CN114553940A - Data transmission method and system based on wireless ad hoc network microservice - Google Patents
Data transmission method and system based on wireless ad hoc network microservice Download PDFInfo
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
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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
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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Abstract
The invention provides a data transmission method and a system based on wireless ad hoc network microservice, comprising the following steps: dividing each micro-service device in the wireless ad hoc network into a data production device and a data consumption device; generating data information based on preset behavior rules based on the data production equipment; and receiving the data information based on the data consumption equipment, and transmitting the data information according to a preset transmission rule. The data transmission method and system based on the wireless ad hoc network microservice effectively improve the real-time performance of the system and reduce the power consumption through the data preposed distributed computation and the data grading transmission according to the requirement.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a data transmission method and a data transmission system based on wireless ad hoc network microservice.
Background
For example only, the calculation of the internet of things can be abstracted as the formula IoT (resource). Where f () corresponds to the six operations of CRUDNL, respectively as follows:
newly building C: create (resource), i.e. new devices, such as new LED lamps, are newly built and deployed in the network;
obtaining R: read (resource), that is, obtaining the physical quantity, content and text of the network device, such as obtaining the status of the lamp;
updating U: update (resource), namely updating the attribute and content of the network device, such as turning on a light, turning off a light;
and D, deletion: delete (resource), i.e. removing old equipment, e.g. taking out damaged LED lamps from the network;
and informing N: notify (resource), that is, pushing information, and if a certain LED lamp is turned off, sending a status change push to the outside;
list L: list (resource), i.e. list all resources in the network, or resources of all control points in the device.
It should be noted that the above formula is generally applicable to the calculation of various internet of things devices.
In the prior art, the design of the internet of things is mainly based on a cloud computing model. As shown in fig. 1, most of the data needs to be uploaded to the cloud center server for intensive data processing after simple preprocessing (such as digital filtering) at the device side. The design is more suitable for discrete application scenes with wide area coverage. Such as personnel positioning, telemedicine, shared bicycles, can all be understood as discrete application scenarios. In such applications, since data processing occurs in the central server, most communication channels are also designed for a single type, i.e., individual logical channels tend to serve only one type of device. If multiple devices are accessed simultaneously, the algorithm complexity of data processing in the cloud server can be greatly increased.
In some regional control applications, most devices are device-oriented to provide a cloud computing platform. As shown in fig. 2, the interaction between the devices is mostly performed through the cloud API interconnection, or through the router and the gateway. Namely, the data needs to be transmitted from the device to the gateway and to the server, and the control signal is transmitted from the server to the gateway and then transmitted to the controlled device. The typical application scenario includes HomeKit, which is a design using iPad/AppleTV as central control equipment.
However, the above two modes have the following drawbacks:
(1) a large amount of redundant multi-level data transmission is needed, and especially a large amount of original physical quantity needs to be uploaded to a server and a gateway for processing;
(2) the real-time performance is difficult to be ensured due to the overlong end-to-end control loop;
(3) in order to meet the real-time performance, the equipment needs to be continuously powered on, a large amount of data is transmitted, and the requirement of low power consumption cannot be met.
Therefore, a new data transmission model is urgently needed in the application scenarios of low power consumption, multi-device interaction, area control and real-time reaction.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a data transmission method and system based on a wireless ad hoc network microservice, which effectively improves the real-time performance of the system and reduces power consumption through data pre-distributed computation and on-demand data hierarchical transmission.
In order to achieve the above objects and other related objects, the present invention provides a data transmission method based on a wireless ad hoc network microservice, comprising the steps of: dividing each micro-service device in the wireless ad hoc network into a data production device and a data consumption device; generating data information based on preset behavior rules based on the data production equipment; and receiving the data information based on the data consumption equipment, and transmitting the data information according to a preset transmission rule.
In an embodiment of the present invention, the data generating device and the data consuming device broadcast their own services by broadcast to construct the micro service.
In an embodiment of the present invention, the preset behavior rule is stored in the MCU of the data production device, and the preset transmission rule is stored in the storage space of the data consumption device.
In an embodiment of the present invention, the predetermined transmission rule is implemented by one or more of a markup language, a code, and a script.
In an embodiment of the present invention, the preset transmission rule performs hierarchical on-demand transmission according to a predefined scenario.
