Disclosure of Invention
The technical problem to be solved by the invention is to provide an intelligent parking system based on mobile near field communication aiming at the prior art, the intelligent parking system can intelligently provide parking space information and navigation information for vehicle drivers, and can also be used for completing parking fee payment safely and quickly by utilizing an NFC payment terminal carried along with a vehicle conveniently by the vehicle drivers without manual charging, thereby improving the management efficiency of a parking lot.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent parking system based on the mobile near field communication is characterized by comprising a parking lot control system, a parking lot management subsystem, a parking lot navigation subsystem, a parking lot communication subsystem, a parking lot data storage subsystem, an NFC parking space charging subsystem, a parking space execution subsystem and a vehicle to be parked; wherein:
the parking lot control system comprises a first control module, a first storage module, a GIS path planning module, a positioning data processing module, a traffic flow analysis module, a parking space residual analysis module, a patrol prompt module and a first Zigbee communication module, wherein the first storage module, the GIS path planning module, the positioning data processing module, the traffic flow analysis module, the parking space residual analysis module, the patrol prompt module and the first Zigbee communication module are respectively connected with the first control module; the first storage module is connected with a GIS path planning module, a positioning data processing module, a traffic flow analysis module, a parking space residual analysis module and a first Zigbee communication module, and the GIS path planning module is connected with the positioning data processing module and the parking space residual analysis module; wherein:
the GIS path planning module is used for planning and forming an optimal path for the vehicle to be parked to run to the position of the remaining parking space according to the positioning data of the vehicle to be parked processed by the positioning data processing module and the remaining parking space analysis result of the parking space remaining analysis module, and sending the optimal path to the parking lot management subsystem through the first Zigbee communication module and the second Zigbee communication module in the parking lot management subsystem; the positioning data processing module is used for processing according to the position data of the vehicle to be parked sent by the parking lot management subsystem and generating real-time position data when the vehicle to be parked moves in the parking lot; the traffic flow analysis module calculates traffic flow conditions in each time period in the parking lot according to the switching times of the access barrier in the parking lot, which are sent by the parking space execution subsystem, and sends the traffic flow conditions to the first storage module for storage; the parking space remaining analysis module processes and analyzes the number of remaining parking spaces in the image according to the parking space image sent by the parking lot execution subsystem, and sends the number of remaining parking spaces to the first control module; the first control module is used for controlling the starting of other modules in the parking lot control system, and simultaneously commanding the patrol prompting module to start patrol reminding in a time period with large traffic flow according to a traffic flow analysis result given by the traffic flow analysis module so as to remind a manager of the parking lot to go to the parking lot for patrol and guide vehicles; the first Zigbee communication module is responsible for data transmission between the parking lot control system and the outside;
the parking lot management subsystem comprises a second control module, a second storage module, a navigation information generation module, a navigation information pushing module, a plurality of monitoring camera modules and a second Zigbee communication module, wherein the second storage module, the navigation information generation module, the navigation information pushing module, the plurality of monitoring camera modules and the second Zigbee communication module are respectively connected with the second control module; wherein:
the navigation information generation module is used for generating a parking lot entrance navigation data packet from a parking lot entrance gateway of the NFC parking space charging subsystem to a parking lot entrance navigation data packet at each remaining parking space position and a parking lot exit navigation data packet from each remaining parking space position to a parking lot exit gateway according to the remaining parking space condition analyzed by the parking space remaining analysis module in the parking lot control system, and sending the parking lot entrance navigation data packet and the parking lot exit navigation data packet to the navigation information pushing module; the navigation information pushing module is used for sending the parking lot entrance navigation data packet and the parking lot exit navigation data packet generated by the navigation information generating module to a fourth storage module of the NFC parking space charging subsystem; the monitoring camera module is used for shooting the video condition at the parking lot and sending the video to the first storage module in the parking lot control system for storage by the second Zigbee communication module after the video is stored in the second storage module;
the parking lot communication subsystem comprises a third control module, and a Zigbee relay communication module, a WIFI relay communication module, an LTE communication module and a spectrum sensing module which are respectively connected with the third control module; the frequency spectrum sensing module is used for sending the monitored idle communication frequency bands to the third control module after monitoring the idle communication frequency bands around the position where the parking lot is located, so that the third control module controls the LTE communication module to switch among the communication frequency bands;
the NFC parking space charging subsystem comprises a fourth control module, a fourth storage module, an NFC charging module, a license plate recognition module, an infrared sensor, a paper invoice printing module, an electronic receipt generation module and a fourth Zigbee communication module, wherein the fourth storage module is respectively connected with the fourth control module; the license plate recognition module, the paper invoice printing module and the electronic receipt generation module are respectively connected with the fourth storage module; the fourth storage module is connected with a fourth Zigbee communication module; wherein:
the license plate recognition module is used for shooting the license plate number of the vehicle at the current position and respectively sending the license plate number to the fourth control module and the fourth storage module; the infrared sensor is used for sending an infrared detection result to the fourth control module when infrared data are detected, and the fourth control module commands the license plate recognition module to start license plate recognition work; the paper invoice printing module is used for printing and recording an invoice carrying parking charge details according to a command of the fourth control module; the electronic receipt generating module generates an electronic receipt in which parking charge details are recorded according to a command of the fourth control module, and sends the electronic receipt to an NFC payment terminal on the vehicle through the NFC charge module;
the parking space execution subsystem comprises a fifth controller, a parking space indication screen, a parking space indication lamp, a parking space entrance barrier, a parking space exit barrier, a parking space blocking device, a parking space outline lamp, a parking space image collector, a fifth storage module, a piezoelectric ceramic plate and an electric accumulator, wherein the parking space indication screen, the parking space indication lamp, the parking space entrance barrier, the parking space exit barrier, the parking space blocking device, the parking space outline lamp, the parking space image collector, the fifth storage; the parking space indicator lamp and the parking space clearance lamp are respectively connected with the accumulator; wherein:
the parking space indication screen is used for displaying the current parking space remaining condition of the parking lot and indicating the position direction of the remaining parking space; the parking space indicator lamp is arranged at the remaining parking space and used for reminding that the current indicator lamp is positioned at the remaining parking space where the vehicle can be parked; the parking lot drives into the barrier gate, and is lifted according to the command of the fifth control module so as to allow or prohibit external vehicles from entering the parking lot; the parking lot exit barrier is lifted according to the command of the fifth control module so as to allow or prohibit the vehicles in the parking lot to exit the parking lot; the parking space blocking device blocks the vehicle to be driven out according to the command of the fifth control module when the current vehicle does not pay parking fee so as to prevent the vehicle from not paying the parking fee after parking in the parking lot; the parking space outline lamp starts illumination after a vehicle enters the parking lot according to an outline showing command of the fifth control module so as to show the boundary condition of the current parking space, so that the vehicle can be conveniently and orderly parked and the vehicle can be prevented from being scratched; the parking space image collector is used for shooting parking space images of the remaining parking spaces and sending the parking space images to the fifth control module, so that the fifth control module calculates the length and width conditions of the current remaining parking spaces and commands the parking space indication screen to display the length and width conditions of the remaining parking spaces, and a driver can conveniently select a proper parking space according to the length and width of the vehicle; the piezoelectric ceramic plates are paved below the parking spaces, convert the pressure applied to the piezoelectric ceramic plates when the vehicle passes by into electric energy and store the electric energy in the accumulators so as to supply the illumination of the parking space indicating lamps and the parking space outline lamps;
