JP7767226B2 - 3D surveillance and internet surveillance equipment - Google Patents

Description

This invention relates to a 3D surveillance and internet monitoring device that features an all-weather imaging unit and a lightweight, easily set-up packaged storage box, allowing for easy operation and installation anywhere, and is equipped with a motion sensor function, enabling remote monitoring via the internet.

The abnormal weather of the past few years, resulting from heavy rains and strong winds, has caused repeated damage to Japan's quays and coastlines, which are surrounded by the sea, and has led to an increase in seawall construction and dredging work in bays throughout the country. Of the 52 maritime accidents between 2008 and 2013, collisions between fishing boats and recreational boats and work vessels such as dredgers, pile drivers, soil transporters, tugboats, and push boats, which are used exclusively for these construction projects, accounted for 23% of the total (data from the Second Regional Coast Guard Headquarters). For this reason, visual surveillance is carried out by onboard fishing boats and other vessels stationed around work vessels, but the challenge is that it is not possible to deploy such vessels during the fishing season, even with the high daily allowances and fishing boat rental fees. Additionally, on-site offices and headquarters management departments are often located far from construction sites, and surveillance cameras are used to check the status of the construction site, but the weak radio waves used to transmit the images to remote offices can only transmit over a distance of around 100m, and while gigahertz communication bands allow for long-distance transmission, the transmitter and receiver must be facing each other, posing the issue of transmission being impossible if there are obstacles such as buildings or mountains between the transmitter and receiver. Meanwhile, with the development of digital technology, there are many web cameras on the market that can be easily connected to the internet, and they are being used in construction projects such as these, but they do not have weather protection or zoom functions such as wide-angle or telephoto, so it cannot be said that they are accurately capturing images of the work site.

Setting up internet communication equipment for high-performance industrial surveillance cameras was difficult, as it required specialized knowledge and skills. Furthermore, the construction work required a period of several months to a year at most, and many companies requested that the equipment be rented or leased for the duration of the work. There was also a demand for a motion sensor suitable for this type of work that would automatically detect any moving objects approaching the work site and output an alarm trigger to alert the operator. There was also a need for clear live video monitoring simultaneously from multiple locations, such as remote headquarters management departments and on-site offices, as this could help prevent accidents. There was also a strong demand for the development of a device that was inexpensive, easy to operate, and portable for on-site workers.

Japanese Patent Application Publication No. 3-209993 Japanese Patent Application Publication No. 4-68990 Japanese Patent Application Publication No. 6-351021 Japanese Patent Application Publication No. 7-38882 Japanese Patent Application Publication No. 9-229924 Japanese Patent Application Laid-Open No. 2002-171513 Japanese Patent Application Laid-Open No. 2004-72328 JP 2009-188964 A JP 2009-077359 A

