A recording apparatus for business consultation

Abstract

The utility model relates to electronic recording equipment technical field especially, relates to a recording device for enterprise consultation, including main control module, multimode input module, data processing module, storage unit, power management module, electronic paper display screen, the main control module is connected with data processing module and has reconfigurable data passage, reconfigurable data passage contains switch array, level conversion circuit, state detection circuit, multimode input module includes capacitive touch screen, microphone array, physical keyboard, and with reconfigurable data passage connection, main control module is connected with storage unit, power management module, is used for controlling data storage mode and power supply strategy, the storage unit adopts bimodulus cooperation storage architecture, the utility model can aim at the special demand of enterprise consultation scene, has carried out the customization optimization in data safety transmission, multimode input high -efficient integration and system -level fine energy consumption management aspect, has promoted the scene adaptability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electronic recording equipment technology, and in particular to a recording device for enterprise consultation. Background Technology

[0002] In modern corporate consulting activities, consultants need to frequently record a large amount of information in various forms, including audio recordings of meeting discussions, handwritten notes on whiteboards, and keyboard input on personal computers.

[0003] To address this, a utility model patent with patent number CN218295160U discloses a field recorder for enterprise management consulting. It uses a mechanical structure to combine a laptop tray with a handwriting recording board, but the electrical module only includes a simple recording function and lacks related data processing and optimization capabilities.

[0004] Currently, general-purpose recording devices on the market (such as voice recorders and writing tablets) have limited functions and cannot integrate multiple recording modes. While smartphones or tablets are feature-rich, consultants often serve multiple clients. Using general-purpose devices for recording can easily lead to the mixing and storage of sensitive business information from different clients, posing a risk of data leakage. Furthermore, there is a lack of a reliable mechanism for quickly identifying and isolating different clients.

[0005] Business consultation meetings or interviews are often lengthy and place extremely high demands on the battery life of equipment. When general-purpose devices are performing low-load tasks such as handwriting recording, their internal data paths and related chips (such as audio codecs) and storage modules may still be operating at high speeds, resulting in unnecessary power waste.

[0006] Furthermore, when switching between different recording modes such as voice and handwriting, general-purpose devices often rely on adjustments made by upper-layer software applications. The underlying hardware resources cannot be dynamically reconfigured to match task requirements, which may result in delays or data loss when processing high-bandwidth data such as multi-channel high-definition voice, while wasting system resources when processing low-bandwidth data such as handwriting coordinates.

[0007] Therefore, it is necessary to further improve a recording device for business consulting. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the existing defects and provide a recording device for enterprise consultation. It is customized for the special needs of enterprise consultation scenarios in terms of data security, efficient integration of multiple modes and refined energy consumption management, and can effectively solve the problems in the background technology.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a recording device for enterprise consultation, comprising a main control module, a multi-mode input module, a data processing module, a storage unit, a power management module, and an electronic paper display screen, characterized in that:

[0010] The main control module and the data processing module are connected by a reconfigurable data path; the reconfigurable data path includes a switch array, a level conversion circuit, and a status detection circuit.

[0011] The multi-mode input module includes a capacitive touchscreen, a microphone array, a physical keyboard, and is connected to a reconfigurable data path.

[0012] The main control module is connected to the storage unit and the power management module, and is used to control the data storage method and power supply strategy.

[0013] The storage unit adopts a dual-mode collaborative storage architecture.

[0014] Preferably, the electronic paper display screen is connected to the main control module; the capacitive touch screen is an OGS structure integrated into the electronic paper display screen.

[0015] Preferably, the storage unit includes an eMMC flash memory and an SD card; the eMMC flash memory is connected to the main control module via an SDIO interface, and the SD card is connected to the main control module via an SD controller.

[0016] Preferably, the multi-mode input module further includes an NFC identity recognition module connected to the main control module; the power management module includes an NFC antenna power supply circuit; and the storage unit is divided into isolated partitions.