the vehicle to be parked is provided with an NFC payment terminal capable of being connected with a second bank system and a GPS positioning terminal capable of being connected with the NFC parking place charging subsystem for sending, and an SIM card is embedded in the NFC payment terminal; wherein: the process that the NFC payment terminal pays with the NFC charging module in the NFC parking space charging subsystem necessarily comprises the following steps:
step 1, an NFC payment terminal collects and stores identity card information of a legal owner, then collects human body magnetic field data of the legal owner in real time within a preset time period, constructs a human body magnetic field database of the legal owner within each preset time period, and takes the constructed human body magnetic field database as identity identification information of the legal owner; the preset time period comprises a first preset time period and a second preset time period, and the first preset time period is 06: 00-18: 00; the second preset time period is 18:00 to 06:00 the next day;
step 2, the NFC payment terminal collects body odor data of a legal owner, receives fingerprint information and vein information corresponding to each finger of the legal owner, and constructs a body odor database of the legal owner of the NFC payment terminal and a fingerprint information database and a vein information database corresponding to each finger; the NFC payment terminal respectively gives a first priority for identity recognition to a human body magnetic field of a legal owner and a second priority for identity recognition to body odor data; in identifying whether the operator has a legitimate identity, the first priority has a higher identification confidence than the second priority;
step 3, displaying a preset number of payment password input frames to a legal owner on a touch display screen of the NFC payment terminal, wherein each payment password input frame corresponds to seven basic color lists for optional selection; wherein, seven basic colors in the basic color list are respectively red, orange, yellow, green, cyan, blue and purple, and each payment password input box corresponds to a group of payment allowable colors; each group of payment allowable colors is any combination of the seven basic colors;
step 4, according to the basic color list corresponding to each payment password input frame on the touch display screen, a legal owner of the NFC payment terminal sequentially selects basic color combinations with custom kinds of numbers to be respectively used as payment allowable colors of each payment password input frame, and the NFC payment terminal respectively and correspondingly stores the payment allowable colors corresponding to each payment password input frame; the legal owner of the NFC payment terminal correspondingly inputs the integral combination of the payment allowable colors in each payment password input box to form a secondary payment confirmation password of the NFC payment terminal about payment;
step 5, the NFC payment terminal generates an identity authentication key representing the authentication information legally owned by the legal owner of the NFC payment terminal to the NFC payment terminal according to the identity card information of the legal owner and the payment password for the second time confirmation; the identity authentication key is marked as K, and the process of acquiring the identity authentication key K comprises the following steps 5-1 to 5-5:
step 5-1, the NFC payment terminal extracts the identity card information of the legal owner and respectively acquires the accumulated sum of all digital identity card information, the average value of the identity card information and the identity card information characteristic value in the identity card information; wherein:
x is the accumulated sum of the identity card information, Y is the average value of the identity card information, and Z is the characteristic value of the identity card information; x is the number ofiIs the ith in the identity cardThe number of each digit, m is the number of all digits in the identity card information;
step 5-2, obtaining a first authentication secret key value which is effective in a preset time period according to the obtained accumulated sum value and average value of the identity card information and the identity card information characteristic value; the first authentication key value is denoted by k, and the first authentication key value k is obtained by the following formula:
k3=Xt2+Yt+Z;
wherein T is the moment when the legal owner of the NFC payment terminal inputs the secondary confirmation payment password, and T is the moment1For the start of a predetermined time period, T, of the identity authentication key2The termination time of the preset time period of the identity authentication key is set;
5-3, extracting each group of payment allowable colors corresponding to each payment password input box by the NFC payment terminal, and calculating to obtain a gray average value of each group of payment allowable colors corresponding to each payment password input box; the gray average value I (n) of a group of payment allowed colors corresponding to each payment password input box is obtained by the following formula:
wherein I (n) is the gray average value of the payment allowable color of the group corresponding to the nth payment password input box, JnThe number of basic colors corresponding to the payment allowable colors in the nth payment code input box, and I (n, j) is the nthJ is more than or equal to 1 and less than or equal to J in the gray value of the jth basic color in the n payment password input framesn;
Step 5-4, calculating the gray level average value I of the payment allowable colors in all the payment password input boxes according to the gray level average value of a group of payment allowable colors corresponding to each payment password input box; wherein:
n is the number of all payment password input boxes, and I (N) is the gray average value of a group of payment allowable colors corresponding to the nth payment password input box;
step 5-5, obtaining an identity authentication secret key which is effective in a preset time period according to the obtained first authentication secret key value k and the payment allowable color gray level average value I, and storing the identity authentication secret key into the NFC payment terminal; the identity authentication key is marked as K, and the identity authentication key K is obtained by the following formula:
K3=Xt2+Yt+I,t∈[T1,T2];
t is the moment when the legal owner of the NFC payment terminal inputs the secondary confirmation payment password, T1For the start of a predetermined time period, T, of the identity authentication key2The termination time of the preset time period of the identity authentication key is set;
step 6, the NFC payment terminal sends the real identity identification number to a certification authority, and the certification authority generates an anonymous identity identification number for NFC payment terminal transaction; the NFC charging module sends the real identity identification number to the certification authority, and the certification authority generates the NFC charging moduleAn anonymous identity number for the block transaction; wherein, the real identity identification number of the NFC payment terminal is marked as MobileidThe certification authority is marked as TSM, and the anonymous identity identification number of the NFC payment terminal is marked as MobileaidAnd the real identity identification number of the NFC charging module is recorded as PoSidAnd the anonymous identity identification number of the NFC charging module is marked as PoSaid;
Mobileaid=sH(Mobileid),PoSaid=sH(PoSid) (ii) a Wherein, sH (·) is a hash anonymous function;
step 7, a driver uses the NFC payment terminal to register a payment account of the driver in the first bank system in advance, and a parking lot manager uses the NFC charging module to register a parking lot collection account in the second bank system in advance; wherein, the payment account of the NFC payment terminal is marked as MobileacctAnd the collection account of the NFC charging module is recorded as PoSacct;
Step 8, when the NFC payment terminal is close to the NFC charging module, the NFC charging module sends transaction information comprising the amount of money to be paid, the electronic receipt single number, the anonymous identity identification number of the NFC charging module, the current position air humidity, the electronic receipt single number generation time and a secret key shared by the electronic receipt single number and an authentication mechanism to the NFC payment terminal; wherein the transaction information is marked as EPoSWherein: ePoS=E(ReceiptNum,Price,PoSaid,RHPoS,T,KPoS-TSM);
