A semi-automatic mobile broadcasting system and method for airports based on multi-sided positioning

Abstract

This invention discloses a semi-automatic airport mobile broadcasting system and method based on multi-sided positioning, comprising: RFID tags, a mobile terminal, airport public broadcasting facilities, and a server. Several RFID tags are installed in the passenger activity area of ​​the airport terminal to transmit RFID tag signals. The mobile terminal has an RFID reader function to receive the RFID tag signals, send the location information of the RFID tags to the server, display regional flight dynamics information and regional broadcast dynamics information, and send broadcasting requests to the server. The advantages of this invention are: achieving distributed and precise regional broadcasting, optimizing the airport broadcasting process, reducing the ineffectiveness of indiscriminate broadcasting caused by large-scale airport broadcasting, optimizing service personnel allocation, thereby improving the work efficiency of airport service personnel and flight support efficiency, and providing passengers with a greener and more humane service.

Description

Technical Field

[0001] This invention relates to the field of airport broadcasting system technology, and more particularly to an airport mobile semi-automatic broadcasting system and method based on multilateral positioning. Background Technology

[0002] As a crucial operational function of airports, the level of automation in airport public address systems has been greatly improved. Currently, airport public address systems can generally achieve fully automated playback of flight-related announcements, such as announcements of boarding commencement, boarding reminders, transit boarding, flight delays, and flight cancellations.

[0003] However, the existing broadcast logic playback area is too large. With the significant increase in the number of flights and passengers each year, this leads to the ineffectiveness of indiscriminate broadcasts, causing significant noise interference for passengers and greatly affecting their service experience. On the other hand, too few flight service broadcasts would affect the efficiency of flight operations.

[0004] Currently, most airports have broadcasting rooms, where gate ground staff use internal telephones to notify the broadcasting room to make announcements, or supplement them manually using handheld microphones or small loudspeakers. This workflow significantly increases the workload of broadcasting room staff and other service personnel as flight operations become busier. Furthermore, as airport throughput increases, the workload of the broadcasting room multiplies, and gate-based service announcements are prone to errors and omissions. Moreover, because gate staff lack professional broadcasting training, some staff members have regional accents, thus reducing the passenger experience. Therefore, optimizing airport broadcasting workflows, more effectively reducing the ineffectiveness of large-scale airport announcements, improving the efficiency of airport staff, and providing passengers with greener and more humane services are issues that smart airports are focusing on in recent years. Summary of the Invention

[0005] This application provides a mobile semi-automatic airport broadcasting system and method based on multilateral positioning, which solves the technical problems of ineffective large-area airport broadcasting and reduced work efficiency due to increased workload in broadcasting rooms. It realizes distributed and precise regional broadcasting, optimizes the airport broadcasting business process, reduces the ineffectiveness of indiscriminate broadcasting caused by large-area airport broadcasting, optimizes service personnel configuration, thereby improving the work efficiency of airport service personnel and flight support efficiency, and providing passengers with greener and more humane services.

[0006] This application provides an airport mobile semi-automatic broadcasting system based on multi-sided positioning, including: RFID tags, a mobile terminal, airport public broadcasting facilities, and a server.

[0007] The mobile terminal has an RFID reader function, which is used to receive the RFID tag signal, send the location information of the RFID tag to the server, display regional flight dynamic information and regional broadcast dynamic information, and send a broadcast release request to the server;

[0008] The airport public address system is used for playing broadcast audio. There are several airport public address systems distributed in various areas of the airport. Each airport public address system is equipped with a unique identifier, which is associated with flight dynamic information. The associated airport public address system is determined by the flight dynamic information.

[0009] The server determines the location of the mobile terminal based on the location information of the RFID tag and the physical area of ​​the public broadcasting facility set within the server, and sends the location information to the mobile terminal; the server processes and analyzes the information according to the broadcasting request sent by the mobile terminal, obtains the identification information of the associated airport public broadcasting facility, and synthesizes the processed information into a broadcast audio file and sends it to the airport public broadcasting facility that has the identification.

