CN107257366B - Mobile medical system based on mobile terminal - Google Patents
Mobile medical system based on mobile terminal Download PDFInfo
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- CN107257366B CN107257366B CN201710421035.6A CN201710421035A CN107257366B CN 107257366 B CN107257366 B CN 107257366B CN 201710421035 A CN201710421035 A CN 201710421035A CN 107257366 B CN107257366 B CN 107257366B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The invention provides a mobile medical system based on a mobile terminal, which comprises a patient information transceiving module based on a mobile sensor node network, a mobile intelligent terminal and a medical service center, wherein the mobile intelligent terminal is in remote communication connection with the medical service center, and the patient information transceiving module is used for acquiring patient condition information through the mobile sensor node network and sending the patient condition information to the medical service center. According to the invention, the user can transmit the illness state information to the remote medical service center by means of the mobile intelligent terminal and the patient information transceiving module, and the medical service center can also carry out remote treatment on the patient by means of the mobile medical equipment, so that the intelligent and convenient medical treatment system is intelligent and convenient.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a mobile medical system based on a mobile terminal.
Background
Currently, the demand of people for medical treatment is increasing, however, the informatization and process procedures of medical institutions are still to be improved. The reasons for this situation are mainly: data between the user and the medical institution cannot be communicated; inside the hospital, the communication effect between the hospital and the client is not ideal enough; medical data and personal health files of the same patient cannot be shared among medical institutions. While mobile applications involve a multiplicity of technologies and complexity of implementation, they also pose obstacles to "ubiquitous" ambulatory medicine to some extent. Some existing mobile medical information system solutions are relatively simple in function, cannot really realize real-time mobile application, are limited by regions to a greater or lesser extent, and the intelligence degree and the openness of the system are also to be improved.
Disclosure of Invention
In order to solve the problems, the invention provides a mobile medical system based on a mobile terminal.
The purpose of the invention is realized by adopting the following technical scheme:
the mobile medical system comprises a patient information transceiving module based on a mobile sensor node network, a mobile intelligent terminal and a medical service center, wherein the mobile intelligent terminal is in remote communication connection with the medical service center, and the patient information transceiving module is used for acquiring patient condition information through the mobile sensor node network and sending the patient condition information to the medical service center.
The invention has the beneficial effects that: the user can transmit the state of an illness information to a remote medical service center by means of the mobile intelligent terminal and the patient information receiving and sending module, the medical service center can also carry out remote treatment on the patient by means of the mobile medical equipment, and the intelligent medical treatment system is intelligent and convenient.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a block diagram of the present invention;
fig. 2 is a connection block diagram of the mobile intelligent terminal of the invention.
Reference numerals:
the system comprises a patient information transceiving module 1, a mobile intelligent terminal 2, a medical service center 3, a remote communication module 10, a display module 20, a patient condition information recording module 30 and an image data acquisition module 40.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1 and 2, the mobile medical system based on the mobile terminal provided in this embodiment includes a patient information transceiver module 1 based on a mobile sensor node network, a mobile intelligent terminal 2, and a medical service center 3, where the mobile intelligent terminal 2 is in remote communication connection with the medical service center 3, and the patient information transceiver module 1 is configured to acquire patient condition information of a patient through the mobile sensor node network and send the patient condition information to the medical service center 3.
Preferably, the mobile intelligent terminal 2 includes a remote communication module 10 and a display module 20, the remote communication module 10 is configured to enable the mobile intelligent terminal 2 to access a wide area network to perform data interaction and transmission with the medical service center 3, and the display module 20 is configured to display the operation state of the mobile intelligent terminal 2 and various information pushed by the medical service center 3.
Preferably, the mobile intelligent terminal 2 further comprises a patient condition information entry module 30 and an image data acquisition module 40; the patient condition information input module 30 is used for a user to input patient condition information; the image data acquisition module 40 is used for acquiring image data related to the illness state of the user; the patient condition information and the image data are transmitted to the medical service center 3 via the remote communication module 10.
