Non-sensitive intelligent safety belt monitoring system

Abstract

The invention provides a non-sensitive intelligent safety belt monitoring system. Comprising a monitoring module, the monitoring module comprises a main control chip, a six-axis sensor and a microswitch, and the six-axis sensor and the microswitch are respectively connected with the main control chip; wherein the six-axis sensor is used for monitoring the posture change and the position change of the safety belt hook in real time, the microswitch is used for detecting the hanging state and the unhanging state of the safety belt hook, and the main control chip is used for monitoring the state of the safety belt hook according to the posture change, the position change, the hanging state and the unhanging state of the safety belt hook. According to the scheme, the problem that in the prior art, manual intervention is needed when an operator uses the intelligent safety belt is solved.

Description

Technical Field

[0001] The present application relates to the technical field of Internet of Things, and in particular to a non-contact intelligent seat belt monitoring system. Background Art

[0002] With the continuous development of industrial production and construction, aerial work has become an indispensable part of many industries. However, in aerial work, due to the complex and changeable environment, safety issues have always been the focus of the industry. As one of the important tools to ensure the life safety of aerial workers, the importance of safety belts is self-evident. In recent years, with the advancement of Internet of Things technology, smart safety belts have gradually come into people's view, aiming to further improve the safety of work through scientific and technological means. However, existing smart safety belts still face many challenges in practical applications, especially when operators need manual intervention when using smart safety belts. Operators are required to manually turn on the equipment, perform equipment calibration, shut down the equipment, perform maintenance and other operations, which not only increases the complexity of the operation, but also may cause monitoring failure due to forgetting to perform these operations.

[0003] The above information disclosed in the background technology section is only used to enhance the understanding of the background technology of the technology described in this article. Therefore, the background technology may contain certain information that does not form the prior art known in this country for those skilled in the art. Summary of the invention

[0004] The main purpose of the present application is to provide a non-sensitive intelligent seat belt monitoring system to solve the problem in the prior art that operators need manual intervention when using intelligent seat belts.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a non-contact intelligent seat belt monitoring system is provided, including: a monitoring module, including a main control chip, a six-axis sensor and a micro switch, the six-axis sensor and the micro switch are respectively connected to the main control chip; wherein, the six-axis sensor is used to monitor the posture changes and position changes of the seat belt hook in real time, the micro switch is used to detect the fastening state and the unclipping state of the seat belt hook, and the main control chip is used to monitor the state of the seat belt hook according to the posture change, the position change, the fastening state and the unclipping state of the seat belt hook.

[0006] Optionally, the non-contact intelligent seat belt monitoring system also includes a Bluetooth communication module, which is connected to the main control chip. The monitoring module transmits the status data of the seat belt hook to the seat belt host and the seat belt auxiliary machine through the Bluetooth communication module, and the status data includes the posture change of the seat belt hook, the position change of the seat belt hook, the fastening state of the seat belt hook and the unclipping state of the seat belt hook.

[0007] Optionally, after the non-sensitive intelligent seat belt monitoring system enters the initialization stage, a parameter configuration check is performed. When the parameter configuration is completed, the non-sensitive intelligent seat belt monitoring system enters a low power consumption mode.

[0008] Optionally, after the non-contact intelligent seat belt monitoring system enters the low power consumption mode, when the six-axis sensor is detected to be interrupted, the state of the monitoring module enters the Bluetooth broadcast mode, the monitoring module establishes a Bluetooth connection with the seat belt host or the seat belt auxiliary machine, and the monitoring module transmits the monitored status data to the seat belt host or the seat belt auxiliary machine. When the Bluetooth connection between the monitoring module and the seat belt host or the seat belt auxiliary machine is disconnected for some reason, the monitoring module enters the Bluetooth broadcast mode. When the seat belt host or the seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the monitoring module within a first preset time, the monitoring module reconnects. When the seat belt host or the seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the monitoring module within a second preset time, the monitoring module enters the low power consumption mode.

[0009] Optionally, the six-axis sensor includes an accelerometer and a gyroscope, which are used to detect the acceleration and angular velocity of the seat belt hook in three directions.

[0010] Optionally, the micro switch adopts a low-power design, and is detected and triggered only when the seat belt hook is fastened or unclipped.

