Long-lasting fire-fighting pressure sensing device and monitoring method

Abstract

The application belongs to the technical field of fire-fighting equipment monitoring, and particularly relates to a long-acting fire-fighting pressure sensing equipment and a monitoring method. The long-acting fire-fighting pressure sensing equipment adopts a low-power consumption handshake-free connection Bluetooth communication module to broadcast data, and a patrol terminal can directly receive encrypted data packets without the need to establish a handshake connection, thereby greatly shortening the data collection time consumption. The Bluetooth communication module can keep sustained sleep during a non-collection period, effectively reducing the overall power consumption of the equipment, and in combination with a low-power consumption chip design, the long-acting endurance of several years can be achieved. The set hardware-level identity identification module is internally provided with an unforgeable unique equipment ID, thereby eliminating the problems of equipment identity forgery and data confusion from the hardware layer. Meanwhile, the equipment can perform encrypted signature processing on the collected data, thereby ensuring that the data is not tampered with during the transmission process, and in combination with the cloud-side equipment identity legality verification, illegal equipment access can be effectively blocked, and the safety of the entire fire-fighting monitoring system is improved.

Description

Technical Field

[0001] This invention belongs to the field of fire equipment monitoring technology, specifically relating to a long-lasting fire pressure sensing device and monitoring method. Background Technology

[0002] Pressure monitoring of fire-fighting equipment is a core aspect of fire safety management. Traditional fire-fighting pressure monitoring mainly relies on manual inspections, judging the equipment status by manually checking pressure gauges and recording data. This method suffers from problems such as low inspection efficiency, high rate of missed inspections, easy errors in data recording, and inability to provide real-time feedback.

[0003] Although some fire pressure monitoring devices with sensing and communication functions have appeared in the prior art, such as the Chinese patent document with publication number CN213192265U, which describes a smart fire digital remote pressure fire extinguisher, including a fire extinguisher, a connecting valve on the fire extinguisher, a mechanical pressure gauge on the connecting valve, and a digital monitor on the connecting valve.

[0004] However, current fire pressure monitoring equipment generally suffers from the following defects: 1. Communication layer: Most use conventional Bluetooth or other communication protocols, requiring a handshake process before connection, which is time-consuming. In short-range, rapid identification scenarios during fire inspections, the handshake process significantly reduces the efficiency of device identification and data collection. Some devices have high power consumption, failing to achieve long-term battery life, and frequent battery replacements increase maintenance costs. 2. Sensing layer: The selected pressure sensors lack accuracy and have large temperature drift coefficients. In the actual working environment of fire equipment (-30℃~50℃), measurement errors are prone to occur, making it impossible to accurately determine abnormal equipment pressure. Some sensors have large package sizes, making them difficult to integrate into small fire equipment (such as fire extinguishers), resulting in poor compatibility. 3. Equipment management layer: The lack of hardware-level unique identification makes it easy for device data to be confused and for unauthorized devices to connect. Furthermore, data transmission is not encrypted to prevent tampering, resulting in the inability to guarantee the authenticity of pressure data and location information uploaded to the management platform. 4. System collaboration level: The collaboration between terminal sensing devices, on-site inspection terminals and cloud management platforms is poor, data upload is delayed, and real-time monitoring of pressure status and rapid alarm of anomalies cannot be achieved. It is still in a passive response fire management mode.

[0005] The aforementioned problems have resulted in existing fire pressure sensing equipment being unable to meet the needs of smart fire protection for efficient identification, accurate monitoring, long-term operation, safety management, and real-time collaboration, thus hindering the refinement and intelligent upgrading of fire management. Summary of the Invention

[0006] This invention aims to provide a long-lasting fire pressure sensing device and monitoring method to achieve efficient and low-power data acquisition and transmission of pressure data from fire equipment, solving the problems of low connection efficiency, poor battery life, untrusted identity, and easy data tampering of existing devices, so as to meet the application needs of smart fire protection for accurate monitoring, safety management, and system collaboration.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: A long-lasting fire-fighting pressure sensing device is provided, comprising a housing with a threaded connector on one side. A circuit board, a pressure sensing module, and a battery are housed within the housing. The circuit board includes a main control module, a Bluetooth communication module, and an identification module. The main control module contains a data encryption program. The Bluetooth communication module is a low-power, handshake-free Bluetooth chip. The identification module is a chip with a built-in, tamper-proof, unique device ID. The pressure sensing module, Bluetooth communication module, and identification module are electrically connected to the main control module.