Wherein, the ReciptNumA receipt number generated for the NFC charging module; price is the amount of money to be paid, PoS, of the NFC payment terminalaidVirtual identity number, RH, for NFC charging modulePoSFor the air humidity of the current position of the NFC charging module, T is the generation time of the electronic receipt number, KPoS-TSMA shared key for the NFC charging module and the certification authority;
step 9, the NFC charging module sends the transaction information, the payment account of the NFC charging module and the authentication information of the shared secret key between the NFC charging module and the authentication mechanism in the step 7 to the authentication mechanism, and NFC payment is carried outThe terminal sends payment authentication information to an authentication mechanism; the payment authentication information sent by the NFC payment terminal comprises a temporary identification code TMSI thereof and a shared secret key K between the temporary identification code TMSI and an authentication mechanismMobile-TSMIts location area identification code LAI, its current location air humidity RHMobileNFC payment terminal payment account MobileacctAnd the transaction information sent by the NFC charging module; the payment authentication information sent by the NFC payment terminal is recorded as EMobile;
EMobile=E(ReceiptNum,Price,PoSaid,Mobileaid,RHPoS,RHMobile,T,TMSI,LAI,KMobile-TSM);
Step 10, the certification authority extracts the anonymous identity identification number of the NFC charging module in the information sent by the NFC charging module, and carries out matching judgment based on the real identity identification number of the NFC charging module stored in the certification authority:
when the authentication mechanism utilizes the real identity identification number of the NFC charging module and the anonymous identity identification number of the NFC charging module generated by the Hash anonymous function to be matched with the extracted anonymous identity identification number of the NFC charging module, the authentication mechanism shows that the NFC charging module which sends the authentication information is credible, and then the authentication mechanism executes the step 11; otherwise, the authentication mechanism cuts off the communication between the authentication information and the NFC charging module corresponding to the authentication information, and sends warning information containing the anonymous identity identification number of the NFC charging module to the NFC payment terminal;
step 11, the authentication mechanism extracts the temporary identification code and the location area identification code in the payment authentication information of the NFC payment terminal and sends feedback authentication information comprising the temporary identification code of the NFC payment terminal, the location area identification code and a shared secret key between the temporary identification code of the NFC payment terminal and the location area identification code and a mobile operator to the mobile operator; wherein, the feedback authentication information is recorded as EMNO,EMNO=E(TMSI,LAI,KTSM-MNO);KTSM-MNORepresenting a shared key between the certification authority and the mobile operator;
step 12, the mobile operator extracts the temporary identification code of the NFC payment terminal and the identification code of the position area in the feedback authentication information by using a shared secret key between the mobile operator and the authentication mechanism, retrieves the mobile user identification code corresponding to the temporary identification code according to the temporary identification code of the NFC payment terminal, and then sends the authenticated information comprising the temporary identification code of the NFC payment terminal, the identification code of the position area and the identification code of the mobile user to the authentication mechanism;
step 13, the authentication mechanism extracts the air humidity of the current position of the NFC charging module contained in the authentication information and the air humidity of the current position of the NFC payment terminal contained in the payment authentication information, and when the difference between the air humidity of the current position of the NFC charging module and the air humidity of the current position of the NFC payment terminal is judged to be lower than a preset air humidity difference threshold value, the authentication mechanism sends payment confirmation command information to the first bank system; the payment confirmation command information comprises the amount to be deducted, a receipt number, receipt number generation time, an NFC payment terminal payment account, an NFC charging module collection account and a shared secret key between the authentication mechanism and the first bank system; confirming payment command information is recorded as EConfirmWherein E isConfirm=(Amtdedt,ReceiptNum,T,Mobileacct,PoSacct,);
Wherein, AmtdedtPaying the amount of money to be deducted from the account for the NFC payment terminal,the first BANK system is marked as BANK for sharing secret key between the certification authority and the first BANK system1;
Step 14, the first bank system deducts the corresponding amount in the payment account of the NFC payment terminal according to the payment confirmation command information sent by the authentication mechanism and the corresponding amount to be deducted, and transfers the amount deducted in the payment account of the NFC payment terminal to the NFC charging module in the parking lot collection account of the second bank system, and after the operation is completed, the first bank system sends the information of the deduction receipt including the amount of the deduction, the deduction time, the bank authorized deduction number, the deduction account, the collection account, and the shared secret key to the NFC payment terminal, and goes to step 14 to perform the secondary payment confirmation operation;
step 15, the NFC payment terminal collects the magnetic field intensity, body odor data, finger vein information and time value of the person holding the NFC payment terminal, and identifies the identity of the person holding the NFC payment terminal:
when the NFC payment terminal judges that the collected human body magnetic field intensity exists in a human body magnetic field intensity database which is stored in the NFC payment terminal and corresponds to the time within a preset time period, and the collected body odor data are also stored in the body odor database which is stored in the NFC payment terminal, the fact that the holding person is a legal owner of the NFC payment terminal is indicated, and then the NFC payment terminal executes the step 16; otherwise, the NFC payment terminal refuses any operation of the holding personnel on the NFC payment terminal within a preset time period;
step 16, the NFC payment terminal displays the payment password input frames and the basic color lists corresponding to the payment password frames on the touch display screen of the NFC payment terminal, and after the holding personnel sequentially inputs the payment permission groups, the NFC payment terminal determines according to the payment permission colors in the payment password input frames input by the holding personnel:
when the payment permission color in each payment password input box is completely consistent with the payment permission color which is correspondingly stored in the step 4 of the NFC payment terminal, the NFC payment terminal executes the step 17 if the correct secondary confirmation payment password is input; otherwise, the NFC payment terminal refuses any operation of the holding person on the NFC payment terminal within a preset time period if the input of the wrong secondary confirmation payment password is indicated;
step 17, the NFC payment terminal requests the holding personnel to input the identification card information of the holding personnel, and generates a corresponding identification authentication key K 'based on the identification card information of the holding personnel, and when the NFC payment terminal determines that the generated identification authentication key K' is consistent with the stored identification authentication key K, the NFC payment terminal sends a transfer confirmation command to the first bank system; otherwise, the NFC payment terminal refuses any operation of the holding personnel on the NFC payment terminal within a preset time period;
step 18, after the first banking system receives the payment command sent by the NFC payment terminal, the first banking system transfers the money corresponding to the step 14 to the collection account of the NFC charging module, and after the second banking system receives the money transferred by the first banking system, sends Amt money including the collection amountdedtBANK authorized collection order number BANKTransAnd collection account PoSacctAnd the time of collection T1The information of the receipt is sent to the NFC charging module; receipt information label EReceiptWherein: eReceipt=E(Amtdedt,BANKTrans,PoSacct,T1)。
In order to further ensure the safety of the secondary confirmation payment password and improve the parking fee of the parking lot which is safer for the driver to pay by using the NFC payment terminal, as a further improvement, in the step 4, the secondary confirmation payment password paid by the NFC payment terminal is an integral combination of all the payment allowable colors which are sequentially and correspondingly input in each payment password input box by the legal owner according to the sequence.
