Explanation equipment for urban tourist attractions

Abstract

The invention discloses explanation equipment for urban tourist attractions, and aims to solve the problem that an existing electronic tour guide APP depends on mobile phone endurance and is poor in interactivity. The explanation equipment for the urban tourist attractions comprises a storage cabinet and a matched headset, the storage cabinet is provided with a containing unit, a perspective protection structure, a code scanning interaction part and a wireless charging part, and self-service borrowing and returning are supported; the headset integrates a positioning and communication module, a voice interaction module, a control module and a local cache and storage module, can dynamically position and trigger explanation and voice interaction reply, and calls local pre-stored content when the network is disconnected. The advanced function can collect interaction information incremental update data, post unknown questions to collect answers and iterate a database. The method gets rid of mobile phone dependence, improves use convenience and interactive experience, guarantees explanation continuity, realizes continuous optimization of content, and adapts to intelligent travel demands.

Description

Technical Field

[0001] This invention relates to the field of interpretive equipment technology, specifically an interpretive device for urban tourist attractions. Background Technology

[0002] With the rapid development of the smart tourism industry, the demand for portable audio guides in scenic spots, city streets, and other tourist settings is increasing. Portable audio guides are typically implemented through electronic tour guide applications (APPs) on users' mobile phones. The core function of these APPs is to play pre-recorded audio, providing tourists with basic information such as attraction names and key highlights. However, existing electronic tour guide APPs struggle to meet the needs of modern tourists who seek in-depth cultural exploration and immersive experiences. This is mainly due to two major problems facing portable audio guides.

[0003] First, portable audio guide devices place high demands on phone battery life, severely impacting the tourist experience. Electronic tour guide apps continuously consume phone hardware resources, not only depleting battery power but also competing for battery life with other phone uses such as taking photos, navigation, and making calls. Especially during extended outdoor activities, tourists often lack access to charging resources, leading to depleted batteries and forced interruptions to the tour. While some tourists carry power banks, this only addresses battery life and doesn't provide the audio guide function, ultimately creating a paradoxical situation where there's sufficient battery power for an uninterrupted tour, or the tour is available but the battery is dead.

[0004] Secondly, existing portable audio guide devices have extremely poor interactivity, failing to provide a good interactive experience. Most electronic tour guide apps lack intelligent interactive design and cannot achieve dynamic location-triggered explanation functions. Tourists need to manually search and switch between explanation chapters, which is cumbersome and easily distracting. At the same time, these apps also lack voice interaction, so tourists' cultural questions during the tour cannot be answered in real time; they can only passively receive pre-recorded content, which greatly diminishes the interactive experience for tourists. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a guide device for urban tourist attractions to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides a guided tour device for urban tourist attractions, comprising a storage cabinet and multiple headsets stored within the storage cabinet. The storage cabinet has several placement cavities for accommodating the headsets. A transparent door matching the placement cavity is installed on the storage cabinet. The storage cabinet has a QR code interaction area. A charging unit is located within each placement cavity, enabling wireless charging of the headsets. Each headset contains a voice interaction module, a battery module, a positioning and communication module, a control module, and a local cache and storage module. The battery module is electrically connected to the other modules to supply power. The local cache and storage module is used to pre-store urban tourism-related information and can store guided tour content downloaded from a cloud-based knowledge base. The positioning and communication module is used to acquire the user's real-time location information and establish a communication connection with the cloud-based knowledge base, enabling location information upload and corresponding guided tour content retrieval. The voice interaction module is used to collect user voice questions and synthesize the content in the storage module or the guided tour content retrieved from the cloud into voice playback, responding to user voice interaction needs. The control module is signal-connected to the other modules to trigger the retrieval and playback of guided tour content based on location information and to coordinate the power distribution of the battery module.

[0007] In one or more embodiments of the present invention, the QR code interaction area is located in the middle or lower part of the storage cabinet, and the QR code interaction area integrates an identity verification unit. The identity verification unit is signal-connected to the electromagnetic locking mechanism of the transparent door and is used to complete user identity verification and trigger the opening and closing of the corresponding transparent door by scanning the QR code.

