Serial port monitoring equipment

Abstract

The utility model provides serial port monitoring equipment. The serial port monitoring equipment comprises an equipment mainboard, an adapter plate, a serial port screen and a computer, the equipment mainboard comprises an output interface, a monitoring switch circuit, a serial port screen interface, a level conversion chip and a monitoring interface; the output interface is respectively connected with the equipment mainboard and the monitoring switch circuit; the serial port screen interface is respectively connected with the monitoring switch circuit and the serial port screen; the level conversion chip is respectively connected with the monitoring switch circuit and the monitoring interface; and the monitoring interface is connected with the computer. By implementing the embodiment of the invention, the serial port screen can be monitored, the monitoring efficiency is improved, the connection mode of the serial port does not need to be changed again, real-time monitoring is realized, the use cost is reduced, and manpower and material resources generated by changing a connection line in the prior art are reduced.

Description

Technical Field

[0001] This application relates to the technical field of monitoring circuits, and more particularly, to a serial port monitoring device. Background Art

[0002] Existing serial port monitoring devices can only communicate between the device and the computer debugging software. Moreover, it is inconvenient to monitor the data during actual operation. Since in actual use, the serial port screen is usually connected together with other serial port devices to form a complete machine. With this connection method, after connection, if you want to monitor the data during the operation of the entire machine, you can only weld the jumper to the base and then lead out the jumper, which is inconvenient for actual operation. If debugging is required at the device installation site, a soldering iron, solder, and wires need to be prepared for on-site welding, which is time-consuming and laborious, and it is impossible to monitor at any time. Utility Model Content

[0003] The purpose of the embodiments of this application is to provide a serial port monitoring device, which can monitor the serial port screen, improve the monitoring efficiency, without the need to change the serial port connection method, achieve real-time monitoring, reduce the use cost, and reduce the human and material resources generated by changing the connection line in the prior art.

[0004] In a first aspect, the embodiments of this application provide a serial port monitoring device, which includes:

[0005] A device main board, an adapter board, a serial port screen, and a computer;

[0006] The device main board includes an output interface, a monitoring switch circuit, a serial port screen interface, a level conversion chip, and a monitoring interface;

[0007] The output interface is respectively connected to the device main board and the monitoring switch circuit;

[0008] The serial port screen interface is respectively connected to the monitoring switch circuit and the serial port screen;

[0009] The level conversion chip is respectively connected to the monitoring switch circuit and the monitoring interface;

[0010] The monitoring interface is connected to the computer.

[0011] In the above implementation process, by setting a monitoring switch circuit, a monitoring interface, and a level conversion chip in the adapter board, the serial port screen can be monitored, the monitoring efficiency can be improved, the serial port connection method does not need to be changed, real-time monitoring can be achieved, the use cost can be reduced, and the human and material resources generated by changing the connection line in the prior art can be reduced.

[0012] Further, the monitoring switch circuit includes a first interface and a second interface. The first transmitting port pin of the serial port screen is connected to the first interface of the monitoring switch circuit, and the second transmitting port pin of the serial port screen is connected to the second interface of the monitoring switch circuit.

[0013] In the above implementation process, the monitoring switch circuit is connected to the serial port screen through the first interface and the second interface, and can transmit input signals and output signals respectively, ensuring the signal transmission efficiency during the monitoring process.

[0014] Further, the monitoring interface includes a first serial port and a second serial port, and the first serial port and the second serial port are respectively connected to the computer.

[0015] In the above implementation process, the monitoring interface is connected to the computer through two serial ports, and can quickly and accurately obtain the monitoring signals of the computer, ensuring effective and stable signal transmission between the computer and the serial port screen.

[0016] Further, the computer monitors the signal transmitted from the first interface of the monitoring switch circuit to the level conversion chip through the first serial port, and the computer monitors the signal transmitted from the second interface of the monitoring switch circuit to the level conversion chip through the second serial port.

[0017] In the above implementation process, the computer monitors the signals of the level conversion chip through multiple interfaces, which can improve the monitoring efficiency, effectively avoid circuit changes at the same time, reduce the monitoring cost, and ensure the stable progress of the monitoring process.

[0018] Further, the level conversion chip includes a first interface chip and a second interface chip, and the level conversion chip converts the TTL signal transmitted by the serial port screen into a 232 signal through the first interface chip.

[0019] In the above implementation process, the first interface chip can convert the TTL signal into a 232 signal and effectively transmit the TTL signal and the 232 signal, which can improve the working efficiency of the level conversion chip.

[0020] Further, the control terminal interface of the level conversion chip is connected to the first pin of the first interface chip.

[0021] In the above implementation process, the direct connection between the control terminal interface and the first interface chip can ensure faster signal transmission between the computer and the first interface chip, and directly and effectively transmit the converted signal.

[0022] Further, the second pin of the first interface chip receives the transmission signal of the computer and increases the control value of the control terminal interface, so that the level conversion chip is in the sending state.

[0023] In the above implementation process, the second pin of the first interface chip receives the transmission signal from the computer, enabling timely acquisition of the computer's monitoring requirements, ensuring the stable operation of the level conversion chip, increasing the monitoring frequency, and further guaranteeing the monitoring quality.

