CN111010286A - Intelligent registration method and device based on serial bus, electronic equipment and medium - Google Patents
Intelligent registration method and device based on serial bus, electronic equipment and medium Download PDFInfo
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- CN111010286A CN111010286A CN201911092974.6A CN201911092974A CN111010286A CN 111010286 A CN111010286 A CN 111010286A CN 201911092974 A CN201911092974 A CN 201911092974A CN 111010286 A CN111010286 A CN 111010286A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- 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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Abstract
The invention discloses an intelligent registration method based on a serial bus, which relates to the technical field of communication and comprises the following steps of receiving a broadcast signal sent by a main control unit; judging whether the registration state is unregistered or not, and if so, generating random time Td; after waiting for the random time Td, sending a registration application request to the main control unit, and responding to the registration application request and registering the corresponding controlled unit by the main control unit; the registration status is updated as registered. The method reduces the workload of the staff and reduces the probability of missing registration. The invention also discloses an intelligent registration device based on the serial bus, electronic equipment and a computer readable storage medium.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an intelligent registration method and apparatus based on a serial bus, an electronic device, and a medium.
Background
With the development of the times, the functions of a power electronic system are more and more obvious. For example, server rooms and power operation power supply rooms are equipped with high-power alternating-current and direct-current power supply systems. The main control unit collects information and alarms abnormal conditions of all the controlled units in real time.
The communication bus between the master control unit and the controlled unit generally adopts an RS485 bus. The RS485 bus belongs to a half-duplex serial bus, supports a control architecture of 'one master and multiple slaves', and can be used for reading data of each controlled unit in turn at regular time by the master control unit.
Based on the above control architecture, in the process of opening the system, in order for the main control unit to be able to normally read the data of the controlled unit, the corresponding controlled unit must be manually registered in the registration system of the main control unit, which not only increases the workload of the staff, but also may cause the situation of missing registration.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an intelligent registration method based on a serial bus, which reduces the workload of workers and reduces the probability of missing registration.
One of the purposes of the invention is realized by adopting the following technical scheme:
an intelligent registration method based on a serial bus comprises the following steps:
receiving a broadcast signal sent by a main control unit;
judging whether the registration state is unregistered or not, and if so, generating random time Td;
after waiting for the random time Td, sending a registration application request to the main control unit, wherein the main control unit responds to the registration application request and registers a corresponding controlled unit;
the registration status is updated as registered.
Further, generating a random time Td, comprising the steps of:
obtaining a delay time interval Tu and a random number n, wherein the delay time interval Tu is larger than the time required by the controlled unit to request the completion of registration;
the random time Td is derived based on a first formula set to: td is n Tu.
Further, the method also comprises the following steps: receiving registration feedback sent by the main control unit, wherein the registration feedback is generated by the main control unit in response to a corresponding registration application request,
the time interval between the request for registration and the transmission of the request for registration from the master control unit to the master control unit is set to Tr, the time interval between the master control unit receiving the request for registration and the transmission of the registration feedback from the master control unit to the master control unit is set to Tx, and Tu > (Tr + Tx + Tc).
Further, the main control unit enters a registration mode after sending the broadcast signal, the duration of the registration mode is set to Tz, Tz > (N +1) × Tu, and N is the maximum value of the random number.
Further, the application registration request includes an ID number corresponding to the controlled unit, the registration feedback includes an ID number corresponding to the application registration request,
and matching the ID number of the controlled unit with the ID number in the registration feedback, and if the matching is successful, updating the registration state of the corresponding controlled unit to be registered.
Further, the registration feedback further includes a logical address, and when the ID number of the controlled unit is successfully matched with the ID number in the registration feedback, the logical address is associated with the corresponding controlled unit.
Further, when the main control unit receives more than two application registration requests, the main control unit refuses to respond to the application registration requests.
The second purpose of the present invention is to provide an intelligent registration device based on serial bus to reduce the workload of the operator and reduce the probability of missing registration.
