CN105228106B - An indoor-based medical staff search method, positioning server and system - Google Patents

Abstract

The embodiment of the invention discloses one kind to be based on indoor medical staff's lookup method, include: the identity information that first movement terminal obtains target medical staff, and the first device identification of the identity information and the first movement terminal is sent to location-server；The location-server inquires the second device identification of the second mobile terminal corresponding with the identity information；The location-server determines the first position of first equipment according to first device identification, and the second position of the second mobile terminal is determined according to second device identification；The location-server goes out the optimal path between the first position and the second position according to preset layout of roads algorithmic rule；The location-server shows the first position, the second position and the optimal path in the first movement terminal.The embodiment of the invention also discloses a kind of location-server and systems.Using the present invention, required medical staff can be quickly found.

Description

An indoor-based medical staff search method, positioning server and system

technical field

The invention relates to the field of indoor positioning, in particular to a search method, positioning server and system based on indoor medical staff.

Background technique

With the popularization of various devices carrying positioning devices, various location-related software and technologies are also developing vigorously, and the demand for finding people who are physically close and communicating and exchanging information with each other is also increasingly prominent. For example, making friends, exchanging business cards, etc., you need to check the people within a certain physical distance first.

The personnel search technology in the prior art is mainly realized through GPS satellite positioning. In places with good satellite signal reception, if both the seeker and the seeker carry and activate the GPS satellite positioning system, it is possible to search for people within a certain physical distance. However, GPS satellite positioning technology has the following shortcomings:

First, the equipment requirements are high. The seeker and the seeker must carry a device with a GPS satellite positioning chip and turn it on at the same time to search for each other. Second, the requirements for the location of use are high. GPS satellite positioning requires both parties to be in a place with good satellite signal reception. It cannot be handled if one or both parties are indoors at the same time, or a deviation of more than 1 km will occur. Third, the search speed is slow. GPS precise positioning requires at least three GPS satellites to be connected. When the device is just turned on, the search speed is slow, and it takes 3 minutes or even longer. It is not suitable for occasions with high real-time requirements. In view of the shortcomings of GPS positioning, indoor positioning technology has emerged. At present, indoor positioning technology is mainly used in shopping malls and other scenarios. Businesses push promotional information to users according to the user's location. However, how to apply indoor positioning technology in hospitals to quickly find the target Healthcare workers are the focus of current research.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is to provide an indoor-based medical staff search method, a positioning server and a system. The target medical staff can be quickly found.

In order to solve the above technical problems, an embodiment of the present invention provides an indoor-based medical staff search method, including:

The first mobile terminal acquires the identity information of the target medical staff, and sends the identity information and the first device identifier of the first mobile terminal to the positioning server;

The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information;

The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification;

The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm;

The positioning server displays the first position, the second position and the optimal path on the first mobile terminal.

Correspondingly, an embodiment of the present invention also provides a positioning server, which is characterized by comprising:

a receiving module, configured to receive the identity information of the target medical staff sent by the first mobile terminal and the first device identifier of the first mobile terminal;

a query module, configured to query the second device identifier of the second mobile terminal corresponding to the identity information;

a positioning module, for determining a first position of the first mobile terminal according to the first device identification, and determining a second position of the second mobile terminal according to the second device identification;

a planning module, configured to plan an optimal path between the first position and the second position according to a preset route planning algorithm;

A push module, configured to display the first position, the second position and the optimal path on the first mobile terminal.

Correspondingly, an embodiment of the present invention also provides an indoor-based medical staff search system, including: a first mobile terminal, a second mobile terminal, multiple APs, and a positioning server, and the positioning server is established with the multiple APs communication connection; wherein,

The first mobile terminal obtains the identity information of the target medical staff; and sends the identity information and the first device identification of the first mobile terminal to the positioning server through the AP with the optimal link quality parameter among the multiple APs;

The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information;

The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification;

The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm;

The positioning server displays the first position, the second position and the optimal path on the first mobile terminal.

