further, the driving circuit comprises a double-position double-power transceiver and a driving chip, a pin DIR of the double-position double-power transceiver is grounded, a port B is connected with the main control chip, a port A is connected with the input end of the driving chip, and the output end of the driving chip is connected with the lens fog-penetrating switch through a joint J3.

Further, the visibility sensor is a haze sensor.

The utility model has the beneficial effects that: the utility model relates to a lens fog-penetrating automatic opening system of a remote monitoring device, which is mainly applied to a remote visible light monitoring environment, and can automatically open the fog-penetrating function of the monitoring device when the visibility is low in a long-term unattended environment so as to improve the definition of a monitoring video.

Drawings

FIG. 1 is a schematic diagram of a main control chip and its peripheral circuits;

FIG. 2 is a schematic diagram of a junction J2 and a communication circuit;

fig. 3 is a schematic diagram of a driving circuit.

Detailed Description

Example 1

The technical solutions in the embodiments of the present utility model will be clearly and completely described below. The described embodiments of the utility model are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment discloses automatic opening system of long-range supervisory equipment camera lens fog, as shown in fig. 1, 2, 3, including visibility sensor, communication circuit, main control chip, drive circuit, the visibility sensor passes through communication circuit and connects main control chip for to the visible data of main control chip transmission detection, main control chip passes through drive circuit and connects the camera lens fog switch, be used for to the camera lens fog switch send open or close signal, realize optics fog, and main control chip connects the video processing board, send the electron fog signal that permeates to the video processing board, accomplish the electron fog that permeates through the video processing board. And the main control chip is connected with the whole machine control board through a joint J5.

In this embodiment, the visibility sensor uses the existing small-sized visibility sensor in the market, can detect the visibility and the particulate matter density in the air in real time, specifically can adopt the haze sensor, uses DC12V to supply power, and communicates with the main control chip through the communication circuit. In this embodiment, the communication circuit is an RS485 communication circuit, and includes a chip MAX3485, the visibility sensor is connected to the connector J2, an input end A, B of the chip MAX3485 is connected to the connector J2, and an output end RO, DI, DE, RE of the chip MAX3485 is connected to the main control chip.

In this embodiment, the driving circuit includes a dual-position dual-power transceiver U4 and a driving chip U3, where a pin DIR of the dual-position dual-power transceiver U4 is grounded, a port B is connected to the main control chip U1, a port a is connected to an input end of the driving chip U3, and an output end of the driving chip U3 is connected to the lens fog-penetrating switch through a joint J3. Pin DIR of dual-bit dual-power transceiver U4 is grounded, allowing data to be transferred from port B to port a, and then sent to the lens fog-penetrating switch through drive chip U3, connector J3.

The working process of the embodiment is as follows: when the visibility sensor detects that the visibility of the air is low, the visibility sensor sends visibility data to the fog-penetrating function main control chip U1 through the RS485 communication circuit, and the fog-penetrating function main control chip U1 judges whether the visibility is reduced to influence the quality of video images. And when the fog penetrating function main control chip judges that the video image quality is influenced, the fog penetrating function is started. And an optical lens signal is sent to the lens fog-penetrating switch through the driving circuit, so that the lens fog-penetrating switch starts a fog-penetrating function. Meanwhile, an electronic fog penetrating signal is sent to the video processing board through J4, so that the video processing board starts an electronic fog penetrating function, and the electronic fog penetrating is completed. And the main control chip is connected with the whole machine control circuit through the connector J5, so that whether the fog penetrating is started or not can be fed back to the whole machine control circuit, and the whole machine control circuit can also send a forced fog penetrating starting command to the main control chip for manually starting the fog penetrating function.

The embodiment realizes the communication between the system and other devices through 5 devices, specifically: j2, an RS485 communication interface of the visibility sensor and DC12V power supply; j3, communicating with a lens fog penetrating switch; j4, communicating with the video processing board and used for starting electronic fog penetration; and J5, communicating with a complete machine control circuit and used for manually starting the fog penetrating function.

In this embodiment, the lens fog-penetrating switch is turned on when the forward DC12V voltage is supplied to the lens fog-penetrating switch interface, and turned off when the reverse DC12V voltage is supplied to the lens fog-penetrating switch interface. The driving chip L293DD can provide forward and backward DC12V voltage, so that the driving chip L293DD is used for controlling the lens fog penetrating switch interface.

The foregoing description is only of the basic principles and preferred embodiments of the present utility model, and modifications and alternatives thereto will occur to those skilled in the art to which the present utility model pertains, as defined by the appended claims.

Claims (5)

1. A remote monitoring equipment lens fog-penetrating automatic opening system is characterized in that: the system comprises a visibility sensor, a communication circuit, a main control chip and a driving circuit, wherein the visibility sensor is connected with the main control chip through the communication circuit and used for transmitting detected visibility data to the main control chip, the main control chip is connected with a lens fog-penetrating switch through the driving circuit and used for sending an opening or closing signal to the lens fog-penetrating switch so as to realize optical fog penetration, and the main control chip is connected with a video processing board and used for sending an electronic fog-penetrating signal to the video processing board.

2. The automatic lens fog-penetrating opening system of the remote monitoring device according to claim 1, wherein: the main control chip is connected with the whole machine control board through a joint J5.

3. The automatic lens fog-penetrating opening system of the remote monitoring device according to claim 1, wherein: the communication circuit is an RS485 communication circuit and comprises a chip MAX3485, a visibility sensor is connected to the joint J2, the input end of the chip MAX3485 is connected to the joint J2, and the output end of the chip MAX3485 is connected to the main control chip.

4. The automatic lens fog-penetrating opening system of the remote monitoring device according to claim 1, wherein: the driving circuit comprises a double-position double-power transceiver and a driving chip, a pin DIR of the double-position double-power transceiver is grounded, a port B is connected with the main control chip, a port A is connected with the input end of the driving chip, and the output end of the driving chip is connected with the lens fog-penetrating switch through a joint J3.

5. The automatic lens fog-penetrating opening system of the remote monitoring device according to claim 1, wherein: the visibility sensor is a haze sensor.

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