CN105653839A - Near field communication mobile medical service system - Google Patents

Abstract

The invention relates to a near field communication mobile medical service system. The near field communication mobile medical service system comprises a mobile intelligent terminal, a medical service subsystem, a certification mechanism, a third party payment platform and a back account management platform, wherein the certification mechanism is connected with each of the mobile intelligent terminal and the medical service subsystem; the mobile intelligent terminal is connected with the third party payment platform; the medical service subsystem is connected with the bank account management platform; and the third party payment platform is connected with the bank account management platform. When needing to seek medical advices on the spot through the medical service subsystem, the patients can register at a relatively long distance by utilizing the mobile intelligent terminal, so that the time, for queuing to register, of the traditional medical service subsystem is shortened; when needing to pay the medical cost, the patients can realize the near field communication payment of the mobile intelligent terminal and a medical charging terminal in the medical service subsystem by utilizing an optimum NFC relay, both the mobile intelligent terminal and the medical charging terminal interact data by utilizing anonymous identity numbers generated by the certification mechanism, so that the security of the payment information in the payment process is ensured; and moreover, the patient can realize remote medical service by utilizing the mobile intelligent terminal.

Description

Near field communication mobile medical service system

Technical Field

The invention relates to the field of mobile medical treatment, in particular to a near field communication mobile medical service system.

Background

In the current medical field, the problem of difficulty in seeing a doctor still becomes a key problem which troubles the development of the traditional medical treatment. The problem of difficult medical observation is essentially a contradiction between limited medical resources and a large number of patient backlogs. For example, when a patient goes to a hospital for a doctor, the patient needs to arrange a longer queue to register and queue to pay the doctor cost, if the patient is short, the patient needs to queue for several minutes, and if the patient is long, the patient needs to queue for half a day or the whole day to complete the minimum registration problem; meanwhile, in the process of paying the treatment fee, the problem of payment information leakage exists, so that the time of the patient is seriously wasted, the safety of both parties of payment transaction is damaged, and the efficiency of medical service is greatly reduced.

Near Field Communication (NFC) technology is short-range high-frequency radio technology, is evolved by fusing non-contact radio frequency identification technology and point-to-point communication technology, works at 13.56MHz within a distance of 0-20 cm, has three transmission speeds of 106 Kbit/s, 212 Kbit/s or 424 Kbit/s, and can automatically switch between different transmission speeds. The NFC technology supports point-to-point data transmission between two terminals with NFC functions so as to complete the near field communication interaction process. The NFC technology supports point-to-point data transmission between two terminals with NFC functions so as to complete the near field communication interaction process. With the development of the NFC technology and the increasing popularity of mobile intelligent terminals, a medical service system based on near field communication becomes possible.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a near field communication mobile medical service system which can reduce the queuing and registration time of patients and improve the payment efficiency when the patients go to the clinic, and can remotely diagnose the disease conditions of the patients.

The technical scheme adopted by the invention for solving the technical problems is as follows: the near field communication mobile medical service system is characterized by comprising a mobile intelligent terminal, a medical service subsystem, a visa mechanism, a third party payment platform and a bank account management platform, wherein the visa mechanism is respectively connected with the mobile intelligent terminal and the medical service subsystem; wherein:

the mobile intelligent terminal comprises a microprocessor, a second-generation identity card scanner, a fingerprint collector, an encryption module, a video collector, an audio collector, a pulse sensor, a heart rate sensor, a blood glucose collector, a grip strength detector, a memory, a first LTE communication module, a first Bluetooth module, a first NFC module and a first spectrum sensing module capable of detecting idle frequency bands, wherein the second-generation identity card scanner, the fingerprint collector, the encryption module, the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood glucose collector, the; the second-generation identity card scanner and the fingerprint collector are respectively connected with an encryption module, and the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood sugar collector and the grip strength detector are respectively connected with a memory; the memory is respectively connected with the first LTE communication module, the first Bluetooth module and the first NFC module; the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood sugar collector and the grip strength detector are respectively connected with the first LTE communication module; the first LTE communication module is connected with a first spectrum sensing module; wherein:

the second-generation ID card scanner is used for acquiring the ID card information of the patient, encrypting the ID card information by the encryption module and storing the encrypted ID card information in the memory;

the fingerprint collector is used for collecting fingerprint information of a legal owner of the mobile intelligent terminal so as to confirm that the mobile intelligent terminal completes the payment transaction process by utilizing the first NFC module;

the video collector and the audio collector are respectively used for correspondingly obtaining video and audio information of a patient, and transmitting the video and audio information to the medical service subsystem by using the first LTE communication module while storing the video and audio information in the memory;

the medical service subsystem comprises a central processing unit, a medical information database, a medical record registration module, a touch display screen, a noise filter, an audio processor, a vibrator, a second spectrum sensing module, a second LTE communication module, a second Bluetooth module, a medical charging terminal with a second NFC module, N (N is more than or equal to 3) NFC relay modules and a doctor hanging diagnosis display, wherein the medical information database, the medical record registration module, the touch display screen, the noise filter, the audio processor, the vibrator, the second spectrum sensing module, the second LTE communication module, the second Bluetooth module and the medical charging; the touch display screen and the noise filter are respectively connected with a second LTE communication module, and the second LTE communication module is connected with a second spectrum sensing module; the second Bluetooth module and the second NFC module are respectively connected with the medical record registration module; the medical record registration module is connected with the medical information database; the medical information database is connected with a doctor on-hook display; the audio processor is connected with the vibrator; the N (N is more than or equal to 3) NFC relay modules are respectively connected with the second NFC module; wherein:

the medical record registration module is used for realizing that the mobile intelligent terminal is connected with the first Bluetooth module and the second Bluetooth module after being paired and communicated, and sending the identity card information of the registered patient to the medical information database for storage after registration;

the medical information database is used for sending the patient information to the doctor on-hook display according to the patient registration information and the registration sequence;

the doctor on-line display is used for displaying registered patient information so that a doctor can know the registered patient information;

the touch display screen is used for displaying the received remote video of the patient so that a doctor can master the basic disease condition of the patient according to the remote video;

the noise filter is used for filtering noise in the received pulse audio of the patient and sending the obtained pure pulse audio to the audio processor for processing;

the audio processor is used for amplifying the received pure pulse audio and extracting the frequency and amplitude of the amplified pulse audio to the central processor;

the second spectrum sensing module is used for detecting a communication frequency band in an idle state around the medical service subsystem and sending an idle communication frequency band value to the central processing unit;

on one hand, after receiving the pulse audio amplitude sent by the audio processor, the central processor commands the vibrator to vibrate according to a certain frequency and amplitude to reconstruct the pulse of the patient, so that a doctor can master the real pulse condition of the patient at a far end; on one hand, according to the received idle communication frequency band value, a second LTE communication module is instructed to switch to the idle communication frequency band for communication; on the other hand, acquiring an NFC relay module with optimal relay performance as an optimal NFC relay module;

the second Bluetooth module is used for being connected with the first Bluetooth module in a matching mode, so that the patient can complete registration in time within a Bluetooth communication distance by using the mobile intelligent terminal;

the medical charging terminal is used for completing the near field communication payment transaction process of the mobile intelligent terminal and the medical charging terminal through the relay forwarding of the optimal NFC relay module; the process of realizing the near field communication payment transaction by the mobile intelligent terminal and the medical charging terminal sequentially comprises the following steps:

(1) the mobile intelligent terminal takes the global identity identification number of the first NFC module as the real identity identification number of the mobile intelligent terminal, registers and stores the real identity identification number, a payment special account, an account payment password and a secret-carrying image extraction secret key of the mobile intelligent terminal on a third-party payment platform, sends the real identity identification number of the mobile intelligent terminal to a visa mechanism for storage, generates an anonymous identity identification number set corresponding to the mobile intelligent terminal and a shared secret key set between the visa mechanism and the mobile intelligent terminal by the visa mechanism, and records the generation time of each shared secret key in the shared secret key set by the visa mechanism; wherein,

real identity identification number mark of mobile intelligent terminal is ID_MobileAnd the anonymous identity identification number set of the mobile intelligent terminal is marked as I₁The signature organization is marked as TSM, and the real identity identification number of the TSM is marked as ID_TSMThe shared secret key set of the visa organization and the mobile intelligent terminal is marked as S₁Sharing a secret Key SKⁱ _Mobile-TSMIs recorded as K_i(ii) a Wherein:

