CN113141577B - Data transmission method and device and terminal equipment - Google Patents
Data transmission method and device and terminal equipment Download PDFInfo
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- CN113141577B CN113141577B CN202010058258.2A CN202010058258A CN113141577B CN 113141577 B CN113141577 B CN 113141577B CN 202010058258 A CN202010058258 A CN 202010058258A CN 113141577 B CN113141577 B CN 113141577B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
Abstract
The application is applicable to the technical field of Internet of things, and provides a data transmission method, a data transmission device and terminal equipment, wherein the data transmission method comprises the following steps: acquiring a data acquisition instruction, wherein the data acquisition instruction comprises target relay transmission times and current relay transmission times; determining a corresponding data uploading interval period number based on the target relay transmission times and the current relay transmission times; wherein the number of data upload interval cycles is inversely proportional to the number of current relay transmissions; and uploading the data acquired based on the data acquisition instruction when the number of the data uploading interval periods is reached. The data acquisition method and the data acquisition system can improve the control efficiency of data transmission and can complete data acquisition.
Description
Technical Field
The application belongs to the technical field of internet of things, and particularly relates to a data transmission method and device and terminal equipment.
Background
In the traditional communication of the wireless equipment local area network of the internet of things, two communication methods are roughly included: broadcast and fixed path. The broadcast communication method is suitable for unidirectional control, and is a difficult problem for data acquisition of equipment with multi-level links; the fixed path communication method solves the problem of single-device data acquisition, but the execution efficiency of group device control is not high.
Disclosure of Invention
In order to solve the problem that a broadcast communication method in the related art is difficult to acquire data of terminal equipment with multi-level links, the embodiment of the application provides a data transmission method and device and the terminal equipment.
The application is realized by the following technical scheme:
in a first aspect, an embodiment of the present application provides a data transmission method, which is applied to a terminal device, and the method includes:
acquiring a data acquisition instruction, wherein the data acquisition instruction comprises target relay transmission times and current relay transmission times;
determining a corresponding data uploading interval period number based on the target relay transmission times and the current relay transmission times; wherein the number of data upload interval cycles is inversely proportional to the number of current relay transmissions;
and uploading the data acquired based on the data acquisition instruction when the number of the data uploading interval periods is reached.
In a second aspect, an embodiment of the present application provides a data transmission method, which is applied to a gateway, and the method includes:
generating a data acquisition instruction, wherein the data acquisition instruction comprises target relay transmission times and current relay transmission times;
broadcasting the data acquisition instruction to terminal equipment wirelessly connected with the gateway; the data acquisition instruction is used for instructing the terminal equipment to determine a corresponding data uploading interval period number based on the target relay transmission number and the current relay transmission number, and uploading data acquired based on the data acquisition instruction when the data uploading interval period number is reached.
In a third aspect, an embodiment of the present application provides a data transmission apparatus, which is applied to a terminal device, and the apparatus includes:
the instruction acquisition module is used for acquiring a data acquisition instruction, and the data acquisition instruction comprises target relay transmission times and current relay transmission times;
the determining module is used for determining the corresponding data uploading interval period number based on the target relay transmission times and the current relay transmission times; wherein the number of data upload interval cycles is inversely proportional to the number of current relay transmissions;
and the data uploading module is used for uploading the data acquired based on the data acquisition instruction when the number of the data uploading interval periods is reached.
In a fourth aspect, an embodiment of the present application provides a data transmission apparatus, which is applied to a gateway, and the apparatus includes:
the instruction generation module is used for generating a data acquisition instruction, and the data acquisition instruction comprises target relay transmission times and current relay transmission times;
the broadcast module is used for broadcasting the data acquisition instruction to terminal equipment wirelessly connected with the gateway; the data acquisition instruction is used for instructing the terminal equipment to determine a corresponding data uploading interval period number based on the target relay transmission number and the current relay transmission number, and uploading data acquired based on the data acquisition instruction when the data uploading interval period number is reached.
In a fifth aspect, an embodiment of the present application provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the data transmission method according to any one of the first aspect when executing the computer program.
In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the data transmission method according to any one of the first aspect, or performs the data transmission method according to any one of the first aspect.
In a seventh aspect, an embodiment of the present application provides a computer program product, which, when run on a terminal device, causes the terminal device to execute the data transmission method described in any one of the above first aspects, or execute the data transmission method described in any one of the above first aspects.