[0017] Preferably, the power management module uses a charging management chip that supports both wireless charging and wired fast charging.

[0018] Preferably, it also includes a communication module that supports dual-mode Bluetooth and Wi-Fi communication.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] By using a reconfigurable data path, including a switch array, level conversion circuit, and status detection circuit, hardware-level parallel switching of input modules such as capacitive touch screens, microphone arrays, and physical keyboards is achieved. Compared with the traditional serial architecture, the processing speed is improved by about 40%, and the modes do not interfere with each other.

[0021] It adopts eMMC flash memory and SD card collaborative storage. The main control module dynamically allocates storage paths according to the input mode. For example, handwriting mode prioritizes eMMC and voice mode has dual backups. Combined with CRC check and abnormal switching mechanism, it ensures the security and integrity of enterprise consultation data.

[0022] The power management module is based on a dynamic power control strategy that uses state detection of reconfigurable data paths. Combined with dual-mode support for wireless charging and wired fast charging, it extends the device's battery life and adapts to diverse charging scenarios.

[0023] By using an NFC identity recognition module, such as the ST25R3916 chip, and binding it to the storage isolation partition, the encrypted partition can be automatically unlocked after identity verification. AES-256 real-time encryption is used, and the tag is locked when it leaves, which improves the confidentiality of enterprise consultation data and access control capabilities. Attached Figure Description

[0024] Figure 1 This is a block diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the reconfigurable data path circuit of this utility model. Detailed Implementation

[0026] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0027] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or sets.

[0028] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0029] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] Please see Figure 1-2 This utility model provides a technical solution: a recording device for enterprise consultation, including a main control module, a multi-mode input module, a data processing module, a storage unit, a power management module, and an electronic paper display screen;

[0033] The main control module and the data processing module are connected by a reconfigurable data path; the reconfigurable data path includes a switch array, a level conversion circuit, and a status detection circuit; the multi-mode input module includes a capacitive touch screen, a microphone array, and a physical keyboard, and is connected to the reconfigurable data path.

[0034] Specifically, in this embodiment, the main control module includes a low-power microcontroller responsible for executing the operating system, scheduling tasks, controlling peripherals, and implementing core logic.

[0035] The multi-mode input module is used to collect various types of information in enterprise consulting scenarios. In this embodiment, it specifically includes:

[0036] The capacitive touchscreen has a built-in pressure sensor and touch controller to capture handwriting or gestures and communicates via an I²C interface. When the pressure sensor detects a contact pressure greater than or equal to 200g, the touch controller triggers a hardware interrupt signal to the main control module, thereby triggering the handwriting mode.

[0037] The microphone array, in this embodiment, includes four MEMS microphones and a microphone array trigger circuit. The MEMS microphones are used to pick up voice signals in the conference and transmit data through the I²S interface. The microphone array trigger circuit performs clock line hardware filtering on the signals from the MEMS microphones. When all four microphones simultaneously detect a sound pressure level greater than or equal to 65dB, a high level is output to the main control module through a comparator, thereby triggering the voice mode.

[0038] The physical keyboard, including a USB interface and a physical keyboard scanning circuit, is connected via the USB interface to enable fast and accurate text input. The physical keyboard scanning circuit uses a shift register to expand the keyboard matrix. By pressing a specific combination key on the physical keyboard (such as Alt+1), the physical keyboard is connected to the main control SPI interface through the shift register. The main control module detects a low-level signal for three consecutive clock cycles, thereby triggering the keyboard mode.

[0039] The data processing module includes an FPGA chip. Utilizing the parallel processing capabilities of the FPGA, it can perform real-time preprocessing, handle high-load data streams, and reduce the load on the main control module. For example, it can perform preprocessing operations such as noise reduction, echo cancellation, and encoding on multi-channel audio collected by the microphone array.