$I_1=\{{\mathrm{ID}}_{1^{Mobile}}^{\′},{\mathrm{ID}}_{2^{Mobile}}^{\′},...,{\mathrm{ID}}_{m^{Mobile}}^{\′}\},$

S₁＝{SK¹ _Mobile-TSM,SK² _Mobile-TSM,…,SK^m _Mobile-TSM}；

ith (i ═ 1,2, …, m) anonymous identity identification number of mobile intelligent terminalIth shared secret key SK between the mobile intelligent terminal and the visa organizationⁱ _Mobile-TSMIn a one-to-one correspondence relationship;

(2) the medical charging terminal takes the global identity identification number of the second NFC module as the real identity identification number of the medical charging terminal, a collection account is registered on the bank account management platform, and the real identity identification number of the medical charging terminal is stored by the bank account management platform; the medical charging terminal sends the real identity identification number to a visa mechanism TSM for storage, and an anonymous identity identification number set of the medical charging terminal and a shared secret key set of the visa mechanism and the medical charging terminal are generated and stored by the visa mechanism TSM;

wherein the real ID number of the medical charging terminal is marked as ID_MedicalThe anonymous ID number set of the medical charging terminal is marked as I₂The shared secret key set of the visa organization and the medical charging terminal is marked as S₂(ii) a Wherein:

$I_2=\{{\mathrm{ID}}_{1^{Medical}}^{\′},{\mathrm{ID}}_{2^{Medical}}^{\′},...,{\mathrm{ID}}_{m^{Medical}}^{\′}\},$

S₂＝{SK¹ _Medical-TSM,SK² _Medical-TSM,…,SK^m _Medical-TSM}；

i (i ═ 1,2, …, m) th anonymous identity number of medical service subsystemThe ith shared secret key SK between the visa organization and the medical service subsystemⁱ _Medical-TSMIn a one-to-one correspondence relationship;

(3) the mobile intelligent terminal sends an authentication request to a visa mechanism, the visa mechanism sends an anonymous identity set of the mobile intelligent terminal and a corresponding shared secret key set to the mobile intelligent terminal, and the sending time of the authentication request is stored; time T for sending visa request information by mobile intelligent terminal₁；

(4) When the mobile intelligent terminal is close to the medical charging terminal and the distance between the mobile intelligent terminal and the medical charging terminal is greater than the near field communication distance, the mobile intelligent terminal sends near field communication request information to the medical charging terminal;

the near field communication request information comprises a mobile intelligent terminalFirst shared secret key SK between terminal generated and medical charging terminal¹ _{Mobile-Medical}The first visa random numbers c (c ∈ (0,9) and c ∈ Z) generated by the mobile intelligent terminal, and the time T when the mobile intelligent terminal sends visa request information₁The first anonymous identity identification number of the mobile intelligent terminalFirst shared secret key SK between mobile intelligent terminal and visa mechanism TSM¹ _Mobile-TSM(ii) a Wherein the near field communication request information mark is

(5) After receiving the near field communication request information sent by the mobile intelligent terminal, the medical charging terminal sends a first anonymous identity identification number including the medical charging terminalFirst shared secret key SK between medical charging terminal and visa institution¹ _Medical-TSMThe received permission authentication request information of the near field communication request information of the mobile intelligent terminal is authenticated by the visa mechanism TSM; wherein, the license authentication request information is marked as follows:

$S_{M-T}(\mathrm{Re}quest,{\mathrm{ID}}_{1^{Mobile}}^{\′},{\mathrm{ID}}_{1^{Medical}}^{\′},c,T_1,{{\mathrm{SK}}^1}_{Mobile-Medical},{{\mathrm{SK}}^1}_{Medical-TSM});$

(6) the visa mechanism extracts and judges information according to the received permission authentication request information sent by the medical charging terminal, and the mobile intelligent terminal identity of the authentication request and the medical charging terminal in near field communication is as follows:

when the mobile intelligent terminal anonymous identity identification number extracted by the visa authority in the license authentication request information, the shared secret key between the mobile intelligent terminal and the visa authority and the generation time of the shared secret key are all the same as the mobile intelligent terminal anonymous identity identification number set I stored by the visa authority₁Sharing a key set S₁Sharing the key generation time K₁If the correspondence is consistent, the visa mechanism sends the permission near field communication information to the medical charging terminal; otherwise, send outSending the information of refusing the near field communication to the medical charging terminal; wherein,

the licensed near field communication information sent by the visa mechanism comprises a first shared secret key SK between the mobile intelligent terminal and the visa mechanism¹ _Mobile-TSMThe shared key SK¹ _Mobile-TSMGeneration time K of₁And the time T for sending the authentication request information by the mobile intelligent terminal₁The first shared secret key SK between the visa mechanism and the mobile intelligent terminal¹ _Mobile-TSM(ii) a Wherein:

licensed near field communication information tag S_T-M(Accept,T₁,K₁,SK¹ _Mobile-TSM,SK¹ _Medical-TSM)；

Rejection of near field communication information tag S_T-M(Reject,SK¹ _Medical-TSM)；

(7) The medical charging terminal feeds back the near field communication request information sent by the mobile intelligent terminal according to the received permission near field communication information or rejection near field communication information of the visa mechanism:

when the medical charging terminal receives the permission near field communication information of the visa mechanism, the medical charging terminal receives the near field communication request sent by the mobile intelligent terminal and sends the acceptance near field communication information including a second visa random number d (d belongs to [0,9] and d is not equal to c, d belongs to Z) generated by the medical charging terminal to the mobile intelligent terminal;

when the medical charging terminal receives the near field communication rejection information of the visa organization, the medical charging terminal rejects the near field communication request sent by the NFC mobile wallet and sends the near field communication rejection information to the mobile intelligent terminal;

(8) the mobile intelligent terminal receives the information sent by the medical charging terminal, and makes judgment and operation according to the received information:

when the received information is near field communication receiving information, the mobile intelligent terminal extracts near field communication receivingGenerating time value of shared secret key between mobile intelligent terminal and visa mechanism contained in information, and judging the extracted generating time value of the shared secret key and the generating time value K of the shared secret key stored in the mobile intelligent terminal₁When the mobile intelligent terminal is consistent with the mobile intelligent terminal, the mobile intelligent terminal generates a virtual keyboard comprising letters and numbers in a mixed mode, a payment password in the form of letters and numbers is input through the virtual keyboard, the payment password is embedded into a preset image, the secret-carrying image embedded with the payment password is sent to a third-party payment platform, and meanwhile, the mobile intelligent terminal sends the first anonymous identity identification number of the mobile intelligent terminal which is respectively invalidatedAnd the mobile intelligent terminal and the first shared secret key SK of the visa organization¹ _Mobile-TSMTo a visa authority; otherwise, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal;

and when the received information is the information rejecting the near field communication, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal, and the payment process of the mobile intelligent terminal to the medical charging terminal is stopped.

