CN209823749U - Interface multiplexing device capable of simultaneously realizing wired communication and wireless communication - Google Patents

Abstract

The utility model discloses a can realize wire communication and wireless communication's interface multiplexing device simultaneously, including SRAM-1, power module, the MCU master control, the watchdog, SRAM-2, FPGA protocol switches and decoder module and TTL COMS level conversion module, SRAM-1 is connected with MCU master control circuit, power module respectively with the MCU master control, SRAM-2 and FPGA protocol switch and decoder module circuit connection, the MCU master control switches and decoder module circuit connection through SPI communication and FPGA protocol, the watchdog switches and decoder module circuit connection with MCU master control and FPGA protocol respectively, SRAM-2 switches and decoder module circuit connection with FPGA protocol, FPGA protocol switches and decoder module and TTL COMS level conversion module circuit connection, TTL COMS level conversion module is provided with the wire communication interface, the wireless communication interface, the FPGA-2 is connected with the FPGA protocol switch and decoder module circuit, TTL COMS level conversion module, A power supply interface and a programming interface. The multiplexing of interfaces of wired and wireless communication and the compatible conversion of communication protocols are realized, and the power consumption is saved.

Description

Interface multiplexing device capable of simultaneously realizing wired communication and wireless communication

Technical Field

The utility model relates to a wired and wireless communication technical field specifically is a can realize the multiplexing device of wired communication and wireless communication's interface simultaneously.

Background

With the continuous advancement of technology, communication interfaces on electronic devices are increasing, including wired communication interfaces and wireless communication interfaces. If electronic equipment wants to be compatible more communication ports just need big enough circuit board size in order to put these communication interfaces to cause the equipment volume too huge, power consumptive also can increase by times, some communication interfaces are to specific customer use, some customer can not use, but this all can be unified integrated installation when electronic equipment batch production, has caused very big waste, neither energy-conservation nor environmental protection. To this kind of condition, the utility model discloses a make electronic equipment's master control MCU can just realize wired and wireless multiple form's communication with wired communication and wireless communication's interface multiplexing, avoided the emergence of above-mentioned condition.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a can realize wired communication and wireless communication's interface multiplexing device simultaneously, solved and can't use a communication interface just to realize the problem of wired and wireless multiform communication.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an interface multiplexing device capable of simultaneously realizing wired communication and wireless communication comprises an SRAM-1, a power supply module, an MCU master control, a watchdog, an SRAM-2, an FPGA protocol switching and decoding module and a TTL/COMS level conversion module, wherein the SRAM-1 is connected with the MCU master control circuit, the power supply module is respectively connected with the MCU master control, the SRAM-2 and the FPGA protocol switching and decoding module through circuits, the MCU master control is connected with the FPGA protocol switching and decoding module through circuits of SPI communication, the watchdog is respectively connected with the MCU master control and the FPGA protocol switching and decoding module through circuits, the SRAM-2 is connected with the FPGA protocol switching and decoding module through circuits, the FPGA protocol switching and decoding module is connected with the TTL/COMS level conversion module through circuits, and the TTL/COMS level conversion module is provided with a wired communication interface, a watchdog switch and a TTL/COMS, Wireless communication interface, power supply interface and programming mouth.

Preferably, the wired communication interface in the TTL/cmos level translation module includes: the serial port RS232/RS485 communication module, the serial USB communication module and the TCP/IP Ethernet module are all connected with the TTL/COMS level conversion module through circuits.

Preferably, the wireless communication interface in the TTL/cmos level translation module includes: WIFI communication module, wireless 4G communication module, wireless GPRS communication module, wireless loRa communication module, wireless NB-IOT communication module and GPS module, WIFI communication module, wireless 4G communication module, wireless GPRS communication module, wireless loRa communication module, wireless NB-IOT communication module and GPS module all with TTL/COMS level conversion module circuit connection.

(III) advantageous effects

The utility model provides a can realize the multiplexing device of interface of wired communication and radio communication simultaneously, possess following beneficial effect:

the utility model discloses, through the SRAM-1 that sets up, the power module, MCU master control, the watchdog, SRAM-2, FPGA protocol switching and decoder module and TTL/COMS level conversion module, master control MCU carries out the business application program, when the business application program needs communication port and the outside of appointed type to communicate data receiving and dispatching, master control MCU issues control command to FPGA protocol switching and decoder module, inform this module to load corresponding protocol stack and instruction set from SRAM-2 memory, then carry out formatting and storing the communication message that upper MCU sent over into FPGA's own buffer, then FPGA calls decoder module and carries out the selection of communication circuit with lower floor TTL/COMS level conversion module, carry out the hardware route selection with the wired communication module that bottom layer actually corresponds, wireless communication module, finally after top layer MCU and bottom layer communication module both-way communication link, the main control MCU can receive and transmit correct communication messages on the appointed communication port, the interface multiplexing of wired and wireless communication and the compatible conversion of communication protocols can be realized, so that the electronic equipment can realize the communication of various forms such as wired and wireless communication and the like only by using one communication interface, the communication design difficulty of the electronic equipment is reduced, the volume of the electronic equipment is reduced, electronic components are saved, the power consumption is saved, unnecessary waste is avoided, and the problem that the communication of various forms such as wired and wireless cannot be realized by using one communication interface is solved.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic diagram of the TTL/cmos level conversion module of the present invention.

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.

