As an important connection device in the industrial Internet of Things, the purchase process of wireless bridges requires careful consideration of multiple factors to ensure stable and efficient network connectivity in practical applications. The following are the essential features and transmission performance that engineers should pay attention to when purchasing wireless bridges, providing professional guidance for people who need to use networking applications.

1. Essential functions

Selection of operating frequency:

The operating frequencies of wireless bridges mainly include 2.4G and 5.8G. The 2.4G wireless bridge has good compatibility and diffraction capability, but its anti-interference performance is poor, making it suitable for use in environments with less interference. The 5.8G wireless bridge has stronger anti-interference ability and longer transmission distance, but its diffraction ability is poor, which is suitable for use in urban areas, busy streets and other environments with more interference. Therefore, when purchasing, it is necessary to select the appropriate operating frequency based on the actual application scenario.

Antenna type and gain:

Antennas are important accessories for wireless bridges, used to send and receive wireless signals. Omnidirectional antennas and directional antennas are two common types of antennas, with directional antennas having stronger signal transmission capabilities in specific directions. The larger the antenna gain, the better the performance of the wireless bridge, and the transmission distance and stability will be improved accordingly. Therefore, when purchasing, it is necessary to pay attention to the type and gain of the antenna to meet the actual transmission requirements.

Power supply mode:

Wireless bridges are mainly used outdoors, such as in remote areas such as reservoirs and forests, so special consideration needs to be given to the power supply method. Wireless bridges that support PoE power supply are more convenient, as they can transmit data and power simultaneously through network cables. For environments where power cannot be accessed, renewable energy sources such as solar or wind power can be used.

Security settings:

Wireless bridges need to set passwords or encrypt wireless signals to prevent unauthorized terminal access, which affects the security and stability of wireless monitoring transmission. When purchasing, it is necessary to pay attention to the security settings of the wireless bridge to ensure that it can meet the security requirements in practical applications.

2. Transmission Performance

Transmission distance:

The transmission distance of the wireless bridge is one of the factors that need to be considered when purchasing. Based on the actual application scenario, select the appropriate transmission distance range to ensure that the wireless bridge can achieve stable connection within the target area. Generally speaking, the transmission distance of wireless bridge can reach more than 50 kilometers, but the specific transmission distance will be affected by many factors such as environment, antenna gain, operating frequency and so on.

Transmission rate:

The transmission rate of the wireless bridge directly affects the efficiency and quality of data transmission. Common transmission rates include 150Mbps, 300Mbps, 450Mbps, 600Mbps, and 900Mbps. When purchasing, it is necessary to select the appropriate transmission rate based on the data transmission requirements in the actual application scenario.

Stability and reliability:

The stability and reliability of the wireless bridge are crucial to ensuring the quality of network connectivity. When purchasing, it is necessary to pay attention to the hardware quality, chip performance, memory cache and other parameters of the wireless bridge, as well as the quality control and testing process during the production process. At the same time, it is also necessary to consider the adaptability of the wireless bridge in harsh environments, such as waterproof, dustproof, heat-resistant and other properties.

Compatibility and scalability:

The wireless bridge needs to be compatible with other network devices to ensure the stability and reliability of the entire network system. When purchasing, it is necessary to pay attention to the compatibility and scalability of the wireless bridge to ensure seamless connection with other devices and meet the needs of future network expansion.

When purchasing a wireless bridge, it is necessary to consider multiple factors such as necessary functions and transmission performance to ensure stable and efficient network connectivity in practical applications. At the same time, it is also necessary to make customized choices based on actual application scenarios and requirements to meet the needs of networking applications in different scenarios.