Implementing the embodiment of the present invention has the following beneficial effects:

The first mobile terminal obtains the identity information of the target medical staff, and the positioning server queries the device identification of the second mobile terminal corresponding to the identification information, determines the position of the second mobile terminal and the position of the first mobile terminal according to the device identification, and plans the first mobile terminal. The optimal path of the location and the second location, the location of the first mobile terminal, the location of the second mobile terminal and the optimal route are displayed on the first mobile terminal, so that the user can quickly find the medical staff, which is convenient for the user to use.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic structural diagram of an indoor-based medical staff search system provided by an embodiment of the present invention;

2 is a schematic flowchart of an indoor-based medical staff search method provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a positioning server according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 , it is a schematic structural diagram of a search system based on indoor medical staff according to an embodiment of the present invention. In this embodiment of the present invention, the search system is hereinafter referred to as a search system, and the search system includes a first mobile terminal 103 and a second mobile terminal 104 , multiple APs 102 and positioning servers 101, wherein multiple APs are deployed on each floor of the hospital to ensure that multiple APs can cover all, that is, the first mobile terminal held by the user and the second mobile terminal held by medical staff are in the hospital. WiFi signals can be received at any location, the first mobile terminal can be a smart phone, a tablet computer or other portable devices, and the second mobile terminal can be a work permit with a WiFi signal receiving device installed for medical staff to wear. Since the distribution positions of multiple APs are very large, the positioning server can be connected to multiple APs by wired means (such as coaxial cable, optical fiber or twisted pair), and the first mobile terminal and the second mobile terminal are covered by multiple APs. For a certain AP, the closer the mobile terminal is to the AP, the better the link quality parameter between the mobile terminal and the AP; the farther away from the AP, the worse the link quality is. When the distance from the AP is greater than the preset value, the mobile terminal cannot detect the WiFi signal sent by the AP. The first mobile terminal and the second mobile terminal communicate with the positioning server through one of the plurality of APs. The working principle of the search system according to the embodiment of the present invention is as follows:

The first mobile terminal obtains the identity information of the target medical staff; and sends the identity information and the first device identification of the first mobile terminal to the positioning server through the AP with the optimal link quality parameter among the multiple APs; the positioning server queries and identifies the identity information The second device identification of the corresponding second mobile terminal; the positioning server determines the first position of the first mobile terminal according to the first device identification, and determines the first position of the second mobile terminal according to the second device identification. two positions; the positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm; the positioning server displays the first position, all the the second position and the optimal path.

Specifically, the method for the first mobile terminal to obtain the identity information of the target person may be: the first mobile terminal scans the photo of the target medical staff to generate an image, sends the generated image to the positioning server, and the positioning server queries the template database according to the received image. and then determine the second device identifier of the second mobile terminal corresponding to the matching template image; or the first mobile terminal scans the QR code of the target medical staff, decodes the QR code and obtains a character string , send the obtained string to the positioning server, and the positioning server queries the database for the second device identifier corresponding to the string; or the positioning server broadcasts the personnel list of medical staff through multiple APs, and the first mobile terminal and multiple APs When a communication connection is established with a certain AP, the personnel list is displayed on the first mobile terminal, and each medical staff can be classified according to the department or part in the personnel list, and the avatars of each medical staff are displayed in the personnel list. When the avatar of the target medical staff is displayed, the first mobile terminal sends the identity information of the target medical staff (for example: name, job number, etc.) to the positioning server through the AP that has established a communication connection, and the positioning server queries the second device identifier corresponding to the identity information. Or the user directly inputs the identity information (such as name, job number, etc.) of the target medical staff on the interface of the first mobile terminal, the first mobile terminal sends the input identity information to the positioning server, and the positioning server queries the corresponding first mobile terminal of the identity information. 2. Device identification. The first device identifier and the second device identifier are used to uniquely determine the identity of the device, and may be a MAC address or an IMEI number, which is not limited in the present invention.