(1) To capture images of outdoor work sites using a webcam that can easily connect to the Internet, it is necessary to adapt to changes in the natural environment, such as wind, rain, and temperature. For example, one method would be to install the webcam in an all-weather camera housing, but there are currently no all-weather camera housings for webcams available on the market. Furthermore, since the lens is fixed, it does not have wide-angle or telephoto zoom capabilities, making it impossible to monitor with the optimal angle of view. Furthermore, there are many issues, such as the lack of an automatic lens aperture function, which makes it difficult to ensure optimal images due to sudden changes in the external light outside, such as sudden changes in brightness or darkness.
(2) Some webcams are equipped with motion sensor functions and can be used to automatically detect moving objects approaching the work site, but their original specifications are intended to detect intruders indoors, and they are difficult to use outdoors unless measures to prevent false alarms are in place, as they may trigger false alarms due to changes in external light, rain, snow, birds, or small animals.In addition, although the motion sensor function of webcams senses an area, it does not have the function to set lines to indicate danger zones for approaching workboats, making it difficult to use them in the construction work in question.
(3) To select an industrial camera with superior functionality compared to a webcam, you must choose the pixel count, minimum subject illumination, automatic iris function, and varifocal lens that can be manually adjusted from wide-angle to telephoto. You must also prepare a weatherproof camera housing that connects the camera and lens with a mount and protects the camera and lens. You must also attach a pan head to adjust the housing forward, backward, left, and right, and a mounting bracket to secure it to a single pipe or other object. You must also prepare a dedicated coaxial cable of the appropriate size to connect the camera's video signal to a monitor TV or motion sensor depending on the distance. You must also select dedicated equipment to connect to the monitor TV, motion sensor, or Internet, and adjust the power voltage and video signal. You must also prepare a station or shed to house all of this equipment. Industrial cameras have traditionally been avoided because they require specialized knowledge and skills, including extensive technical research, to be used optimally. Before connecting, you must first research your carrier (Docomo, au, or Softbank), register, and pay the required fees.
(4) To optimize 3D monitoring using industrial cameras, cameras and lenses are important, but motion sensors must also have functions suitable for outdoor work sites, such as the ability to set the size and speed of moving objects to prevent false alarms. These special functions are not available commercially, so they must be developed and manufactured in-house, making it a challenge to possess the necessary technology.
(5) To capture images of work sites such as the relevant coastal construction work, the imaging unit must be installed in the optimal position, and the station or shed housing video equipment such as monitor televisions and remote monitoring communications equipment must be manually transported to the optimal location, requiring a lightweight and portable design. While commercially available portable security boxes or storage sheds are conceivable, they must be prepared according to the size of the equipment, and if several people are required to carry the equipment depending on its weight, the cost increases. To ensure that the equipment can be carried by a minimum of one person, the total weight, including the equipment, must be within the range of 10 to 20 kg. To achieve this, challenges arise, such as the need to select compact equipment, lightweight materials, and a portable design.
(6) Public works projects such as this one tend to last less than one year due to annual budget constraints, and optimal system equipment using industrial cameras is expensive, making it difficult to recover the investment if the construction period is less than one year. This is another issue, as there are many requests for rental or leasing only for the duration of the construction.
We must work to resolve the above issues.

In order to solve the above problems, the present invention provides a 3D surveillance and internet monitoring device as described in claim 1, which houses a CCD camera, varifocal lens, CS mount, cooling fan, and window glass with an anti-fog heater in an all-weather camera housing, captures images of the front and side using two No. 1 and No. 2 imaging units equipped with a camera platform and single-pipe fixing brackets, allows the user to set the required number of motion detection dots out of 14,336 on the front and side at the required positions using a mouse, and simultaneously issues an alarm when a moving object touches a motion detection dot on the front or side, enabling 3D surveillance and allowing live video monitoring from multiple remote locations simultaneously via the internet.

The 3D surveillance and internet monitoring device of claim 2 is the 3D surveillance and internet monitoring device of claim 1, characterized in that the coaxial cable for the CCD camera's video signal, motion sensor board, video encoder, mobile router, operation panel, mouse, terminal block, LCD TV monitor, power outlet, etc. are packaged and stored compactly in a lightweight, easy-to-carry, easy-to-operate, weatherproof storage box.

The 3D surveillance and internet monitoring device of claim 3 is the 3D surveillance and internet monitoring device of claim 2, characterized in that the operation panel has two sets of a power switch, mouse USB female connector, and motion sensor setting button, and the power switch, mouse operation, and motion sensor setting are performed in conjunction with the No. 1 imaging unit and the No. 2 imaging unit, respectively.

The 3D surveillance and internet monitoring device of claim 4 is the 3D surveillance and internet monitoring device of claim 2 or 3, characterized in that the motion sensor setting buttons consist of five buttons: an operation switch, an alarm switch, a menu item up/down switch, and a menu item button; and the mouse moves the cursor up/down/left/right on the LCD TV monitor screen, and the motion detection dots are 112 vertically and 128 horizontally on the LCD TV monitor, for a total of 14,336 dots, and can be called up with the mouse to perform writing, erasing, etc.

The 3D surveillance and internet monitoring device of claim 5 is the 3D surveillance and internet monitoring device of claim 3 or 4, characterized in that the menu items of the motion sensor setting button have the function of setting the size and movement speed of moving objects to be detected, and also has the function of displaying the date, time, construction site name, etc. on the LCD monitor screen.