The second purpose of the invention is realized by adopting the following technical scheme: an intelligent registration apparatus based on a serial bus, comprising:
the broadcast signal receiving module is used for receiving the broadcast signals sent by the main control unit;
the registration state judgment module is used for judging whether the registration state is unregistered or not, and if so, generating random time Td;
a registration request application sending module, configured to send a registration request application to the master control unit after waiting for the random time Td, where the master control unit responds to the registration request application and registers a corresponding controlled unit;
and the registration state updating module is used for updating the registration state to be registered.
It is a further object of the present invention to provide an electronic device for performing one of the above objects, comprising a processor, a storage medium, and a computer program, the computer program being stored in the storage medium, the computer program, when executed by the processor, implementing the above intelligent registration method based on a serial bus.
It is a fourth object of the present invention to provide a computer-readable storage medium storing one of the objects of the present invention, having a computer program stored thereon, which, when executed by a processor, implements the above-described intelligent registration method based on a serial bus.
Compared with the prior art, the invention has the beneficial effects that: after the main control unit sends the broadcast signal, each controlled unit can start corresponding registration, namely each unregistered controlled unit can only perform corresponding registration within a preset time period, so that normal data transmission between the main control unit and the controlled unit is prevented from being influenced; by setting the random time Td, each controlled unit can send the corresponding application registration request after waiting for the corresponding random time Td, thereby avoiding the transmission channel from being crowded so as to cause the transmission failure; according to the method, the automatic registration of the controlled unit replaces manual registration of the worker, so that the workload of the worker is reduced, and the probability of missing registration is reduced.
Drawings
FIG. 1 is a block flow diagram of a method according to one embodiment;
FIG. 2 is a flowchart showing the specific steps for generating the random time Td;
FIG. 3 is a block flow diagram of a method according to a third embodiment;
FIG. 4 is a block diagram showing the structure of an apparatus according to a fourth embodiment;
fig. 5 is a block diagram of an electronic device according to the fifth embodiment.
In the figure: 1. a broadcast signal receiving module; 2. a registration state judgment module; 3. a registration request sending application module; 4. a registration state updating module; 5. an electronic device; 51. a processor; 52. a memory; 53. an input device; 54. and an output device.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Example one
The embodiment I provides an intelligent registration method based on a serial bus, aiming at replacing manual registration of workers through automatic registration of a controlled unit, so that the workload of the workers is reduced, and the probability of missing registration is reduced.
Specifically, referring to fig. 1, the intelligent registration method includes the following steps.
And step S10, each controlled unit receives the broadcast signal sent by the main control unit. After the main control unit sends the broadcast signal, each controlled unit can start the corresponding registration process, that is, each unregistered controlled unit can only perform the corresponding registration process within a preset time period, thereby avoiding influencing the normal data transmission between the main control unit and the controlled unit.
It should be noted that the master control unit and the controlled units are connected by a serial bus, preferably by using an RS485 bus, and one master control unit may correspond to a plurality of controlled units. Since the master control unit needs to read the data of the controlled units, each controlled unit should be registered in the master control unit, so that the controlled units have a registration state, which includes unregistered and registered.
After the main control unit sends the broadcast signal, the main control unit enters a registration mode, and under the registration mode, the controlled unit can apply for registration from the main control unit. The duration of the registration mode is set to Tz and the master unit may periodically transmit a broadcast signal with a transmission period set to Tq, where Tq > Tz.
Step S20, the controlled unit determines whether the respective registration status is unregistered, and if yes, generates a random time Td. Specifically, since the registration states of the controlled units include registered and unregistered states, only unregistered controlled units need to be registered, after the controlled units receive the broadcast signals, whether the respective states are unregistered is judged, and if the respective states are unregistered, a corresponding random time Td is generated; if the registration is carried out, the next operation is not carried out, so that the overall efficiency is improved.