[0040] The reconfigurable data path includes a level conversion circuit connected to the main control module. This level conversion circuit can use the TXB0108 chip, which supports bidirectional level conversion to match the voltage differences that may exist between different chips. For example, it can convert the 1.8V of the capacitive touch screen to a 3.3V output, thereby ensuring the stability and reliability of signal transmission.

[0041] The reconfigurable data path also includes a switch array connected to the main control module. The main control module detects trigger signals through a connection to the multi-mode input module and controls the switch array to connect or disconnect the data link between a specific peripheral and the main control module or data processing module. This switch array can use ADG1414 chips and TS3USB221 chips, for example:

[0042] Handwriting mode (implemented by capacitive touch screen): The main control module connects to the DIN pin of the ADG1414 chip, closes the corresponding switch, and routes the I²C signal of the capacitive touch screen to the main control module.

[0043] Voice mode (microphone array implementation): The main control module connects to the DIN pin of the ADG1414 chip, closes the corresponding switch, and routes the I²S signal of the microphone array to the FPGA preprocessing unit.

[0044] Keyboard mode (physical keyboard implementation): The main control module disconnects the capacitive touchscreen's path and connects to the OE pin of the TS3USB221 switch chip to close the switch, routing the physical keyboard's USB signal to the main control module.

[0045] The reconfigurable data path also includes a status detection circuit connected to the main control module. This circuit uses built-in Schmitt triggers to detect the corresponding outputs of the capacitive touchscreen, microphone array, and physical keyboard switch arrays, sending feedback signals to the main control module to implement a feedback mechanism. Hardware filtering eliminates signal jitter during switch switching, ensuring the real-time performance and reliability of the path status detection. In this embodiment, a six-channel Schmitt trigger (model 74HC14) is used to meet the input / output requirements. Its inputs are connected to the outputs of the ADG1414 chip and the TS3USB221 chip, respectively, and its outputs are connected to the main control module.

[0046] By constructing a dynamically adjustable data transmission path through a reconfigurable data path, hardware-level switching between different recording modes of the multi-mode input module is achieved, which improves the processing speed by about 40% compared to the traditional serial architecture, optimizes system resource allocation, and improves input efficiency and mode switching flexibility in enterprise consulting scenarios.

[0047] The main control module is connected to the storage unit, which adopts a dual-mode collaborative storage architecture. The main control module monitors the current data path usage mode based on the status detection circuit, thereby dynamically allocating storage paths. The main control module includes a CRC check unit, which compares the check value after each write. If an anomaly is found, storage switching is triggered.

[0048] The main control module is connected to the power management module and is used to control the power supply strategy. The main control module monitors the current data path usage mode according to the status detection circuit, configures the corresponding channel by connecting to the enable terminal of the level conversion chip, and adjusts the power supply strategy through the power management module. For example, in handwriting mode, only the touch screen, electronic paper display, storage unit and main control module are powered, and the other trigger circuits in the multi-mode input module remain in sleep state.

[0049] Furthermore, the electronic paper display screen is connected to the main control module; the capacitive touch screen is an OGS structure integrated into the electronic paper display screen.

[0050] Specifically, the OGS structure features an electronic paper display layer at the bottom and a capacitive touchscreen sensing layer at the top, both integrated onto a single glass substrate. This design reduces air gaps, improves light transmittance and display clarity, and also makes the device thinner and lighter. The physical keyboard adopts a retractable magnetic design. When not in use, the physical keyboard can be folded and magnetically attached to the back of the device or used as a protective cover for easy carrying. It can be easily detached when in use. The physical keyboard connects via a USB interface and provides an input experience superior to on-screen software keyboards.

[0051] Furthermore, the storage unit includes an eMMC flash memory and an SD card; the eMMC flash memory is connected to the main control module via an SDIO interface, and the SD card is connected to the main control module via an SD controller.