[0011] Optionally, after the non-contact intelligent seat belt monitoring system enters the initialization stage, the main control chip detects whether the seat belt is in the worn state. When the seat belt is in the worn state, it determines whether the operator is in the climbing state. When the operator is in the climbing state, the operation mode is entered.

[0012] Optionally, when the safety belt is not in the wearing state, the main control chip enters a sleep mode, and after a preset time period, determines whether there is an external interruption, and wakes up the monitoring module if there is an external interruption.

[0013] Optionally, the monitoring module further includes a battery module and a battery monitoring switch module, the battery module is used to power the main control chip and the six-axis sensor, and the battery monitoring switch module is connected in series between the main control chip and the battery module.

[0014] Optionally, the battery monitoring switch module includes a first resistor module, a second resistor module and a MOS tube, the first end of the first resistor module is connected to the output end of the battery module, the second end of the first resistor module is connected to the first end of the second resistor module, the second end of the second resistor module is connected to the drain of the MOS tube, the gate of the MOS tube is connected to an enable signal, and the source of the MOS tube is grounded.

[0015] By applying the technical solution of the present application, the non-sensitive intelligent seat belt monitoring system includes a monitoring module, which includes a main control chip, a six-axis sensor and a micro switch, and the six-axis sensor and the micro switch are respectively connected to the main control chip; wherein, the six-axis sensor is used to monitor the posture change and position change of the seat belt hook in real time, the micro switch is used to detect the hanging state and the unhanging state of the seat belt hook, and the main control chip is used to monitor the state of the seat belt hook according to the posture change, position change, hanging state and unhanging state of the seat belt hook. In this solution, the posture and position change of the intelligent seat belt hook are monitored in real time by the six-axis sensor, and the hanging and unhanging state of the intelligent seat belt hook is monitored by the micro switch, and the monitored data is transmitted to the main control chip, the main control chip determines the hook state according to the monitoring data, and transmits the hook state information to the host or auxiliary machine of the intelligent seat belt through Bluetooth, thereby solving the problem of manual intervention required by operators when using intelligent seat belts in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A schematic diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0018] Figure 2 A circuit design block diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0019] Figure 3(a) to Figure 3(e) The original diagram of the main control circuit of the Bluetooth SOC chip GR5331 of the non-sensitive intelligent seat belt monitoring system according to the embodiment of the present application is shown;

[0020] Figure 4A low power consumption mode design flow chart of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0021] Figure 5 A circuit schematic diagram of a six-axis sensor of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0022] Figure 6 A micro switch circuit diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0023] Figure 7 A micro switch interface circuit diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0024] Figure 8 A non-sensitive working flow chart of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0025] Fig. 9 A battery power supply circuit diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown;

[0026] Fig.10 A battery monitoring switch circuit diagram of a non-sensitive intelligent seat belt monitoring system according to an embodiment of the present application is shown.

[0027] The above drawings include the following reference numerals:

[0028] 01. Non-sensitive intelligent seat belt monitoring system; 10. Monitoring module; 20. Bluetooth communication module; 11. Main control chip; 12. Six-axis sensor; 13. Micro switch; 14. Battery module; 15. Battery monitoring switch module; 150. First resistor module; 151. Second resistor module; 152. MOS tube. DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intermediate elements. Moreover, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.

[0032] As introduced in the background technology, existing smart seat belts still face many challenges in practical applications. In particular, manual intervention is required when operators use smart seat belts. Operators are required to manually turn on the equipment, calibrate the equipment, shut down the equipment, perform maintenance and other operations. This not only increases the complexity of the operation, but may also cause monitoring failure due to forgetting to perform these operations. In order to solve the problem in the prior art that operators need manual intervention when using smart seat belts, the present application proposes a non-sensitive smart seat belt monitoring system.

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] The schematic diagram of the non-sensitive intelligent seat belt monitoring system provided in the embodiment of the present application is as follows Figure 1 As shown, the non-sensitive intelligent seat belt monitoring system 01 includes a monitoring module 10, and the monitoring module 10 includes a main control chip 11, a six-axis sensor 12 and a micro switch 13, and the six-axis sensor 12 and the micro switch 13 are respectively connected to the main control chip 11; wherein the six-axis sensor 12 is used for real-time monitoring of the posture change and position change of the seat belt hook, the micro switch 13 is used for detecting the fastening state and the unclipping state of the seat belt hook, and the main control chip 11 is used for monitoring the state of the seat belt hook according to the posture change, the position change, the fastening state and the unclipping state of the seat belt hook.