Further, in the step (8), the process of embedding the payment password into the preset image by the mobile intelligent terminal includes the following steps (a) to (e):

(a) according to the preset number M, the mobile intelligent terminal selects M external static images stored or obtained by the mobile intelligent terminal, the selected M static images are respectively numbered and then subjected to noise elimination, and the number is t₀The static image of (2) is embedded with a mark; wherein the still image after each number is denoted as C_l1,2, …, M, the still image with embedded markers is C_t0'，t₀Is one preset fixed numerical value in the numbers 1 to M;

(b) converting the payment password into binary bit streams, and grouping the obtained binary bit streams by taking 8 bits as a group to obtain N groups of binary bit streams; wherein,each binary bit stream has 2⁸A combination scheme is adopted;

(c) according to each combination scheme in each group of binary bit streams, selecting the inverse bit position corresponding to each combination scheme, and performing inverse position processing on the inverse bit position to generate 2⁸Group inverted binary bit streams;

(d) will 2⁸Group-inverted binary bit streams are embedded into a still image C having embedded marks by a minimum histogram distortion method, respectively_t0' in (1), obtaining a secret-carrying image C_gh' (g 1,2, …, N, h 1,2, …,256), and a secret image C is calculated_gh' with static image C_t0' matching value ξ_ghJudging the secret-carrying image C_gh' with static image C_t0' matching value ξ_ghWhether the preset best match value ξ is reached_opt：

When the matching value ξ_ghAnd preset best matching value ξ_optAbsolute difference of (2)_ghLess than or equal to a predetermined absolute difference value Δ, i.e. d_ghWhen £ Δ, indicates the secret-carrying image C_gh' with static image C_t0' achieving best match value ξ_opt(ii) a Otherwise, it represents the secret image C_gh' with static image C_t0' not reaching the best match value ξ_optWherein the matching value is ξ_ghAbsolute difference value_ghThe calculation formula of (a) is as follows:

_gh＝|ξ_gh-ξ_opt|，ξ_gh＝h_mod,gh·D_gh(PPQ)；

$h_{nod,gh}=\underset{n=0}{\overset{255}{\Σ}}|{\mathrm{hs}}_{gh}\left(n\right)-hc\left(n\right)|,D_{ij}\left(PPQ\right)=\underset{n=0}{\overset{255}{\Σ}}{\[\ln p\left(n\right)-q_{ij}\left(n\right)\]}^{p\left(n\right)};$

wherein h is_mod,ghRepresenting a static image C corresponding to the h-th set of inverted binary bitstreams_t0' amount of change of histogram before and after embedding payment code, C_gh' represents the g-th secret image in the h-th group of inverted binary bit streams; h (n) represents a still image C_t0' histogram at gray value n, hs_gh(n) denotes a secret image C in the h-th set of inverted binary bit streams_gh' histogram at gray value n; d_gh(PPQ) represents the static image C in the h-th set of inverted binary bitstreams_t0' and secret-carrying image C_gh' the correlation coefficient, p (n), represents a still image C_t' probability at a gray value of n, q_gh(n) Representing secret-carrying image C_gh' probability at a gray value of n;

(e) if carrying the secret image C_gh' with static image C_t0' not reaching the preset best match value ξ_optThen, the step (d) is returned to select the next combination scheme for the loop judgment until the judgment reaches the preset best matching value ξ_optUntil packet replacement scheme of (1);

if the h-th group inverts 2 of the binary bit stream⁸The best matching value ξ is not reached in any of the combination schemes_optTraversing the remaining N-1 sets of binary bit streams, and performing step (a) again until the preset optimal matching value x is reached_optUntil packet replacement scheme of (1); wherein a preset optimum matching value x is reached_optThe secret-carrying image corresponding to the time is marked as C_xy'，x＝1,2,…,N，y＝1,2,…,256。

Compared with the prior art, the invention has the advantages that: when a patient enters the medical service subsystem for a doctor, the patient is communicated with the medical service subsystem through the Bluetooth of the mobile intelligent terminal, so that the mobile intelligent terminal is registered at a position far away from the medical record registration module, and registration information of the patient is stored in a medical information database of the medical service subsystem; the doctor on-line display displays the patient registration information in the medical information database by calling, so that a doctor can know the basic registration information of the patient to be treated, the queuing and registration time of the traditional medical service system is reduced, and the treatment efficiency is improved; when the patient needs to pay for the medical fee, the near field communication between the mobile intelligent terminal and the medical fee charging terminal is realized by utilizing the optimal NFC relay, so that the patient can complete fee payment at a longer distance without consuming too much time to queue for payment; in the process of establishing payment transaction between the mobile intelligent terminal and the medical charging terminal, the mobile intelligent terminal and the medical charging terminal utilize anonymous identity identification number interaction data generated by a visa mechanism, so that the safety of the payment process is further ensured. In addition, when the patient needs to see a doctor remotely, the mobile intelligent terminal is used for collecting video information, audio information, pulse information, heart rate information, blood sugar information and grip strength information of the patient, the video information, the audio information, the pulse information, the heart rate information, the blood sugar information and the grip strength information are transmitted to the medical service subsystem through the first LTE communication module in an idle frequency band, the video condition of the patient is displayed through the touch display screen, meanwhile, the medical service subsystem reconstructs the pulse according to the received and extracted audio parameters of the patient, the true condition of the pulse of the patient is reproduced to a doctor, and therefore the doctor can diagnose the symptoms of the patient remotely and accurately.

Drawings

FIG. 1 is a schematic structural diagram of a mobile medical service system with near field communication according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a process of implementing a near field communication payment transaction between a mobile intelligent terminal and a medical charging terminal in the system shown in fig. 1.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1, the near field communication mobile medical service system in this embodiment includes a mobile intelligent terminal 1, a medical service subsystem 2, a visa mechanism 3, a third party payment platform 4 and a bank account management platform 5, where the visa mechanism 3 is respectively connected to the mobile intelligent terminal 1 and the medical service subsystem 2, the mobile intelligent terminal 1 is connected to the third party payment platform 4, the medical service subsystem 2 is connected to the bank account management platform 5, and the third party payment platform 4 is connected to the bank account management platform 5. In the near field communication mobile medical service system, the arrangement structure of the mobile intelligent terminal 1 and the medical service subsystem 2 is described as follows:

about mobile intelligent terminal

The mobile intelligent terminal 1 comprises a microprocessor 100, a second-generation identity card scanner 101, a fingerprint collector 102, an encryption module 103, a video collector 104, an audio collector 105, a pulse sensor 106, a heart rate sensor 107, a blood sugar collector 108, a grip strength detector 109, a memory 110, a first LTE communication module 111, a first Bluetooth module 112, a first NFC module 113 and a first spectrum sensing module 114 capable of detecting idle frequency bands, wherein the second-generation identity card scanner 101, the fingerprint collector 102, the encryption module 103, the video collector 104, the audio collector 105, the pulse sensor 106, the heart rate sensor 107; wherein:

the second-generation identity card scanner 101 and the fingerprint collector 102 are respectively connected with the encryption module 103, and the video collector 104, the audio collector 105, the pulse sensor 106, the heart rate sensor 107, the blood sugar collector 108 and the grip strength detector 109 are respectively connected with the memory 110; the memory 110 is respectively connected with the first LTE communication module 111, the first bluetooth module 112 and the first NFC module 113; the video collector 104, the audio collector 105, the pulse sensor 106, the heart rate sensor 107, the blood sugar collector 108 and the grip strength detector 109 are respectively connected with a first LTE communication module 111; the first LTE communication module 111 is connected to the first spectrum sensing module 114; wherein:

the second-generation ID card scanner 101 is used for acquiring the ID card information of the patient, encrypting the ID card information by the encryption module 103 and storing the encrypted ID card information in the memory 110; meanwhile, the patient can send the identity card information stored in the memory 110 to the medical service subsystem 2 through the mobile intelligent terminal 1 for registration of the patient;

the fingerprint collector 102 is used for collecting fingerprint information of a legal owner of the mobile intelligent terminal 1 so as to confirm that the mobile intelligent terminal completes the payment transaction process by utilizing the first NFC module 113; when the mobile intelligent terminal 1 is used for payment, the payment is confirmed through fingerprint acquisition to serve as an approval certificate for payment transaction;

the video collector 104 and the audio collector 105 are respectively used for correspondingly obtaining video and audio information of a patient, and transmitting the video and audio information to the medical service subsystem 2 by using the first LTE communication module 111 while storing the video and audio information in the memory 110; for example, when the patient is far from the medical service subsystem 2 and the patient is inconvenient to see a doctor, the video collector 104 can collect video images of the patient, the audio collector 105 can collect audio information of the patient, the first LTE communication module 111 of the mobile intelligent terminal 1 is used for transmitting the audio information to the medical service subsystem 2, and then the medical service subsystem 2 displays the video and audio data of the far end of the patient on the touch display screen 203, so that the doctor can see the doctor remotely at a distance from the patient.