[0008] In one or more embodiments of the present invention, the positioning and communication module includes a multi-mode satellite positioning unit and a multi-mode wireless communication unit; the multi-mode satellite positioning unit is configured to acquire the user's real-time location information; the multi-mode wireless communication unit is configured to establish a communication connection with a cloud knowledge base to realize the uploading of location information and the acquisition of explanation content, and when the communication link is interrupted, the local cache and storage module is automatically triggered to call the pre-stored explanation content.

[0009] In one or more embodiments of the present invention, the positioning and communication module includes a multi-mode satellite positioning unit and a multi-mode wireless communication unit. The multi-mode satellite positioning unit is used to acquire the user's real-time location information, and the multi-mode wireless communication unit is used to establish a communication connection with the cloud knowledge base to realize the uploading of location information and the acquisition of explanation content. When the communication link is interrupted, the positioning and communication module triggers the local cache and storage module to call the pre-stored explanation content.

[0010] In one or more embodiments of the present invention, the voice interaction module includes a voice synthesis unit and a voice recognition unit. The voice synthesis unit is used to convert text-based explanations into voice signals for output, supporting multi-tone output and speech rate adjustment of 0.8 to 1.5 times. The voice recognition unit includes a noise reduction processing unit and a dialect recognition optimization unit. The noise reduction processing unit is used to perform noise reduction preprocessing on the collected user voice input signals, and the dialect recognition optimization unit is used to load a voice recognition model of the target dialect.

[0011] In one or more embodiments of the present invention, each of the placement cavities is provided with a status detection unit. The status detection unit is signal-connected to the control module and is used to detect whether the headphones are back in place and the remaining battery power, and to provide feedback on the device status through the display interface of the QR code interaction area or indicator lights.

[0012] In one or more embodiments of the present invention, the scheduling logic of the control module is as follows: when the voice interaction module collects a user's voice question, the current explanation content is paused, and the question text is uploaded to the cloud knowledge base to retrieve the answer first through the positioning and communication module, or the corresponding data of the local cache and storage module is called, and the voice is synthesized by the voice interaction module to reply to the user.

[0013] In one or more embodiments of the present invention, the voice interaction module further includes a built-in voice interaction information acquisition unit, which is used to acquire the user's voice question content and the corresponding interactive response content. The control module integrates a dialogue retrieval and local update unit, which is configured to retrieve the user's voice question content acquired by the voice interaction information acquisition unit, retrieve the cloud knowledge base or call the pre-stored data of the local cache and storage module through the positioning and communication module, and associate the retrieved valid response content with the corresponding user question content for storage. At the same time, based on the associated stored content, the city tourism-related information in the local cache and storage module is incrementally updated.

[0014] In one or more embodiments of the present invention, the control module further includes an unknown question judgment unit and a post generation unit. The unknown question judgment unit is used to determine whether a valid reply can be obtained after retrieving the cloud knowledge base through the positioning and communication module and calling the pre-stored data through the local cache and storage module. When the unknown question judgment unit determines that a valid reply cannot be obtained, the post generation unit is used to convert the user's voice question into a text-based post to be answered. The post to be answered includes the question content, the user's current location information, and the question time information. The post to be answered is then uploaded to the cloud server through the positioning and communication module to achieve the public collection of answers to be answered.

[0015] In one or more embodiments of the present invention, the positioning and communication module has a built-in post answer processing unit, the control module has a built-in answer verification and database update unit, the post answer receiving unit is used to receive valid reply answers sent by the cloud server for the post to be answered, and the answer verification and database update unit is used to verify the validity of the valid reply answers. After the verification is successful, the valid reply answers are associated and bound with the question content in the corresponding post to be answered, and are synchronously updated to the cloud knowledge base through the positioning and communication module. At the same time, the city tourism-related information in the local cache and storage module is updated accordingly to achieve iterative optimization of the database.

