CN210867733U

CN210867733U - Portable RS _232 data wireless transparent transmission system and equipment

Info

Publication number: CN210867733U
Application number: CN201922048117.8U
Authority: CN
Inventors: 赵润榕
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-26
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a portable RS _232 data wireless pass-through system, including power supply module, the voltage stabilizing module who is connected with power supply module, be connected with voltage stabilizing module and be used for carrying out wireless connection's wireless module, be connected with wireless module and be used for carrying out the switching module of being connected with the second external equipment with first external equipment. The utility model discloses a portable RS _232 data are wireless passes system and equipment through only need be connected with arbitrary external equipment electricity, again with other external equipment wireless connection, can realize the RS232 communication between the equipment to pass through between the equipment the utility model discloses a portable RS _232 data are wireless passes system through realizes that RS _232 data are wireless passes through, has solved the weak point of connecting through the physics cable between the equipment among the traditional art.

Description

Portable RS _232 data wireless transparent transmission system and equipment

Technical Field

The utility model relates to a network communication technical field, in particular to portable RS _232 data wireless pass through system and equipment.

Background

The RS _232 standard interface, also called EIARS _232, is one of the commonly used serial communication interface standards. In serial communication, both communication parties are required to adopt a standard interface, so that different devices can be conveniently connected for communication, and RS _232 is the most common serial communication interface at present.

The traditional mode that USB changes RS _232 line is generally used in the debugging of RS _232 serial ports, and the RS _232 port between the equipment is established and connected through the physical cable, and is poor to on-the-spot physical environment adaptability in the use, often appears the cable and is not long enough or the cable is too long and so on awkward problem, and traditional USB changes RS _232 line and carries not convenient enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve prior art's not enough, provide a system and equipment are passed through to portable RS _232 data is wireless.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

a portable RS-232 data wireless transparent transmission system comprises a power supply delivery module, a voltage stabilizing module connected with the power supply delivery module, a wireless module connected with the voltage stabilizing module and used for being in wireless connection with first external equipment, and a switching module connected with the wireless module and used for being connected with second external equipment. Among the above-mentioned technical scheme, external power source passes through the power supply transport module and gives the utility model discloses a system power supply, voltage stabilizing module converts power supply into the steady voltage of exporting to wireless module, and wireless module passes through switching module second external equipment communication connection, and wireless module still with first external equipment wireless connection, the event only needs to be with the utility model discloses a portable RS _232 data wireless pass through transmission system is connected with arbitrary external equipment electricity, again with other external equipment wireless connection, can realize the RS232 communication between the equipment to first external equipment passes through with second external equipment the utility model discloses a portable RS _232 data wireless pass through transmission system realizes that RS _232 data is wireless pass through, has solved the weak point of connecting through the physics cable between the equipment among the conventional art.

Preferably, the voltage stabilizing module comprises a low dropout regulator connected with the power supply delivery module and a voltage stabilizing capacitor connected with the low dropout regulator.

Preferably, the voltage stabilizing capacitor includes a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4 connected to the low dropout linear regulator, the first capacitor C1 and the second capacitor C2 are respectively connected to a Vin terminal and a GND terminal of the low dropout linear regulator, the third capacitor C3 and the fourth capacitor C4 are respectively connected to a Vout terminal and a GND terminal of the low dropout linear regulator, the first capacitor C1 and the second capacitor C2 are connected in parallel, and the third capacitor C3 and the fourth capacitor C4 are connected in parallel. In the above technical solution, the low dropout regulator includes the AMS1117_3.3 regulator, and the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, and the AMS1117_3.3 regulator convert the power supply into a 3.3V regulated voltage output to the wireless module, thereby increasing the stability of the system circuit. The capacitance values of the first capacitor C1 and the third capacitor C3 are both 10 microfarads, and the capacitance values of the second capacitor C2 and the fourth capacitor C4 are both 0.1 microfarads.

