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Data transmission method for industrial detection system

A data transmission method and detection system technology, which is applied in the field of industrial detection, can solve the problem of low collection frequency and achieve the effect of ensuring real-time performance and taking power consumption into account

Active Publication Date: 2013-12-11
BEIJING LOIT TECH
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Problems solved by technology

[0005] However, wireless sensor networks need to balance the information collection frequency and battery life. Most of the wireless sensors used at this stage that can be powered by batteries for a long time have the defect that the collection frequency is too low. Therefore, it is necessary to improve the existing technology. Improving the Information Collection Frequency of Wireless Sensor Networks

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  • Data transmission method for industrial detection system
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Embodiment Construction

[0028] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0029] Industrial detection systems often require high-precision real-time monitoring of slowly changing environmental information such as temperature and humidity. Considering the service life of the battery, the existing industrial detection system adopts a detection data transmission scheme that generally adopts a sleep-transmission-sleep mechanism to reduce power consumption during sleep. In this data transmission scheme, the sampling period is on the order of seconds, and some data can only be sent once every few minutes, and there is no way to record the change process in the middle.

[0030] Industrial inspection systems also often need to monitor the vibration...

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Abstract

The invention discloses a data transmission method for an industrial detection system, which efficiently transmits the acquired data to an upper computer. The data transmission method comprises the following steps of: dividing initial data acquired by a sensor into a low-speed change signal and a high-speed change signal; if the change value of the sampling result exceeds a preset signal change threshold, immediately transmitting the low-speed change signal; and for the high-speed change signal, determining the natural frequency of detection equipment, converting the sampling result to a frequency domain for frequency domain analysis, extracting an amplitude near a natural frequency component, and if the change value of the amplitude exceeds a preset amplitude change threshold, immediately transmitting the stored high-speed signal compression data. The data transmission method guarantees the real-time property for reporting the data acquired by a sensor network, has the advantages in the aspects of power consumption and transmission efficiency, and is particularly suitable for a low-power consumption wireless sensor network.

Description

technical field [0001] The invention relates to industrial detection technology, in particular to a data transmission method of an industrial detection system. Background technique [0002] In the field of industrial control, field bus, industrial Ethernet and wireless communication technology have been developed successively. The existing industrial monitoring system can be divided into two types: wired and wireless according to the type of sensor. [0003] The industrial detection system composed of wired sensors is a technology developed in the early stage and gradually developed to the present. This kind of system often drives a set of fieldbus, which consumes a lot of power and requires professional wiring. If a fault such as a short circuit occurs in the signal line in a harsh environment, it is difficult to troubleshoot. [0004] The industrial detection system composed of a large number of wireless sensors through wireless communication has a very wide range of appl...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/048H03M7/30
CPCY02B60/50
Inventor 樊勇黄孝斌魏剑平邹涛
Owner BEIJING LOIT TECH
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