Self-adapted sensor network of the network control platform based on the multi-protocol module structure

Abstract

The related adaptive sensor network control system based on multiprotocol communication embedded module structure is self diagnosis, self maintenance and self management. The architecture merges the advanced network and micro-structure software technology, forms the 'micro-structure sensing and controlling integration' mode, belongs to new running mode, new networking mode, and new theory application, and enables the sensor network replace computer network in many fields hopefully.

Description

1. Technical field: [0001] The invention relates to an adaptive sensor network technology based on a multi-protocol module structure network control platform, more specifically, relates to a network-centered sensor network control system based on a multi-protocol communication embedded module structure. 2. Background technology: [0002] Today, the existing sensor networks at home and abroad are basically in the early stages of development. Traditional sensors are based on analog signals, and their input and output mostly use 4-20ma, 0-10v, 0-5v, 1-5v , 2-10v and other standard analog current and voltage signals for sensor electrical measurement signal transmission, most of the sensors are used for single processing, the sensor is basically only used for the signal input of the control system, as a source of front-end information, subordinate to the control system It cannot be used as a system alone. Later, with the development of technology, smart sensors appeared. The smar...

AI Technical Summary

Problems solved by technology

[0005] 1. The analog power signal itself is used. After being transformed by the transmitter, it is often disturbed by various aspects during the transmission process, and the sensed power itself has a rough measurement index, and its accuracy and repeatability are subject to certain restrictions. It is also difficult to correct

Although many sensor technology workers have done a lot of research work, it is difficult to change the inherent defects of the analog quantity, which is susceptible to multiple interferences. In order to make up for these defects, a lot of research has been done on the sensor itself and the transmission cable of the sensing signal. For technical assurance work, various anti-interference technical measures and various precision measures and shielding measures have been carried out, which has greatly increased the cost of the sensor, resulting in the high price of various transmitters and converters today. Increase the cost of the entire control system

[0006] 2. In the control devices commonly used today, such as industrial control computer systems, PLC programmable controller systems, and single-chip intelligent control systems, centralized cabinet, centralized chassis, and control box installations are adopted, and the installation of sensors is distributed in each The installation of data collection points and actuators is also distributed at each control output execution point, and the connection between these centralized control cabinets, boxes, boxes and sensors and actuators is established by various control signal cables, sensors, and transmitter shielded cables. The connection relationship, such an installation structure causes the complexity of the on-site control cables, the increase in the repeated transmission of information, the increase in the cost of installation and construction, the inconvenience of maintenance and repair, and the overall cost is relatively high

[0007] 3. Today's traditional sensors and general intelligent transmitters cannot meet the requirements of today's highly developed network control technology, because today's industrial control and automation control have entered the era of network control, remote telemetry, remote viewing, Remote control, network control, these new control requirements put forward the demand for sensor with network transmission function

[0008] 4. Today's various control systems, due to the high concentration of control resources, increase the risk of control, and a small circuit failure may cause the paralysis and collapse of the entire system, thus making the system reliability, stability, and security and reduced degrees of freedom

The direct communication routing protocol means that the nodes communicate directly with the data aggregation point, which is only suitable for small-scale networks. When the number of nodes and the area radius increase, the energy consumption and mutual interference will be large, and the network life will be very short; the planar routing protocol The nodes in the network are all equal, so it is a multi-hop protocol. The nodes around the network convergence point have a short life due to the large amount of data communication, which affects the survival time of the entire network.

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