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MBUS host sending end circuit and data sending method

A transmitter and circuit technology, applied in electrical signal transmission systems, signal transmission systems, instruments, etc., can solve the problems of complex circuits, difficult maintenance, and cumbersome circuits at the data transmitter, achieving light weight, fewer test points, and simple circuits. Effect

Active Publication Date: 2011-02-09
LIERDA SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 achieved through circuits such as shaping filtering, comparison, and amplification. The circuit is cumbersome, complicated to debug, and difficult to maintain.

Method used

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  • MBUS host sending end circuit and data sending method
  • MBUS host sending end circuit and data sending method
  • MBUS host sending end circuit and data sending method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: with reference to attached figure 1 . The sending end circuit of the MBUS host computer, the control pin of the electronic analog switch circuit is connected to the serial port TX, and the two input pins are respectively connected to +24~+42V (change within the range of +24~+42V) and +14~+32V (the range of +14~+32V Internal change) power supply, output terminal connected to one end of the MBUS bus, the other end of the MBUS bus is grounded.

Embodiment 2

[0012] Embodiment 2: with reference to attached figure 1 and 2 . The electronic analog switch control pin is connected to one end of resistor R3 and the collector of transistor Q1, the emitter of Q1 is connected to one end of resistor R2 and grounded, the other end of R2 is connected to the base of Q1 and one end of resistor R1, and the other end of R1 is connected to the serial port TX , the input voltage of the other end of the resistor R1 is +5V~+15V, its logic “0”, the input voltage is -5V~-15V, its logic “1”; the output terminal of the electronic analog switch is connected to the MBUS bus through the resistor R4 One end of the MBUS bus is connected to one end of the capacitor C2, the negative pole of the diode D3, and the positive pole of the diode D4 through the fuse F1, and the other end of C2 is connected to the positive pole of the D3, the negative pole of D4 and the other end of the MBUS bus.

Embodiment 3

[0013] Embodiment 3: with reference to attached figure 1 and 3 . On the basis of Embodiments 1 and 2, the base of the electronic analog switch is connected to one end of resistor R1, the other end of R1 is connected to the base of transistor Q1, the emitter of Q1 is connected to ground in parallel with one end of resistor R2, and the other end of R2 Connect the negative pole of diode D2 and the +15V terminal of the power supply, the positive pole of D2 is connected to the positive pole of diode D1 and one end of resistor R4, the negative pole of D1 is connected to the collector of Q1 and one end of resistor R3 in parallel, and the other end of R3 is connected to the power supply +28V, One end of R1 is connected to the serial port TX, and the output end of the electronic analog switch is connected to one end of the MBUS bus through the resistor R4; one end of the MBUS bus is connected to one end of the capacitor C2, the negative pole of the diode D3, and the positive pole of t...

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Abstract

The invention relates to an MBUS host sending end circuit and a data sending method for collecting data of a water meter, a gas meter and a heat meter. An electronic analogical switching circuit contrThe invention relates to an MBUS host sending end circuit and a data sending method for collecting data of a water meter, a gas meter and a heat meter. An electronic analogical switching circuit control pin is connected with a serial port TX, two input pins are respectively connected with power supplies with the voltage of 24-42V and 14-32V, an output end is connected with one end of the MBUS andol pin is connected with a serial port TX, two input pins are respectively connected with power supplies with the voltage of 24-42V and 14-32V, an output end is connected with one end of the MBUS andthe other end of the MBUS is connected to the ground. The invention has the advantages of simple electrical circuit, less components, low cost, convenient testing and less testing points, easy maintenthe other end of the MBUS is connected to the ground. The invention has the advantages of simple electrical circuit, less components, low cost, convenient testing and less testing points, easy maintenance, and portable MBUS host; and the host of MUBS is smaller and lighter compared with the traditional hosts due to the simple electrical circuit.ance, and portable MBUS host; and the host of MUBS is smaller and lighter compared with the traditional hosts due to the simple electrical circuit.

Description

technical field [0001] The invention relates to an MBUS host sending end circuit and a data sending method used for data collection of water meters, gas meters and heat meters, belonging 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. The circuits are cumbersome, complicated to debug, and difficult to maintain. Contents of the invention [0003] Design purpose: Design purpose: In order to avoid the deficiencies existing in the background technology, design a kind of circuit structure is simple, debugging is simple, maintenance-free MBUS host computer sending end circuit and data sending method. [0004] Design scheme: In order to achieve the above design purpose. In the present invention, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C19/00
Inventor 梁源周连廷唐恩克尚锦慧贾灵
Owner LIERDA SCI & TECH GRP