CN112702317A - Communication protocol optimization method based on intelligent gateway - Google Patents
Communication protocol optimization method based on intelligent gateway Download PDFInfo
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Abstract
The invention discloses a communication protocol optimization method based on an intelligent gateway, which comprises the steps of receiving a protocol communication request according to a protocol stack; searching a corresponding protocol library in the dynamic protocol library by using the protocol library identifier in the request; constructing a communication model based on the corresponding protocol library, and allocating a unique device identifier for a third-party channel; and after the third-party channel successfully loads the corresponding protocol library, initializing a corresponding general communication channel according to configuration parameter information and performing interactive transmission. The invention finds out the corresponding unique protocol file by matching the protocol library, and eliminates the influence and interference of irrelevant factors on the basis of determining the unique protocol communication interaction by combining the constructed communication model and the optimized model, thereby solving the dilemma that the existing equipment with different styles needs to research and develop new system upgrading software, reducing the later maintenance cost and greatly improving the uniformity and the efficiency of the communication interaction.
Description
Technical Field
The invention relates to the technical field of communication protocol optimization of intelligent gateways, in particular to a communication protocol optimization method based on an intelligent gateway.
Background
With the increasing popularization of intelligent home systems, more and more types of accessible equipment of the intelligent home systems are required, for example, a central air conditioner, a fresh air system, a background music system and an intelligent lamp are greatly different in communication modes, protocols and interaction adopted by the equipment of different manufacturers, so that the home systems need to be purposefully re-developed for each type of equipment or upgrade system software, the later-stage maintenance cost of the system is increased, and the development iteration management difficulty of software functions is high.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
Therefore, the invention provides a communication protocol optimization method based on an intelligent gateway, which can optimize the communication interaction problem of the unified intelligent gateway while reducing the maintenance cost.
In order to solve the technical problems, the invention provides the following technical scheme: the method comprises the steps of receiving a protocol communication request according to a protocol stack; searching a corresponding protocol library in the dynamic protocol library by using the protocol library identifier in the request; constructing a communication model based on the corresponding protocol library, and allocating a unique device identifier for a third-party channel; and after the third-party channel successfully loads the corresponding protocol library, initializing a corresponding general communication channel according to configuration parameter information and performing interactive transmission.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: searching the corresponding protocol library comprises the steps of inquiring whether the corresponding protocol library exists locally or not, and if the corresponding protocol library does not exist locally, acquiring the corresponding protocol library from a cloud end according to the protocol library identification.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: receiving the protocol communication request, wherein the protocol communication request comprises the steps of acquiring node attributes and state information based on an edge strategy and transmitting a communication instruction; receiving the communication instruction, and respectively performing remote control, awakening and diagnosis; and carrying out protocol conversion on the sensing network and the communication network, uniformly packaging standard format data transmitted on a protocol adaptation layer and transmitting the standard format data to the protocol library.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: constructing the communication model includes establishing an objective function using the communication request signal quality historical data range frequency, as follows,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: signal quality determination, R, of said communication request signal quality history datak: range function, Jk: frequency function, k: total signal index value, N: detection of the Environment, Rankk: the signal level of the communication request signal quality history data in the protocol library.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: adding the average value of the signal intensity of the historical communication protocol and the average value of the signal intensity of the current communication protocol into the objective function as decision factors; and defining related data influencing signal detection as an error rate, and substituting the error rate into the objective function to form a communication decision optimization model.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: the communication decision-making optimization model includes,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target communication request signal quality, { Lmink，Lmaxk}: range of alternative target communication request signals, Rk: range function, Fit, of alternative communication protocol signalsk: average value of the historical signal and the current detection signal, Dk: decision making judgment, W1: historical signal quality data error affects error rate, W2: target signal quality data error affects error rate, W3: detecting the error rate of environmental error influence by historical and target signal quality data; the optimization model outputs an optimal communication protocol decision based on the parameter information.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: the configuration parameters include status data, control data, and workpiece task data.
As a preferred scheme of the communication protocol optimization method based on the intelligent gateway, the method comprises the following steps: and a protocol library description file is arranged in the protocol library and comprises protocol description, protocol library identification, equipment type and configuration parameter description information.