Preferably, the wireless module comprises an ESP _01 module connected with the low dropout regulator, and the Vout terminal of the low dropout regulator is connected with the VCC terminal of the ESP _01 module. In the above technical scheme, the Vout end of the low dropout linear regulator outputs 3.3V to the ESP _01 module, and the ESP _01 module releases a WIFI signal after being powered on to connect with a first external device. The wireless module is not limited to the ESP _01 module, and an ESP _01S module may be used.

Preferably, a first resistor R1 and a second resistor R2 are further connected between the low dropout regulator and the ESP _01 module, one end of each of the first resistor R1 and the second resistor R2 is connected to Vout of the low dropout regulator, and the other end of each of the first resistor R1 and the second resistor R2 is connected to the EN end and the RST end of the ESP _01 module. In the above technical solution, the first resistor R1 and the second resistor R2 are used as pull-up resistors and set the input of the EN terminal and the RST terminal to high levels, respectively, and the resistances of the first resistor R1 and the second resistor R2 are both 10k ohms.

Preferably, the switching module comprises a 3Pin connector connected with the ESP _01 module, and the TXD end and the RXD end of the ESP _01 module are respectively connected with any two interface ends of the 3Pin connector. In the above technical solution, the TXD end and the RXD end of the ESP _01 module are respectively connected to any two interface ends of the 3Pin connector, and the GND end of the ESP _01 module is connected to the other interface end of the 3Pin connector. When the second external device uses the RS232 interface for communication, the TXD end and the RXD end of the ESP _01 module are used as UART interfaces and are connected with an external TTL to RS232 module through a 3Pin connector at a TTL level of 3.3V, the external TTL to RS232 module is connected with an RS232 port of the second external device, and the connection can use a DB9 interface, so that the communication connection between the ESP _01 module and the second external device is realized. When the second external device is used for TTL level communication, the TXD end, the RXD end and the GND end of the ESP _01 module are directly and sequentially connected with TTL, RDX and GND of the second external device through the 3Pin connector, and the TTL-to-RS 232 module is not required. When first external equipment carries out data communication with the second external equipment, the second external equipment through the TXD of switching module and ESP _01 module, RXD, GND end with data transmission extremely the utility model discloses a system, the utility model discloses a system passes through ESP _01 module with data transmission extremely with ESP _01 module establish wireless connection's second external equipment, vice versa to realize the data communication between first external equipment and the second external equipment.

Preferably, the voltage delivery module comprises a USB interface. Among the above technical scheme, external power source can be conveniently right through USB interface connection the utility model discloses a system supplies power, and external power source can adopt the treasured that charges, also can adopt the USB interface etc. that external equipment reserved.

Preferably, the VCC terminal of the USB interface is connected to the Vin terminal of the low dropout regulator. Among the above technical scheme, external power source passes through the USB interface and originally is novel system connection, and the VCC end output 5V voltage of USB interface converts 5V voltage into 3.3V voltage through voltage stabilizing module, and 3.3V voltage output supplies power to ESP _01 module at last.

The utility model also provides a portable RS _232 data is wireless passes through equipment, pass through the system, be used for the installation including a portable RS _232 data is wireless pass through the shell of system. In the technical scheme, the portable RS _232 data wireless transparent transmission system is integrated into the shell, and the shell is provided with the mounting hole of the USB interface, so that the portable RS _232 data wireless transparent transmission equipment is convenient to carry and use at any time.

The utility model has the advantages that:

the utility model discloses a portable RS _232 data are wireless passes system and equipment through only need be connected with arbitrary external equipment electricity, again with other external equipment wireless connection, can realize the RS232 communication between the equipment to pass through between the equipment the utility model discloses a portable RS _232 data are wireless passes system through realizes that RS _232 data are wireless passes through, has solved the weak point of connecting through the physics cable between the equipment among the traditional art.

