CN116233301A - Method, system and device for configuring WiFisensing by utilizing android system - Google Patents

Method, system and device for configuring WiFisensing by utilizing android system Download PDF

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Publication number
CN116233301A
CN116233301A CN202310187627.1A CN202310187627A CN116233301A CN 116233301 A CN116233301 A CN 116233301A CN 202310187627 A CN202310187627 A CN 202310187627A CN 116233301 A CN116233301 A CN 116233301A
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China
Prior art keywords
wifi
channel state
state information
android system
service process
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CN202310187627.1A
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Chinese (zh)
Inventor
郭志明
尹继圣
刘大照
区信诚
廖烈泉
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Shenzhen Ganzhen Intelligent Co ltd
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Shenzhen Ganzhen Intelligent Co ltd
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Priority to CN202310187627.1A priority Critical patent/CN116233301A/en
Publication of CN116233301A publication Critical patent/CN116233301A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/724092—Interfacing with an external cover providing additional functionalities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/4881—Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Telephonic Communication Services (AREA)

Abstract

In order to overcome the defects in the prior art, the invention provides a method, a system and a device for configuring WiFisensing by utilizing an android system, which comprise the following steps: creating at least 1 perception service process in the android system; the perception service process establishes service with a local interface in the android system; after a preset APP in the android system loads a so library corresponding to WIFI to be detected through the local interface, the preset APP is used as a client to be accessed into the android system; acquiring channel state information of WIFI to be detected by calling, setting and obtaining the preset APP; the method provided by the invention has the advantages of simple flow and high efficiency, and can realize the calling and setting of the android platform to the channel state information, thereby improving the application range of the channel state information.

