CN113965982B - WAPI wireless access point, wireless system and control method thereof - Google Patents

WAPI wireless access point, wireless system and control method thereof Download PDF

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Publication number
CN113965982B
CN113965982B CN202111057641.7A CN202111057641A CN113965982B CN 113965982 B CN113965982 B CN 113965982B CN 202111057641 A CN202111057641 A CN 202111057641A CN 113965982 B CN113965982 B CN 113965982B
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China
Prior art keywords
wapi
power
power supply
control unit
management control
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CN113965982A (en
Inventor
童玲
陈欢
沈通桥
赖丽燕
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China Southern Power Grid Digital Platform Technology Guangdong Co ltd
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China Southern Power Grid Digital Platform Technology Guangdong Co ltd
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0296—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level switching to a backup power supply
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H04W12/088—Access security using filters or firewalls
    • 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

Abstract

The invention discloses a WAPI wireless access point, a wireless system and a control method thereof, wherein the WAPI wireless access point comprises a communication unit, a power management control unit, a WAPI system, a main power supply, a WAPI system power tree and a controlled power switch; the communication unit is used for acquiring external dormancy strategy scheduling information and transmitting the external dormancy strategy scheduling information to the power management control unit; the power management control unit is used for analyzing the sleep strategy scheduling information, sending a notification to the WAPI system when the analysis result contains a shutdown instruction, and controlling the controlled power switch to cut off the power supply of the main power supply to the WAPI system power tree after receiving the feedback instruction; and the WAPI system is powered on from a WAPI system power tree, is triggered to execute power-off data storage logic by a notification instruction sent by the power management control unit, and returns a feedback instruction. The invention realizes the working time extension of the WAPI wireless Access Point (AP) single battery of the outdoor battery power supply by improving the system architecture to introduce the dormancy mechanism.

Description

WAPI wireless access point, wireless system and control method thereof
Technical Field
The present invention relates to communication technologies, and in particular, to a WAPI wireless access point, a wireless system, and a control method thereof.
Background
The standard technology of the IEEE 802.11 series commonly seen nowadays adopts a binary security architecture, a wireless Access Point (AP) has no independent identity, and adopts an American cryptographic algorithm AES, so that various security holes such as KRACK, dragonblood for WPA2 and WPA3 exist in various existing devices.
The equipment based on WAPI technology adopts a ternary peer-to-peer security structure, so far, no security hole is found, the security problem existing in IEEE 802.11 series standard technology is solved, and the following functions are achieved:
1) Bandwidth: a plurality of bandwidth devices meeting the bandwidth requirements of different scenes;
2) Covering: most of the wireless data transmission devices aim at indoor wireless data transmission, and the coverage area is smaller;
3) Reception sensitivity: meets the WAPI technical standard requirements;
4) Transmitting power: meets the WAPI technical standard requirements;
5) Access requirements: certificate authentication and legal access;
6) The application scene is as follows: and the power is supplied frequently, so that the power is conveniently taken.
Besides, the existing WAPI technology also extends the use scene characteristics of IEEE 802.11 series standard technical equipment, does not have energy-saving technologies such as a sleep mechanism, and is difficult to meet the requirements of battery power supply and long-time unmanned inspection, such as transmission tower data transmission in the power industry, and needs to reduce the energy consumption of a WAPI wireless Access Point (AP) in order to achieve longer service time of the battery in an idle scene without data transmission. The reason for this is that the baseband chip of the WAPI wireless Access Point (AP) has no sleep mechanism to cause the baseband chip defect, and has no energy saving technology in the technical framework, and does not meet the application scenario requirement of power consumption control.
Disclosure of Invention
The invention provides a WAPI wireless access point, a wireless system and a control method thereof, which realize the working time extension of a WAPI wireless Access Point (AP) single cell powered by an outdoor battery by improving the system architecture to introduce a dormancy mechanism.
