CN116226005A - Multi-serial port automatic identification method, device, computer equipment and medium - Google Patents

Multi-serial port automatic identification method, device, computer equipment and medium Download PDF

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Publication number
CN116226005A
CN116226005A CN202211594380.7A CN202211594380A CN116226005A CN 116226005 A CN116226005 A CN 116226005A CN 202211594380 A CN202211594380 A CN 202211594380A CN 116226005 A CN116226005 A CN 116226005A
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serial port
com
serial
bound
signal state
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李海龙
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Beijing Yahua Iot Technology Development Co ltd
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Beijing Yahua Iot Technology Development Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4072—Drivers or receivers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0002—Serial port, e.g. RS232C

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Information Transfer Systems (AREA)

Abstract

The invention provides a multi-serial port automatic identification method, a device, computer equipment and a medium, comprising the following steps: opening serial ports according to the COM numbers, respectively sending a custom serial port command to each serial port opened according to the COM numbers, determining the serial port replying the correct instruction as the serial port connected with the single board to be tested, determining the COM number corresponding to the serial port replying the correct instruction as the COM number to be bound, and sequentially sending control signals to the serial port connected with the single board to be tested through pins of the micro control unit; and opening the serial port according to one COM number to be bound, reading the signal state of the serial port, comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing the corresponding relation between the COM number to be bound and the serial port which receives the control signal. The invention realizes the automatic identification of the serial port COM number and the serial port, ensures the efficiency without manual participation, and avoids human errors.