It should be noted that the method for the positioning server to plan the optimal path between the first position and the second position may be: the positioning server obtains the first floor corresponding to the first position and the second floor corresponding to the second position. The first floor and the second floor are not on the same floor, and the elevator waiting time between the first floor and the second floor is estimated. When the elevator waiting time is longer than the preset time, the positioning server selects the stairs to go to the second floor.

Implementing the embodiment of the present invention, the first mobile terminal obtains the identity information of the target medical staff, the location server queries the device identification of the second mobile terminal corresponding to the identification information, and determines the location of the second mobile terminal and the first mobile terminal according to the device identification. position, plan the optimal path of the first position and the second position, and display the position of the first mobile terminal, the position of the second mobile terminal and the optimal path on the first mobile terminal, so that the user can quickly find the Medical staff, user-friendly.

Referring to FIG. 2 , a search method based on an indoor medical staff provided by an embodiment of the present invention is provided. In the embodiment of the present invention, the method includes:

S201 The first mobile terminal acquires the identity information of the target medical staff, and sends the identity information and the first device identifier of the first mobile terminal to the positioning server.

Specifically, the identity information is used to uniquely represent the identity of the medical staff, and the identity information may include: name, job number, avatar, or QR code, etc. The first mobile terminal can obtain it by receiving user input, scanning an image or a QR code. The identity information of the target medical staff, after acquiring the identity information, the first mobile terminal sends the identity information and its own first device identifier to the positioning server through the AP, the first device identifier is used to uniquely identify the identity of the first mobile terminal, and the first device identifier is used to uniquely identify the identity of the first mobile terminal. A device identifier may be a MAC address or an IMEI, etc., which is not limited in the present invention. Wherein, the first mobile terminal may be a smart phone, a tablet computer or other portable devices, which is not limited in the present invention.

S202. The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information.

Specifically, the server stores a mapping relationship between identity information and device identifiers, each identity information uniquely corresponds to a device identifier, and operations such as deletion, addition, or modification can be performed as required when setting the mapping relationship. The location server receives the identity information sent by the first mobile terminal, and queries the device identifier corresponding to the identity information according to the mapping relationship. The queried device identifier is called the second device identifier, and the corresponding mobile terminal is the second mobile terminal. The second mobile terminal may be an RFID, and the RFID is implanted in the work permit worn by the medical staff.

S203. The positioning server determines a first location of the first mobile terminal according to the first device identifier, and determines a second location of the second mobile terminal according to the second device identifier.

Specifically, when the positioning server confirms the location of the mobile terminal, it first needs to determine the floor where the mobile terminal is located, and then use the AP on the floor to perform WiFi positioning to determine the coordinates of the mobile terminal on the floor. The method for determining the floor where the mobile terminal is located may be as follows: the distance between the mobile terminal and the AP is negatively correlated with the RSS, the closer the distance is, the larger the RSS, the farther the distance is, the smaller the RSS, and the mobile terminal measures the detection at the current position. n pieces of WiFi information including AP identity information and RSS: (MAC1, RSS1), (MAC2, RSS2), ..., (MACn, RSSn), remove m pieces of RSS less than the preset value from the n pieces of WiFi information WiFi information, in the remaining n-m pieces of WiFi information, count the floors corresponding to the identity information of each AP, and take the floor with the highest floor frequency as the floor where the mobile terminal is located, m and n are integers greater than 1, and n>m. For example, since the location of each AP is fixed, the floor corresponding to the AP's identity information is also fixed. Assume that the remaining 4 WiFi information (MAC1, RSS1), (MAC2, RSS2), (MAC3, RSS3) and ( MAC4, RSS4), the floor corresponding to MAC1 is L5, the floor corresponding to MAC2 is L5, the floor corresponding to MAC3 is L6, and the floor corresponding to MAC4 is L7. It can be seen that the floor frequency of L5 is 2, which is the maximum value, so determine The floor where the mobile terminal is located is L5. After determining the target floor where the mobile terminal is located, multiple APs in the target floor are used to determine the coordinates of the mobile terminal on the target floor through WiFi positioning. The principle and process of WiFi positioning are not repeated here. The identity information of the AP includes but does not display the MAC address, and may also be other identifiers that uniquely identify the identity of the AP. The mobile terminal in the embodiment of the present invention includes a first mobile terminal and a second mobile terminal.

