CN114679716B - Ultra-low power consumption digital baseband system based on ultrahigh frequency RFID (radio frequency identification) tag chip - Google Patents
Ultra-low power consumption digital baseband system based on ultrahigh frequency RFID (radio frequency identification) tag chip Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- 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
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- 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
- H04W52/0287—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level changing the clock frequency of a controller in the equipment
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- 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 provides an ultra-low power consumption digital baseband system based on an ultrahigh frequency RFID label chip. A data decoding module: the device comprises a radio frequency analog front end, a radio frequency analog front end and a radio frequency receiver, wherein the radio frequency analog front end is used for demodulating the coded data, decoding the coded data to obtain decoded data, and verifying the decoded data to obtain a verification result; a data processing module: the command parameter is used for acquiring the command parameter of the decoded data through a preset air protocol, and a control signal is generated through the command parameter; the data reply module: the device is used for generating reply data after executing the control signal, and transmitting the reply data to the radio frequency analog front end according to a specific rate after coding; a power consumption management module: the clock is used for being connected with each module, controlling the on and off of each module and reducing the dynamic power consumption of each module by controlling the jump of the clock.
Description
Technical Field
The invention relates to the technical field of remote controller development, in particular to an ultra-low power consumption digital baseband system based on an ultrahigh frequency RFID (radio frequency identification) tag chip.
Background
At present, the internet of things industry is regarded as an emerging field in recent years, and is concerned by people in various fields, and a block chain derived from the internet of things is a more important national development project, so that a radio frequency identification technology (RFID) in the internet of things technology is applied to a wider range, the RFID can read information of an electronic tag chip in a contactless manner through an automatic identification technology, a digital baseband system is one of core components of the electronic tag chip and also influences performance indexes of the electronic tag chip, in the paper of Balachandran G K, barnet R e.a passive UHF RFID modules with RF over voltage protection and automatic weighted addition [ J ] Circuits and Systems I: relax Papers, IEEE Transactions on,2010,57(9):2291-, therefore, the low power consumption design also becomes an important item in the electronic tag chip technology, and therefore, it is a direction that we need to explore to reduce the power consumption of the digital baseband system in the ultrahigh frequency RFID tag chip.
Disclosure of Invention
The invention provides an ultra-low power consumption digital baseband system based on an ultrahigh frequency RFID label chip, which is used for solving the problem of high power consumption of the digital baseband system.
The ultra-low power consumption digital baseband system based on the ultrahigh frequency RFID label chip comprises:
a data decoding module: the device comprises a radio frequency analog front end, a radio frequency receiver and a radio frequency receiver, wherein the radio frequency analog front end is used for demodulating the coded data, decoding the coded data to obtain decoded data, and verifying the decoded data to obtain a verification result;
a data processing module: the command parameter is used for acquiring the command parameter of the decoded data through a preset air protocol, and a control signal is generated through the command parameter;
the data reply module: the device is used for generating reply data after executing the control signal, encoding the reply data and transmitting the encoded reply data to the radio frequency analog front end according to a preset rate;
a power consumption management module: the device is used for being connected with the data decoding module, the data processing module and the data reply module, controlling the opening and closing of the data decoding module, the data processing module and the data reply module, and reducing the dynamic power consumption of each module by controlling the jumping of a clock.
Preferably, the data decoding module includes:
a data verification unit: the detection module is used for detecting the lead code of the coded data, and receiving the coded data when the detection result is qualified;
a data decoding unit: the device is used for demodulating the coded data for the second time to obtain TPP coded data, obtaining the data length of the TPP coded data through a first counter, presetting three decision gates, comparing the data length with the three decision gates to obtain a comparison data stream, and recombining the comparison data stream to obtain decoded data.
Preferably, the data decoding module further includes:
a data type detection unit: the device is used for analyzing the decoded data, obtaining command information of the decoded data, scheduling and dividing a command header of the command information, and determining divided data; wherein the content of the first and second substances,
the command information includes: command header, command parameters and check data;
a data error detection unit: the device is used for carrying out transmission error check on the decoded data by a cyclic redundancy method to generate a polynomial check result, and when the polynomial check result is a preset check value, the polynomial check result passes the check;
a signal transmission unit: and the data processing module is used for sending a work enabling signal to the data processing module after the coded data is decoded and checked.