[0016] The beneficial effects of this invention are as follows: the positioning and communication module enables dynamic positioning-triggered explanation, eliminating the need for users to manually search for and switch explanation chapters, making operation convenient and avoiding distraction; the voice interaction module enables voice questions and real-time responses, solving the shortcomings of passively receiving pre-recorded content in the prior art and greatly improving the interactive experience of tourists. The positioning and communication module adopts a multi-mode satellite positioning unit and a multi-mode wireless communication unit, which has high positioning accuracy and can ensure that the explanation content is accurately matched with the user's real-time location. At the same time, when the communication link is interrupted, the local cache and storage module can be automatically triggered to call the pre-stored explanation content to ensure that the explanation service is uninterrupted and improve the visitor's tour experience. By optimizing the voice interaction scheduling logic of the control module, a complete process of pausing the current explanation, prioritizing answer retrieval, replying to the user, and resuming the explanation was realized. This ensures that users' voice questions can be answered in a timely manner, while also guaranteeing the continuity of the explanation content, avoiding conflicts between the reply content and the explanation content, and improving the smoothness of the interactive experience. The voice interaction information collection unit collects the user's voice questions and corresponding interactive responses, enabling accurate capture of the user's actual needs. The dialogue retrieval and local update unit enables incremental updates of the explanation content in the local cache and storage module, making the explanation content more in line with the user's needs and improving the relevance and accuracy of the explanation content. Through the answer verification and database update unit, the collected answers are validated and updated synchronously to the cloud knowledge base and local cache, realizing closed-loop iterative optimization of the explanation data. This allows the explanation content of the explanation equipment to be continuously enriched and improved, meeting the in-depth tourism needs of different users and enhancing the long-term use value of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a guide device for urban tourist attractions according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a headset in one embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of a headset in one embodiment of the present invention. Figure 2 ; Figure 4 This is a cross-sectional view of a headset according to an embodiment of the present invention; Figure 5 This is a flowchart illustrating the self-service borrowing and retrieving process of a storage cabinet in one embodiment of the present invention; Figure 6 This is a flowchart illustrating the self-service return process of a storage cabinet in one embodiment of the present invention; Figure 7 This is a flowchart illustrating the basic principles of headphones in one embodiment of the present invention; Figure 8 This is a flowchart of the headphone voice interaction process in one embodiment of the present invention; Figure 9 This is a flowchart of the state detection process of the accommodating unit in one embodiment of the present invention; Figure 10 This is a flowchart of voice interaction scheduling optimization in one embodiment of the present invention; Figure 11 This is a flowchart of the voice interaction information collection and update process in one embodiment of the present invention; Figure 12 This is a flowchart of the unknown problem post collection process in one embodiment of the present invention; Figure 13 This is a flowchart of the answer receiving and verification process in one embodiment of the present invention; Figure 14 This is a flowchart of database iterative update in one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Storage cabinet; 2. Placement cavity; 3. Transparent door; 4. QR code interaction area; 5. Headphones; 501. Data port; 6. Voice interaction module; 7. Battery module; 8. Positioning and communication module; 9. Control module; 10. Local cache and storage module. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: like Figures 1-8 As shown, an embodiment of the present invention provides an audio guide device for urban tourist attractions, comprising a storage cabinet 1 and multiple headsets 5 stored within the storage cabinet 1. The storage cabinet 1 is made of stainless steel with a closed bottom structure, providing waterproof and dustproof functionality, and can be placed in locations such as corners of urban streets and entrances to scenic spots. The storage cabinet 1 has multiple placement cavities 2 for accommodating the headsets 5, each cavity 2 being sized to fit the headsets 5, ensuring stable placement. The storage cabinet 1 is equipped with a transparent door 3 corresponding to each placement cavity 2. In this embodiment, the transparent door 3 is a transparent acrylic door, hinged to the edge of the placement cavity 2. An electromagnetic locking mechanism is provided on the outer side of the transparent acrylic door for closing and opening the placement cavity 2.