S204. The positioning server plans an optimal path between the first location and the second location according to a preset route planning algorithm.

Specifically, the first position and the second position can be represented by the floor and coordinates, and the positioning server determines whether the first mobile terminal and the second mobile terminal are on the same floor, if not, and the floor difference between the two floors is less than a preset When the value is set, the positioning server needs to consider going through the stairs to reach the second position when planning the route, otherwise it is a mandatory option for the positioning server to go through the elevator when planning the route.

S205. The positioning server displays the first position, the second position and the optimal path on the first mobile terminal.

Specifically, the positioning server pushes the first position, the second position and the optimal path to the first mobile terminal, and since the first mobile terminal and the second mobile terminal are in an active state, the positioning server updates the first position and the second position in real time, and The path between the first and second locations is adjusted in real time to save the user search time.

Implementing the embodiment of the present invention, the first mobile terminal obtains the identity information of the target medical staff, the location server queries the device identification of the second mobile terminal corresponding to the identification information, and determines the location of the second mobile terminal and the first mobile terminal according to the device identification. position, plan the optimal path of the first position and the second position, and display the position of the first mobile terminal, the position of the second mobile terminal and the optimal path on the first mobile terminal, so that the user can quickly find the Medical staff, user-friendly.

Optionally, the identity information of the target medical staff obtained by the first mobile terminal includes:

The first mobile terminal obtains the identity information through the name or job number of the target medical staff input by the user; or

The first mobile terminal obtains the identity information by scanning the avatar or QR code of the target medical staff; or

The first mobile terminal receives the medical staff list broadcasted by the positioning server, and obtains the identity information by receiving a selection instruction from the user to select a target medical staff member in the medical staff list.

Specifically, the user inputs the name and/or work number of the target medical staff through the touch screen or keyboard of the first mobile terminal, and the first mobile terminal obtains the identity information of the target medical staff through the input name and/or work number; The terminal scans the avatar of the target medical staff through the camera to obtain an image, which is used as the identity information of the target medical staff, or scans the QR code of the target medical staff, decodes the QR code image and obtains the identity information. The location server broadcasts the medical staff list in APs in different areas. When the first mobile terminal is within the coverage of the AP, it receives and displays the medical staff list pushed by the AP. The user selects the target medical staff in the medical staff list and obtains the identity information , where the list of medical staff can be divided by department.

Optionally, the sending the identity information and the first device identifier of the first mobile terminal to the positioning server includes:

The first mobile terminal measures the link quality parameters with each surrounding AP, and sends the identity information and the first device identifier to the positioning server through the AP with the optimal link quality parameter.

Specifically, the first mobile terminal measures link quality parameters between surrounding APs, the link quality parameters are used to indicate the link status between the first mobile terminal and the AP, and the link quality parameters include RSS, RSRP or RSRP When the first mobile terminal needs to report the identity information and the first device identification to the positioning server, the AP with the optimal link quality parameter is selected from the detected multiple APs, and the identity information and the first device are passed through the AP. A device identification is sent to the positioning server, which can ensure the reliability and transmission rate of data transmission.

Optionally, determining, by the positioning server, the first location of the first mobile terminal according to the first device identifier includes:

The positioning server receives the WiFi information reported by the first mobile terminal; wherein the WiFi information includes RSS and AP identification information

The positioning server determines a first position of the first mobile terminal according to the WiFi information; wherein the first position includes a floor where the first mobile terminal is located and coordinates in the floor.