[0008] The present invention also provides a monitoring method for a long-lasting fire-fighting pressure sensing device, the method comprising: Equipment installation: Install the aforementioned long-term fire pressure sensing equipment on the fire-fighting equipment; Pressure monitoring: The pressure sensing module in the long-term fire-fighting pressure sensing device periodically collects the pressure data of the fire-fighting equipment and transmits it to the main control module. The main control module determines whether the working status of the fire-fighting equipment is normal based on the pressure data. Data encryption: The main control module binds the unique device ID of the fire-fighting equipment with the collected pressure data and the determined device working status. After being encrypted and signed by the data encryption module, an encrypted data packet of "device ID + pressure data + device working status" is obtained and temporarily stored locally. Inspection and data collection: During data updates, the main control module controls the Bluetooth communication module to enter working state and continuously broadcasts the encrypted data packets; inspection personnel carry inspection terminal devices to conduct on-site data collection within the signal coverage area of ​​the Bluetooth communication module. The inspection terminal devices directly receive the encrypted data packets broadcast by the Bluetooth communication module without establishing a handshake connection with the Bluetooth communication module; the Bluetooth communication module immediately enters sleep state after broadcasting during the data update period. Inspection and monitoring: The inspection terminal device decrypts the received encrypted data packets and displays relevant data such as device ID, current pressure value, and device status in real time. If the pressure value is detected to be outside the normal range, an on-site alarm is immediately triggered. Inspection data upload: The inspection terminal device uploads inspection data, including equipment ID, pressure data, inspection time, and inspection personnel, to the smart fire protection management cloud platform in real time via the mobile network; Cloud-based data management: After receiving the inspection data uploaded by the inspection terminal device, the smart fire protection management cloud platform first verifies the legality of the device ID and compares it with the legal device ID in the cloud database. If it is an illegal ID, the access is directly blocked and the device is marked as suspicious. If it is a legal ID, the device is registered to join the network and the pressure data is parsed and stored.

[0009] Preferably, the cloud data management also includes: the smart fire protection management cloud platform monitors the pressure status of all legally connected devices in real time, and displays the distribution and health status of fire protection equipment through color coding and GIS map visualization.

[0010] Preferably, the cloud data management also includes: if abnormal pressure or offline status of fire-fighting equipment is detected, triggering multi-level alarms via platform pop-ups and SMS notifications, and pushing them to management personnel.

[0011] Preferably, the cloud data management also includes: the smart fire protection management cloud platform simultaneously records the entire lifecycle data of each fire protection equipment, including inspection, maintenance, replacement, and pressure change trends, and establishes a fault prediction model through big data analysis to achieve preventive maintenance.

[0012] Preferably, the cloud-based data management also includes: visualizing fire equipment pressure data, analyzing historical trends, and automatically generating compliance reports through the smart fire management cloud platform, to provide tamper-proof data credentials for fire safety compliance audits.

[0013] Preferably, the communication permissions of the long-term fire pressure sensing device are activated by issuing a digital certificate through the smart fire management cloud platform. Only encrypted data packets from legitimate devices with activated communication permissions can be transmitted to the inspection terminal device.

[0014] Preferably, the smart fire management cloud platform automatically generates inspection tasks and assigns them to responsible persons based on the location of fire equipment and inspection cycle strategy.

[0015] Preferably, the list of illegal equipment is automatically updated through the smart fire protection management cloud platform, enabling synchronous and rapid blocking of the entire fire protection equipment network data.

[0016] Preferably, during the uploading of inspection data, the inspection terminal device adds a timestamp to the inspection data to record the data collection time.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The long-lasting fire pressure sensing device adopts a low-power handshake-free Bluetooth communication module for data broadcasting. The inspection terminal device can directly receive encrypted data packets without establishing a handshake connection, which greatly shortens the data acquisition time and improves the data acquisition efficiency of on-site inspection. At the same time, the Bluetooth communication module is continuously dormant during non-collection periods, which effectively reduces the overall power consumption of the device. With the low-power chip design, it can achieve a long-lasting battery life of several years, which greatly reduces the cost of device maintenance and battery replacement. (2) The long-lasting fire pressure sensing device is equipped with a hardware-level identity identification module with a built-in tamper-proof unique device ID, which eliminates the problem of device identity impersonation and data confusion from the hardware level. At the same time, the collected data is encrypted and signed to ensure that it is not tampered with during data transmission. With the device identity legality verification in the cloud, it can effectively block the access of illegal devices and improve the security of the entire fire monitoring system. (3) Through the collaborative work of the long-term fire pressure sensing device, the on-site inspection terminal device and the smart fire management cloud platform, the on-site collection and verification of pressure data and the real-time cloud upload can be realized. It can not only detect pressure abnormalities and trigger alarms on-site, but also allow managers to grasp the pressure status of all fire equipment in the cloud in real time. Combined with full life cycle data storage and big data fault prediction, the fire management mode can be upgraded from passive response to active prevention, meeting the needs of smart fire refined management. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a physical image of an embodiment of the long-lasting fire-fighting pressure sensing device of the present invention.

