Intelligent seat and data interaction system of intelligent seat

Abstract

The invention relates to the technical field of seats and intelligent homes, and discloses an intelligent seat and an interaction device of the intelligent seat, the intelligent seat comprises a seat body and an intelligent processing device arranged on the seat body, and the intelligent processing device comprises a pressure acquisition module used for acquiring a pressure value applied to the seat body by a user; the main control module is used for acquiring a pressure value and determining sitting posture data of the user according to the pressure value; the anti-disassembly detection module is connected between the pressure acquisition module and the main control module, and the anti-disassembly detection module is used for outputting a power-off signal to the main control module when monitoring that the acquisition module is disconnected from the main control module; and the main control module responds to the power-off signal and executes preset data protection operation on the pressure value and the sitting posture data. The user data of the intelligent seat can be effectively prevented from being stolen.

Description

Technical Field

[0001] The present application relates to the technical fields of seats and smart home, and particularly relates to an intelligent seat and a data interaction system for an intelligent seat. Background Art

[0002] In life scenarios, people need to sit on chairs for corresponding work or study for most of the time, that is, the human body is in a sitting position for most of the time. Since poor sitting postures can cause abnormal pressure on human bones and some internal organs, if the human body's sitting posture is incorrect for a long time, it is very likely to cause bone deformation and affect the health of internal organs. Therefore, intelligent seats that can detect the sitting posture of the human body have emerged as the times require.

[0003] However, intelligent seats will carry and process some user data (such as pressure data, sitting posture data, etc.), and these user data are very personal user data that need to be kept confidential. For some data thieves, as long as they disassemble the intelligent seat to expose the intelligent processing device, they can steal the personal data stored inside the intelligent detection device through some professional technical means.

[0004] The inventor realized that for the problem of preventing the user data of intelligent seats from being stolen, timely detecting that the intelligent seat is disassembled and thus taking timely data anti-theft measures is the key to preventing the user data of intelligent seats from being stolen. Summary of the Invention

[0005] The present application provides an intelligent seat, a data interaction system and method for an intelligent seat that can timely discover that the intelligent seat is disassembled and thus take timely data protection without adding external components, so as to solve the technical problem of the theft of user data of intelligent seats in the prior art.

[0006] In a first aspect, an intelligent seat is provided, including: a seat body and an intelligent processing device disposed on the seat body, and the intelligent processing device includes:

[0007] A pressure acquisition module for acquiring the pressure value exerted by a user on the seat body;

[0008] A main control module for acquiring the pressure value and determining the sitting posture data of the user according to the pressure value;

[0009] An anti-disassembly detection module connected between the pressure acquisition module and the main control module, where the anti-disassembly detection module is configured to output a power-off signal to the main control module when it monitors that the acquisition module is disconnected from the main control module; the main control module responds to the power-off signal and performs a preset data protection operation on the pressure value and the sitting posture data.

[0010] In the above solution, the seat body includes a seat cushion, and the pressure acquisition module includes a seat cushion sensor;

[0011] A receiving portion is provided on the seat, and the main control module and the anti-disassembly detection module are arranged in the receiving portion;

[0012] A seat cushion is provided above the receiving portion, and the seat sensor is arranged in the seat cushion. The seat sensor is connected to the anti-disassembly detection module through a flexible cable.

[0013] In the above solution, the seat body further includes a backrest, and the pressure acquisition module further includes a backrest pressure sensor arranged on the backrest; and / or,

[0014] The seat body further includes chair legs, and the pressure acquisition module further includes chair leg pressure sensors arranged on the chair legs.

[0015] In the above solution, the anti-disassembly detection module includes a first operational amplifier, a first resistor, a second resistor, and a third resistor; wherein, the output end of the first operational amplifier is connected to the main control module, the non-inverting input end of the first operational amplifier is grounded through the third resistor, and both ends of the third resistor are respectively connected to the pressure acquisition module; the inverting input end of the first operational amplifier is connected to the power supply end of the main control module; the first end of the first resistor and the first end of the second resistor are respectively connected to the inverting input end of the first operational amplifier, the second end of the first resistor is respectively connected to the voltage output end of the main control module and the pressure acquisition module, and the second end of the second resistor is grounded.

[0016] In the above solution, the intelligent processing device further includes a storage module, and the storage module is communicatively connected to the main control module through an SDIO interface or an SPI interface. The storage module is used to receive and store the pressure values and sitting posture data output by the main control module.

[0017] In the above solution, performing a preset data protection operation on the pressure values and the sitting posture data includes at least one of the following operations:

[0018] Performing an encryption process on the pressure values and the sitting posture data stored in the storage module;

[0019] Clearing the pressure values and the sitting posture data stored in the storage module;

[0020] Stopping the main control module from writing the pressure values and the sitting posture data to the storage module;

[0021] Prohibiting reading the pressure values and the sitting posture data stored in the storage module.

[0022] In the above solution, the intelligent processing device further includes a power supply battery, and the main control module further includes a voltage stabilizing sub-module and / or a charge and discharge management sub-module;

[0023] The voltage stabilizing sub-module is configured to convert the output voltage of the power supply battery into a regulated power supply voltage and output it to each module of the intelligent processing device;

[0024] The charge and discharge management sub-module is configured to manage the charging and discharging process of the power supply battery.

[0025] In the above solution, the intelligent processing device further includes a power on / off control module, the power on / off control module includes a power on / off button, and the power on / off control module is configured to control the power on or off of the intelligent processing device according to the user's operation on the power on / off button; the power on / off control module is connected to the charging interface and the USB communication interface of the main control module, and the power on / off control module is configured to control the intelligent processing device to power on when it detects that the charging interface is connected to the charging end, and further, the power on / off control module is also configured to control the intelligent processing device to power on when it detects that a USB device is connected to the USB communication interface.

[0026] In the above solution, the power on / off control module includes a power on / off button, a first switch, a second switch, a first diode, a fourth diode, a seventh diode, a fifth resistor, and a seventh resistor. Among them, the first end of the power on / off button is connected to the second pole of the second switch, the second end of the power on / off button is connected to the power supply output end of the main control module through a third diode, the first end of the power on / off button is connected to the positive pole of the seventh diode, and the second end of the power on / off button is connected to the negative pole of the seventh diode; the first pole of the second switch is connected to the USB interface of the main control module through the first diode, the first pole of the second switch is connected to the charging interface of the main control module through the fourth diode, the first pole of the second switch is grounded through the seventh resistor, the second pole of the second switch is grounded, and the third pole of the second switch is connected to the first pole of the first switch; the first pole of the first switch is connected to the power supply end of the intelligent processing device through the fifth resistor, and the second and third poles of the first switch are connected to the power supply end of the intelligent processing device.

[0027] In the above solution, the main control module further includes a low-power consumption control sub-module, and the low-power consumption control sub-module is configured to control the intelligent processing device to enter a low-power consumption state when it detects that the pressure value meets a preset condition, where the preset condition is used to indicate that there is no user on the intelligent seat.

