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Analog quantity remote collecting and alarming system

A technology of remote acquisition and alarm system, applied in simulators, transmission systems, signal transmission systems, etc., can solve the problems of complex data processing, poor real-time performance, and high equipment costs

Inactive Publication Date: 2018-11-30
FUZHOU ZHUNDIAN INFORMATION TECH CO LTD
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Problems solved by technology

[0004] The detection of TW A CS signals is mainly based on time-domain difference technology. Most of these methods have complex data processing, poor real-time performance, and high equipment costs. In order to determine whether the signal bit is "1" or "0", due to the rigor of the calculation, the interference signal will seriously affect the judgment result of the detected signal, so the original method is difficult to apply in our country

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  • Analog quantity remote collecting and alarming system
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Embodiment Construction

[0052] The block diagram of the circuit structure of an analog remote acquisition and alarm system is as follows: figure 2 shown. Includes centralized controller and multiple measuring instruments. The centralized controller is composed of a signal sending terminal A, a signal receiving terminal B, a network interface module 2 , a keyboard display module 10 and a microcontroller module 1 . The measuring instrument is composed of a signal sending end A, a signal receiving end B, a sensor 7 and a microcontroller module 1 . The centralized controller communicates with the measuring instruments using the power line. The main station is the computer management system located on the top layer, which is composed of routers and computers.

[0053] The hardware structure of the signal sending end A, the signal receiving end B of the power line communication in the centralized controller and the measuring instrument, the microcontroller module 1 and the power supply module 4 are the...

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Abstract

The invention relates to an analog quantity remote collecting and alarming system for collecting and remote transmission of various physical quantities. Measuring instruments upload measured data to centralized controllers in a power line communication mode, each measuring area is provided with one centralized controller. The measuring instruments in the measuring areas conduct synchronous sampling preserving through an ADC, the centralized controllers are connected into the internet through a network interface module, thus the centralized controllers are networked with a remote computer management system of a master station, and conduct alarming to the remote system when the measured data exceed the limit.

Description

(1) Technical field: [0001] The invention relates to an analog quantity remote acquisition and alarm system, which includes a centralized controller and various measuring instruments, and uses a power line communication method to send a wide pulse signal to a specific point in the grid cycle voltage crossing 0 area to generate a sudden change current, so that the grid cycle carries information. The centralized controller receives the data collected by each measuring instrument, and connects to the Internet through the network interface module integrated with the TCP / IP hardware protocol stack, so that computers and handheld mobile devices can be used to access the remote computer management system. (two) background technology: [0002] Current power line communication mainly refers to power line carrier communication and two-way power frequency communication. Power line carrier communication PLC uses the existing power line to transmit signals through carrier wave. However,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G01R19/25
CPCG01R19/2509G05B19/042G05B19/0423G05B2219/21137G05B2219/25033G05B2219/25257G08C19/00G08C19/22G08C19/24H04B3/546H04Q2209/823
Inventor 张金木
Owner FUZHOU ZHUNDIAN INFORMATION TECH CO LTD
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