The pulse sensor 106, the heart rate sensor 107, the blood glucose collector 108 and the grip strength detector 109 respectively correspond to the pulse, the heart rate, the blood glucose and the grip strength of the patient, and the collected patient data may be stored in the memory 110, or the first LTE communication module 111 may be used to transmit the patient data to the medical service subsystem 2.

(II) medical service subsystem

The medical service subsystem 2 comprises a central processing unit 200, a medical information database 201, a medical record registration module 202, a touch display screen 203, a noise filter 204, an audio processor 205, a vibrator 206, a second spectrum sensing module 207, a second LTE communication module 208, a second Bluetooth module 209, a medical charging terminal 211 with a second NFC module 210, N (N is more than or equal to 3) NFC relay modules 212 and a doctor on-line display 213, wherein the medical information database 201, the medical record registration module 202, the touch display screen 203, the noise filter 204, the audio processor 205, the vibrator 206, the second spectrum sensing module 207, the second LTE communication module 208; wherein:

the touch display screen 203 and the noise filter 204 are respectively connected with the second LTE communication module 208; the second Bluetooth module 209 and the second NFC module 210 are respectively connected with the medical record registration module 202; the medical record registration module 202 is connected with the medical information database 201; the medical information database 201 is connected with a doctor on-hook display 213; the audio processor 205 is connected with a vibrator 206; the N (N is greater than or equal to 3) NFC relay modules 212 are respectively connected to the second NFC module 210; wherein:

the medical record registration module 202 is used for realizing pairing communication connection with the mobile intelligent terminal 1 through the first Bluetooth module 112 and the second Bluetooth module 209 and sending the identity card information of the registered patient to the medical information database 201 for storage;

a medical information database 201 for sending the patient information to the doctor on-hook display 213 according to the patient registration information and the registration sequence;

a doctor on-hook display 213 for displaying the information of the registered patient for the doctor to know the information of the registered patient;

the touch display screen 203 is used for displaying the received remote video of the patient so that a doctor can master the basic disease condition of the patient according to the remote video;

a noise filter 204 for filtering noise in the received pulse audio of the patient and sending the obtained pure pulse audio to the audio processor 205 for processing; for example, after the medical service subsystem 2 receives the pulse audio information of the patient sent by the mobile intelligent terminal 1, since the pulse audio information is a wave, the noise in the pulse audio containing noise is removed by the noise filter 204, so as to obtain a relatively pure pulse audio required by the doctor for diagnosis, thereby improving the accurate diagnosis of the doctor on the disease of the patient.

An audio processor 205 for amplifying the received pure pulse audio and extracting the frequency and amplitude of the amplified pulse audio to the central processor 200; according to the frequency and amplitude of the extracted pulse audio, the actual pulse audio condition of the remote patient can be reconstructed, so that a doctor can more accurately and remotely master the actual pulse condition of the patient;

the second spectrum sensing module 207 is configured to detect a communication frequency band in an idle state around the medical service subsystem 2, and send an idle communication frequency band value to the central processing unit 200; by detecting the surrounding idle communication frequency bands through the second spectrum sensing module 207, the idle communication frequency bands can be effectively utilized, and the efficiency of data transmission between the medical service subsystem 2 and the mobile intelligent terminal 1 is improved;

on one hand, after receiving the pulse audio amplitude sent by the audio processor 205, the central processor 200 commands the vibrator 202 to vibrate according to a certain frequency and amplitude to reconstruct the pulse of the patient, so that a doctor can master the real pulse condition of the patient at a remote end; on one hand, according to the received idle communication frequency band value, the second LTE communication module 208 is instructed to switch to the idle communication frequency band for communication; on the other hand, acquiring an NFC relay module with optimal relay performance as an optimal NFC relay module;

the second Bluetooth module 209 is used for being connected with the first Bluetooth module 112 in a matching manner, so that the patient can complete registration in time within a Bluetooth communication distance by using the mobile intelligent terminal 1; for example, when a large number of patients are queued for registration, the patients can complete registration at a distance far from the medical record registration module 202, for example, within 10 m of bluetooth communication, by using the mobile intelligent terminal 1 in the hand, and the patients do not need to consume a large amount of time to queue, so that the working efficiency of the whole medical service system is improved;

the medical charging terminal 211 is used for completing the near field communication payment transaction process of the mobile intelligent terminal 1 and the medical charging terminal 211 through the relay forwarding of the optimal NFC relay module;

in the on-site diagnosis process, when a patient needs to pay medical fees, the conventional medical service system needs payment personnel to queue and pay fees one by one, so that the payment efficiency is low. Through setting up a plurality of NFC relay modules between medical charging terminal 211 and mobile intelligent terminal 1 to after selecting best NFC relay module, even mobile intelligent terminal 1 is far away from medical charging terminal 211, also can relay the mutual information of mobile intelligent terminal 1, medical charging terminal 211 through best NFC relay module and forward to long-range, swift completion payment transaction process. The process of realizing the near field communication payment transaction by the mobile intelligent terminal 1 and the medical charging terminal 211 sequentially comprises the following steps 1 to 8:

step 1, the mobile intelligent terminal takes a global identity identification number of a first NFC module as a real identity identification number, registers and stores the real identity identification number, a payment special account, an account payment password and a secret-carrying image of the mobile intelligent terminal in a third-party payment platform to extract a secret key, sends the real identity identification number of the mobile intelligent terminal to a visa mechanism for storage, generates an anonymous identity identification number set corresponding to the mobile intelligent terminal and a shared secret key set between the visa mechanism and the mobile intelligent terminal by the visa mechanism, and records the generation time of each shared secret key in the shared secret key set by the visa mechanism; wherein:

real identity identification number mark of mobile intelligent terminal is ID_MobileAnd the anonymous identity identification number set of the mobile intelligent terminal is marked as I₁The signature organization is marked as TSM, and the real identity identification number of the TSM is marked as ID_TSMThe shared secret key set of the visa organization and the mobile intelligent terminal is marked as S₁(ii) a Shared secret key SKⁱ _Mobile-TSMIs recorded as K_iWherein:

$I_1=\{{\mathrm{ID}}_{1^{Mobile}}^{\′},{\mathrm{ID}}_{2^{Mobile}}^{\′},...,{\mathrm{ID}}_{m^{Mobile}}^{\′}\},$

S₁＝{SK¹ _Mobile-TSM,SK² _Mobile-TSM,…,SK^m _Mobile-TSM}；

the mobile intelligent terminal has the i (i ═ 1,2, …,m) anonymous identification numbersIth shared secret key SK between the mobile intelligent terminal and the visa organizationⁱ _Mobile-TSMIn a one-to-one correspondence relationship; shared secret key SK¹ _Mobile-TSMIs recorded as K₁Sharing a secret Key SK^m _Mobile-TSMIs recorded as K_m；