[0022] The central area of ​​storage cabinet 1 features a QR code scanning interaction area 4, which includes a QR code display panel, a miniature display screen, and indicator lights. The QR code display panel shows the borrowing / returning QR code, the miniature display screen shows the device status, and the indicator lights provide feedback on the operation result. The QR code scanning interaction area 4 integrates an authentication unit, which includes a QR code recognition module, a communication module, and a control chip. The authentication unit is signal-connected to the electromagnetic locking mechanism of the transparent door 3. After the user scans the QR code with their mobile phone, the authentication unit verifies the user's identity with the cloud server via the communication module. Once verification is successful, the control chip sends an unlocking signal to the corresponding electromagnetic locking mechanism of the transparent door 3, opening the transparent acrylic door. The user can then remove the headphones 5. Upon return, the user places the headphones 5 into the placement cavity 2. After the status detection unit detects the headphones are returned to their original position, the electromagnetic locking mechanism automatically locks the transparent acrylic door.

[0023] A charging unit is located at the bottom of the placement cavity 2. In this embodiment, the charging unit is a wireless charging coil, which works in conjunction with the wireless charging receiving coil at the bottom of the headphones 5 to achieve wireless charging. When the headphones 5 are returned to their original position, the charging unit automatically starts to replenish the headphones' power. The charging power can be adaptively adjusted according to the remaining power of the headphones.

[0024] like Figures 2-4As shown, the headset 5 adopts a lightweight design and is comfortable to wear. It integrates a voice interaction module 6, a battery module 7, a positioning and communication module 8, a control module 9, and a local cache and storage module 10. Each module is electrically and signal connected through a circuit board.

[0025] The headphones 5 also have a data port 501, which can be connected to a data cable and a power bank for charging.

[0026] Battery module 7 is a high-capacity lithium battery. In this embodiment, the capacity of the high-capacity lithium battery is 2000mAh. It is electrically connected to the voice interaction module 6, the positioning and communication module 8, the control module 9, and the local cache and storage module 10, respectively, to provide power to each module. The single-charge battery life is not less than 8 hours.

[0027] The local cache and storage module 10 is equipped with at least 16GB of flash memory chips for pre-storing city tourism-related information, including city history, the origins of neighborhoods, and anecdotes about attractions. It can also store explanatory content distributed from the cloud knowledge base. The local cache and storage module 10 stores data in a categorized manner by city, region, and scene for easy and quick retrieval. The stored cloud knowledge base can then be distributed to the voice interaction module 6.

[0028] The positioning and communication module 8 includes a multi-mode satellite positioning unit and a multi-mode wireless communication unit. In this embodiment, the multi-mode satellite positioning unit is a GPS or BeiDou dual-mode positioning chip with a positioning accuracy error of no more than 3 meters, used to obtain the user's real-time location information. The multi-mode wireless communication unit is a 4G / NB-IoT dual-mode communication chip, used to establish a communication connection with the cloud knowledge base to realize the uploading of location information and the acquisition of corresponding explanation content. When the communication link is interrupted, the positioning and communication module 8 automatically triggers the local cache and storage module 10 to call the pre-stored explanation content to ensure that the explanation service is not interrupted.

[0029] The voice interaction module 6 includes a speech synthesis unit and a speech recognition unit. In this embodiment, the speech synthesis unit is a TTS speech synthesis chip, used to convert text-based explanations into speech signals for output. It supports multi-tone output and speech rate adjustment from 0.8 to 1.5 times, which users can set according to their preferences. The speech recognition unit is an ASR speech recognition chip, including a noise reduction processing unit and a dialect recognition optimization unit. The noise reduction processing unit uses spectral subtraction to preprocess the acquired user speech input signal for noise reduction. The dialect recognition optimization unit loads speech recognition models for target dialects such as Mandarin, Sichuanese, and Cantonese, improving the accuracy and adaptability of speech recognition. The voice interaction module 6 also has a built-in microphone and speaker. The microphone is used to collect user voice questions, and the speaker is used to play the synthesized speech content.

[0030] The control module 9 is a microcontroller connected to the voice interaction module 6, battery module 7, positioning and communication module 8, and local cache and storage module 10. It is used to trigger the retrieval and playback of narration content based on location information and to coordinate the power supply distribution of the battery module 7. Specifically, after the positioning and communication module 8 obtains the user's real-time location information, it sends the location information to the control module 9. The control module 9, based on the location information, sends a request to the cloud knowledge base through the positioning and communication module 8 to obtain the corresponding narration content, or directly calls the pre-stored narration content in the local cache and storage module 10. Then, it controls the voice interaction module 6 to synthesize the narration content into audio for playback. Simultaneously, the control module 9 prioritizes powering the voice interaction module 6 and the positioning and communication module 8 based on the working status of each module and the power supply distribution of the battery module 7, ensuring the normal operation of the core functions.