[0028] In the above solution, the main control module includes an analog-to-digital conversion sub-module, and the intelligent processing device further includes an impedance transformation and amplification filtering circuit module, which is connected between the analog-to-digital conversion sub-module and the pressure acquisition module; the impedance transformation and amplification filtering circuit module includes: a second operational amplifier, a third operational amplifier, and a fourth operational amplifier. The output end of the second operational amplifier is connected to the analog-to-digital conversion sub-module, the positive-phase input end of the second operational amplifier is connected to the output end of the third operational amplifier, the negative-phase input end of the second operational amplifier is connected to the output end of the fourth operational amplifier, the third operational amplifier and the fourth operational amplifier form a buffer, and the positive-phase input ends of the third operational amplifier and the fourth operational amplifier are respectively connected to the pressure acquisition module.

[0029] In the above solution, the intelligent processing device further includes an analog-to-digital conversion module, which is connected between the pressure acquisition module and the main control module. The analog-to-digital conversion module is used to receive the working mode instruction output by the main control module, and feedback the pressure value to the main control module according to the corresponding working mode of the working mode instruction.

[0030] In the above solution, the intelligent processing device further includes a sound generation module, which is connected to the main control module and is used to receive the first reminder instruction output by the main control module, and output corresponding sound signals and / or vibration signals according to the first reminder instruction;

[0031] and / or,

[0032] The intelligent processing device further includes a light generation module, which is connected to the main control module and is used to receive the second reminder instruction output by the main control module, and output corresponding light signals according to the second reminder instruction.

[0033] In a second aspect, a data interaction system for an intelligent seat is provided. The device includes the above intelligent seat and a user terminal. The intelligent seat is used to transmit pressure values and / or sitting posture data to the user terminal or the user terminal APP in real time or non-real time.

[0034] In the above solutions of the intelligent seat and the data interaction system of the intelligent seat, the pressure value applied by the user on the seat body can be collected through the pressure acquisition module; the pressure value can be obtained through the main control module, and the sitting posture data of the user can be determined according to the pressure value; through the anti-disassembly detection module connected between the pressure acquisition module and the main control module, when the displacement distance of the pressure acquisition module relative to the main control module is greater than a preset threshold, the anti-disassembly detection module is used to disconnect the connection with the pressure acquisition module and output a power-off signal to the main control module; the main control module responds to the power-off signal and executes a preset data protection operation. In this application, for the problem of preventing personal data leakage of the intelligent processing device, by connecting the anti-disassembly detection module between the pressure acquisition module (pressure sensor) and the main control module, when the pressure acquisition module is displaced relative to the seat body, the connection between the anti-disassembly detection module and the pressure acquisition module will be disconnected, so that the anti-disassembly detection module will send a power-off signal to the main control module, and the main control module responds to the power-off signal and executes a preset data protection operation on the intelligent processing device, which can realize the data protection of the intelligent processing device by using the original circuit structure of the intelligent processing device without adding physical components. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0036] Figure 1 is a schematic diagram of an application environment of an intelligent seat in an embodiment of the present application;

[0037] Figure 2 is a schematic diagram of a pressure sensor on the seat of an intelligent seat in an embodiment of the present application;

[0038] Figure 3 is a circuit block diagram of an intelligent seat in an embodiment of the present application;

[0039] Figure 4 is a schematic diagram of the seat structure of an intelligent seat in an embodiment of the present application;

[0040] Figure 5 is a schematic circuit diagram of the anti-disassembly detection module of an intelligent seat in an embodiment of the present application;

[0041] Figure 6 is a schematic circuit diagram of the connection between the protection module and the pressure acquisition module of an intelligent seat in an embodiment of the present application;

[0042] Figure 7It is a schematic circuit diagram of the storage module of the intelligent seat in an embodiment of the present application;

[0043] Figure 8 It is a schematic circuit diagram of the circuit connected to the power-on / off control module of the intelligent seat in an embodiment of the present application;

[0044] Figure 9 It is a schematic circuit diagram of the impedance transformation and amplification filtering circuit module of the intelligent seat in an embodiment of the present application;

[0045] Figure 10 It is a schematic circuit diagram of the analog-to-digital conversion module of the intelligent seat in an embodiment of the present application;

[0046] Figure 11 It is a schematic circuit diagram of the sound generation module of the intelligent seat in an embodiment of the present application;

[0047] Figure 12 It is a schematic circuit diagram of the light generation module of the intelligent seat in an embodiment of the present application;

[0048] Figure 13 It is a circuit block diagram of the interaction between the intelligent processing device of the intelligent seat and the terminal in an embodiment of the present application. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0050] The intelligent seat provided by the embodiments of the present application can be used to detect the sitting posture data of users. In the daily office and learning scenarios of users, the sitting posture data of users can be detected through the intelligent seat, so as to urge users to develop good sitting posture habits and prevent bone deformation caused by bad sitting postures or lesions caused by long-term wrong squeezing of internal organs. The intelligent seat can also be applied to the medical field, for example, used to detect the spinal health of the human body by detecting the sitting posture of the human body.

[0051] The data anti-theft measures adopted by existing intelligent devices can be to install an external anti-disassembly structure on the intelligent device. By monitoring whether the intelligent device is disassembled through the external anti-disassembly structure, corresponding data anti-theft measures can be triggered. That is, the anti-disassembly structure of existing intelligent devices generally adds an additional structure on the basis of the intelligent device. For example, the anti-disassembly device includes: a microprocessor module, gravity detection, and disassembly detection modules. The gravity detection and disassembly detection modules sense the acceleration conditions on the three axes of the device through an acceleration sensor, convert the change amount of the acceleration in each dimension of the device into an electrical signal, and transmit it to the microprocessor module. The microprocessor module can determine whether the device is disassembled.

[0052] As Figure 1 shown, the intelligent seat provided by the embodiment of the present application may include a seat body 1. The seat body may include a seat surface, a backrest, and chair legs. A seat surface pressure sensor 11, a backrest pressure sensor 12, and a chair leg pressure sensor 13 are respectively provided on the seat surface, the backrest, and the chair legs. The pressure sensor collects the pressure value applied to the seat. The main control module of the intelligent processing device obtains the above pressure value, and obtains the user's sitting posture information by running a pre-loaded or stored sitting posture detection program. In a specific application scenario, the pressure sensors on the seat body can be set according to specific scenario requirements. For example, as Figure 2 shown, a plurality of seat surface sensors 11 are arranged on the seat surface. At the same time, after obtaining the pressure value and the sitting posture information, the main control module can store the pressure value and the sitting posture information locally in the intelligent processing device, or transmit the pressure value and the sitting posture information to an external terminal through a data communication module. Among them, the external terminal can be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, and portable wearable devices. In the present application, for the problem of personal data leakage prevention of the intelligent processing device, by connecting the anti-disassembly detection module between the pressure acquisition module (pressure sensor) and the main control module, when the pressure acquisition module is displaced relative to the seat body, it will cause the disconnection between the anti-disassembly detection module and the pressure acquisition module. Therefore, the anti-disassembly detection module will send a power-off signal to the main control module, and the main control module responds to the power-off signal to perform a preset data protection operation on the intelligent processing device, which can realize the data protection of the intelligent processing device by using the original circuit structure of the intelligent processing device without adding physical components. The present application will be described in detail below through specific embodiments.