Preferably, the data processing module includes:
a signal receiving unit: the first register is used for storing the decoded data in the first register through shifting after receiving the work enabling signal;
a command parameter unit: the device comprises a decoder, a processor and a controller, wherein the decoder is used for determining the position of a command parameter in the decoded data based on a preset air protocol and identifying the command parameter; wherein the content of the first and second substances,
responding to the command when the command parameter is matched with a preset decoding rule;
and when the command parameters are not matched with the preset decoding rule, returning to the data decoding module for decoding again.
Preferably, the command parameter unit further includes:
command response subunit: after the command parameters are identified, the state transition machine is used for carrying out state transition to obtain a command state, and the behavior type of the digital baseband response is determined according to the command state; wherein the content of the first and second substances,
the command states include: preparation, response, arbitration, confirmation, opening, safety and inactivation;
a type judgment unit: the command type used for sequentially detecting the divided data according to the behavior type;
a data processing subunit: determining a corresponding processing module according to the command type and generating a corresponding control instruction; wherein the content of the first and second substances,
the processing module at least comprises: the system comprises an initialization module INIT, a decoding module DECODER, a command detection module CMD-DETECT, an acceptance module RXU, a main state machine module SCU, a sending module TXU, an encoding module ENCDOER, a memory control module MTP-CTL, a frequency division module DIV and a power consumption management module PMU.
Preferably, the generating the corresponding control instruction further includes the following steps:
performing RFID label resetting on the decoding data according to the command type;
determining corresponding RFID label identity information according to the RFID label reset;
initializing the RFID label according to the identity information of the RFID label;
determining a difference parameter of the RFID tag according to the initialization of the RFID tag;
according to the difference parameters, state analysis is carried out, matching verification is carried out on the state of the command, and a corresponding processing module is determined according to the matching verification;
and generating a corresponding control instruction according to the processing module and a preset command conversion protocol.
Preferably, the data reply module includes:
an execution unit: the execution module is used for determining a corresponding execution module according to the control signal and controlling the execution module through the control signal;
a reply data acquisition unit: the execution module is used for receiving the execution state information of the execution module in real time and generating reply data according to the execution state information;
phase shifter state setting unit: the phase shifter is used for determining a covering beam construction beam selection matrix according to the reply data and setting a phase shifter state according to the beam selection matrix;
a baseband coding matrix selection unit: a baseband precoding matrix for determining encoded data from the beam selection matrix;
a signal output unit: and the device is used for encoding the reply data according to the baseband pre-encoding matrix, transmitting the encoded data to the radio frequency analog front end at a preset rate, and determining the processing state of the decoded data.
Preferably, the power consumption management module includes:
a connection control unit: the method is used for determining the connection mode of different modules and monitoring the power consumption data of different modules;
a module control unit: the system comprises a control module, a trigger module and a control module, wherein the control module is used for receiving a trigger response of the air protocol and controlling the opening and closing of different modules according to the trigger response;
a clock supervision unit: the clock signal generation module is used for generating a corresponding clock signal according to the trigger response and generating a control signal according to the clock signal and the power consumption data; wherein, the first and the second end of the pipe are connected with each other,
the control signals include on signals and off signals for different modules.
Preferably, the system further comprises:
a power consumption analysis module: the power consumption analysis module is used for acquiring power consumption data of different modules, generating power consumption distribution maps of the different modules and analyzing the power consumption of the different modules;
an analysis mode setting module: the module analysis mode is set according to the connection relation between different modules; wherein the content of the first and second substances,
the analysis mode comprises: single module analysis, module synchronous analysis and multi-module integrated analysis mode;
a file reading module: the module analysis module is used for setting the input modes of the radio frequency data of different modules and library files of different modules according to the module analysis mode;
an environment definition module: the system comprises a database, a database and a database, wherein the database is used for storing database files of different modules;
a time sequence analysis module: the system comprises a plurality of modules, a time sequence analysis module and a time sequence analysis module, wherein the modules are used for carrying out time-permission analysis on radio frequency data of different modules according to the working environment to obtain a time sequence;
a data acquisition module: determining activity data of different modules according to the time sequence;
a power consumption analysis module: determining corresponding power consumption analysis items according to the activity data, and analyzing the activity data through each power consumption analysis item to determine power consumption data;
a power consumption report generation module: and the power consumption data is used for performing visual conversion to generate a power consumption analysis report.