[0031] In this embodiment, the usage process of the audio guide equipment at urban tourist attractions is as follows: When a user arrives at storage cabinet 1, they scan the QR code in the QR code scanning interaction area 4 with their mobile phone. After the identity verification unit receives the scan signal, it verifies the user's identity with the cloud server. Once the verification is successful, the identity verification unit sends an unlock signal to the corresponding transparent door 3. The electromagnetic locking mechanism opens, the transparent door 3 pops open automatically, and the user takes out the headset 5.

[0032] After the user removes the headset 5, the headset 5 powers on and completes a self-test. The multi-mode satellite positioning unit of the positioning and communication module 8 is activated to acquire the user's real-time location information, and the multi-mode wireless communication unit is activated to establish a communication connection with the cloud knowledge base. The positioning and communication module 8 sends the user's real-time location information to the control module 9. Based on the location information, the control module 9 sends a request for explanation content to the cloud knowledge base. After receiving the request, the cloud knowledge base distributes the explanation content corresponding to the location. The local caching and storage module 10 receives and stores the explanation content. The control module 9 sends a playback signal to the voice interaction module 6. The voice synthesis unit converts the text explanation content into a voice signal, which is then played through the speaker.

[0033] During the explanation, the user can ask questions via microphone. The voice recognition unit of the voice interaction module 6 receives the voice signal, the noise reduction processing unit performs noise reduction preprocessing on the signal, the dialect recognition optimization unit loads the target dialect model, and converts the voice signal into a text question. After receiving the text question, the control module 9 pauses the current explanation content and uploads the text question to the cloud knowledge base through the positioning and communication module 8 to retrieve the answer. After the cloud knowledge base sends the answer, the voice synthesis unit converts the answer into a voice signal and replies to the user through the speaker.

[0034] When a user enters a signal blind spot, the multi-mode wireless communication unit of the positioning and communication module 8 detects the interruption of the communication link and immediately sends a network disconnection signal to the control module 9. The control module 9 automatically triggers the local cache and storage module 10 to call up the pre-stored city tourism-related information; based on the user's current location information, it selects the corresponding pre-stored explanation content and plays it through the voice interaction module 6 to ensure that the explanation service is uninterrupted.

[0035] After the user has finished using the device, the user places the headphones 5 into any available placement cavity 2, ensuring that the headphones are aligned with the charging unit. The electromagnetic locking mechanism of the transparent door 3 will automatically lock, and the charging unit will automatically start the wireless charging function to replenish the power of the headphones 5.

[0036] In this embodiment, the beneficial effects of interpretive equipment used in urban tourist attractions include at least the following: The positioning and communication module 8 enables dynamic location-triggered explanations, eliminating the need for users to manually search for and switch explanation chapters, making operation convenient. The voice interaction module 6 enables voice questions and responses, solving the shortcomings of existing electronic tour guide apps that passively receive pre-recorded content and improving the interactive experience.

[0037] The positioning and communication module 8 supports multi-mode satellite positioning and multi-mode wireless communication, with low positioning accuracy error, ensuring the accuracy of the narration content. When the communication link is interrupted, the local cache and storage module 10 is automatically triggered to call the pre-stored content, ensuring that the narration service is not interrupted and improving the user's tour experience.

[0038] Example 2: Unlike Example 1, as Figures 9-10 As shown, each placement cavity 2 is equipped with a status detection unit. In this embodiment, the status detection unit consists of an infrared sensor and a power detection chip, and the status detection unit is signal-connected to the control module 9. The infrared sensor is used to detect whether a headset 5 is placed in the placement cavity 2, and the power detection chip is used to obtain the remaining power of the headset 5. The status detection unit sends the detected information to the control module 9, and the control module 9 provides feedback on the device status through the miniature display screen or indicator lights in the QR code interaction area 4 for user convenience.