[0024] Further, when the switch of the first interface chip is placed in the first position, the input signal is a TTL signal, and when the switch is placed in the second position, the output signal is a 232 signal.

[0025] In the above implementation process, the first interface chip realizes signal conversion through the conversion of the switch position, which can improve the conversion efficiency and reduce the conversion cost at the same time.

[0026] Further, the first interface chip can also keep the TTL signal unchanged.

[0027] In the above implementation process, the flexibility of the first interface chip can be improved, enabling the first interface chip to adapt to various monitoring requirements.

[0028] Further, the model of the level conversion chip is SN74AHC86, which is a logic chip composed of four groups of exclusive-OR gates. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic diagram of the structural composition of the serial port monitoring device provided by the embodiment of the present application;

[0031] Figure 2 Schematic diagram of the monitoring switch circuit provided by the embodiment of the present application;

[0032] Figure 3 Schematic diagram of the monitoring interface provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] Currently, the serial port monitoring devices in the prior art can only communicate between the device and the computer debugging software, which is not convenient for monitoring the data during actual operation and is not easy to operate. If on-site debugging of the device is required, soldering irons, soldering tin, and wires need to be prepared for on-site welding, which is time-consuming and laborious, and monitoring cannot be achieved.

[0036] In view of the above problems in the prior art, this application provides a serial port monitoring device.

[0037] Embodiment 1

[0038] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0039] An embodiment of the present utility model provides a serial port monitoring device, as Figure 1 shown. The device includes the following: a device main board, an adapter board, a serial port screen, and a computer;

[0040] The device main board includes an output interface, a monitoring switch circuit, a serial port screen interface, a level conversion chip, and a monitoring interface;

[0041] The output interface is respectively connected to the device main board and the monitoring switch circuit;

[0042] The serial port screen interface is respectively connected to the monitoring switch circuit and the serial port screen;

[0043] The level conversion chip is respectively connected to the monitoring switch circuit and the monitoring interface;

[0044] The monitoring interface is connected to the computer.

[0045] In the above implementation process, by setting a monitoring switch circuit, a monitoring interface, and a level conversion chip in the adapter board, the serial port screen can be monitored, the monitoring efficiency can be improved, there is no need to change the connection method of the serial port again, real-time monitoring can be achieved, the use cost can be reduced, and the human and material resources generated by changing the connection line in the prior art can be reduced.

[0046] The device main board has an integrated function, which can realize communication between dual serial port screens, realize the monitoring function during dual serial port screen communication, and conduct on-line debugging of the serial port screen and the computer.

[0047] Further, the monitoring switch circuit includes a first interface and a second interface. The first transmitting port pin of the serial screen is connected to the first interface of the monitoring switch circuit, and the second transmitting port pin of the serial screen is connected to the second interface of the monitoring switch circuit.

[0048] In the above implementation process, the monitoring switch circuit is connected to the serial screen through the first interface and the second interface, and can transmit input signals and output signals respectively, ensuring the signal transmission efficiency during the monitoring process.

[0049] The monitoring switch circuit can be used during the communication between dual serial screens. As Figure 2 shown, when in use, switch the 1-4 switches of SW4 to the off state and the 5-8 switches to the on state. The first interface J1 and the second interface J2 can be connected to the serial screens that need to communicate.

[0050] Further, the monitoring interface includes a first serial port and a second serial port, and the first serial port and the second serial port are respectively connected to the computer.

[0051] In the above implementation process, the monitoring interface is connected to the computer through two serial ports, and can quickly and accurately obtain the monitoring signals of the computer, ensuring the effective and stable signal transmission between the computer and the serial screen.

[0052] CN1 (the first serial port) and CN2 (the second serial port) are connected to the computer to implement the monitoring function. As Figure 3 shown are CN1 and CN2.

[0053] Further, the computer monitors the signals transmitted from the first interface of the monitoring switch circuit to the level conversion chip through the first serial port, and the computer monitors the signals transmitted from the second interface of the monitoring switch circuit to the level conversion chip through the second serial port.

[0054] In the above implementation process, the computer monitors the signals of the level conversion chip through multiple interfaces, which can improve the monitoring efficiency, effectively avoid circuit changes at the same time, reduce the monitoring cost, and ensure the stable progress of the monitoring process.

[0055] The signals monitored by CN1 are the signals transmitted from the first interface J1 of the monitoring switch circuit and the signals transmitted from the TX pin of the serial screen. The signals monitored by CN2 are the signals transmitted from the second interface J2 of the monitoring switch circuit and the signals transmitted from the TX pin of the serial screen.

[0056] Further, the level conversion chip includes a first interface chip and a second interface chip. The level conversion chip converts the digital level standard (Transistor-Transistor Logic, TTL) signals transmitted by the serial screen into 232 signals through the first interface chip.

[0057] In the above implementation process, the first interface chip can convert the TTL signal into a 232 signal and effectively transmit the TTL signal and the 232 signal, which can improve the working efficiency of the level conversion chip.

[0058] Further, the control terminal interface of the level conversion chip is connected to the first pin of the first interface chip.