The invention has the beneficial effects that: the invention finds out the corresponding unique protocol file by matching the protocol library, and eliminates the influence and interference of irrelevant factors on the basis of determining the unique protocol communication interaction by combining the constructed communication model and the optimized model, thereby solving the dilemma that the existing equipment with different styles needs to research and develop new system upgrading software, reducing the later maintenance cost and greatly improving the uniformity and the efficiency of the communication interaction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic flowchart of a communication protocol optimization method based on an intelligent gateway according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a communication gateway support protocol framework of a communication protocol optimization method based on an intelligent gateway according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a communication protocol optimization method based on an intelligent gateway, including:
s1: a protocol communication request is received according to a protocol stack. It should be noted that receiving the protocol communication request includes:
acquiring node attributes and state information based on an edge strategy and transmitting a communication instruction;
receiving a communication instruction, and respectively performing remote control, awakening and diagnosis;
and carrying out protocol conversion on the sensing network and the communication network, uniformly packaging standard format data transmitted on the protocol adaptation layer and transmitting the standard format data to the protocol library.
S2: and searching the corresponding protocol library in the dynamic protocol library by using the protocol library identifier in the request. It should be noted that, the step of searching the corresponding protocol library includes:
inquiring whether a corresponding protocol library exists locally or not, and if not, acquiring the corresponding protocol library from the cloud according to the protocol library identification;
the protocol library is provided with a protocol library description file which comprises protocol description, protocol library identification, equipment type and configuration parameter description information.
S3: and constructing a communication model based on the corresponding protocol library, and allocating the unique equipment identifier for the third-party channel. It should be further noted that the building of the communication model includes:
the communication request signal quality history data range frequency is used to establish an objective function, as follows,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: signal quality determination of communication request signal quality history data, Rk: range function, Jk: frequency function, k: total signal index value, N: detection of the Environment, Rankk: signal level of communication request signal quality history data in a protocol library;
adding the average value of the signal intensity of the historical communication protocol and the average value of the signal intensity of the current communication protocol into a target function as decision factors;
defining relevant data influencing signal detection as an error rate, substituting the error rate into a target function, and forming a communication decision optimization model;
the communication decision-making optimization model includes,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target communication request signal quality, { Lmink，Lmaxk}: range of alternative target communication request signals, Rk: range function, Fit, of alternative communication protocol signalsk: average value of the historical signal and the current detection signal, Dk: decision making judgment, W1: historical signal quality data error affects error rate, W2: target signal quality data error affects error rate, W3: detecting the error rate of environmental error influence by historical and target signal quality data;
the optimization model outputs an optimal communication protocol decision based on the parameter information.
S4: and after the third-party channel successfully loads the corresponding protocol library, initializing the corresponding general communication channel according to the configuration parameter information and performing interactive transmission. It should be further noted that, the configuration parameters include:
status data, control data, and workpiece task data.
Referring to fig. 2, communication protocols to be realized by the intelligent communication gateway prophase planning include DL/T634.5-101 telecontrol equipment and system standard transmission protocol subset, DL/T634.5-104 telecontrol equipment and system standard transmission protocol subset, DL/T860 substation communication network and system (IEC61850), MQTT message queue telemetry transmission protocol, COAP resource limited application protocol, MODBUS protocol, DL/T645 protocol, low-voltage power line broadband carrier communication protocol, H264 ITU-T video codec standard and Wifi/lora private protocol.
It should be further noted that the protocol supported by the southbound terminal of the intelligent gateway is a standard protocol and a proprietary protocol, the standard protocol is 645, modbus,101/104,61850, mqtt, coach, h264, the protocol built in the intelligent gateway processes apps, defines the standard of app interfaces, and designs the following mechanism:
typedef struct{
a protocol name; // protocol name
DeviceId; // terminal ID
ComType; // communication mode
(probe) (in); the data probe is used for checking whether the input data is the app processing message;
int (tget) (in, out); // data processing hooks; processing data and returning data required by the edge computing gateway;
int (, set) (type, control); // terminal control interface; currently available are power on/off, switch on/off, parameter modification.
}ProtInf；
after the app is registered, the app nodes are added to an app linked list corresponding to the communication interface, after the communication interface receives data, whether the use protocol of the data is a standard protocol is detected, if the use protocol is the standard protocol, a processing hook of the standard protocol is called to process the message, and after the processing is finished, the data required by the intelligent gateway is output through outBuf. The output buf is defined as follows:
{
DeviceId; deviceId of acquired data
A Timestamp; // data acquisition time
Length; // data length
Buf; // data buf
}
Data buf is variable-length buf, which is a collection of data types and data values.
The definition is defined with reference to section 5.1 data in the IEC-62056.62 application layer data exchange protocol.
{
dataType；
value；
}
The private protocol apps also follow the rules described above.