[0039] The scheduling logic of control module 9 is as follows: When the microphone of voice interaction module 6 detects a user's voice question, control module 9 immediately sends a pause signal to voice interaction module 6, pausing the current explanation. Then, control module 9 converts the user's voice question into text, uploads it to the cloud knowledge base via positioning and communication module 8 to retrieve the answer, and if the answer is found in the cloud knowledge base, it is downloaded locally, synthesized into speech by voice interaction module 6, and then replied to the user. If the answer is not found in the cloud knowledge base, control module 9 retrieves the corresponding data from local cache and storage module 10, synthesizes the speech by voice interaction module 6, and then replied to the user.

[0040] In this embodiment, the status detection process for the storage cabinet of the audio guide equipment used in urban tourist attractions is as follows: The status detection unit within each placement cavity 2 operates in real time, continuously detecting whether the headphones 5 are in place within the cavity 2 and obtaining the remaining battery power of the headphones. The status detection unit sends the detected headphone placement status and remaining battery power information to the storage cabinet 1 in real time. The storage cabinet 1 then feeds this information back to the miniature display screen or indicator light on the QR code interaction area 4 in real time. The miniature display shows the number of each housing unit, whether the earphones are in place, and the remaining battery percentage. The indicator lights use a three-color display: green indicates that the earphones are in place and have sufficient power (≥70%), yellow indicates that the earphones are in place and have moderate power (≤30%), and red indicates that the earphones are in place and have insufficient power (<30%). This allows users to intuitively check the device status and select earphones with sufficient power.

[0041] In this embodiment, the interactive scheduling process for the headset terminal of the audio guide equipment used in urban tourist attractions is as follows: After the microphone of the voice interaction module 6 picks up the user's voice question, it immediately sends a question signal to the control module 9. Upon receiving the question signal, the control module 9 immediately sends a pause signal to the voice interaction module 6, pausing the currently playing explanation content to ensure the user can clearly hear the response. After converting the user's voice question into text, the control module 9 prioritizes uploading it to the cloud knowledge base via the positioning and communication module 8 to retrieve the answer. If a valid answer is found in the cloud knowledge base, it is downloaded directly to the local machine, converted into speech by the speech synthesis unit, and then replied to the user. If no valid answer is found in the cloud knowledge base, the control module 9 immediately calls the pre-stored data in the local cache and storage module 10 to retrieve relevant content, converts it into speech by the speech synthesis unit, and then replies to the user. After the reply is completed, the control module 9 sends a continue playback signal to the voice interaction module 6 to resume the previously paused explanation, ensuring the continuity of the explanation.

[0042] In this embodiment, the beneficial effects of interpretive equipment used in urban tourist attractions include at least the following: By setting a status detection unit in each placement cavity 2, the real-time monitoring of the return status and remaining power of the headphones 5 is realized, and feedback is provided through the display interface or indicator lights in the QR code interaction area 4. Users can choose headphones with sufficient power according to their own needs, avoiding the situation of borrowing headphones with insufficient power, and further improving the user experience.

[0043] The scheduling logic of control module 9 implements a complete process of pausing the current explanation, prioritizing answer retrieval, replying to the user, and resuming the explanation. This ensures that users' voice questions can be answered in a timely manner, while also guaranteeing the continuity of the explanation content, avoiding conflicts between the reply content and the explanation content, and improving the smoothness of the interactive experience.

[0044] Example 3: Unlike Examples 1 and 2, as Figures 11-14 As shown, this further implements incremental updates of the explanatory data, public collection of unknown issues, and iterative optimization of the database, as detailed below: The voice interaction module 6 also has a built-in voice interaction information acquisition unit. In this embodiment, the voice interaction information acquisition unit is a data acquisition chip, which is used to collect the user's voice questions and corresponding interactive responses, and send the collected information to the control module 9.

[0045] The control module 9 integrates a dialogue retrieval and local update unit. In this embodiment, the dialogue retrieval and local update unit is an embedded program. The dialogue retrieval and local update unit retrieves the user's voice question content collected by the voice interaction information collection unit, retrieves the cloud knowledge base or calls the pre-stored data of the local cache and storage module 10 through the positioning and communication module 8, and associates the retrieved valid response content with the corresponding user question content for storage. At the same time, it incrementally updates the city tourism-related information in the local cache and storage module 10 based on the associated stored content.

