CN212061148U

CN212061148U - Serial port auxiliary tool for connecting mainboard to be monitored and computer

Info

Publication number: CN212061148U
Application number: CN202020728612.3U
Authority: CN
Inventors: 牟浩; 龚方勇
Original assignee: Chongqing Xinchi Technology Co ltd
Current assignee: Chongqing Xinchi Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2020-12-01
Anticipated expiration: 2030-05-07

Abstract

The utility model provides a serial ports appurtenance for realizing treating monitoring mainboard and computer are connected, include: the USB interface comprises a serial port module U6, a first serial port connection module, a second serial port connection module and a USB module U4; the USB module U4 is used for connecting a computer USB interface with the serial port module U6; the first serial port connection module includes: the first switch SW3 and the first and gate U10, a first input end and a second input end of the first switch SW3 are respectively connected to a first transmitting end and a first receiving end of the serial port module U6, and the first switch SW3 is used for enabling the first input end and the first output end in the first switch SW3 to be connected or disconnected, the second input end and the second output end to be connected or disconnected, and the second input end and the third output end to be connected or disconnected. A serial ports appurtenance for realizing treating monitor mainboard and computer are connected solves prior art and need the on-the-spot problem that just can realize treating monitor mainboard and computer communication of looking for many accessories at the monitoring mainboard in-process.

Description

Serial port auxiliary tool for connecting mainboard to be monitored and computer

Technical Field

The utility model relates to a mainboard monitoring instrument in gas table or the water gauge, concretely relates to serial ports appurtenance for realizing waiting to monitor the mainboard and being connected with the computer.

Background

In gas table and water gauge, need use gas table mainboard, water gauge mainboard and collector mainboard etc. in order to guarantee each mainboard quality of dispatching from the factory, perhaps monitor each mainboard after dispatching from the factory, make things convenient for the mainboard maintenance, need monitor the mainboard, because the mainboard can't link to each other with the computer, need find a lot of accessories when the monitoring can realize that mainboard and computer communicate, lead to monitoring work complex operation, operating time is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a serial ports appurtenance for realizing treating that monitoring mainboard and computer are connected solves prior art and need the on-the-spot problem of just can realizing treating monitoring mainboard and computer communication of looking for a lot of accessories at monitoring mainboard in-process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a serial ports appurtenance for realizing treating monitoring mainboard and computer are connected, include: the USB interface comprises a serial port module U6, a first serial port connection module, a second serial port connection module and a USB module U4; the USB module U4 is used for connecting a computer USB interface with the serial port module U6; the first serial port connection module includes: a first switch SW3 and a first and gate U10, a first input end and a second input end of the first switch SW3 are connected to a first sending end and a first receiving end of the serial port module U6 respectively, the first switch SW3 is used for enabling a first input end and a first output end in the first switch SW3 to be connected or disconnected, a second input end and a second output end to be connected or disconnected, a second input end and a third output end to be connected or disconnected, a third output end of the first switch SW3 is connected to a Y end of the first and gate U10, an a end and a B end of the first and gate U10 are connected with a first output end and a second output end of the first switch SW3 respectively, and a first output end and a second output end of the first switch SW3 are used for being connected to the receiving end and the sending end of the first main board to be monitored respectively; the second serial port connection module includes: a second switch SW4 and a second and gate U11, a first input end and a second input end of the second switch SW4 are connected to a second transmitting end and a second receiving end of the serial port module U6, respectively, the second switch SW4 is configured to enable the first input end and the first output end in the second switch SW4 to be connected or disconnected, the second input end and the second output end are connected or disconnected, the second input end and the third output end are connected or disconnected, a third output end of the second switch SW4 is connected to the Y end of the second and gate U11, the a end and the B end of the second and gate U11 are connected to the first output end and the second output end of the second switch SW4, respectively, and the first output end and the second output end of the second switch SW4 are configured to be connected to the receiving end and the transmitting end of the second main board to be monitored, respectively.