[0053] Please refer to Figure 3 shown, Figure 3 shows a circuit block diagram of the intelligent processing device of the intelligent seat provided by the embodiment of the present application. The intelligent seat provided by the embodiment of the present application may include a seat body and an intelligent processing device provided on the seat body. The intelligent processing device includes:

[0054] A pressure acquisition module for acquiring the pressure value applied by a user to the seat body;

[0055] A main control module for obtaining the pressure value and determining the sitting posture data of the user according to the pressure value;

[0056] An anti-disassembly detection module is connected between the pressure acquisition module and the main control module. The anti-disassembly detection module is used to output a power-off signal to the main control module when it detects that the acquisition module is disconnected from the main control module. The main control module responds to the power-off signal and performs a preset data protection operation on the pressure value and the sitting posture data.

[0057] It can be understood that the pressure acquisition module can be a pressure sensor. The pressure sensor can be a strain-type pressure sensor or a capacitive pressure sensor. Among them, when a force is applied to the strain-type pressure sensor, the elastic element will deform, resulting in different resistance values. The change in resistance value will indirectly cause a change in voltage. The change in pressure can be deduced and calculated through the change in voltage, thus realizing the acquisition of the pressure value. When a force is applied to the capacitive pressure sensor, a change in capacitance will occur. The pressure value can be deduced and calculated through the change in capacitance, thus realizing the acquisition of the pressure value. Since detecting the change in capacitance requires the circuit to apply an AC excitation source with a fixed frequency, when the capacitance changes, the frequency will change. By detecting the change in frequency, the change in capacitance can be obtained, and the pressure value can be indirectly obtained. Therefore, the circuit control of the capacitive pressure sensor is more complex than that of the strain-type pressure sensor.

[0058] The main control module is responsible for the arithmetic processing and control of each part of the intelligent processing device. The main control module can be an MCU chip customized according to specific scenarios, such as a Bluetooth SOC chip integrating the Bluetooth transmission physical layer on the MCU.

[0059] The anti-disassembly detection module can be an anti-disassembly detection circuit connected to the pressure acquisition module and the main control module. This circuit can be integrated with the main control module on a circuit board. When the pressure acquisition module is disconnected from the main control module, this circuit can detect it and output a power-off signal to the main control module.

[0060] Specifically, in order to better collect the pressure applied to the seat, the pressure acquisition module is generally arranged on the surface of the seat. For example, it is arranged in the seat cushion of the seat or in the back cushion of the seat back. The main control module and the anti-disassembly detection module are arranged in the accommodating structure formed on the seat body. When internal or external forces cause the wiring terminals of the pressure acquisition module and the main control module to separate, it will cause corresponding displacement of the pressure acquisition module. For example, mechanical vibration during transportation, or when an external force attempts to disassemble and steal user privacy data. If someone attempts to disassemble the intelligent processing device, they must first disassemble the pressure acquisition module. The pressure acquisition module and the anti-disassembly detection module are connected by a flexible cable. By controlling the length of the flexible cable, when the pressure acquisition module is disassembled, the anti-disassembly detection module will be disconnected from the pressure acquisition module due to the limitation of the flexible cable length. At this time, the anti-disassembly detection module will generate a power-off signal to the main control module, and thus the main control module will respond to this power-off signal and perform preset data protection operations. Here, the data protection operations can include encrypting or directly deleting the collected pressure values and the generated attitude data, cutting off the upload of the pressure values of the pressure acquisition module, stopping the operation of the user's sitting posture, and recording the current disconnection state (disassembly data), etc.

[0061] In this embodiment, by using the original structural elements of the intelligent processing device, the disassembly monitoring of the intelligent processing device is realized, and thus the problem of how to prevent the leakage of the user's core privacy data is solved. Since the main control module can record the disconnection state data when the main control module and the pressure acquisition module are disconnected, that is, the disassembly data, therefore, for after-sales problems caused by the disassembly of the pressure acquisition module and the main control module, the stored disassembly data can be accessed for tracking and liability determination.

[0062] In some embodiments, the seat body may include a seat, a seat cushion is provided on the seat, an accommodating part is provided on the seat, and the main control module and the anti-disassembly detection module are arranged in the accommodating part; the pressure acquisition module includes a seat sensor, the seat sensor is arranged in the seat cushion, and the seat sensor is connected to the anti-disassembly detection module through a flexible cable; when the displacement distance of the seat sensor relative to the main control module is greater than a preset threshold, the seat sensor is disconnected from the main control module.

[0063] Among them, the seat sensor is preferably a multi-piece structure, that is, a plurality of sensors are provided on the seat (see Figure 2 ), the plurality of sensors can be connected to each other, and the collected pressure values are transmitted to the main control module through a transmission channel, or the plurality of sensors are independent of each other, without interference, and each transmits the pressure value it collects to the main control module. The number and data transmission method of the seat sensors can be set according to specific situations.

[0064] It can be understood that the main control module and the anti-disassembly detection module are arranged in the accommodating part located under the seat cushion. If one wants to access the main control module, it is necessary to remove the seat cushion, that is, the seat sensor. Also, since the seat sensor and the anti-disassembly detection module are connected by a cable, by reasonably setting the length of the cable, it can be achieved that when the seat cushion is removed, due to the limitation of the cable (the cable is short), the connection between the main control module and the seat sensor is disconnected, thereby triggering the anti-disassembly detection module to output a disconnection message to the main control module.

[0065] Specifically, as Figure 4 shown, the seat structure may include a bottom shell 21, a support plate 22, a segmented intermediate layer 23, a sponge layer 24, and a fabric layer 25. Among them, the sponge layer 24 and the fabric layer 25 form the seat cushion, and the bottom shell 21, the support plate 22, and the segmented intermediate layer 23 form the accommodating part for the main control module and the anti-disassembly detection module. The main control module and the anti-disassembly detection module are arranged between the support plate 22 and the segmented intermediate layer 23.

[0066] In this embodiment, the main control module and the anti-disassembly detection module are arranged at the seat position. First, the seat of the seat body occupies a large space and has a simple structure, so it is relatively convenient to accommodate the main control module and the anti-disassembly detection module. Second, the seat is located in a planar space structure. Arranging the main control module and the anti-disassembly detection module on the seat has a relatively simple processing technology. Third, the main control module and the anti-disassembly detection module are arranged under the seat cushion, so the connection line distance between the main control module and the seat sensor is short, and the design of the connection cable is also relatively simple, and it is relatively easy to disconnect the connection between the two when the seat cushion is displaced relative to the main control module.

