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Centralized power supply method implemented by aid of M-Bus (meter-bus)

A centralized power supply and m-bus technology, applied in the field of electronic information, can solve problems such as high requirements for waste battery disposal, increased equipment installation costs, and environmental pollution, and achieve low installation and maintenance costs, pollution-free use, and safe and reliable use.

Inactive Publication Date: 2012-10-03
迈拓仪表股份有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

When the battery is used for power supply, due to the limitation of the battery capacity, the battery must be replaced regularly for the instrument. At the same time, the disposal of waste batteries is relatively high, which is easy to cause pollution to the environment; when using an external DC power supply, it is required to have a corresponding power interface on the installation site, such as 220V Power sockets, etc., which increase the installation cost of the equipment

Method used

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  • Centralized power supply method implemented by aid of M-Bus (meter-bus)
  • Centralized power supply method implemented by aid of M-Bus (meter-bus)

Examples

Experimental program
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Effect test

Embodiment Construction

[0013] When the M-Bus master is in the non-communication state, the controller of the slave device turns on the step-down module to supply power to the power unit. Mainframe centralized supply.

[0014] When the M-Bus master needs to communicate with the slave device, the M-Bus master sends a series of downlink commands through the bus, requiring the controller of the slave device to turn off the step-down module, the power unit is in a low power supply state, and the large current is stopped. When used, the M-Bus host is in communication mode at this time, and all slave devices cannot operate with large currents, such as on-off of electronically controlled valves.

[0015] After the communication between the M-Bus host and the slave device is completed, a series of downlink commands will be sent to notify the controller of the slave device that the communication has been completed. The slave device turns on the step-down module to supply power to the power unit. Return to p...

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PUM

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Abstract

The invention relates to a centralized power supply method implemented by the aid of an M-Bus (meter-bus). The centralized power supply method is implemented by an M-Bus host and driven equipment connected with the M-Bus host, the driven equipment consists of a voltage reduction module, a communication module, a controller and an electric unit, the voltage reduction module can directly convert current outputted by the M-Bus host into working current of the electric unit so that the electric unit is driven, the communication module is used for communicating with the M-Bus host, and the controller is used for controlling operation of the voltage reduction module and operation of the electric unit. By the aid of the method, the driven equipment can be powered without a battery or an additional power source, the existing M-Bus is directly used for supplying power, installation and maintenance costs are low, and usage is safe, reliable and pollution-free.

Description

technical field [0001] The invention belongs to the technical field of electronic information, in particular to a method for using the bus of an M-Bus remote meter reading system to centralize power supply to slave devices in the system. Background technique [0002] M-Bus is a bus structure specially used for communication and transmission of public utility instruments. The full name is Meter-Bus, and M-Bus for short. [0003] The M-Bus instrument bus belongs to the local area network. Because of its low networking cost, reliable communication and convenient maintenance, it has been widely used to connect remote monitoring computers and workstations, measuring instruments and other equipment for resource sharing and data transmission. Its communication protocol and The interface has been specified in detail in CJ / T 188-2004, and it is a mature communication structure. [0004] The devices connected to the M-Bus remote meter reading system (such as electronic water meters,...

Claims

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Application Information

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IPC IPC(8): H04L12/10
Inventor 孙卫国
Owner 迈拓仪表股份有限公司
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