Preferably, the serial port accessory tool for connecting the mainboard to be monitored and the computer further comprises: the power supply module, the power supply switching module SW2 and the serial port level switching module SW 1; the power module includes: the USB module comprises a first voltage stabilizing chip U2 and a second voltage stabilizing chip U3, wherein the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are connected with the power end of a USB module U4, the first voltage stabilizing chip U2 is used for converting 5v voltage into 3.3v voltage, and the second voltage stabilizing chip U3 is used for converting 5v voltage into 1.8v voltage; a first input end and a third input end of the power supply switching module SW2 are both connected to an output end of the first voltage stabilization chip U2, a second input end and a fourth input end of the power supply switching module SW2 are both connected to a power supply end of the USB module U4, the power supply switching module SW2 is used for realizing that a first output end of the power supply switching module SW2 is communicated with the first input end or the second input end, a second output end of the power supply switching module SW2 is communicated with the third input end or the fourth input end, the first output end of the power supply switching module SW2 is used for connecting a power supply end of a first mainboard to be monitored, and the second output end of the power supply switching module SW2 is used for connecting; the first input end and the third input end of the serial port level switching module SW1 are both connected to the output end of the first voltage stabilization chip U2, the second input end and the fourth input end of the serial port level switching module SW1 are both connected to the output end of the second voltage stabilization chip U3, the serial port level switching module SW1 is used for switching the first output end and the first input end or the second input end of the power switching module SW2 to be communicated, the second output end and the third input end or the fourth input end to be communicated, the first output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the first mainboard to be monitored, and the second output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the second mainboard to be monitored.

Preferably, the input ends of the first voltage regulation chip U2 and the second voltage regulation chip U3 are both connected to the positive electrode of the capacitor C3, and the negative electrode of the capacitor C3 is grounded.

Preferably, the output terminal of the first voltage regulation chip U2 is connected to the positive electrode of the capacitor C2, and the GND terminal of the first voltage regulation chip U2 is connected to the negative electrode of the capacitor C2.

Preferably, the output terminal of the second zener chip U3 is connected to the positive terminal of the capacitor C11, and the GND terminal of the second zener chip U3 is connected to the negative terminal of the capacitor C11.

Compared with the prior art, the utility model discloses following beneficial effect has:

serial module U6 adopts the CP2105 model, serial module realizes that USB module and first mainboard and the second of treating to monitor are connected of mainboard, first serial connection module and second serial connection module are used for connecting first mainboard and the second of treating to monitor respectively and treat the monitoring mainboard, realize simultaneously that first mainboard and the second of treating to monitor treat monitoring mainboard and monitor simultaneously, improved monitoring efficiency, first serial connection module and second serial connection module all are used for realizing two kinds of mode simultaneously. In the first working mode: in the first switch SW3, the first input end and the first output end are connected, the second input end and the second output end are connected, the second input end and the third output end are disconnected, the MCU-TX1 is connected with the TX1, and the MCU-RX1 is connected with the RX1, which is equivalent to a same conventional serial port line, and the first mainboard to be monitored is in normal communication with a computer. In the second working mode: in the first switch SW3, the first input end is disconnected from the first output end, the second input end is disconnected from the second output end, the second input end is connected with the third output end, and the TRX1 is connected with the MCU-RX1, so that the transceiving line of the first motherboard to be monitored is simultaneously connected to the serial module receiving line through a logic chip (the first and gate U10), so that the whole serial tool can simultaneously receive transceiving data of other serial devices, playing a monitoring role, and the first and gate U10 plays a role in ensuring that data is not distorted when receiving the first transceiving data to be monitored.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a circuit diagram of a serial port module in a serial port accessory tool for connecting a mainboard to be monitored with a computer;

FIG. 2 is a circuit diagram of a USB module in a serial port accessory tool for connecting a mainboard to be monitored with a computer;

FIG. 3 is a circuit diagram of a first serial port connection module in a serial port accessory tool for connecting a motherboard to be monitored with a computer;

FIG. 4 is a circuit diagram of a second serial port connection module in the serial port accessory for connecting the motherboard to be monitored with the computer;

FIG. 5 is a circuit diagram of a power module in a serial port accessory tool for connecting a motherboard to be monitored with a computer;