Drawings

Fig. 1 is a schematic diagram of module connection of the portable RS _232 data wireless transparent transmission system of the present invention;

fig. 2 is a schematic circuit connection diagram of the portable RS _232 data wireless transparent transmission system of the present invention;

fig. 3 is a schematic structural diagram of the portable RS _232 data wireless transparent transmission device of the present invention;

fig. 4 is a schematic circuit diagram of the TTL to RS232 conversion module of the present invention.

In the figure: 1. the device comprises a power supply delivery module, 11, a USB interface, 2, a voltage stabilizing module, 21, a low dropout regulator, 3, a wireless module, 31, an ESP _01 module, 4, a switching module, 41, 3Pin connectors, 5, first external equipment, 6, second external equipment, 7, a shell, 8 and MAX232 chips.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Example 1:

as shown in fig. 1-2, the portable RS _232 data wireless transparent transmission system of this embodiment includes a power supply module 1, a voltage regulation module 2 connected to the power supply module 1, a wireless module 3 connected to the voltage regulation module 2 and configured to wirelessly connect to a first external device 5, and a switching module 4 connected to the wireless module 3 and configured to connect to a second external device 6.

In this embodiment, the voltage stabilizing module 2 includes a low dropout regulator 21 connected to the power supply module 1, and a voltage stabilizing capacitor connected to the low dropout regulator 21.

In this embodiment, the voltage stabilizing capacitor includes a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4 connected to the low dropout linear regulator 21, the first capacitor C1 and the second capacitor C2 are respectively connected to a Vin end and a GND end of the low dropout linear regulator 21, the third capacitor C3 and the fourth capacitor C4 are respectively connected to a Vout end and a GND end of the low dropout linear regulator 21, the first capacitor C1 and the second capacitor C2 are connected in parallel, and the third capacitor C3 and the fourth capacitor C4 are connected in parallel.

In this embodiment, the wireless module 3 includes an ESP _01 module 31 connected to the low dropout regulator 21, and the Vout terminal of the low dropout regulator 21 is connected to the VCC terminal of the ESP _01 module 31. The ESP _01 module is formed by combining and packaging an ESP8266 Wi-Fi chip through devices such as a peripheral resistance capacitance crystal oscillator and the like. The utility model discloses a portable RS _232 data is wireless passes system thoroughly based on that ESP _01 module realizes that RS _232 data that plug and play is wireless passes system thoroughly, has solved among the prior art weak point that realizes RS _232 data transmission through the physical cable connection between the equipment, has filled the blank that RS _232 data is wireless passes equipment thoroughly among the prior art.

In this embodiment, a first resistor R1 and a second resistor R2 are further connected between the low dropout regulator 21 and the ESP _01 module 31, one end of each of the first resistor R1 and the second resistor R2 is connected to Vout of the low dropout regulator 21, and the other end of each of the first resistor R1 and the second resistor R2 is connected to an EN end and an RST end of the ESP _01 module 31.

In this embodiment, the adaptor module 4 includes a 3Pin connector 41 connected to the ESP _01 module 31, and the TXD and RXD of the ESP _01 module 31 are connected to the second Pin and the third Pin interface of the 3Pin connector 41, respectively. The GND terminal of the ESP _01 module 31 is connected to the first Pin terminal of the 3Pin connector 41. When the second external device itself is TTL level communication, the TXD terminal, RXD terminal, and GND terminal of the ESP _01 module 31 are directly connected to TTL, RDX, and GND of the second external device 6 in sequence through the 3Pin connector 41, and there is no need to convert TTL to RS232 module. When the second external device 6 uses the RS232 interface for communication, the TXD terminal and the RXD terminal of the ESP _01 module 31 are used as UART interfaces and are connected with the external TTL to RS232 module through a 3Pin connector at a TTL level of 3.3V, the external TTL to RS232 module is connected with the RS232 port of the second external device 6, and the connection can use the DB9 interface, so that the communication connection between the ESP _01 module 31 and the second external device 6 is realized. The external TTL to RS232 conversion module includes a MAX232 chip 8 connected to the 3Pin connector 41 and the second external device 6, respectively, an R2IN end and a T2OUT end of the MAX232 chip 8 are connected to the second Pin and the third Pin of the 3Pin connector 41, respectively, and a T2IN end and an R2OUT end of the MAX232 chip 8 may be connected to an RS232 interface of the second external device through a DB9 interface, as shown in fig. 4.