[0059] In the above implementation process, the direct connection between the control terminal interface and the first interface chip can ensure that the signal transmission between the computer and the first interface chip is faster and can directly and effectively transmit the converted signal.

[0060] Further, the second pin of the first interface chip receives the transmission signal from the computer and increases the control value of the control terminal interface, so that the level conversion chip is in the sending state.

[0061] In the above implementation process, the second pin of the first interface chip receives the transmission signal from the computer, which can obtain the monitoring requirements of the computer in a timely manner, ensure the stable operation of the level conversion chip, improve the monitoring frequency, and further ensure the monitoring quality.

[0062] The control terminal interface is connected to the 6th pin of the first interface chip. When the TX signal from the computer end comes to the 4th pin of the first interface chip, the control value will be automatically pulled high, thus realizing that the level conversion chip is in the sending state.

[0063] Further, when the switch of the first interface chip is in the first position, the input signal is a TTL signal, and when the switch is in the second position, the output signal is a 232 signal.

[0064] In the above implementation process, the first interface chip realizes the conversion of the signal through the conversion of the switch position, which can improve the conversion efficiency and reduce the conversion cost at the same time.

[0065] The first interface chip (U1) can convert the TTL signal and the 232 signal. When the switch (SW1 switch) of the first interface chip is turned to the first position, the 5th pin and the 10th pin of the first interface chip are in a floating state. At this time, the 1st pin transmits the signal of the computer end TX, the 3rd pin transmits the received signal of the serial port screen, the 11th pin transmits the signal of the computer end RX, and the 2nd pin and the 3rd pin transmit the signal of the computer end TX, which is the TTL signal. When the SW1 switch is turned to the second position, the 5th pin and the 10th pin are 0. At this time, the output signal is opposite to the input signal, which is the 232 signal.

[0066] Further, the first interface chip can also keep the TTL signal unchanged.

[0067] In the above implementation process, the flexibility of the first interface chip can be improved, so that the first interface chip can adapt to various monitoring requirements.

[0068] Further, the model of the level conversion chip is SN74AHC86, which is a logic chip and consists of four groups of exclusive-OR gates.

[0069] The embodiments of the present application can optimize the debugging method during monitoring, facilitate the handling of communication circuit problems, avoid the problems brought by other monitoring methods, and improve the monitoring efficiency and stability.

[0070] In several embodiments provided in the present application, it should be understood that the disclosed device can also be implemented in other ways. The device embodiments described above are only illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order from that marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0071] In addition, the functional modules in each embodiment of the present application can be integrated together to form an independent part, or each module can exist alone, or two or more modules can be integrated to form an independent part.

[0072] If the function is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0073] The above are only embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0074] As described above, these are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily conceive of changes or replacements within the technical scope disclosed by the present application, and all such changes or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0075] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A serial port monitoring device, characterized in that, The serial port monitoring device includes: a device main board, an adapter board, a serial port screen, and a computer; the device main board includes an output interface, a monitoring switch circuit, a serial port screen interface, a level conversion chip, and a monitoring interface; the output interface is respectively connected to the device main board and the monitoring switch circuit; the serial port screen interface is respectively connected to the monitoring switch circuit and the serial port screen; the level conversion chip is respectively connected to the monitoring switch circuit and the monitoring interface; the monitoring interface is connected to the computer.

2. The serial port monitoring device according to claim 1, wherein The monitoring switch circuit includes a first interface and a second interface. The first transmission port pin of the serial port screen is connected to the first interface of the monitoring switch circuit, and the second transmission port pin of the serial port screen is connected to the second interface of the monitoring switch circuit.

3. The serial port monitoring device according to claim 1, characterized in that, The monitoring interface includes a first serial port and a second serial port, and the first serial port and the second serial port are respectively connected to the computer.

4. The serial port monitoring device according to claim 3, characterized in that, The computer monitors the signal transmitted from the first interface of the monitoring switch circuit to the level conversion chip through the first serial port, and the computer monitors the signal transmitted from the second interface of the monitoring switch circuit to the level conversion chip through the second serial port.

5. The serial port monitoring device according to claim 1, characterized in that The level conversion chip includes a first interface chip and a second interface chip. The level conversion chip converts the TTL signal transmitted by the serial port screen into a 232 signal through the first interface chip.

6. The serial port monitoring device according to claim 5, wherein The control terminal interface of the level conversion chip is connected to the first pin of the first interface chip.

7. The serial port monitoring device according to claim 6, characterized in that, The second pin of the first interface chip receives the transmission signal of the computer and increases the control value of the control terminal interface, so that the level conversion chip is in the sending state.

8. The serial port monitoring device according to claim 7, characterized in that, When the switch of the first interface chip is placed in the first position, the input signal is a TTL signal, and when the switch is placed in the second position, the output signal is a 232 signal.

9. The serial port monitoring device according to claim 8, characterized in that, The first interface chip can also keep the TTL signal unchanged.

10. The serial port monitoring device according to claim 1, characterized in that, The model of the level conversion chip is SN74AHC86, which is a logic chip and consists of four groups of exclusive-OR gates.

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