For example, anonymous identity number set I for mobile intelligent terminal₁In (2) an anonymous identity numberTheThe method comprises the steps that a first anonymous identity identification number of a mobile intelligent terminal generated by a visa mechanism TSM is represented; when the mobile intelligent terminal and another terminal carry out near field communication and the mobile intelligent terminal requests the visa mechanism TSM to use the anonymous identification number, the visa mechanism TSM firstly uses the first anonymous identification numberSending the data to a mobile intelligent terminal for use; if the mobile intelligent terminal requests to use the anonymous identity identification number again, the first anonymous identity identification numberIs no longer utilized, the visa organization TSM will assemble I the anonymous ID number₁Second anonymous identification number ofSending the data to a mobile intelligent terminal for use; by analogy, according to the times that the mobile intelligent terminal sends the request for using the anonymous identity to the visa mechanism TSM, the anonymous identity identification number set I is sent to the mobile intelligent terminal₁All anonymous identification numbers inTraversing and using the materials;

correspondingly, when the mobile intelligent terminal sends a request to the visa mechanism TSM to use the anonymous identity identification number, and the visa mechanism TSM feeds back the corresponding anonymous identity identification number to the mobile intelligent terminal, the mobile intelligent terminal and the visa mechanism TSM use a primary shared secret key; for example, the mobile intelligent terminal requests the visa mechanism TSM to use the anonymous identity identification number for the first timeThen the shared key set S will be used₁Is the first shared key SK¹ _Mobile-TSMSending to a visa organization TSM; correspondingly, if the mobile intelligent terminal requests the visa organization for the second time to use the anonymous identity identification numberThen, the shared secret key set S₁Is the second shared key SK² _Mobile-TSMSending to a visa organization TSM;

wherein, the visa organization shares the secret key SK with the mobile intelligent terminal¹ _Mobile-TSMAnd the time T for sending the authentication request information by the mobile intelligent terminal₁And shared secret key SK¹ _Mobile-TSMGeneration time K of₁Only the visa organization and the mobile intelligent terminal know, other third parties, such as a medical charging terminal and an illegal user terminal, cannot acquire the shared secret key SK¹ _Mobile-TSMBy sharing the secret key SK¹ _Mobile-TSMAuthentication request information transmission time T₁And shared secret key SK¹ _Mobile-TSMGeneration time K₁The encrypted information is used as the encrypted information of the mobile intelligent terminal and the visa mechanism, so that the information security of the mobile intelligent terminal is ensured;

step 2, the medical charging terminal takes the global identity identification number of the second NFC module as the real identity identification number of the medical charging terminal, registers a collection account on a bank account management platform, and the bank account management platform stores the real identity identification number of the medical charging terminal; the medical charging terminal sends the real identity identification number to a visa mechanism TSM for storage, and an anonymous identity identification number set of the medical charging terminal and a shared secret key set of the visa mechanism and the medical charging terminal are generated and stored by the visa mechanism TSM; wherein,

the real ID number of the medical charging terminal is marked as ID_MedicalThe anonymous ID number set of the medical charging terminal is marked as I₂The shared secret key set of the visa organization and the medical charging terminal is marked as S₂(ii) a Wherein,

$I_2=\{{\mathrm{ID}}_{1^{Medical}}^{\′},{\mathrm{ID}}_{2^{Medical}}^{\′},...,{\mathrm{ID}}_{m^{Medical}}^{\′}\},$

S₂＝{SK¹ _Medical-TSM,SK² _Medical-TSM,…,SK^m _Medical-TSM}；

i (i ═ 1,2, …, m) th anonymous identity number of medical service subsystemThe ith shared secret key SK between the visa organization and the medical service subsystemⁱ _Medical-TSMIn a one-to-one correspondence relationship;

i (i ═ 1,2, …, m) th anonymous identification number of medical charging terminalShared secret key SK with ithⁱ _Medical-TSMThe one-to-one correspondence between the mobile intelligent terminals refers to the above description of the mobile intelligent terminals, and is not described herein again;

step 3, the mobile intelligent terminal sends an authentication request to a visa mechanism, the visa mechanism sends an anonymous identity set of the mobile intelligent terminal and a corresponding shared secret key set to the mobile intelligent terminal, and the sending time of the authentication request is stored; the time when the mobile intelligent terminal sends the visa request information is recorded as T₁；

Step 4, when the mobile intelligent terminal is close to the medical charging terminal and the distance between the mobile intelligent terminal and the medical charging terminal is larger than the near field communication distance, the mobile intelligent terminal sends near field communication request information to the medical charging terminal; wherein,

the near field communication request information comprises a first shared secret key SK generated by the mobile intelligent terminal and between the mobile intelligent terminal and the medical charging terminal¹ _{Mobile-Medical}The first visa random numbers c (c ∈ (0,9) and c ∈ Z) generated by the mobile intelligent terminal, and the time T when the mobile intelligent terminal sends visa request information₁The first anonymous identity identification number of the mobile intelligent terminalFirst between mobile intelligent terminal and visa mechanism TSMShared secret key SK¹ _Mobile-TSM(ii) a The near field communication request information is marked as follows:

$S_{M-M}(\mathrm{Re}quest,{\mathrm{ID}}_{1^{Mobile}}^{\′},c,T_1,{{\mathrm{SK}}^1}_{Mobile-TSM},{{\mathrm{SK}}^1}_{Mobile-Medical});$

shared secret key SK between mobile intelligent terminal and visa mechanism¹ _Mobile-TSMOnly the mobile intelligent terminal and the visa organization know, and other third parties including the medical charging terminal and the illegal user terminal cannot obtainGet the shared secret key SK¹ _Mobile-TSMTherefore, the information safety of the mobile intelligent terminal is ensured;

step 5, after receiving the near field communication request information sent by the mobile intelligent terminal, the medical charging terminal sends a first anonymous identity identification number including the medical charging terminalFirst shared secret key SK between medical charging terminal and visa institution¹ _Medical-TSMThe received permission authentication request information of the near field communication request information of the mobile intelligent terminal is authenticated by the visa mechanism TSM; wherein, the license authentication request information is marked as follows:

$S_{M-T}(\mathrm{Re}quest,{\mathrm{ID}}_{1^{Mobile}}^{\′},{\mathrm{ID}}_{1^{Medical}}^{\′},c,T_1,{{\mathrm{SK}}^1}_{Mobile-Medical},{{\mathrm{SK}}^1}_{Medical-TSM});$

shared secret key SK between medical charging terminal and visa institution¹ _Medical-TSMOnly the medical charging terminal and the visa authority know, and other third parties including the mobile intelligent terminal and the illegal user terminal can not obtain the shared secret key SK¹ _Medical-TSMTherefore, the information security of the medical charging terminal is ensured;

shared secret key SK¹ _{Mobile-Medical}Unknown to the medical toll terminal; therefore, the medical charging terminal can only acquire the anonymous identity identification number of the mobile intelligent terminalTherefore, the mobile intelligent terminal can be prevented from being impersonated by other illegal users, and further, the payment transaction process is illegally attempted to be sent to a visa organization and a medical charging terminal, so that the information safety of the mobile intelligent terminal is ensured;

step 6, the visa mechanism extracts and judges information according to the received permission authentication request information sent by the medical charging terminal, and the mobile intelligent terminal identity of the near field communication between the authentication request and the medical charging terminal is as follows:

mobile intelligence extracted from permit certification request information by visa authorityThe terminal anonymous identity identification number, the shared secret key between the mobile intelligent terminal and the visa mechanism, and the generation time of the shared secret key are all integrated with the anonymous identity identification number I of the mobile intelligent terminal stored in the visa mechanism₁Sharing a key set S₁Sharing the key generation time K₁If the correspondence is consistent, the visa mechanism sends the permission near field communication information to the medical charging terminal; otherwise, sending the information of refusing the near field communication to the medical charging terminal;

the licensed near field communication information sent by the visa mechanism comprises a first shared secret key SK between the mobile intelligent terminal and the visa mechanism¹ _Mobile-TSMThe shared key SK¹ _Mobile-TSMGeneration time K of₁And the time T for sending the authentication request information by the mobile intelligent terminal₁The first shared secret key SK between the visa mechanism and the mobile intelligent terminal¹ _Mobile-TSM(ii) a Wherein:

licensed near field communication information tag S_T-M(Accept,T₁,K₁,SK¹ _Mobile-TSM,SK¹ _Medical-TSM)；

Rejection of near field communication information tag S_T-M(Reject,SK¹ _Medical-TSM)；

