CN114499592A - System and method for reducing NFC power consumption and improving reliability - Google Patents

System and method for reducing NFC power consumption and improving reliability Download PDF

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Publication number
CN114499592A
CN114499592A CN202111613763.XA CN202111613763A CN114499592A CN 114499592 A CN114499592 A CN 114499592A CN 202111613763 A CN202111613763 A CN 202111613763A CN 114499592 A CN114499592 A CN 114499592A
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nfcc
nfc
communication rate
setting instruction
application event
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CN114499592B (en
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朱述波
朱恒毅
潘朝阳
王涛
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Wuxi Rongka Technology Co ltd
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Wuxi Rongka Technology Co ltd
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    • H04B5/72—
    • 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
    • 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
    • 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)
  • Power Sources (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a system and a method for reducing NFC power consumption and improving reliability, wherein the system is applied to NFCC equipment and comprises an NFC service module, a protocol stack library, an NFC HAL layer and a kernel driving module, wherein the protocol stack library is provided with a speed engine module; the NFC service module is used for acquiring battery power change information and application event types of the NFCC equipment; the speed engine module is used for generating an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type; the NFC HAL layer is used for sending the NFCC communication rate setting instruction to the kernel driving module; the kernel driver module is configured to receive and execute the NFCC communication rate setting instruction. The invention reduces the dynamic power consumption of NFC, ensures the stable transmission of data and improves the running reliability of NFCC equipment by dynamically adjusting the NFCC communication rate.