FIG. 6 is a circuit diagram of a power switching module in a serial port accessory tool for connecting a motherboard to be monitored with a computer;

fig. 7 is a circuit diagram of a serial port level switching module in the serial port accessory tool for connecting the motherboard to be monitored and the computer.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 to 7, the utility model provides a serial ports appurtenance for realizing treating monitoring mainboard and computer are connected, include: the USB interface comprises a serial port module U6, a first serial port connection module, a second serial port connection module and a USB module U4; the USB module U4 is used for connecting a computer USB interface with the serial port module U6; the first serial port connection module includes: a first switch SW3 and a first and gate U10, a first input end and a second input end of the first switch SW3 are respectively connected to a first transmitting end and a first receiving end of the serial port module U6, the first switch SW3 is used for enabling a first input end MCU-TX1 and a first output end TX1 in the first switch SW3 to be switched on or off, a second input end MCU-RX1 and a second output end RX1 to be switched on or off, a second input end MCU-RX1 and a third output end TRX1 in the first switch SW3 to be switched on or off, a third output end TRX1 of the first switch SW3 is connected to a Y end of the first and gate U10, an a end and a B end of the first and gate U10 are respectively connected to the first output end TX1 and the second output end RX1 of the first switch SW3, and a first output end TX1 and a second output end RX2 of the first switch TX 67 3 are used for being respectively connected to a receiving end and a receiving end of a main board to be monitored; the second serial port connection module includes: a second switch SW4 and a second AND gate U11, the first input terminal RS485-TX and the second input terminal RS485-RX of the second switch SW4 are respectively connected to the second transmitting terminal TXD-ECI and the second receiving terminal DSR-ECI of the serial port module U6, the second switch SW4 is used for switching the first input terminal RS485-TX and the first output terminal TX2 on or off and the second input terminal RS485-RX and the second output terminal RX2 on or off in the second switch SW4, the second input end RS485-RX and the third output end TRX2 are connected or disconnected, the third output end TRX2 of the second switch SW4 is connected to the Y end of the second and gate U11, the a end and the B end of the second and gate U11 are respectively connected to the first output end TX2 and the second output end RX2 of the second switch SW4, and the first output end TX2 and the second output end RX2 of the second switch SW4 are used for being respectively connected to the receiving end and the transmitting end of the second main board to be monitored.

Different mainboards need different working voltages, some need 5v, and some need 3.3 v; the serial port levels required by different mainboards are different, some require 3.3v, and some require 1.8 v. In order to meet different requirements, the following design is made: this a serial ports appurtenance for realizing treating monitor mainboard and computer connection still includes: the power supply module, the power supply switching module SW2 and the serial port level switching module SW 1; the power module includes: the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are connected with the power supply end of the USB module U4, the power supply end of the USB module U4 is connected with a 5v power supply provided by a USB interface of a computer through a fuse, the connection is that input voltage is provided for the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3, additional power supply is avoided, and the use is convenient; a first input end and a third input end of the power supply switching module SW2 are both connected to an output end of the first voltage stabilization chip U2, a second input end and a fourth input end of the power supply switching module SW2 are both connected to a power supply end of the USB module U4, the power supply switching module SW2 is used for realizing that a first output end of the power supply switching module SW2 is communicated with the first input end or the second input end, a second output end of the power supply switching module SW2 is communicated with the third input end or the fourth input end, the first output end of the power supply switching module SW2 is used for connecting a power supply end of a first mainboard to be monitored, and the second output end of the power supply switching module SW2 is used for connecting; the first input end and the third input end of the serial port level switching module SW1 are both connected to the output end of the first voltage stabilization chip U2, the second input end and the fourth input end of the serial port level switching module SW1 are both connected to the output end of the second voltage stabilization chip U3, the serial port level switching module SW1 is used for switching the first output end and the first input end or the second input end of the power switching module SW2 to be communicated, the second output end and the third input end or the fourth input end to be communicated, the first output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the first mainboard to be monitored, and the second output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the second mainboard to be monitored.

The first switch SW3, the second switch SW4, the power switching module SW2 and the serial port level switching module SW1 are all manual adjustment switches, and the on/off of the switches needs to be manually adjusted.

In order to ensure that the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are connected with a stable 5v voltage, the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are both connected to the positive electrode of the capacitor C3, and the negative electrode of the capacitor C3 is grounded.

In order to ensure that the output of the first voltage regulation chip U2 is a stable 3.3v voltage, the output terminal of the first voltage regulation chip U2 is connected to the positive electrode of the capacitor C2, and the GND terminal of the first voltage regulation chip U2 is connected to the negative electrode of the capacitor C2.