The 3D surveillance and internet monitoring device described in claim 6 is a 3D surveillance and internet monitoring device described in any one of claims 1 to 5, characterized in that the CCD camera and varifocal lens are equipped with an automatic iris function that detects the brightness of external light using the CCD camera and adjusts the aperture of the varifocal lens to control the image to a constant brightness, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, allowing for the optimal angle of view to be obtained.

The 3D surveillance and internet monitoring device described in claim 7 is the 3D surveillance and internet monitoring device described in any one of claims 1 to 6, but requires a mobile router to connect to the internet in order to view live footage simultaneously on smartphones, PCs, tablets, etc. from multiple remote locations. It is also equipped with a small, lightweight video encoder that converts the analog video signal from the CCD camera into a digital video signal to supply a digital video signal. Furthermore, during 3D surveillance or standalone surveillance, the screen that triggers an alarm when a moving object touches a motion detection dot can be recorded for verification, helping to improve accident prevention.

As described above, this invention uses two CCD cameras with varifocal lenses housed in an all-weather camera housing to capture images of a work vessel at sea from the front and side. The motion sensor board that receives the surveillance camera video signals, the video encoder, and the mobile router are packaged compactly in a lightweight, easily transportable storage box. While viewing the monitor screen, motion detection dots are set on the front and side screens of the work vessel, enabling 3D surveillance that issues an alarm when motion detection dots on both screens detect an object simultaneously. By converting the surveillance camera's analog video signal into a digital video signal and connecting to the Internet via the mobile router, live video can be monitored simultaneously from multiple remote locations.

1 is a diagram showing the overall configuration of 3D monitoring, internet connection, etc. according to an embodiment of the present invention. FIG. 3 is an explanatory diagram of a motion sensor function according to the embodiment of the present invention. 1 is an image diagram of 3D surveillance according to an embodiment of the present invention; 3A and 3B are diagrams illustrating angles of view for different sizes of a varifocal lens according to an embodiment of the present invention. 10 is a diagram illustrating the size of dots and human detection at a point 300 m away using a 25 mm varifocal lens according to an embodiment of the present invention. FIG. 2 is an explanatory diagram of each part of an operation panel according to an embodiment of the present invention; FIG. 10 is a diagram illustrating an operation procedure of the motion sensor setting button according to the embodiment of the present invention. FIG. 10 is a table illustrating each setting button of the motion sensor setting button according to the embodiment of the present invention. 3 is a menu table of the motion sensor according to the embodiment of the present invention. 1 is a photograph with a number attached showing the top lid of a storage box according to an embodiment of the present invention closed. 1 is a numbered oblique photograph of a storage box according to an embodiment of the present invention with the top lid open. 1 is a bottom-down photograph of the storage box according to the embodiment of the present invention with the top lid open and the power on. 1 is a photograph of a mouse according to an embodiment of the present invention. 1 is a photograph with symbols of an operation panel according to an embodiment of the present invention. 1 is a photograph with reference numerals attached to a terminal block according to an embodiment of the present invention. 1 is a numbered photograph showing the top cover of the all-weather camera housing according to the embodiment of the present invention closed. 1 is a numbered photograph showing the top cover of an all-weather camera housing according to an embodiment of the present invention opened.

The 3D surveillance and internet surveillance device of the present invention will be described in detail below with reference to examples and drawings, photographs and tables.

In Figure 1, a high-performance industrial CCD camera E and varifocal lens F are connected with a CS mount G, and No. 1 imaging unit 1A, housed in an all-weather camera housing B, and No. 2 imaging unit 2A, which has the same specifications, capture images of the front and side of the work vessel 0 to perform 3D monitoring (also known as stereoscopic monitoring, but referred to as 3D monitoring in this case). The video signal is connected via No. 1 coaxial cable 7A and No. 2 coaxial cable 7B to No. 1 motion sensor board 6A and No. 2 motion sensor board 6B, housed in a lightweight aluminum storage box 3, via terminal block 3D.