Description

System and method for reducing NFC power consumption and improving reliability
Technical Field
The invention relates to the technical field of NFCC (field communication chip), in particular to a system and a method for reducing NFC (near field communication) power consumption and improving reliability.
Background
Nfc (near Field communication), a short-range wireless communication technology, is a wireless technology initiated by philips and developed by nokia, sony and other well-known manufacturers. The system is integrated and evolved by non-contact radio frequency identification and interconnection technology, combines the functions of an induction type card reader, an induction type card and point-to-point on a single chip, and can perform identification and data exchange with compatible equipment in short distance.
The number of smart phones using NFCC as a carrier is increasing, and the application of NFC technology is also becoming wider, but the power of a smart phone or a wearable device is often lost. In the existing NFCC technical scheme, because the kernel-driven communication rate is fixed, and NFCC management and service application cannot dynamically configure the device rate of the NFCC, the dynamic power consumption of the NFCC is fixed, and only when the NFCC device is not in operation, the NFCC device enters a sleep state to reduce the power consumption, so that the dynamic power consumption of the NFCC device cannot be reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a system and a method for reducing NFC power consumption and improving reliability.
In a first aspect, a system for reducing NFC power consumption and improving reliability is applied to NFCC devices, and includes an NFC service module, a protocol stack library, an NFC HAL layer, and a kernel driver module, where the protocol stack library is provided with a speed engine module;
the NFC service module is used for acquiring battery power change information and application event types of the NFCC equipment;
the speed engine module is used for generating an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type;
the NFC HAL layer is used for sending the NFCC communication rate setting instruction to the kernel driving module;
the kernel driver module is configured to receive and execute the NFCC communication rate setting instruction.
Further, the NFC service module is specifically configured to:
acquiring battery power change information of NFCC equipment by adopting a broadcasting mechanism;
and triggering an application event, and acquiring a corresponding application event type according to the application event.
Further, the application event types include, but are not limited to, an NFCC firmware download event, an NFCC configuration setting event, an NFCC mode setting event, and an NFCC data read-write event.
Further, the speed engine module includes a power detection unit and a speed setting unit, and the speed engine module is specifically configured to:
acquiring the battery state of the NFCC equipment according to the battery electric quantity change information through a power supply detection unit, and generating an NFCC communication rate setting instruction according to the battery state through a speed setting unit;
and generating an NFCC communication rate setting instruction according to the application event type through a speed setting unit.
Further, the speed engine module further includes a data size identification unit, and when an NFCC data read-write event is triggered, the speed engine module is specifically configured to:
the data reading and writing size is identified through the data size identification unit, and the NFCC communication rate setting instruction is generated through the speed setting unit according to the data reading and writing size.
In a second aspect, a method for reducing NFC power consumption and improving reliability includes:
the NFC service module acquires battery power change information and application event types of the NFCC equipment;
the speed engine module generates an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type;
the NFC HAL layer sends the NFCC communication rate setting instruction to the kernel driving module;
and the kernel driving module receives and executes the NFCC communication rate setting instruction.
Further, the NFC service module obtains the battery power change information and the application event type of the NFCC device, specifically:
the NFC service module acquires the battery power change information of the equipment by adopting a broadcasting mechanism;
the NFC service module triggers an application event and acquires a corresponding application event type according to the application event;
the application event types include, but are not limited to, an NFCC firmware download event, an NFCC configuration setting event, an NFCC mode setting event, and an NFCC data read-write event.
Further, the speed engine module generates an NFCC communication rate setting instruction according to the battery power change information and the application event type, specifically:
the speed engine module acquires a battery state according to the battery electric quantity change information of the NFCC equipment through a power supply detection unit, and generates an NFCC communication rate setting instruction according to the battery state through a speed setting unit;
and the speed engine module generates an NFCC communication speed setting instruction according to the application event type through a speed setting unit.
Further, the generating, by the speed engine module, an NFCC communication rate setting instruction according to the application event type by the speed setting unit includes:
when an NFCC data read-write event is triggered, the speed engine module identifies the data read-write size through the data size identification unit, and generates an NFCC communication rate setting instruction according to the data read-write size through the speed setting unit.
The invention has the following beneficial effects: and dynamically adjusting the NFCC communication rate according to the battery power change information and the application event type of the NFCC equipment, thereby reducing the dynamic power consumption of the NFC, ensuring stable data transmission and improving the running reliability of the NFCC equipment.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a block diagram of a system module for reducing NFC power consumption and improving reliability according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for reducing NFC power consumption and improving reliability according to a second embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example one
As shown in fig. 1, a system for reducing NFC power consumption and improving reliability is applied to NFCC devices, and includes an NFC service module, a protocol stack library, an NFC HAL layer, and a kernel driver module, where the protocol stack library is provided with a speed engine module. The NFC service module is used for acquiring the battery power change information and the application event type of the equipment; the speed engine module is used for generating an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type; the NFC HAL layer is used for sending the NFCC communication rate setting instruction to the kernel driving module; the kernel driving module is used for receiving and executing the NFCC communication rate setting instruction.
Specifically, when the battery power of the NFCC device changes, the NFC service module obtains information about the change of the battery power by using a broadcast mechanism. Meanwhile, the NFC service module may further trigger an application event, and obtain a corresponding application event type according to the triggered application event, where the application event type includes, but is not limited to, an NFCC firmware download event, an NFCC configuration setting event, an NFCC mode setting event, and an NFCC data read-write event.
Further, the speed engine module includes a power supply detection unit and a speed setting unit, after the NFC service module obtains the battery power variation information of the NFCC device, the speed engine module obtains the battery state of the NFCC device according to the battery power variation information through the power supply detection unit, generates an NFCC communication rate setting instruction according to the battery state through the speed setting unit, and configures different NFCC communication rate setting instructions for different battery states. For example, when the power supply detection unit acquires that the battery state of the NFCC device is a full power state, the speed setting unit generates a maximum rate transmission setting instruction according to the full power state; when the power supply detection unit obtains that the battery state of the NFCC device is a low power state, the speed setting unit generates a minimum rate transmission setting instruction according to the low power state. Preferably, in the practical application process, the specific configuration of the battery state and the communication rate can be set according to the practical situation.