Specifically, the first mobile terminal reports the WiFi information measured at the current location, the WiFi information includes the RSS of the AP detected by the first mobile terminal and the identification information of the AP, and the distance between the mobile terminal and the AP of the positioning server is negatively correlated with the RSS The closer the distance is, the greater the RSS, and the farther the distance is, the smaller the RSS. The mobile terminal measures the n pieces of WiFi information detected at the current location including the AP's identity information and RSS: (MAC1, RSS1), (MAC2, RSS2), ..., (MACn, RSSn), remove m pieces of WiFi information whose RSS is less than the preset value from n pieces of WiFi information, in the remaining n-m pieces of WiFi information, count the floors corresponding to the identity information of each AP, and calculate the floor frequency The highest floor is used as the floor where the mobile terminal is located. For example, since the location of each AP is fixed, the floor corresponding to the AP's identity information is also fixed. Assume that the remaining 4 WiFi information (MAC1, RSS1), (MAC2, RSS2), (MAC3, RSS3) and ( MAC4, RSS4), the floor corresponding to MAC1 is L5, the floor corresponding to MAC2 is L5, the floor corresponding to MAC3 is L6, and the floor corresponding to MAC4 is L7. It can be seen that the floor frequency of L5 is 2, which is the maximum value, so determine The floor where the mobile terminal is located is L5. After determining the target floor where the mobile terminal is located, multiple APs in the target floor are used to determine the coordinates of the mobile terminal on the target floor through WiFi positioning. The principle and process of WiFi positioning are not repeated here. Among them, the identity information of the AP includes but does not display the MAC address, and can also be other identifiers that uniquely identify the identity of the AP

Optionally, the determining the second location of the second mobile terminal according to the second device identifier includes:

obtaining, by the positioning server, the AP last accessed by the second mobile terminal;

The positioning server instructs the last visited AP to search for the second mobile terminal, and judges whether the last visited AP finds the second mobile terminal; A visited AP establishes a communication link with the second mobile terminal and determines the second location of the second mobile terminal; if no, the positioning server instructs all APs to search for the second mobile terminal, and determines whether The second mobile terminal is queried, and if yes, the positioning server determines the second location of the second mobile terminal.

Specifically, before the positioning server locates the second mobile terminal, it must first determine which AP the second mobile terminal is covered by. When the second mobile terminal establishes a communication connection with the AP, the positioning server obtains the information to establish communication with the second mobile terminal. The identity information of the connected AP, when the second mobile terminal switches to another AP to establish a communication connection with another AP, the positioning server updates the identity information of the AP to the identity information of the other AP. When the positioning server locates the second mobile terminal, it obtains the AP that the second mobile terminal visited last time (that is, the communication connection is established), instructs the AP to search for the second mobile terminal, and the AP broadcasts the second device identifier that carries the second mobile terminal. If the second mobile terminal is within the coverage of the AP, the second mobile terminal will receive the broadcast message, parse the broadcast message to obtain the second device identifier, initiate a connection request to the AP, and establish communication with the AP The second mobile terminal reports the WiFi information measured at the current position to the positioning server through the communication connection, and the positioning server determines the floor and the coordinates in the floor where the second mobile terminal is located through the WiFi information reported by the second mobile terminal.

If the AP visited last time does not receive the connection request sent by the second mobile terminal within the preset time period, it indicates that the second mobile terminal is not within its coverage, and the AP visited last time returns to the positioning server indicating that the second mobile terminal is not in the coverage area. The prompt message of its own service area, the positioning server instructs multiple APs it belongs to to find the second mobile terminal, multiple APs will broadcast a broadcast message carrying the identification of the second device, and the second mobile terminal may receive multiple APs at the same location Send a broadcast message. At this time, the second mobile terminal will select the AP with the best link quality parameter to establish a communication connection. The second mobile terminal will report the measured WiFi information to the positioning server through the established communication connection, and the positioning server will report the WiFi information through the second mobile terminal. The WiFi information of the second mobile terminal determines the floor where the second mobile terminal is located and the coordinates of the floor where the second mobile terminal is located.

Optionally, in order to further optimize the process of searching for the second mobile terminal, the positioning server may first instruct the AP in the floor where the second mobile terminal was last to search for the second mobile terminal, and if not found, then instruct all APs to search for the second mobile terminal. the second mobile terminal.

