Long-distance wifi module microwave transmission scheme of an oilfield in the west
1 Overview
The oil field has a special working environment, the workplace is scattered, and is limited by the objective conditions of the geographical environment, so as to realize the video monitoring and communication of each workplace between the oil fields. The first problem is to overcome the constraints imposed by the geographical environment. It will be scattered among the workstations of dozens of square kilometers to establish an optical fiber communication network system, which not only costs a lot, but also requires a lot of manpower and capital for future line anti-theft and maintenance. With the maturity of wireless communication technology and the expansion of coverage, point-to-point (PTP), point-to-point (PMP) and mesh ad hoc network wireless microwave communication technologies have realized data communication, and made breakthroughs in various industries and fields. , equipment safety, oil production to achieve video monitoring, of great significance.
2. Design principles
Adopt advanced design concepts and select advanced network equipment to keep network applications technologically advanced in a certain period of time in the future.
2.1 The principle of openness
The long-distance wifi module network design and network equipment selection follow international standards and industrial standards, making the network highly open and technically compatible.
2.2 The principle of scalability
While fully considering the current situation, the network design must take into account the needs of future long-term business development and leave the possibility of upgrade and expansion. Make full use of the existing communication microwave resources to provide ample room for future expansion to higher speeds. On the other hand, we must also leave enough room for expanding the size of the network.
2.3 Security Principles
The design of the long-distance wifi module network system must follow the security principle to prevent various damages inside and outside the network. The implementation of the security principles is reflected in the following aspects:
1. The equipment adopts OFMD, MIMO, manufacturing technology, and has outstanding anti-interference and anti-multipath capabilities;
2. Adopt SLA service to provide more stable bandwidth for remote points;
3. Provide RF channel encryption;
4. Users can achieve higher security by setting up their own bridges or other independent encryption devices;
5. Security measures for authorization, authentication, control and auditing of resource access in the network: prevent users in the network from illegally accessing and destroying network resources.
2.4 Principles of reliability
The design of the long-distance wifi module network system must implement the principle of reliability, so that the network system has high availability. The principle of reliability is reflected in the following aspects:
1. Select a network with advanced technology and mature reliability;
2. The system gain reserve is high;
3. The link maintainability is good;
2.5 The principle of broadband anti-interference
In order to avoid mutual interference with the existing frequency, a single radio frequency unit of the long-distance wifi module can support the 4.9-6GHz frequency band, and the working frequency band can be reasonably divided according to the site conditions.
2.6 Manageability Principles
The network system should have good management capabilities, so that network managers can easily and timely grasp network topology, network performance statistics, network failures and other information, and simply configure and adjust the network to ensure that the network is in good condition.
The long-distance wifi module stabilizes outdoor wireless transmission, and has a radio transmission model verification certificate certified by the Ministry of Industry and Information Technology. Designed for harsh environment workplaces, it provides board-level waterproofing. Built-in 18dbi antenna, transmission bandwidth of 8km, stable at 100mbps.
The long-distance wifi module supports base station mode, point-to-point bridge mode, and user station mode. The cooperation between different modes can achieve different effects. It can carry out point-to-point transmission, point-to-point multi-point transmission, and automatic roaming switching transmission. Support 5MHz, 10MHz, 15MHz, 20MHz, 30MHz, 40MHz, 52MHz, 7 bandwidth modes to meet the requirements of different network transmissions.
Features of long-distance wifi module
Strong anti-interference ability: The software detects on-site radio frequency signals and sufficient frequency resources, improves the anti-interference ability, and has better performance in complex electromagnetic environments.
Support base station mode/user station mode/bridge mode/roaming mode
Fast roaming handover function: realize the fast roaming handover function of mobile clients and multiple fixed base stations
Stable transmission speed: support point-to-point, point-to-point transmission, the transmission speed is stable 100mbps
Support wireless signal scanning: support tools to scan surrounding frequency points, which is convenient for engineers to debug and install
Adjustable power: The transmit power is adjustable, up to 27dBm.
Seven working bandwidths: 5mHz, 10mHz, 15mHz, 20mHz, 30mHz, 40mHz, 52mHz, which is convenient for flexible matching in different working environments.
Customized development: According to different use environments, support customized development of product appearance to meet user needs.
