Airlock is installed below discharger under negative pressure, the outlet of upper accept discharged materials.Relying on the rotation of the impeller plays the role of conveying material, but also plays a role in sealing to prevent the pneumatic conveying air from the discharge port, to ensure the normal discharge of discharger. Rotary Airlock Valve,Air Lock,Machine Air Lock,Separation Of Gfq Air Lock XinxiangHexie Feed Machienry Manufacturing Co.Ltd , https://www.hxfeedmill.com
What are the advantages and disadvantages of 3G/4G wireless monitoring equipment in applications?
3G/4G wireless monitoring equipment is different from wireless bridges, COFDM wireless transmission equipment, analog wireless transmission equipment, which are three common transmission equipment. What unique advantages does it have?
First, 3G/4G wireless monitoring devices need not be the same as wireless bridges or analog wireless transmission devices. Transceivers must be aligned. Although COFDM can do this, COFDM has a very limited transmission distance. In particular, in some urban areas with severe obstructions and complicated environments, the transmission distance of COFDM can only reach several kilometers. The 3G/4G device can be limited by the environment and distance as long as it has a 3G or 4G signal. For China with a wide range of 3G/4G coverage, this kind of equipment is an advantage.
Moreover, China's 3G/4G signals are very stable, and the transmission rate is fast. The 3G/4G signals can deal with various emergency situations. Therefore, 3G/4G wireless monitoring devices are often used in emergency rescue and emergency communications.
Let me introduce to you the 3G/4G transmission equipment independently developed by Lean Technology.
Handheld Individual Soldier Wireless Transmission System LA-8640
The device is about the same size as an ordinary smart phone, but its main function is to capture audio and video and synchronize the data to a server on the Internet via a 3G/4G network. The administrator accesses the server to view the situation in real time or to issue a command to the person holding the terminal.
Applicable to *, *, *, security personnel and other people who need patrolling, law enforcement, handheld the device can reflect the scene in real time, as a data file stored in the server for future reference, can also be used as an online conference terminal.
LA-8640M 4G Mobile Emergency Video Transmission System
This is an integrated integrated emergency kit that integrates cameras, microphones, speakers, displays, controllers and other devices. When the equipment is used to reach the application site, a simple wireless monitoring system can be quickly deployed and the audio and video can be synchronized to servers on the Internet via a 3G/4G network for remote monitoring by management personnel.
4GLA-8780 million HD Car DVR
It is used in vehicles, can be stored locally, recorded, and uploaded to the server via a 3G/4G network. Applicable to all kinds of emergency command vehicles, multiple cameras transmit at the same time.
4G HD cloth control ball
LA-H91 4G 720P/1080P high-definition cloth control ball is a full-featured and easy-to-install wireless video emergency command integrated product. Ultra-high equipment integration, built-in high-performance lithium battery pack, with waterproof and shockproof features, can meet the special requirements of temporary deployment and rapid installation. When the task is performed, the equipment can be temporarily placed temporarily in the position to be monitored or directly adsorbed on the vehicle. When the task is completed, the equipment can be easily removed. It is suitable for field law enforcement, investigation and control, security and security, emergency command, emergency repair, and inspection. Management and other industrial applications, such as *, *, fire, *, *, transportation, courts, prisons, forestry, electricity, water conservancy, environmental protection and other units.
Of course, any equipment is not perfect and has many advantages that other equipment cannot match. It must also have its own limitations.
First, for 3G/4G signal requirements, where there is no 3G/4G signal, then 3G/4G devices are also useless.
Let's talk about its flow fee, objectively speaking, long-term use is also not a small overhead. For sites that require 24-hour monitoring, this is not a good idea. It is generally used in some emergency situations.