The data of the output buf is analyzed and processed by the intelligent gateway and is stored in a local storage system; and finally, forwarding the data to a cloud platform or a power grid master station system.
Example 2
In order to verify and explain the technical effect adopted in the method of the present invention, in the embodiment, a traditional communication gateway protocol method is selected and compared with the method of the present invention for comparison and test, and the test result is compared by means of scientific demonstration, so as to verify the real effect of the method of the present invention.
In order to verify that the method of the present invention has higher applicability, uniformity and practicability compared with the conventional method, the present embodiment respectively performs real-time measurement and comparison on the communication protocol optimization of the simulation intelligent gateway by using the conventional method and the method of the present invention.
And (3) testing environment: (1) selecting a radio frequency communication work as 433MHz, wherein a frequency band is 400-464 MHz;
(2) the channel bandwidth is 200kHz, and the available channel is set to be 300;
(3) testing a CC1101 chip with GDO2 as its digital pin;
(4) the air transmission rate is 200kbit/s, the air transmission time is 880us, and the receiving state RX is converted into the transmitting state TX.
Table 1: data results are shown in the comparative table.
Referring to table 1, it can be seen that, under the same test conditions, the error value of the conventional method is large, the protocol transmission integrity is low, and the method of the present invention is significantly improved compared to the conventional method, thereby verifying the real effect of the method of the present invention.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A communication protocol optimization method based on an intelligent gateway is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
receiving a protocol communication request according to a protocol stack;
searching a corresponding protocol library in the dynamic protocol library by using the protocol library identifier in the request;
constructing a communication model based on the corresponding protocol library, and allocating a unique device identifier for a third-party channel;
and after the third-party channel successfully loads the corresponding protocol library, initializing a corresponding general communication channel according to configuration parameter information and performing interactive transmission.
2. The intelligent gateway-based communication protocol optimization method of claim 1, wherein: the looking up of the corresponding said protocol library comprises,
and inquiring whether the corresponding protocol library exists locally or not, and if not, acquiring the corresponding protocol library from the cloud according to the protocol library identification.
3. The intelligent gateway based communication protocol optimization method according to claim 1 or 2, wherein: receiving the protocol communication request includes receiving a request for a protocol communication,
acquiring node attributes and state information based on an edge strategy and transmitting a communication instruction;
receiving the communication instruction, and respectively performing remote control, awakening and diagnosis;
and carrying out protocol conversion on the sensing network and the communication network, uniformly packaging standard format data transmitted on a protocol adaptation layer and transmitting the standard format data to the protocol library.
4. The intelligent gateway based communication protocol optimization method of claim 3, wherein: constructing the communication model may include,
an objective function is established using the communication request signal quality history data range frequency, as follows,
Mk＝wRk+(1-w)Jk
Rk＝(Lk-Lmink)÷(Lmaxk-Lmink)
Jk＝(Rankk-1)÷(N-1)
wherein M isk: signal quality determination, R, of said communication request signal quality history datak: range function, Jk: frequency function, k: total signal index value, N: detection of the Environment, Rankk: the signal level of the communication request signal quality history data in the protocol library.
5. The intelligent gateway-based communication protocol optimization method of claim 4, wherein: also comprises the following steps of (1) preparing,
adding the historical communication protocol signal intensity average value and the current communication protocol signal intensity average value into the objective function as decision factors;
and defining related data influencing signal detection as an error rate, and substituting the error rate into the objective function to form a communication decision optimization model.
6. The intelligent gateway-based communication protocol optimization method of claim 5, wherein: the communication decision-making optimization model includes,
Dk＝W1Rk+W2(Fitk-Pi)+W3
Pi∈{Lmink，Lmaxk}
wherein, Pi: target communication request signal quality, { Lmink，Lmaxk}: range of alternative target communication request signals, Rk: range function, Fit, of alternative communication protocol signalsk: average value of the historical signal and the current detection signal, Dk: decision making judgment, W1: historical signal quality data error affects error rate, W2: eyes of a userError-affecting error rate, W, of signal quality data3: detecting the error rate of environmental error influence by historical and target signal quality data;
the optimization model outputs an optimal communication protocol decision based on the parameter information.
7. The intelligent gateway-based communication protocol optimization method of claim 6, wherein: the configuration parameters include status data, control data, and workpiece task data.
8. The intelligent gateway-based communication protocol optimization method of claim 7, wherein: and a protocol library description file is arranged in the protocol library and comprises protocol description, protocol library identification, equipment type and configuration parameter description information.
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