The first aspect of the invention discloses a WAPI wireless access point, which comprises a communication unit, a power management control unit, a WAPI system, a main power supply, a WAPI system power tree and a controlled power switch;
the communication unit is connected with the power management control unit, and is used for acquiring external dormancy strategy scheduling information and transmitting the external dormancy strategy scheduling information to the power management control unit;
the power management control unit is connected with the WAPI system and used for analyzing the sleep strategy scheduling information, sending a notification to the WAPI system when the analysis result contains a shutdown instruction, and controlling the controlled power switch to cut off the power supply of the main power supply to the WAPI system power tree after receiving a feedback instruction;
the WAPI system is used for performing power-on operation from a WAPI system power tree, is used for performing local area network data transmission, is triggered by a notification instruction sent by the power management control unit to perform power-off data storage logic, and returns a feedback instruction.
As an optional implementation manner, in the first aspect of the present invention, the communication unit includes a first radio frequency front end and a wide area network baseband chip;
the wide area network baseband chip is connected with the first radio frequency front end and is used for receiving and transmitting wide area network radio frequency signals through the first radio frequency front end and modulating/demodulating the wide area network radio frequency signals.
As an optional implementation manner, in the first aspect of the present invention, the wide area network baseband chip is a Lora baseband chip; and after the power supply of the main power supply to the WAPI system power tree is cut off, the power management control unit controls the power management control unit and/or the communication unit to enter a low-power consumption mode based on a chip self-contained dormancy mechanism.
In an optional implementation manner, in the first aspect of the present invention, when the analysis result obtained by the power management control unit includes a power-on instruction, the power management control unit wakes up itself and the communication unit, and controls the controlled power switch to switch on the power supply of the main power supply to the WAPI system power tree so as to turn on the WAPI system.
As an optional implementation manner, in the first aspect of the present invention, the power supply manner of the main power supply includes one or more of POE power supply and battery power supply;
and/or the communication unit and the power management control unit are provided with a power management module for taking power from the main power supply and supplying power for the unit where the communication unit and the power management control unit are located.
In a first aspect of the present invention, as an alternative implementation manner, the WAPI system includes a WAPI baseband chip, a MAC controller, a wireless transceiver, a second radio frequency front end and an ethernet physical layer,
the WAPI baseband chip is used for executing control logic of an operating system;
the MAC controller is connected with the Ethernet physical layer and is used for receiving and transmitting data with the Ethernet physical layer through an RGMII/GMII bus;
the second radio frequency front end is provided with a PA module and at least two separated frequency bands, and is connected with the wireless transceiver through the PA module;
the wireless transceiver is connected with the WAPI baseband chip and is used for sending the coded original data to the second radio frequency front end or sending the decoded antenna receiving signal to the WAPI baseband chip;
the Ethernet physical layer has a LAN port for extended routing and a WAN port supporting POE.
The second aspect of the present invention discloses a control method for a WAPI wireless access point, which is applicable to the above WAPI wireless access point, and the control method includes:
the communication unit acquires external dormancy strategy scheduling information to the power management control unit;
the power management control unit analyzes the sleep strategy scheduling information, and when the analysis result contains a shutdown instruction, the power management control unit sends a notification to the WAPI system and controls the controlled power switch to cut off the power supply of the main power supply to the WAPI system power tree after receiving the feedback instruction;
and the WAPI system is triggered by the notification instruction to execute the power-off data storage logic and returns a feedback instruction.
The third aspect of the present invention discloses a WAPI wireless system, comprising:
an AC/AS server;
at least two WAPI wireless access points as described above;
the switch is connected with part or all of the WAPI wireless access points and is connected with the AC/AS server;
and the base station is connected with the switch and is used for transmitting dormancy strategy scheduling information to part or all WAPI wireless access points in the coverage area based on the wide area network when the wireless data link is monitored to be in an idle state.
As an optional implementation manner, in the third aspect of the present invention, the switch includes a POE switch and a core switch;
the POE switch is connected with part or all of the WAPI wireless access points and supplies power to the WAPI wireless access points;
and the core switch is respectively connected with the POE switch and the AC/AS server.