In this embodiment, the voltage delivery module includes a USB interface 11.

In this embodiment, the VCC terminal of the USB interface 11 is connected to the Vin terminal of the low dropout regulator 21.

Example 2:

as shown in fig. 1 to 4, the portable RS _232 data wireless transparent transmission device of this embodiment includes the portable RS _232 data wireless transparent transmission system of embodiment 1, and a housing 7 for installing the portable RS _232 data wireless transparent transmission system.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The same creation is considered to be simply replaced without changing the creation content of the present invention. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable RS _232 data wireless transparent transmission system is characterized in that: the power supply switching device comprises a power supply conveying module (1), a voltage stabilizing module (2) connected with the power supply conveying module (1), a wireless module (3) connected with the voltage stabilizing module (2) and used for being in wireless connection with first external equipment (5), and a switching module (4) connected with the wireless module (3) and used for being connected with second external equipment (6).

2. The portable RS _232 data wireless transparent transmission system according to claim 1, wherein: the voltage stabilizing module (2) comprises a low-dropout linear voltage regulator (21) connected with the power supply delivery module (1) and a voltage stabilizing capacitor connected with the low-dropout linear voltage regulator (21).

3. The portable RS _232 data wireless transparent transmission system according to claim 2, wherein: the voltage stabilizing capacitor comprises a first capacitor (C1), a second capacitor (C2), a third capacitor (C3) and a fourth capacitor (C4), wherein the first capacitor (C1) and the second capacitor (C2) are connected with a Vin end and a GND end of the low-dropout linear voltage regulator (21) respectively, the third capacitor (C3) and the fourth capacitor (C4) are connected with a Vout end and a GND end of the low-dropout linear voltage regulator (21) respectively, the first capacitor (C1), the second capacitor (C2) are connected in parallel, and the third capacitor (C3) and the fourth capacitor (C4) are connected in parallel.

4. The portable RS _232 data wireless transparent transmission system according to claim 3, wherein: the wireless module (3) comprises an ESP _01 module (31) connected with the low dropout linear regulator (21), and the Vout end of the low dropout linear regulator (21) is connected with the VCC end of the ESP _01 module (31).

5. The portable RS _232 data wireless transparent transmission system according to claim 4, wherein: a first resistor (R1) and a second resistor (R2) are further connected between the low dropout regulator (21) and the ESP _01 module (31), one end of the first resistor (R1) and one end of the second resistor (R2) are respectively connected with Vout of the low dropout regulator (21), and the other end of the first resistor (R1) and the other end of the second resistor (R2) are respectively connected with the EN end and the RST end of the ESP _01 module (31).

6. The portable RS232 data wireless transparent transmission system according to claim 4 or 5, wherein: the switching module (4) comprises a 3Pin connector (41) connected with the ESP _01 module (31), and the TXD end and the RXD end of the ESP _01 module (31) are respectively connected with any two interface ends of the 3Pin connector (41).

7. The portable RS _232 data wireless transparent transmission system according to claim 6, wherein: the voltage delivery module comprises a USB interface (11).

8. The portable RS _232 data wireless transparent transmission system according to claim 7, wherein: the VCC end of the USB interface (11) is connected with the Vin end of the low dropout linear regulator (21).

9. A portable RS _232 data wireless transparent transmission equipment is characterized in that: comprising a portable RS232 data wireless transparent transmission system according to claim 8, a housing (7) for mounting said portable RS232 data wireless transparent transmission system.