When the NFC service module triggers an application event, the speed engine module can also generate an NFCC communication rate setting instruction according to the application event type through the speed setting unit, and correspondingly, different NFCC communication rate setting instructions are configured for different application event types. For example, when the NFC service module triggers an NFCC firmware download event, the speed setting unit generates a maximum rate transmission setting instruction, and when the NFCC firmware download event is not triggered, the speed setting unit generates a medium rate transmission setting instruction.
The speed engine module further comprises a data size identification unit, when the NFC service module triggers the NFCC data read-write event, the application parameters comprise the NFCC data read-write size, at the moment, the speed engine module identifies the NFCC data read-write size through the data size identification unit, and the speed setting unit generates the NFCC communication rate setting instruction according to the data read-write size. For example, when NFCC data is read and written, if the data size identification unit identifies that the transmission/reception data is greater than 256 bytes, the speed engine module generates a maximum rate transmission setting instruction by the speed setting unit, and if the data size identification unit identifies that the transmission/reception data is less than 24 bytes, the speed setting unit generates a minimum rate transmission setting instruction, otherwise, the speed setting unit generates a medium rate transmission setting instruction. The transmission rates corresponding to different data sizes can be set according to actual application conditions.
Preferably, when the battery power change and the application event trigger occur simultaneously, the speed engine module generates the NFCC communication rate setting instruction according to the priority, and the priority may be flexibly configured according to the scene needs. For example, the configuration is to generate an NFCC communication rate setting instruction as a first priority according to the battery power change information, generate an NFCC communication rate setting instruction as a second priority according to an application event type, and use an NFCC data read-write event as a last priority in the application event type.
After the NFCC communication rate setting instruction is generated, the NFC HAL layer sends the NFCC communication rate setting instruction to the kernel driver module, and the kernel driver module receives and executes the NFCC communication rate setting instruction to complete the setting of the communication rate of the NFCC device.
Under certain conditions, such as the conditions that the NFCC device is in a low power state, the NFCC firmware downloading event is triggered, and the data read-write volume is less than the set number of bytes, the NFC device is adjusted to operate at a lower communication rate according to the operation state of the NFCC device, so that the NFC power consumption can be effectively reduced. And when the NFCC equipment is in a low-power state, if the NFCC equipment operates in a high-speed mode, the current consumption is overlarge, at the moment, an error condition easily occurs in data transmission, and if the communication speed is correspondingly set, the NFCC equipment operates in a low-speed mode, so that the NFCC equipment operates in a low-speed mode under low power, data can be stably transmitted, and the reliability of the operation of the NFCC equipment is effectively improved.
Example two
As shown in fig. 2, a method for reducing NFC power consumption and improving reliability includes:
s1: the NFC service module acquires battery power change information and application event types of the NFCC equipment;
specifically, when the battery power of the NFCC device changes, the NFC service module obtains information about the change of the battery power by using a broadcast mechanism. Meanwhile, the NFC service module may further trigger an application event, and obtain a corresponding application event type according to the triggered application event, where the application event type includes, but is not limited to, an NFCC firmware download event, an NFCC configuration setting event, an NFCC mode setting event, and an NFCC data read-write event.
S2: the speed engine module generates an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type;
specifically, after the NFC service module obtains the battery power change information of the NFCC device, the speed engine module obtains the battery state of the NFCC device according to the battery power change information through the power detection unit, and generates an NFCC communication rate setting instruction according to the battery state through the speed setting unit, where different NFCC communication rate setting instructions are configured for different battery states. For example, when the power supply detection unit acquires that the battery state of the NFCC device is a full power state, the speed setting unit generates a maximum rate transmission setting instruction according to the full power state; when the power supply detection unit obtains that the battery state of the NFCC device is a low power state, the speed setting unit generates a minimum rate transmission setting instruction according to the low power state. Preferably, in the practical application process, the specific configuration of the battery state and the communication rate can be set according to the practical situation.
When the NFC service module triggers an application event, the speed engine module can also generate an NFCC communication rate setting instruction according to the application event type through the speed setting unit, and correspondingly, different NFCC communication rate setting instructions are configured for different application event types. For example, when the NFC service module triggers an NFCC firmware download event, the speed setting unit generates a maximum rate transmission setting instruction, and when the NFCC firmware download event is not triggered, the speed setting unit generates a medium rate transmission setting instruction.
When the NFC service module triggers the NFCC data read-write event, the application parameters include the NFCC data read-write size, at the moment, the speed engine module identifies the NFCC data read-write size through the data size identification unit, and the speed setting unit generates the NFCC communication rate setting instruction according to the data read-write size. For example, when NFCC data is read and written, if the data size identification unit identifies that the transmission/reception data is greater than 256 bytes, the speed engine module generates a maximum rate transmission setting instruction by the speed setting unit, and if the data size identification unit identifies that the transmission/reception data is less than 24 bytes, the speed setting unit generates a minimum rate transmission setting instruction, otherwise, the speed setting unit generates a medium rate transmission setting instruction. The transmission rates corresponding to different data sizes can be set according to actual application conditions.
Preferably, when the battery power change and the application event trigger occur simultaneously, the speed engine module generates the NFCC communication rate setting instruction according to the priority, and the priority may be flexibly configured according to the scene needs. For example, the configuration is to generate an NFCC communication rate setting instruction as a first priority according to the battery power change information, generate an NFCC communication rate setting instruction as a second priority according to the application event type, and use the NFCC data read-write event as a last priority in the application event type.
S3: the NFC HAL layer sends the communication speed setting instruction to the kernel driving module;
s4: the kernel driving module receives and executes the communication speed setting instruction;
specifically, after the NFCC communication rate setting instruction is generated, the NFC HAL layer sends the NFCC communication rate setting instruction to the kernel driver module, and the kernel driver module receives and executes the NFCC communication rate setting instruction to complete the setting of the communication rate of the NFCC device.
Under certain conditions, such as the conditions that the NFCC device is in a low power state, the NFCC firmware downloading event is triggered, and the data read-write volume is less than the set number of bytes, the NFC device is adjusted to operate at a lower communication rate according to the operation state of the NFCC device, so that the NFC power consumption can be effectively reduced. And when the NFCC equipment is in a low-power state, if the NFCC equipment operates in a high-speed mode, the current consumption is overlarge, at the moment, an error condition easily occurs in data transmission, and if the communication speed is correspondingly set, the NFCC equipment operates in a low-speed mode, so that the NFCC equipment operates in a low-speed mode under low power, data can be stably transmitted, and the reliability of the operation of the NFCC equipment is effectively improved.
According to the change information of the battery power of the NFCC equipment and the type of the application event, the NFCC communication rate is dynamically adjusted, so that the dynamic power consumption of NFC is reduced, stable data transmission is ensured, and the running reliability of the NFCC equipment is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.