It should be noted that the random time Td is randomly generated by the corresponding controlled units, and the random time Td is not affected by each controlled unit when the controlled unit generates the random time Td;
step S30, after waiting for the corresponding random time Td, the unregistered controlled unit sends an application registration request to the main control unit, and the main control unit responds to the application registration request and registers the corresponding controlled unit, thereby preventing each controlled unit from registering at the same time.
Step S60, the controlled unit that completed registration updates the registration status to registered. Specifically, after the controlled unit sends the application registration request to the master control unit, the registration status of the corresponding controlled unit is updated, so that when the controlled unit sends the next broadcast model, the already registered controlled unit will not perform the above-mentioned partial steps.
In summary, by setting the random time, each controlled unit can send the corresponding application registration request after waiting for the corresponding random time, thereby avoiding the transmission channel from being congested to cause the transmission failure; the automatic registration of the controlled unit replaces manual registration of workers, so that the workload of the workers is reduced, and the probability of missing registration is reduced.
Example two
The embodiment provides an intelligent registration method based on a serial bus, which is performed on the basis of the first embodiment. Specifically, referring to fig. 1 and 2, the random time Td generated in step S20 specifically includes the following steps.
In step S201, the unregistered slave unit acquires the delay time interval Tu and the random number n. It should be noted that the random number n is a positive integer, and the master control unit may be connected to 32 controlled units, so that the maximum value of the random number n may be, but is not limited to, 32, and the master control unit is preferably connected to 20 controlled units.
The delay time interval Tu is greater than the time required for the controlled unit to request registration completion. In the above steps, since the master control unit responds to the registration request and registers the corresponding controlled unit, the time interval for sending the registration request from the controlled unit to the master control unit is set as Tr, and Tr should meet the following requirements: tu > Tr.
In step S202, the controlled unit that has acquired the delay time interval Tu and the random number n obtains the random time Td based on the first formula, which is set as: td is n Tu. Thus, the master unit communicates with only one controlled unit during the duration Tz of the master mode to reduce the probability of transmission failure.
EXAMPLE III
The embodiment provides an intelligent registration method based on a serial bus, which is performed on the basis of the second embodiment. Specifically, referring to fig. 2 and fig. 3, the intelligent registration method further specifically includes step S40.
Step S40, the registration unit that has sent the application registration request receives the registration feedback correspondingly sent by the main control unit. It should be noted that when the random numbers n corresponding to two or more controlled units are the same, two or more controlled units simultaneously send the request for registration application to the master control unit, but the master control unit responds to the request for registration application and does not perform registration, that is, the corresponding controlled unit cannot receive registration feedback, so that step S60 cannot be performed, and therefore, it is necessary to wait for the next registration opportunity, so as to reduce the probability of transmission failure or registration confusion.
The time interval from the time when the main control unit receives the application registration request to the time when the registration feedback is output is set as Tx, and the time interval from the time when the registration feedback is sent from the main control unit to the time when the registration feedback is sent to the controlled unit is set as Tc, wherein Tx and Tc meet the following requirements: tu > (Tr + Tx + Tc).
It should be noted that the time interval between the main control unit receiving the application registration request and outputting the registration feedback may be set to zero, i.e., Tx may be set to zero, such that Tu > (Tr + Tc). The controlled unit sends a registration application signal to the main control unit, the main control unit directly sends registration feedback to the corresponding controlled unit after receiving the registration application signal, and then the main control unit registers the corresponding controlled unit to ensure that the signal transmission exists in the channel, so that the method has the advantages of saving time and improving the registration efficiency.
Accordingly, the duration Tz of the registration mode should have a corresponding range, i.e., Tz > (n +1) × Tu, to ensure that all unregistered slave units are completely registered during the duration Tz of the registration mode to the maximum extent.