Preferably, the system further comprises:
the frequency band receiving and transmitting monitoring module: the device is used for monitoring the radio frequency analog front end, acquiring a received and transmitted radio frequency signal, analyzing the frequency band, determining digital baseband signals of different frequency bands, and generating a corresponding relation table of a signal amplitude value and an output power value of the digital baseband signals;
a metering module: the device is used for counting the electric energy data fed in by the external power supply and transmitting the electric energy data to the signal processing and control unit;
a power consumption judgment module: the power consumption calculation method is used for acquiring the signal amplitude value of each frequency band digital baseband signal, acquiring the output power value of each frequency band digital baseband signal according to the signal amplitude value and the corresponding relation table, and calculating the power consumption value of each frequency band digital baseband signal according to the output power value and the electric energy data.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a composition diagram of an ultra-low power consumption digital baseband system based on an ultra-high frequency RFID tag chip in an embodiment of the present invention;
FIG. 2 is a block diagram of a data decoding module according to an embodiment of the present invention;
FIG. 3 is a flow chart of generating control instructions according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, the present invention is an ultra-low power consumption digital baseband system based on an ultra-high frequency RFID tag chip, comprising:
a data decoding module: the device comprises a radio frequency analog front end, a radio frequency analog front end and a radio frequency receiver, wherein the radio frequency analog front end is used for demodulating the coded data, decoding the coded data to obtain decoded data, and verifying the decoded data to obtain a verification result;
a data processing module: the command parameter is used for acquiring the command parameter of the decoded data through a preset air protocol, and a control signal is generated through the command parameter;
the data reply module: the device is used for generating reply data after executing the control signal, and transmitting the reply data to the radio frequency analog front end according to a specific rate after coding;
a power consumption management module: the clock is used for being connected with each module, controlling the on and off of each module and reducing the dynamic power consumption of each module by controlling the jump of the clock.
In the technical scheme, because the power consumption of the prior art is relatively high, the real-time feedback power consumption adjusting mechanism determines the real-time transmitting power of the ultrahigh frequency RFID tag chip by processing the coded data by the radio frequency analog front end, the transmitting power is transmitted to the radio frequency analog front end through the reply data, the radio frequency analog front end dynamically controls the opening and closing of different modules after knowing the real-time transmitting power, so that the power consumption is reduced, in the process, the data processing flow among different modules can be judged, the processed data is closed after being processed, and the data is opened only when being used, so that the dynamic control on and off of different modules is realized, and the dynamic power regulation is realized.
Preferably, as shown in fig. 2, the data decoding module includes:
a data verification unit: the detection module is used for detecting the lead code of the coded data, and receiving the coded data when the detection result is qualified; and when monitoring the coded data, the coded data is obtained by comparing and monitoring preset coding comparison parameters. Common coding techniques consist of: unipolar code, polar code, bipolar code, return-to-zero code, biphase code, non-return-to-zero code, Manchester encoding, differential Manchester encoding, multilevel encoding, 4B/5B encoding. The invention sets the corresponding coding data according to the specific coding technology. But the composition of the encoded data consists of three parts, preamble, content encoding and object encoding of the transmission object.
A data decoding unit: the device is used for demodulating the coded data for the second time to obtain TPP coded data, obtaining the data length of the TPP coded data through a first counter, presetting three decision gates, comparing the data length with the three decision gates to obtain a comparison data stream, and recombining the comparison data stream to obtain decoded data. The three decision gates respectively decide the coded data lead code, the content code and the transmission object, the length of the lead code determines the data type, and the lead code is composed of a separator, a calibrator and a calibrator; the length of the content encoding determines the content parameters, while the final transport object encoding, different data lengths determine different types of transport objects, but the specific transport object also needs to be determined by decoding.