Description

Multi-serial port automatic identification method, device, computer equipment and medium
Technical Field
The invention relates to the technical field of serial port function identification, in particular to a multi-serial port automatic identification method, a multi-serial port automatic identification device, computer equipment and a medium.
Background
With the development of the internet of things and informatization technologies, serial communication is increasingly widely applied in the fields of equipment control and information transmission, in the factory test process, more than one serial port, sometimes even four or five serial ports are needed for communication between an upper computer and a lower computer, different COM (component object) numbers can be generated by different serial port equipment on a computer, if a plurality of serial port equipment are inserted into the computer at the same time, the distinction between the equipment is identified, the binding between the COM numbers of the serial ports and the serial ports is required to be manually executed, the COM numbers of the serial ports are found through plugging and unplugging the serial ports, and the COM numbers corresponding to the test stations are selected by the upper computer, so that errors are easy to occur and the efficiency is low in the serial port identification process.
Therefore, how to solve the problem that the serial port COM number and the serial port identification need to be manually executed becomes a technical problem to be solved urgently by those skilled in the art and a focus of research all the time.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a multi-serial port automatic identification method, a device, a computer and a storage medium, which are used for solving the problem that serial port COM numbers and serial port identification need to be manually executed.
The first aspect of the invention provides a multi-serial port automatic identification method, which comprises the following steps:
opening serial ports according to the COM numbers, respectively sending user-defined serial port commands to the serial ports opened according to the COM numbers, determining the serial port for replying the correct command as the serial port connected with the single board to be tested, determining the COM number corresponding to the serial port for replying the correct command as the COM number to be bound, wherein the correct command is the command corresponding to the user-defined serial port command; sequentially sending control signals to serial ports connected with the single boards to be tested through pins of the micro control unit; and opening the serial port according to one COM number to be bound, reading the signal state of the serial port, comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing the corresponding relation between the COM number to be bound and the serial port which receives the control signal.
The beneficial effects are as follows: according to the multi-serial port automatic identification method provided by the invention, the COM numbers to be bound corresponding to the serial ports connected with the single boards to be detected can be identified according to the commands returned by the serial ports only by sending the self-defined serial port commands to the serial ports, and then, the COM numbers to be bound and the serial ports can be bound according to the signal states of the serial ports opened by the COM numbers to be bound only by sending control signals to the serial ports through pins of the micro control unit.
With reference to the first aspect, in a first implementation manner of the first aspect, a specific program is preconfigured in a tool card connected to a board to be tested, and when the tool card receives a custom serial port command, the specific program is used for controlling the tool card to reply a correct instruction through the serial port.
The beneficial effects are as follows: the tool card is provided with a configured appointed program, receives the command and replies a correct command, so that the recognition action can be completed effectively, the manual participation in recognition is not needed, the efficiency is improved, and the possibility of errors is reduced.
With reference to the first aspect or the first implementation manner of the first aspect, in a second implementation manner of the first aspect, pins are used for inputting and outputting high and low levels.
With reference to the second embodiment of the first aspect, in a third embodiment of the first aspect, the pin of the micro control unit sends the control signal to the serial port by performing an action of setting high and setting low.
With reference to the first aspect, in a fourth implementation manner of the first aspect, if the signal state of the serial port does not correspond to the control signal, the serial port is opened by the next COM number to be bound, the signal state of the read serial port is returned, and the signal state is compared with the control signal.
The beneficial effects are as follows: if the serial port signal state and the control signal are not corresponding, traversing all serial ports until the serial port corresponding to the signal state and the control signal is found, so that omission of the serial port can be avoided, and the efficiency is improved.
The second aspect of the present invention provides a multi-serial port automatic identification device, comprising: the instruction module is used for sending a custom serial port command to each serial port opened according to the COM number, and determining the COM number corresponding to the serial port replying the correct instruction as the COM number to be bound; the control module is used for sequentially sending control signals to a serial port connected with the single board to be tested through pins of the micro control unit; the reading module is used for opening the serial port according to a COM number to be bound and reading the signal state of the serial port; and the comparison module is used for comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing a corresponding relation between the COM code to be bound and the serial port which receives the control signal.
The beneficial effects are as follows: according to the multi-serial port automatic identification method provided by the invention, the COM numbers to be bound corresponding to the serial ports connected with the single boards to be detected can be identified according to the commands returned by the serial ports only by sending the self-defined serial port commands to the serial ports, and then, the COM numbers to be bound and the serial ports can be bound according to the signal states of the serial ports opened by the COM numbers to be bound only by sending control signals to the serial ports through pins of the micro control unit.
With reference to the second aspect, in a first embodiment of the second aspect, pins in the control module are used for inputting and outputting high and low levels, and pins of the micro control unit send control signals to the serial port by executing actions of preset high and preset low.
The beneficial effects are as follows: the pin performs the actions of preset high and preset low so as to send a control signal to the serial port.
In combination with the second aspect, in a second embodiment of the second aspect, in the comparison module, the signal state of the serial port does not correspond to the control signal, and then the serial port is opened through the next COM number to be bound, the signal state of the read serial port is returned, and the signal state is compared with the control signal.
The beneficial effects are as follows: if the serial port signal state and the control signal do not correspond, traversing all serial ports until the serial port corresponding to the signal state and the control signal is found, so that serial port identification and binding omission can be avoided, and efficiency is improved.
A third aspect of the present invention provides a computer apparatus comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to perform the multi-serial automatic identification method of any one of the first aspect and alternative embodiments thereof.