The fourth aspect of the present invention discloses a control method for a WAPI wireless system, which is applicable to the above WAPI wireless system, and the control method includes:
monitoring the data transmission state of a wireless data link;
when the wireless data link is idle, a shutdown instruction is issued through the base station;
when the wireless data link generates data transmission service demands, a starting command is issued through the base station, the AC/AS server is controlled to perform validity identification on the started WAPI wireless access points, and the configuration of all WAPI wireless access points is completed through demand scheduling so AS to form the wireless data link to perform data transmission.
Compared with the common WAPI system, the invention has the advantages that:
under the application scene of adopting battery power supply, the wireless internet of things technology is completely integrated into the WAPI system architecture and combined with the dormancy strategy, so that the WAPI access point has a richer extended use scene, has better energy-saving performance, and can obtain stable and durable working time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a WAPI wireless access point provided in the present invention;
fig. 2 is a flow chart of a control method of a WAPI wireless access point provided by the invention;
fig. 3 is a schematic structural diagram of a WAPI wireless system provided by the present invention;
fig. 4 is a flow chart of a control method of a WAPI wireless system provided by the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terms first, second and the like in the description and in the claims of the invention and in the above-described figures, are used for distinguishing between different objects and not for describing a sequential order of interest. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or device that comprises a list of steps or elements is not limited to the list of steps or elements but may, in the alternative, include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The invention combines microcomputer technology, computer technology, communication technology, wireless radio frequency technology and Internet technology, takes international standard ISO/IEC 9798-3/Amd.1 developed by national standard GB 15629.11-2003, is compatible with IEEE 802.11 series standard (including 802.11a/b/g/n/ac and the like) wireless communication technology as a core, and designs and develops a solution of WAPI wireless Access Point (AP) with dormancy mechanism on the premise of meeting the safety requirement of common WAPI equipment, thereby filling the technical defect of the prior art.
The technology of the invention can be applied to various application scenes of power generation, power transmission, power transformation and power utilization in the power grid industry, such as a camera supporting WAPI, a sensor terminal supporting WAPI, a WAPI wireless relay access point and the like. The related products under the WAPI technical architecture comprise a WAPI certificate discriminator AS, a WAPI wireless controller AC, a WAPI wireless AP and a WAPI terminal CPE. The WAPI technology has the access characteristic of a ternary peer-to-peer security structure, so that the security of the wireless communication technology is greatly improved, and the urgent demands of various civilian industries with high standard requirements on security on wireless technology products are met.
Referring to fig. 1, a schematic structural diagram of a WAPI wireless access point provided by the present invention includes: the power management system comprises a communication unit 1, a power management control unit 2, a WAPI system 3, a main power supply 4, a WAPI system power tree 5 and a controlled power switch 6;
the communication unit 1 is connected with the power management control unit 2, and is used for acquiring external dormancy strategy scheduling information and transmitting the external dormancy strategy scheduling information to the power management control unit 2;
the power management control unit 2 is connected with the WAPI system 3 and is used for analyzing the sleep strategy scheduling information, sending a notification to the WAPI system 3 when the analysis result contains a shutdown instruction, and controlling the controlled power switch 6 to cut off the power supply of the main power supply 4 to the WAPI system power tree 5 after receiving a feedback instruction;
the WAPI system 3 is used for performing power-on operation from the WAPI system power tree 5, is used for performing local area network data transmission, is triggered by a notification instruction sent by the power management control unit 2 to perform power-off data storage logic, and returns a feedback instruction.
In this embodiment, the power management control unit 2 may be an MCU based on an ARM Cortex-M architecture, and integrates an independent watchdog and an ultra-low power consumption platform, so that ultra-low operation power consumption can be realized on the premise of ensuring stable operation of the system. For the power management control unit 2, the main functions that it implements are the configuration of the communication unit 1, the processing of the received data and the execution of the power management control logic.
When the wireless Access Point (AP) works, after finishing data transmission, the data link constructed by the WAPI can be interrupted, at the moment, the control center starts the energy-saving strategy and sends instructions to the communication units 1 of all the WAPI wireless Access Points (AP). When the communication unit 1 receives the instruction, the instruction is transferred to the power management control unit 2 through a data bus (SPI). The power management control unit 2 receives and executes the instruction, and notifies the WAPI system 3 of the impending power cut-off through the corresponding data bus, and the WAPI system 3 stores the power-off data and feeds back to the power management control unit 2. After receiving the feedback from the WAPI system 3, the power management control unit 2 controls the controlled power switch 6 to stop supplying power to the WAPI system power tree 5.