[0010] In a preferred embodiment of this application, the server includes a positioning server, an application server, a synthesis server, and an interface server;

[0011] The positioning server calculates the location of the mobile device using a multi-directional positioning algorithm based on the location information of the RFID tag and sends the mobile device location information to the application server.

[0012] The application server determines the location of the mobile terminal based on the mobile terminal's location information and the physical area of ​​the public broadcasting facility set within the application server, and sends the location information to the mobile terminal; the application server processes and analyzes the information based on the mobile terminal's broadcasting request, obtains the identification information of the associated airport public broadcasting facility, and sends the processed information and the identification information of the airport public broadcasting facility together to the synthesis server.

[0013] The synthesis server is used to synthesize the processed information into a broadcast audio file, and send the broadcast audio file to the airport public broadcast facility that has the identification information sent by the application server.

[0014] The interface server connects to external systems to obtain flight status information.

[0015] In a preferred embodiment of this application, the server further includes a data server, which is connected to the positioning server, the application server, and the interface server respectively, for storing and retrieving data.

[0016] As a preferred embodiment of this application, the airport mobile semi-automatic broadcasting system based on multi-lateral positioning further includes a management client, which is connected to the server and is used to acquire and display flight dynamic information, broadcast dynamic information, and the real-time location of the user holding the mobile terminal.

[0017] This application also provides a method for airport mobile semi-automatic broadcasting based on multi-sided positioning, including:

[0018] Step 1, Receive multiple RFID tag signals: The mobile terminal with RFID reader function receives multiple RFID tag signals during movement and sends the location information of multiple RFID tags to the positioning server;

[0019] Step 2, determine the current location of the mobile terminal: After receiving the location information of multiple RFID tags, the positioning server calculates the current location of the mobile terminal using the multilateral positioning algorithm, and sends the current location of the mobile terminal to the application server;

[0020] The RFID tag location information includes the RFID tag location coordinates, the RFID tag number, the RFID reader number, and the distance from the mobile device to the RFID tag;

[0021] Step 3, determine the current regional location of the mobile terminal: The application server determines the current regional location of the mobile terminal based on the current location information of the mobile terminal and the physical area of ​​the broadcast public facility set in the application server, and sends the regional location information to the mobile terminal and the management client respectively;

[0022] Step 4, determine if the current location of the mobile device has changed: After receiving the current location information of the mobile device, the mobile device stores and displays it locally, and compares it with the location of the mobile device stored previously to determine if the current location of the mobile device has changed. If the current location of the mobile device has changed, the mobile device will give a prompt "Change region?" and the user can choose whether to change the region according to the prompt.

[0023] Step 5, the mobile terminal triggers broadcast release: As needed on site, the user holding the mobile terminal sends a request to the application server to release a standard flight service broadcast through the regional flight dynamic information displayed on the mobile terminal. After receiving the request, the application server processes and analyzes the information, obtains the identifier of the associated airport public broadcasting facility, and sends the processed information and the identifier information of the airport public broadcasting facility to the synthesis server. After receiving the information, the synthesis server synthesizes the processed information into a broadcast audio file and sends the broadcast audio file to the airport public broadcasting facility with the identifier through the network for regional playback.

[0024] Step 6: The management client obtains information parameters from the application server: The application server communicates with the management client in real time, and the application server transmits the current location of the mobile device, flight status information, and broadcast status information to the management client in real time.

[0025] As a preferred embodiment of this application, step 2 specifically comprises:

[0026] Step 201: Select the information of the four RFID tags that are closest to the location of the mobile terminal from the received location information of the multiple RFID tags;

[0027] The selection rule for the RFID tags is as follows: while ensuring that there are 4 RFID tags participating in the calculation, the data of the RFID tags with a distance greater than 3.5m are removed;

[0028] Step 202: Then, the current location of the mobile terminal is calculated using the polygonal positioning calculation method;

[0029] The calculation process of the multilateral positioning calculation method is as follows:

[0030] First, let the known coordinates of the four RFID tags be (x1, y1), (x2, y2), (x3, y3), and (x4, y4), and let the unknown coordinates of the mobile terminal be (x, y). Let the distances between the positions of the four RFID tags and the position of the mobile terminal be r1, r2, r3, and r4, respectively. Then, establish a system of equations.

