CN219145526U - Meter reading bus interface circuit based on USB serial port - Google Patents
Meter reading bus interface circuit based on USB serial port Download PDFInfo
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- CN219145526U CN219145526U CN202223567672.XU CN202223567672U CN219145526U CN 219145526 U CN219145526 U CN 219145526U CN 202223567672 U CN202223567672 U CN 202223567672U CN 219145526 U CN219145526 U CN 219145526U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model relates to a meter reading bus circuit structure based on a USB serial port, which comprises a USB serial port module, a working power supply module, an MBUS bus power supply module and a signal driving module. The utility model adopts the signal modulation circuit to realize MBUS bus signal driving, and the product is provided with the MBUS power supply booster circuit, thereby meeting the working mode of a USB serial port power supply. The designed product has small volume and low power consumption, greatly reduces the manufacturing and maintenance cost, and is suitable for debugging and monitoring of projects such as self control and monitoring of an MBUS bus instrument.
Description
Technical Field
The utility model relates to the technical field of meter reading bus MBUS bus communication, in particular to an MBUS bus interface circuit structure based on USB serial port driving.
Background
Currently, in various field bus application fields, particularly in the application fields of fire alarm, three meter centralized meter reading and the like, an MBUS bus is generally adopted, and the system has the advantages of stable communication and simple construction. The reliability of communication of the MBUS bus is guaranteed, but the reliability and stability of the line interface circuit with complex structure and high cost cannot meet the application of a field complex environment.
Disclosure of Invention
Because of the characteristics of the MBUS bus, the specifications of working power supplies and driving power supplies are different, the structure of a product on the market is complex, the number of peripheral modules of the product is large, and the on-site use is inconvenient. Unnecessary trouble is brought to the work of debugging and maintenance personnel.
Aiming at the defects in the prior art, the utility model provides a meter reading bus interface circuit based on a USB serial port, which solves the problem of inconvenient debugging and maintenance of the field environment in the prior art. The portable plug-and-play portable socket has the advantages of strong function, convenience in carrying and use, simple interface, no installation, plug-and-play, safety and reliability.
According to the design scheme provided by the utility model, the utility model relates to a meter reading bus circuit structure based on a USB serial port, which comprises a USB serial port module, a working power supply module, an MBUS bus power supply module and an MBUS signal driving module. The utility model adopts the signal modulation circuit to realize MBUS bus signal driving, and the product is provided with the MBUS power supply booster circuit, thereby meeting the working mode of a USB serial port power supply.
A meter reading bus interface circuit based on a USB serial port comprises a USB serial port module, a working power supply module, an MBUS signal driving module and an indication circuit module. The signal ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the MBUS bus signal driving module, so that bidirectional communication is realized. The USB serial port module is connected with the indicating circuit, and the ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the indicating circuit.
The power supply system comprises a working power supply module, and is characterized by further comprising an MBUS power supply module connected with the working power supply module, wherein the MBUS power supply module comprises an input end of a boosting and voltage stabilizing circuit, the input end of the boosting and voltage stabilizing circuit is connected with the output of the working power supply module, and an output end of the MBUS power supply module is connected with a corresponding port of the MBUS signal driving module for supplying working power for an MBUS signal driving mode.
Preferably, the MBUS power module includes a boost regulator SGM6601 and a peripheral circuit connected to the SGM 6601.
Further, the boost voltage stabilizer can also adopt LMR64010 and LM2733, and has better expansion.
Preferably, the USB serial module includes a USB serial module CH340E and an external circuit connected to the USB serial module CH 340E.
Further, the USB serial port module can also adopt FT232RL, CP21XX.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has novel and reasonable design and simple structure, adopts the universal USB serial port power supply to realize the automatic modulation of the equipment working power supply and the MBUS bus power supply, and realizes the bidirectional communication signal transmission with the universal USB serial port. The designed product has small volume and low power consumption, and greatly reduces the manufacturing and maintenance cost.
Drawings
FIG. 1 is a diagram of a USB serial port module;
FIG. 2 is a block diagram of an operating power supply;
FIG. 3 is a block diagram of an MBUS power supply;
FIG. 4 is a schematic diagram of an MBUS signal driving module;
fig. 5 is a block diagram of an indication circuit.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and technical schemes, and embodiments of the present utility model will be described in detail by means of preferred examples, but the embodiments of the present utility model are not limited thereto.
Referring to fig. 1-5, according to the design scheme provided by the utility model, the utility model relates to a meter reading bus circuit structure based on a USB serial port, which comprises a USB serial port module, a working power supply module, an MBUS bus power supply module and a sabs signal driving module. The utility model adopts the signal modulation circuit to realize MBUS bus signal driving, and the product is provided with the MBUS power supply booster circuit, thereby meeting the working mode of a USB serial port power supply.