Optionally, the method further includes:

If all APs do not find the second mobile terminal, the positioning server returns a prompt message indicating that the target medical staff is offline to the first mobile terminal.

Specifically, if the second mobile terminal is not covered by all APs, the positioning server cannot find the second mobile terminal, and the positioning server pushes a prompt message indicating that the target medical staff is offline to the second mobile terminal.

Referring to FIG. 3 , it is a schematic structural diagram of a positioning server according to an embodiment of the present invention. The positioning server includes: a receiving module 301 , a query module 302 , a positioning module 303 , a planning module 304 , and a pushing module 305 .

The receiving module 301 is configured to receive the identity information of the target medical staff and the first device identifier of the first mobile terminal sent by the first mobile terminal.

The query module 302 is configured to query the second device identifier of the second mobile terminal corresponding to the identity information.

The positioning module 303 determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification.

The planning module 304 is configured to plan an optimal path between the first position and the second position according to a preset route planning algorithm.

A push module 305, configured to display the first position, the second position and the optimal path on the first mobile terminal.

Optionally, the positioning module 303 is used for:

Receive WiFi information reported by the first mobile terminal; wherein, the WiFi information includes RSS and AP identification information

A first location of the first mobile terminal is determined according to the WiFi information; wherein, the first location includes a floor where the first mobile terminal is located and coordinates in the floor.

Optionally, the positioning module is used for:

acquiring the AP accessed last time by the second mobile terminal;

Instruct the last visited AP to search for the second mobile terminal, determine whether the last visited AP finds the second mobile terminal, and if so, pass the last visited AP and the first mobile terminal. Two mobile terminals establish a communication link and determine the second location of the second mobile terminal; if no, instruct all APs to search for the second mobile terminal, and determine whether the second mobile terminal is found, if yes , and determine the second position of the second mobile terminal.

Optionally, the positioning server further includes:

A prompting module, configured to return a prompting message indicating that the target medical staff is out to the first mobile terminal if all APs do not find the second mobile terminal.

The embodiments of the present invention and method embodiments are based on the same concept, and the technical effects brought by them are also the same. For specific principles, please refer to the description of the method embodiment 1, which will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. During execution, the processes of the embodiments of the above-mentioned methods may be included. Among them, the storage medium can be a disk, disc, only read-only memory (ROM) or random storage memory (RAM).

The above disclosure is only a preferred embodiment of the present invention, and of course, it cannot limit the scope of rights of the present invention. Those of ordinary skill in the art can understand that all or part of the process for realizing the above-mentioned embodiment can be realized according to the rights of the present invention. The equivalent changes required to be made still belong to the scope covered by the invention.

Claims (18)