[0067] In some embodiments, the seat body further includes a backrest, and the pressure acquisition module further includes a backrest pressure sensor arranged on the backrest; and / or, the seat body further includes chair legs, and the pressure acquisition module further includes chair leg pressure sensors arranged on the chair legs (see Figure 1 ).

[0068] It can be understood that the backrest pressure sensor and the chair leg pressure sensor can be electrically connected to the seat sensor respectively, or can be independent of each other (insulated from each other). Similarly, the backrest pressure sensor and the chair leg pressure sensor can be of a one-piece structure or a multi-piece structure similar to the seat sensor.

[0069] In this embodiment, pressure sensors can be respectively arranged at the seat position, the backrest position, and the seat position of the seat body to detect the pressure values exerted on the seat by multiple body parts of the human body, thereby improving the accuracy of sitting posture detection.

[0070] Furthermore, for the convenience of disassembly and cleaning, both the backrest and the seat cushion of the intelligent seat can be provided with detachable cushions, and the pressure sensors can be integrated on the detachable cushions, which is more convenient.

[0071] In an application scenario, pressure sensors are arranged at the backrest, seat cushion and chair legs of a smart seat. A number of pressure sensors are evenly distributed in the form of an array on the backrest and seat cushion of the smart seat. The shape, size, spacing and quantity of the pressure sensors can be dynamically adjusted according to the specific shape and requirements of the seat body to meet the need for reasonably and accurately collecting pressure. By receiving the pressure signals of the user on the seat, seat back and seat cushion, and based on the pressure signals, the pressure applied by the user to a number of pressure sensors is collected.

[0072] After the user sits on the smart seat, they often do not contact all the pressure sensors. Therefore, it is necessary to locate the effective pressure sensors on the smart seat and determine the user's sitting posture data through the effective pressure sensors.

[0073] Specifically, by collecting the pressure of a single pressure sensor one by one or simultaneously, and presetting a pressure threshold and a preset time, according to the pressure collected within the preset time, it is judged whether the pressure collected within the preset time is all greater than the preset pressure threshold. If the pressure collected by the pressure sensor within the preset time is all greater than the preset pressure threshold, then it is confirmed that the pressure sensor is an effective pressure sensor, and at the same time, the effective pressure sensor will be located. Or, according to the number of times that the pressure collected within the preset time is greater than the preset pressure threshold, it is judged whether the number of times is greater than the preset quantity threshold to determine whether the pressure sensor is an effective pressure sensor and locate the effective pressure sensor.

[0074] In some embodiments, the main control module includes a Bluetooth sub-module and / or a USB sub-module. The Bluetooth sub-module is used for communicating with a preset terminal in Bluetooth mode; the USB sub-module is used for communicating with the preset terminal in USB mode.

[0075] It can be understood that the main control module is a main control module (MCU) integrated with a Bluetooth hardware physical layer and a USB communication physical layer, and can interact with the outside through the Bluetooth hardware physical layer and the USB communication physical layer. The Bluetooth sub-module can realize the function of transmitting data outward. For example, it transmits the collected pressure value to an external terminal or an external terminal APP; it can also be used as an external instruction receiving module to realize the control of the sitting posture detection device by the external terminal. For example, it receives instructions such as power-on and detection output by the external terminal and realizes corresponding functions according to these instructions.

[0076] Specifically, the main control module can be a main control chip (MCU) integrated with a Bluetooth physical layer, that is, a Bluetooth SOC chip. The Bluetooth SOC chip can generate voltages of 1.2V, 1.4V, and 1.8V, which can be used inside and outside the Bluetooth SOC chip. There are also external test points such as SWDIO and SWCLK on the Bluetooth SOC chip for program burning and debugging. The peripheral IO ports are all connected to each peripheral device to achieve the control function of the entire device.

[0077] As Figure 4 and 5 shown, in an embodiment, the anti-disassembly detection module includes a first operational amplifier U1, a third resistor R3, a first resistor R1, and a fifth resistor R5. The output end of the first operational amplifier U1 is connected to the main control module. The non-inverting input end of the first operational amplifier U1 is grounded through the third resistor R3, and both ends of the third resistor R3 are respectively connected to the pressure acquisition module; the inverting input end of the first operational amplifier U1 is connected to the power supply terminal of the main control module through the first resistor R1; the first end of the first resistor R1 is connected to the first end of the fifth resistor R5, the second end of the first resistor R1 is connected to the pressure acquisition module, and the second end of the fifth resistor R5 is grounded.

[0078] Among them, the pressure acquisition module is a strain type pressure sensor. The circuit control of this strain type pressure sensor is relatively simple. Different sitting postures will generate different voltage signal outputs for a single pressure sensor in a certain area. This signal is output to the main control module, and after being judged by the internal algorithm of the main control module, the sitting posture can be obtained.

[0079] The circuit working principle of the anti-disassembly detection module is as follows: The main control module and the pressure acquisition module are electrically connected through a cable. Since the cable has a reasonable length, when the pressure acquisition module is displaced, the cable between the main control module and the pressure acquisition module will be unplugged, that is, the two are disconnected. The positive-phase potential of the first operational amplifier U1 will be pulled down by the third resistor R3 and be lower than the reverse potential of the first operational amplifier U1. Therefore, the first operational amplifier U1 outputs a low potential to the main control module (MCU)_IO1; when it is not disassembled, since the value of the third resistor R3 is much larger than the resistance value of the pressure sensor, the positive-phase voltage of the first operational amplifier U1 is determined by the two voltage-dividing resistors of the pressure sensor. By reasonably selecting the resistance values of the first resistor R1 and the fifth resistor R5, the positive-phase voltage of the first operational amplifier U1 can be greater than the reverse voltage when it is not disassembled, and the first operational amplifier U1 outputs a high level, reliably detecting whether it is disassembled. The main control module judges whether the pressure acquisition module is disassembled according to the potential level output by the first operational amplifier U1.

[0080] In some embodiments, the intelligent processing device further includes a storage module. The storage module is communicatively connected to the main control module through an SDIO interface or an SPI interface. The storage module is configured to receive and store the pressure value and sitting posture data output by the main control module.

[0081] As Figure 7 shown, the storage module J13 can be a storage device such as a TF card, an SD card, or a large-capacity flash. For the storage module J13, if communicating using the SPI interface, the eighty-first resistor R81, the eighty-second resistor R82, the eighty-fourth resistor R84, and the eighty-fifth resistor R85 need to be connected as current-limiting resistors. If communicating using the SDIO interface, the sixty-eighth resistor R68, the sixty-ninth resistor R69, the seventy-first resistor R71, the seventy-third resistor R73, the seventy-fourth resistor R74, and the seventy-fifth resistor R75 are connected as current-limiting resistors. Note: The current-limiting resistors for both ports are shown in the drawings. In applications, only the current-limiting resistors corresponding to the ports need to be used. The storage module J13 is provided with an identification pin (pin 9) for card insertion. If a memory card is inserted, the identification pin for card insertion outputs a low level to the main control module (MCU). The main control module (MCU) can determine whether a card is inserted based on the status of this port. The thirtieth capacitor C30 and the thirty-first capacitor C31 are used as filter capacitors. The seventy-ninth resistor R79 and the eighty-sixth resistor R86 are used as pull-up resistors to set the power-on state or the initial level of the external port IO during the reset of the main control module (MCU).