Wherein, the shared secret key SK in the license authentication request information sent by the medical charging terminal¹ _Medical-TSMThe system is used for enabling the visa organization to verify the identity of the medical charging terminal and realizing communication between the medical charging terminal and the visa organization after the medical charging terminal passes the verification;

and 7, the medical charging terminal feeds back the near field communication request information sent by the mobile intelligent terminal according to the received permission near field communication information or rejection near field communication information of the visa mechanism:

when the medical charging terminal receives the permission near field communication information of the visa mechanism, the medical charging terminal receives the near field communication request sent by the mobile intelligent terminal and sends the acceptance near field communication information including a second visa random number d (d belongs to [0,9] and d is not equal to c, d belongs to Z) generated by the medical charging terminal to the mobile intelligent terminal; the second visa random number d is different from the first visa random number c, so that the difficulty of the illegal user terminal in intercepting the second visa random number is increased, and the information security of the transaction between the mobile intelligent terminal and the medical charging terminal is improved;

when the medical charging terminal receives the near field communication rejection information of the visa organization, the medical charging terminal rejects the near field communication request sent by the NFC mobile wallet and sends the near field communication rejection information to the mobile intelligent terminal;

step 8, the mobile intelligent terminal receives the information sent by the medical charging terminal, and makes judgment and operation according to the received information:

when the received information is near field communication receiving information, the mobile intelligent terminal extracts a shared secret key generation time value between the mobile intelligent terminal and a visa mechanism contained in the near field communication receiving information, and judges the extracted shared secret key generation time value and a shared secret key generation time value K stored in the mobile intelligent terminal₁When the mobile intelligent terminal is consistent with the mobile intelligent terminal, the mobile intelligent terminal generates a virtual keyboard comprising letters and numbers in a mixed mode, a payment password in the form of letters and numbers is input through the virtual keyboard, the payment password is embedded into a preset image, the secret-carrying image embedded with the payment password is sent to a third-party payment platform, and meanwhile, the mobile intelligent terminal sends the first anonymous identity identification number of the mobile intelligent terminal which is respectively invalidatedAnd the mobile intelligent terminal and the first shared secret key SK of the visa organization¹ _Mobile-TSMTo a visa authority; otherwise, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal; because the virtual keyboard is the mixture of letters and numbers, the difficulty of cracking the payment password by a malicious illegal terminal can be increased, and the safety of the payment password is improved;

and when the received information is the information rejecting the near field communication, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal, and the payment process of the mobile intelligent terminal to the medical charging terminal is stopped. Wherein, to the process that mobile intelligent terminal will pay the password embedding in presetting the image, the embedding process of payment password in this embodiment includes following step (a) to step (e):

(a) according to the preset number M, the mobile intelligent terminal selects M external static images stored or obtained by the mobile intelligent terminal, the selected M static images are respectively numbered and then subjected to noise elimination, and the number is t₀The static image of (2) is embedded with a mark; wherein the still image after each number is denoted as C_l1,2, …, M, the still image with embedded markers is C_t0'，t₀Is one preset fixed numerical value in the numbers 1 to M;

(b) converting the payment password into binary bit streams, and grouping the obtained binary bit streams by taking 8 bits as a group to obtain N groups of binary bit streams; wherein each set of binary bit streams has 2⁸A combination scheme is adopted;

(c) according to each combination scheme in each group of binary bit streams, selecting the inverse bit position corresponding to each combination scheme, and performing inverse position processing on the inverse bit position to generate 2⁸Group inverted binary bit streams;

(d) will 2⁸Group-inverted binary bit streams are embedded into a still image C having embedded marks by a minimum histogram distortion method, respectively_t0' in (1), obtaining a secret-carrying image C_gh' (g 1,2, …, N, h 1,2, …,256), and a secret image C is calculated_gh' with static image C_t0' matching value ξ_ghJudging the secret-carrying image C_gh' with static image C_t0' matching value ξ_ghWhether the preset best match value ξ is reached_opt：

When the matching value ξ_ghAnd preset best matching value ξ_optAbsolute difference of (2)_ghLess than or equal to a predetermined absolute difference value Δ, i.e. d_ghWhen £ delta, it represents the packingImage C_gh' with static image C_t0' achieving best match value ξ_opt(ii) a Otherwise, it represents the secret image C_gh' with static image C_t0' not reaching the best match value ξ_optWherein the matching value is ξ_ghAbsolute difference value d_ghThe calculation formula of (a) is as follows:

_gh＝|ξ_gh-ξ_opt|，ξ_gh＝h_mod,gh·D_gh(PPQ)；

$h_{nod,gh}=\underset{n=0}{\overset{255}{\Σ}}|{\mathrm{hs}}_{gh}\left(n\right)-hc\left(n\right)|,D_{ij}\left(PPQ\right)=\underset{n=0}{\overset{255}{\Σ}}{\[\ln p\left(n\right)-q_{ij}\left(n\right)\]}^{p\left(n\right)};$

wherein h is_mod,ghRepresenting a static image C corresponding to the h-th set of inverted binary bitstreams_t0' amount of change of histogram before and after embedding payment code, C_gh' represents the g-th secret image in the h-th group of inverted binary bit streams; h (n) represents a still image C_t0' histogram at gray value n, hs_gh(n) denotes a secret image C in the h-th set of inverted binary bit streams_gh' histogram at gray value n; d_gh(PPQ) represents the static image C in the h-th set of inverted binary bitstreams_t0' and secret-carrying image C_gh' the correlation coefficient, p (n), represents a still image C_t' probability at a gray value of n, q_gh(n) secret image C_gh' probability at a gray value of n;

(e) if carrying the secret image C_gh' with static image C_t0' not reaching the preset best match value ξ_optThen, the step (d) is returned to select the next combination scheme for the loop judgment until the judgment reaches the preset best matching value ξ_optUntil packet replacement scheme of (1);

if the h-th group inverts 2 of the binary bit stream⁸The best matching value ξ is not reached in any of the combination schemes_optThe remaining N-1 sets of binary bit streams are traversed and step (a) is performed again until a preset best match value ξ is reached_optWherein a preset best match value ξ is reached_optThe secret-carrying image corresponding to the time is marked as C_xy'，x＝1,2,…,N，y＝1,2,…,256。

The operation of the near field communication mobile medical service system in the embodiment of the invention is described below with reference to fig. 1:

when a patient enters the medical service subsystem for a doctor, the patient acquires the identity card information of the patient through the mobile intelligent terminal, and the mobile intelligent terminal registers at the medical record registration module through establishing Bluetooth communication, and meanwhile, the registration information of the patient is stored in a medical information database of the medical service subsystem for storage; the doctor on-line display displays the patient registration information in the medical information database by calling the patient registration information, so that a doctor can know the basic registration information of the patient to be treated, the queuing and registration time of the traditional medical service system is reduced, and the treatment efficiency is improved; when the patient needs to pay for the medical fee, the near field communication between the mobile intelligent terminal and the medical fee charging terminal is realized by utilizing the optimal NFC relay, so that the patient can complete fee payment at a longer distance without consuming too much time to queue for payment; in the process of establishing payment transaction between the mobile intelligent terminal and the medical charging terminal, the mobile intelligent terminal and the medical charging terminal utilize anonymous identity identification number interaction data generated by a visa mechanism, so that the safety of the payment process is further ensured.

In addition, when a remote doctor needs to be seen, the mobile intelligent terminal is used for collecting video information, audio information, pulse information, heart rate information, blood sugar information and grip strength information of a patient, the video information, the audio information, the pulse information, the heart rate information, the blood sugar information and the grip strength information are transmitted to the medical service subsystem through the first LTE communication module in an idle frequency band, the video condition of the patient is displayed through the touch display screen, meanwhile, the medical service subsystem reconstructs the pulse according to the received and extracted audio parameters of the patient, the true condition of the pulse of the patient is reproduced to a doctor, and therefore the doctor can diagnose the symptoms of the patient remotely and accurately.