Compared with the prior art, the invention has the advantages that:
firstly, the parking lot control system of the intelligent parking system analyzes the condition of the remaining parking space of the current parking lot according to the traffic flow condition of the parking lot, and when a vehicle to be parked enters an entrance of the parking lot, a GIS path planning module plans the nearest path from the current vehicle to the remaining parking space, and pushes a parking lot entrance navigation data packet and a parking lot exit navigation data packet to automatically navigate the vehicle, so as to provide accurate parking lot guidance information for a driver, and save the time for the vehicle to enter and exit;
secondly, a parking space execution subsystem of the intelligent parking system utilizes a parking space blocking device to prevent a vehicle which does not pay parking fee from entering according to the instruction of a parking lot control system, and can also display the length and width conditions of the remaining parking spaces and parking space instructions so as to enable a vehicle driver to search the remaining parking spaces matched with the length and width of the vehicle;
thirdly, the NFC payment terminal on the vehicle to be parked takes the human body magnetic field database constructed by the NFC payment terminal as identity identification information of a legal owner for operating the NFC payment terminal, and meanwhile, a body odor database of the legal owner and a vein information database corresponding to each finger are constructed, so that the accuracy of the NFC payment terminal for authenticating the legal identity of an operator is improved;
and finally, setting a secondary confirmation payment password which is only known by the legal owner and is related to fee payment on the basis of the basic color, and generating an identity authentication key which is effective in a preset time period, wherein the identity authentication key is obtained on the basis of the accumulated sum, the average, the characteristic value of the identity card information and the first authentication key of all numbers in the identity card information of the legal owner of the NFC payment terminal, so that the safety performance of the payment password of the NFC payment terminal is improved, the payment password is prevented from being cracked, the authentication accuracy rate of whether the NFC payment terminal has legal identity to an operator is further enhanced, and the safety performance of the payment of the NFC payment terminal is improved.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the intelligent parking system based on mobile near field communication in this embodiment includes a parking lot control system 1, a parking lot management subsystem 2, a parking lot navigation subsystem 3, a parking lot communication subsystem 4, a parking lot data storage subsystem 5, an NFC parking space charging subsystem 6, a parking space execution subsystem 7, and a vehicle to be parked 8; wherein:
the parking lot control system 1 comprises a first control module 10, a first storage module 11, a GIS path planning module 12, a positioning data processing module 13, a traffic flow analysis module 14, a parking space residual analysis module 15, a patrol prompt module 16 and a first Zigbee communication module 17, wherein the first storage module 11, the GIS path planning module 12, the positioning data processing module 13, the traffic flow analysis module 14, the parking space residual analysis module 15 and the patrol prompt module 17 are respectively connected with the first control module 10; the first storage module 11 is connected with a GIS path planning module 12, a positioning data processing module 13, a traffic flow analysis module 14, a parking space residual analysis module 15 and a first Zigbee communication module 17, and the GIS path planning module 12 is connected with the positioning data processing module 13 and the parking space residual analysis module 15; wherein:
the GIS path planning module 12 is configured to plan and form an optimal path along which the vehicle 8 to be parked travels to the remaining parking space position according to the positioning data of the vehicle 8 to be parked, which is processed by the positioning data processing module 13, and the remaining parking space analysis result of the parking space remaining analysis module 15, and send the optimal path to the parking lot management subsystem 2 through the first Zigbee communication module 17 and the second Zigbee communication module 25 in the parking lot management subsystem 2; the positioning data processing module 13 is used for processing according to the position data of the vehicle 8 to be parked, which is sent by the parking lot management subsystem 2, and generating real-time position data when the vehicle 8 to be parked moves in the parking lot; the traffic flow analysis module 14 is used for calculating the traffic flow condition in each time period in the parking lot according to the switching times of the access barrier in the parking lot, which are sent by the parking space execution subsystem 7, and sending the traffic flow condition to the first storage module 11 for storage; the parking space remaining analysis module 15 processes and analyzes the number of remaining parking spaces in the image according to the parking space image sent by the parking lot execution subsystem 7, and sends the number of remaining parking spaces to the first control module 10; the first control module 10 is used for controlling the starting of other modules in the parking lot control system 1, and simultaneously commanding the patrol prompting module 16 to start patrol prompting in a time period with large traffic flow according to a traffic flow analysis result given by the traffic flow analysis module 14 so as to prompt a manager in the parking lot to go to the parking lot for patrol and guide vehicles; the first Zigbee communication module 17 is responsible for data transmission between the parking lot control system 1 and the outside;
the parking lot management subsystem 2 comprises a second control module 20, and a second storage module 21, a navigation information generation module 22, a navigation information push module 23, a plurality of monitoring camera modules 24 and a second Zigbee communication module 25 which are respectively connected to the second control module 20; the navigation information generating module 22 is configured to generate a parking lot entrance navigation data packet from the parking lot entrance barrier 73 of the NFC parking space charging subsystem 6 to a parking lot entrance navigation data packet at each remaining parking space position and a parking lot exit navigation data packet from each remaining parking space position to the parking lot exit barrier 74 according to the remaining parking space condition analyzed by the parking space remaining analyzing module 15 in the parking lot control system 1, and send the parking lot entrance navigation data packet and the parking lot exit navigation data packet to the navigation information pushing module 23, so that a driver can know entrance fine information and exit information in the parking lot, and can conveniently exit in time to vacate an empty parking space; the navigation information pushing module 23 is configured to send the parking lot entrance navigation data packet and the parking lot exit navigation data packet generated by the navigation information generating module 22 to the fourth storage module 61 of the NFC parking space charging subsystem 6; the monitoring camera module 24 is configured to shoot a video situation at the parking lot, and after storing the video in the second storage module 21, the video is sent to the first storage module 11 in the parking lot control system 1 by the second Zigbee communication module 25;
the parking lot communication subsystem 4 comprises a third control module 40, and a Zigbee relay communication module 41, a WIFI relay communication module 42, an LTE communication module 43, and a spectrum sensing module 44 which are respectively connected to the third control module 40; the spectrum sensing module 44 is configured to, after monitoring an idle communication frequency band around a position where the parking lot is located, send the monitored idle communication frequency band to the third control module 40, so that the third control module 40 controls the LTE communication module 43 to switch between communication frequency bands; the Zigbee relay communication module 41 serves as a hub for data interaction, and is used for implementing data communication between two Zigbee communication modules; the WIFI relay communication module 42 is used for realizing data interaction of the two WIFI communication modules; an LTE communication module 43 for transmitting data in the intelligent parking system;