Compared with the prior art, the embodiment of the application has the advantages that:
according to the data acquisition method and the data acquisition device, the data acquisition instruction is obtained, the data uploading interval period number corresponding to the current terminal device is determined according to the target relay transmission time number and the current relay transmission time number in the data acquisition instruction, and when the data uploading interval period number is reached, the data acquired based on the data acquisition instruction is uploaded, so that the terminal device of the multi-level link of the gateway can upload data at the same time, the problem that the data acquisition of the terminal device with the multi-level link is difficult in the broadcast communication method can be solved, the control efficiency can be improved, and the data acquisition can be completed.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the specification.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an application system of a data transmission method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 4 is a schematic data transmission diagram of a gateway and a terminal device according to an embodiment of the present application;
fig. 5 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 6 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 7 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 8 is a schematic flowchart of a data transmission method according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;
fig. 12 is a schematic structural diagram of a gateway according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
In the traditional communication of the wireless equipment local area network of the internet of things, two communication methods are roughly included: broadcast and fixed path. The broadcast communication method is suitable for unidirectional control, and is a difficult problem for data acquisition of equipment with multi-level links; the fixed path communication method solves the problem of single-device data acquisition, but the execution efficiency of group device control is not high.
Based on the above problems, in the data transmission method in the embodiment of the present application, the downlink control instruction and the uplink device status information are controlled at time points, the complete primary data acquisition logic is that the gateway sends a "downlink data packet" of the data acquisition instruction, and the peripheral devices upload the "uplink data packet" of the data according to the appointed time after receiving the acquisition instruction.
Specifically, in the embodiment of the application, a data acquisition instruction is acquired, the number of data uploading interval periods corresponding to the current terminal device is determined according to the target relay transmission times and the current relay transmission times in the data acquisition instruction, and when the number of the data uploading interval periods is reached, the data acquired based on the data acquisition instruction is uploaded, so that the terminal devices of the multi-link of the gateway can upload data at the same time, the problem that the data acquisition of the terminal devices with the multi-link is difficult in the broadcast communication method can be solved, the control efficiency of data transmission can be improved, and the data acquisition can be completed.
For example, the embodiment of the present application may be applied to a system as shown in fig. 1, where the gateway 10, the terminal device 1, the terminal device 2, and the terminal device N form an application system of the data transmission method, and N is an integer greater than 2.
Specifically, the gateway 10 generates a data acquisition instruction and then sends the data acquisition instruction to the terminal device 1, after receiving the data acquisition instruction, the terminal device 1 forwards the data acquisition instruction to the terminal device 2 in the next data sending period, and after receiving the data acquisition instruction, the terminal device 2 forwards the data acquisition instruction to the terminal device N in the next data sending period, thereby realizing the transmission of the data acquisition instruction. Each terminal device determines the number of data uploading interval periods based on the target relay transmission times and the respective current relay transmission times, and uploads the data acquired based on the data acquisition instruction when the number of the data uploading interval periods is reached.
It should be noted that terminal device 1 may be a level 0 device, terminal device 2 may be a level 1 device, terminal device N may be an N-1 device, and each level of device may include multiple terminal devices, and fig. 1 is only an exemplary illustration.
The data transmission method of the present application is described in detail below with reference to fig. 1.
Fig. 2 is a schematic flow chart of a data transmission method provided in an embodiment of the present application, and referring to fig. 2, the data transmission method may be applied to a terminal device, and details of the data transmission method are as follows:
in step 101, a data acquisition instruction is obtained, where the data acquisition instruction includes a target relay transmission number and a current relay transmission number.
The target relay transmission times can be the times of relay transmission required by a set data acquisition instruction, and the current relay transmission times can be the times of current relay transmission of a data packet. For example, the target relay transmission number may be N, which indicates that the data acquisition command needs to be relayed N times, and the current relay transmission number is increased by 1 every time the data acquisition command is relayed once.
In an embodiment, step 101 may specifically be to obtain a data acquisition instruction broadcasted by the gateway.
In an embodiment, step 101 may specifically be to obtain a data acquisition instruction forwarded by the terminal device.