In order to ensure that the output of the second voltage regulation chip U3 is a stable 1.8v voltage, the output terminal of the second voltage regulation chip U3 is connected to the positive electrode of the capacitor C11, and the GND terminal of the second voltage regulation chip U3 is connected to the negative electrode of the capacitor C11.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a serial ports appurtenance for realizing treating monitoring mainboard and computer are connected which characterized in that includes: the USB interface comprises a serial port module U6, a first serial port connection module, a second serial port connection module and a USB module U4;

the USB module U4 is used for connecting a computer USB interface with the serial port module U6;

the first serial port connection module includes: a first switch SW3 and a first and gate U10, a first input end and a second input end of the first switch SW3 are connected to a first sending end and a first receiving end of the serial port module U6 respectively, the first switch SW3 is used for enabling a first input end and a first output end in the first switch SW3 to be connected or disconnected, a second input end and a second output end to be connected or disconnected, a second input end and a third output end to be connected or disconnected, a third output end of the first switch SW3 is connected to a Y end of the first and gate U10, an a end and a B end of the first and gate U10 are connected with a first output end and a second output end of the first switch SW3 respectively, and a first output end and a second output end of the first switch SW3 are used for being connected to the receiving end and the sending end of the first main board to be monitored respectively;

the second serial port connection module includes: a second switch SW4 and a second and gate U11, a first input end and a second input end of the second switch SW4 are connected to a second transmitting end and a second receiving end of the serial port module U6, respectively, the second switch SW4 is configured to enable the first input end and the first output end in the second switch SW4 to be connected or disconnected, the second input end and the second output end are connected or disconnected, the second input end and the third output end are connected or disconnected, a third output end of the second switch SW4 is connected to the Y end of the second and gate U11, the a end and the B end of the second and gate U11 are connected to the first output end and the second output end of the second switch SW4, respectively, and the first output end and the second output end of the second switch SW4 are configured to be connected to the receiving end and the transmitting end of the second main board to be monitored, respectively.

2. The serial port auxiliary tool for connecting the mainboard to be monitored and the computer according to claim 1, further comprising: the power supply module, the power supply switching module SW2 and the serial port level switching module SW 1;

the power module includes: the USB module comprises a first voltage stabilizing chip U2 and a second voltage stabilizing chip U3, wherein the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are connected with the power end of a USB module U4, the first voltage stabilizing chip U2 is used for converting 5v voltage into 3.3v voltage, and the second voltage stabilizing chip U3 is used for converting 5v voltage into 1.8v voltage;

a first input end and a third input end of the power supply switching module SW2 are both connected to an output end of the first voltage stabilization chip U2, a second input end and a fourth input end of the power supply switching module SW2 are both connected to a power supply end of the USB module U4, the power supply switching module SW2 is used for realizing that a first output end of the power supply switching module SW2 is communicated with the first input end or the second input end, a second output end of the power supply switching module SW2 is communicated with the third input end or the fourth input end, the first output end of the power supply switching module SW2 is used for connecting a power supply end of a first mainboard to be monitored, and the second output end of the power supply switching module SW2 is used for connecting;

the first input end and the third input end of the serial port level switching module SW1 are both connected to the output end of the first voltage stabilization chip U2, the second input end and the fourth input end of the serial port level switching module SW1 are both connected to the output end of the second voltage stabilization chip U3, the serial port level switching module SW1 is used for switching the first output end and the first input end or the second input end of the power switching module SW2 to be communicated, the second output end and the third input end or the fourth input end to be communicated, the first output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the first mainboard to be monitored, and the second output end of the serial port level switching module SW1 is used for being connected with the serial port level end of the second mainboard to be monitored.

3. The serial port assistant tool for connecting a mainboard to be monitored and a computer, according to claim 2, is characterized in that the input ends of the first voltage stabilizing chip U2 and the second voltage stabilizing chip U3 are both connected to the positive electrode of a capacitor C3, and the negative electrode of the capacitor C3 is grounded.

4. The serial port assistant tool for connecting a mainboard to be monitored and a computer, according to claim 3, wherein an output end of the first voltage stabilizing chip U2 is connected to a positive electrode of the capacitor C2, and a GND end of the first voltage stabilizing chip U2 is connected to a negative electrode of the capacitor C2.

5. The serial port assistant tool for connecting a mainboard to be monitored and a computer, according to claim 4, is characterized in that an output end of the second voltage stabilizing chip U3 is connected to a positive electrode of the capacitor C11, and a GND end of the second voltage stabilizing chip U3 is connected to a negative electrode of the capacitor C11.