[0046] For example, when a user asks multiple questions about the history of a certain neighborhood, and the relevant content in the local cache and storage module 10 is relatively brief, the dialogue retrieval and local update unit will download more detailed content from the cloud knowledge base to the local machine and perform incremental updates on the local data.

[0047] The control module 9 also includes an unknown question judgment unit and a post generation unit. In this embodiment, both the unknown question judgment unit and the post generation unit are embedded programs. The unknown question judgment unit is used to determine whether a valid reply can be obtained after retrieving the cloud knowledge base through the positioning and communication module 8 and calling the pre-stored data in the local cache and storage module 10. When the unknown question judgment unit determines that a valid reply cannot be obtained, the post generation unit is used to convert the user's voice question into a text-based post to be answered. The post to be answered includes the question content, the user's current location information, and the question time information. The post to be answered is then uploaded to the cloud server through the positioning and communication module 8 to achieve the public collection of answers.

[0048] The positioning and communication module 8 has a built-in post answer processing unit. In this embodiment, the post answer processing unit is a communication processing chip, which is used to receive the valid reply answers to the posts to be answered from the cloud server and send the answers to the control module 9.

[0049] The control module 9 has a built-in answer verification and database update unit. In this embodiment, the answer verification and database update unit is an embedded program used to verify the validity of valid answers. The verification criteria include the accuracy, relevance, and completeness of the answer. After successful verification, the valid answer is associated with the question content in the corresponding unanswered post and synchronously updated to the cloud knowledge base through the positioning and communication module 8. At the same time, the city tourism-related information in the local cache and storage module 10 is updated accordingly, realizing iterative optimization of the database.

[0050] In this embodiment, the beneficial effects of interpretive equipment used in urban tourist attractions include at least the following: The voice interaction information collection unit collects user interaction content, and the dialogue retrieval and local update unit realizes incremental updates of local data. This allows the explanation content in the local cache and storage module 10 to be optimized according to the actual questions asked by the user, making it more in line with the user's needs and improving the relevance and accuracy of the explanation content.

[0051] By using the unknown question identification unit and the post generation unit, unanswerable unknown questions are converted into posts to be answered and uploaded to the cloud server for public collection. This broadens the coverage of the explanation content and solves the shortcomings of existing explanation equipment, which has fixed explanation content and cannot cover personalized questions from users.

[0052] Through the answer verification and database update unit, the collected answers are validated and updated synchronously to the cloud knowledge base and local cache, realizing closed-loop iterative optimization of the explanation data. This allows the explanation content of the explanation equipment to be continuously enriched and improved, meeting the in-depth tourism needs of different users and enhancing the long-term use value of the equipment.

[0053] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A guide device for urban tourist attractions, characterized by comprising: The application relates to a storage cabinet (1) and a plurality of headsets (5) stored in the storage cabinet (1). The storage cabinet (1) is internally provided with a plurality of placement cavities (2) for accommodating the headsets (5), the storage cabinet (1) is provided with a perspective door (3) matched with the placement cavities (2), the storage cabinet (1) is provided with a code scanning interaction area (4), the placement cavities (2) are provided with charging portions, and the charging portions realize wireless charging of the headsets (5). The headset (5) is internally provided with a voice interaction module (6), a battery module (7), a positioning and communication module (8), a control module (9) and a local cache and storage module (10). The battery module (7) is electrically connected with the other modules and is used for supplying power to the modules. The local cache and storage module (10) is used for pre-storing city tour related information and storing explanation contents issued by a cloud knowledge base. The positioning and communication module (8) is used for acquiring real-time position information of a user and establishing a communication connection with the cloud knowledge base, realizing position information uploading and corresponding explanation content acquisition. The voice interaction module (6) is used for collecting user voice questions and synthesizing contents in the storage module or explanation contents acquired from the cloud into voice for playing, so as to respond to user voice interaction demands. The control module (9) is signal-connected with the other modules and is used for triggering explanation content calling and playing according to positioning information and coordinating power supply distribution of the battery module (7).