[0082] In this embodiment, using the SDIO interface or the SPI interface for communication to achieve large-capacity data storage is beneficial to reducing the complexity of the main control module selection, thereby reducing the material cost and the software development complexity.

[0083] In some embodiments, a preset data protection operation is performed on the pressure value and sitting posture data, including at least one of the following operations:

[0084] Performing an encryption process on the pressure value and sitting posture data stored in the storage module;

[0085] Clearing the pressure value and sitting posture data stored in the storage module;

[0086] Stopping the main control module from writing the pressure value and sitting posture data to the storage module;

[0087] Prohibiting reading the pressure value and sitting posture data stored in the storage module.

[0088] It can be understood that preventing data theft can be achieved by encrypting or clearing the stored pressure value and sitting posture data. Stopping the main control module from writing to the storage module can avoid data leakage during transmission. Prohibiting reading the storage module is also to protect the data from being stolen.

[0089] In this embodiment, any of the above data protection operations can be implemented by a software program, and it is relatively simple to implement the software program. Therefore, the data protection operations in this embodiment can be implemented without adding circuit hardware to the intelligent processing device. At the same time, the response speed of the above data protection operations is fast, thereby improving the accuracy and efficiency of the main control module for data protection operations.

[0090] In some embodiments, the intelligent processing device further includes a power supply battery, and the main control module further includes a voltage stabilization sub-module and / or a charge and discharge management sub-module. The voltage stabilization sub-module is used to convert the output voltage of the power supply battery into a regulated power supply voltage and output it to each module of the intelligent processing device;

[0091] The charge and discharge management sub-module is used to manage the charge and discharge process of the power supply battery.

[0092] Among them, the voltage stabilization sub-module can be a voltage stabilization chip integrated on the main control module, which can stabilize the voltage (5V) output from the power supply terminal (such as a battery) to 3.3V to provide the voltage for each part of the intelligent processing device.

[0093] The charge and discharge management sub-module can control the charging current and full charge voltage of the power supply battery by running a program. By reasonably setting the charge and discharge of the battery, the service life of the battery can be extended. The flexibility and scalability of the charge and discharge management sub-module are very strong, and it can adapt to the charging management of batteries with different rated voltages. Generally, a conventional 5V charger is used to charge the battery.

[0094] It can be understood that by integrating the voltage stabilization sub-module and the charge and discharge management sub-module inside the main control module in this embodiment, the external voltage stabilization circuit and charge and discharge management circuit can be omitted, which is beneficial to the miniaturization of the product.

[0095] In some embodiments, the intelligent processing device further includes a power on / off control module. The power on / off control module includes a power on / off button. The power on / off control module is used to control the power on or off of the intelligent processing device according to the user's operation on the power on / off button; the power on / off control module is connected to the charging interface and USB communication interface of the main control module. The power on / off control module is used to control the power on of the intelligent processing device when it detects that the charging interface is connected to the charging terminal, and the power on / off control module is further used to control the power on of the intelligent processing device when it detects that a USB device is connected to the USB communication interface.

[0096] In some embodiments, the power-on / off control module includes a power-on / off button K1, a first switching element Q1, a second switching element Q2, a first diode D1, a fourth diode D4, a seventh diode D7, a fifth resistor R5, and a seventh resistor R7. Among them, the first end of the power-on / off button K1 is connected to the second pole of the second switching element Q2, the second end of the power-on / off button K1 is connected to the power supply output end of the main control module through a third diode, the first end of the power-on / off button K1 is connected to the positive electrode of the seventh diode D7, and the second end of the power-on / off button K1 is connected to the negative electrode of the seventh diode D7; the first pole of the second switching element Q2 is connected to the USB interface of the main control module through the first diode D1, the first pole of the second switching element Q2 is connected to the charging interface of the main control module through the fourth diode D4, the first pole of the second switching element Q2 is grounded through the seventh resistor R7, the second pole of the second switching element Q2 is grounded, and the third pole of the second switching element Q2 is connected to the first pole of the first switching element Q1; the first pole of the first switching element Q1 is connected to the power supply end of the intelligent processing device through the fifth resistor R5, and the second and third poles of the first switching element Q1 are connected to the power supply end of the intelligent processing device.

[0097] Among them, the first switching element and the second switching element can be MOS transistors. The first pole is the gate (G) of the MOS transistor, the second pole is the source (S) of the MOS transistor, and the third pole is the drain (D) of the MOS transistor.

[0098] In this embodiment, one-key power-on and power-off are realized through the power-on / off button, and the intelligent processing device is powered on through the connection state of the charging interface or the USB communication interface.

[0099] As Figure 8 shown, the circuit working principle of the power-on / off control module:

[0100] The power key KEY_POWER is connected to the power supply terminal of the main control module. The second terminal of the power-on / off key K1 is connected to the power supply terminal of the main control module through the third diode D3. The third diode D3 can prevent the high voltage of the battery from flowing to the IO port of the power key KEY_POWER, protecting the main control module. The first terminal of the power-on / off key K1 is connected to the source electrode of the second switching device Q2. The first terminal of the power-on / off key K1 is connected to the positive electrode of the seventh diode D7, and the second terminal of the power-on / off key K1 is connected to the negative electrode of the seventh diode D7. The seventh diode D7 serves as an electrostatic protection device to prevent electrostatic damage to the switching device or the main control module caused by manual pressing of the key. The source electrode of the second switching device Q2 is grounded, and the gate electrode is connected to the fourth diode D4 and the first diode D1. The fourth diode D4 and the first diode D1 are connected to the USB communication interface of the main control module. The source electrode of the first switching device Q1 is connected to the power supply battery, the gate electrode is connected to the power supply battery through the fifth resistor R5, and the drain electrode is connected to the VBAT port of the main control module. The function of the fifth resistor R5 is that when the second switching device Q2 is turned off, the gate voltage of the first switching device Q1 is pulled to the battery voltage by the fifth resistor R5, preventing mis-conduction.

[0101] Among them, when the intelligent processing device is in the shutdown state, the first switching device Q1 is not conducting, the device is not powered on, and the shutdown current is extremely small.