According to the technical scheme, the length of the coded data and the qualification rate of the coded data are judged by monitoring the coded data, only in order to judge whether data is unqualified or not when the radio frequency signal is transmitted, the unqualified data needs to be sent again, and in order to judge how much data is decoded when the data is recombined, the overall power consumption is determined.
Preferably, as shown in fig. 2, the data decoding module further includes:
a data type detection unit: the device is used for analyzing the decoded data, obtaining command information of the decoded data, scheduling and dividing a command header of the command information, and determining divided data; wherein the content of the first and second substances,
the command information includes: command header, command parameters and check data;
a data error detection unit: the device is used for carrying out transmission error check on the decoded data by a cyclic redundancy method to generate a polynomial check result, and when the polynomial check result is a preset check value, the polynomial check result passes the check;
a signal transmission unit: and the data processing module is used for sending a work enabling signal to the data processing module after the coded data are decoded and checked, wherein the work enabling signal is a signal for starting the chip to realize the digital baseband function of the chip.
In the technical scheme, the enable signal generated in the working process is determined by analyzing and dividing the decoded data, and the enable signal determines the power consumption generated in the data decoding process.
Preferably, the data processing module includes:
a signal receiving unit: the first register is used for storing the decoded data in the first register through shifting after receiving the work enabling signal; the shift is preserved in that the largest use of the invention is primarily coded digital shifts, since the invention codes data, the shift is more accurate.
A command parameter unit: the device comprises a decoder, a processor and a controller, wherein the decoder is used for determining the position of a command parameter in the decoded data based on a preset air protocol and identifying the command parameter; wherein the content of the first and second substances,
responding to the command when the command parameter is matched with a preset decoding rule; the purpose of the over-the-air protocol is to carry both decoded data, i.e. data at the user end, and data at the receiving end.
And when the command parameters are not matched with the preset decoding rule, returning to the data decoding module for decoding again.
In the technical scheme, in the process of processing the potential energy signal, the data can be decoded, different powers can be consumed when decoding fails and decoding is correct, and the decoding module is controlled to be turned on or turned off when decoding is judged.
Preferably, the command parameter unit further includes:
command response subunit: after the command parameters are identified, the state transition machine is used for carrying out state transition to obtain a command state, and the behavior type of the digital baseband response is determined according to the command state; wherein the content of the first and second substances,
the command states include: preparation, response, arbitration, confirmation, opening, safety and inactivation; the type of behavior of the digital baseband response is determined by the command state.
A type judgment unit: the command type used for sequentially detecting the divided data according to the behavior type;
a data processing subunit: determining a corresponding processing module according to the command type and generating a corresponding control instruction; wherein the content of the first and second substances,
the processing module at least comprises: the system comprises an initialization module INIT, a decoding module DECODER, a command detection module CMD-DETECT, an acceptance module RXU, a main state machine module SCU, a sending module TXU, an encoding module ENCDOER, a memory control module MTP-CTL, a frequency division module DIV and a power consumption management module PMU.
The radio frequency signal of the invention is processed by different processing modules finally, so the invention analyzes the command signal and determines the corresponding module. The other modules can then perform static processing without consuming power, not all modules being started.
Preferably, as shown in fig. 3, the generating of the corresponding control command further includes the following steps:
performing RFID label resetting on the decoded data according to the command type;
determining corresponding RFID label identity information according to the RFID label reset;
initializing the RFID label according to the identity information of the RFID label;
determining a difference parameter of the RFID tag according to the initialization of the RFID tag;
according to the difference parameters, state analysis is carried out, matching verification is carried out on the state of the command, and a corresponding processing module is determined according to the matching verification;
and generating a corresponding control instruction according to the processing module and a preset command conversion protocol.
The invention has various RFID labels, because the invention needs to regulate the power consumption, and belongs to a real-time regulation state. All RFID tag information can be determined.