[0031]

[0032] Then, by subtracting the fourth equation from the first, second, and third equations, we obtain the linearized equation of Ax = b, where...

[0033]

[0034] The final solution is x = (A) T A) -1 A T b. Finally, calculate the coordinates of the mobile device's current location.

[0035] In a preferred embodiment of this application, the distance from the mobile terminal to the RFID tag is calculated by the RFID reader in the mobile terminal based on signal attenuation.

[0036] As a preferred embodiment of this application, step 4 specifically comprises:

[0037] Step 401: The application server periodically sends the current location information of the mobile terminal to the mobile terminal. When the mobile terminal receives the current location information for the first time, it stores and displays the location information. The mobile terminal also automatically sends a request for flight status information of the region to the application server. After receiving the flight status information of the region, the mobile terminal stores and displays the flight status information of the region.

[0038] Step 402: After the mobile terminal receives the current location information of the mobile terminal for the second time, the mobile terminal compares the new location information with the previously received location information. If they are inconsistent, the mobile terminal prompts "Change region?".

[0039] If a user holding the mobile device selects "Change Region" as prompted, the mobile device automatically requests flight status information after the region change from the application server. After receiving the request, the application server processes it internally and sends the flight status information after the region change back to the mobile device. If a user holding the mobile device selects "Do Not Change Region" as prompted, the mobile device will not request flight status information from the application server.

[0040] As a preferred embodiment of this application, the application server sends the current location information of the mobile terminal to the mobile terminal every 5 seconds or 10 seconds.

[0041] In a preferred embodiment of this application, the specific operation of obtaining the associated identification information of the airport public broadcasting facility in step 5 is as follows: the identification of the airport public broadcasting facility is associated with flight dynamic information. When a user holding the mobile terminal publishes a flight service broadcast request to the application server based on the regional flight dynamic information, the application server obtains the associated identification information of the airport public broadcasting facility based on the received flight dynamic information.

[0042] One or more technical solutions provided in the embodiments of this application have at least the following technical effects:

[0043] 1. This invention involves installing several RFID tags within the passenger activity area of ​​an airport terminal. A mobile device with RFID reading capability reads the location information of these tags. The server uses a multilateral positioning algorithm to locate the mobile device based on the RFID tag location information and combines this with the physical area defined by the public address system within the server to determine the mobile device's location. This allows the mobile device to access flight information for that area. Based on actual work needs, flight service personnel using handheld mobile devices broadcast flight information for their current location. This information is then linked to flight dynamics information via markers within the airport's public address system, achieving distributed and precise regional broadcasting. This optimizes the semi-automatic broadcasting process, reduces the ineffectiveness of indiscriminate broadcasts caused by large-scale airport broadcasts, optimizes personnel allocation, and delegates semi-automatic broadcasting operations to frontline service personnel, improving the efficiency of manual broadcasting and flight support.

[0044] 2. This invention sends flight service broadcast requests from mobile devices to the server. After the server processes and analyzes the information, it synthesizes the processed information into a broadcast audio file, thereby eliminating the phenomenon of inconsistent accents, improving the passenger service experience, and providing passengers with a greener and more humane service.

[0045] 3. This invention optimizes the airport semi-automatic broadcasting process by integrating a multilateral positioning algorithm with RFID tags and mobile terminals. It changes the semi-automatic triggering of flight service broadcasts from a centralized broadcasting room mode to a distributed area broadcasting mode by on-site personnel. This greatly reduces the workload of broadcasting service personnel, reduces on-site staff's waiting time and error occurrences, and allows airport service personnel to shift their focus from tedious waiting processes to serving on-site passengers, thereby improving the work efficiency and operational level of airport service personnel.

