With the development of wireless technology, wireless monitoring is becoming more and more popular in our lives. As far as parking lots, communities, elevators, factories, reservoirs, and forests, wireless monitoring can be seen. Social security plays an irreplaceable role. Therefore, the requirements for wireless monitoring in different places are also different. Let's take a look at the application of wireless monitoring in different occasions.
1. Small-scale application for civilian use
At present, the wireless monitoring system applied in the civilian field is mostly used in small areas such as office places and factory areas, mainly based on WLAN and WiFi networks. In these built buildings, if wired monitoring is used, it may cause damage to the original building, and it is necessary to dig, embed, etc., so it is not convenient to use traditional wired monitoring. According to Tiandi Weiye Chen Hongxu, this kind of mode is simple, only a wireless router can be used for transmission, and there is no network surcharge. In some areas where monitoring is required, the video is transmitted in this way. It is a better way.
However, this type of application has a limited range of applications, and the transmission distance can reach 200 meters in a completely unobstructed open space. Video transmission can also be achieved in buildings that are close together, but the transmission quality is relatively affected and needs to be improved.
2, self-built wireless network applications
In the forest fire prevention, remote mountainous areas, oil fields, scenic areas, power, water conservancy, environmental protection and other large-scale, long-distance fixed point monitoring applications, the use of wireless monitoring is a better solution. In such applications, due to the wide range, remote location, and difficulty in wiring, if the traditional wired monitoring method makes the line laying and maintenance cost very high, it is generally recommended to use wireless monitoring, such as microwave.
The construction cost of the wireless network is generally limited by the distance and the number of base stations. There are also the costs of the one-time investment and the later maintenance, but the bandwidth is guaranteed and the image quality is good, which can meet the requirements of remote monitoring. Therefore, some insiders said that the industry's self-built wireless network should be a public construction facility, and the government's investment is more reasonable.
3. Use the carrier network
Operators such as mobile, telecommunications and China Unicom will provide some wireless transmission networks, such as 2.75G and 3G. It can be applied to various applications that require wireless monitoring applications, such as bus vehicle monitoring, taxi monitoring, subway high-speed rail monitoring and other application areas. Such applications typically lease a carrier network, which is characterized by a very wide range of space, as long as the area reached by the operator network is available. However, it needs to pay a certain rental fee to the operator every month, and the current price is relatively expensive, and the bandwidth and transmission rate also need to be further improved.
Wireless monitoring equipment also needs a targeted control solution in the construction of the site. If you have wireless monitoring and transmission requirements, you can pay attention to Tengyuan Zhituo. Our sales customer service will provide you with the most basic site distribution. Application requirements, geographic environment and other data, and immediately generate a wireless monitoring solution for customers.
The gear-type divider can separate flow into two or more paths. A gear divider consists of a housing, two or more internal sections of mating gears, and barriers that separate the sections from one another. A common shaft connects the gear sections. Flow enters one end of the housing and routes through a channel to each of the gear sections. Fluid forces act on the gear teeth, causing them to rotate in opposite directions. Fluid between the gear teeth and housing is carried around to the opposite side of the gear section. As the teeth mesh, fluid is pushed out of each outlet port.
Because all the gear sections are connected, all the gears rotate at the same speed. The positive displacements of the gear sections produce a constant division of the flow. Inlet flow is divided proportionally between each section. Even if pressures in the output circuits vary, the output flows are proportional to the input. Should the input flow vary, output flows will likewise vary proportionally. And if one output is blocked, the others are also blocked. A relief valve prevents pressure intensification.
Series QXT Flow Dividers from Bucher Hydraulics are internal gear units that can divide a flow into as many as four parts. Division ratios are constant and are unaffected by external loads. They can be used to synchronize movement of unequally loaded cylinders, or they can drive several hydraulic motors at the same speed.
Gear-type dividers can also be used to combine return flow in circuits. Most spool dividers are not designed to permit reverse flow.
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