the NFC parking space charging subsystem 6 comprises a fourth control module 60, a fourth storage module 61 respectively connected with the fourth control module 60, an NFC charging module 62 connected with the first banking system and the certification authority, a license plate recognition module 63, an infrared sensor 64, a paper invoice printing module 65, an electronic receipt generation module 66 and a fourth Zigbee communication module 67; the license plate recognition module 63, the paper invoice printing module 65 and the electronic receipt generation module 66 are respectively connected with the fourth storage module 61; the fourth storage module 61 is connected to the fourth Zigbee communication module 67; wherein:
the license plate recognition module 63 is used for shooting the license plate number of the vehicle at the current position, respectively sending the license plate number to the fourth control module 60 and the fourth storage module 61, and storing the license plate number entering the parking lot currently by the fourth storage module 61; the infrared sensor 64 is used for sending an infrared detection result to the fourth control module 60 when infrared data are detected, and the fourth control module 60 commands the license plate recognition module 63 to start license plate recognition work; a paper invoice printing module 65 for printing and recording an invoice carrying detailed parking charge for the driver of the corresponding vehicle according to the command of the fourth control module 60; the electronic receipt generating module 66 generates an electronic receipt recorded with parking charge details according to the command of the fourth control module 60, and sends the electronic receipt to the NFC payment terminal 81 on the vehicle 8 to be parked through the NFC charging module 62, so as to complete the transmission of the electronic receipt, so that the driver of the vehicle can keep the electronic charge certificate of the parking lot;
the parking space execution subsystem 7 comprises a fifth control module 70, a parking space indication screen 71, a parking space indication lamp 72, a parking space entrance barrier 73, a parking space exit barrier 74, a parking space blocking device 75, a parking space outline lamp 76, a parking space image collector 77, a fifth storage module 78, a piezoelectric ceramic plate 79 and an electric accumulator 710 which are respectively connected with the fifth control module 70; the parking space indicator lamp 72 and the parking space clearance lamp 76 are respectively connected with an accumulator 710; wherein:
the parking space indication screen 71 is used for displaying the current remaining parking space condition of the parking lot and indicating the position direction of the remaining parking space, so that a vehicle driving into the parking lot can go to the remaining parking space to park according to the position prompt of the remaining parking space; the parking space indicating lamp 72 is arranged at the remaining parking space and used for reminding the current indicating lamp of the remaining parking space where the vehicle can be parked so as to clearly indicate light for a driver; a parking lot entrance barrier 73 that ascends and descends according to a command of the fifth control module 70 to allow or prohibit an alien vehicle from entering the parking lot; a parking lot exit barrier 74 that ascends and descends according to a command of the fifth control module 70 to allow or prohibit vehicles in the parking lot from exiting the parking lot; the parking space blocking device 75 blocks the vehicle to be driven out according to the command of the fifth control module 70 when the current vehicle does not pay parking fee, so that the vehicle is prevented from not paying parking fee after parking in the parking lot, and the fee evasion behavior is avoided; the parking space outline lamp 76 starts illumination after a vehicle enters the parking lot according to the outline indication command of the fifth control module 70 to indicate the boundary condition of the current parking space, so that a vehicle driver can know the boundary of the parking space, the vehicle can be parked orderly, and the vehicle can be prevented from being scratched; the parking space image collector 77 is used for shooting the parking space images of the remaining parking spaces and sending the parking space images to the fifth control module 70, so that the fifth control module 70 calculates the length and width conditions of the current remaining parking spaces and commands the parking space indication screen 71 to display the length and width conditions of the remaining parking spaces, a driver can conveniently select a proper parking space according to the length and width of the driver, and the time for the driver to search the parking space with the proper length and width is effectively reduced; the piezoelectric ceramic plate 79 is paved below each parking space, converts the pressure applied to the piezoelectric ceramic plate 79 when the vehicle passes by into electric energy, and stores the electric energy into the accumulator 710 so as to supply the illumination of each parking space indicator lamp 72 and each parking space outline lamp 76, thereby realizing green energy-saving power generation;
the vehicle to be parked 8 is provided with an NFC payment terminal 81 capable of being connected with a second bank system and a GPS positioning terminal 82 capable of being connected with the NFC parking space charging subsystem 6, and an SIM card is embedded in the NFC payment terminal 81; wherein,
the process of payment between the NFC payment terminal 81 and the NFC charging module 62 in the NFC parking space charging subsystem 6 must include the following steps:
step 1, an NFC payment terminal collects and stores identity card information of a legal owner, then collects human body magnetic field data of the legal owner in real time within a preset time period, constructs a human body magnetic field database of the legal owner within each preset time period, and takes the constructed human body magnetic field database as identity identification information of the legal owner; the preset time period comprises a first preset time period and a second preset time period, and the first preset time period is 06: 00-18: 00; the second preset time period is 18:00 to 06:00 the next day;
because the magnetic field of each human body is different, the human body magnetic field is used as the unique biological characteristic of each human body, and the human body magnetic field can be used as the human body biological characteristic information of identity recognition like finger fingerprints. The intensity of the human body magnetic field data is not constant in each time period, so in this embodiment, two time periods are preset for the human body magnetic field data, that is, the preset time period includes a first preset time period and a second preset time period, and the first preset time period is 06:00 to 18: 00; the second preset time period is 18:00 to 06:00 the next day;
step 2, the NFC payment terminal collects body odor data of a legal owner, receives fingerprint information and vein information corresponding to each finger of the legal owner, and constructs a body odor database of the legal owner of the NFC payment terminal and a fingerprint information database and a vein information database corresponding to each finger; the NFC payment terminal respectively gives a first priority for identity recognition to a human body magnetic field of a legal owner and a second priority for identity recognition to body odor data; in identifying whether the operator has a legitimate identity, the first priority has a higher identification confidence than the second priority;
the body odor of each person is different, and the body odor data of the person is the same as the biological characteristics of a magnetic field, fingerprints, a face, an iris and the like of the person and also has unique non-replicability, so the body odor data of the person can be used as the characteristic information of identity recognition; regarding the priority problem of the human body magnetic field and the body odor data during identification, for example, when the NFC payment terminal judges that the acquired human body magnetic field of the operator belongs to the magnetic field data of the legitimate owner thereof and judges that the acquired body odor data does not belong to the body odor data of the legitimate owner thereof, the NFC payment terminal judges that the operator is the legitimate owner thereof;