[0035] Specifically, the main control chip is responsible for processing the data from the six-axis sensor and the micro switch, and judging the status of the seat belt hook based on these data. The main control chip in this embodiment can use the GR5331 chip. The GR5331 chip, as the core control unit of this embodiment, has the characteristics of high performance and low power consumption. It mainly performs task scheduling, hardware device initialization, switching management between tasks, and execution of instructions to ensure the stable operation of the monitoring system and accurate data processing. The six-axis sensor integrates an accelerometer and a gyroscope, which can detect acceleration and angular velocity in three directions, and transmit the data to the main control chip for processing, so as to monitor the posture change and position change of the seat belt hook in real time. Through the data collected by the six-axis sensor, the main control chip can more accurately judge whether the hook is in a normal working state or an abnormality occurs, such as tilting, flipping, etc. The micro switch is a small mechanical switch used to monitor the fastening and unclipping status of the seat belt hook. When the hook is correctly fastened, the micro switch will close and send a signal to the main control chip, indicating that the hook is in place; conversely, when the hook is unclipped, the switch is disconnected. After receiving the signal, the main control chip can take immediate measures, such as sending a warning signal, to notify the operator or manager. The micro switch adopts a low-power design and is only detected and triggered when necessary, reducing unnecessary operations.

[0036] like Figure 1 As shown, the above-mentioned non-sensitive intelligent seat belt monitoring system 01 also includes a Bluetooth communication module 20, and the above-mentioned Bluetooth communication module 20 is connected to the above-mentioned main control chip 11. The above-mentioned monitoring module 10 transmits the status data of the above-mentioned seat belt hook to the seat belt host and the seat belt auxiliary machine through the above-mentioned Bluetooth communication module 20, and the above-mentioned status data includes the above-mentioned posture change of the above-mentioned seat belt hook, the above-mentioned position change of the above-mentioned seat belt hook, the above-mentioned hanging state of the above-mentioned seat belt hook and the above-mentioned unhanging state of the above-mentioned seat belt hook.

[0037] Specifically, the connection between the Bluetooth communication module and the main control chip is carried out through a digital interface (such as SPI or UART) for data exchange. This connection enables the main control chip to control the startup of the Bluetooth module, data transmission, and configuration of communication parameters. The hook status data collected by the monitoring module, including but not limited to posture changes (for example, tilt angle and rotation speed), position changes (for example, the moving direction and speed of the hook), hooking status (i.e., whether the hook is correctly connected to the fixed point) and unhooking status (i.e., whether the hook is released from the fixed point), are all sent out through the Bluetooth communication module. Transmission target: The receiver of the status data includes the seat belt host and the seat belt auxiliary machine. Usually, the seat belt host is a device with more powerful processing power and display function, such as the operator's smartphone or a dedicated monitoring terminal. The seat belt auxiliary machine may be another monitoring system used to provide backup or auxiliary functions when the host is unable to work or unavailable. The integration of the Bluetooth communication module makes the data transmission process almost transparent to the user. There is no need for the user to manually operate the Bluetooth connection, nor is there a need to frequently set or check the communication status. The system can automatically and continuously send the status data to the receiving device to ensure the real-time and continuity of the information. The Bluetooth communication module is in a low power or dormant state when not transmitting data to save power. Once a change in the hook state is detected, the system will automatically wake up the Bluetooth module for data transmission. Through the integration and application of the above Bluetooth communication module, the intelligent safety belt monitoring system in the present invention can transmit the hook state data in real time and accurately without human intervention, greatly improving the safety level of high-altitude workers.

[0038] The circuit design block diagram of this embodiment is as follows Figure 2 As shown, the Bluetooth communication module can be integrated on the main control chip, which is the GR5331 chip. The original diagram of the main control circuit of the Bluetooth SOC chip GR5331 is shown in Figure 3(a) to Figure 3(e) As shown. Figure 3(a) to Figure 3(e) The same pin number in FIG. 3( a ) corresponds to the same pin. For example, pin TM No. 46 in FIG. 3( a ) is actually electrically connected to pin No. 46 in FIG. 3( b ).