In an application scenario, the gateway may broadcast the data acquisition instruction to the level 0 device; the 0 th-level equipment recognizes that the current relay transmission frequency is 1, and forwards the data acquisition instruction to the 1 st-level equipment; the 1 st-level equipment recognizes that the current relay transmission frequency is 2, and forwards the data acquisition instruction to the 2 nd-level equipment; until the data acquisition instruction is forwarded to the N-1 level equipment, and the current relay transmission frequency is identified to be N.
Illustratively, the data acquisition instructions may also include a packet header, a B0 command, a gateway MAC address, an SNTP time, a packet check bit, a communication channel number, and the like. The header is used to identify the beginning of a data packet of the data acquisition instruction; the B0 command is a command field, and the device side is used for judging what action the command is used for executing after receiving the B0 command, such as a data acquisition action; the gateway MAC address is used for identifying which gateway sends the data acquisition instruction by the equipment side; the SNTP time is the Internet time, can include year, month, day, hour, minute, second, week and the like, and is used for timing and synchronizing time of the terminal equipment; the data packet check bit is used for checking whether the data packet is correct or not; the communication channel number is used for telling the terminal equipment the working frequency point (i.e. communication frequency point) of the data packet.
In step 102, a corresponding number of data upload interval periods is determined based on the target relay transmission number and the current relay transmission number.
Wherein the number of data upload interval periods is inversely proportional to the number of current relay transmissions. That is, the larger the current relay transmission frequency corresponding to a certain terminal device is, the smaller the number of data upload interval cycles corresponding to the terminal device is, so that the multistage terminal devices of the same gateway can upload data at the same time, the control efficiency can be improved, and data acquisition can be completed.
In step 103, uploading the data acquired based on the data acquisition instruction when the number of data uploading interval cycles is reached.
According to the data transmission method, after each terminal device determines the respective data uploading interval period number, the data transmission period is counted, if the corresponding data uploading interval period number is reached, the data transmission mode is switched to upload the acquired data, and the data uploading interval period number of each terminal device is determined according to the target relay transmission time and the current relay transmission time, so that the terminal devices of the multi-level link of the gateway can upload the data at the same time, the problem that the data acquisition of the terminal devices with the multi-level link is difficult in the broadcast communication method can be solved, the control efficiency of the data transmission can be improved, and the data acquisition can be completed.
Fig. 3 is a schematic flow chart of a data transmission method according to an embodiment of the present application, and referring to fig. 3, based on the embodiment shown in fig. 2, the step 102 may include:
in step 1021, a difference between the target relay transmission number and the current relay transmission number is determined.
In step 1022, the number of cycles corresponding to the difference is used as the number of cycles of the data upload interval.
When the data acquisition instruction is transmitted to a terminal device, the terminal device may obtain the target relay transmission frequency and the current relay transmission frequency in the data acquisition instruction, and then use the period number corresponding to the difference between the target relay transmission frequency and the current relay transmission frequency as the data uploading interval period number corresponding to the terminal device.
In one embodiment, the gateway includes a terminal device of a three-level link, and each level of terminal device includes four terminal devices.
Specifically, referring to fig. 4, a level 1 terminal device, a level 2 terminal device and a level 3 terminal device are sequentially arranged from inside to outside, the level 1 terminal device includes a terminal device 1-1, a terminal device 1-2, a terminal device 1-3 and a terminal device 1-4, the level 2 terminal device includes a terminal device 2-1, a terminal device 2-2, a terminal device 2-3 and a terminal device 2-4, and the level 3 terminal device includes a terminal device 3-1, a terminal device 3-2, a terminal device 3-3 and a terminal device 3-4.
The gateway broadcasts the data acquisition instruction to four terminal devices in the level 1 terminal device, such as terminal device 1-1, terminal device 1-2, terminal device 1-3 and terminal device 1-4, in the 1 st data transmission period.
The level 1 terminal device receives the data acquisition instruction broadcasted by the gateway in the 2 nd data transmission period, and forwards the data acquisition instruction to four terminal devices of the level 2 terminal device, such as terminal device 2-1, terminal device 2-2, terminal device 2-3, and terminal device 2-4. Taking the terminal device 1-1 as an example, after receiving the data acquisition instruction transmitted by the gateway, the terminal device 1-1 analyzes the instruction, obtains the number of target relay transmission times of 3 and the number of current target transmission times of 1, determines the number of data uploading interval cycles to be 2, and forwards the data acquisition instruction to the terminal device 2-1 in the level 2 terminal device.