A fourth aspect of the present invention provides a computer readable storage medium storing computer instructions for causing a computer to perform the multi-serial port automatic identification method of any one of the first aspect and its alternative embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the prior art solutions, the drawings that are used in the description of the embodiments or the prior art will be briefly described below, and it is apparent that the drawings in the description below are some embodiments of the present invention.
Fig. 1 shows a flowchart of a multi-serial port identification method provided by an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a one-to-four test fixture according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a multi-serial port identification device according to an embodiment of the present invention;
fig. 4 shows a schematic hardware structure of a computer device according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
The embodiment of the invention provides a multi-serial port automatic identification method, which is shown in fig. 1 and comprises the following steps:
step S001: and opening the serial ports according to the COM numbers, respectively sending a custom serial port command to each serial port opened according to the COM numbers, determining the serial port for replying the correct instruction as the serial port connected with the single board to be tested, determining the COM number corresponding to the serial port for replying the correct instruction as the COM number to be bound, and determining the correct instruction as the instruction corresponding to the custom serial port command.
In an alternative embodiment, each serial port corresponds to a unique COM number.
In an alternative implementation, after the upper computer is turned on, the upper computer will obtain the COM number list of all serial ports on the current computer.
In an alternative embodiment, the custom serial port command refers to a command to find a serial port of a tool card connected to the board to be tested.
In an alternative embodiment, when a plurality of serial ports are all connected with tool cards in the upper computer, the upper computer opens the serial ports through the COM number, and after sending a custom serial port command to the serial ports, if the serial ports opened through the COM number reply a correct instruction, only the serial port corresponding to the COM number is connected with a board to be tested, but because the plurality of serial ports are all connected with tool cards, it cannot be determined which serial port corresponds to the COM number.
In an alternative embodiment, as shown in fig. 2, only the serial port to which four boards under test are connected can return the correct command.
Step S002: and sequentially sending control signals to the serial port connected with the single board to be tested through the pins of the micro control unit.
In an alternative embodiment, the device for executing the embodiment of the invention is provided with a micro control unit, the pin of the micro control unit is connected with the serial port, and the control signal is sent to the serial port by controlling the level output by the pin of the micro control unit, because the different levels output by the pin of the control unit indicate different control signals sent to the serial port.
In an alternative embodiment, the control signal is used to control the identification and binding of the serial port and the corresponding serial port COM number.
Step S003: and opening the serial port according to one COM number to be bound, reading the signal state of the serial port, comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing the corresponding relation between the COM number to be bound and the serial port which receives the control signal.
In an alternative embodiment, if the signal state of the serial port does not correspond to the control signal, the serial port is opened by the next COM number to be bound, the signal state of the serial port is read back, and the signal state is compared with the control signal.
That is, in the embodiment of the present invention, each serial port is traversed in turn until a serial port whose signal state corresponds to the control signal is found, and the serial port is bound with the COM number for opening the serial port.
In the embodiment of the invention, the control signal is sent through the pins of the micro control unit, so that the serial port receiving the control signal can be determined, at the moment, each serial port is sequentially opened according to the COM number to be bound, the signal state of the serial port opened according to the COM number is read, and the connection relation between the COM number and the serial port of the pin receiving the control signal can be established according to the corresponding condition of the signal state and the control signal.
According to the multi-serial port automatic identification method provided by the embodiment of the invention, the COM numbers to be bound corresponding to the serial ports connected with the single boards to be detected can be identified according to the commands returned by the serial ports only by sending the custom serial port commands to the serial ports, and then, the COM numbers to be bound and the serial ports can be bound according to the signal states of the serial ports opened by the COM numbers to be bound only by sending control signals to the serial ports through pins of the micro control unit.
In an alternative embodiment, a specific program is preconfigured in the micro-control unit of the tool card connected with the to-be-tested single board, and when the tool card receives the custom serial port command, the specific program is used for controlling the tool card to reply a correct instruction through the serial port.
According to the multi-serial-port automatic identification method provided by the embodiment of the invention, the configured appointed program is arranged in the tool card, the tool card receives the command and replies the correct command, so that the identification action can be effectively completed, the manual participation in identification is not needed, the efficiency is improved, and the possibility of errors is reduced.
In an alternative embodiment, pins are used to input and output high and low levels.
In an alternative embodiment, the micro control unit of the upper computer is connected with the serial port through pins.
In an alternative embodiment, the pins of the micro control unit send control signals to the serial port by performing a preset high and then low action.
In an alternative embodiment, the high means that the pin of the micro control unit outputs a high level, and the high level is a 3.3V level, and the corresponding logic number is 1, and the low means that the pin of the micro control unit outputs a low level, and the high level is a 0V level, and the corresponding logic number is 0.
The embodiment of the invention provides a multi-serial port automatic identification device, as shown in fig. 3, comprising:
the instruction module 301 is configured to determine, for each serial port opened according to the COM number, a COM number corresponding to the serial port that replies the correct instruction as the COM number to be bound, and details are described in step S001 in the above embodiment, which is not repeated herein.
The control module 302 is configured to sequentially send a control signal to the serial port connected to the board to be tested through the pin of the micro control unit, and the details refer to the description of step S002 in the foregoing embodiment, which is not repeated herein.
The reading module 303 is configured to open the serial port according to a COM number to be bound, read a signal state of the serial port, and refer to the description of step S003 in the foregoing embodiment for details, which are not described herein again.
The comparison module 304 is configured to compare the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establish a corresponding relationship between the COM code to be bound and the serial port that receives the control signal, and the details are described in step S003 in the above embodiment, which is not repeated herein.
In an alternative embodiment, pins in the control module 302 are used to input and output high and low levels, and pins of the micro control unit send control signals to the serial port by performing actions of preset high and preset low.