[0102] When the power-on / off key K1 is pressed, the gate electrode of the first switching device Q1 will be at a low potential through the third diode D3. Since the source electrode of the first switching device Q1 is connected to the power supply battery, the gate-source voltage of the first switching device Q1 is less than 0 and meets the turn-on voltage, so the first switching device Q1 conducts, and the device is powered on. After the main control module (MCU) is reset, during the period when the key is pressed, it will be detected that KEY_POWER is at a low potential through the third diode D3. Therefore, the main control module sets the output of PWR_HOLD to a high level. After passing through the ninth resistor R9 and then through the fourth diode D4, a voltage division is formed with the eleventh resistor R11. Since the resistance value of the eleventh resistor R11 is very large, a high potential can be obtained at the gate electrode of the second switching device Q2. Since the source electrode of the second switching device Q2 is grounded and the gate-source voltage is greater than the turn-on voltage, the second switching device Q2 conducts, and the drain electrode of the second switching device Q2 is pulled to a low potential. At this time, the first switching device Q1 continues to conduct, maintaining the power supply of the device all the time, realizing the power-on of the device. Among them, due to the functions of the first diode D1 and the fourth diode D4, when a high-voltage adapter or communication interface is inserted, the 5V voltage will not be fed back to the PWR_HOLD port of the main control module because the diode is reverse-biased and cut off, thus protecting the main control module (MCU) from damage.

[0103] When the charging interface is inserted into a charging device for charging or when the 5V USB communication interface is connected to a USB device, VBUS or 5V_2 will output a high potential, which can turn on the second switching device Q2, and thus turn on the first switching device Q1 to power on the device.

[0104] When there is no charging on the charging interface and no USB communication interface is inserted into the USB communication port, if the device is currently in the powered-on state, pressing K1 once, the main control module (MCU) will recognize that the previous state was powered on and this press belongs to power-off, then it will output a low potential on the PWR_HOLD pin. As a result, the second switching device Q2 cannot be turned on due to the gate voltage being at a low potential, and thus the gate of the first switching device Q1 is at a high potential and also cannot be turned on, so the device loses power and shuts down.

[0105] In some embodiments, the main control module further includes a low-power control sub-module, which is used to control the intelligent processing device to enter the low-power state when it detects that the pressure value meets the preset conditions, where the preset conditions are used to indicate that there is no user on the intelligent seat.

[0106] Among them, the preset conditions may include that the pressure value (especially the pressure value on the seat) obtained by the main control module is less than the preset pressure value and the duration is greater than the preset time. That is, according to the pressure value and the change value of the pressure value over a period of time, it is determined whether there is a user on the intelligent seat.

[0107] In this embodiment, when it is detected that no one is sitting on the chair, it automatically shuts down or operates in low power, greatly improving the static battery life of the power supply battery of the intelligent processing device.

[0108] In some embodiments, the main control module includes an analog-to-digital conversion sub-module, and the intelligent processing device further includes an impedance transformation and amplification filtering circuit module, which is connected between the analog-to-digital conversion sub-module and the pressure acquisition module; the impedance transformation and amplification filtering circuit module includes: a second operational amplifier U2, a third operational amplifier U3U3, a fourth operational amplifier. The output terminal of the second operational amplifier U2 is connected to the analog-to-digital conversion sub-module, the non-inverting input terminal of the second operational amplifier U2 is connected to the output terminal of the third operational amplifier U3U3, the inverting input terminal of the second operational amplifier U2 is connected to the output terminal of the fourth operational amplifier, the third operational amplifier U3U3 and the fourth operational amplifier form a buffer, and the non-inverting input terminals of the third operational amplifier U3U3 and the fourth operational amplifier are respectively connected to the pressure acquisition module.

[0109] Such as Figure 9As shown in the figure, the circuit working principle of the impedance transformation and amplification filtering circuit module is as follows: The two ends of the strain type pressure sensor are respectively input to the non-inverting input terminals of the third operational amplifier U3 and the fourth operational amplifier U4 through the current limiting resistor, the seventeenth resistor R17 and the fourteenth resistor R14. The third operational amplifier U3 and the fourth operational amplifier U4 are connected in a buffer mode to achieve a high input impedance. Then, differential amplification is realized through the eleventh resistor R11, the sixteenth resistor R16, the twelfth resistor R12, and the thirteenth resistor R13. The gain is determined by the thirteenth resistor R13 and the twelfth resistor R12. The amplified voltage signal is directly connected to the acquisition port of the analog-to-digital conversion sub-module, and the pressure value is indirectly measured through the acquired voltage. Among them, the sixty-fifth capacitor C66, together with the seventeenth resistor R17, the sixty-seventh capacitor C67, and R14, form a low-pass filter circuit to filter out the common-mode high-frequency components. The sixty-fifth capacitor C66, the sixteenth resistor R16, and the twelfth resistor R12 together form a differential-mode low-pass filtering method to filter out the differential-mode interference, thereby improving the signal quality of the pressure value.

[0110] In this embodiment, the pressure acquisition module can be a half-bridge or full-bridge strain type pressure sensor. Each pressure sensor can adopt a differential acquisition method and be input to the analog-to-digital conversion sub-module. The analog-to-digital conversion sub-module is used in cooperation with the impedance transformation and amplification filtering circuit module, and can realize impedance transformation, common-mode filtering, differential filtering, and amplification. It can also convert the differential input of the pressure sensor into a single-ended output circuit. The circuit composed of the analog-to-digital conversion sub-module and the impedance transformation and amplification filtering circuit module has the advantages of high input impedance and good low-frequency response, can realize common-mode filtering and differential-mode filtering, and has a high signal-to-noise ratio.

[0111] In some embodiments, the intelligent processing device further includes an analog-to-digital conversion module. The analog-to-digital conversion module is connected between the pressure acquisition module and the main control module. The analog-to-digital conversion module is used to receive the working mode instruction output by the main control module, and feedback the pressure value to the main control module according to the working mode instruction by adopting the corresponding working mode.

[0112] Among them, the analog-to-digital conversion module is an external analog-to-digital conversion module, that is, the analog-to-digital conversion module is in a connection relationship with the main control module, rather than being integrated inside the main control module. The working mode instruction output by the main control module can specify that the working mode of the analog-to-digital conversion module can be a differential input mode or a single-ended input mode. The analog-to-digital conversion module processes the pressure value in the specified working mode and then feeds it back to the main control module;

[0113] As Figure 9 shown, the circuit working principle of the analog-to-digital conversion module:

[0114] The analog-to-digital conversion module U5 communicates with the main control module through two data lines, P2_DATA and P2_CLK. The main control module controls the internal working mode of the ADC chip and the ADC chip transmits the collected results to the main control module. The output terminals of a group of pressure sensors (two sensors) are respectively transmitted to the analog-to-digital conversion module (ADC chip) after passing through their respective connected capacitors and connected to the thirty-fifth resistor R35 and the thirty-ninth resistor R39. A group of pressure sensors can output a pair of differential signals. In the figure, the output terminals of another group of pressure sensors are respectively connected to the thirty-third resistor R33 and the thirty-eighth resistor R38. The capacitors connected to the pressure sensors are used for electrostatic protection and filtering. The thirty-fifth resistor R35 and the thirty-ninth resistor R39, and the thirty-third resistor R33 and the thirty-eighth resistor R38 are used for current limiting to protect the analog-to-digital conversion module (ADC chip). The sixteenth capacitor C16 and the thirty-fifth resistor R35, the thirty-ninth resistor R39, and the fifteenth capacitor C15 and the thirty-third resistor R33, the thirty-eighth resistor R38 together constitute an RC filter to filter high-frequency signals. The twenty-third resistors R23 and R26 are used as current-limiting protection resistors. The first capacitor C12 is a filtering capacitor. The pin 1 of the analog-to-digital conversion module U5 is connected to the power supply. The pin 2 of the analog-to-digital conversion module U5 is connected to a current-limiting resistor R21 to the base of the triode J2 for adjusting the internal regulated output. The triode J2 is used as an adjustment tube for internal regulated voltage adjustment. When the internal output voltage is too high, the duty cycle of the pin 2 of the analog-to-digital conversion module U5 is reduced. When the output voltage is too low, the duty cycle of the analog-to-digital conversion module U5 is increased. R34 and R27 are used for output voltage setting. The tenth capacitor C10, the eighth capacitor C8, and the first capacitor C1 are filtering capacitors. The fifteenth pin of the analog-to-digital conversion module U5 can be selectively connected to the fifteenth resistor R15 or the eighteenth resistor R18 for setting different sampling rates.

[0115] In this embodiment, the analog-to-digital conversion module is a 24-bit high-precision ADC chip, which can achieve accurate acquisition of microvolt small signals, obtain high-resolution pressure values, and one analog-to-digital conversion module can collect up to two groups of sensor signals. Different sizes of gains can be configured through software, making it flexible to use. It can also set the working mode of differential input or single-ended input and can collect small signal types in multiple fields.

[0116] In some embodiments, the intelligent processing device further includes a sound generation module. The sound generation module is connected to the main control module and is used to receive the first reminder instruction output by the main control module and output corresponding sound signals and / or vibration signals according to the first reminder instruction.

[0117] Such as Figure 11As shown in the figure, the sound generation module includes: a sound switch Q7, a speaker SPK1, a forty-ninth resistor R49, a forty-first resistor R41, a forty-second resistor R42, a discharge diode D25, and a filter capacitor C58. The main control module is connected to the first pole of the sound switch Q7 through the forty-ninth resistor R49. The second pole of the sound switch Q7 is grounded. A forty-first resistor R41 is connected between the first pole and the second pole of the sound switch Q7. The third pole of the sound switch is connected to the speaker through the forty-second resistor R42. The discharge diode D25 is connected in parallel with the speaker. The positive electrode of the discharge diode D25 is connected to one side of the filter capacitor C58, and the other side of the filter capacitor C58 is grounded.

[0118] Among them, the main control module outputs high and low levels of a certain frequency through the speaker drive interface SPK_CTOL, which can drive the speaker or buzzer to emit sound. The forty-ninth resistor R49 is a current-limiting resistor. The forty-first resistor R41 is a pull-down resistor of the sound switch Q7, which is used to stabilize the voltage of the gate and avoid the generation of unequal positive and negative charges at the gate-source terminal, resulting in the breakdown of the sound switch Q7. The forty-second resistor R42 is a current-limiting resistor, which is used to protect the speaker SPK1, the sound-emitting device. When the sound switch Q7 changes from on to off, the speaker SPK1 is an inductive device, and a high voltage will be generated at the drain of the sound switch Q7. In order to avoid the breakdown of the sound switch Q7 by this high voltage, the discharge diode D25 is used to form a discharge circuit for the speaker SPK1 to reduce the peak voltage.

[0119] In some embodiments, the intelligent processing device further includes a light generation module, which is connected to the main control module and is used to receive the second reminder instruction output by the main control module and output corresponding optical signals according to the second reminder instruction.

[0120] As Figure 12 shown, the light generation module includes at least two light generation sub-modules that output different colors of light. The circuit structures of each light generation sub-module are the same. Taking the green light generation sub-module as an example, it includes a switch J20 and a light-emitting diode D21. The first pole of the switch is connected to the instruction output terminal of the main control module. The second pole of the switch is grounded. The third pole of the switch is connected to the positive electrode of the light-emitting diode. A forty-sixth resistor R46 is connected between the first pole of the switch and the instruction output terminal of the main control module. One end of the forty-fifth resistor R45 is grounded, and the other end is connected to the connection terminal of the main control module. The negative electrode of the light-emitting diode is connected to the power supply output terminal of the main control module through the current-limiting resistor, the forty-seventh resistor R47.

[0121] It can be understood that after the user's sitting posture is detected, the light module can issue corresponding light reminders according to different detection results of the user's sitting posture detection. For example, the light module is set with two modes: a red light mode and a green light mode. If the sitting posture data of the user is correct, a green light reminder is output. If the sitting posture data of the user is incorrect, a red light reminder is output.

[0122] The light generation module may include a red light generation sub-module and a green light generation sub-module. The main control module can cause the switch J17 and the switch J20 to conduct and cut off respectively by controlling the pin levels of the GREEN port and the RED_CTOL port, thereby controlling the lighting and extinguishing of the lamp. When the GREEN pin of the GREEN port outputs a high level, it is limited by the forty-sixth resistor R46 and flows to the base of the switch J20. Since the conduction voltage of the switch J20 is approximately 0.7V, the switch J20 conducts. After the power supply V33 of the main control module is limited by the forty-seventh resistor R47, it drives the light-emitting diode D21 to emit light. The working principle of the other group of red light-emitting circuits is the same as above.

[0123] As Figure 13 shown, this embodiment provides a circuit block diagram of an intelligent processing device for an intelligent seat. The intelligent processing device includes a Bluetooth SOC module, which integrates a regulated voltage circuit, a charge and discharge management circuit, and a built-in ADC circuit. The Bluetooth SOC module is connected to an external ADC circuit, a storage circuit, an anti-tampering detection circuit, and an acoustic and optical feedback module. The built-in ADC circuit is connected to a strain gauge through an amplification and filtering circuit; the strain gauge can also be connected to the Bluetooth SOC module through an external ADC circuit. The intelligent processing device is powered by a lithium battery. After the Bluetooth SOC processes the pressure value collected by the strain gauge through calculation, it obtains a sitting posture result, which is transmitted to a mobile phone or other clients in a Bluetooth wireless manner on one hand and stored in the internal memory on the other hand for output as a log or a sitting posture report. If an improper sitting posture is detected, it can also perform an acoustic, optical, or vibration reminder function to remind the user to correct the sitting posture.

[0124] In some embodiments, an intelligent seat data interaction system is provided. The device includes a user terminal and the above intelligent seat, and the intelligent seat is used to transmit pressure values and / or sitting posture data to the user terminal.

[0125] The intelligent seat data interaction system in this embodiment has all the advantages of the above intelligent seat. At the same time, it can realize remote viewing of the user's posture information.

[0126] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the various embodiments provided in the present application can include non-volatile and / or volatile memories. Non-volatile memories can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memories can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and Rambus dynamic RAM (RDRAM), etc.