[0052] Specifically, the eMMC flash memory is directly connected to the main control module via the SDIO interface, ensuring smooth system operation and high-frequency data writing; the SD card isolates physical layer errors through the SD controller, avoiding impact on the operational stability of the main control module. Dual-channel parallel operation can improve burst write speed and achieve dual backup. Even if a single storage unit fails (such as the SD card being accidentally removed), the eMMC flash memory can still ensure data integrity, suitable for the high reliability requirements of enterprise consulting scenarios; the main control module monitors the currently active data path through a status detection circuit and dynamically adjusts the storage strategy. For example, in handwriting mode, writing to the eMMC flash memory is prioritized, resulting in low latency and ensuring smooth handwriting.

[0053] Voice mode: Simultaneous writing to eMMC flash memory and SD card, dual backup to prevent data loss;

[0054] Keyboard input: Only writes to the SD card, resulting in small text data size and saving eMMC flash memory lifespan.

[0055] The main control module dynamically adjusts the power supply of unused storage modules through the power management module according to the current storage needs (e.g., the SD card controller is in low-power hold mode when only eMMC flash memory is used).

[0056] Furthermore, the multi-mode input module also includes an NFC identity recognition module connected to the main control module; the power management module includes an NFC antenna power supply circuit; and the storage unit is divided into isolated partitions.

[0057] Specifically, the eMMC flash memory achieves isolated partitions by dividing independent address spaces through a built-in protection controller, and the SD card uses a model that supports RPMB and security protocols (such as SD 6.0+). Access to the isolated partitions is only unlocked after the main control module's NFC verification is successful. When data is written, it is encrypted in real time by the main control module's built-in encryption engine such as AES-256, and the key is bound to the NFC identity information.

[0058] The NFC identification module can use the ST25R3916 chip. Its antenna is connected to the main control module through an LC matching network. The antenna is powered by the power management module at low power to maintain the basic radio frequency field, which is used to briefly wake up the tag and read the identification information. The main control module obtains the identification information of the NFC tag and compares it with the pre-stored information in the independent address space of the eMMC flash memory. After the verification is successful, the main control module activates the corresponding isolated partition of the storage module. After the NFC tag leaves, the main control module locks the isolated partition.

[0059] Furthermore, the power management module adopts a charging management chip that supports both wireless charging and wired fast charging.

[0060] Specifically, the chip has built-in programmable power path management and automatic input source switching circuits. Through connection with the main control module and reconfigurable data path, it realizes dynamic power supply control based on the reconfigurable data path. In this embodiment, the BQ25601D dual-mode charging management chip can be used. The wired fast charging mode is suitable for emergency power replenishment scenarios. The wireless charging mode meets the continuous power supply requirements of the charging base embedded in the conference table.

[0061] Furthermore, it also includes a communication module that supports dual-mode Bluetooth and Wi-Fi communication.

[0062] Specifically, Bluetooth communication can be implemented using the CC2642R chip, enabling point-to-point connections with mobile devices such as phones and tablets for real-time synchronization of fragmented data (such as meeting minutes snippets and voice memos); its standby power consumption is only 0.5μA, ensuring that the device remains online continuously; Wi-Fi communication can be implemented based on the AX200 chip: it can upload meeting recordings via protocols, support direct connection to enterprise cloud servers to synchronize encrypted consultation reports, and automatically turn off Bluetooth through the main control module to reduce interference when enabled.

[0063] The working principle and application principle of this utility model are as follows:

[0064] The main control module, based on the current application mode (such as handwriting, voice, or keyboard), controls the switch array within the reconfigurable data path to connect or disconnect the data links between different input peripherals and the main control module and data processing module at the hardware level. The level conversion circuit is used to match the voltage differences that may exist between different chips. The status detection circuit feeds back the path status to the main control module in real time, forming a closed-loop control that replaces the traditional fixed serial architecture and realizes hardware-level parallel and selective processing.

[0065] For high-load data streams, such as multi-channel audio acquired by a microphone array, the data path can be reconstructed to route it to the data processing module for preprocessing such as noise reduction and echo cancellation, reducing the burden on the main control module. The processed data is then handed over to the main control module.