[0039] As the core of the non-sensitive intelligent seat belt monitoring system, the main control chip is responsible for data processing, task scheduling, communication control and other core functions, such as Figure 2As shown, the main control chip is directly connected to the six-axis sensor, micro switch, battery module and battery monitoring switch module, and collects data and controls the battery status by transmitting IO signals. The six-axis sensor in this embodiment can use the LSM6DSVE six-axis sensor, which is connected to the main control chip through the I2C bus. The main control chip can be used as a master device to control the LSM6DSVE through the I2C protocol to read its acceleration and angular velocity data. This communication method allows GR5331 to access and read data from the LSM6DSVE with minimal hardware overhead and the simplest code. At the same time, the multi-device capability of I2C also makes it possible to connect multiple sensors or other devices on the same bus. In low-power mode, GR5331 monitors the interrupt signal of the six-axis sensor. Once a change in the hook state is detected, the system is immediately awakened to perform status monitoring and data transmission. The micro switch is connected to the main control chip and sends the hook status information to it. When the hook is tied, the micro switch acts and sends a signal to the main control chip, triggering the system to perform status monitoring. The battery monitoring switch module is connected to the main control chip, transmits IO signals, and controls the power supply status. The measured voltage refers to the battery voltage, which is detected and transmitted to the main control chip through the battery monitoring switch module. The battery module of this embodiment can use a 3V button battery to power the six-axis sensor, the main control chip, and the battery monitoring switch module.

[0040] After the non-sensitive intelligent seat belt monitoring system enters the initialization stage, a parameter configuration check is performed. When the parameter configuration is completed, the non-sensitive intelligent seat belt monitoring system enters a low power consumption mode.

[0041] Specifically, Figure 4 The low-power mode design flow of the non-sensitive intelligent seat belt monitoring system is demonstrated. Figure 4 As shown, after the device is powered on, the embedded program runs the startup work and enters the initialization phase. The parameter configuration is checked first. If it is detected that the parameters have not been configured, the device will enter the production mode until the parameter configuration is completed; if the parameters have been configured, the device will enter the low power consumption mode.

[0042] Parameter configuration is the basis for ensuring that the system can correctly identify and handle various monitoring situations. The main purpose of parameter configuration is to verify whether the various settings within the system have been correctly set. These settings include but are not limited to Bluetooth communication parameters, sensor calibration values, monitoring thresholds, etc. If the system detects that the parameter configuration has not been completed during the initialization phase, it will enter production mode, which is a special working state for setting and adjusting parameters. In production mode, users or system maintenance personnel can perform necessary parameter configurations on the monitoring system to ensure the normal operation of its functions. Once the parameter configuration is completed, the monitoring system will automatically switch to low power mode. Low power mode is designed to minimize power consumption, extend battery life, and thus reduce the maintenance burden of high-altitude workers. In low power mode, the main control chip and six-axis sensor will enter a dormant state and will only be awakened for monitoring or communication when needed. For example, when the operator starts to move or the state of the seat belt hook changes, the dormant six-axis sensor will be awakened, the monitoring data will be collected and processed, and then the data will be transmitted to the host or other monitoring equipment of the smart seat belt through Bluetooth technology. This design of automatically entering low-power mode not only ensures the stability and reliability of the monitoring system, but also effectively reduces power consumption, allowing the monitoring system to continue to operate for a long time without increasing the burden on operators, thereby improving efficiency in high-altitude operation scenarios.

[0043] After the above-mentioned non-contact intelligent seat belt monitoring system enters the above-mentioned low-power consumption mode, when the above-mentioned six-axis sensor is detected to be interrupted, the state of the above-mentioned monitoring module enters the Bluetooth broadcast mode, the above-mentioned monitoring module establishes a Bluetooth connection with the seat belt host or the seat belt auxiliary machine, and the above-mentioned monitoring module transmits the monitored status data to the above-mentioned seat belt host or the above-mentioned seat belt auxiliary machine. When the Bluetooth connection between the above-mentioned monitoring module and the above-mentioned seat belt host or the above-mentioned seat belt auxiliary machine is disconnected for some reason, the above-mentioned monitoring module enters the above-mentioned Bluetooth broadcast mode. When the above-mentioned seat belt host or the above-mentioned seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the above-mentioned monitoring module within the first preset time, the above-mentioned monitoring module reconnects. When the above-mentioned seat belt host or the above-mentioned seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the above-mentioned monitoring module within the second preset time, the above-mentioned monitoring module enters the low-power consumption mode.