[0046] 4. This invention connects the server and the management client, enabling the management client to display the location of service personnel, flight status information, and broadcast status information on the mobile device it holds in real time. This facilitates the effective scheduling of service personnel, thereby optimizing the allocation of service personnel and improving work efficiency. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of an airport mobile semi-automatic broadcasting system based on multi-sided positioning according to Embodiment 1 of this application;

[0048] Figure 2 This is a schematic diagram of the mobile terminal location data flow in Embodiment 1 of this application;

[0049] Figure 3 This is a second embodiment of the present application, which describes a process for a mobile semi-automatic broadcasting provider at an airport based on multi-sided positioning. Detailed Implementation

[0050] To make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention will be further described below with reference to specific illustrations. In the description of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection between the internal parts of two components.

[0051] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0052] like Figure 1-3 As shown, this invention relates to an airport mobile semi-automatic broadcasting system based on multi-directional positioning, comprising: RFID tags, a mobile terminal, airport public broadcasting facilities, and a server.

[0053] Several RFID tags are installed in the passenger activity area of ​​the airport terminal to send RFID tag signals;

[0054] The mobile device has an RFID reader function, which is used to receive RFID tag signals, send the location information of RFID tags to the server, display regional flight dynamic information and regional broadcast dynamic information, and send broadcast release requests to the server;

[0055] The location information of an RFID tag includes the tag number, reader number, and distance between the mobile device and the tag. The distance between the mobile device and the tag is calculated by the RFID reader in the mobile device based on signal attenuation.

[0056] Airport public address systems are used for broadcasting audio. There are several airport public address systems distributed throughout the airport. Each airport public address system has a unique identifier, which is associated with flight status information. The associated airport public address system is identified through flight status information.

[0057] The server determines the mobile terminal's location based on the RFID tag's location information and the physical area of ​​the public address system set within the server, and sends the mobile terminal's location information to the mobile terminal. Based on the broadcast request sent by the mobile terminal, the server processes and analyzes the information, which is specifically flight broadcast parameters, and obtains the identification information of the associated airport public address system through this information. The server then synthesizes the processed information into a broadcast audio file and sends the broadcast audio file to the airport public address system that has the identification.

[0058] The specific steps for linking airport public address system signage with flight status information are as follows:

[0059] On the server side, the identifiers of airport public address systems are bound to different zones based on the physical areas of the public address systems set within the server. At the same time, flight status information is automatically bound to different zones based on the content of the boarding gate, the content of the check-in counter, and the physical areas of the public address systems set within the server. Finally, by matching the identifiers of the airport public address systems bound to each zone with the flight status information, the association between flight status information and airport public address system identifiers is achieved.

[0060] The server-side includes a location server, an application server, a synthesis server, an interface server, and a data server.

[0061] The positioning server communicates in real time with a mobile terminal with RFID reading function. The positioning server receives the location information of multiple RFID tags sent by the mobile terminal. Based on the location information of the RFID tags, the positioning server calculates the location of the mobile terminal using a multilateral positioning algorithm and sends the location information of the mobile terminal to the application server.

[0062] The application server determines the mobile device's location based on the mobile device's location information and the physical area of ​​the broadcast public facilities set within the application server, and sends the mobile device's location information to the mobile device through a message component.

[0063] The regional location information sent by the application server to the mobile device includes the mobile device's ID, the physical coordinates of the mobile device's region, and information about the broadcast region.

[0064] The application server is also used to process and analyze information based on the broadcast publishing request from the mobile terminal. This information is specifically flight broadcast parameters. It also obtains the identification information of the associated airport public address system through this information and sends the processed information and the identification information of the airport public address system to the synthesis server.

[0065] The synthesis server is used to synthesize the processed information into a broadcast audio file, and send the broadcast audio file to the airport public broadcast facility that has the identification information sent by the application server.

