Circuit at M-BUS host sending end and data sending method

Abstract

The invention relates to a circuit at an M-BUS host sending end used for data collection of a water meter, a gas meter and a heat meter and a data sending method. The input end of a power supply chip The invention relates to a circuit at an M-BUS host sending end used for data collection of a water meter, a gas meter and a heat meter and a data sending method. The input end of a power supply chipis connected with a voltage source, the output end thereof is connected with an MBUS, an opposite ground end is connected with one end of a voltage control circuit I, the other end of the voltage contis connected with a voltage source, the output end thereof is connected with an MBUS, an opposite ground end is connected with one end of a voltage control circuit I, the other end of the voltage control circuit I is connected with one end of a voltage control circuit II and one end of a control switch, the other end of the voltage control circuit II is connected with the other end of the controlrol circuit I is connected with one end of a voltage control circuit II and one end of a control switch, the other end of the voltage control circuit II is connected with the other end of the controlswitch and earthed, and the control end of the control switch is connected with a serial port TX. The circuit at an M-BUS host sending end and the data sending method have the advantages that: firstlyswitch and earthed, and the control end of the control switch is connected with a serial port TX. The circuit at an M-BUS host sending end and the data sending method have the advantages that: firstly, the circuit is simple and has few elements and components and low cost; secondly, testing is convenient and testing points are few; thirdly, maintenance is convenient; and fourthly, the circuit is p, the circuit is simple and has few elements and components and low cost; secondly, testing is convenient and testing points are few; thirdly, maintenance is convenient; and fourthly, the circuit is portable. Due to the simple circuit, the MBUS host is smaller and lighter than the traditional one.ortable. Due to the simple circuit, the MBUS host is smaller and lighter than the traditional one.

Description

technical field [0001] The invention relates to an M-BUS host sending end circuit and a data sending method used for data collection of water meters, gas meters and heat meters, and belongs to the field of intelligent building control and the like. Background technique [0002] At present, the circuit of the data sending end of the traditional MBUS host is relatively complicated. Generally, the voltage modulation on the MBUS bus must be realized through circuits such as shaping filtering, comparison, and amplification. There are disadvantages such as cumbersome circuits, complicated debugging, and difficult maintenance. Contents of the invention [0003] Design purpose: In order to avoid the deficiencies in the background technology, design a M-BUS master transmitter circuit and data transmission method with simple circuit structure, simple debugging and no maintenance. [0004] Design scheme: In order to achieve the above design purpose, the present invention connects the...

AI Technical Summary

Problems solved by technology

[0002] At present, the circuit of the data sending end of the traditional MBUS host is relatively complicated. Generally, the voltage modulation on the MBUS bus must be realized through circuits such as shaping filtering, comparison, and amplification. There are disadvantages such as cumbersome circuits, complicated debugging, and difficult maintenance.

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