Preferably, the data reply module includes:
an execution unit: the execution module is used for determining a corresponding execution module according to the control signal and controlling the execution module through the control signal;
a reply data acquisition unit: the execution module is used for receiving the execution state information of the execution module in real time and generating reply data according to the execution state information;
phase shifter state setting unit: the phase shifter is used for determining a covering beam construction beam selection matrix according to the reply data and setting a phase shifter state according to the beam selection matrix;
a baseband coding matrix selection unit: a baseband pre-coding matrix used for determining the coded data according to the wave beam selection matrix;
a signal output unit: and the device is used for encoding the reply data according to the baseband pre-encoding matrix, transmitting the encoded data to the radio frequency analog front end at a preset rate, and determining the processing state of the decoded data.
In the above technical solution, in order to determine real-time power consumption when replying to the module, the invention processes the beam of the waveform of the radio frequency signal to determine the final data processing state, and the decoded processing state determines power consumption.
Preferably, the power consumption management module includes:
a connection control unit: the method is used for determining the connection mode of different modules and monitoring the power consumption data of different modules;
a module control unit: the system comprises a control module, a trigger module and a control module, wherein the control module is used for receiving a trigger response of the air protocol and controlling the opening and closing of different modules according to the trigger response;
a clock supervision unit: the clock signal generation module is used for generating a corresponding clock signal according to the trigger response and generating a control signal according to the clock signal and the power consumption data; wherein the content of the first and second substances,
the control signals include on signals and off signals for different modules.
In the above technical solution, whether different modules are triggered or not is judged by supervising different modules, that is, whether the different modules are working or not, so that the modules which are not working are closed, and the working modules are opened, thereby achieving the purpose of reducing power consumption.
Preferably, the system further comprises:
a power consumption analysis module: the power consumption analysis module is used for acquiring power consumption data of different modules, generating power consumption distribution maps of the different modules and analyzing the power consumption of the different modules; the power consumption of different modules at different moments can be marked in the power consumption distribution map, and the specific information of the power consumption is determined by colored drawings.
An analysis mode setting module: the module analysis mode is set according to the connection relation between different modules; wherein the content of the first and second substances,
the analysis mode comprises: single module analysis, module synchronous analysis and multi-module integrated analysis mode;
a file reading module: the module analysis module is used for setting the input modes of the radio frequency data of different modules and library files of different modules according to the module analysis mode;
an environment definition module: the system comprises a database, a database and a database, wherein the database is used for storing database files of different modules;
a time sequence analysis module: the system comprises a plurality of modules, a time sequence analysis module and a time sequence analysis module, wherein the modules are used for carrying out time-permission analysis on radio frequency data of different modules according to the working environment to obtain a time sequence;
a data acquisition module: determining activity data of different modules according to the time sequence;
a power consumption analysis module: determining corresponding power consumption analysis items according to the activity data, and analyzing the activity data through each power consumption analysis item to determine power consumption data;
a power consumption report generation module: and the power consumption data is used for performing visual conversion to generate a power consumption analysis report.
In the technical scheme, module identification is required for power consumption data of different modules, so that a library file is set, the modules can be judged to be triggered and work through variables of the library file, and the power consumption data report is generated by analyzing the power consumption of the modules.
Preferably, the system further comprises:
the frequency band receiving and transmitting monitoring module: the device is used for monitoring the radio frequency analog front end, acquiring a received and transmitted radio frequency signal, analyzing the frequency band, determining digital baseband signals of different frequency bands, and generating a corresponding relation table of a signal amplitude value and an output power value of the digital baseband signals;
a metering module: the device is used for counting the electric energy data fed in by the external power supply and transmitting the electric energy data to the signal processing and control unit;
a power consumption judging module: the power consumption calculation method is used for acquiring the signal amplitude value of each frequency band digital baseband signal, acquiring the output power value of each frequency band digital baseband signal according to the signal amplitude value and the corresponding relation table, and calculating the power consumption value of each frequency band digital baseband signal according to the output power value and the electric energy data.