[0019] Figure 2 This is a schematic diagram illustrating the use of an embodiment of the long-lasting fire-fighting pressure sensing device of the present invention.

[0020] Figure 3 This is an architectural diagram of an embodiment of the monitoring method for the long-lasting fire-fighting pressure sensing device of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In one embodiment, a long-lasting fire-fighting pressure sensing device is provided, such as... Figure 1 As shown, the long-lasting fire pressure sensing device 10 includes a housing 11, with a threaded connector 12 on one side of the housing 11. Inside the housing 11, there is a circuit board, a pressure sensing module, and a battery. The circuit board has a main control module, a Bluetooth communication module, and an identification module. The main control module has a data encryption program. The Bluetooth communication module is a low-power, handshake-free Bluetooth chip. The identification module is a chip with a built-in, tamper-proof, unique device ID. The pressure sensing module, Bluetooth communication module, and identification module are electrically connected to the main control module.

[0023] Combination Figure 2 As shown, when the long-lasting fire pressure sensing device is used, it is connected to the fire equipment 20 (fire extinguisher) via a multi-port connector 21. The multi-port connector 21 is provided with an interface 211 for connecting the nozzle, and a pressure gauge is connected to its right side.

[0024] The selection and functions of each functional module of this long-lasting fire-fighting pressure sensing device are as follows: The pressure sensing module can adopt the AMP6145ADR-H1 high-precision MEMS silicon piezoresistive pressure sensor from Suzhou Haohan Microelectronics Technology Co., Ltd. The measurement parameters of this pressure sensing module are as follows: Measurement range: 0.1~2MPa absolute pressure, suitable for fire-fighting equipment monitoring requirements of 0~2.0MPa; Pressure measurement accuracy: Typical absolute accuracy of ±6.8KPa in environments of 0.1~2MPa and 0~60°C; Absolute temperature accuracy of ±0.5℃ (25℃) and ±1.0℃ (0~65℃), with low temperature drift coefficient and accurate measurement; Power consumption: Operating current of 5.4μA at 1Hz output frequency, standby current of 0.1μA, ultra-low power consumption; Interface: I2C digital interface, highly compatible with MCUs; Package: 8-pin LGA metal cap, size 2.0×2.5×1.2mm³, miniaturized and easy to integrate; Environmental adaptability: Operating temperature -40~125°C, far exceeding the operating environment of fire-fighting equipment, and internally potted for waterproofing, suitable for high humidity scenarios.

[0025] The Bluetooth communication module uses a low-power Bluetooth chip, which supports Bluetooth near-field communication. Its core feature is handshake-free connection, which only transmits data. The low-power Bluetooth chip can achieve rapid identification and data transmission within a 10-meter range, adapting to the on-site operation requirements of fire inspection. The low-power Bluetooth chip, together with the main control module's sleep strategy, can reduce the overall power consumption of the device. The low-power Bluetooth chip supports real-time transmission of encrypted data, and the transmitted content is "encrypted device ID + encrypted pressure data + device status".

[0026] The identity module is a chip with a built-in, tamper-proof, unique device ID to achieve hardware-level identity identification.

[0027] The main control module uses an MCU microcontroller to communicate with the pressure sensing module via an I2C interface. It receives pressure data and performs preprocessing, while controlling the Bluetooth communication module for handshake-free data transmission. By setting a data encryption program in the main control module, pressure data and device ID can be encrypted and signed to prevent data tampering.

[0028] The power supply uses a CR2032 button cell battery, which operates at 3.0V DC and has a working current of only 7uA, ensuring long-lasting battery life. A voltage regulator circuit is installed on the circuit board, through which the battery supplies power to each module.

[0029] The encapsulated housing 11 adopts a waterproof and dustproof integrated encapsulation structure, which is suitable for the complex working environment of fire protection equipment. The housing 11 has dimensions of 36mm×36mm×46.2mm (L×W×H), the thread specification of the threaded connector is M10X1.0, the protection level of the housing 11 is IP54, which is suitable for fire pressure monitoring scenarios of 0~2.0MPa, and is suitable for working environments with temperatures of -30℃~50℃, humidity of 0~95%RH, and altitude of <2000m.