Description

Method, system and device for configuring WiFisensing by utilizing android system
Technical Field
The invention relates to the field of android systems, in particular to a method, a system and a device for configuring WiFisensing by utilizing an android system.
Background
Existing WiFi sensing methods can be divided into model-based methods and learning-based methods. Model-based approaches help us understand the underlying WiFi sensing mechanisms, designing periodic or single motion sensing methods such as breathing and falls. While learning-based deep learning models were developed for computer vision and natural language processing tasks, they demonstrate the ability to handle high-and multi-modal data problems. These methods inspire the application of deep learning in WiFi sensing from aspects of data preprocessing, network design, learning targets, etc.
As can be seen, most of the existing WiFi sensing methods are based on the computer system; with the development of society, the usage rate of portable office equipment represented by mobile phones is far greater than that of computers, so a method, system and device for configuring wifi sensing by using android system are needed to be developed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method, a system and a device for configuring WiFinsing by using an android system, which are used for solving at least one of the technical problems.
Specifically, the technical scheme is as follows:
a method of configuring wifi sensing with an android system, comprising:
creating at least 1 perception service process in the android system;
the perception service process establishes service with a local interface in the android system;
after a preset APP in the android system loads a so library corresponding to WIFI to be detected through the local interface, the preset APP is used as a client to be accessed into the android system;
and calling, setting and acquiring channel state information of the WIFI to be detected through the preset APP.
The "service is established between the perceived service process and a local interface in the android system", when:
and communicating the perception service process with a local interface in the android system through a binder mechanism.
The "calling, setting and obtaining channel state information through the preset APP" includes:
creating at least 1 data acquisition service process in the android system;
the data acquisition service process acquires channel state information of the WIFI to be detected;
the preset APP obtains, calls or sets the data corresponding to the channel state information through the perception service process.
The channel state information "of the WIFI to be detected includes:
one or more of netlink header, CSI frame header, original CSI body.
The "the preset APP obtains, calls, or sets data corresponding to the channel state information through the service aware process" includes:
the preset APP is accessed to the perception service process as a client through a jni interface;
acquiring channel state information of the WIFI to be detected through a perception service process;
and debugging and calling a setting command, and periodically acquiring the channel state information of the WIFI to be detected.
"the service is established between the perception service process and a local interface in the android system", including:
the local interface establishes a server for realizing the acquisition of a connection interface, a disconnection interface, a notification interface and a setting interface;
the preset APP is accessed to the service established by the local interface through a jni interface and serves as a client;
and performing function configuration through the interface corresponding to the preset APP call.
A system based on the method described above, comprising:
the user state module is used for carrying out data interaction with external WIFI to be detected and acquiring channel state information of the WIFI to be detected;
one end of the data acquisition service process module is connected with the user mode module and is used for acquiring the channel state information of the WIFI to be detected;
one end of the channel state service module is connected with the other end of the data acquisition service process module and is used for acquiring the channel state information of the WIFI to be detected;
one end of the perception service process module is connected with the other end of the channel state service module and is used for acquiring the channel state information of the WIFI to be detected;
and the preset APP module is used for carrying out data interaction with the perception service process module and is used for acquiring the channel state information of the WIFI to be detected.
The system further comprises: a local interface module;
the local interface module is arranged between the perception service process module and the preset APP module and is used for transmitting the channel state information of the WIFI to be detected to the local so as to facilitate the calling of the preset APP module.
An electronic device, comprising:
the storage medium is used for storing the android program;
and the processing unit is used for carrying out data exchange with the storage medium and executing the android program by the processing unit when carrying out the configuration of the WiFisensing, so as to carry out the steps of the method for configuring the WiFisensing by utilizing the android system.
A readable storage medium, wherein:
the readable storage medium stores an android program;
the android program, when running, performs the steps of the method of configuring wifi sensing using the android system as described above.
The invention has at least the following beneficial effects:
according to the method, at least 1 perception service process is newly built in the android system, and services are built by utilizing the perception service process and a local interface in the android system; then, loading a so library corresponding to the WIFI to be detected through the local interface by using a preset APP in the android system, and accessing the preset APP as a client into the android system; finally, calling, setting and acquiring channel state information through the preset APP; the method provided by the invention has the advantages that the flow is simple, the efficiency is high, the call and the setting of the android platform to the channel state information can be realized, and the application range of the channel state information is widened;
the system of the invention performs data interaction with external WIFI to be detected through the user mode module and is used for collecting channel state information of the WIFI to be detected; acquiring channel state information of the WIFI to be detected through a data acquisition service process module; finally, the channel state information of the WIFI to be detected is sent to a preset APP module, and the preset APP module is used for carrying out adjustment, adjustment and the like on the channel state information data of the WIFI to be detected; the system transmits the channel state information data of the WIFI to be detected to the local interface through the perception service process module, and has the advantage of simple structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the method of the present invention;
FIG. 2 is a schematic diagram of a system according to the present invention;
FIG. 3 is a flow chart of the method of the present invention;
FIG. 4 is a system block diagram of a system according to the present invention;
FIG. 5 is a call interface screenshot of a method embodying the present invention;
FIG. 6 is a screenshot of open channel state information acquisition for a particular use of the method of the present invention;
FIG. 7 is a screenshot of CSI service acquisition data for a specific use of the method of the present invention;
fig. 8 is a screenshot of obtaining channel state information reported by a WIFI driver when the method of the present invention is specifically used;
FIG. 9 is a waveform diagram of the actual situation of the ground obtained by the method of the present invention;
FIG. 10 is another waveform diagram of the ground truth obtained by the method of the present invention;
FIG. 11 is a schematic representation of a time stamp obtained by the method of the present invention;
fig. 12 is a waveform diagram of channel state information obtained by the method of the present invention.
Wherein, in fig. 2-3:
wifi Sensing Agent: wifi perception agent
Algerithm: algorithm
Config/control: configuration/control
Manufacture firmware/SDK: vendor firmware/SDK
CSI SDK: CSI data packet transmission function
Sensing App: preset perception APP
Sensing JNI: perceptual JNI local interface
Jar package: android native frame work jar package
Client: client terminal
Sensing Server: awareness of service progress
CSINFO: CSI information
Process: progress of a process
CSI DATA CSI DATA packet
CSI RAW: original CSI body
Wifi driver: is WIFI driving; configuring CSI functionality, capturing CSI data via a scan channel
In fig. 4:
100. a user mode module; 200. a data acquisition service process module; 300. a channel state service module; 400. a perception service process module; 500. a local interface module; 600. and presetting an APP module.
Detailed Description