1. a medical staff search method based on indoor, is characterized in that, comprises: The first mobile terminal acquires the identity information of the target medical staff, and sends the identity information and the first device identifier of the first mobile terminal to the positioning server; The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information; The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification; The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm; The positioning server displays the first position, the second position and the optimal path on the first mobile terminal; The determining, by the positioning server, the first location of the first mobile terminal according to the first device identifier includes: the positioning server receiving the Wi-Fi information reported by the first mobile terminal; wherein, the WiFi The information includes the received signal strength RSS and the identification information of the AP; the positioning server determines the first position of the first mobile terminal according to the WiFi information; wherein, the first position includes the floor where the first mobile terminal is located and the coordinates in the floor. 2. The method according to claim 1, wherein the acquisition of the identity information of the target medical staff by the first mobile terminal comprises: The first mobile terminal obtains the identity information through the name or job number of the target medical staff input by the user; or The first mobile terminal obtains the identity information by scanning the avatar or QR code of the target medical staff; or The first mobile terminal receives the medical staff list broadcasted by the positioning server, and obtains the identity information by receiving a selection instruction from the user to select a target medical staff member in the medical staff list. 3. The method according to claim 1, wherein the sending the identity information and the first device identification of the first mobile terminal to a positioning server comprises: The first mobile terminal measures the link quality parameters with each surrounding wireless access point AP, and sends the identity information and the first device identification to the positioning device through the AP with the best link quality parameter server. 4. The method of claim 1, wherein the determining the second location of the second mobile terminal according to the second device identifier comprises: obtaining, by the positioning server, the AP last accessed by the second mobile terminal; The positioning server instructs the last visited AP to search for the second mobile terminal, and judges whether the last visited AP finds the second mobile terminal; A visited AP establishes a communication link with the second mobile terminal and determines the second location of the second mobile terminal; if no, the positioning server instructs all APs to search for the second mobile terminal, and determines whether The second mobile terminal is queried, and if yes, the positioning server determines the second location of the second mobile terminal. 5. The method of claim 4, further comprising: If all APs do not find the second mobile terminal, the positioning server returns a prompt message indicating that the target medical staff is offline to the first mobile terminal. 6. A positioning server, characterized in that, comprising: a receiving module, configured to receive the identity information of the target medical staff sent by the first mobile terminal and the first device identifier of the first mobile terminal; a query module, configured to query the second device identifier of the second mobile terminal corresponding to the identity information; a positioning module, for determining a first position of the first mobile terminal according to the first device identification, and determining a second position of the second mobile terminal according to the second device identification; a planning module, configured to plan an optimal path between the first position and the second position according to a preset route planning algorithm; a push module, configured to display the first position, the second position and the optimal path on the first mobile terminal; Wherein, determining the first location of the first mobile terminal by the positioning module according to the first device identifier includes: Receive WiFi information reported by the first mobile terminal; wherein, the WiFi information includes RSS and AP identification information; A first location of the first mobile terminal is determined according to the WiFi information; wherein, the first location includes a floor where the first mobile terminal is located and coordinates in the floor. 7. The positioning server according to claim 6, wherein the positioning module determines the second position of the second mobile terminal according to the second device identifier, comprising: acquiring the AP accessed last time by the second mobile terminal; Instruct the last visited AP to search for the second mobile terminal, determine whether the last visited AP finds the second mobile terminal, and if so, pass the last visited AP and the first mobile terminal. Two mobile terminals establish a communication link and determine the second location of the second mobile terminal; if no, instruct all APs to search for the second mobile terminal, and determine whether the second mobile terminal is found, if yes , and determine the second position of the second mobile terminal. 8. The positioning server of claim 7, further comprising: A prompting module, configured to return a prompting message indicating that the target medical staff is out to the first mobile terminal if all APs do not find the second mobile terminal. 9. An indoor-based medical staff search system, comprising: a first mobile terminal, a second mobile terminal, multiple APs and a positioning server, the positioning server establishing a communication connection with the multiple APs; wherein , The first mobile terminal obtains the identity information of the target medical staff; and sends the identity information and the first device identification of the first mobile terminal to the positioning server through the AP with the optimal link quality parameter among the multiple APs; The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information; The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification; The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm; The positioning server displays the first position, the second position and the optimal path on the first mobile terminal; The determining of the first location of the first mobile terminal according to the first device identifier includes: receiving, by the positioning server, Wi-Fi information reported by the first mobile terminal; wherein the WiFi information includes: Receive signal strength RSS and identification information of AP; determine the first position of the first mobile terminal according to the WiFi information; wherein, the first position includes the floor where the first mobile terminal is located and the coordinate. 