According to the mobile medical system provided by the embodiment of the invention, the user can transmit the illness state information to the remote medical service center 3 by virtue of the mobile intelligent terminal 2 and the patient information transceiving module 1, and the medical service center 3 can also carry out remote treatment on the patient by virtue of the mobile medical equipment, so that the mobile medical system is intelligent, convenient and fast.
Preferably, the mobile sensor node network comprises a plurality of mobile sensor nodes carried by a patient and static sensor nodes with fixed positions, the mobile sensor nodes transmit data to each other to form a delay tolerant network, the static sensor nodes form a communication network, and the static sensor nodes communicate with the mobile sensor nodes in a communication range;
when the mobile sensor node detects abnormal patient state of an illness information, the medical service center 3 sends alarm information to the intelligent mobile terminal, the alarm information includes the position of the mobile sensor node and the abnormal patient state of an illness information, the mobile sensor node carries out self-positioning according to the instruction of the medical service center 3, and the method specifically comprises the following steps:
(1) during positioning, the mobile sensor node continuously sends positioning request data packets to the static sensor node at T time intervals in a set period according to the set transmitting signal strength, and the format of the positioning request data packets is { IDM,NM,γMT }, where, IDMNumber for Mobile sensor node, NMNumber of positioning request packets, gamma, sent in a cycle for the mobile sensor nodeMThe sequence numbers of the positioning request data packets sent this time in all the sent positioning request data packets are represented;
(2) when the static sensor node receives the positioning request data packet for the first time, the static sensor node continuously receives NMThe method comprises the steps that the time is multiplied by T, when a positioning request data packet is received, a corresponding signal strength indicated value is detected and recorded, if a certain positioning request data packet is not received, the corresponding signal strength indicated value is set to be 0, after the static sensor node receives the positioning request data packet, a feedback data packet is constructed and sent to the mobile sensor node, and the format of the feedback data packet isWherein, IDsReference number, x, denoting the static sensor nodes,ysFor the position coordinates of the static sensor node,
sequentially recorded signal strength indication values;
(3) after receiving all feedback data packets, the mobile sensor node performs positioning calculation according to the feedback data packets, and specifically includes:
1) setting the static sensor node which has sent the feedback data packet as N1Any two static sensor nodes form a node pair, and the two static sensor nodes form a node pairA node pair;
2) calculating the distance ratio of the mobile sensor node to two static sensor nodes in the node pair according to the signal strength indicated value in the feedback data packet;
3) if the distance ratio of the node pair is smaller than a set ratio threshold, extracting the position coordinates of two static sensor nodes in the node pair, and calculating the position coordinates (x, y) of the mobile sensor node according to the following formula:
in the formula (I), the compound is shown in the specification,
representing the lateral position coordinates of the first static sensor node in the ith pair having a distance ratio less than a set ratio threshold,
representing the lateral position coordinates of the second static sensor node in the ith pair having a distance ratio less than a set ratio threshold,
indicating the longitudinal position coordinates of the first static sensor node in the ith pair having a distance ratio less than a set ratio threshold,
the longitudinal position coordinate of the second static sensor node in the node pair with the ith distance ratio smaller than the set ratio threshold value,
indicating the number of node pairs for which the distance ratio is less than the set ratio threshold.
In the related art, a common positioning method for a mobile sensor node is to calculate distances between a mobile node and a plurality of fixed nodes by obtaining signal strength indicated values between the plurality of fixed nodes and the mobile node, then establish an equation set according to coordinates of the fixed nodes and distances between the mobile node and the plurality of fixed nodes by using a trilateral positioning method or a centroid algorithm, and finally solve a coordinate position of the mobile node; compared with the positioning method in the related technology, the coordinate of the mobile sensor node is calculated by adopting the positioning algorithm, the calculation process is simple, the calculation amount is greatly reduced, the calculation speed is high, and the positioning efficiency of the mobile sensor node is improved, so that the position coordinate of the mobile sensor node can be sent to the medical service center 3 in time, automatic alarm can be conveniently realized when a patient suddenly becomes abnormal, and early treatment can be implemented.