Correspondingly, the invention provides a data transmission system based on wireless ad hoc network microservice, which comprises data production equipment and data consumption equipment; the data production equipment and the data consumption equipment construct a micro service in a wireless ad hoc network;
the data production equipment is used for generating data information based on a preset behavior rule;
and the data consumption equipment is used for receiving the data information and transmitting the data information according to a preset transmission rule.
In an embodiment of the present invention, the data generating device and the data consuming device construct a micro service by broadcasting their own services.
In an embodiment of the present invention, the preset behavior rule is stored in the MCU of the data production device, and the preset transmission rule is stored in the storage space of the data consumption device.
In an embodiment of the present invention, the predetermined transmission rule is implemented by one or more of a markup language, a code, and a script.
In an embodiment of the present invention, the predetermined transmission rule performs hierarchical on-demand transmission according to a predefined scenario.
As described above, the data transmission method and system based on the wireless ad hoc network microservice of the present invention have the following beneficial effects:
(1) the data preposed distributed computation is realized by introducing a micro-service concept, so that the real-time performance of the system is improved;
(2) by rule setting, data hierarchical transmission is realized, redundant data transmission is reduced, and system power consumption is reduced.
Drawings
Fig. 1 is a schematic diagram of an architecture of a public cellular data network-based internet of things in an embodiment in the prior art;
FIG. 2 is a block diagram of an embodiment of a prior art private network gateway based IOT;
FIG. 3 is a flowchart illustrating a method for wireless ad hoc network microservice-based data transmission in accordance with an embodiment of the present invention;
FIG. 4 is a flow chart illustrating default transmission rules in one embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an architecture of an internet of things based on wireless ad hoc network microservice in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a data transmission system based on wireless ad hoc network microservice according to an embodiment of the present invention.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The wireless ad hoc network is a temporary multi-hop autonomous system consisting of a group of movable nodes with wireless receiving and transmitting devices, does not depend on preset infrastructure, has the characteristics of temporary networking, quick expansion, no control center, strong survivability and the like, has wide application prospect in military, civil and civil aspects, and is a hotspot problem in network research.
The microservice is an optimized remodeling for Service-Oriented Architecture (SOA), and a complete distributed application system is formed by a series of micro applications. Each micro service independently deployed has a service layer and a database thereof, and the micro services communicate with each other through protocols such as HTTP/REST.
The data transmission method and the system based on the wireless ad hoc network micro-service realize the preposed distributed computation of the data by introducing the micro-service concept, improve the real-time performance of the system and reduce the pressure of the server; by the principle of on-demand, the hierarchical data transmission is realized, the redundant data transmission is reduced, the system power consumption is reduced, and the practicability is high.
As shown in fig. 3, in one embodiment, the data transmission method based on the wireless ad hoc network microservice of the present invention includes the following steps:
and step S1, dividing each micro-service device in the wireless ad hoc network into a data production device and a data consumption device.
In the invention, the micro-service decomposes macroscopic computing tasks (such as automatic control of certain Internet of things equipment) into a plurality of micro-tasks, the micro-tasks are deployed in a plurality of mutually independent MCU systems distributed in an ad hoc network and are communicated with each other through an ad hoc network protocol. The original PHY/MAC/NET bottom layer protocol is reserved among all devices distributed in the ad hoc network, only various markup languages JSON/CBOR and variants thereof are adopted on an application layer, and a user-defined binary protocol can be used, and the main purposes are to issue rules, set parameters, update and select calculation. Specifically, based on the micro-service concept, the internal devices of the whole wireless ad hoc network system are divided into two types of devices according to the data trend, namely data production devices and data consumption devices.
The data producer refers to various push messages which can be generated by devices for generating data, such as PIR passive infrared devices, door magnets, undervoltage devices, gas alarms and the like. The data consumption device refers to a device for consuming data, such as an LED controller, a door lock, an alarm, a gas switch, and other proximity devices, a gateway, or a server, which subscribe to the push messages.
In the invention, the micro-service moves part of the design of the application layer to the inside of the Mesh network, namely, a certain device broadcasts the own service and execution capacity in the wireless Mesh network by broadcasting, thereby constructing the micro-service. For example, temperature sensing, humidity sensing, door magnet sensing, user keying, light control, air conditioning control, door access control, etc. broadcast their services and performance capabilities via broadcast, and then automatically or manually by the user build a simple set of microservices.
