mbus-based power supply communication device and method

A circuit and constant current charging technology, applied in the direction of data exchange through path configuration, data switch current source, data exchange details, etc., can solve the problems of large current consumption and transmission of data signals, impact, etc.

Active Publication Date: 2017-11-14
RUINA INTELLIGENT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems existing in the existing MBus-based power supply communication technology, and provide a new MBus-based power supply communication device and method. The problems to be solved include: avoiding the instantaneous consumption of MBus slave equipment The phenomenon of large current has an adverse effect on the transmission of data signals in MBus, and at the same time, it also provides high-voltage power for slave devices such as solenoid valves to meet their needs

Method used

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  • mbus-based power supply communication device and method

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Embodiment 1

[0020] Embodiment 1, an MBus-based power supply communication device.

[0021] The MBus-based power supply communication device of this embodiment is connected to both the slave device and the MBus at the same time, that is to say, the MBus-based power supply communication device of this embodiment is an interface device between the slave device and the MBus. After the slave device is connected to the MBus through the device of this embodiment, the slave device can realize MBus-based power supply and information communication.

[0022] An example of the structure of the MBUS-based power supply communication device in this embodiment is as follows: figure 1 shown.

[0023] figure 1 Among them, the power supply communication device based on MBUS in this embodiment mainly includes: MBus interface 100, modulation and demodulation circuit 110, rectification circuit 120, high voltage charging circuit 130, voltage conversion circuit 140, low voltage charging circuit 150, first ener...

Embodiment 2

[0042] Embodiment 2, a power supply communication method based on MBus.

[0043] The method of this embodiment mainly includes a data communication step and a rectification step, and the method of this embodiment further includes: at least one of the first power supply step and the second power supply step.

[0044] The data communication steps of this embodiment mainly include: demodulating the voltage pulse sequence in the MBus into a TTL level signal, and transmitting the demodulated TTL level signal to the slave device; The level signal is modulated into a current pulse sequence, and the modulated current pulse sequence is transmitted to the MBus. In addition, since a current is sucked in to realize signal modulation during the modulation process, this embodiment can use the current to charge the first energy storage unit 160 with a constant current during the modulation process.

[0045] The rectification step mainly includes: converting the non-polarity MBus signal in t...

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Abstract

The present invention relates to an MBus-based power supply communication device and method, wherein the device includes: a modulation and demodulation circuit for demodulating the voltage pulse sequence in the MBus into a TTL level signal and transmitting it to a slave device, and converting the slave device The TTL level signal of the device is modulated into a current pulse sequence and transmitted to the MBus; the rectifier circuit is used to convert the non-polar MBus signal into a 20-42V high-voltage DC signal; the high-voltage charging circuit is used to use the high-voltage DC signal as the first energy storage Unit constant current charging; the voltage conversion circuit is used to convert the high voltage direct current signal into a low voltage direct current signal not exceeding 5V; the low voltage charging circuit is used to use the low voltage direct current signal to charge the second energy storage unit with constant current; the voltage threshold control circuit is used to When the voltage of the second energy storage unit reaches the predetermined voltage threshold, the second energy storage unit is allowed to provide electric energy for the slave device. The invention improves the stability and reliability of MBus.

Description

technical field [0001] The invention relates to MBus technology, in particular to an MBUS-based power supply communication device and method. Background technique [0002] MBus (Meter Bus, instrument bus) is a new type of bus structure. Multiple MBus slave devices (also called substations or slave devices) are connected to MBus in parallel, and MBus uses two non-polarity transmission lines to simultaneously realize the power supply and communication of MBus slave devices. [0003] The inventor found in the process of realizing the present invention that: the MBus slave device will consume a large current instantaneously during operation and the like, if the MBus slave device consumes a large current instantaneously during the data signal transmission process of the MBus phenomenon, the phenomenon will adversely affect the data signal transmitted in the MBus. The existing MBUS power supply and communication technology not only cannot avoid this adverse effect, but also has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/10H04L12/40
Inventor 陈家培周到于大永
Owner RUINA INTELLIGENT EQUIP CO LTD
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