For different power consumption data, the invention can determine the frequency band of the signal through the received and transmitted signal by monitoring the radio frequency analog front end, the power consumed by the signal of different frequency bands is different, the power can be obtained by calculating the signal amplitude value and the output power value, and the invention can calculate the specific power consumption value through the signal amplitude value and the output power value.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. Ultra-low power consumption digital baseband system based on hyperfrequency RFID label chip, its characterized in that includes:
a data decoding module: the device comprises a radio frequency analog front end, a radio frequency receiver and a radio frequency receiver, wherein the radio frequency analog front end is used for demodulating the coded data, decoding the coded data to obtain decoded data, and verifying the decoded data to obtain a verification result;
a data processing module: the command parameter is used for acquiring the command parameter of the decoding data through a preset air protocol, and a control signal is generated through the command parameter;
the data reply module: the device is used for generating reply data after executing the control signal, encoding the reply data and transmitting the encoded reply data to the radio frequency analog front end according to a preset rate;
a power consumption management module: the data processing module is used for controlling the data decoding module, the data processing module and the data reply module to be opened and closed, and reducing the dynamic power consumption of each module by controlling the jumping of a clock;
the data reply module comprises:
an execution unit: the execution module is used for determining a corresponding execution module according to the control signal and controlling the execution module through the control signal;
a reply data acquisition unit: the execution module is used for receiving the execution state information of the execution module in real time and generating reply data according to the execution state information;
phase shifter state setting unit: the phase shifter is used for determining a covering beam construction beam selection matrix according to the reply data and setting a phase shifter state according to the beam selection matrix;
a baseband coding matrix selection unit: a baseband precoding matrix for determining encoded data from the beam selection matrix;
a signal output unit: and the device is used for encoding the reply data according to the baseband pre-encoding matrix, transmitting the encoded data to the radio frequency analog front end at a preset rate, and determining the processing state of the decoded data.
2. The ultra-low power consumption digital baseband system based on ultra-high frequency RFID tag chip as claimed in claim 1, wherein said data decoding module comprises:
a data checking unit: the detection module is used for detecting the lead code of the coded data, and receiving the coded data when the detection result is qualified;
a data decoding unit: the device is used for demodulating the coded data for the second time to obtain TPP coded data, obtaining the data length of the TPP coded data through a first counter, presetting three decision gates, comparing the data length with the three decision gates to obtain a comparison data stream, and recombining the comparison data stream to obtain decoded data.
3. The ultra-low power consumption digital baseband system based on ultra-high frequency RFID tag chip according to claim 2, wherein said data decoding module further comprises:
a data type detection unit: the device is used for analyzing the decoded data, obtaining command information of the decoded data, scheduling and dividing a command header of the command information, and determining divided data; wherein the content of the first and second substances,
the command information includes: command header, command parameters and check data;
a data error detection unit: the device is used for carrying out transmission error check on the decoded data by a cyclic redundancy method to generate a polynomial check result, and when the polynomial check result is a preset check value, the polynomial check result passes the check;
a signal transmission unit: and the data processing module is used for sending a work enabling signal to the data processing module after the coded data is decoded and checked.
4. The UHF RFID tag chip based ultra-low power consumption digital baseband system of claim 3, wherein said data processing module comprises:
a signal receiving unit: the first register is used for storing the decoded data in the first register through shifting after receiving the work enabling signal;
a command parameter unit: the device comprises a decoder, a processor and a controller, wherein the decoder is used for determining the position of a command parameter in the decoded data based on a preset air protocol and identifying the command parameter; wherein, the first and the second end of the pipe are connected with each other,
responding to the command when the command parameter is matched with a preset decoding rule;
and when the command parameters are not matched with the preset decoding rule, returning to the data decoding module for decoding again.