The average energy consumption of the common WAPI system architecture under the common coverage test condition is 5-6W. In the WAPI system architecture introduced into the communication unit 1, the power management control unit 2 and the controlled power switch 6 provided in this embodiment, under the assistance of the sleep scheduling policy, the average power consumption of the WAPI wireless Access Point (AP) can be greatly reduced according to the frequency of data link establishment. Taking ten minutes of data link establishment and data link operation per hour as an example, the average power consumption can be reduced to 1W, and the working time of a WAPI wireless Access Point (AP) single cell powered by an outdoor battery is greatly prolonged.
As an optional modified embodiment, the communication unit 1 may include a first radio frequency front end 11 and a wide area network baseband chip 12;
the wide area network baseband chip 12 is connected to the first rf front end 11, and is configured to receive and transmit a wide area network rf signal through the first rf front end 11, and modulate/demodulate the wide area network rf signal.
In the improved embodiment, the base station is adopted to conveniently carry out remote wide area communication on each baseband node in the coverage area in a wide area network communication mode, so that the complicated and cost of wiring in the area is saved, the synchronous receiving of the dormancy strategy scheduling information by each baseband node can be ensured, and the regular regulation and control of the link are realized.
As a more preferable solution, the baseband chip of the wide area network is configured as a Lora baseband chip, which is provided with a sleep mechanism on the premise of ensuring wide area network communication, and after the main power supply 4 is cut off to supply power to the WAPI system power tree 5, the power management control unit 2 can control itself and the communication unit 1 to enter a low power consumption mode, so as to achieve a further reduction of average power consumption of the WAPI wireless Access Point (AP).
After the power management control unit 2 and the communication unit 1 enter the low power consumption mode, waiting for new dormancy strategy scheduling information of the control center, and under the condition that the power management control unit 2 analyzes the information to obtain a starting instruction, the power management control unit 2 is triggered to wake up the power management control unit and the communication unit 1, and controls the controlled power switch 6 to switch on the power supply of the main power supply 4 to the WAPI system power tree 5 so as to start the WAPI system 3 to execute data transmission service requirements.
In the more preferred scheme, the Lora baseband chip and the first radio frequency front end 11 can adopt a high integration arrangement to form a Lora system-on-chip, high-power PA (+20 dBm) is integrated on the Lora system-on-chip, a Lora long-distance modem is built in the Lora system-on-chip, FSK/GFSK/MSK/GMSK/Lora/OOK signal modulation is supported, receiving sensitivity above-148 dBm can be achieved at the lowest, receiving current is 9.9mA, and current can be as low as 200nA when a register is kept.
Further, the power supply mode of the main power supply 4 comprises one or more of POE power supply and battery power supply, and preferably, the power supply mode can be POE power supply and battery power supply, wherein the battery supplies power as a common power supply port through a main power supply port, the POE power supply is based on the existing ethernet wiring infrastructure, and when data are transmitted for the AP, direct current is directly provided for equipment without changing a line, so that the battery energy can be conveniently and locally supplemented and replaced during faults, and the battery working time can be further prolonged.
In this further scheme, the communication unit 1 and the power management control unit 2 are both provided with a power management module for taking power from the main power supply 4 and supplying power to the unit where the communication unit and the power management control unit are located.