[0066] The interface server connects to external systems to obtain flight status information;

[0067] The external system is a production and operation system or other flight dynamic management system;

[0068] The data server is used to receive and store data from servers connected to it, so that subsequent servers connected to the data server can retrieve historical data. The data server is connected to the positioning server, application server, and interface server respectively.

[0069] An airport mobile semi-automatic broadcasting system based on multi-side positioning also includes a management client, which is connected to the server to obtain and display flight dynamic information, broadcast dynamic information, and the real-time location of handheld mobile users.

[0070] The management client is connected to the application server in the server. The application server sends the mobile device's regional location, flight status information, and broadcast status information to the management client through the message component. This allows the management client to keep track of the mobile device user's location in real time, enabling effective dispatch of the mobile device user based on the on-site situation, thereby optimizing the allocation of service personnel and improving work efficiency.

[0071] The application server sends the mobile device's regional location information to the management client, including the mobile device's ID, the physical coordinates of the mobile device's region, broadcast area information, and holder information.

[0072] This invention also relates to a method for semi-automatic mobile broadcasting at airports based on multi-lateral positioning, comprising:

[0073] Step 1, Receive multiple RFID tag signals: The mobile device with RFID reader function receives multiple RFID tag signals during movement and sends the location information of multiple RFID tags to the positioning server;

[0074] Step 2, determine the current location of the mobile device: After receiving the location information of multiple RFID tags, the positioning server calculates the current location of the mobile device using the multilateral positioning algorithm, and sends the current location of the mobile device to the application server;

[0075] Specifically: Step 201, after receiving the location information of multiple RFID tags, the positioning server selects the information of the four RFID tags that are closest to the location of the mobile terminal.

[0076] The selection rule for RFID tags is as follows: while ensuring that at least 4 RFID tags are involved in the calculation, RFID tag data with a distance greater than 3.5m are removed;

[0077] Step 202: Then, the current location of the mobile device is calculated using the polygonal positioning algorithm;

[0078] The calculation process of the multilateral positioning calculation method is as follows:

[0079] First, define the known coordinates of the four RFID tags as (x1, y1), (x2, y2), (x3, y3), and (x4, y4), and the unknown coordinates of the mobile terminal as (x, y). Then, define the distances between the four RFID tags and the mobile terminal as r1, r2, r3, and r4, respectively. Finally, establish a system of equations.

[0080]

[0081] Then, by subtracting the fourth equation from the first, second, and third equations, we obtain the linearized equation of Ax = b, where...

[0082]

[0083] The final solution is x = (A) T A) -1 A T b. Finally, calculate the coordinates of the mobile device's current location.

[0084] RFID tag location information includes the RFID tag's location coordinates, the RFID tag's tag number, the RFID reader number, and the distance from the mobile device to the RFID tag;

[0085] The distance from the mobile device to the RFID tag is calculated automatically by the RFID reader in the mobile device based on signal attenuation.

[0086] Step 3, determine the current location of the mobile device: The application server determines the current location of the mobile device based on the current location information of the mobile device and the physical area of ​​the broadcast public facilities set in the application server, and sends the current location information of the mobile device to the mobile device and the management client respectively.

[0087] The regional location information sent by the application server to the mobile device includes the mobile device's ID, the physical coordinates of the mobile device's region, and information about the broadcast region.

[0088] The application server sends the mobile device's regional location information to the management client, including the mobile device's ID, the physical coordinates of the mobile device's region, broadcast area information, and holder information.

[0089] Step 4, determine if the current location of the mobile device has changed: After receiving the current location information of the mobile device, the mobile device stores and displays it locally, and compares it with the location of the mobile device stored in the previous time to determine if the current location of the mobile device has changed. If the current location of the mobile device has changed, the mobile device will give a prompt "Change region?", and the user can choose whether to change the region according to the prompt.