5. The UHF RFID tag chip based ultra-low power consumption digital baseband system of claim 4, wherein the command parameter unit further comprises:
the command response subunit: after the command parameters are identified, the state transition machine is used for carrying out state transition to obtain a command state, and the behavior type of the digital baseband response is determined according to the command state; wherein the content of the first and second substances,
the command states include: preparation, response, arbitration, confirmation, opening, safety and inactivation;
a type judgment unit: the command type used for sequentially detecting the divided data according to the behavior type;
a data processing subunit: determining a corresponding processing module according to the command type and generating a corresponding control instruction; wherein the content of the first and second substances,
the processing module at least comprises: the system comprises an initialization module INIT, a decoding module DECODER, a command detection module CMD-DETECT, an acceptance module RXU, a main state machine module SCU, a sending module TXU, an encoding module ENCDOER, a memory control module MTP-CTL, a frequency division module DIV and a power consumption management module PMU.
6. The UHF RFID tag chip based ultra-low power consumption digital baseband system of claim 5, wherein said generating corresponding control instructions further comprises the steps of:
performing RFID label resetting on the decoding data according to the command type;
determining corresponding RFID label identity information according to the RFID label reset;
initializing the RFID label according to the identity information of the RFID label;
determining a difference parameter of the RFID tag according to the initialization of the RFID tag;
according to the difference parameters, state analysis is carried out, matching verification is carried out on the state of the command, and a corresponding processing module is determined according to the matching verification;
and generating a corresponding control instruction according to the processing module and a preset command conversion protocol.
7. The UHF RFID tag chip based ultra-low power consumption digital baseband system of claim 1, wherein said power consumption management module comprises:
a connection control unit: the method is used for determining the connection mode of different modules and monitoring the power consumption data of different modules;
a module control unit: the system comprises a control module, a trigger module and a control module, wherein the control module is used for receiving a trigger response of the air protocol and controlling the opening and closing of different modules according to the trigger response;
a clock supervision unit: the clock signal generation module is used for generating a corresponding clock signal according to the trigger response and generating a control signal according to the clock signal and the power consumption data; wherein the content of the first and second substances,
the control signals include on signals and off signals for different modules.
8. The ultra-low power consumption digital baseband system based on UHF RFID tag chip as claimed in claim 1, wherein said system further comprises:
a power consumption analysis module: the power consumption analysis module is used for acquiring power consumption data of different modules, generating power consumption distribution maps of the different modules and analyzing the power consumption of the different modules;
an analysis mode setting module: the analysis module is used for setting an analysis mode according to the connection relation between different modules; wherein the content of the first and second substances,
the analysis mode comprises: single module analysis, module synchronous analysis and multi-module integrated analysis mode;
a file reading module: the system comprises a database, a data analysis module and a data analysis module, wherein the database is used for storing the radio frequency data of different modules;
an environment definition module: the system comprises a database, a database and a database, wherein the database is used for storing database files of different modules;
a time sequence analysis module: the system comprises a plurality of modules, a time sequence analysis module and a time sequence analysis module, wherein the modules are used for carrying out time sequence analysis on radio frequency data of different modules according to the working environment to obtain a time sequence;
a data acquisition module: determining activity data of different modules according to the time sequence;
a power consumption analysis module: determining corresponding power consumption analysis items according to the activity data, and analyzing the activity data through each power consumption analysis item to determine power consumption data;
a power consumption report generation module: and the power consumption data is visually converted to generate a power consumption analysis report.
9. The ultra-low power consumption digital baseband system based on UHF RFID tag chip as claimed in claim 1, wherein said system further comprises:
the frequency band receiving and transmitting monitoring module: the device is used for monitoring the radio frequency analog front end, acquiring a received and transmitted radio frequency signal, analyzing the frequency band, determining digital baseband signals of different frequency bands, and generating a corresponding relation table of a signal amplitude value and an output power value of the digital baseband signals;
a metering module: the device is used for counting the electric energy data fed in by the external power supply and transmitting the electric energy data to the signal processing and control unit;
a power consumption judging module: the power consumption calculation method is used for acquiring the signal amplitude value of each frequency band digital baseband signal, acquiring the output power value of each frequency band digital baseband signal according to the signal amplitude value and the corresponding relation table, and calculating the power consumption value of each frequency band digital baseband signal according to the output power value and the electric energy data.
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