[0044] Specifically, Figure 4As shown in the figure, after the intelligent seat belt monitoring system is in low power mode, when the six-axis sensor detects a state change (such as the movement of the seat belt hook), an interrupt signal will be triggered. This interrupt signal is the key to wake up the monitoring system from low power mode and start working. After receiving the interrupt signal from the six-axis sensor, the monitoring module enters the Bluetooth broadcast mode. In this mode, the monitoring module will actively send a broadcast signal to try to establish a Bluetooth connection with the host or auxiliary device of the intelligent seat belt to ensure that the monitoring module can quickly restore communication capabilities when needed even in a low power state. Once the monitoring module successfully establishes a Bluetooth connection with the host or auxiliary device of the seat belt, it will report the monitored status data (such as the hook's hanging status, position change, etc.) to the host or auxiliary device. In this way, managers or users can understand the status of the seat belt in real time through the host or auxiliary device without manual query or operation. If the Bluetooth connection is disconnected for some reason (such as signal interference, too far away, etc.), the monitoring module will enter the Bluetooth broadcast mode again and try to re-establish the connection. If the connection is not established after the timeout, it will automatically return to the low power mode. Specifically, if the monitoring module fails to successfully re-establish a Bluetooth connection with the seat belt host or auxiliary device within the first preset time, it will try to connect again; if the monitoring module still fails to successfully establish a connection within the second preset time, it will automatically return to low power consumption mode to save power until the next six-axis sensor interrupt signal arrives and wakes up again.

[0045] This intelligent connection and data transmission mechanism in low-power mode ensures that the monitoring system can not only stay in standby mode for a long time to save energy, but also respond quickly and complete data transmission at critical moments. The monitoring module can automatically switch working modes according to different states and trigger conditions to ensure stable, real-time and low-power operation of the equipment.

[0046] The six-axis sensor includes an accelerometer and a gyroscope, which are used to detect the acceleration and angular velocity of the seat belt hook in three directions.

[0047] Specifically, the six-axis sensor is a sensor module that integrates a three-axis accelerometer and a three-axis gyroscope, which can simultaneously measure and report the motion state of an object in three-dimensional space. The circuit schematic diagram of the six-axis sensor is shown in Figure 5As shown. In the non-sensitive intelligent seat belt monitoring system, the role of the six-axis sensor is to monitor the real-time dynamics of the hook to ensure the safety of the operator. Among them, the accelerometer measures the acceleration of the object on three orthogonal axes (X, Y, Z axes), including linear acceleration and gravity acceleration. In the non-sensitive intelligent seat belt monitoring system, the accelerometer can be used to detect whether the hook moves suddenly or impacts, so as to determine whether an abnormal situation occurs, such as accidental detachment or collision. The gyroscope measures the angular velocity of the object rotating around three axes, and can detect the rotation of the hook relative to its installation reference, helping the system understand the posture changes of the hook, such as whether the hook is correctly attached or whether it shakes. By combining the data of the accelerometer and the gyroscope, the system can more accurately determine the attachment status and movement of the hook. For example, when the hook is correctly attached, the accelerometer and gyroscope will show stable readings, and when the hook shakes or moves suddenly, the corresponding alarm mechanism will be triggered to notify the operator or the background management system of possible safety problems. This monitoring method can respond to various potential dangerous situations immediately, so that timely measures can be taken to protect the safety of the operator.

[0048] The micro switch is designed with low power consumption and is only detected and triggered when the seat belt hook is fastened or unfastened.

[0049] Specifically, a micro switch is a small, highly sensitive electronic switch device, usually composed of one or more metal contacts, a spring arm and a trigger mechanism. The working principle of the micro switch is that when an external mechanical force acts on the trigger mechanism, the spring arm deforms, thereby closing or disconnecting the metal contact point to achieve the on-off of the circuit. Figure 6 As shown in the figure, the model of the micro switch is OK-F501-06325. When the switch contact S1 of the micro switch is triggered (for example, the hook is tied or untied), S1 will change its state from disconnected to connected, or from connected to disconnected. This state change will be detected by the monitoring circuit and further converted into a level signal or current change, thereby notifying the main control chip GR5331 of the state of the hook. The micro switch interface circuit diagram is shown in the figure below. Figure 7 As shown, one end of the micro switch is connected to the positive pole of the power supply, and the other end is connected to an input pin of the main control chip through a resistor. The input pin is configured as a pull-up input mode, which means that when the micro switch is not triggered, the pin is at a high level; when the micro switch is triggered, the contact is closed, the pin level becomes low, and the main control chip can detect this change. The circuit contains a capacitor, which forms a simple RC filter together with the resistor to reduce signal misreading caused by mechanical jitter of the switch.