10. An indoor-based medical staff search system, comprising: a first mobile terminal, a second mobile terminal, multiple APs, and a positioning server, wherein the positioning server establishes a communication connection with the multiple APs; wherein , The first mobile terminal obtains the identity information of the target medical staff; and sends the identity information and the first device identification of the first mobile terminal to the positioning server through the AP with the optimal link quality parameter among the multiple APs; The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information; The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification; The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm; The positioning server displays the first position, the second position and the optimal path on the first mobile terminal; in, The determining of the second location of the second mobile terminal according to the second device identifier includes: acquiring the AP accessed last time by the second mobile terminal; Instruct the last visited AP to search for the second mobile terminal, and determine whether the last visited AP finds the second mobile terminal, and if so, the positioning server uses the last visited AP to search for the second mobile terminal. Establish a communication link with the second mobile terminal and determine the second location of the second mobile terminal; if no, the positioning server instructs all APs to search for the second mobile terminal, and determines whether the query is found The second mobile terminal, if yes, the positioning server determines the second location of the second mobile terminal. 11. An indoor-based medical staff search method, characterized in that, comprising: The first mobile terminal acquires the identity information of the target medical staff, and sends the identity information and the first device identifier of the first mobile terminal to the positioning server; The positioning server queries the second device identifier of the second mobile terminal corresponding to the identity information; The positioning server determines a first position of the first mobile terminal according to the first device identification, and determines a second position of the second mobile terminal according to the second device identification; The positioning server plans an optimal path between the first position and the second position according to a preset route planning algorithm; The positioning server displays the first position, the second position and the optimal path on the first mobile terminal; Wherein, the determining the second location of the second mobile terminal according to the second device identifier includes: obtaining, by the positioning server, the AP last accessed by the second mobile terminal; The positioning server instructs the last visited AP to search for the second mobile terminal, and judges whether the last visited AP finds the second mobile terminal; A visited AP establishes a communication link with the second mobile terminal and determines the second location of the second mobile terminal; if no, the positioning server instructs all APs to search for the second mobile terminal, and determines whether The second mobile terminal is queried, and if yes, the positioning server determines the second location of the second mobile terminal. 12. The method according to claim 11, further comprising: if all APs do not find the second mobile terminal, the positioning server returns a message indicating the target medical staff to the first mobile terminal Offline reminder message. 13. The method according to claim 11, wherein the acquiring, by the first mobile terminal, the identity information of the target medical staff comprises: The first mobile terminal obtains the identity information through the name or job number of the target medical staff input by the user; or The first mobile terminal obtains the identity information by scanning the avatar or QR code of the target medical staff; or The first mobile terminal receives the medical staff list broadcasted by the positioning server, and obtains the identity information by receiving a selection instruction from the user to select a target medical staff member in the medical staff list. 14. The method according to claim 11, wherein the sending the identity information and the first device identification of the first mobile terminal to a positioning server comprises: The first mobile terminal measures the link quality parameters with each surrounding wireless access point AP, and sends the identity information and the first device identification to the positioning device through the AP with the best link quality parameter server. 15. A positioning server, comprising: a receiving module, configured to receive the identity information of the target medical staff sent by the first mobile terminal and the first device identifier of the first mobile terminal; a query module, configured to query the second device identifier of the second mobile terminal corresponding to the identity information; a positioning module, for determining a first position of the first mobile terminal according to the first device identification, and determining a second position of the second mobile terminal according to the second device identification; a planning module, configured to plan an optimal path between the first position and the second position according to a preset route planning algorithm; a push module, configured to display the first position, the second position and the optimal path on the first mobile terminal; Wherein, the positioning module determines the second location of the second mobile terminal according to the second device identifier, including: acquiring the AP accessed last time by the second mobile terminal; Instruct the last visited AP to search for the second mobile terminal, determine whether the last visited AP finds the second mobile terminal, and if so, pass the last visited AP and the first mobile terminal. Two mobile terminals establish a communication link and determine the second location of the second mobile terminal; if no, instruct all APs to search for the second mobile terminal, and determine whether the second mobile terminal is found, if yes , and determine the second position of the second mobile terminal. 16. The positioning server of claim 15, further comprising: A prompting module, configured to return a prompting message indicating that the target medical staff is out to the first mobile terminal if all APs do not find the second mobile terminal. 17. A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, and the computer program is used to instruct relevant hardware to complete any one of claims 1 to 5. method described. 18. A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, and the computer program is used to instruct relevant hardware to complete any one of claims 11 to 14. method described.