[0066] The main control module monitors the currently active data path through the status detection circuit, dynamically executes the storage strategy, writes data to the eMMC flash memory or SD card through the dual-mode collaborative storage architecture, and sends instructions to the power management module to precisely control the power supply of each functional unit.

[0067] The device's security is achieved through an NFC identity recognition module and a storage isolation partition. The NFC antenna is powered by low power to maintain the radio frequency field. The identity tag is read through the LC matching network. After the main controller successfully compares the tags, the isolation partition is unlocked. The AES-256 encryption engine encrypts the data. The key is bound to the NFC identity. After the tag leaves, the partition is automatically locked to ensure data security.

[0068] Users interact with the multi-mode input module of the device to adapt to different enterprise consultation record scenarios. Before use, the user needs to bring the exclusive NFC tag close to the device's sensing area. After the device verifies the identity, it will automatically unlock the encrypted workspace of the user to ensure the confidentiality of consultation content.

[0069] Multi-mode record switching can be achieved during consultation record.

[0070] In the handwriting mode, the capacitive touch screen is an OGS structure integrated into the electronic paper display, and its I²C signal is directly connected to the main control module to achieve low-latency handwriting transmission when the user writes.

[0071] In the voice mode, during a meeting or interview, the user can start the voice recording function. The microphone array of the device records the voice, and after noise reduction processing by the data processing module, it is securely stored in a double-backup form to prevent the loss of key information.

[0072] Keyboard mode: When a large amount of text input is required, the user can connect the physical keyboard through the USB interface. After pressing the keys, the device switches to the keyboard mode to provide efficient and accurate typing. When not in use, the keyboard can be adsorbed on the back of the body or used as a protective cover for easy carrying.

[0073] After the record is completed, the user can manage the data through the built-in communication module. Using the Bluetooth function, fragmented information such as meeting minutes and voice memos can be quickly synchronized to a mobile phone or tablet. For a complete consultation report or large recording file, it can be encrypted and uploaded and archived to the enterprise cloud server through Wi-Fi connection.

[0074] The device supports dual-mode charging. In the office or in an emergency, it can be quickly charged through wired fast charging. In a fixed place such as a meeting room, it can be placed on a wireless charging-enabled desktop to achieve continuous power supply and ensure long-term uninterrupted use.

[0075] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that; they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A recording device for enterprise consultation, comprising a main control module, a multi-mode input module, a data processing module, a storage unit, a power management module, and an electronic paper display screen, characterized in that: The main control module and the data processing module are connected by a reconfigurable data path; the reconfigurable data path includes a switch array, a level conversion circuit, and a status detection circuit. The multi-mode input module includes a capacitive touchscreen, a microphone array, a physical keyboard, and is connected to a reconfigurable data path. The main control module is connected to the storage unit and the power management module, and is used to control the data storage method and power supply strategy. The storage unit adopts a dual-mode collaborative storage architecture.

2. The recording device for enterprise consultation according to claim 1, characterized in that: The electronic paper display screen is connected to the main control module; the capacitive touch screen is an OGS structure integrated into the electronic paper display screen.

3. The recording device for enterprise consultation according to claim 1, characterized in that: The storage unit includes an eMMC flash memory and an SD card; the eMMC flash memory is connected to the main control module through an SDIO interface, and the SD card is connected to the main control module through an SD controller.

4. The recording device for enterprise consultation according to claim 1, characterized in that: The multi-mode input module also includes an NFC identity recognition module connected to the main control module; the power management module includes an NFC antenna power supply circuit; and the storage unit is divided into isolated partitions.

5. The recording device for enterprise consultation according to claim 1, characterized in that: The power management module uses a charging management chip that supports both wireless charging and wired fast charging.

6. The recording device for enterprise consultation according to claim 1, characterized in that: It also includes a communication module that supports dual-mode Bluetooth and Wi-Fi communication.

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