[0050] The design of the micro switch interface circuit needs to take into account the reliability of the signal and the overall power consumption of the system to ensure that the system can operate stably in a complex working environment, while minimizing energy consumption when not in use to extend the working time of the equipment. The micro switch has the following design features:

[0051] High precision and reliability: The trigger point of the micro switch is very precise and can respond quickly to small mechanical changes. At the same time, its contact points usually use highly conductive metal materials to ensure long-term stability and reliability.

[0052] Miniaturization: Micro switches are small and easy to integrate into various devices and systems, especially in space-constrained application scenarios.

[0053] Low power consumption: Due to its simple operation, the circuit is switched only by mechanical contact, so the power consumption during use is extremely low.

[0054] Long life: The contact points of the micro switch are designed to close and open quickly, reducing wear and tear, resulting in a long service life.

[0055] Sensitive Operation: Micro switches are able to respond quickly even with slight triggering forces, which makes them very effective in applications that require high sensitivity.

[0056] The micro switch itself does not require a battery to work. It is a mechanical electronic component that closes or opens its contacts when subjected to an external force, thereby changing the state of the circuit. This switch is usually passive, that is, it does not require an external power source (such as a battery) to trigger or maintain its state change. However, in the non-sensing intelligent seat belt monitoring system, the micro switch detects the hook's hooking and unhooking state. When the micro switch detects a state change, it triggers a signal that needs to be received and processed by the active components in the circuit (such as a microcontroller). Therefore, although the micro switch itself does not require a battery, the circuit or system connected to it may require a battery to convert the micro switch's signal into data for further processing or transmission.

[0057] In low-power designs, micro switches are usually used with low-power electronic devices. These devices will enter sleep or low-power mode when no action is detected. They will only wake up briefly for data processing and transmission when the micro switch is triggered, which can greatly save battery usage and extend the working time of the device. Therefore, using a micro switch with low power design and activating only when the hook status changes can significantly reduce power consumption, extend the operating time of the equipment, and reduce the need for operators to frequently charge or replace batteries, thereby improving the convenience of use and the practicality of the equipment. The monitoring system of the smart seat belt provides accurate information at critical moments to ensure the safety of the operators. Through the precise triggering of the micro switch when the hook is tied or untied, the system can accurately capture these actions, and then determine whether the hook is in the correct state of use and whether there are potential safety risks. This triggering mechanism of the micro switch ensures the accuracy and timeliness of monitoring, avoids data interference caused by invalid monitoring, and improves the reliability and effectiveness of the entire monitoring system.

[0058] After the non-sensitive intelligent safety belt monitoring system enters the initialization stage, the main control chip detects whether the safety belt is in the wearing state. If the safety belt is in the wearing state, it determines whether the operator is in the climbing state. If the operator is in the climbing state, it enters the operation mode. If the safety belt is not in the wearing state, the main control chip enters the sleep mode. After a preset period of time, it determines whether there is an external interruption. If there is an external interruption, it wakes up the monitoring module.

[0059] Specifically, the non-sensitive workflow diagram is as follows Figure 8As shown in the figure, when the monitoring circuit of the non-sensing intelligent seat belt monitoring system is powered on for the first time, it enters the initialization stage. The main control chip detects whether the seat belt is worn. If the seat belt is worn, it determines whether the operator is in the climbing state. If the operator is not in the climbing state, it returns to the initialization stage; if the operator is in the climbing state, it enters the operation mode and performs data services until the operation is completed and the machine is shut down. If the seat belt is not worn, the main control chip enters the sleep mode. After a preset period of time, it determines whether there is an external interruption. If there is an external interruption, the monitoring module is awakened. If there is no external interruption, it returns to the sleep mode. In low-power mode, the main control chip and the sensor will enter the sleep state to reduce power consumption. The system will check the sensor status periodically or under specific conditions, such as the interrupt signal of the six-axis sensor, which usually occurs when the hook state changes. This state change may include the movement, hooking or unhooking of the hook. If it is detected that the hook is not in a stationary state, the main control chip will wake up from the low-power mode and enter the normal monitoring state. This process is transparent to the user and there is no need to manually turn on or wake up the device. After waking up, the device determines whether to establish a Bluetooth connection with the main or auxiliary device of the smart seat belt. If a Bluetooth connection is established, it enters the operation mode and transmits data to the system via Bluetooth. If the Bluetooth connection cannot be established within the specified time, it re-enters the sleep mode. After entering the operation mode, data services are provided, and the monitoring module transmits the status data of the hook (including the hooking / unhooking status, posture changes, location information, etc.) to the monitoring host until the operation is completed and the device is shut down. This process achieves the purpose of remote monitoring without the need for manual operation by the user, ensuring the continuity and real-time nature of data transmission.