The construction of the microservice is illustrated by the specific examples below.
Temperature sensor broadcast its own capability: and (6) detecting temperature parameters.
Air conditioner thermostat's ability to broadcast itself: and controlling the air conditioner according to the temperature parameter.
A certain protocol is realized between the temperature sensor and the air conditioner thermostat, when the temperature exceeds a certain threshold value, the temperature sensor triggers an event, and the air conditioner system is controlled by the air conditioner thermostat; when the temperature reaches the target temperature, the air conditioner temperature regulator automatically enters a maintaining state, reduces the rotating speed of the compressor motor and maintains the rotating speed within a certain range.
And step S2, generating data information based on the data production equipment based on a preset behavior rule.
Specifically, the data production equipment generates data information based on preset behavior rules. And the preset behavior rules are stored in the MCU of the data production equipment and correspond to various algorithm libraries and the operation functions of various Internet of things resources. For example, for a user key, the corresponding preset behavior rule is that when the key is pressed, lighting data is generated; when the key is not pressed, no data is generated.
The preset behavior rules not only include CRUDNL, but also include various algorithms inside the data production equipment and the data consumption equipment, including digital filtering, fusion, classification, clustering, deep learning derivation and any other algorithms.
And step S3, receiving the data information based on the data consumption equipment, and transmitting the data information according to a preset transmission rule.
Specifically, the data consumption device receives the data information sent by the data production device, and transmits the data information according to a preset transmission rule. Wherein, the preset transmission rule is stored in a storage space of the data consumption device, such as RAM or FLASH. And judging the conditions in the preset transmission rule, wherein an independent rule thread is required in the MCU for reading and executing the conditions.
In an embodiment of the present invention, the predetermined transmission rule is implemented by one or more of a markup language, a code, and a script. The method is carried out.
Taking a browser as an example, a macroscopic webpage is presented, which requires both an HTML/XML/JSON markup language and a JavaScript script to realize interaction. And the rules of the browser are set by W3C/ECMA. As shown in fig. 4, in an embodiment, the predetermined transmission rule of the present invention is described by using a markup language such as JSON/CBOR, and the device-to-device interaction is implemented by using a programming language such as C/C + +/Python/JavaScript/Lua or a self-defined virtual machine assembly language.
For another example, the internet of things device management server also has a rule engine. Such rule engine data transmission is provided in JSON form, and also requires development of a provided code package, for example in Java Jar package form, or Lua/JavaScript script form. These scripts and code packages also need to be adapted into the appropriate device(s) in the JSON markup language.
In the invention, the preset transmission rule can realize the purpose of hierarchical transmission. In massive data of the internet of things, it is not easy to obtain timely, accurate and urgently needed data. A large amount of infrastructure is required, such as big data processing for data cleaning, slicing, statistics, visualization, mining, learning. But in most cases only the most timely core cues are needed. Such as the emergency prompt of the ICU patient, the emergency treatment of the elevator, etc.
The following describes a data transmission process of the internet of things based on the wireless ad hoc network microservice according to the present invention by using a specific embodiment. As shown in fig. 5, in this embodiment, the infrared sensor generates human body detection information to determine whether there is a person; the button generates state information and judges whether the button is pressed down or not; the lamp control equipment sends lighting information to the gateway when a person and/or a button is pressed according to the human body detection information and the state information, and the lighting information is sent to the server by the gateway; when no person or the button is not pressed, the information is not sent to the gateway, so that graded on-demand transmission is carried out according to the predefined scene in the preset transmission rule, transmission of redundant information is avoided, and system power consumption is reduced.