Claims (9)

1. A system for reducing NFC power consumption and improving reliability is applied to NFCC equipment and is characterized by comprising an NFC service module, a protocol stack library, an NFC HAL layer and a kernel driving module, wherein a speed engine module is arranged on the protocol stack library;
the NFC service module is used for acquiring battery power change information and application event types of the NFCC equipment;
the speed engine module is used for generating an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type;
the NFC HAL layer is used for sending the NFCC communication rate setting instruction to the kernel driving module;
the kernel driver module is configured to receive and execute the NFCC communication rate setting instruction.
2. The system of claim 1, wherein the NFC service module is specifically configured to:
acquiring battery power change information of NFCC equipment by adopting a broadcasting mechanism;
and triggering an application event, and acquiring a corresponding application event type according to the application event.
3. The system of claim 2, wherein the application event types include, but are not limited to, NFCC firmware download events, NFCC configuration setting events, NFCC mode setting events, and NFCC data read and write events.
4. The system of claim 3, wherein the speed engine module comprises a power detection unit and a speed setting unit, and the speed engine module is specifically configured to:
acquiring the battery state of the NFCC equipment according to the battery electric quantity change information through a power supply detection unit, and generating an NFCC communication rate setting instruction according to the battery state through a speed setting unit;
and generating an NFCC communication rate setting instruction according to the application event type through a speed setting unit.
5. The system according to claim 4, wherein the speed engine module further includes a data size identification unit, and when the NFCC data read/write event is triggered, the speed engine module is specifically configured to:
the data reading and writing size is identified through the data size identification unit, and the NFCC communication rate setting instruction is generated through the speed setting unit according to the data reading and writing size.
6. A method for reducing NFC power consumption and improving reliability, comprising:
the NFC service module acquires battery power change information and application event types of the NFCC equipment;
the speed engine module generates an NFCC communication rate setting instruction according to the battery electric quantity change information and the application event type;
the NFC HAL layer sends the NFCC communication rate setting instruction to the kernel driving module;
and the kernel driving module receives and executes the NFCC communication rate setting instruction.
7. The method for reducing NFC power consumption and improving reliability according to claim 6, wherein the NFC service module obtains the battery power change information and the application event type of the NFCC device, specifically:
the NFC service module acquires the battery power change information of the equipment by adopting a broadcasting mechanism;
the NFC service module triggers an application event and acquires a corresponding application event type according to the application event;
the application event types include, but are not limited to, an NFCC firmware download event, an NFCC configuration setting event, an NFCC mode setting event, and an NFCC data read-write event.
8. The method for reducing NFC power consumption and improving reliability according to claim 7, wherein the speed engine module generates an NFCC communication rate setting instruction according to the battery power change information and the application event type, specifically:
the speed engine module acquires a battery state according to the battery electric quantity change information of the NFCC equipment through a power supply detection unit, and generates an NFCC communication rate setting instruction according to the battery state through a speed setting unit;
and the speed engine module generates an NFCC communication speed setting instruction according to the application event type through a speed setting unit.
9. The method of claim 8, wherein the generating, by the speed engine module, the NFCC communication rate setting instruction according to the application event type through the speed setting unit includes:
when an NFCC data read-write event is triggered, the speed engine module identifies the data read-write size through the data size identification unit, and generates an NFCC communication rate setting instruction according to the data read-write size through the speed setting unit.
CN202111613763.XA 2021-12-27 2021-12-27 System and method for reducing NFC power consumption and improving reliability Active CN114499592B (en)

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