The two boards are set using the No. 1 motion sensor setting button 3Aa and No. 2 motion sensor setting button 3Ab on the operation panel 3A. During setup, the monitor images are viewed on the No. 1 LCD television monitor 4A (4Aa is an enlarged screen of 4A) and No. 2 LCD television monitor 4B (4Bb is an enlarged screen of 4b) on the inside of the top lid of the storage box 3. The motion detection dots 5A and 5B are written and set using the mouse 3C to specify the setting position with the cursor. When a moving object simultaneously touches the motion detection dots 5A and 5B on both LCD monitors, an automatic 3D surveillance alarm is triggered and an alarm signal is output.

The analog video signals from the two boards are input to No. 1 Video Encoder 8A and No. 2 Video Encoder 8B, where they are converted into digital video signals that can be connected to the mobile router 9. The mobile router 9 then connects to the internet line 10, allowing live video to be viewed simultaneously in multiple locations via the internet line 10 on remote smartphones 11A, PCs 11B, and tablets 11C.

In Figure 2, when monitoring at sea, birds such as seagulls may fly in and touch the motion detection dots 5A and 5B simultaneously, causing a false alarm. Therefore, the five setting buttons, No. 1 motion sensor setting button 3Aa and No. 2 motion sensor setting button 3Ab, can be used to specify the size of the moving object to be detected using dot control, or to specify the speed of the moving object to be detected using sense control.

There are 112 dots vertically and 128 dots horizontally on the LCD TV monitors 4A and 4B, for a total of 14,336 dots embedded across the entire screen. Each dot is a motion detection dot that detects moving objects, and the mouse 3C is used to call out and write or erase the number of dots to place and where on the screen. The left mouse button writes a dot, and the right mouse button erases a dot that has been written. By moving the mouse up, down, left, and right, you can freely set the dots while viewing the No. 1 LCD TV monitor and No. 2 LCD TV monitor. The setting procedure is shown in Figure 7.

In Figure 3, for 3D monitoring, the intrusion alert area is an image of a rectangular box Z surrounding workboat 0, and motion detection dots 5A and 5B are drawn along the area with the mouse. When a fishing boat or recreational boat Y is imaged by only one imaging unit 1A, it touches the motion detection dot, and even though it is just in front of the Z rectangle and outside the alert area, a false alarm will be issued. If 3D monitoring is performed using two imaging units 2A, Y is outside the intrusion alert area and no alarm will be issued. When Y proceeds to point X, it will be within the area of both imaging units, so motion detection dots 5A and 5B will touch it simultaneously, triggering a 3D monitoring alarm.

In Figure 4, the varifocal lens F can change the angle of view by changing the focal length of the lens. For example, with a 12mm lens, the angle of view at 1000m is 493m vertical and 990m horizontal. With a 100mm lens, the angle of view at 1000m is 39m vertical and 79m horizontal. The ability to adjust the angle of view from wide angle to zoom with a single lens is an ideal feature for mobile construction sites like this one; without this feature, it would be necessary to prepare several fixed-focus lenses and change them to suit the angle of view, which would be a tedious task.

In Figure 5, using a lens focal length of 25 mm, at a distance of 300 m from the lens, the vertical width is 71 m and the horizontal width is 35 m, and the number of vertical motion detection dots is 112, so each vertical dot is approximately 69 cm, meaning that a person 170 cm tall would fit within two to three dots. People larger than one motion detection dot can be detected, but people contained within a smaller dot cannot be detected. However, by narrowing the angle of view, people become larger and can be detected. Changing the angle of view with the varifocal lens F does not change the size or number of motion detection dots, so the more dots there are, the better the accuracy of moving object detection. As explained above, the size of fishing boats or recreational boats Y approaching the work site and their distance from the imaging unit can be determined using Figure 4 or a formula.

In Figure 6, operation panel 3A is the same as in Photo 5, so will be explained here as well. Operation panel 3A is installed on the top surface of storage box 3 when the top lid is open, and the five motion sensor setting buttons 3Aa and 3Ab each perform the operations shown in Table 1. The button (li) for selecting the menu in Table 1 shown in Figure 8 has the menu items in Table 2, and its function has already been explained in Figure 2. Power switches 3Ae and 3Af control the power supply for all devices in the storage box, including the imaging unit. The USB male connector at the tip of mouse 3C is connected to mouse USB female connectors 3Ac and 3Ad according to the imaging unit 1A or 2A.