[0090] Specifically: Step 401, the application server periodically sends the mobile terminal's current location information to the mobile terminal. When the mobile terminal receives the mobile terminal's current location information for the first time, it stores and displays the mobile terminal's current location information. The mobile terminal also automatically sends a request for flight status information of the mobile terminal's current location to the application server. After receiving the flight status information of the mobile terminal's current location, the mobile terminal stores and displays the flight status information of the area.

[0091] The application server sends the mobile device's current location information to the mobile device every 5 or 10 seconds.

[0092] Step 402: After the mobile terminal receives the current location information of the mobile terminal for the second time, the mobile terminal compares the new location information with the previously received location information. If they are inconsistent, the mobile terminal will give a prompt "Do you want to change the region?".

[0093] If a mobile user selects "Change Region" as prompted, the mobile device will automatically request flight status information after the region change from the application server. After receiving the request, the application server will process it internally and send the flight status information after the region change back to the mobile device.

[0094] If a mobile user selects "Do not change region" as prompted, the mobile device will not request flight status information from the application server.

[0095] Step 5, Mobile Terminal Triggered Broadcast: Based on on-site needs, users holding mobile terminals select relevant parameters through the regional flight dynamic information displayed on the mobile terminal and send a request to the application server to publish a standard flight service broadcast. After receiving the request, the application server processes and analyzes the information, obtains the identifier of the associated airport public broadcasting facility, and sends the processed information and the identifier information of the airport public broadcasting facility to the synthesis server. After receiving the information, the synthesis server synthesizes the processed information into a broadcast audio file and sends the broadcast audio file to the airport public broadcasting facility with the identifier through the network for regional playback.

[0096] The specific operation for obtaining the identification information of associated airport public broadcasting facilities is as follows: the identification of airport public broadcasting facilities is associated with flight status information. When a user with a handheld mobile terminal sends a flight service broadcast request to the application server based on the regional flight status information, the application server obtains the identification information of associated airport public broadcasting facilities based on the received flight status information.

[0097] Standard flight service announcements include boarding commencement announcements, transit boarding announcements, boarding reminder announcements, and police announcements.

[0098] Step 6: The management client obtains information parameters from the application server: The application server and the management client communicate in real time. The application server transmits the current location of the mobile device, flight status information, and broadcast status information to the management client in real time, so that the management client can keep track of the location of the handheld mobile device user in real time. This facilitates the effective dispatch of the handheld mobile device user according to the on-site situation, thereby optimizing the allocation of service personnel and improving work efficiency.

[0099] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0100] 1. This invention involves installing several RFID tags within the passenger activity area of ​​an airport terminal. A mobile device with RFID reading capability reads the location information of these tags. The server uses a multilateral positioning algorithm to locate the mobile device based on the RFID tag location information and combines this with the physical area defined by the public address system within the server to determine the mobile device's location. This allows the mobile device to access flight information for that area. Based on actual work needs, flight service personnel using handheld mobile devices broadcast flight information for their current location. This information is then linked to flight dynamics information via markers within the airport's public address system, achieving distributed and precise regional broadcasting. This optimizes the semi-automatic broadcasting process, reduces the ineffectiveness of indiscriminate broadcasts caused by large-scale airport broadcasts, optimizes personnel allocation, and delegates semi-automatic broadcasting operations to frontline service personnel, improving the efficiency of manual broadcasting and flight support.

[0101] 2. This invention sends flight service broadcast requests from mobile devices to the server. After the server processes and analyzes the information, it synthesizes the processed information into a broadcast audio file, thereby eliminating the phenomenon of inconsistent accents, improving the passenger service experience, and providing passengers with a greener and more humane service.

[0102] 3. This invention optimizes the airport semi-automatic broadcasting process by integrating a multilateral positioning algorithm with RFID tags and mobile terminals. It changes the semi-automatic triggering of flight service broadcasts from a centralized broadcasting room mode to a distributed area broadcasting mode by on-site personnel. This greatly reduces the workload of broadcasting service personnel, reduces on-site staff's waiting time and error occurrences, and allows airport service personnel to shift their focus from tedious waiting processes to serving on-site passengers, thereby improving the work efficiency and operational level of airport service personnel.