[0060] After completing the data transfer or monitoring task, if the system detects no further activity or state change, it automatically returns to sleep mode, thus achieving low power consumption.

[0061] like Figure 1 As shown, the monitoring module 10 further includes a battery module 14 and a battery monitoring switch module 15. The battery module is used to power the main control chip and the six-axis sensor. The battery monitoring switch module is connected in series between the main control chip and the battery module.

[0062] Specifically, the battery module is the power supply unit in the intelligent hook monitoring system, which is responsible for providing power to the system to ensure that the intelligent seat belt monitoring module needs to work stably in various environments, including high-altitude operations, extreme weather, etc. The battery power supply circuit diagram of this embodiment is as follows: Fig. 9As shown, the output of BT_3V3 provides a stable 3.3V voltage to other components in the circuit. Capacitors C17 and C18 are connected to the input and output of BT_3V3 respectively to help remove noise in the power supply and provide a cleaner voltage for filtering and stabilization in the battery-powered circuit. The battery-powered circuit converts the battery voltage into a stable 3.3V voltage through the BT_3V3 voltage regulator module, and filters it through capacitors C17 and C18. At the same time, multiple test points (TP726~TP729) are set to monitor the circuit status. The combination of these components and test points ensures that the smart seat belt can obtain a stable and reliable power supply in various environments, thereby supporting the realization of its intelligent monitoring function.

[0063] like Figure 1 As shown, the battery monitoring switch module 15 includes a first resistor module 150, a second resistor module 151 and a MOS tube 152, the first end of the first resistor module is connected to the output end of the battery module, the second end of the first resistor module is connected to the first end of the second resistor module, the second end of the second resistor module is connected to the drain of the MOS tube, the gate of the MOS tube is connected to an enable signal, and the source of the MOS tube is grounded.

[0064] Specifically, the battery monitoring switch circuit diagram of this embodiment is as follows: Fig.10As shown, the first end of the first resistor module is connected to the output end of the battery module, that is, it is placed between the positive electrode of the battery and the other parts of the circuit, the second resistor module is connected in series with the first resistor module, the second end of the first resistor module is connected to the first end of the second resistor module, and the second end of the second resistor module is connected to the drain of the MOS tube. The purpose of the two resistors in series is to form a voltage divider circuit to adjust the voltage of the battery to a level suitable for the gate drive voltage of the MOS tube to prevent excessive voltage from damaging the MOS tube. The MOS tube is a commonly used switching element, which can open or close the current path between the drain and the source by controlling the voltage on the gate. In the battery monitoring switch circuit, the gate of the MOS tube receives an enable signal, which is used to control the switch state of the MOS tube. When the enable signal is at a high level, the MOS tube is turned on, and the battery's electric energy can flow to the circuit through the MOS tube; when the enable signal is at a low level, the MOS tube is turned off, and the battery is disconnected from the circuit, thereby achieving a low power consumption state of the circuit. Among them, the enable signal is a control signal used to control the switch state of the MOS tube, and then control the power supply of the entire circuit. When the system needs to work or monitor, the main controller will send a high-level enable signal to the gate of the MOS tube to turn it on; when the system does not need to work or is in a dormant state, the main controller will send a low-level enable signal to the gate of the MOS tube to turn it off and cut off the power supply to reduce power consumption. The source of the MOS tube is connected to the ground line (the reference point with a potential of 0 in the system) in the battery monitoring switch circuit. This connection method is usually to provide a stable reference potential so that the MOS tube can be used as a switching element. When the MOS tube is turned off, the circuit between the battery and the ground is disconnected and no current flows; when the MOS tube is turned on, a loop is formed between the battery and the ground, and current can flow through the MOS tube to power the circuit.