Claims (2)

1. The near field communication mobile medical service system is characterized by comprising a mobile intelligent terminal, a medical service subsystem, a visa mechanism, a third party payment platform and a bank account management platform, wherein the visa mechanism is respectively connected with the mobile intelligent terminal and the medical service subsystem; wherein:

the mobile intelligent terminal comprises a microprocessor, a second-generation identity card scanner, a fingerprint collector, an encryption module, a video collector, an audio collector, a pulse sensor, a heart rate sensor, a blood glucose collector, a grip strength detector, a memory, a first LTE communication module, a first Bluetooth module, a first NFC module and a first spectrum sensing module capable of detecting idle frequency bands, wherein the second-generation identity card scanner, the fingerprint collector, the encryption module, the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood glucose collector, the; the second-generation identity card scanner and the fingerprint collector are respectively connected with an encryption module, and the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood sugar collector and the grip strength detector are respectively connected with a memory; the memory is respectively connected with the first LTE communication module, the first Bluetooth module and the first NFC module; the video collector, the audio collector, the pulse sensor, the heart rate sensor, the blood sugar collector and the grip strength detector are respectively connected with the first LTE communication module; the first LTE communication module is connected with a first spectrum sensing module; wherein:

the second-generation ID card scanner is used for acquiring the ID card information of the patient, encrypting the ID card information by the encryption module and storing the encrypted ID card information in the memory;

the fingerprint collector is used for collecting fingerprint information of a legal owner of the mobile intelligent terminal so as to confirm that the mobile intelligent terminal completes the payment transaction process by utilizing the first NFC module;

the video collector and the audio collector are respectively used for correspondingly obtaining video and audio information of a patient, and transmitting the video and audio information to the medical service subsystem by using the first LTE communication module while storing the video and audio information in the memory;

the medical service subsystem comprises a central processing unit, a medical information database, a medical record registration module, a touch display screen, a noise filter, an audio processor, a vibrator, a second spectrum sensing module, a second LTE communication module, a second Bluetooth module, a medical charging terminal with a second NFC module, N (N is more than or equal to 3) NFC relay modules and a doctor hanging diagnosis display, wherein the medical information database, the medical record registration module, the touch display screen, the noise filter, the audio processor, the vibrator, the second spectrum sensing module, the second LTE communication module, the second Bluetooth module and the medical charging; the touch display screen and the noise filter are respectively connected with a second LTE communication module, and the second LTE communication module is connected with a second spectrum sensing module; the second Bluetooth module and the second NFC module are respectively connected with the medical record registration module; the medical record registration module is connected with the medical information database; the medical information database is connected with a doctor on-hook display; the audio processor is connected with the vibrator; the N (N is more than or equal to 3) NFC relay modules are respectively connected with the second NFC module; wherein:

the medical record registration module is used for realizing that the mobile intelligent terminal is connected with the first Bluetooth module and the second Bluetooth module after being paired and communicated, and sending the identity card information of the registered patient to the medical information database for storage after registration;

the medical information database is used for sending the patient information to the doctor on-hook display according to the patient registration information and the registration sequence;

the doctor on-line display is used for displaying registered patient information so that a doctor can know the registered patient information;

the touch display screen is used for displaying the received remote video of the patient so that a doctor can master the basic disease condition of the patient according to the remote video;

the noise filter is used for filtering noise in the received pulse audio of the patient and sending the obtained pure pulse audio to the audio processor for processing;

the audio processor is used for amplifying the received pure pulse audio and extracting the frequency and amplitude of the amplified pulse audio to the central processor;

the second spectrum sensing module is used for detecting a communication frequency band in an idle state around the medical service subsystem and sending an idle communication frequency band value to the central processing unit;

on one hand, after receiving the pulse audio amplitude sent by the audio processor, the central processor commands the vibrator to vibrate according to a certain frequency and amplitude to reconstruct the pulse of the patient, so that a doctor can master the real pulse condition of the patient at a far end; on one hand, according to the received idle communication frequency band value, a second LTE communication module is instructed to switch to the idle communication frequency band for communication; on the other hand, acquiring an NFC relay module with optimal relay performance as an optimal NFC relay module;

the second Bluetooth module is used for being connected with the first Bluetooth module in a matching mode, so that the patient can complete registration in time within a Bluetooth communication distance by using the mobile intelligent terminal;

the medical charging terminal is used for completing the near field communication payment transaction process of the mobile intelligent terminal and the medical charging terminal through the relay forwarding of the optimal NFC relay module; the process of realizing the near field communication payment transaction by the mobile intelligent terminal and the medical charging terminal sequentially comprises the following steps:

(1) the mobile intelligent terminal takes the global identity identification number of the first NFC module as the real identity identification number of the mobile intelligent terminal, registers and stores the real identity identification number, a payment special account, an account payment password and a secret-carrying image extraction secret key of the mobile intelligent terminal on a third-party payment platform, sends the real identity identification number of the mobile intelligent terminal to a visa mechanism for storage, generates an anonymous identity identification number set corresponding to the mobile intelligent terminal and a shared secret key set between the visa mechanism and the mobile intelligent terminal by the visa mechanism, and records the generation time of each shared secret key in the shared secret key set by the visa mechanism; wherein,

real identity identification number mark of mobile intelligent terminal is ID_MobileAnd the anonymous identity identification number set of the mobile intelligent terminal is marked as I₁The signature organization is marked as TSM, and the real identity identification number of the TSM is marked as ID_TSMThe shared secret key set of the visa organization and the mobile intelligent terminal is marked as S₁Sharing a secret Key SKⁱ _Mobile-TSMIs recorded as K_i(ii) a Wherein:

$I_1=\{{\mathrm{ID}}_{1^{\mathrm{Mobile}}}^{\′},{\mathrm{ID}}_{2^{\mathrm{Mobile}}}^{\′},...,{\mathrm{ID}}_{m^{\mathrm{Mobile}}}^{\′}\},$

S₁＝{SK¹ _Mobile-TSM,SK² _Mobile-TSM,···,SK^m _Mobile-TSM}；

the i (i ═ 1,2 ·, m) th anonymous identity identification number of the mobile intelligent terminalIth shared secret key SK between the mobile intelligent terminal and the visa organizationⁱ _Mobile-TSMIn a one-to-one correspondence relationship;

(2) the medical charging terminal takes the global identity identification number of the second NFC module as the real identity identification number of the medical charging terminal, a collection account is registered on the bank account management platform, and the real identity identification number of the medical charging terminal is stored by the bank account management platform; the medical charging terminal sends the real identity identification number to a visa mechanism TSM for storage, and an anonymous identity identification number set of the medical charging terminal and a shared secret key set of the visa mechanism and the medical charging terminal are generated and stored by the visa mechanism TSM; wherein:

the real ID number of the medical charging terminal is marked as ID_MedicalThe anonymous ID number set of the medical charging terminal is marked as I₂The shared secret key set of the visa organization and the medical charging terminal is marked as S₂(ii) a Wherein:

$I_2=\{{\mathrm{ID}}_{1^{\mathrm{Medical}}}^{\′},{\mathrm{ID}}_{2^{\mathrm{Medical}}}^{\′},...,{\mathrm{ID}}_{m^{\mathrm{Medical}}}^{\′}\},$

S₂＝{SK¹ _Medical-TSM,SK² _Medical-TSM,···,SK^m _Medical-TSM}；

the i (i ═ 1,2, ·, m) th anonymous identity number of the medical service subsystemThe ith shared secret key SK between the visa organization and the medical service subsystemⁱ _Medical-TSMIn a one-to-one correspondence relationship;

(3) the mobile intelligent terminal sends an authentication request to a visa mechanism, the visa mechanism sends an anonymous identity set of the mobile intelligent terminal and a corresponding shared secret key set to the mobile intelligent terminal, and the sending time of the authentication request is stored; time T for sending visa request information by mobile intelligent terminal₁；

(4) When the mobile intelligent terminal is close to the medical charging terminal and the distance between the mobile intelligent terminal and the medical charging terminal is greater than the near field communication distance, the mobile intelligent terminal sends near field communication request information to the medical charging terminal; wherein:

the near field communication request information comprises a first shared secret key SK generated by the mobile intelligent terminal and between the mobile intelligent terminal and the medical charging terminal¹ _{Mobile-Medical}The first visa random numbers c (c ∈ (0,9) and c ∈ Z) generated by the mobile intelligent terminal, and the time T when the mobile intelligent terminal sends visa request information₁The first anonymous identity identification number of the mobile intelligent terminalFirst shared secret key SK between mobile intelligent terminal and visa mechanism TSM¹ _Mobile-TSM(ii) a Wherein the near field communication request information mark is