As another alternative embodiment, the WAPI system 3 includes a WAPI baseband chip 31, a MAC controller 32, a wireless transceiver 33, a second radio frequency front end 34 and an ethernet physical layer 35,
the WAPI baseband chip 31 may be a CPU based on an ARM Cortex-a architecture, and mounts 256mb ddr3l as a memory unit, for storing a Linux operating system and an application program that are running, and executing an operating system control logic;
the MAC controller 32 is connected to the ethernet physical layer 35, and performs data transmission and reception with the ethernet physical layer 35 through an RGMII/GMII bus;
the second rf front end 34, an external high-power PA module (+27 dBm) is connected to the wireless transceiver 33, and the frequency band is set to be separated from 2.4GHz and 5GHz, and the dual-frequency and four-antenna ports are adopted to enhance the transceiving performance;
the wireless transceiver 33 is connected with the WAPI baseband chip 31, and is used for completing the encoding of the original data and sending the encoded data to the external PA for amplification and then sending the encoded data to the antenna, or sending the signal received by the antenna to the wireless transceiver 33 for decoding and recovering the original data after filtering and amplifying the signal;
the ethernet physical layer 35 has LAN ports for extended routing and WAN ports for POE support.
The embodiment is different from a common WAPI wireless Access Point (AP) in system architecture, and the low-power WAPI wireless Access Point (AP) integrated with the Lora technology introduces a dormancy mechanism, so that better energy-saving performance can be achieved through the Lora technology and the dormancy strategy, and stable and durable working time can be obtained.
Referring to fig. 2, a flow chart of a control method of a WAPI wireless access point provided by the present invention, where the method is applicable to the WAPI wireless access point in the foregoing embodiment, and includes the steps of:
s101, a communication unit 1 acquires external dormancy strategy scheduling information to a power management control unit 2;
s102, the power management control unit 2 analyzes the sleep strategy scheduling information, when the analysis result contains a shutdown instruction, the power management control unit sends a notification to the WAPI system 3, and after receiving a feedback instruction, the power management control unit controls the controlled power switch 6 to cut off the power supply of the main power supply 4 to the WAPI system power tree 5;
s103, the WAPI system 3 is triggered by the notification instruction to execute the power-off data storage logic, and a feedback instruction is returned.
The embodiment provides a control method of a WAPI wireless access point, under the architecture of a WAPI system with a communication unit 1, a power management control unit 2 and a controlled power switch 6, sleep policy scheduling is implemented, and the average power consumption of the WAPI wireless Access Point (AP) can be greatly reduced according to the frequency of establishing a data link. Taking ten minutes of data link establishment and data link operation per hour as an example, the average power consumption can be reduced to 1W, and the working time of a WAPI wireless Access Point (AP) single cell powered by an outdoor battery is greatly prolonged.
Referring to fig. 3, a schematic structural diagram of a WAPI wireless system provided by the present invention includes:
an AC/AS server 30;
at least two WAPI wireless access points 10 as described above, each WAPI wireless access point 10 constituting a wireless data link;
a switch 20 connected to some or all of the WAPI wireless access points 10 and connected to an AC/AS server 30;
the base station 40 is connected to the switch 20, and is configured to issue dormancy policy scheduling information to some or all of the WAPI wireless access points 10 in the coverage area based on the wide area network when it is detected that the wireless data link is in an idle state.
In this embodiment, the base station 40 may be a Lora base station, which is configured to implement wide area network data transmission on the Lora node of the WAPI wireless access point 10 within the coverage area.
As an alternative embodiment, the switch 20 includes a POE switch 21 and a core switch 22;
the POE switch 21 is connected to some or all of the WAPI wireless access points 10 and performs POE power supply to the WAPI wireless access points 10;
the core switch 22 is connected to the POE switch 21 and the AC/AS server 30, respectively.
In the WAPI wireless system provided by the embodiment, under the application scene of adopting battery power supply, the WAPI access point AP introducing the Lora technology can achieve better energy-saving performance, obtain stable and durable working time, and completely integrate the wireless Internet of things technology of Lora into the WAPI system architecture, so that the WAPI wireless system has richer expansion use scene
Referring to fig. 4, a flow chart of a control method of a WAPI wireless system provided by the present invention, where the method is applicable to the WAPI wireless system of the foregoing embodiment, and includes the steps of:
s201, monitoring a data transmission state of a wireless data link;
s202, when a wireless data link is idle, a shutdown instruction is issued through a base station;
s203, when the wireless data link generates data transmission service demands, a starting command is issued through the base station, the AC/AS server is controlled to perform validity identification on the started WAPI wireless access points, and the configuration of all WAPI wireless access points is completed through demand scheduling so AS to form the wireless data link to perform data transmission.