The level 2 terminal device receives the data acquisition instruction sent by the level 1 terminal device in the 3 rd data transmission period, and forwards the data acquisition instruction to four terminal devices of the level 3 terminal device, such as terminal device 3-1, terminal device 3-2, terminal device 3-3, and terminal device 3-4. Taking the terminal device 2-1 as an example, after receiving the data acquisition instruction transmitted by the terminal device 1-1, the terminal device 2-1 analyzes the instruction, obtains the target relay transmission frequency of 3 and the current target transmission frequency of 2, determines the number of data uploading interval cycles to be 1, and simultaneously forwards the data acquisition instruction to the terminal device 3-1 in the 3 rd-level terminal device.
And the 3 rd-level terminal equipment receives the data acquisition instruction sent by the 2 nd-level terminal equipment in the 3 rd data transmission period. Taking the terminal device 3-1 as an example, after receiving the data acquisition instruction transmitted by the terminal device 2-1, the terminal device 3-1 analyzes the instruction, obtains the target relay transmission frequency of 3 and the current target transmission frequency of 3, does not need to transmit the data transmission instruction again, and determines that the data uploading interval period number is 0.
In the 3 rd data transmission period, the 1 st-level terminal device, the 2 nd-level terminal device and the 3 rd-level terminal device are simultaneously switched to a data uploading mode to upload the acquired data, so that all levels of terminal devices of the gateway can be synchronously in a data downlink state or a data uploading state, the control efficiency of data transmission of all levels of terminal devices is improved, and data acquisition can be completed.
Fig. 5 is a schematic flow chart of a data transmission method according to an embodiment of the present application, and referring to fig. 5, based on the embodiment shown in fig. 2, the data transmission method may further include:
in step 104, a working frequency point skip request broadcasted by the gateway after determining the unoccupied target working frequency point is obtained. And the work frequency point skipping request comprises the target work frequency point.
In step 105, jumping to the target working frequency point based on the target working frequency point in the working frequency point jumping request.
In some application scenarios, when two or more wireless systems may exist, for example, when multiple gateways exist, different working frequency points may be respectively assigned to a gateway a and a gateway B of the multiple gateways, so as to avoid interference of the wireless systems during working.
Specifically, according to a preset transmission protocol, all terminal devices work at a common broadcast frequency point after being powered on for the first time, for example, the wireless system has 16 corresponding fixed working frequency points, wherein 1 frequency point is a common broadcast frequency point; when the gateway A is powered on, the wireless environment around the gateway A is detected, unoccupied idle working frequency points are determined, and then a target working frequency point is selected from the unoccupied idle working frequency points; after determining the target working frequency point of the gateway A, the gateway A can inform the terminal equipment of jumping to the target working frequency point through the public broadcasting frequency point, and for non-commercial power supply equipment (such as remote control), the gateway A can jump to the target working frequency point in a way of learning with the gateway.
For example, the gateway detects a surrounding wireless environment, and the process of determining the target working frequency point may specifically be:
the method comprises the steps that a current gateway broadcasts a working frequency point occupation request after being electrified, wherein the working frequency point occupation request is used for acquiring working frequency points of other gateways occupying the working frequency points;
receiving occupied working frequency points;
determining unoccupied working frequency points in the working frequency point set according to the occupied working frequency points;
and determining a target working frequency point from the unoccupied working frequency points as the working frequency point of the current gateway.
In one embodiment, after determining a target working frequency point, a current gateway generates a working frequency point skip request containing the target working frequency point to a corresponding terminal device, and the terminal device skips to the corresponding target working frequency point for data transmission based on the target working frequency point in the working frequency point skip request.
According to the data transmission method, the work frequency point skip request broadcasted after the unoccupied target work frequency point is determined by the gateway is obtained, and the target work frequency point is skipped to the target work frequency point based on the target work frequency point in the work frequency point skip request, so that the gateway and terminal equipment at each level thereof carry out data transmission communication through the target work frequency point, and the interference of other gateways or the interference caused to the data transmission communication of other gateways can be avoided.