[0103] 4. This invention connects the server and the management client, enabling the management client to display the location of service personnel, flight status information, and broadcast status information on the mobile device it holds in real time. This facilitates the effective scheduling of service personnel, thereby optimizing the allocation of service personnel and improving work efficiency.

[0104] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0105] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0106] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0107] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0108] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0109] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A mobile semi-automatic broadcasting system for airports based on multi-lateral positioning, characterized in that, This includes: RFID tags, mobile devices, airport public address systems, and server-side applications. The RFID tags are in multiple units and are installed in the passenger activity area of ​​the airport terminal to send RFID tag signals; The mobile terminal has an RFID reader function, which is used to receive the RFID tag signal, send the location information of the RFID tag to the server, display regional flight dynamic information and regional broadcast dynamic information, and send a broadcast release request to the server; The airport public address system is used for playing broadcast audio. There are several airport public address systems distributed in various areas of the airport. Each airport public address system is equipped with a unique identifier, which is associated with flight dynamic information. The associated airport public address system is determined by the flight dynamic information. The server determines the location of the mobile terminal based on the location information of the RFID tag and the physical area of ​​the public broadcasting facility set within the server, and sends the location information to the mobile terminal; the server processes and analyzes the information according to the broadcasting request sent by the mobile terminal, obtains the identification information of the associated airport public broadcasting facility, and synthesizes the processed information into a broadcast audio file and sends it to the airport public broadcasting facility that has the identification.

2. The airport mobile semi-automatic broadcasting system based on multi-side positioning as described in claim 1, characterized in that, The server includes a location server, an application server, a synthesis server, and an interface server. The positioning server calculates the location of the mobile device using a multi-directional positioning algorithm based on the location information of the RFID tag and sends the mobile device location information to the application server. The application server determines the location of the mobile terminal based on the mobile terminal's location information and the physical area of ​​the public broadcasting facility set within the application server, and sends the location information to the mobile terminal; the application server processes and analyzes the information based on the mobile terminal's broadcasting request, obtains the identification information of the associated airport public broadcasting facility, and sends the processed information and the identification information of the airport public broadcasting facility together to the synthesis server. The synthesis server is used to synthesize the processed information into a broadcast audio file, and send the broadcast audio file to the airport public broadcast facility that has the identification information sent by the application server. The interface server connects to external systems to obtain flight status information.

3. The airport mobile semi-automatic broadcasting system based on multi-side positioning as described in claim 2, characterized in that, The server also includes a data server, which is connected to the positioning server, the application server and the interface server respectively, for storing and retrieving data.

4. The airport mobile semi-automatic broadcasting system based on multi-lateral positioning as described in claim 1, characterized in that, The airport mobile semi-automatic broadcasting system based on multi-side positioning also includes a management client, which is connected to the server and is used to acquire and display flight dynamic information, broadcast dynamic information, and the real-time location of the user holding the mobile terminal.

5. A method for airport mobile semi-automatic broadcasting based on multi-lateral positioning as described in claims 1-4, characterized in that, include: Step 1, Receive multiple RFID tag signals: The mobile terminal with RFID reader function receives multiple RFID tag signals during movement and sends the location information of multiple RFID tags to the positioning server; Step 2, determine the current location of the mobile terminal: After receiving the location information of multiple RFID tags, the positioning server calculates the current location of the mobile terminal using the multilateral positioning algorithm, and sends the current location of the mobile terminal to the application server; The RFID tag location information includes the RFID tag location coordinates, the RFID tag number, the RFID reader number, and the distance from the mobile device to the RFID tag; Step 3, determine the current regional location of the mobile terminal: The application server determines the current regional location of the mobile terminal based on the current location information of the mobile terminal and the physical area of ​​the broadcast public facility set in the application server, and sends the regional location information to the mobile terminal and the management client respectively. Step 4, determine if the current location of the mobile device has changed: After receiving the current location information of the mobile device, the mobile device stores and displays it locally, and compares it with the location of the mobile device stored previously to determine if the current location of the mobile device has changed. If the current location of the mobile device has changed, the mobile device will give a prompt "Change region?" and the user can choose whether to change the region according to the prompt. Step 5, the mobile terminal triggers broadcast release: As needed on site, the user holding the mobile terminal sends a request to the application server to release a standard flight service broadcast through the regional flight dynamic information displayed on the mobile terminal. After receiving the request, the application server processes and analyzes the information, obtains the identifier of the associated airport public broadcasting facility, and sends the processed information and the identifier information of the airport public broadcasting facility to the synthesis server. After receiving the information, the synthesis server synthesizes the processed information into a broadcast audio file and sends the broadcast audio file to the airport public broadcasting facility with the identifier through the network for regional playback. Step 6: The management client obtains information parameters from the application server: The application server communicates with the management client in real time, and the application server transmits the current location of the mobile device, flight status information, and broadcast status information to the management client in real time.