[0127] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0128] The above embodiments are only used to illustrate the technical solutions of the present application, rather than 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 of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An intelligent seat, characterized in that, Including: A seat body and an intelligent processing device disposed on the seat body, the intelligent processing device including: A pressure acquisition module for acquiring the pressure value applied by a user on the seat body; A main control module for obtaining the pressure value and determining the sitting posture data of the user according to the pressure value; An anti-disassembly detection module connected between the pressure acquisition module and the main control module, the anti-disassembly detection module being configured to output a power-off signal to the main control module when it detects that the acquisition module is disconnected from the main control module; the main control module responds to the power-off signal and performs a preset data protection operation on the pressure value and the sitting posture data.

2. The intelligent seat according to claim 1, wherein The seat body includes a seat cushion, and the pressure acquisition module includes a seat cushion sensor; A receiving portion is provided on the seat cushion, and the main control module and the anti-disassembly detection module are disposed in the receiving portion; A seat pad is provided above the receiving portion, the seat cushion sensor is disposed in the seat pad, and the seat cushion sensor is connected to the anti-disassembly detection module through a cable.

3. The intelligent seat according to claim 2, characterized in that, The seat body further includes a backrest, and the pressure acquisition module further includes a backrest pressure sensor provided on the backrest; and / or, The seat body further includes chair legs, and the pressure acquisition module further includes chair leg pressure sensors provided on the chair legs.

4. The intelligent seat according to claim 1, characterized in that, The anti-disassembly detection module includes a first operational amplifier, a first resistor, a second resistor, and a third resistor; wherein, the output end of the first operational amplifier is connected to the main control module, the non-inverting input end of the first operational amplifier is grounded through the third resistor, and both ends of the third resistor are respectively connected to the pressure acquisition module; the inverting input end of the first operational amplifier is connected to the power supply terminal of the main control module; the first end of the first resistor and the first end of the second resistor are respectively connected to the inverting input end of the first operational amplifier, the second end of the first resistor is respectively connected to the voltage output terminal of the main control module and the pressure acquisition module, and the second end of the second resistor is grounded.

5. The intelligent seat according to claim 1, wherein, The intelligent processing device further includes a storage module, the storage module is communicatively connected to the main control module through an SDIO interface or an SPI interface, and the storage module is configured to receive and store the pressure value and the sitting posture data output by the main control module.

6. The intelligent seat according to claim 5, characterized in that, Performing the preset data protection operation on the pressure value and the sitting posture data includes at least one of the following operations: Performing an encryption process on the pressure value and the sitting posture data stored in the storage module; Clearing the pressure value and the sitting posture data stored in the storage module; Stopping the main control module from writing the pressure value and the sitting posture data to the storage module; Forbidding reading the pressure value and the sitting posture data stored in the storage module.

7. The intelligent seat according to claim 1, characterized in that, The intelligent processing device further includes a power supply battery, and the main control module further includes a voltage stabilizing sub-module and / or a charge and discharge management sub-module; The voltage stabilizing sub-module is configured to convert the output voltage of the power supply battery into a regulated power supply voltage and output it to each module of the intelligent processing device; The charge and discharge management sub-module is configured to manage the charge and discharge process of the power supply battery.

8. The intelligent seat according to claim 1, characterized in that, The intelligent processing device further includes a power-on / off control module. The power-on / off control module includes a power-on / off button. The power-on / off control module is configured to control the power-on or power-off of the intelligent processing device according to the user's operation on the power-on / off button. The power-on / off control module is connected to the charging interface and the USB communication interface of the main control module. The power-on / off control module is configured to control the power-on of the intelligent processing device when it detects that the charging interface is connected to a charging terminal. Moreover, the power-on / off control module is also configured to control the power-on of the intelligent processing device when it detects that a USB device is connected to the USB communication interface.

9. The intelligent seat according to claim 8, wherein The power-on / off control module includes a power-on / off button, a first switch, a second switch, a first diode, a fourth diode, a seventh diode, a fifth resistor, and a seventh resistor. Among them, the first end of the power-on / off button is connected to the second pole of the second switch. The second end of the power-on / off button is connected to the power supply output terminal of the main control module through a third diode. The first end of the power-on / off button is connected to the positive pole of the seventh diode. The second end of the power-on / off button is connected to the negative pole of the seventh diode. The first pole of the second switch is connected to the USB interface of the main control module through the first diode. The first pole of the second switch is connected to the charging interface of the main control module through the fourth diode. The first pole of the second switch is grounded through the seventh resistor. The second pole of the second switch is grounded. The third pole of the second switch is connected to the first pole of the first switch. The first pole of the first switch is connected to the power supply terminal of the intelligent processing device through the fifth resistor. The second and third poles of the first switch are connected to the power supply terminal of the intelligent processing device.

10. The intelligent seat according to claim 1, characterized in that, The main control module further includes a low-power consumption control sub-module. The low-power consumption control sub-module is configured to control the intelligent processing device to enter a low-power consumption state when it detects that the pressure value meets a preset condition, where the preset condition is used to indicate that there is no user on the intelligent seat.

11. The intelligent seat according to claim 1, wherein The main control module includes an analog-to-digital conversion sub-module. The intelligent processing device further includes an impedance transformation and amplification filtering circuit module. The impedance transformation and amplification filtering circuit module is connected between the analog-to-digital conversion sub-module and the pressure acquisition module. The impedance transformation and amplification filtering circuit module includes: a second operational amplifier, a third operational amplifier, and a fourth operational amplifier. The output terminal of the second operational amplifier is connected to the analog-to-digital conversion sub-module. The positive-phase input terminal of the second operational amplifier is connected to the output terminal of the third operational amplifier. The negative-phase input terminal of the second operational amplifier is connected to the output terminal of the fourth operational amplifier. The third operational amplifier and the fourth operational amplifier form a buffer. The positive-phase input terminals of the third operational amplifier and the fourth operational amplifier are respectively connected to the pressure acquisition module.

12. The intelligent seat according to claim 1, wherein, The intelligent processing device further includes an analog-to-digital conversion module, which is connected between the pressure acquisition module and the main control module. The analog-to-digital conversion module is configured to receive the working mode instruction output by the main control module, and feedback the pressure value to the main control module in a corresponding working mode according to the working mode instruction.

13. The intelligent seat according to claim 1, characterized in that, The intelligent processing device further includes a sound generation module, which is connected to the main control module and is configured to receive the first reminder instruction output by the main control module, and output a corresponding sound signal and / or vibration signal according to the first reminder instruction; and / or The intelligent processing device further includes a light generation module, which is connected to the main control module and is configured to receive the second reminder instruction output by the main control module, and output a corresponding light signal according to the second reminder instruction.

14. An intelligent seat data interaction system, characterized in that, The device includes a user terminal and the intelligent seat according to any one of claims 1 to 13. The intelligent seat is configured to transmit the pressure value and / or sitting posture data to the user terminal.

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