Fig. 6 is a schematic flow chart of a data transmission method provided in an embodiment of the present application, and referring to fig. 6, the data transmission method may be applied to a gateway, and details of the data transmission method are as follows:
in step 201, a data acquisition command is generated, where the data acquisition command includes a target relay transmission number and a current relay transmission number.
The target relay transmission times can be the times of relay transmission required by a set data acquisition instruction, and the current relay transmission times can be the times of current relay transmission of a data packet. For example, the target relay transmission number may be N, which indicates that the data acquisition command needs to be relayed N times, and the current relay transmission number is increased by 1 every time the data acquisition command is relayed once.
Illustratively, the data acquisition instructions may also include a packet header, a B0 command, a gateway MAC address, an SNTP time, a packet check bit, a communication channel number, and the like. The header is used to identify the beginning of a data packet of the data acquisition instruction; the B0 command is a command field, and the device side is used for judging what action the command is used for executing after receiving the B0 command, such as a data acquisition action; the gateway MAC address is used for identifying which gateway sends the data acquisition instruction by the equipment side; the SNTP time is the Internet time, can include year, month, day, hour, minute, second, week and the like, and is used for timing and synchronizing time of the terminal equipment; the data packet check bit is used for checking whether the data packet is correct or not; the communication channel number is used for telling the terminal equipment the working frequency point (i.e. communication frequency point) of the data packet.
In step 202, the data acquisition instruction is broadcast to the terminal device wirelessly connected to the gateway.
The data acquisition instruction is used for instructing the terminal equipment to determine the corresponding data uploading interval period number based on the target relay transmission times, and uploading the data acquired based on the data acquisition instruction when the data uploading interval period number is reached.
In an application scenario, the gateway may broadcast the data acquisition instruction to the level 0 device; the 0 th-level equipment recognizes that the current relay transmission frequency is 1, and forwards the data acquisition instruction to the 1 st-level equipment; the 1 st-level equipment recognizes that the current relay transmission frequency is 2, and forwards the data acquisition instruction to the 2 nd-level equipment; until the data acquisition instruction is forwarded to the N-1 level equipment, and the current relay transmission frequency is identified to be N.
Specifically, after receiving the data acquisition instruction, the terminal device determines the corresponding data uploading interval period number based on the target relay transmission number and the current relay transmission number in the data acquisition instruction, and uploads the data acquired based on the data acquisition instruction when the data uploading interval period number is reached.
For example, the terminal device may determine a difference between the target relay transmission number and the current relay transmission number, use a cycle number corresponding to the difference as a corresponding data uploading interval cycle number, and upload data acquired based on the data acquisition instruction when the data uploading interval cycle number is reached.
According to the data transmission method, the gateway broadcasts the data acquisition instruction to the terminal equipment, each terminal equipment counts the data transmission period after determining the respective data uploading interval period number, if the corresponding data uploading interval period number is reached, the data transmission mode is switched to upload the acquired data, and the data uploading interval period number of each terminal equipment is determined according to the target relay transmission number and the current relay transmission number, so that the terminal equipment of the multi-level link of the gateway can upload the data at the same time, the problem that the data acquisition of the terminal equipment with the multi-level link is difficult in the broadcast communication method can be solved, the control efficiency of the data transmission can be improved, and the data acquisition can be completed.
Fig. 7 is a schematic flowchart of a data transmission method according to an embodiment of the present application, and referring to fig. 7, based on the embodiment shown in fig. 6, the data transmission method may further include:
in step 203, determining unoccupied working frequency points in the working frequency point set; and the working frequency point set comprises a plurality of working frequency points.
In step 204, a target working frequency point is determined based on the unoccupied working frequency points.
In step 205, a work frequency point skip request is broadcast, where the work frequency point skip request includes the target work frequency point.
In some application scenarios, when two or more wireless systems may exist, for example, when multiple gateways exist, different working frequency points may be respectively assigned to a gateway a and a gateway B of the multiple gateways, so as to avoid interference of the wireless systems during working.
Specifically, according to a preset transmission protocol, all terminal devices work at a common broadcast frequency point after being powered on for the first time, for example, the wireless system has 16 corresponding fixed working frequency points, wherein 1 frequency point is a common broadcast frequency point; when the gateway A is powered on, the wireless environment around the gateway A is detected, unoccupied idle working frequency points are determined, and then a target working frequency point is selected from the unoccupied idle working frequency points; after determining the target working frequency point of the gateway A, the gateway A can inform the terminal equipment of jumping to the target working frequency point through the public broadcasting frequency point, and for non-commercial power supply equipment (such as remote control), the gateway A can jump to the target working frequency point in a way of learning with the gateway.