Referring to fig. 1-2, an embodiment of the present invention is shown; an interface multiplexing device capable of simultaneously realizing wired communication and wireless communication comprises an SRAM-1, a power supply module, an MCU master control, a watchdog, an SRAM-2, an FPGA protocol switching and decoder module and a TTL/COMS level conversion module, wherein the SRAM-1 is connected with the MCU master control circuit, the power supply module is respectively connected with the MCU master control, the SRAM-2 and the FPGA protocol switching and decoder module, the power supply module is used for providing working power supply for other modules, the FPGA protocol switching and decoder module is mainly used for matching and switching among different communication protocols, meanwhile, the decoder drives the TTL/COMS level conversion and matching module to select a corresponding signal line to establish hardware connection according to communication requirements, the MCU master control is butted with the FPGA protocol switching and decoder module through an SPI communication mode and is used for sending and receiving communication messages and controlling flow congestion to the MCU master control module, SRAM-2 is used for storing communication protocol stack and control instruction for loading and calling FPGA protocol switching and decoder module according to actual communication mode, SRAM-1 is used for storing main control application program, and is loaded and executed by MCU, MCU main control is connected with FPGA protocol switching and decoder module by means of SPI communication, watchdog is respectively connected with MCU main control and FPGA protocol switching and decoder module by means of circuit, watchdog module is butt-jointed with MCU for monitoring MCU operation state and preventing MCU from being down, watchdog module is butt-jointed with FPGA protocol switching and decoder module for monitoring FPGA operation state and preventing FPAG from being down, SRAM-2 is connected with FPGA protocol switching and decoder module by means of circuit, FPGA protocol switching and decoder module is connected with TTL/COMS level conversion module by means of circuit, TTL/COMS level conversion and matching module is used for connecting unified level signal with FPGA protocol switching and decoder module, the TTL/COMS level conversion module is provided with wired communication interface, wireless communication interface, power supply interface and programming mouth, and wired communication interface in the TTL/COMS level conversion module contains: serial ports RS232 RS485 communication module, serial USB communication module and TCP/IP ethernet module, serial ports RS232 RS485 communication module, serial USB communication module and TCP/IP ethernet module all with TTL/COMS level conversion module circuit connection, RS232 level conversion circuit includes RS232 level conversion integrated circuit and RS232 level conversion integrated circuit peripheral circuit, RS232 interface circuit includes the UART connector, the UART connector is 8 needle RJ45 connectors, the wireless communication interface in the TTL/COMS level conversion module contains: a WIFI communication module, a wireless 4G communication module, a wireless GPRS communication module, a wireless LoRa communication module, a wireless NB-IOT communication module and a GPS module, WIFI communication module, wireless 4G communication module, wireless GPRS communication module, wireless loRa communication module, wireless NB-IOT communication module and GPS module all with TTL/COMS level conversion module circuit connection, wired communication interface and wireless communication interface are connected with upper TTL/COMS level conversion and matching module, convert the level signal of various communication interfaces into unified level mode, the power supply port adopts DC24V power source, the wired communication port can install corresponding wired communication module according to the actual demand during production additional, the wireless communication port can install corresponding wireless communication module according to the actual demand during production additional, the programming port mainly is used for switching main control MCU and FPGA protocol and decoder module carries out programming input.

The working principle is as follows: the method comprises the steps that a main control MCU executes a service application program, when the service application program needs to transmit and receive communication data between a communication port of a specified type and the outside, the main control MCU transmits a control instruction to an FPGA protocol switching and decoding module, the module is informed to load a corresponding protocol stack and an instruction set from an SRAM-2 memory, then communication messages transmitted by an upper layer MCU are formatted and packaged and stored in a buffer of the FPGA, then the FPGA calls the decoding module to select a communication circuit with a lower layer TTL/COMS level conversion module, the decoding module is connected with a wired communication module and a wireless communication module which actually correspond to a bottommost layer, and finally, after a bidirectional communication link is formed between the top layer MCU and the bottommost layer communication module, the main control MCU can transmit and receive correct communication messages on the specified communication port.

To sum up, the utility model discloses a SRAM-1, power module, MCU master control, watchdog, SRAM-2, FPGA protocol switch and decoder module and TTL COMS level conversion module that set up have solved and can't have used a communication interface just to realize the problem of wired and wireless multiform communication.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. An interface multiplexing device capable of simultaneously realizing wired communication and wireless communication comprises an SRAM-1, a power supply module, an MCU master control, a watchdog, an SRAM-2, an FPGA protocol switching and decoding module and a TTL/COMS level conversion module, and is characterized in that: the SRAM-1 is connected with the MCU main control circuit, the power supply module is respectively connected with the MCU main control, the SRAM-2 and the FPGA protocol switching and decoder module through circuits, the MCU main control is connected with the FPGA protocol switching and decoder module through circuits of SPI communication, the watchdog is respectively connected with the MCU main control and the FPGA protocol switching and decoder module through circuits, the SRAM-2 is connected with the FPGA protocol switching and decoder module through circuits, the FPGA protocol switching and decoder module is connected with the TTL/COMS level conversion module through circuits, and the TTL/COMS level conversion module is provided with a wired communication interface, a wireless communication interface, a power supply interface and a programming interface.

2. The interface multiplexing apparatus capable of simultaneously performing wired communication and wireless communication according to claim 1, wherein: the wired communication interface in the TTL/COMS level conversion module comprises: the serial port RS232/RS485 communication module, the serial USB communication module and the TCP/IP Ethernet module are all connected with the TTL/COMS level conversion module through circuits.

3. The interface multiplexing apparatus capable of simultaneously performing wired communication and wireless communication according to claim 1, wherein: the wireless communication interface in the TTL/COMS level conversion module comprises: WIFI communication module, wireless 4G communication module, wireless GPRS communication module, wireless loRa communication module, wireless NB-IOT communication module and GPS module, WIFI communication module, wireless 4G communication module, wireless GPRS communication module, wireless loRa communication module, wireless NB-IOT communication module and GPS module all with TTL/COMS level conversion module circuit connection.