[0065] The battery monitoring switch module realizes the power management of the intelligent seat belt system through the control of the MOS tube. Especially in the low power consumption mode, by shutting down the MOS tube, the power consumption of the system can be significantly reduced, the battery life can be extended, and the overall energy efficiency of the system can be improved.

[0066] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

[0067] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A non-sensitive intelligent seat belt monitoring system, characterized in that: include: A monitoring module, comprising a main control chip, a six-axis sensor and a micro switch, wherein the six-axis sensor and the micro switch are respectively connected to the main control chip; Among them, the six-axis sensor is used to monitor the posture changes and position changes of the seat belt hook in real time, the micro switch is used to detect the fastening state and the unclipped state of the seat belt hook, and the main control chip is used to monitor the state of the seat belt hook according to the posture change, the position change, the fastening state and the unclipped state of the seat belt hook.

2. The non-sensitive intelligent seat belt monitoring system according to claim 1 is characterized in that: The non-contact intelligent seat belt monitoring system also includes a Bluetooth communication module, which is connected to the main control chip. The monitoring module transmits the status data of the seat belt hook to the seat belt host and the seat belt auxiliary machine through the Bluetooth communication module. The status data includes the posture change of the seat belt hook, the position change of the seat belt hook, the fastening state of the seat belt hook and the unclipping state of the seat belt hook.

3. The non-sensitive intelligent seat belt monitoring system according to claim 1 is characterized in that: After the non-sensitive intelligent seat belt monitoring system enters the initialization stage, a parameter configuration check is performed. When the parameter configuration is completed, the non-sensitive intelligent seat belt monitoring system enters a low power consumption mode.

4. The non-sensitive intelligent seat belt monitoring system according to claim 3 is characterized in that: After the non-contact intelligent seat belt monitoring system enters the low power consumption mode, when the six-axis sensor is detected to be interrupted, the state of the monitoring module enters the Bluetooth broadcast mode, the monitoring module establishes a Bluetooth connection with the seat belt host or the seat belt auxiliary machine, and the monitoring module transmits the monitored state data to the seat belt host or the seat belt auxiliary machine. When the Bluetooth connection between the monitoring module and the seat belt host or the seat belt auxiliary machine is disconnected for some reason, the monitoring module enters the Bluetooth broadcast mode. When the seat belt host or the seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the monitoring module within a first preset time, the monitoring module reconnects. When the seat belt host or the seat belt auxiliary machine fails to successfully establish a Bluetooth connection with the monitoring module within a second preset time, the monitoring module enters the low power consumption mode.

5. The non-sensitive intelligent seat belt monitoring system according to claim 1 is characterized in that: The six-axis sensor includes an accelerometer and a gyroscope, and is used to detect the acceleration and angular velocity of the seat belt hook in three directions.

6. The non-sensitive intelligent seat belt monitoring system according to claim 1 is characterized in that: The micro switch adopts a low power consumption design and is only detected and triggered when the safety belt hook is hung or unhooked.

7. The non-sensitive intelligent seat belt monitoring system according to claim 1, characterized in that: After the non-contact intelligent seat belt monitoring system enters the initialization stage, the main control chip detects whether the seat belt is in the wearing state. If the seat belt is in the wearing state, it determines whether the operator is in the climbing state. If the operator is in the climbing state, the operation mode is entered.

8. The non-sensitive intelligent seat belt monitoring system according to claim 7 is characterized in that: When the safety belt is not in the wearing state, the main control chip enters a sleep mode, and after a preset time period, determines whether there is an external interruption, and wakes up the monitoring module when there is an external interruption.

9. The non-sensitive intelligent seat belt monitoring system according to claim 1, characterized in that: The monitoring module also includes a battery module and a battery monitoring switch module. The battery module is used to supply power to the main control chip and the six-axis sensor. The battery monitoring switch module is connected in series between the main control chip and the battery module.

10. The non-sensitive intelligent seat belt monitoring system according to claim 9, characterized in that: The battery monitoring switch module includes a first resistor module, a second resistor module and a MOS tube, wherein the first end of the first resistor module is connected to the output end of the battery module, the second end of the first resistor module is connected to the first end of the second resistor module, the second end of the second resistor module is connected to the drain of the MOS tube, the gate of the MOS tube is connected to an enable signal, and the source of the MOS tube is grounded.

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