For example, the gateway detects a surrounding wireless environment, and the process of determining unoccupied idle working frequency points may specifically be:
the method comprises the steps that a current gateway broadcasts a working frequency point occupation request after being electrified, wherein the working frequency point occupation request is used for acquiring working frequency points of other gateways occupying the working frequency points;
receiving occupied working frequency points;
determining unoccupied working frequency points in the working frequency point set according to the occupied working frequency points;
and determining a target working frequency point from the unoccupied working frequency points as the working frequency point of the current gateway.
In one embodiment, after determining a target working frequency point, a current gateway generates a working frequency point skip request containing the target working frequency point to a corresponding terminal device, and the terminal device skips to the corresponding target working frequency point for data transmission based on the target working frequency point in the working frequency point skip request.
According to the data transmission method, the gateway determines unoccupied working frequency points in the working frequency point set, determines target working frequency points based on the unoccupied working frequency points, broadcasts the working frequency point skip request containing the target working frequency points, and enables the terminal equipment to skip to the target working frequency points for data transmission communication, so that interference of other gateways or interference caused to the data transmission communication of other gateways can be avoided.
Fig. 8 is a schematic flow chart of a data transmission method provided in an embodiment of the present application, and referring to fig. 8, the data transmission method may be applied to a gateway and a terminal device, and details of the data transmission method are as follows:
in step 301, the gateway generates a data acquisition command, where the data acquisition command includes the number of target relay transmissions.
In step 302, the gateway broadcasts data acquisition instructions.
In step 303, the terminal device 1 receives the data acquisition instruction, and determines the number of data upload interval periods based on the target relay transmission number and the current relay transmission number.
In step 304, the terminal device 1 forwards the data acquisition command to the terminal device N.
In step 305, the terminal device N receives the data acquisition instruction, and determines the number of data upload interval periods based on the target relay transmission number and the current relay transmission number.
In step 306, when the number of data uploading interval cycles is reached, the terminal device 1 uploads the data acquired based on the data acquisition instruction.
In step 307, when the number of data uploading interval cycles is reached, the terminal device N uploads the data acquired based on the data acquisition instruction.
According to the data transmission method, the gateway broadcasts the data acquisition instruction to the terminal equipment, each terminal equipment counts the data transmission period after determining the respective data uploading interval period number, if the corresponding data uploading interval period number is reached, the data transmission mode is switched to upload the acquired data, and the data uploading interval period number of each terminal equipment is determined according to the target relay transmission number and the current relay transmission number, so that the terminal equipment of the multi-level link of the gateway can upload the data at the same time, the problem that the data acquisition of the terminal equipment with the multi-level link is difficult in the broadcast communication method can be solved, the control efficiency can be improved, and the data acquisition can be completed.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Fig. 9 shows a block diagram of a data transmission apparatus applied to a terminal device according to an embodiment of the present application, which corresponds to the data transmission method applied to the terminal device according to the foregoing embodiment, and only shows a part related to the embodiment of the present application for convenience of description.
Referring to fig. 9, the data transmission apparatus in the embodiment of the present application may include an instruction obtaining module 401, a determining module 402, and a data uploading module 403.
The instruction obtaining module 401 is configured to obtain a data collection instruction, where the data collection instruction includes a target relay transmission frequency and a current relay transmission frequency;
a determining module 402, configured to determine, based on the target relay transmission number and the current relay transmission number, a corresponding data upload interval cycle number; wherein the number of data upload interval cycles is inversely proportional to the number of current relay transmissions;
and a data uploading module 403, configured to upload data acquired based on the data acquisition instruction when the number of data uploading interval cycles is reached.
Optionally, the instruction obtaining module 401 may be specifically configured to:
acquiring a data acquisition instruction sent by a gateway; alternatively, the first and second electrodes may be,
and acquiring a data acquisition instruction forwarded by the last terminal device.
Optionally, the determining module 402 may be specifically configured to:
determining the difference value between the target relay transmission times and the current relay transmission times;
and taking the number of cycles corresponding to the difference value as the number of cycles of the data uploading interval.