step 3, displaying a preset number of payment password input frames to a legal owner on a touch display screen of the NFC payment terminal, wherein each payment password input frame corresponds to seven basic color lists for optional selection; wherein, seven basic colors in the basic color list are respectively red, orange, yellow, green, cyan, blue and purple, and each payment password input box corresponds to a group of payment allowable colors; each group of payment allowable colors is any combination of the seven basic colors; for example, the NFC payment terminal displays 3 payment password input boxes on a touch display screen thereof, and the 3 payment password input boxes are respectively numbered as a 01 input box, a 02 input box, and a 03 input box; wherein:
seven basic colors of red, orange, yellow, green, cyan, blue and purple are corresponded in the 01 input box,
the 02 input box is corresponding to seven basic colors of red, orange, yellow, green, cyan, blue and purple,
seven basic colors of red, orange, yellow, green, cyan, blue and purple are correspondingly arranged in the 03 input box; the basic colors provided in the 3 payment password input boxes are the same, and a legal owner of the NFC payment terminal may select at least one basic color in the 01 input box as a group of payment permission colors corresponding to the 01 input box, for example, red alone as a group of payment permission colors, or a combination of three basic colors, namely, red, orange and yellow, as a group of payment permission colors corresponding to the 01 input box; similarly, the 02 input box and the 03 input box can be set as required to form corresponding payment permission colors; for example, the set of payment allowance colors corresponding to the 01 input box is red, red and yellow, the set of payment allowance colors corresponding to the 02 input box is orange and yellow, and the set of payment allowance colors corresponding to the 03 input box is blue and purple.
Step 4, according to the basic color list corresponding to each payment password input frame on the touch display screen, a legal owner of the NFC payment terminal sequentially selects basic color combinations with custom kinds of numbers to be respectively used as payment allowable colors of each payment password input frame, and the NFC payment terminal respectively and correspondingly stores the payment allowable colors corresponding to each payment password input frame; the legal owner of the NFC payment terminal correspondingly inputs the integral combination of the payment allowable colors in each payment password input box to form a secondary payment confirmation password of the NFC payment terminal about payment;
for example, in the 3 payment password input boxes illustrated in step 3, the secondary confirmation payment password of the NFC payment terminal is an integral combination of payment allowed colors of each group corresponding to the three input boxes, that is, the secondary confirmation payment password of the NFC payment terminal is "red, yellow; orange and yellow; blue, violet ".
In addition, as a safer payment protection method, the secondary confirmation payment password of the NFC payment terminal is an integral combination of all payment allowable colors which are sequentially and correspondingly input by a legal owner in each payment password input box according to the sequence; that is to say, the sequence of the various basic colors also has a limiting effect on the setting of the secondary confirmation payment password, even if the basic colors selected from the payment permission colors of each group are consistent, as long as the input sequence of the basic colors is not right, the authentication of the secondary confirmation payment password by the NFC payment terminal cannot be performed; for example, the second payment confirmation password set by the legal owner of the NFC payment terminal is "red, yellow; orange and yellow; blue and purple, if someone, including the legal owner of the NFC payment terminal, the input secondary confirmation payment password is red, yellow and red; orange and yellow; blue and purple, the person still can not pass the safety payment authentication of the NFC payment terminal, and the NFC payment terminal can not start the payment response, so that the payment password information of the NFC payment terminal can be effectively ensured;
because each group of payment permission colors corresponding to each payment password input box is set by the legal owner of the NFC payment terminal, and the colors in each group of payment permission colors are randomly set by the legal owner of the NFC payment terminal, the final payment permission color is only known by the legal owner of the NFC payment terminal, and other people are difficult to guess or crack to obtain the correct payment permission color, so that the safety performance of secondary payment password confirmation of the NFC payment terminal is improved, and the authentication accuracy of the NFC payment terminal on whether an operator has a legal identity or not is also enhanced;
step 5, the NFC payment terminal generates an identity authentication key representing the authentication information legally owned by the legal owner of the NFC payment terminal to the NFC payment terminal according to the identity card information of the legal owner and the payment password for the second time confirmation; the identity authentication key is marked as K, and the process of acquiring the identity authentication key K comprises the following steps 5-1 to 5-5:
step 5-1, the NFC payment terminal extracts the identity card information of the legal owner and respectively acquires the accumulated sum of all digital identity card information, the average value of the identity card information and the identity card information characteristic value in the identity card information; wherein:
x is the accumulated sum of the identity card information, Y is the average value of the identity card information, and Z is the characteristic value of the identity card information; x is the number ofiThe number is the ith number in the identity card, and m is the number of all numbers in the identity card information;
for example, the 18-bit identification card information of the third card corresponding to the legal owner of the NFC payment terminal includes 17 digits and a letter X, and then m in the information is 17; since the identity card information of each person is unique, the accumulated sum, the average value of the identity card information and the feature value of the identity card information, which are calculated in the step 4-1, are also unique, so that the obtained corresponding numerical values can be used as the feature values of identity identification, other illegal persons are prevented from forging the identity information, and the payment program of the NFC payment terminal is operated in an illegal mode;
step 5-2, obtaining a first authentication secret key value which is effective in a preset time period according to the obtained accumulated sum value and average value of the identity card information and the identity card information characteristic value; the first authentication key value is denoted by k, and the first authentication key value k is obtained by the following formula: k is a radical of3=Xt2+Yt+Z;
Wherein T is the moment when the legal owner of the NFC payment terminal inputs the secondary confirmation payment password, and T is the moment1For the starting time, T, of a predetermined time period of the authentication key K2The termination time of the preset time period of the identity authentication key K is set; the initial time and the termination time of the preset time period of the identity authentication key are set, so that the finally generated identity authentication key is limited by the preset effective time period, once the preset effective time period is exceeded, the identity authentication key is correct, and the NFC payment terminal does not recognize the legal identity of an operator, so that the safety of the secondary confirmation payment password of the NFC payment terminal is ensured again, and the operation of an NFC support by non-safe and non-legal personnel is avoidedA payment program of the payment terminal;
5-3, extracting each group of payment allowable colors corresponding to each payment password input box by the NFC payment terminal, and calculating to obtain a gray average value of each group of payment allowable colors corresponding to each payment password input box; the gray average value I (n) of a group of payment allowed colors corresponding to each payment password input box is obtained by the following formula:
wherein I (n) is the gray average value of the payment allowable color of the group corresponding to the nth payment password input box, JnThe number of basic colors corresponding to the payment allowable colors in the nth payment password input frame is represented by I (n, J) which is the gray value of the jth basic color in the nth payment password input frame, and J is more than or equal to 1 and less than or equal to Jn;
For example, the NFC payment terminal displays 3 payment password input boxes, which are numbered as a payment password input box No. 01, a payment password input box No. 02, and a payment password input box No. 03, and n is 3; the payment permission colors corresponding to the payment password input box No. 01 are red, red and yellow, the payment permission colors corresponding to the payment password input box No. 02 are orange and yellow, and the payment permission colors corresponding to the payment password input box No. 03 are blue and purple, then J1That is, the number of the basic colors corresponding to the payment allowable colors in the payment code number 01 input box is 3, and I (1,1) is the payment code number 01 inputThe gray scale value corresponding to the basic color of the first red in the frame, I (1,2) is the gray scale value corresponding to the basic color of the second red in the number 01 payment password input frame, I (1,3) is the gray scale value corresponding to the basic color of the third yellow in the number 01 payment password input frame, and the gray scale average value of a group of payment allowed colors corresponding to the number 01 payment password input frame
Correspondingly, I (2,1) is the gray scale value corresponding to the first orange basic color in the 02-number payment password input box, I (2,2) is the gray scale value corresponding to the yellow basic color in the 02-number payment password input box, and the gray scale average value of a group of payment allowed colors corresponding to the 02-number payment password input boxI (3,1) is the gray value corresponding to the first blue basic color in the No. 03 payment password input box, I (3,2) is the gray value corresponding to the purple basic color in the No. 03 payment password input box, and the gray average value of a group of payment allowed colors corresponding to the No. 03 payment password input box
Step 5-4, calculating the gray level average value I of the payment allowable colors in all the payment password input boxes according to the gray level average value of a group of payment allowable colors corresponding to each payment password input box; wherein:
n is the number of all payment password input boxes, and I (N) is the gray average value of a group of payment allowable colors corresponding to the nth payment password input box;
in combination with the description about the pay password number 01 input box, the pay password number 02 input box and the pay password number 03 input box in the step 5-3, the average value of the gray levels of the pay allowable colors in all the pay password input boxes is
Step 5-5, obtaining an identity authentication secret key which is effective in a preset time period according to the obtained first authentication secret key value k and the payment allowable color gray level average value I, and storing the identity authentication secret key into the NFC payment terminal; the identity authentication key is marked as K, and the identity authentication key K is obtained by the following formula: k3=Xt2+Yt+I,t∈[T1,T2];
T is the moment when the legal owner of the NFC payment terminal inputs the secondary confirmation payment password, T1For the start of a predetermined time period, T, of the identity authentication key2The termination time of the preset time period of the identity authentication key is set;
the identity authentication key K in the step is obtained by processing the effective time period, the identity card information of the legal owner of the NFC payment terminal and the gray level average value of the payment allowable color in all the payment password input boxes, the gray level average value of the payment allowable color is uniquely set by the legal owner of the NFC payment terminal, the finally obtained identity authentication key K is unique due to the parameters, and if an operator is not the legal owner of the NFC payment terminal, the operator is difficult to crack and obtain, so that the identity authentication of the NFC payment terminal on legal personnel is guaranteed again, and the payment safety of the NFC payment terminal is guaranteed;
step 6, the NFC payment terminal sends the real identity identification number to the certification authority, and the certification authority generates the anonymity for the NFC payment terminal transactionAn identification number; the NFC charging module sends the real identity identification number to a certification authority, and the certification authority generates an anonymous identity identification number for NFC charging module transaction; wherein, the real identity identification number of the NFC payment terminal is marked as MobileidThe certification authority is marked as TSM, and the anonymous identity identification number of the NFC payment terminal is marked as MobileaidAnd the real identity identification number of the NFC charging module is recorded as PoSidAnd the anonymous identity identification number of the NFC charging module is marked as PoSaid;Mobileaid=sH(Mobileid),PoSaid=sH(PoSid) (ii) a sH (-) is a Hash anonymity function;
step 7, a driver uses the NFC payment terminal to register a payment account of the driver in the first bank system in advance, and a parking lot manager uses the NFC charging module to register a parking lot collection account in the second bank system in advance; wherein, the payment account of the NFC payment terminal is marked as MobileacctAnd the collection account of the NFC charging module is recorded as PoSacct;
Step 8, when the NFC payment terminal is close to the NFC charging module, the NFC charging module sends transaction information comprising the amount of money to be paid, the electronic receipt single number, the anonymous identity identification number of the NFC charging module, the current position air humidity, the electronic receipt single number generation time and a secret key shared by the electronic receipt single number and an authentication mechanism to the NFC payment terminal; wherein the transaction information is marked as EPoSWherein: ePoS=E(ReceiptNum,Price,PoSaid,RHPoS,T,KPoS-TSM);ReceiptNumA receipt number generated for the NFC charging module; price is the amount of money to be paid, PoS, of the NFC payment terminalaidVirtual identity number, RH, for NFC charging modulePoSFor the air humidity of the current position of the NFC charging module, T is the generation time of the electronic receipt number, KPoS-TSMA shared key for the NFC charging module and the certification authority;
shared secret key K between POS settlement terminal and certification authorityPoS-TSMOnly the POS settlement terminal and the certification authority know, and other third parties including the NFC payment terminal and the illegal user terminal cannot knowObtain the shared secret key KPoS-TSMTherefore, the information security of the POS settlement terminal is ensured; when the POS settlement terminal is transacted with the NFC payment terminal, the NFC payment terminal can only obtain the anonymous identity identification number PoS of the POS settlement terminalaidTherefore, the POS settlement terminal can be prevented from being falsely used by other illegal third parties to try to send payment transaction information with the authentication mechanism and the NFC payment terminal, and the information safety of the POS settlement terminal is guaranteed;
step 9, the NFC charging module sends authentication information comprising the transaction information, the NFC charging module collection account and a shared secret key between the NFC charging module collection account and the authentication mechanism in the step 7 to the authentication mechanism, and the NFC payment terminal sends payment authentication information to the authentication mechanism; the payment authentication information sent by the NFC payment terminal comprises a temporary identification code TMSI thereof and a shared secret key K between the temporary identification code TMSI and an authentication mechanismMobile-TSMIts location area identification code LAI, its current location air humidity RHMobileNFC payment terminal payment account MobileacctAnd the transaction information sent by the NFC charging module; the payment authentication information sent by the NFC payment terminal is recorded as EMobile;
