Method and system for monitoring sensor access gateway

Abstract

The invention provides a method and a system for monitoring a sensor access gateway. The method includes: the server center obtains the physical address of the sensor access gateway it manages; the server center sends a query broadcast message to the sensor access gateway managed by it, and the query broadcast message carries the physical address of the sensor access gateway; After the access gateway receives the query broadcast message, if the physical address carried in the message matches its own physical address, it will carry its own state information in the query response message and send it to the server center; Obtain the status information of the sensor access gateway. The invention can ensure the monitoring of the sensor access gateway.

Description

technical field [0001] The invention relates to communication technology, in particular to a method and system for monitoring a sensor access gateway. Background technique [0002] The rapid development of micro-electro-mechanical systems, system-on-chip, wireless communication and low-power embedded technology has given birth to wireless sensor networks, and has brought a new era of information perception with its low power consumption, low cost, distributed and self-organizing characteristics. field change. [0003] see figure 1 , the wireless sensor network is composed of a large number of stationary or mobile sensors deployed in the monitoring area (such as figure 1 A wireless network consisting of the white circle in the middle). Use wireless sensor networks for data collection, and pass sensor data through access gateways (such as figure 1 (indicated by the black circle in the middle) is submitted to the server center, and the server center manages the wireless sen...

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Problems solved by technology

[0005] It can be seen from the above description that the current method of monitoring the sensor access gateway must be based on the IP address of the server center and the access gateway

At present, in the network, in order to effectively use IP addresses, devices often use dynamic IP addresses, that is to say, the IP addresses of server centers and sensor access gateways often change dynamically. If the IP address of any one of the devices changes, the other device cannot know it in time. For example, it is very difficult for the sensor access gateway to actively obtain the dynamically changing IP address of the server center, so heartbeat messages cannot be exchanged, and it cannot be realized. Monitoring of sensor access gateways

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