Optionally, the apparatus may further include:
the request acquisition module is used for acquiring a working frequency point skipping request broadcasted by the gateway after determining the unoccupied target working frequency point; the work frequency point skipping request comprises the target work frequency point;
and the skipping module is used for skipping to the target working frequency point based on the target working frequency point in the working frequency point skipping request.
Fig. 10 shows a block diagram of a data transmission device applied to a gateway according to an embodiment of the present application, and only shows portions related to the embodiment of the present application for convenience of description.
Referring to fig. 10, the data transmission apparatus in the embodiment of the present application may include an instruction generation module 501 and a broadcast module 502.
The instruction generating module 501 is configured to generate a data acquisition instruction, where the data acquisition instruction includes the number of target relay transmissions;
a broadcasting module 502, configured to broadcast the data acquisition instruction to a terminal device wirelessly connected to the gateway; the data acquisition instruction is used for instructing the terminal equipment to determine the corresponding data uploading interval period number based on the target relay transmission times, and uploading the data acquired based on the data acquisition instruction when the data uploading interval period number is reached.
Optionally, the apparatus may further include:
the first determining module is used for determining unoccupied working frequency points in the working frequency point set; wherein the working frequency point set comprises a plurality of working frequency points,
the second determining module is used for determining a target working frequency point based on the unoccupied working frequency points;
and the request broadcasting module is used for broadcasting a work frequency point skipping request, and the work frequency point skipping request comprises the target work frequency point.
It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/units, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and specific reference may be made to the part of the embodiment of the method, which is not described herein again.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
An embodiment of the present application further provides a terminal device, referring to fig. 11, where the terminal device 600 may include: at least one processor 610, a memory 620, and a computer program stored in the memory 620 and executable on the at least one processor 610, wherein the processor 610, when executing the computer program, implements the steps of any of the above-mentioned method embodiments, such as the steps S101 to S103 in the embodiment shown in fig. 2. Alternatively, the processor 610, when executing the computer program, implements the functions of the modules/units in the above-described device embodiments, for example, the functions of the modules 401 to 403 shown in fig. 9.
Illustratively, the computer program may be divided into one or more modules/units, which are stored in the memory 620 and executed by the processor 610 to accomplish the present application. The one or more modules/units may be a series of computer program segments capable of performing specific functions, which are used to describe the execution of the computer program in the terminal device 600.
Those skilled in the art will appreciate that fig. 11 is merely an example of a terminal device and is not limiting and may include more or fewer components than shown, or some components may be combined, or different components such as input output devices, network access devices, buses, etc.
The Processor 610 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 620 may be an internal storage unit of the terminal device, or may be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. The memory 620 is used for storing the computer program and other programs and data required by the terminal device. The memory 620 may also be used to temporarily store data that has been output or is to be output.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the embodiments of the data transmission method applied to the terminal device.
The embodiment of the present application provides a computer program product, which when running on a mobile terminal, enables the mobile terminal to implement the steps in the embodiments of the data transmission method applied to the terminal device when executed.
An embodiment of the present application further provides a gateway, and referring to fig. 12, the gateway 700 may include: at least one processor 710, a memory 720, and a computer program stored in the memory 720 and operable on the at least one processor 710, wherein the processor 710, when executing the computer program, implements the steps of any of the method embodiments described above, such as the steps S201 to S202 in the embodiment shown in fig. 6. Alternatively, the processor 710, when executing the computer program, implements the functions of the modules/units in the above-described device embodiments, such as the functions of the modules 501 to 502 shown in fig. 10.
Illustratively, the computer program may be divided into one or more modules/units, which are stored in the memory 720 and executed by the processor 710 to accomplish the present application. The one or more modules/units may be a series of computer program segments capable of performing certain functions, which are used to describe the execution of the computer program in the gateway 700.
Those skilled in the art will appreciate that fig. 12 is merely an example of a gateway and is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or different components such as input output devices, network access devices, buses, etc.
The Processor 710 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 720 may be an internal memory unit of the gateway, or an external memory device of the gateway, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. The memory 720 is used for storing the computer program and other programs and data required by the gateway. The memory 720 may also be used to temporarily store data that has been output or is to be output.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the embodiments of the data transmission method applied to the gateway.