EMobile=E(ReceiptNum,Price,PoSaid,Mobileaid,RHPoS,RHMobile,T,TMSI,LAI,KMobile-TSM);
Step 10, the certification authority extracts the anonymous identity identification number of the NFC charging module in the information sent by the NFC charging module, and carries out matching judgment based on the real identity identification number of the NFC charging module stored in the certification authority:
when the authentication mechanism utilizes the real identity identification number of the NFC charging module and the anonymous identity identification number of the NFC charging module generated by the Hash anonymous function to be matched with the extracted anonymous identity identification number of the NFC charging module, the authentication mechanism shows that the NFC charging module which sends the authentication information is credible, and then the authentication mechanism executes the step 11; otherwise, the authentication mechanism cuts off the communication between the authentication information and the NFC charging module corresponding to the authentication information so as to ensure the information security of one end of the authentication mechanism, and sends warning information containing the anonymous identity identification number of the NFC charging module to the NFC payment terminal;
step 11, the authentication mechanism extracts the temporary identification code and the location area identification code in the payment authentication information of the NFC payment terminal and sends feedback authentication information comprising the temporary identification code of the NFC payment terminal, the location area identification code and a shared secret key between the temporary identification code of the NFC payment terminal and the location area identification code and a mobile operator to the mobile operator; wherein, the feedback authentication information is recorded as EMNO,EMNO=E(TMSI,LAI,KTSM-MNO);KTSM-MNORepresenting a shared key between the certification authority and the mobile operator;
step 12, the mobile operator extracts the temporary identification code of the NFC payment terminal and the identification code of the position area in the feedback authentication information by using a shared secret key between the mobile operator and the authentication mechanism, retrieves the mobile user identification code corresponding to the temporary identification code according to the temporary identification code of the NFC payment terminal, and then sends the authenticated information comprising the temporary identification code of the NFC payment terminal, the identification code of the position area and the identification code of the mobile user to the authentication mechanism;
step 13, the authentication mechanism extracts the air humidity of the current position of the NFC charging module contained in the authentication information and the air humidity of the current position of the NFC payment terminal contained in the payment authentication information, and when the difference between the air humidity of the current position of the NFC charging module and the air humidity of the current position of the NFC payment terminal is judged to be lower than a preset air humidity difference threshold value, the authentication mechanism sends payment confirmation command information to the first bank system; the payment confirmation command information comprises the amount to be deducted, a receipt number, receipt number generation time, an NFC payment terminal payment account, an NFC charging module collection account and a shared secret key between the authentication mechanism and the first bank system; confirming payment command information is recorded as EConfirmWherein: eConfirm=(Amtdedt,ReceiptNum,T,Mobileacct,PoSacct,);
Wherein, AmtdedtPaying the amount of money to be deducted from the account for the NFC payment terminal,the first BANK system is marked as BANK for sharing secret key between the certification authority and the first BANK system1(ii) a The POS settlement terminal comprises a POS settlement terminal body, a NFC interface, a NFC payment terminal, a POS settlement terminal and a NFC interface, wherein the POS settlement terminal body is provided with a plurality of POS payment terminals, the POS payment terminals are arranged in the NFC interface, the POS settlement terminal body is provided with a plurality of POS payment terminals, the POS settlement terminal body is provided with a;
step 14, the first bank system deducts the corresponding amount in the payment account of the NFC payment terminal according to the payment confirmation command information sent by the authentication mechanism and the corresponding amount to be deducted, and transfers the amount deducted in the payment account of the NFC payment terminal to the NFC charging module in the parking lot collection account of the second bank system, and after the operation is completed, the first bank system sends the information of the deduction receipt including the amount of the deduction, the deduction time, the bank authorized deduction number, the deduction account, the collection account, and the shared secret key to the NFC payment terminal, and goes to step 14 to perform the secondary payment confirmation operation;
step 15, the NFC payment terminal collects the magnetic field intensity, body odor data, finger vein information and time value of the person holding the NFC payment terminal, and identifies the identity of the person holding the NFC payment terminal:
when the NFC payment terminal judges that the collected human body magnetic field intensity exists in a human body magnetic field intensity database which is stored in the NFC payment terminal and corresponds to the time within a preset time period, and the collected body odor data are also stored in the body odor database which is stored in the NFC payment terminal, the fact that the holding person is a legal owner of the NFC payment terminal is indicated, and then the NFC payment terminal executes the step 16; otherwise, the NFC payment terminal refuses any operation of the holding personnel on the NFC payment terminal within a preset time period;
step 16, the NFC payment terminal displays the payment password input frames and the basic color lists corresponding to the payment password frames on the touch display screen of the NFC payment terminal, and after the holding personnel sequentially inputs the payment permission groups, the NFC payment terminal determines according to the payment permission colors in the payment password input frames input by the holding personnel:
when the payment permission color in each payment password input box is completely consistent with the payment permission color which is correspondingly stored in the step 4 of the NFC payment terminal, the NFC payment terminal executes the step 17 if the correct secondary confirmation payment password is input; otherwise, the NFC payment terminal refuses any operation of the holding person on the NFC payment terminal within a preset time period if the input of the wrong secondary confirmation payment password is indicated;
step 17, the NFC payment terminal requests the holding personnel to input the identification card information of the holding personnel, and generates a corresponding identification authentication key K 'based on the identification card information of the holding personnel, and when the NFC payment terminal determines that the generated identification authentication key K' is consistent with the stored identification authentication key K, the NFC payment terminal sends a transfer confirmation command to the first bank system; otherwise, the NFC payment terminal refuses any operation of the holding personnel on the NFC payment terminal within a preset time period;
step 18, after the first banking system receives the payment command sent by the NFC payment terminal, the first banking system transfers the money corresponding to the step 14 to the collection account of the NFC charging module, and after the second banking system receives the money transferred by the first banking system, sends Amt money including the collection amountdedtBANK authorized collection order number BANKTransAnd collection account PoSacctAnd the time of collection T1The information of the receipt is sent to the NFC charging module; receipt information label EReceiptWherein E isReceipt=E(Amtdedt,BANKTrans,PoSacct,T1)。