As a preferred technical solution, the intelligent registration method further specifically includes step S50. And step S50, matching the ID number of the controlled unit with the ID number in the registration feedback, and if the matching is successful, updating the registration state of the controlled unit to be registered.
It should be noted that the request for registration includes an ID number, where the ID number corresponds to the controlled unit, and the master control unit responds to the request for registration and generates a registration feedback, where the registration feedback also includes an ID number, and the ID number corresponds to the request for registration. That is, after a controlled unit sends a request for registration application to the master control unit, the master control unit sends corresponding registration feedback to the controlled unit, and then step S60 is executed to ensure that the controlled unit is successfully registered.
The registration feedback may also include a logical address that is unique and recorded within the corresponding registration system. When the registration status is updated after the ID number of the controlled unit is successfully matched with the ID number in the registration feedback, step S70, associating the logical address with the corresponding controlled unit is performed. Specifically, the logical address of the controlled unit itself may be updated to the logical address in the registration feedback, so that the master control unit may directly obtain the data information of the relevant controlled unit through the logical address.
Example four
The embodiment I provides an intelligent registration device based on a serial bus, aiming at replacing manual registration of workers through automatic registration of a controlled unit, so that the workload of the workers is reduced, and the probability of missing registration is reduced.
Specifically, as shown in fig. 4, the intelligent registration apparatus includes a broadcast signal receiving module 1, a registration state determining module 2, a registration application request sending module 3, and a registration state updating module 4.
The broadcast signal receiving module 1 is used for receiving broadcast signals sent by the main control unit; the registration state judgment module 2 is used for judging whether the registration state is unregistered or not, and if so, generating random time Td; the application registration request sending module 3 is used for sending an application registration request to the main control unit after waiting for the random time Td, and the main control unit responds to the application registration request and registers the corresponding controlled unit; the registration state updating module 4 is used for updating the registration state to be registered.
Preferably, the step of generating the random time Td in the registration state judgment module 2 includes the following steps: acquiring a delay time interval Tu and a random number n, wherein the delay time interval Tu is greater than the time required by the controlled unit to request the completion of registration; the random time Td is derived based on a first formula set to: td is n Tu.
Preferably, the intelligent registration apparatus further includes a registration feedback module, the registration feedback module is configured to receive registration feedback sent by the main control unit, the registration feedback is generated by the main control unit in response to a corresponding registration application request, a time interval between sending the registration application request from the controlled unit to the main control unit is set to Tr, a time interval between receiving the registration application request by the main control unit and outputting the registration feedback is set to Tx, a time interval between sending the registration feedback from the main control unit to the controlled unit is set to Tc, and Tu > (Tr + Tx + Tc).
Preferably, the main control unit enters a registration mode after sending the broadcast signal, the duration of the registration mode is set to Tz, and the duration Tz and the random number n meet the following requirements: tz > (n +1) × Tu. .
EXAMPLE five
Fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention, and as shown in fig. 4 and fig. 5, the electronic device 5 includes a processor 51, a memory 52, an input device 53, and an output device 54; the number of the processors 51 in the computer device may be one or more, and one processor 51 is taken as an example in fig. 5; the processor 51, the memory 52, the input device 53 and the output device 54 in the electronic apparatus 5 may be connected by a bus or other means, and the bus connection is exemplified in fig. 5.
The memory 52 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the serial bus-based intelligent registration method in the embodiment of the present invention, the program instructions/modules include the broadcast signal receiving module 1, the registration state judging module 2, the registration request sending module 3, and the registration state updating module 4 in the serial bus-based intelligent registration method. The processor 51 executes various functional applications and data processing of the electronic device 5 by running software programs, instructions/modules stored in the memory 52, that is, the serial bus-based intelligent registration method of any embodiment or combination of embodiments of the first to third embodiments is realized.