6. The airport mobile semi-automatic broadcasting method based on multi-sided positioning as described in claim 5, characterized in that, Step 2 specifically involves: Step 201: Select the information of the four RFID tags that are closest to the location of the mobile terminal from the received location information of the multiple RFID tags; The selection rule for the RFID tags is as follows: while ensuring that there are 4 RFID tags participating in the calculation, the data of the RFID tags with a distance greater than 3.5m are removed; Step 202: Then, the current location of the mobile terminal is calculated using the polygonal positioning calculation method; The calculation process of the multilateral positioning calculation method is as follows: First, let the known coordinates of the four RFID tags be (x1, y1), (x2, y2), (x3, y3), and (x4, y4), and let the unknown coordinates of the mobile terminal be (x, y). Let the distances between the positions of the four RFID tags and the position of the mobile terminal be r1, r2, r3, and r4, respectively. Then, establish a system of equations. Then, by subtracting the fourth equation from the first, second, and third equations, we obtain the linearized equation of Ax = b, where... The final solution is x = (A) T A) -1 A T b. Finally, calculate the coordinates of the mobile device's current location.

7. A method for airport mobile semi-automatic broadcasting based on multi-sided positioning as described in claim 5 or 6, characterized in that, The distance from the mobile device to the RFID tag is calculated automatically by the RFID reader in the mobile device based on signal attenuation.

8. The airport mobile semi-automatic broadcasting method based on multi-side positioning as described in claim 5, characterized in that, Step 4 specifically involves: Step 401: The application server periodically sends the current location information of the mobile terminal to the mobile terminal. When the mobile terminal receives the current location information for the first time, it stores and displays the location information. The mobile terminal also automatically sends a request for flight status information of the region to the application server. After receiving the flight status information of the region, the mobile terminal stores and displays the flight status information of the region. Step 402: After the mobile terminal receives the current location information of the mobile terminal for the second time, the mobile terminal compares the new location information with the previously received location information. If they are inconsistent, the mobile terminal gives a prompt "Change region?". If a user holding the mobile device selects "Change Region" as prompted, the mobile device will automatically request flight status information after the region change from the application server. After receiving the request, the application server will process it internally and send the flight status information after the region change back to the mobile device. If the user holding the mobile device selects "Do not change region" as prompted, the mobile device will not request flight status information from the application server.

9. The airport mobile semi-automatic broadcasting method based on multi-side positioning as described in claim 8, characterized in that, The application server sends the mobile device's current location information to the mobile device every 5 or 10 seconds.

10. The airport mobile semi-automatic broadcasting method based on multi-lateral positioning as described in claim 5, characterized in that, The specific operation of obtaining the associated identification information of the airport public broadcasting facility in step 5 is as follows: the identification of the airport public broadcasting facility is associated with flight status information. When a user holding the mobile terminal publishes a flight service broadcast request to the application server based on the regional flight status information, the application server obtains the associated identification information of the airport public broadcasting facility based on the received flight status information.

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