Preferably, the calculating a distance ratio between the mobile sensor node and two static sensor nodes in the node pair according to the signal strength indicating value in the feedback data packet specifically includes:
(1) and expressing the difference value of the signal strength indicated values recorded by two static sensor nodes in the node pair according to a logarithmic path loss model:
in the formula (I), the compound is shown in the specification,
respectively representing the signal strength indicating values recorded by the first static sensor node and the second static sensor node in the jth node pair when receiving the positioning request data packet at the kth time, wherein rho is the path loss index of a logarithmic path loss model,
respectively determining random noise of a first static sensor node and a second static sensor node in a jth node pair when receiving a positioning request data packet at the kth time;
(2) calculating the magnitude probability of the difference value of the signal strength indicated values recorded by two static sensor nodes in the node pair according to the following formula:
in the formula (I), the compound is shown in the specification,
representing the magnitude probability of the difference value of the signal strength indicating values recorded by two static sensor nodes in the jth node pair, and the count () is a counting function used for calculating
Number of times of flight, NKThe number of signal strength indication values recorded for the static sensor nodes;
(3) to be provided with
And determining a corresponding expected value through a standard normal distribution table as a standard normal distribution probability, and taking the expected value as the distance ratio of the mobile sensor node to two static sensor nodes in the jth node pair.
The preferred embodiment provides a fast calculation mode of the distance ratio between the mobile sensor node and two static sensor nodes in the node pair, the calculation mode measures the relation between the difference value of the signal strength indicated values recorded by the two static sensor nodes and the distance ratio by means of a normal distribution statistical method, the distance ratio can be obtained fast and accurately, and flexible and robust mobile sensor node positioning is facilitated, so that the medical service center 3 is facilitated to rapidly acquire the specific position of a patient, timely treatment is achieved, and the safety of the patient is ensured.
Preferably, before the mobile sensor node performs positioning calculation according to the feedback data packet, the feedback data packet is filtered, and if a signal strength indicating value in the feedback data packet satisfies the following formula, the feedback data packet is removed:
wherein the count (. cndot.) is a count function for calculating the respective values satisfyingThe number of the indicated values of the signal strength at the time,
indicating the f signal strength indicator value, N, in the b feedback data packet received by the mobile sensor nodeTFor a set maximum value of the signal strength indicator value, NBThe b-th feedback data packet received for the mobile sensor node has signal strengthThe number of values indicated.
In the preferred embodiment, before the mobile sensor node is positioned by using the signal strength indicated value of the feedback data packet, the feedback data packet which does not meet the requirement is removed in advance, so that the influence of certain signal strength indicated values which are greatly influenced by the outside on positioning calculation can be reduced, the positioning precision of the mobile sensor node is improved, and the accurate positioning of the position of a patient is realized.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (4)
1. A mobile medical system based on a mobile terminal is characterized by comprising a patient information transceiving module based on a mobile sensor node network, a mobile intelligent terminal and a medical service center, wherein the mobile intelligent terminal is in remote communication connection with the medical service center; the mobile sensor node network comprises a plurality of mobile sensor nodes carried by a patient and static sensor nodes with fixed positions, wherein the mobile sensor nodes are mutually subjected to data transmission to form a delay tolerant network, the static sensor nodes form a communication network, and the static sensor nodes are communicated with the mobile sensor nodes in a communication range; when the mobile sensor node detects abnormal patient state of an illness information, the medical service center sends alarm information to the mobile intelligent terminal, the alarm information includes the position of the mobile sensor node and the abnormal patient state of an illness information, the mobile sensor node carries out self-positioning according to the instruction of the medical service center, and the method specifically comprises the following steps:
(1) during positioning, the mobile sensor node transmits a signal with a preset intensity T within a preset periodContinuously sending positioning request data packets to the static sensor nodes for time intervals, wherein the format of the positioning request data packets is { ID }M,NM,γMT }, where, IDMNumber for Mobile sensor node, NMNumber of positioning request packets, gamma, sent in a cycle for the mobile sensor nodeMThe sequence numbers of the positioning request data packets sent this time in all the sent positioning request data packets are represented;