In an alternative embodiment, in the comparing module 304, the signal state of the serial port does not correspond to the control signal, and the serial port is opened through the next COM number to be bound, the signal state of the serial port is read back, and the signal state is compared with the control signal.
According to the multi-serial port automatic identification device provided by the embodiment of the invention, the COM numbers to be bound corresponding to the serial ports connected with the single boards to be detected can be identified according to the commands returned by the serial ports only by sending the custom serial port commands to the serial ports, and then, the COM numbers to be bound and the serial ports can be bound according to the signal states of the serial ports opened by the COM numbers to be bound only by sending control signals to the serial ports through pins of the micro control unit.
The embodiment of the invention also provides a computer device, and fig. 4 is a schematic diagram of a hardware structure of the computer device according to an exemplary embodiment.
As shown in fig. 4, the device comprises one or more processors 401 and a memory 402, the memory 402 comprising a persistent memory, a volatile memory and a hard disk, one processor 401 being exemplified in fig. 4. The apparatus may further include: an input device 403 and an output device 404.
The processor 401, memory 402, input device 403, and output device 404 may be connected by a bus or otherwise, for example in fig. 4.
The processor 401 may be a central processing unit (Central Processing Unit, CPU). The processor 401 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 402, which is a non-transitory computer readable storage medium, includes persistent memory, volatile memory, and hard disk, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the service management method in the embodiments of the present application. The processor 401 executes various functional applications of the server and data processing, i.e., implements any of the multi-serial port identification methods described above, by running non-transitory software programs, instructions, and modules stored in the memory 402.
Memory 402 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data, etc., as needed, used as desired. In addition, memory 402 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 402 may optionally include memory located remotely from processor 401, which may be connected to the data processing apparatus via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 403 may receive input numeric or character information and generate key signal inputs related to user settings and function control. The output 404 may include a display device such as a display screen.
One or more modules are stored in the memory 402 that, when executed by the one or more processors 401, perform the method as shown in fig. 1.
The product can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. Technical details which are not described in detail in the present embodiment can be found in the embodiments shown in fig. 1 and 2.
The embodiment of the invention also provides a computer readable storage medium, as shown in fig. 5, in which computer executable instructions 501 are stored, where the computer executable instructions 501 can execute the multi-serial port identification method in any of the above method embodiments.
The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. The multi-serial port automatic identification method is characterized by being applied to an upper computer and comprising the following steps:
opening serial ports according to the COM numbers, respectively sending user-defined serial port commands to the serial ports opened according to the COM numbers, determining a serial port for replying a correct instruction as a serial port connected with a single board to be tested, determining the COM number corresponding to the serial port for replying the correct instruction as a COM number to be bound, wherein the correct instruction is an instruction corresponding to the user-defined serial port commands;
sequentially sending control signals to serial ports connected with the single boards to be tested through pins of the micro control unit;
and opening a serial port according to a COM number to be bound, reading the signal state of the serial port, comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing the corresponding relation between the COM number to be bound and the serial port which receives the control signal.
2. The multi-serial port automatic identification method of claim 1 wherein,
and a designated program is pre-configured in a tool card connected with the single board to be tested, and the designated program is used for controlling the tool card to reply a correct instruction through a serial port when the tool card receives the self-defined serial port command.
3. The multi-serial automatic identification method according to claim 1 or 2, wherein,
the pins are used for inputting and outputting high and low levels.
4. The multi-serial port automatic identification method of claim 3 wherein,
and the pins of the micro control unit send control signals to the serial port by executing actions of preset high and preset low.
5. The multi-serial port automatic identification method of claim 1 wherein,
and if the signal state of the serial port does not correspond to the control signal, opening the serial port through the next COM number to be bound, returning to the step of reading the signal state of the serial port, and comparing the signal state with the control signal.
6. A multi-serial port automatic identification device, comprising:
the instruction module is used for sending a custom serial port command to each serial port opened according to the COM number, and determining the COM number corresponding to the serial port replying the correct instruction as the COM number to be bound;
the control module is used for sequentially sending control signals to a serial port connected with the single board to be tested through pins of the micro control unit;
the reading module is used for opening the serial port according to a COM number to be bound and reading the signal state of the serial port;
and the comparison module is used for comparing the signal state with the control signal, and if the signal state of the serial port corresponds to the control signal, establishing a corresponding relation between the COM code to be bound and the serial port which receives the control signal.
7. The multi-serial automatic identification device of claim 6, wherein,
and pins in the control module are used for inputting and outputting high and low levels, and the pins of the micro control unit send control signals to the serial port by executing actions of preset high and preset low.
8. The multi-serial automatic identification device of claim 6, wherein,
and in the comparison module, if the signal state of the serial port does not correspond to the control signal, the serial port is opened through the next COM number to be bound, the signal state of the serial port is returned to be read, and the signal state is compared with the control signal.
9. A computer device, comprising:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to perform the multi-serial automatic identification method of any one of claims 1-5.
10. A computer-readable storage medium storing computer instructions for causing the computer to perform the multi-serial port automatic identification method according to any one of claims 1 to 5.
CN202211594380.7A 2022-12-13 2022-12-13 Multi-serial port automatic identification method, device, computer equipment and medium Pending CN116226005A (en)

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CN202211594380.7A CN116226005A (en) 2022-12-13 2022-12-13 Multi-serial port automatic identification method, device, computer equipment and medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211594380.7A CN116226005A (en) 2022-12-13 2022-12-13 Multi-serial port automatic identification method, device, computer equipment and medium

Publications (1)

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CN116226005A true CN116226005A (en) 2023-06-06

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