Specifically, in the case that the system link is not established, the sleep policy scheduling system queries all the Lora nodes (built-in WAPI wireless access points) in the coverage area through the Lora base station.
When the WAPI wireless communication link has a data transmission service requirement and needs to establish a data link, the step S203 is executed, which specifically includes:
s2031, a dormancy strategy scheduling system issues an AP startup instruction of an access point through a Lora base station;
s2032, after receiving a startup instruction, a Lora node in an Access Point (AP) opens the AP through an internal specific logic mechanism (see the description of the working process of a WAPI wireless Access Point (AP)) and a logic mechanism (see the description of the working process of the WAPI wireless access point);
s2033, authenticating and identifying whether the AP is legal or not by the AC/AS server;
s2034, completing configuration of all Access Points (APs) on the WAPI wireless communication link through demand scheduling, and establishing a complete data link;
s2035, executing data transmission service requirements;
when the WAPI wireless communication link completes the data transmission service requirement and the data link is idle, the step S202 is executed, which specifically includes:
s2021, a dormancy strategy scheduling system issues an AP shutdown instruction of an access point through a Lora base station;
s2022, after the Lora node in the access point AP receives a shutdown instruction, closing the access point AP through an internal specific logic mechanism;
s2023, waiting for the next service demand to be initiated.
The embodiment provides a control method of a WAPI wireless system, introduces a WAPI system architecture of the Lora technology, and can greatly reduce the average power consumption of a wireless access point according to the establishment frequency of a data link under the assistance of a dormancy scheduling strategy.
Compared with the common WAPI system, the invention has the advantages that:
the common WAPI system is not integrated with the Lora technology, the technical architecture lacks a Lora on-chip system, a power management control unit and a WAPI controlled power switch, the main power supply directly supplies power to a WAPI system power tree, and the WAPI system is in an uninterrupted working state due to the defect of a WAPI baseband chip and the lack of a fusion dormancy mechanism, so that relatively large electric energy consumption still exists under the condition of no data transmission, and the average energy consumption is 5-6W under the test condition which is covered generally.
The WAPI wireless access point and the system of the invention have the advantages that the system architecture introduces the Lora technology, and the average power consumption of the wireless access point can be greatly reduced according to the establishment frequency of the data link under the assistance of the dormancy scheduling strategy. Taking ten minutes of data link establishment per hour as an example, the average power consumption can be reduced to 1W.
The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the disclosure of the embodiments of the present invention is only a preferred embodiment of the present invention, and is only for illustrating the technical scheme of the present invention, but not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (7)

1. The WAPI wireless access point is characterized by comprising a communication unit, a power management control unit, a WAPI system, a main power supply, a WAPI system power tree and a controlled power switch;
the communication unit is connected with the power management control unit, and is used for acquiring external dormancy strategy scheduling information and transmitting the external dormancy strategy scheduling information to the power management control unit;
the power management control unit is connected with the WAPI system and used for analyzing the sleep strategy scheduling information, sending a notification to the WAPI system when the analysis result contains a shutdown instruction, and controlling the controlled power switch to cut off the power supply of the main power supply to the WAPI system power tree after receiving a feedback instruction;
the WAPI system is used for performing power-on operation from a WAPI system power tree, is used for performing local area network data transmission, is triggered by a notification instruction sent by the power management control unit to perform power-off data storage logic, and returns a feedback instruction;
the communication unit comprises a wide area network baseband chip and a first radio frequency front end, wherein the wide area network baseband chip is a Lora baseband chip; after the power supply of the main power supply to the WAPI system power tree is cut off, the power management control unit controls the power management control unit and/or the communication unit to enter a low-power consumption mode based on a chip self-contained dormancy mechanism;
the power management control unit is further configured to wait for new sleep policy scheduling information of a control center after the power management control unit and the communication unit enter a low power consumption mode, and trigger to wake up the power management control unit and the communication unit and control the controlled power switch to switch on the power supply of the main power supply to the WAPI system power tree so as to start the WAPI system to execute data transmission service requirements under the condition that the power management control unit analyzes the information to obtain a startup instruction;
the Lora baseband chip and the first radio frequency front end are arranged in a high integration mode to form a Lora system on chip, the Lora system on chip integrates high-power PA, a Lora long-distance modem is arranged in the Lora system on chip, the Lora long-distance modem supports FSK/GFSK/MSK/GMSK/Lora/OOK signal modulation, receiving sensitivity of more than-148 dBm is achieved, receiving current is 9.9mA, and current is kept low to 200nA when a register is kept;
the power supply mode of the main power supply comprises one or more of POE power supply and battery power supply;
and/or the communication unit and the power management control unit are provided with a power management module for taking power from a main power supply and supplying power to the unit where the communication unit and the power management control unit are positioned;
the power supply device comprises a main power supply port, a POE power supply port, a power supply module and a power supply module, wherein the battery power supply is used for supplying power through the main power supply port as a common power supply port, and the POE power supply is used for supplying direct current for equipment based on an existing Ethernet wiring infrastructure.