A meter reading bus interface circuit based on a USB serial port comprises a USB serial port module, a working power supply module, an MBUS signal driving module and an indication circuit module. The signal ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the MBUS bus signal driving module, so that bidirectional communication is realized.
The USB serial port module is connected with the indicating circuit, and the ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the indicating circuit, so that the working state of the circuit can be conveniently observed and judged in use.
The signal modulation of the MBUS signal driving circuit adopts an operational amplifier U4, a sampling resistor R17, a transistor Q1 and a bidirectional voltage stabilizing tube ZD1, so that voltage modulation of signal transmission and current modulation of a signal catcher are respectively realized, and bidirectional communication is realized.
The utility model has novel and reasonable design and simple structure, adopts the universal USB serial port power supply to realize the automatic modulation of the equipment working power supply and the MBUS bus power supply, and realizes the bidirectional communication signal transmission with the universal USB serial port. The designed product has small volume and low power consumption, and greatly reduces the manufacturing and maintenance cost.
The working power supply circuit comprises an ME6211C33 voltage stabilizer and a peripheral circuit connected with the voltage stabilizer, and has low cost and stable work.
The power supply system is characterized by further comprising an MBUS power supply module connected with the working power supply module, wherein the MBUS power supply module comprises an input end of the boosting and voltage stabilizing circuit, the input end of the boosting and voltage stabilizing circuit is connected with the output of the working power supply module, and the output end of the MBUS power supply module is connected with a corresponding port of the MBUS signal driving module for supplying working power for an MBUS signal driving mode.
The MBUS power supply module comprises a boost voltage stabilizer SGM6601 and a peripheral circuit connected with the SGM 6601. The boost voltage stabilizer can also adopt LMR64010 and LM2733, and has better expansion.
The USB serial module comprises a USB serial module CH340E and an external circuit connected with the CH 340E. The USB serial port module can also adopt FT232RL and CP21XX.
The utility model is not limited to the above-described embodiments, and a person skilled in the art may make various modifications thereto, but any equivalent or similar modifications as the utility model are intended to be included within the scope of the claims of the present utility model.
Claims (5)
1. A meter reading bus interface circuit based on a USB serial port comprises a USB serial port module, a working power supply module, an MBUS signal driving module and an indication circuit module; the method is characterized in that: the signal ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the MBUS bus signal driving module, so that bidirectional communication is realized; the USB serial port module is connected with the indicating circuit, and the ports CH_RXD and CH_TXD are respectively connected with corresponding ports of the indicating circuit.
2. The USB serial port based meter reading bus interface circuit of claim 1, wherein: the power supply system comprises a working power supply module, and is characterized by further comprising an MBUS power supply module connected with the working power supply module, wherein the MBUS power supply module comprises an input end of a boosting and voltage stabilizing circuit, the input end of the boosting and voltage stabilizing circuit is connected with the output of the working power supply module, and the output end of the MBUS power supply module is connected with a corresponding port of the MBUS signal driving module for supplying working power for an MBUS signal driving mode.
3. The USB serial port based meter reading bus interface circuit of claim 2, wherein: the MBUS power supply module comprises a boost voltage stabilizer SGM6601 and a peripheral circuit connected with the SGM 6601; the boost regulator may also employ an LMR64010, LM2733.
4. The USB serial port based meter reading bus interface circuit of claim 1, wherein: the USB serial module comprises a USB serial module CH340E and an external circuit connected with the CH 340E.
5. The USB serial port based meter reading bus interface circuit of claim 4, wherein: the USB serial port module can also adopt FT232RL and CP21XX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223567672.XU CN219145526U (en) | 2022-12-31 | 2022-12-31 | Meter reading bus interface circuit based on USB serial port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223567672.XU CN219145526U (en) | 2022-12-31 | 2022-12-31 | Meter reading bus interface circuit based on USB serial port |
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| CN219145526U true CN219145526U (en) | 2023-06-06 |
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| CN202223567672.XU Active CN219145526U (en) | 2022-12-31 | 2022-12-31 | Meter reading bus interface circuit based on USB serial port |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748936A (en) * | 2024-02-19 | 2024-03-22 | 成都麦特斯科技有限公司 | Low-power consumption boost system |
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2022
- 2022-12-31 CN CN202223567672.XU patent/CN219145526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748936A (en) * | 2024-02-19 | 2024-03-22 | 成都麦特斯科技有限公司 | Low-power consumption boost system |
| CN117748936B (en) * | 2024-02-19 | 2024-04-26 | 成都麦特斯科技有限公司 | Low-power consumption boost system |
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