In Figure 7, by operating the mouse 3 and motion sensor setting buttons 3Aa and 3Ab, the menu settings can be controlled by turning the motion sensor ON/OFF switch OFF (Table 1), the alarm sound ON/OFF switch, the button to move up the menu, the button to move down the menu, and the button to select the menu. Once the menu is selected, the functions of the motion sensor (also referred to as the motion detection dot, but they are the same thing) can be set to suit the site conditions using the dot control (Table 2 shown in Figure 9) to set the size of moving objects detected by the motion sensor, the sensor vector to set the speed of moving objects detected by the motion sensor, the area control to set the cursor display of mouse movement on the LCD screen, the effect to set the text display on the LCD screen such as the date, time, and site name, and the return to return to the previous screen.

Photo 1 in Figure 10 shows the top lid of the storage box 3 closed, with two handles and snap locks 3b on the front, one handle, two coaxial cables and one power cable entering from the bottom left of the front, and the cable entry hole is waterproofed to prevent rainwater from entering.

Photo 2 in Figure 11 shows the storage box 3 with the top lid open and at an angle, with LCD TV monitors 4A and 4B, operation panel 3A, blind cover 3B, mouse 3C, handle 3a, and snap lock 3b installed.

Photo 3 in Figure 12 is a bird's-eye view of the storage box 3 with the top lid open and the blind cover 3B removed. The No. 1 LCD TV monitor 4A and No. 2 LCD TV monitor 4B are installed on the inside of the top lid. The two screens, arranged side by side to form a 3D screen, facilitate the setting of the motion detection dots 5B. An operation panel is installed on the top of the main unit, and the No. 1 motion sensor board 6A and No. 2 motion sensor board 6B are installed one above the other at the back right of the main unit, with the relay circuit board 6C for 3D monitoring installed. The No. 1 video encoder 8A and No. 2 video encoder 8B are installed at the back center, with the mobile router 9 installed below them, and a power outlet 7D and device connection cord next to them. A terminal block 3D is installed in the center of the inside front surface of the main unit. The actual dimensions of the box in Photo 3 are 780 mm wide, 380 mm high, and 400 mm deep. The weight of the box with the equipment stored inside is approximately 11 kg, making it portable enough for one person to carry. Handles on both sides make it easy to carry.

Photo 4 in Figure 13 shows that the mouse (the same pointing device used on a PC, etc.) can be moved up, down, left, and right on the LCD TV monitor, and the left switch writes motion detection dots, while the right switch erases the written motion detection dots, but the cursor must be displayed from the motion sensor setting button menu.

Photo 5 shown in Figure 14 is excluded as it was explained in Figure 6 above.

Photo 6 in Figure 15 is terminal block 6. The 3Da terminal is the No. 1 motion sensor independent alarm terminal, and the 3Db terminal is the No. 2 motion sensor independent alarm terminal, which are a contact, b contact, ab contact, and com contact, respectively. They can be used to connect devices such as rotating lights, alarms, and audio alerts. The 3Dc terminal is the alarm output terminal for 3D monitoring. 3Dd connects a BNC, PIN, or M type connector for the video input terminal of the coaxial cable connected to the imaging unit's CCD camera E. 3De is a video output terminal that can be used to view the video on a separate monitor TV or connect a recording device to record the video.

Photo 7 in Figure 16 shows all-weather camera housing B, with anti-fogging heater C installed on the glass window, eliminating the risk of the glass fogging up due to the temperature difference with the outside air and interfering with imaging. Camera platform H is a metal fitting that moves the camera up, down, left, and right, and single-pipe mounting bracket I is installed on-site after assembling all-weather camera housing B with single pipes. Mounting it on a tripod is not appropriate, as the tripod may sway or tip over in the wind.

Photo 8 in Figure 17 shows the top cover of all-weather camera housing B with the top cover open. The top cover has a double structure, and there is a space between the cover and the top cover of the main body that allows air to pass through, preventing the temperature inside the main body from rising even in direct sunlight. It also prevents the temperature inside the main body from dropping in winter. Even though the top cover has a double structure, if the temperature inside the main body exceeds 40°C, the electronic components used in the CCD camera E and varifocal lens F will not be able to operate at their rated capacity and will cause problems, so the cooling fan D is automatically operated by a thermostat, allowing it to be used in all weather conditions.