The memory 52 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. The memory 52 may further be arranged to comprise memory located remotely with respect to the processor 51, which may be connected to the electronic device 5 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.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the above intelligent registration method based on a serial bus, where the method includes:
receiving a broadcast signal sent by a main control unit;
judging whether the registration state is unregistered or not, and if so, generating random time Td;
after waiting for the random time Td, sending a registration application request to the main control unit, and responding to the registration application request and registering the corresponding controlled unit by the main control unit;
the registration status is updated as registered.
Of course, the embodiments of the present invention provide a computer-readable storage medium whose computer-executable instructions are not limited to the above method operations.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FlASH Memory (FlASH), a hard disk or an optical disk of a computer, and includes several instructions to enable an electronic device (which may be a mobile phone, a personal computer, a server, or a network device) to execute the intelligent registration method based on a serial bus according to any embodiment or combination of embodiments of the first to third embodiments of the present invention.
It should be noted that, in the above-mentioned embodiment of intelligent registration of a serial bus, the included units and modules are merely divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be implemented. In addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. An intelligent registration method based on a serial bus is characterized by comprising the following steps:
receiving a broadcast signal sent by a main control unit;
judging whether the registration state is unregistered or not, and if so, generating random time Td;
after waiting for the random time Td, sending a registration application request to the main control unit, wherein the main control unit responds to the registration application request and registers a corresponding controlled unit;
the registration status is updated as registered.
2. The intelligent serial bus based registration method of claim 1, wherein generating a random time Td comprises the steps of:
obtaining a delay time interval Tu and a random number n, wherein the delay time interval Tu is larger than the time required by the controlled unit to request the completion of registration;
the random time Td is derived based on a first formula set to: td is n Tu.
3. The intelligent serial bus based registration method of claim 2, further comprising the steps of: receiving registration feedback sent by the main control unit, wherein the registration feedback is generated by the main control unit in response to a corresponding registration application request,
the time interval between the request for registration and the transmission of the request for registration from the master control unit to the master control unit is set to Tr, the time interval between the master control unit receiving the request for registration and the transmission of the registration feedback from the master control unit to the master control unit is set to Tx, and Tu > (Tr + Tx + Tc).
4. The intelligent serial bus based registration method according to claim 3, wherein the master control unit enters a registration mode after sending the broadcast signal, the duration of the registration mode is set to Tz, and the duration Tz and the random number n meet the following requirements: tz > (n +1) × Tu.
5. The intelligent serial bus based registration method of claim 3, wherein the application registration request includes an ID number corresponding to the controlled unit, the registration feedback includes an ID number corresponding to the application registration request,
and matching the ID number of the controlled unit with the ID number in the registration feedback, and if the matching is successful, updating the registration state of the corresponding controlled unit to be registered.
6. The intelligent serial bus based registration method of claim 5, wherein the registration feedback further comprises a logical address, and when the ID number of the controlled unit is successfully matched with the ID number in the registration feedback, the logical address is associated with the corresponding controlled unit.
7. The serial bus based intelligent registration method of any one of claims 3 to 6, wherein when the master control unit receives more than two application registration requests, the master control unit refuses to respond to the application registration requests.
8. An intelligent registration apparatus based on a serial bus, comprising:
the broadcast signal receiving module is used for receiving the broadcast signals sent by the main control unit;
the registration state judgment module is used for judging whether the registration state is unregistered or not, and if so, generating random time Td;
a registration request application sending module, configured to send a registration request application to the master control unit after waiting for the random time Td, where the master control unit responds to the registration request application and registers a corresponding controlled unit;
and the registration state updating module is used for updating the registration state to be registered.
9. An electronic device comprising a processor, a storage medium, and a computer program stored in the storage medium, wherein the computer program, when executed by the processor, implements the serial bus based intelligent registration method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the serial bus based intelligent registration method of any one of claims 1 to 7.
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| CN112968981A (en) * | 2021-03-18 | 2021-06-15 | 四川虹美智能科技有限公司 | Indoor unit address change processing method and device in multi-split system |
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