Those skilled in the art will appreciate that modules in an apparatus in an implementation scenario may be distributed in an apparatus in an implementation scenario according to an implementation scenario description, or that corresponding changes may be located in one or more apparatuses different from the implementation scenario. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
Noun interpretation:
binder mechanism: is an interprocess communication mechanism and is based on open source OpenBinder realization.
Socket mode: a socket is an abstraction layer through which an application program can send or receive data, and can perform operations such as opening, reading, writing, and closing like a file. Sockets allow applications to insert I/O into the network and communicate with other applications in the network. A web socket is a combination of an IP address and a port.
CSI data: channel state information of WIFI
According to the WiFiSensing function requirement, as shown in fig. 1, the method comprises the following steps:
1. WIFI driving needs to support a CSI function;
2. the WIFI driver transmits the CSI data to the application layer in a socket building mode.
3. An adaptation layer interface is needed, so that the APK can be used as a proxy of the WiFinsing to realize the opening and closing of the CSI data, set parameters and acquire the parameters.
In order to solve the problems in the prior art, the core idea of the invention is as follows: as follows in fig. 2, two services are added, one for each: sensing service process, namely Sensing Server, and data acquisition service process, namely CSI Server; the Sensing Server is used as a service established with a local interface JNI, and can call interfaces such as setting, obtaining and the like after being successfully accessed as a client after loading a LibWifisensing. So library (a shared library compiled and generated by a local interface service) through a binder mechanism and a preset APP; the other CSI Server is mainly responsible for obtaining the channel state information of the user state, and the user state and the WIFI drive perform data transmission in a socket mode.
Specific example I:
the present invention provides an embodiment:
as shown in fig. 3, a method for configuring WiFiSensing using an android system, includes: newly establishing 1 perception service process in the android system; the perception service process establishes service with a local interface in the android system; after a preset APP in the android system loads a so library corresponding to WIFI to be detected through the local interface, the preset APP is used as a client to be accessed into the android system; and calling, setting and acquiring channel state information of the WIFI to be detected through the preset APP.
The "service is established between the perceived service process and a local interface in the android system", when: and communicating the perception service process with a local interface in the android system through a binder mechanism.
The "calling, setting and obtaining channel state information through the preset APP" includes: newly establishing 1 data acquisition service process in the android system; the data acquisition service process acquires channel state information of the WIFI to be detected; the preset APP obtains, calls or sets the data corresponding to the channel state information through the perception service process.
The "channel state information of the WIFI to be detected" includes:
1) netlink header (7 bytes total): physical network device id, sequence number, segment index.
2) CSI frame header (56 bytes total): reserved bytes, received frame source MAC address, CSI capture state, received frame TSF timestamp, csi_nc state, csi_nr state, received frame bandwidth, received frame rate, received signal strength indication, CSI condition subtraction number, CSI state quality bits, length of CSI dump
3) Original CSI body (208 bytes total);
the "the preset APP obtains, calls, or sets data corresponding to the channel state information through the service aware process" includes:
the preset APP is accessed to the perception service process as a client through a jni interface;
acquiring a bottom-layer csi data packet (namely acquiring the channel state information of the WIFI to be detected) through a perception service process
The set command "echo 100 00 30>/proc/net/csi_info" may be invoked "
The corresponding parameters are as follows:
CSI switch: 0:disable CSI,1:enable CSI.
Group number 0:num 1,1:num 2,2:num 4,3:num 16
Accuracy: 0:1 bytes, 1:2bytes
Mode: 0:ACK,1:MACID,2:NDP
Reserved set 0
Transmission cycle: a transmission period of NULL data; in msec.
"the service is established between the perception service process and a local interface in the android system", including:
the local interface establishes a server for realizing the acquisition of a connection interface, a disconnection interface, a notification interface and a setting interface;
the preset APP is accessed to the service established by the local interface through a jni interface and serves as a client;
and performing function configuration through the interface corresponding to the preset APP call.
The method described in this embodiment may refer to the specific application screen shots described in fig. 5-8 when applied specifically.
Specific example II:
the invention also provides an embodiment:
as shown in fig. 4, a system based on the method described above, comprising: the system comprises a user mode module 100, a data acquisition service process module 200, a channel state service module 300, a perception service process module 400, a local interface module 500 and a preset APP module 600; the user state module 100 performs data interaction with external WIFI to be detected, and is configured to collect channel state information of the WIFI to be detected; one end of the data acquisition service process module 200 is connected with the user mode module 100, and is used for acquiring the channel state information of the WIFI to be detected; one end of the channel state service module 300 is connected with the other end of the data acquisition service process module 200, and is used for acquiring the channel state information of the WIFI to be detected; one end of the perception service process module 400 is connected with the other end of the channel state service module 300, and is used for collecting the channel state information of the WIFI to be detected; the preset APP module 600 performs data interaction with the sensing service process module 400, and is configured to collect channel state information of the WIFI to be detected; the local interface module 500 is disposed between the sensing service process module 400 and the preset APP module 600, and is configured to transmit the channel state information of the WIFI to be detected to a local area, so that the preset APP module 600 is convenient to call.
By the method for configuring WiFiSensing by using the android system according to embodiment I, the waveform diagrams as shown in fig. 9-10 are obtained on the android platform through the preset APP, and the amplitude of the CSI data is observed according to the time stamp by the collected CSI data, as shown in fig. 11-12.
The invention also provides an embodiment:
an electronic device, comprising: a storage medium and a processing unit; the storage medium is used for storing android programs; the processing unit is used for exchanging data with the storage medium, and executing the android program through the processing unit when the WiFinsing is configured, so as to perform the steps of the method for configuring the WiFinsing by utilizing the android system.
A readable storage medium, wherein: the readable storage medium stores an android program; the android program, when running, performs the steps of the method of configuring wifi sensing using the android system as described above.
In the present invention, the readable storage medium may be any tangible medium containing or storing a program, as long as it can be recognized by the android platform or recognized by a computer; the program may be used by or in conjunction with an instruction execution system, apparatus, or device. In the present invention, however, a readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The present invention provides an embodiment comprising a program product comprising a program carried on an android platform readable medium, the program comprising program code for performing the method shown in any of the flowcharts of fig. 3. The program may be downloaded and installed from a network. When the program is executed by the CPU, the functions defined in the system of the present invention are performed; the CPU described herein may be any controller chip that supports an android platform.
The above-mentioned inventive sequence numbers are merely for description and do not represent advantages or disadvantages of the implementation scenario.
The foregoing disclosure is merely illustrative of some embodiments of the invention, and the invention is not limited thereto, as modifications may be made by those skilled in the art without departing from the scope of the invention. The above-mentioned inventive sequence numbers are merely for description and do not represent advantages or disadvantages of the implementation scenario.