This invention can be used in the industrial field as a construction safety measure by adding a motion sensor to a surveillance camera to prevent collisions between fishing boats, recreational boats, and other outdoor work boats at sea, and connecting the related equipment to an internet line via a storage box that packages the equipment, enabling simultaneous monitoring from multiple locations.

0 Work boat 1A No. 1 imaging unit 2A No. 2 imaging unit B All-weather camera housing C Glass window defogging heater D Cooling fan E CCD camera F Varifocal lens G CS mantle H Manual pan head I Single pipe fixing bracket J Single pipe 3 Storage box 3a Handle 3b Snap lock 3A Operation panel 3Aa No. 1 motion sensor setting button 3Ab No. 2 motion sensor setting button 3Ac No. 1 mouse USB female connector
3Ad No. 2 mouse USB female connector 3Ae No. 1 power switch 3Af No. 2 power switch 3B Blind cover 3C Mouse 3D Terminal block 3Da No. 1 motion sensor independent alarm terminal 3Db No. 2 motion sensor independent alarm terminal 3Dc 3D alarm terminal 3Dd CCD camera 2 input/output connector 3De CCD camera 1 input/output connector 3Aa No. 1 motion sensor setting button 3Ab No. 2 motion sensor setting button 3Ac No. 1 mouse USB female connector 3Ad No. 2 mouse USB female connector 3Ae No. 1 power switch 3Af No. 2 power switch 4A No. 1 LCD TV monitor 4B No. 2 LCD TV monitor 4Aa No. 1 LCD TV monitor enlarged screen 4Bb No. 2 LCD TV monitor enlarged screen 5A Motion detection dot 5B Motion detection dot 6A No. 1 motion sensor board 6B No. 2 motion sensor board 6C Relay circuit board 7A No. 1 coaxial cable 7B No. 2 coaxial cable 7C Power cable 7D Power outlet 8A No. 1 video encoder 8B No. 2 video encoder 9 Mobile router 10 Internet line 11A Smartphone 11B Personal computer 11C Tablet X Point X: Fishing boats and leisure boats Y Point Y: Fishing boats and leisure boats Z Image enclosed in a rectangular box

Claims (15)