(2) when the static sensor node receives the positioning request data packet for the first time, the static sensor node continuously receives NMThe method comprises the steps that the time is multiplied by T, when a positioning request data packet is received, a corresponding signal strength indicated value is detected and recorded, if a certain positioning request data packet is not received, the corresponding signal strength indicated value is set to be 0, after the static sensor node receives the positioning request data packet, a feedback data packet is constructed and sent to the mobile sensor node, and the format of the feedback data packet is
Wherein, IDSReference number, x, denoting the static sensor nodes,ysFor the position coordinates of the static sensor node,
sequentially recorded signal strength indication values;
(3) after receiving all feedback data packets, the mobile sensor node performs positioning calculation according to the feedback data packets, and specifically includes:
1) setting the static sensor node which has sent the feedback data packet as N1Any two static sensor nodes form a node pair, and the two static sensor nodes form a node pair
A node pair;
2) calculating the distance ratio of the mobile sensor node to two static sensor nodes in the node pair according to the signal strength indicated value in the feedback data packet;
3) if the distance ratio of the node pair is smaller than a set ratio threshold, extracting the position coordinates of two static sensor nodes in the node pair, and calculating the position coordinates (x, y) of the mobile sensor node according to the following formula:
in the formula (I), the compound is shown in the specification,
representing the lateral position coordinates of the first static sensor node in the ith pair having a distance ratio less than a set ratio threshold,representing the lateral position coordinates of the second static sensor node in the ith pair having a distance ratio less than a set ratio threshold,indicating the longitudinal position coordinates of the first static sensor node in the ith pair having a distance ratio less than a set ratio threshold,
the longitudinal position coordinate of the second static sensor node in the node pair with the ith distance ratio smaller than the set ratio threshold value,
indicating the number of node pairs for which the distance ratio is less than the set ratio threshold.
2. The mobile medical system as claimed in claim 1, wherein the mobile intelligent terminal comprises a remote communication module and a display module, the remote communication module is used for enabling the mobile intelligent terminal to access a wide area network for data interaction and transmission with the medical service center, and the display module is used for displaying the operation state of the mobile intelligent terminal and various information pushed by the medical service center.
3. The mobile medical system based on the mobile terminal as claimed in claim 2, wherein the mobile intelligent terminal further comprises a patient condition information input module and an image data acquisition module; the patient condition information input module is used for a user to input patient condition information; the image data acquisition module is used for acquiring image data related to the illness state of the user; the patient condition information and the image data are sent to a medical service center through a remote communication module.
4. The mobile medical system of claim 1, wherein the calculating of the distance ratio between the mobile sensor node and two static sensor nodes in the node pair according to the signal strength indication value in the feedback data packet specifically comprises:
(1) and expressing the difference value of the signal strength indicated values recorded by two static sensor nodes in the node pair according to a logarithmic path loss model:
in the formula (I), the compound is shown in the specification,
respectively representing the signal strength indicating values recorded by the first static sensor node and the second static sensor node in the jth node pair when receiving the positioning request data packet at the kth time, wherein rho is the path loss index of a logarithmic path loss model,
respectively determining random noise of a first static sensor node and a second static sensor node in a jth node pair when receiving a positioning request data packet at the kth time;
(2) calculating the magnitude probability of the difference value of the signal strength indicated values recorded by two static sensor nodes in the node pair according to the following formula:
in the formula (I), the compound is shown in the specification,
representing the magnitude probability of the difference value of the signal strength indicating values recorded by two static sensor nodes in the jth node pair, and the count () is a counting function used for calculating
Number of times of flight, NKThe number of signal strength indication values recorded for the static sensor nodes;
(3) to be provided with
And determining a corresponding expected value through a standard normal distribution table as a standard normal distribution probability, and taking the expected value as the distance ratio of the mobile sensor node to two static sensor nodes in the jth node pair.
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