2. The guide device for urban tourist attractions according to claim 1, characterized in that, The code scanning interaction area (4) is located in a middle or lower area of the storage cabinet (1), and the code scanning interaction area (4) is integrated with an identity verification unit. The identity verification unit is signal-connected with an electromagnetic locking mechanism of the perspective door (3) and is used for completing user identity verification through a code scanning mode and triggering opening and closing of the corresponding perspective door (3).

3. The guide device for city tourist attractions according to claim 1, characterized by The positioning and communication module (8) comprises a multi-mode satellite positioning unit and a multi-mode wireless communication unit.

4. The guide device for city tourist attractions according to claim 1, characterized by The multi-mode satellite positioning unit is used for acquiring real-time position information of a user, and the multi-mode wireless communication unit is used for establishing a communication connection with a cloud knowledge base, realizing position information uploading and explanation content acquisition. The positioning and communication module (8) triggers the local cache and storage module (10) to call pre-stored explanation contents when a communication link is interrupted. The voice interaction module (6) comprises a voice synthesis unit and a voice recognition unit.

5. The guide device for city tourist attractions according to claim 1, characterized by The voice synthesis unit is used for converting explanation contents in a text form into voice signal output, supports multi-voice color output and 0.8-1.5 times speed adjustment. ​ The voice recognition unit comprises a noise reduction processing unit and a dialect recognition optimization unit, the noise reduction processing unit is used for noise reduction preprocessing of the collected user voice input signal, and the dialect recognition optimization unit is used for loading a voice recognition model of a target dialect.

6. The guide device for city tourist attractions according to claim 1, characterized by Each of the placement cavities (2) is provided with a state detection unit connected with the control module (9) for detecting whether the headset (5) is homed and the remaining power, and feeding back the equipment state through the display interface or the indicator light of the code scanning interaction area (4).

7. The guide device for city tourist attractions according to claim 1, characterized by The scheduling logic of the control module (9) is as follows: When the voice interaction module (6) collects the user voice question, the current explanation content is paused, the question text is uploaded to the cloud knowledge base through the positioning and communication module (8) to retrieve the answer, or the corresponding data in the local cache and storage module (10) is called, and the user is replied after the synthesized voice of the voice interaction module (6).

8. The guide device for city tourist attractions according to claim 1, characterized by The voice interaction module (6) is also provided with a voice interaction information collection unit, which is used for collecting the voice question content and the corresponding interaction reply content of the user; The control module (9) is integrated with a dialogue retrieval and local update unit, which is configured to retrieve the cloud knowledge base through the positioning and communication module (8) or call the pre-stored data in the local cache and storage module (10) according to the user voice question content collected by the voice interaction information collection unit, and store the effective reply content obtained by retrieval and the corresponding user question content in association, and update the city tourism related information in the local cache and storage module (10) according to the associated storage content.

9. The guide device for city tourist attractions according to claim 8, characterized by The control module (9) is also provided with an unknown question judgment unit and a post generation unit; The unknown question judgment unit is used to judge whether the effective reply content can be obtained after retrieving the cloud knowledge base through the positioning and communication module (8) and calling the pre-stored data in the local cache and storage module (10); When the unknown question judgment unit determines that the effective reply content cannot be obtained, the post generation unit is used to convert the voice question content of the user into a text form of a to-be-answered post, the to-be-answered post contains the question content, the current position information of the user and the question time information, and the to-be-answered post is uploaded to the cloud server through the positioning and communication module (8) to realize the public collection of the to-be-answered answer.

10. The guide device for city tourist attractions according to claim 9, characterized by The positioning and communication module (8) is provided with a post answer processing unit, and the control module (9) is provided with an answer verification and database update unit; The post answer receiving unit is used to receive the effective reply answer to the to-be-answered post issued by the cloud server; The answer verification and database update unit is used to verify the effectiveness of the effective reply answer, and after the verification is passed, the effective reply answer is associated and bound with the question content in the corresponding to-be-answered post, and is updated to the cloud knowledge base through the positioning and communication module (8) at the same time, and the city tourism related information in the local cache and storage module (10) is updated correspondingly, so as to realize the iterative optimization of the database.

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