CN111679534A

CN111679534A - Micro light source monitoring device

Info

Publication number: CN111679534A
Application number: CN202010085625.8A
Authority: CN
Inventors: 周世勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-09-18

Abstract

The invention discloses a low-light source monitoring device, which comprises a light emitting device; a constant current control type switch connected to the light emitting device; a signal capturing module connected to the electronic camera; a synchronization adjustment module connected to the signal acquisition module; and a frequency control module connected to the constant current control switch and the adjustment synchronization module for controlling the constant current control switch according to the working time of the light-emitting device, so that the light-emitting device can assist the illumination of the electronic camera. The electronic camera is an analog electronic camera and is additionally provided with an image server or is a digital electronic camera with a built-in image server. Therefore, the light-emitting device can be modulated at will according to different scene shooting environments, emits uniform, soft, non-dazzling, low-power-consumption micro white light without influencing the sight of human bodies, is used as auxiliary illumination of the electronic camera, and can clearly shoot images of white characters with red background and red characters with white background, and achieve high image quality effect and remote monitoring at night.

Description

Micro light source monitoring device

Disclosure of Invention

The main object of the present invention is to enable the light emitting device to be modulated at will and at any time according to different scene shooting environments, so as to emit uniform, soft, non-dazzling, non-influence human sight and low power consumption micro white light as auxiliary illumination for the electronic camera, so that the electronic camera can shoot common images, and can shoot images of white characters with red background and red characters with white background more clearly, and can realize high image quality effect and remote monitoring at night.

The secondary purpose of the present invention is to provide a low-light-level video recorder which can prevent crime, can be used as auxiliary lighting during video recording, does not affect the sight line due to dazzling and dazzling, and can save energy.

To achieve the above object, the present invention provides a monitoring device for micro-light source, which comprises: a light emitting device; a constant current control type switch connected to the light emitting device for stably controlling the constant current operation of the light emitting device; a signal capturing module connected to the electronic camera for capturing the vertical signal in the image signal generated by the electronic camera; a synchronization adjusting module connected to the signal capturing module for adjusting the operation time of the light emitting device to be synchronous with the vertical signal after receiving the vertical signal, and using the signal as an output signal; and a frequency control module connected to the constant current control switch and the adjusting synchronization module for receiving the output signal of the adjusting synchronization module, adjusting the working time of the light emitting device to 0.05-3 ms, and controlling the constant current control switch according to the working time (brightness time) of the light emitting device, so that the light emitting device can emit micro white light for assisting the illumination of the electronic camera.

Preferably, the light emitting device comprises a plurality of light emitting diodes connected in series.

Preferably, each LED emits infrared light and visible light.

Preferably, the signal capturing module may further be connected to a power conversion module.

Preferably, the power conversion module is connected with an alternating current power supply.

Preferably, the light source of the micro-white light is between 50 Hz-240 Hz.

Preferably, the electronic camera is a digital electronic camera with a built-in Video Server.

Preferably, the electronic camera is an analog electronic camera and an image server (video server) is disposed between the electronic camera and the signal acquisition module.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

1. the environment can be clearly monitored;

2. the lighting can be assisted;

3. it is more power-saving than the conventional method;

4. even if the monitoring is impossible, the electronic camera 2 cannot generate dark dead angles, and crimes can be effectively prevented;

5. the electronic camera has high image quality at night and can be remotely monitored through a network regardless of analog or digital.

Drawings

FIG. 1: is a schematic diagram of the basic structure of the present invention;

FIG. 2: the signal capturing module of the present invention receives the image signal of the electronic camera;

FIG. 3: it is a schematic view of another embodiment of the signal capturing module of the present invention for receiving the image signal of the electronic camera;

FIG. 4: a schematic diagram of the vertical signal for each field extracted by the signal of the present invention;

FIG. 5: the vertical signal modulation is consistent with the start time of the light-emitting device;

in the figure: 1. the system comprises a micro light source monitoring device 11, a light emitting device 111, a light emitting diode 12, a constant current control type switch 13, a signal acquisition module 14, an adjustment synchronization module 15, a frequency control module 2, an electronic camera 21, an image server 3, a power supply conversion module 4 and an alternating current power supply.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1 to 5, a micro-light source monitoring device 1 of the present invention is connected to an electronic camera 2 for use, and includes a light emitting device 11, a constant current control switch 12, a signal capturing module 13, an adjusting synchronization module 14, and a frequency control module 15.

The light emitting device 11 comprises a plurality of light emitting diodes 111 connected in series, and each light emitting diode 111 can emit infrared light and visible light.

The constant current control type switch 12 is connected to the light emitting device 11 for stably controlling the constant current operation of the light emitting device 11.

A signal capturing module 13 connected to the electronic camera 2 for capturing the vertical signal in the image signal generated by the electronic camera 2, wherein the signal capturing module 13 can be further connected to a power conversion module 3, and the power conversion module 3 is connected to an ac power source 4, and in this embodiment, the electronic camera 2 is a digital electronic camera 2 (as shown in fig. 1) with a Video Server 21(Video Server) built therein, which has more than one million pixels, because the digital electronic camera 2 has the Video Server 21 built therein, it can be remotely monitored through the network, but not limited to this, the electronic camera 2 can also be an analog electronic camera 2 and is additionally provided with a Video Server 21(Video Server) between the Video Server and the signal capturing module 13, and the Video Server 21 is used to convert the analog signal of the analog electronic camera 2 into a digital signal, which can then be remotely monitored over a network (as shown in fig. 3).