In another embodiment, for example, an ICU patient care, the ad hoc network microservice has a plurality of data producing devices and data consumer devices. The data production equipment comprises various sensors such as an oximeter, a breathing machine, a sphygmomanometer, a drop number monitor and a comprehensive monitor. When the biochemical indexes of all instruments are within a normal range, the data do not need to be forwarded to all computers and databases in real time. Because the data volume is the largest, but the data volume is the least meaningful, and the data volume is not concerned. When a single sensor such as an oximeter and a respirator breaks down, the comprehensive monitor is used as data consumption equipment, and can judge whether the equipment is sporadic or the biochemical indexes of a patient are out of order through other biochemical indexes, and prompts a nurse to intervene through a network and a local acousto-optic alarm. At this time, the data may be recorded in a database. The part of the controlled equipment, such as a breathing machine and a hanging needle pressure device can receive the instructions of the nursing instrument, and perform automatic ventilation and suspend the action of drug administration. When parameters of the sensors are abnormal and exceed the threshold value, the comprehensive monitor judges that the patient has an emergency through the internal rule engine, and the data can be directly pushed to all relevant departments, doctors and databases in real time. And recording the subsequent processing. Therefore, it can be seen that all devices will be self-managed by the microservice, and the data is also transmitted according to the situation at that time, according to the preset transmission rules, in a hierarchical and on-demand manner.
As shown in fig. 6, in one embodiment, the data transmission system based on wireless ad hoc network microservice of the present invention includes a data generating device 61 and a data consuming device 62. The data production device 61 and the data consumption device 62 construct a micro service by broadcasting their own services in a wireless ad hoc network.
The data production device 61 is configured to generate data information based on a preset behavior rule. In an embodiment of the present invention, the preset behavior rule is stored in the MCU of the data production device.
The data consuming device 62 is configured to receive the data information and perform transmission processing on the data information according to a preset transmission rule. In an embodiment of the present invention, the predetermined transmission rule is stored in a storage space of the data consuming device. The preset transmission rule is realized through one or more of markup language, codes and scripts, and can be transmitted according to the predefined scenes in a grading and on-demand manner.
In summary, the data transmission method and system based on the wireless ad hoc network microservice of the invention realize the data preposed distributed computation by introducing the microservice concept, thereby improving the real-time performance of the system; by rule setting, data hierarchical transmission is realized, redundant data transmission is reduced, and system power consumption is reduced. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Those skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A data transmission method based on wireless ad hoc network microservice is characterized in that: the method comprises the following steps:
dividing each micro-service device in the wireless ad hoc network into a data production device and a data consumption device;
generating data information based on preset behavior rules based on the data production equipment;
and receiving the data information based on the data consumption equipment, and transmitting the data information according to a preset transmission rule.
2. The data transmission method based on the wireless ad hoc network microservice according to claim 1, wherein: the data production device and the data consumption device broadcast their own services by broadcasting to construct a microservice.
3. The data transmission method based on the wireless ad hoc network microservice according to claim 1, wherein: and the preset behavior rule is stored into the MCU of the data production equipment, and the preset transmission rule is stored into the storage space of the data consumption equipment.
4. The data transmission method based on the wireless ad hoc network microservice according to claim 1, wherein: the preset transmission rule is realized by one or more of a markup language, a code and a script.
5. The data transmission method based on the wireless ad hoc network microservice according to claim 1, wherein: and the preset transmission rule carries out graded transmission according to the predefined scene.
6. A data transmission system based on wireless ad hoc network microservice is characterized in that: the system comprises a data production device and a data consumption device; the data production equipment and the data consumption equipment construct a micro-service in a wireless ad hoc network;
the data production equipment is used for generating data information based on a preset behavior rule;
and the data consumption equipment is used for receiving the data information and transmitting the data information according to a preset transmission rule.
7. The wireless ad-hoc network microservice-based data transmission system according to claim 6, wherein: the data production device and the data consumption device construct micro-services by broadcasting services of the data production device and the data consumption device.
8. The wireless ad-hoc network microservice-based data transmission system according to claim 6, wherein: and the preset behavior rule is stored into the MCU of the data production equipment, and the preset transmission rule is stored into the storage space of the data consumption equipment.
9. The wireless ad-hoc network microservice-based data transmission system according to claim 6, wherein: the preset transmission rule is realized by one or more of a markup language, a code and a script.
10. The wireless ad-hoc network microservice-based data transmission system according to claim 6, wherein: and the preset transmission rule carries out graded transmission according to the predefined scene.
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CN105323158A (en) * | 2014-07-31 | 2016-02-10 | 三星电子株式会社 | System and method of controlling data transmission of external apparatus connected to gateway |
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