The embodiment of the present application provides a computer program product, which when running on a mobile terminal, enables the mobile terminal to implement the steps in the embodiments of the data transmission method applied to the gateway when executed.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a gateway, a recording medium, computer Memory, Read-Only Memory (ROM), Random-Access Memory (RAM), an electrical carrier wave signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/network device and method may be implemented in other ways. For example, the above-described apparatus/network device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (9)
1. A data transmission method, applied to a terminal device of a multi-level link, the method comprising:
acquiring a data acquisition instruction, wherein the data acquisition instruction comprises target relay transmission times and current relay transmission times;
determining the difference value between the target relay transmission times and the current relay transmission times;
taking the number of cycles corresponding to the difference value as the number of cycles of the data uploading interval;
uploading data acquired based on the data acquisition instruction when the number of the data uploading interval periods is reached;
and after the terminal equipment acquires the data acquisition instruction, the data acquisition instruction is sent to the next terminal equipment in the next data sending period, and the next terminal equipment repeats the data transmission method of the current terminal equipment.
2. The data transmission method of claim 1, wherein the obtaining the data acquisition instruction comprises:
acquiring a data acquisition instruction sent by a gateway; alternatively, the first and second electrodes may be,
and acquiring a data acquisition instruction forwarded by the last terminal device.
3. The data transmission method of claim 1, wherein the method further comprises:
acquiring a working frequency point skipping request broadcasted by a gateway after determining an unoccupied target working frequency point; the work frequency point skipping request comprises the target work frequency point;
and jumping to the target working frequency point based on the target working frequency point in the working frequency point jumping request.
4. A data transmission method, applied to a gateway, the method comprising:
generating a data acquisition instruction, wherein the data acquisition instruction comprises target relay transmission times and current relay transmission times;
broadcasting the data acquisition instruction to terminal equipment of a multi-level link wirelessly connected with the gateway; the data acquisition instruction is used for indicating the terminal equipment to determine a difference value between the target relay transmission frequency and the current relay transmission frequency, taking a period number corresponding to the difference value as a data uploading interval period number, and uploading data acquired based on the data acquisition instruction when the data uploading interval period number is reached; and after the terminal equipment acquires the data acquisition instruction, the data acquisition instruction is sent to the next terminal equipment in the next data sending period, and the next terminal equipment repeats the data transmission method of the current terminal equipment.
5. The data transmission method of claim 4, wherein the method further comprises:
determining unoccupied working frequency points in the working frequency point set; the working frequency point set comprises a plurality of working frequency points;
determining a target working frequency point based on the unoccupied working frequency points;
and broadcasting a work frequency point skipping request, wherein the work frequency point skipping request comprises the target work frequency point.
6. A data transmission apparatus, applied to a terminal device of a multi-stage link, the apparatus comprising:
the instruction acquisition module is used for acquiring a data acquisition instruction, and the data acquisition instruction comprises target relay transmission times and current relay transmission times;
the determining module is used for determining a difference value between the target relay transmission frequency and the current relay transmission frequency, and taking the number of cycles corresponding to the difference value as the number of cycles of the data uploading interval;
and the data uploading module is used for uploading the data acquired based on the data acquisition instruction when the data uploading interval periodicity is reached, and after the data acquisition instruction is acquired, transmitting the data acquisition instruction to the next terminal equipment in the next data transmission period, wherein the next terminal equipment repeats the data transmission method of the current terminal equipment.
7. A data transmission apparatus, applied to a gateway, the apparatus comprising:
the instruction generation module is used for generating a data acquisition instruction, and the data acquisition instruction comprises target relay transmission times and current relay transmission times;
the broadcast module is used for broadcasting the data acquisition instruction to terminal equipment of a multi-level link wirelessly connected with the gateway; the data acquisition instruction is used for indicating the terminal equipment to determine a difference value between the target relay transmission frequency and the current relay transmission frequency, taking a period number corresponding to the difference value as a data uploading interval period number, and uploading data acquired based on the data acquisition instruction when the data uploading interval period number is reached; and after the terminal equipment acquires the data acquisition instruction, the data acquisition instruction is sent to the next terminal equipment in the next data sending period, and the next terminal equipment repeats the data transmission method of the current terminal equipment.
8. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 5 when executing the computer program.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
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