(5) After receiving the near field communication request information sent by the mobile intelligent terminal, the medical charging terminal sends a first anonymous identity identification number including the medical charging terminalFirst shared secret key SK between medical charging terminal and visa institution¹ _Medical-TSMThe received permission authentication request information of the near field communication request information of the mobile intelligent terminal is authenticated by the visa mechanism TSM; wherein, the license authentication request information is marked as follows:

$S_{M-T}(\mathrm{Request},{\mathrm{ID}}_{1^{\mathrm{Mobile}}}^{\′},{\mathrm{ID}}_{1^{\mathrm{Medical}}}^{\′},c,T_1,{{\mathrm{SK}}^1}_{\mathrm{Mobile}-\mathrm{Medical}},{{\mathrm{SK}}^1}_{\mathrm{Medical}-\mathrm{TSM}});$

(6) the visa mechanism extracts and judges information according to the received permission authentication request information sent by the medical charging terminal, and the mobile intelligent terminal identity of the authentication request and the medical charging terminal in near field communication is as follows:

when the mobile intelligent terminal anonymous identity identification number extracted by the visa authority in the license authentication request information, the shared secret key between the mobile intelligent terminal and the visa authority and the generation time of the shared secret key are all the same as the mobile intelligent terminal anonymous identity identification number set I stored by the visa authority₁Sharing a key set S₁Sharing the key generation time K₁If the correspondence is consistent, the visa mechanism sends the permission near field communication information to the medical charging terminal; otherwise, sending the information of refusing the near field communication to the medical charging terminal; wherein,

the licensed near field communication information sent by the visa mechanism comprises a first shared secret key SK between the mobile intelligent terminal and the visa mechanism¹ _Mobile-TSMThe shared key SK¹ _Mobile-TSMGeneration time K of₁And the time T for sending the authentication request information by the mobile intelligent terminal₁The first shared secret key SK between the visa mechanism and the mobile intelligent terminal¹ _Mobile-TSM(ii) a Wherein:

licensed near field communication information tag S_T-M(Accept,T₁,K₁,SK¹ _Mobile-TSM,SK¹ _Medical-TSM)；

Rejection of near field communication information tag S_T-M(Reject,SK¹ _Medical-TSM)；

(7) The medical charging terminal feeds back the near field communication request information sent by the mobile intelligent terminal according to the received permission near field communication information or rejection near field communication information of the visa mechanism:

when the medical charging terminal receives the permission near field communication information of the visa organization, the medical charging terminal accepts the near field communication request sent by the mobile intelligent terminal and sends a second visa random number d (d ∈ [0,9] generated by the medical charging terminal]And isd ∈ Z) receiving the near field communication information to the mobile intelligent terminal;

when the medical charging terminal receives the near field communication rejection information of the visa organization, the medical charging terminal rejects the near field communication request sent by the NFC mobile wallet and sends the near field communication rejection information to the mobile intelligent terminal;

(8) the mobile intelligent terminal receives the information sent by the medical charging terminal, and makes judgment and operation according to the received information:

when the received information is near field communication receiving information, the mobile intelligent terminal extracts a shared secret key generation time value between the mobile intelligent terminal and a visa mechanism contained in the near field communication receiving information, and judges the extracted shared secret key generation time value and a shared secret key generation time value K stored in the mobile intelligent terminal₁When the mobile intelligent terminal is consistent with the mobile intelligent terminal, the mobile intelligent terminal generates a virtual keyboard comprising letters and numbers in a mixed mode, a payment password in the form of letters and numbers is input through the virtual keyboard, the payment password is embedded into a preset image, the secret-carrying image embedded with the payment password is sent to a third-party payment platform, and meanwhile, the mobile intelligent terminal sends the first anonymous identity identification number of the mobile intelligent terminal which is respectively invalidatedAnd the mobile intelligent terminal and the first shared secret key SK of the visa organization¹ _Mobile-TSMTo a visa authority; otherwise, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal;

and when the received information is the information rejecting the near field communication, the mobile intelligent terminal stops sending the near field communication request information to the medical charging terminal, and the payment process of the mobile intelligent terminal to the medical charging terminal is stopped.

2. The near field communication mobile medical service system according to claim 1, wherein in the step (8), the process of embedding the payment password into the preset image by the mobile intelligent terminal comprises the following steps (a) to (e):

(a) according to the preset number M, the mobile intelligent terminal selects M frames to store or acquire the M framesAnd respectively numbering the selected M static images, then performing noise elimination processing, and numbering t₀The static image of (2) is embedded with a mark; wherein the still image after each number is denoted as C_l1,2, M, a static image with embedded marks is C_t0'，t₀Is one preset fixed numerical value in the numbers 1 to M;

(b) converting the payment password into binary bit streams, and grouping the obtained binary bit streams by taking 8 bits as a group to obtain N groups of binary bit streams; wherein each set of binary bit streams has 2⁸A combination scheme is adopted;

(c) according to each combination scheme in each group of binary bit streams, selecting the inverse bit position corresponding to each combination scheme, and performing inverse position processing on the inverse bit position to generate 2⁸Group inverted binary bit streams;

(d) will 2⁸Group-inverted binary bit streams are embedded into a still image C having embedded marks by a minimum histogram distortion method, respectively_t0' in (1), obtaining a secret-carrying image C_gh' (g ═ 1,2,. cndot., N, h ═ 1,2,. dot., 256) to calculate a secret image C_gh' with static image C_t0' matching value ξ_ghJudging the secret-carrying image C_gh' with static image C_t0' matching value ξ_ghWhether the preset best match value ξ is reached_opt：

When the matching value ξ_ghAnd preset best matching value ξ_optAbsolute difference of (2)_ghLess than or equal to a predetermined absolute difference Δ, i.e._ghWhen the value is less than or equal to Delta, the secret image C is represented_gh' with static image C_t0' achieving best match value ξ_opt(ii) a Otherwise, it represents the secret image C_gh' with static image C_t0' not reaching the best match value ξ_optWherein the matching value is ξ_ghAbsolute difference value_ghThe calculation formula of (a) is as follows:

_gh＝|ξ_gh-ξ_opt|，ξ_gh＝h_mod,gh·D_gh(PPQ)；

$\begin{array}{cc}{h}_{\mathrm{mod},gh}=\underset{n=0}{\overset{255}{\mathrm{\Σ}}}\left|{\mathrm{hs}}_{gh}\left(n\right)-hc\left(n\right)\right|,& D_{ij}\left(PPQ\right)=\underset{n=0}{\overset{255}{\mathrm{\Σ}}}{\[\ln p\left(n\right)-q_{ij}\left(n\right)\]}^{p\left(n\right)};\end{array}$

wherein h is_mod,ghRepresenting a static image C corresponding to the h-th set of inverted binary bitstreams_t0' amount of change of histogram before and after embedding payment code, C_gh' represents the g-th secret image in the h-th group of inverted binary bit streams; h (n) represents a still image C_t0' histogram at gray value n, hs_gh(n) denotes a secret image C in the h-th set of inverted binary bit streams_gh' histogram at gray value n; d_gh(PPQ) represents the static image C in the h-th set of inverted binary bitstreams_t0' and secret-carrying image C_gh' the correlation coefficient, p (n), represents a still image C_t' probability at a gray value of n, q_gh(n) secret image C_gh' probability at a gray value of n;

(e) if carrying the secret image C_gh' with static image C_t0' not reaching the preset best match value ξ_optThen, the step (d) is returned to select the next combination scheme for the loop judgment until the judgment reaches the preset best matching value ξ_optUntil packet replacement scheme of (1);

if the h-th group inverts 2 of the binary bit stream⁸The best matching value ξ is not reached in any of the combination schemes_optThe remaining N-1 sets of binary bit streams are traversed, and step (a) is performed again,until reaching the preset optimum matching value ξ_optWherein a preset best match value ξ is reached_optThe secret-carrying image corresponding to the time is marked as C_xy'，x＝1,2,···,N，y＝1,2,···,256。