System and method for distributed standby power supply management based on LonWorks bus

A backup power supply and management system technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems of poor real-time communication, communication interruption, communication real-time and reliability reduction, etc., and achieve strong real-time monitoring , good reliability

Inactive Publication Date: 2013-04-03
CCTEG CHINA COAL RES INST
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Problems solved by technology

This is mainly because the monitoring host in the existing monitoring system still adopts the master-slave polling method when accessing the substations. A communication failure of a substation may easily lead to delays in data collection by subsequent substa

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  • System and method for distributed standby power supply management based on LonWorks bus
  • System and method for distributed standby power supply management based on LonWorks bus

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specific Embodiment 1

[0027] LonWorks bus is an open field bus based on distributed peer-to-peer communication without master. Each node in the network can send, receive and process network information independently without relying on other nodes.

[0028] The core of the LonWorks field bus is the Neuron (neuron) chip, which is a very large scale integrated circuit,

[0029] In this embodiment, the PL3120 chip is selected. The PL3120 chip integrates three CPUs, memory, and I / O interfaces, such as a media access processor, a network processor, and an application processor. It effectively integrates communication, control, and scheduling. and I / O functions.

[0030] Among the three 8-bit CPUs of the integrated chip PL3120 of the LonWorks bus, the first one is used to complete the functions of the first and second layers in the open interconnection model, called the media access control processor, and realizes the control and processing of media access .

[0031] The second is used to complete the ...

specific Embodiment 2

[0041] figure 2 It shows a flow chart of the steps of the distributed backup power management method based on the LonWorks bus in this embodiment. Such as figure 2 As shown, firstly, connect the backup power supply to the serial port in the LonWorks device. The neuron chip PL3120 collects the thermal and electrical parameters of the standby power supply through the serial port, such as figure 2 Step S101 in. Next, transfer these parameters to the LonWorks interface, such as figure 2 Step 102 in . Each monitoring substation repeats the above actions, and the parameter information of the backup power supply of each monitoring substation is actively sent from each LonWorks interface to a LonWorks bus, such as figure 2 In step 103, the simultaneous and parallel management of backup power supply information of multiple monitoring substations is realized in this way. The LonWorks bus sends all the information to the LonWorks interface of the signal converter, such as fi...

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Abstract

The invention discloses a system and a method for distributed standby power supply management based on a LonWorks bus. The system comprises an above-ground system and an underground system, the above-ground system comprises a monitoring host and a signal converter, the monitoring host is used for displaying finally integrated information, and the signal converter comprises a neuron chip PL3120 and a LonWorks interface. The underground system comprises the LonWorks bus, a plurality of monitoring substations, standby power supplies for the monitoring substations and a plurality of LonWorks devices, wherein the LonWorks devices are used for acquiring thermal-electric parameters such as the temperature, the electric quantity and the voltage of the standby power supplies and actively transmitting the acquired information to the LonWorks bus. The LonWorks bus is used for the standby power supply management system for a coal mine monitoring system, the standby power supplies for the monitoring substations can be simultaneously managed, and the problems of long data polling acquisition period and poor communication instantaneity when the number of substations is large or a communication data packet is large as a master-slave polling mode is adopted in existing bus communication technology are solved.

Description

technical field [0001] The invention relates to the field of backup power management systems, in particular to a backup power management system and method for a coal mine monitoring system. Background technique [0002] my country is a country that uses coal as its main energy source. Continuously improving the level of safety production technology in coal mines has always been the common goal of the party, government and industry. At present, most coal mines in my country have installed and used various coal mine safety monitoring systems, including: coal mine gas monitoring system, coal mine downhole personnel positioning system, signal collection and closing system, roof dynamic monitoring system, etc. These monitoring systems are usually installed in a distributed state. In the alley under the well. In order to ensure the operational reliability of these monitoring systems, each monitoring system can work normally and stably when the coal mine power grid fails, and each ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 王红尧王鹏温良叶锦娇贺玉凯孟庆勇李起伟魏峰李忠奎王喜胜张立亚苏珂嘉贾晓娣霍中刚姚永辉
Owner CCTEG CHINA COAL RES INST
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