An adjusting synchronization module 14 is connected to the signal capturing module 13, and can adjust the operation timing of the light emitting device 11 to be synchronized with the vertical signal after receiving the vertical signal, and use the synchronized signal as the output signal.

A frequency control module 15 is connected to the constant current control switch 12 and the adjustment synchronization module 14, and is capable of receiving the output signal of the adjustment synchronization module 14, adjusting the operation time of the light emitting device 11 to 0.05 ms-3 ms, and controlling the constant current control switch 12 according to the operation time (brightness time) of the light emitting device 11, so that the light emitting device 11 can emit a micro white light for assisting the illumination of the electronic camera 2.

When the micro-light source monitoring device 1 of the present invention is powered on by the cooperation of the power conversion module 3 and the ac power source 4, the signal capturing module 13 starts to receive the image signal of the electronic camera 2 (as shown in fig. 2), and captures a vertical signal of each field (as shown in fig. 4) according to the signal, and then the adjusting synchronization module 14 receives the vertical signal, and adjusts the vertical signal to be consistent with the start time of the light emitting device 11 (as shown in fig. 5), so that the above working steps can make the image appear on the screen without flickering, but in order to further reduce the power consumption and achieve the purpose that the electronic camera 2 can reach the maximum brightness when working in a shutter time, at this time, the frequency control module 15 can be adjusted according to the shutter time, and the shutter working time is 1/60 seconds, 1/120 seconds, 1/250 s, 1/500 s-1/20000 s, the frequency control module 15 controls the light emitting device 11 between 0.05 ms-3 ms, and then gives the constant current control switch 12 according to the working signal of the range, the constant current control switch 12 is a working module for detecting the current, and the working current is set up first, when the signal of the frequency control module 15 is inputted into the constant current control switch 12 (when the working time of the frequency control module 12 is set up to be consistent with the shutter), the high level is assumed as the working level of the constant current control switch 12, the light emitting device 11 will start to emit light and work with the set constant current, the power consumption of the power source is the lowest, and the light emitting device 11 can emit light between 50 Hz-240 Hz and can be modulated arbitrarily and at any time according to the different scene shooting environments, and is soft and uniform, The micro white light without glaring and affecting the sight of human body is used as the auxiliary lighting of the electronic camera 2, so that the electronic camera 2 can shoot the general images, and can shoot the images of white characters with red background and red characters with white background more clearly, and can realize high image quality effect and remote monitoring at night.

In summary, the dim light source monitoring device of the present invention can effectively improve various disadvantages of the prior art, and can make the light emitting device capable of being modulated at any time according to different scene shooting environments to emit uniform, soft, non-dazzling, non-influence human sight and low power consumption of dim white light for the auxiliary lighting of the electronic camera, so that the electronic camera can shoot common images, and can more clearly shoot images of white characters with red background and red characters with white background, and can achieve high image quality effect at night and remote monitoring; moreover, the invention can be used as auxiliary lighting when people see the glimmer light to prevent crimes and record video, so that the invention does not dazzle and dazzle to influence the sight line and can achieve the effect of energy saving, thereby further making the invention more advanced, more practical and more in line with the requirements of consumers to use, and meeting the requirements of the patent application of the invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A micro-illuminant monitoring device, comprising:

a light emitting device;

a constant current control switch connected to the light emitting device for stably controlling the constant current operation of the light emitting device;

a signal capturing module connected to the electronic camera for capturing the vertical signal in the image signal generated by the electronic camera;

a synchronization adjusting module connected to the signal capturing module for adjusting the operation time of the light emitting device to be synchronous with the vertical signal after receiving the vertical signal, and using the signal as an output signal;

a frequency control module, which is connected to the constant current control switch and the adjustment synchronization module, and can receive the output signal of the adjustment synchronization module, adjust the working time of the light-emitting device to 0.05-3 ms, and control the constant current control switch according to the working time of the light-emitting device, so that the light-emitting device can emit micro white light for assisting the illumination of the electronic camera.

2. A micro-illuminant monitoring device according to claim 1, wherein said light-emitting device comprises a plurality of light-emitting diodes connected in series.

3. A microlight source monitor apparatus as claimed in claim 2, wherein each led emits both infrared and visible light.

4. The device as claimed in claim 1, wherein the signal capturing module is further connected to a power conversion module.

5. A micro-illuminant monitoring device according to claim 4, wherein said power conversion module is connected to an AC power source.

6. A micro-illuminant monitoring device according to claim 1, wherein said micro-white light source is between 50Hz and 240 Hz.

7. A micro-illuminant monitoring device according to claim 1, wherein said electronic camera is a digital electronic camera with a built-in image server.

8. A micro-illuminant monitoring device according to claim 1, wherein said electronic camera is an analog electronic camera and an image server is attached between said electronic camera and said signal capturing module.