2. The WAPI wireless access point of claim 1, wherein the wide area network baseband chip is connected to the first rf front end, and configured to receive and transmit a wide area network rf signal through the first rf front end, and to modulate/demodulate the wide area network rf signal.
3. The WAPI wireless access point of claim 1 wherein the WAPI system includes a WAPI baseband chip, a MAC controller, a wireless transceiver, a second RF front end, and an Ethernet physical layer,
the WAPI baseband chip is used for executing control logic of an operating system;
the MAC controller is connected with the Ethernet physical layer and is used for receiving and transmitting data with the Ethernet physical layer through an RGMII/GMII bus;
the second radio frequency front end is provided with a PA module and at least two separated frequency bands, and is connected with the wireless transceiver through the PA module;
the wireless transceiver is connected with the WAPI baseband chip and is used for sending the coded original data to the second radio frequency front end or sending the decoded antenna receiving signal to the WAPI baseband chip;
the Ethernet physical layer has a LAN port for extended routing and a WAN port supporting POE.
4. A control method of a WAPI wireless access point, applicable to a WAPI wireless access point as claimed in any one of claims 1 to 3, characterized in that the control method comprises:
the communication unit acquires external dormancy strategy scheduling information to the power management control unit;
the power management control unit analyzes the sleep strategy scheduling information, and when the analysis result contains a shutdown instruction, the power management control unit sends a notification to the WAPI system and controls the controlled power switch to cut off the power supply of the main power supply to the WAPI system power tree after receiving the feedback instruction;
and the WAPI system is triggered by the notification instruction to execute the power-off data storage logic and returns a feedback instruction.
5. A WAPI wireless system, comprising:
an AC/AS server;
at least two WAPI wireless access points as recited in any one of claims 1-3;
the switch is connected with part or all of the WAPI wireless access points and is connected with the AC/AS server;
and the base station is connected with the switch and is used for transmitting dormancy strategy scheduling information to part or all WAPI wireless access points in the coverage area based on the wide area network when the wireless data link is monitored to be in an idle state.
6. The WAPI wireless system of claim 5 wherein the switch comprises a POE switch, a core switch;
the POE switch is connected with part or all of the WAPI wireless access points and supplies power to the WAPI wireless access points;
and the core switch is respectively connected with the POE switch and the AC/AS server.
7. A control method of a WAPI wireless system, adapted to the WAPI wireless system of claim 5 or 6, wherein the control method comprises:
monitoring the data transmission state of a wireless data link;
when the wireless data link is idle, a shutdown instruction is issued through the base station;
when the wireless data link generates data transmission service demands, a starting command is issued through the base station, the AC/AS server is controlled to perform validity identification on the started WAPI wireless access points, and the configuration of all WAPI wireless access points is completed through demand scheduling so AS to form the wireless data link to perform data transmission.
CN202111057641.7A 2021-09-09 2021-09-09 WAPI wireless access point, wireless system and control method thereof Active CN113965982B (en)

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