CN210955052U

CN210955052U - Serial port converter

Info

Publication number: CN210955052U
Application number: CN201922433302.9U
Authority: CN
Inventors: 柯进疆; 张伟; 陈天麟
Original assignee: Shanghai Langji Technology Co ltd
Current assignee: Shanghai Langji Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-07
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a converter technical field specifically is a serial ports converter, including MCU, a power supply, power filter circuit, clock circuit, RS485 communication circuit, RS232 communication circuit, USB communication circuit, virtual channel, signal conversion circuit, the charactron, a drive circuit, keying circuit, TTL serial ports communication circuit, second drive circuit and relay, it prestores to go up the code more than the like product multi-thread, code send function under the line, more two way 5a relays than like product, control mode is more comprehensive, this product has multiple third party communication circuit, baud rate 2400-shaped 115200 multistage is adjustable, more many power conversion circuit than like product, when using this product, do not need the exclusive use adapter, reduce usage space and use step.

Description

Serial port converter

Technical Field

The utility model relates to a converter technical field specifically is a serial ports converter.

Background

The serial port converter is a communication interface converter for completing data conversion from RS-232/485/422 to TCP/IP. By serving as a server end, the data bidirectional transparent transmission between the serial port of the RS-232/485/422 terminal and a TCP/IP network is provided, the serial port-to-network function is provided, and the RS-232/485/422-to-network solution is provided. The serial device can be connected with the network immediately. The serial port converter in the prior art does not have a power conversion circuit, and when the serial port converter is used, an adapter is required to be used independently, so that the use space and the use steps are complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a serial ports converter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a serial port converter comprises an MCU, a power supply filter circuit, a clock circuit, an RS485 communication circuit, an RS232 communication circuit, a USB communication circuit, a virtual channel, a signal conversion circuit, a nixie tube, a first drive circuit, a key circuit, a TTL serial port communication circuit, a second drive circuit and a relay, the MCU is electrically connected with the power supply filter circuit, the power supply filter circuit is electrically connected with the power supply, the MCU is electrically connected with the clock circuit and the signal conversion circuit, the signal conversion circuit is electrically connected with the virtual channel, the MCU is electrically connected with the first drive circuit, the first drive circuit is also electrically connected with a nixie tube, the MCU is electrically connected with the key circuit, the MCU is electrically connected with the second drive circuit, and the second drive circuit is also electrically connected with a relay.

Preferably, the MCU is in signal connection with the RS485 communication circuit.

Preferably, the MCU is in signal connection with the RS232 communication circuit.

Preferably, the MCU is in signal connection with the USB communication circuit.

Preferably, the MCU is in signal connection with the TTL serial port communication circuit.

Compared with the prior art, the beneficial effects of the utility model are that:

1. compared with the similar products, the multi-line code pre-storage and off-line code sending functions are realized.

2. Compared with similar products, the control mode is more comprehensive due to the fact that the relay is provided with two paths of 5a relays.

3. The product has various third-party communication circuits, and the baud rate 2400 and 115200 sections are adjustable.

4. Compared with a multi-power conversion circuit of the same product, the multi-power conversion circuit does not need to use an adapter independently when the multi-power conversion circuit is used, and the use space and the use steps are reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. MCU; 2. a power source; 3. a power supply filter circuit; 4. a clock circuit; 5. an RS485 communication circuit; 6. an RS232 communication circuit; 7. a USB communication circuit; 8. a virtual channel; 9. a signal conversion circuit; 10. a nixie tube; 11. a first drive circuit; 12. a key circuit; 13. TTL serial port communication circuit; 14. a second drive circuit; 15. a relay.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, the present invention provides a technical solution:

a serial port converter comprises an MCU1, a power supply 2, a power supply filter circuit 3, a clock circuit 4, an RS485 communication circuit 5, an RS232 communication circuit 6, a USB communication circuit 7, a virtual channel 8, a signal conversion circuit 9, a nixie tube 10, a first drive circuit 11, a key circuit 12, a TTL serial port communication circuit 13, a second drive circuit 14 and a relay 15, wherein the MCU1 is electrically connected with the power supply filter circuit 3, the power supply filter circuit 3 is electrically connected with the power supply 2, the MCU1 is electrically connected with the clock circuit 4, the MCU1 is electrically connected with the signal conversion circuit 9, the signal conversion circuit 9 is electrically connected with the virtual channel 8, the MCU1 is electrically connected with the first drive circuit 11, the first drive circuit 11 is also electrically connected with the nixie tube 10, the MCU1 is electrically connected with the key circuit 12, the MCU1 is electrically connected with the second drive circuit 14, the second drive circuit 14 is also electrically connected with the relay 15, and the second drive circuit 14 uses an 8050 and an LE817, to effect actuation of the relay 15 and isolation of the signal.

In this embodiment, MCU1 and RS485 communication circuit 5 signal connection to the MAX485 chip is the core component, and MCU serial port 2 exports the RS485 signal as the input.

In addition, the MCU1 is in signal connection with the RS232 communication circuit 6, and is built with the MAX232 chip as a core, and the MCU serial port 2 is used as an input to externally output an RS232 signal.

Further, the MCU1 is in signal connection with the USB communication circuit 7, and is configured with a CH340 chip as a core, and the MCU serial port 2 is used as an input to externally output a USB signal.

Specifically, MCU1 and TTL serial port communication circuit 13 signal connection, when receiving the external storage instruction, signal conversion circuit can convert the instruction into TTL serial port signal, send MCU1 again to, MCU1 can judge and save to the corresponding sector in, when receiving the outside executive instruction, signal conversion circuit can convert the instruction into TTL serial port signal, send MCU1 again, MCU1 can judge and handle. And the processed data is sent to the corresponding communication circuit through the MCU serial port 2, when an external calling instruction is received, the signal conversion circuit converts the instruction into a TTL serial port signal and sends the TTL serial port signal to the MCU1, and the MCU1 judges and extracts the corresponding sector data and sends the sector data to the corresponding communication circuit through the MCU serial port 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A serial port converter is characterized in that: comprises an MCU (1), a power supply (2), a power supply filter circuit (3), a clock circuit (4), an RS485 communication circuit (5), an RS232 communication circuit (6), a USB communication circuit (7), a virtual channel (8), a signal conversion circuit (9), a nixie tube (10), a first drive circuit (11), a key circuit (12), a TTL serial port communication circuit (13), a second drive circuit (14) and a relay (15), wherein the MCU (1) is electrically connected with the power supply filter circuit (3), the power supply filter circuit (3) is electrically connected with the power supply (2), the MCU (1) is electrically connected with the clock circuit (4), the MCU (1) is electrically connected with the signal conversion circuit (9), the signal conversion circuit (9) is electrically connected with the virtual channel (8), and the MCU (1) is electrically connected with the first drive circuit (11), the first driving circuit (11) is further electrically connected with a nixie tube (10), the MCU (1) is electrically connected with the key circuit (12), the MCU (1) is electrically connected with the second driving circuit (14), and the second driving circuit (14) is further electrically connected with a relay (15).

2. The serial port converter according to claim 1, characterized in that: the MCU (1) is in signal connection with the RS485 communication circuit (5).

3. The serial port converter according to claim 1, characterized in that: the MCU (1) is in signal connection with the RS232 communication circuit (6).

4. The serial port converter according to claim 1, characterized in that: the MCU (1) is in signal connection with the USB communication circuit (7).

5. The serial port converter according to claim 1, characterized in that: the MCU (1) is in signal connection with the TTL serial port communication circuit (13).