Claims (10)

1. A method of configuring wifi sensing with an android system, comprising:
creating at least 1 perception service process in the android system;
the perception service process establishes service with a local interface in the android system;
after a preset APP in the android system loads a so library corresponding to WIFI to be detected through the local interface, the preset APP is used as a client to be accessed into the android system;
and calling, setting and acquiring channel state information of the WIFI to be detected through the preset APP.
2. The method for configuring wifi sensing using an android system according to claim 1, wherein: the "service is established between the perceived service process and a local interface in the android system", when:
and communicating the perception service process with a local interface in the android system through a binder mechanism.
3. The method for configuring wifi sensing with android system according to claim 1, wherein the steps of calling, setting, and obtaining channel state information through the preset APP include:
creating at least 1 data acquisition service process in the android system;
the data acquisition service process acquires channel state information of the WIFI to be detected;
the preset APP obtains, calls or sets the data corresponding to the channel state information through the perception service process.
4. The method for configuring WIFI sensing using an android system according to claim 3, wherein the channel state information "of WIFI to be detected includes:
one or more of netlink header, CSI frame header, original CSI body.
5. The method for configuring wifi sensing by using an android system according to claim 3, wherein "the preset APP obtains, calls, or sets data corresponding to the channel state information through the sensing service process" includes:
the preset APP is accessed to the perception service process as a client through a jni interface;
acquiring channel state information of the WIFI to be detected through a perception service process;
and debugging and calling a setting command, and periodically acquiring the channel state information of the WIFI to be detected.
6. The method for configuring wifi sensing with an android system according to claim 1, wherein "the perceived service process establishes a service with a local interface in the android system", comprises:
the local interface establishes a server for realizing the acquisition of a connection interface, a disconnection interface, a notification interface and a setting interface;
the preset APP is accessed to the service established by the local interface through a jni interface and serves as a client;
and performing function configuration through the interface corresponding to the preset APP call.
7. A system based on the method of any one of claims 1-6, comprising:
the user state module WIFI performs data interaction with external WIFI to be detected and is used for acquiring channel state information of the WIFI to be detected;
one end of the data acquisition service process module WIFI is connected with the user mode module WIFI and used for acquiring channel state information of the WIFI to be detected;
one end of the channel state service module WIFI is connected with the other end of the data acquisition service process module WIFI and used for acquiring channel state information of the WIFI to be detected;
one end of the perception service process module WIFI is connected with the other end of the channel state service module WIFI, and is used for acquiring channel state information of the WIFI to be detected;
and the APP module WIFI is preset, performs data interaction with the perception service process module WIFI and is used for acquiring channel state information of the WIFI to be detected.
8. The system of claim 7, further comprising: a local interface module WIFI;
the local interface module WIFI is arranged between the perception service process module WIFI and the preset APP module WIFI and is used for transmitting channel state information of the WIFI to be detected to the local so as to facilitate the calling of the preset APP module WIFI.
9. An electronic device, comprising:
the storage medium is used for storing the android program;
a processing unit, in data exchange with the storage medium, for executing the android program by the processing unit when performing the configuration of wifi sensing, and performing the steps of the method for configuring wifi sensing using an android system according to any one of claims 1-6.
10. A readable storage medium, characterized by:
the readable storage medium stores an android program;
the android program, when running, performs the steps of the method of configuring WiFiSensing with an android system as claimed in any one of claims 1-6.
CN202310187627.1A 2023-02-20 2023-02-20 Method, system and device for configuring WiFisensing by utilizing android system Pending CN116233301A (en)

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Application Number Priority Date Filing Date Title
CN202310187627.1A CN116233301A (en) 2023-02-20 2023-02-20 Method, system and device for configuring WiFisensing by utilizing android system

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Publication Number Publication Date
CN116233301A true CN116233301A (en) 2023-06-06

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