The video doorbell sold on the market is usually a wired transmission. If your home has been renovated, it is generally difficult to arrange video and audio cables. Here, you can use the ultra-small wireless sound image transmission system to display the sound and image of the door through the TV. The mini-camera can be installed in the appropriate position on the gate with sound monitoring function. The wireless AV transmitter can transmit the signal. The wireless AV receiver can send the received sound and image signal to the AV input socket of the TV set. When you hear the doorbell, just switch the TV to the AV status and you can see the person coming from the doorway and hear his voice. You can also purchase a 4-inch or 5-inch LCD monitor for monitoring. LCD screens have true color TFTs and pseudo-color SNTs. The price of pseudo-color is very low and there is a dynamic tailing phenomenon. If the image changes rapidly, it will be blurred, mainly because the dynamic response time is long, and the pseudo-color type is not suitable for display. TV screen or VCD, but the general security monitoring of the image change is not intense, with pseudo-color monitoring can be described as inexpensive. True-color images have bright colors, wide viewing angles, no dynamic tailing, and better performance. However, the performance of different true color LCD screens is also very different, mainly the perspective and color reproduction and other issues, we must see!
Second, the model's super-view remote control
The ultra-small wireless sound image transmission system can add a pair of bright “electronic eyes†to the high-end remote control model to realize super-view remote control. Because the entire device is very small in size and power consumption, it can be easily added to the car model or ship model. Internally, the power supply can be shared with the model's control power supply. With a mini-monitor you can just leave the bed and drive the car model to another room to see if there is any movement? Or drive the boat to the center of the lake and see where the little animals are. Or mount it on a remote control helicopter and look down at the city you know from high altitude.
Third, wireless mobile video forensics system
Since April 1, 2002, the court used the evidence of videotaping, which was not recognized by the court before. Therefore, wireless mobile video forensics systems have great practical value. If the video output signal of the wireless audio image transmission device receiver is sent to a small-scale home video recorder, the dual functions of monitoring and recording can be realized. Most commercially available compact video recorders are digital 8mm video recorders. Note that models with analog video/audio input and output must be selected. Most of these compact video recorders have 2.5 to 4 inch LCD screens, monitor images can be displayed through the display screen, and video recording functions can be used to record the images tracked by the ultra-miniature wireless transmitters, which greatly improves security and forensics. effect. Currently, there are many types of small-size digital video recorders available on the market, most of which are portable, such as DCRTRV410E, 310E, 210E, 110E, CCDTRV66E, and DCR-TRV900E. Although the above models are smaller in size, they are much larger than the ultra-miniature cameras, and their concealment and mobility are limited. The entire system requires two people to cooperate with each other for transmitting and receiving operations. At the same time, the distance between two people is always within the actual effective range of wireless transmission and reception. This allows users to roam the tracking target for real-time monitoring and accurately capture video and audio recordings according to their needs. This is not only suitable for In the field of security, it can also be used for various scientific investigations and other occasions that require the follow-up monitoring of the flow.
Fourth, high altitude surveillance
If the miniature camera and the image radio transmission device are moored on a hydrogen balloon or a helium balloon, high-altitude surveillance can be performed over a long period of time. A far-reaching target can be seen, and image monitoring that cannot be completed in other ways can be performed in a large-scale assembly and on the water surface. .
V. Wireless image anti-theft alarm system for vehicles
The vibration displacement sensor plus coded remote control circuit and wireless transmission system can form a practical anti-theft image monitoring system, which has great market potential.
Six, remote control concealed surveillance system
Ultra-micro pinhole camera with micro-transmitter equipped with a suitable rechargeable battery can form a wireless monitoring device, if you use the remote control circuit to remotely control the power of the transmitter device can achieve long-term monitoring at any time, the above device can be easily put In plush toys, surveillance can be hidden and it is very versatile.
Seven, wireless "Babe" monitoring treasure
This is a product that has become quite common abroad. It is mainly used to monitor the baby's every move. Even foreigners do not sleep with adults.
VIII. Anti-theft security
The use of pyroelectric, microwave induction, infrared sensors can be easily designed anti-theft security circuit, but by the electronic component itself and the impact of the external environment will inevitably lead to false alarm. If the alarm sensor alarm at the same time, open the wireless video transmission system, the use of the camera to the scene of the voice, images immediately transmitted to the duty room, the watchman will immediately confirm whether the real alarm, if it is night can also open high-power infrared night vision Lights expose criminals.
This system has several advantages:
1. Immediately confirm when the alarm is true
2. To prevent the security personnel from being in direct contact with offenders and to protect personal safety 3 . You can call the police without alarming the criminals and catch the criminals. Can use fewer security personnel to achieve multi-point security monitoring
Nine, industrial robot vision system
Some industrial robots are required to be able to enter the equipment for maintenance and measurement, and the internal image of the equipment needs to be transmitted to the outside for monitoring and remote control. For example, oil pipeline weld detection robots, engine endoscopic robots, and explosives robots, etc. Can use wireless audio transmission system to achieve.
Ten, Aerial Viewing System
If you want to take a picture of a city, it would be very expensive to rent a helicopter for aerial photography. If you use an aerial model to shoot, then the cost will be greatly reduced. The images seen by the camera will be transmitted to the ground through high-power wireless video and audio transmission equipment. Above, the camera or camera can be started at any time if the image is satisfactory.
Brushless DC fans are usually available at three nominal voltages: 12V, 24V and 48V. If the system has regulated power supply in one of these, then a brushless DC Fan may be selected which will give the exact performance required, regardless of the AC input variables which plague AC fans.
Because the speed and airflow of a typical Dc Fan is proportional to the voltage supplied, a single product may be used to meet different applications by setting the supply voltage to what will give the desired airflow.
The voltage range that may be applied to the fan to assure satisfactory operation is dependent upon the individual fan design and may be as small as 10-14V for 12V units and up to 12-56V for 48V units.Because brushless DC fans has many advantages, such as energy saving, stepless speed regulation, quiet and long life, it has been widely applied in many new building projects, and is gaining more and more recognition and favor from the market.
Product show
Product description
Feature:
1.energy saving
2.stepless speed regulation
3.quiet and long life
Specification:
Model
Bearing
Rated voltage(v)
Rated current
(A)
Rated
Nominal speed
(RPM)
Air flow
(CFM)/(m^3/min)
Air pressure
Noise
(dB)
Weight(g)
FS5015
sleeve/ball
5/12/24
0.08~0.35
0.75~3.60
3500~5000
3.75~5.55
0.10~0.15
5.15~7.35
0.20~0.28
28~33
30
FS5020
sleeve/ball
5 /12
0.09~0.35
0.65~2.64
3500~5500
3.5~6.5
0.09~0.18
11.85~23.56
0.46~0.92
32~43
33
FS6015
sleeve/ball
5 /12
0.09~0.35
1.08~2.64
3800~5500
3.8~6.8
0.10~0.19
12.35~24.50
0.48~0.96
35~45
32
FS7530
sleeve/ball
12/24
0.2~0.45
2.40~8
2500~3500
9.18~12.55
0
7.55~10.03
0
33~42
85
FS9733
sleeve/ball
12/24
0.25~0.8
4.20~13.2
2000~3200
15.05~26.33
0.42~0.73
6.23~10.88
0.24~0.43
35~52
95
FS12032
sleeve/ball
12/24
0.28~1.0
5.88~19.2
1600~2300
18.88~33.01
0
8.82~15.41
0
45~55
198
Imput
power(W)
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Brushless DC Fans
Brushless DC Fans,12V Brushless DC Fans,24V Brushless DC Fans,Axial Brushless DC Fans
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