Low power consumption wireless local area network signal strength detection device and detection method

Abstract

The invention discloses a low power consumption wireless local area network signal strength detection device and detection method. The detection device comprises a control module, an input unit and a display unit. The control module is composed of a microprocessor and a radio frequency module. The microprocessor is connected with the input unit, the radio frequency module and the display unit. The input unit transmits an input interruption signal to the microprocessor; the microprocessor sends a network signal detection instruction to the radio frequency module; the radio frequency module broadcasts signal detection frames containing the MAC address of the detection device and transmits response frames returned by each zigbee node to the microprocessor; each zigbee node can receive the signal detection frames; and the microprocessor transmits the decimal value of a maximum RSSI value to the display unit. The device and the method have the advantages that it is unnecessary to network; an original zigbee network will not be interfered; the signal detection frames are sent in a broadcasting mode; each adjacent zigbee node will return one response frame; the network signal strength at the position of a to-be-deployed zigbee node is measured according to the maximum value of the RSSI; and the measurement is more objective and accurate.

Description

technical field [0001] The invention relates to a signal detection technology, in particular to a detection device and a detection method for the signal strength of a low-power wireless local area network. Background technique [0002] With the promotion of the Internet of Things and the intelligent industry, wireless communication technology has received extensive attention and development. Among them, the low-power wireless local area network, as the key technology of the interconnection of things at the bottom of the Internet of Things architecture, has been fully developed and improved, and has been widely used in smart home, industrial control and other fields. However, the stability of low-power wireless local area network communication is greatly affected by factors such as transmission distance and environmental noise, which poses challenges to the deployment of network nodes. Therefore, it is of great significance to study devices and detection methods that can det...

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Problems solved by technology

The detection device and detection method have the following problems: 1) the detection device is required to be connected to the network, which interferes with the topology of the original zigbee network; 2) the detection method is passive detection, and the coordinator or router must be allowed to actively send signals; 3 ) Since the zigbee network topology is flexible and self-organizing, the signal strength of the data frame from the nearest routing node cannot objectively represent the network environment of the location

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