The CCD camera, varifocal lens, CS mount, cooling fan, and window glass with anti-fog heater are housed in an all-weather camera housing, and two No. 1 and No. 2 imaging units equipped with pan heads and single-pipe fixing brackets capture images of the front and sides. The required number of motion detection dots out of 14,336 can be set with a mouse at the required positions on the front and sides, enabling 3D monitoring that issues an alarm when a moving object touches a motion detection dot on the front or side. Live monitoring can be performed simultaneously at multiple remote locations via the Internet, and a coaxial cable for the video signal from the CCD camera is also installed. A 3D surveillance and internet surveillance device characterized in that CCD camera video signal equipment such as a motion sensor board, video encoder, mobile router, operation panel, mouse, terminal block, LCD TV monitor, and power outlet are packaged and stored compactly in a lightweight, easily transportable, and easily operated weatherproof storage box, and the operation panel has two sets of power switch, mouse USB female connector, and motion sensor setting button, and the power switch, mouse operation, and motion sensor setting are performed in conjunction with the No. 1 imaging unit and the No. 2 imaging unit, respectively.
In the 3D surveillance and internet monitoring device described in claim 1, the motion sensor setting buttons are composed of five buttons: an operation switch, an alarm switch, a menu item up move, a menu item down move, and a menu item; and the mouse moves the cursor up, down, left and right on the LCD TV monitor screen, and the motion detection dots are 112 vertically and 128 horizontally on the LCD TV monitor, for a total of 14,336, and can be called up with the mouse to write or erase.
In the 3D surveillance and Internet monitoring device described in claim 1 or 2, the menu items of the motion sensor setting button have the function of setting the size and movement speed of moving objects to be detected, and in addition, the 3D surveillance and Internet monitoring device has the function of displaying the year, month, date, time, and construction site name on the LCD monitor screen.
In the 3D surveillance and Internet surveillance device described in claim 3, the menu items of the motion sensor setting button have the function of setting the size and movement speed of moving objects to be detected, and in addition, the 3D surveillance and Internet surveillance device has the function of displaying the year, month, date, time, and construction site name on the LCD monitor screen.
2. The 3D surveillance and internet monitoring device according to claim 1 , wherein the CCD camera and varifocal lens have an automatic iris function that detects the brightness of external light with the CCD camera and adjusts the aperture of the varifocal lens to control the image to a constant brightness, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, thereby obtaining the optimal angle of view.
3D surveillance and internet monitoring device according to claim 2 , characterized in that the CCD camera and varifocal lens have an automatic iris function that detects the brightness of external light with the CCD camera and controls the image to a constant brightness by adjusting the aperture of the varifocal lens, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, thereby obtaining the optimal angle of view.
4. The 3D surveillance and internet monitoring device according to claim 3 , wherein the CCD camera and varifocal lens have an automatic iris function that detects the brightness of external light with the CCD camera and adjusts the aperture of the varifocal lens to control the image to a constant brightness, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, thereby obtaining the optimal angle of view.
5. The 3D surveillance and internet monitoring device according to claim 4 , wherein the CCD camera and varifocal lens have an automatic iris function that detects the brightness of external light with the CCD camera and adjusts the aperture of the varifocal lens to control the image to a constant brightness, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, thereby obtaining the optimal angle of view.
6. The 3D surveillance and internet monitoring device according to claim 5 , wherein the CCD camera and varifocal lens have an automatic iris function that detects the brightness of external light with the CCD camera and adjusts the aperture of the varifocal lens to control the image to a constant brightness, and the varifocal lens can adjust the angle of view from 5 mm to 100 mm, thereby obtaining the optimal angle of view.
In the 3D surveillance and internet monitoring device described in claim 1 , a mobile router is required to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and a small, lightweight video encoder is installed to convert the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal, and the 3D surveillance and internet monitoring device is characterized in that when a moving object touches a motion detection dot during 3D surveillance or standalone monitoring, the screen on which an alarm is issued can be recorded for verification, which helps to improve accident prevention.
In the 3D surveillance and internet monitoring device described in claim 2 , a mobile router is required to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and a small, lightweight video encoder is installed to convert the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal, and the 3D surveillance and internet monitoring device is characterized in that when a moving object touches a motion detection dot during 3D surveillance or standalone surveillance, the screen on which an alarm is issued can be recorded for verification, which helps to improve accident prevention.
In the 3D surveillance and internet monitoring device described in claim 3 , a mobile router is required to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and a small, lightweight video encoder is installed to convert the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal, and the 3D surveillance and internet monitoring device is characterized in that when a moving object touches a motion detection dot during 3D surveillance or standalone monitoring, an alarm is triggered and the screen can be recorded for verification, which helps to improve accident prevention.
In the 3D surveillance and internet monitoring device described in claim 4 , a mobile router is required to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and a small, lightweight video encoder is installed to convert the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal, and the 3D surveillance and internet monitoring device is characterized in that when a moving object touches a motion detection dot during 3D surveillance or standalone monitoring, the screen on which an alarm is issued can be recorded for verification, which helps to improve accident prevention.
In the 3D surveillance and internet monitoring device described in claim 5 , a mobile router is required to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and a small, lightweight video encoder is installed to convert the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal, and the 3D surveillance and internet monitoring device is characterized in that when a moving object touches a motion detection dot during 3D surveillance or standalone monitoring, an alarm is triggered and the screen can be recorded for verification, which helps to improve accident prevention.
The 3D surveillance and internet monitoring device of claim 6 requires a mobile router to connect to the internet in order to view live footage on smartphones, PCs or tablets at multiple remote locations simultaneously, and is equipped with a small, lightweight video encoder that converts the analog video signal of the CCD camera into a digital video signal in order to supply a digital video signal.The 3D surveillance and internet monitoring device is also characterized in that the screen on which an alarm is issued when a moving object touches a motion detection dot during 3D surveillance or standalone monitoring can be recorded for verification, which helps to improve accident prevention.