[0030] It should be noted that the components of this long-lasting fire-fighting pressure sensing device are not limited to the above-mentioned options. Specifically, the pressure sensing module can use a high-precision, low-power MEMS pressure sensor with performance similar to the AMP6145ADR-H1. For other brands of silicon piezoresistive pressure sensors of the same specifications that meet the requirements of 0.2MPa range, operating current ≤10μA, absolute accuracy ≤±10KPa, and support for I2C / SPI digital interfaces, the same pressure sensing effect can also be achieved by adjusting the interface driver of the main control module. For the Bluetooth communication module, under the premise of the handshake-free feature, the low-power Bluetooth protocol can be replaced with Bluetooth 5.0 / 5.1 low-power version, which can further improve the communication distance (e.g., 20 meters) and data transmission rate, adapting to a wider range of fire inspection scenarios. Only the firmware of the Bluetooth communication module needs to be adjusted, without changing the overall structure and working principle of the device. For battery selection, the CR2032 button cell battery can be replaced with a rechargeable lithium manganese button cell battery, which, with the help of a micro charging interface, allows for repeated charging and reuse of the battery, further reducing maintenance costs; or a button cell battery with a larger capacity can be selected to extend the device's battery life. Only the battery packaging structure inside the casing needs to be adjusted, without affecting the operation of other modules.

[0031] The connection and signal transmission relationships of the various functional modules of this long-lasting fire-fighting pressure sensing device are as follows: the SDA (serial data interface) and SCL (clock interface) of the pressure sensing module are bidirectionally connected to the I2C interface of the main control module; the VDD pin of the pressure sensing module is connected to the voltage regulator circuit, the GND pin is grounded, the VPP pin is left floating, and the NC pin is left floating and not connected; the Bluetooth communication module is connected to the main control module through a general-purpose I / O port, and the main control module sends data transmission commands to achieve handshake-free Bluetooth data transmission; the identification module is unidirectionally connected to the main control module, transmitting a unique device ID to the main control module to achieve binding between the device ID and the pressure data. The data encryption program is integrated into the main control module to perform real-time encryption and signing of the "pressure data + device ID" received by the main control module. The battery provides 3.0V DC power to the pressure sensing module, Bluetooth communication module, main control module, and identification module through the voltage regulator circuit, and the grounding pin of each module is uniformly connected to the GND of the voltage regulator circuit. All functional modules are integrated into the housing for encapsulation, and the pressure sensing end of the pressure sensing module is in contact with the pressure chamber of the fire-fighting equipment.

[0032] The working principle of this long-lasting fire-fighting pressure sensing device is as follows: 1. Pressure sensing and data processing principle: The pressure sensing module senses the pressure changes of the fire-fighting equipment in real time. The pressure signal is converted into an electrical signal through a MEMS silicon piezoresistive core. After amplification and digital compensation (zero point, sensitivity, temperature coefficient compensation) by an internal 24-bit ΔΣADC analog front-end, the original pressure and temperature data are output. The main control module reads the original data through the I2C interface and uses the calibration coefficient built into the pressure sensing module to complete data calculation, obtaining an accurate pressure value. Simultaneously, it combines temperature data to determine whether the pressure measurement is affected by ambient temperature, ensuring data validity. 2. Handshake-free Bluetooth communication principle: This device abandons the traditional Bluetooth handshake connection process. It pre-sets the communication protocol between the Bluetooth communication module and the on-site inspection terminal equipment (mobile phone / tablet) and the cloud management platform. The device ID is used as the communication identification code. The Bluetooth communication module continuously broadcasts a data packet containing "encrypted device ID + real-time pressure data." The inspection terminal or other receiving devices within a 10-meter range can directly receive the data packet without connection confirmation, achieving fast, handshake-free communication. 3. Long-lasting battery life principle: Both the pressure sensor module and the Bluetooth communication module, the two core functional modules, adopt ultra-low power consumption design. The main control module controls the device using an "intermittent operation + sleep" mode: during operation, the pressure sensor module collects data at a frequency of 1Hz, and the Bluetooth communication module only broadcasts data packets when data is updated, otherwise entering sleep mode; the overall operating current of the device is only 7uA, which can achieve long-lasting battery life with a CR2032 button battery, significantly reducing maintenance frequency. 4. Legitimate identification principle: The unique device ID of the identification module is designed with hardware-level immutability. The data encryption program encrypts and signs the device ID and pressure data. After the data is uploaded to the cloud platform, the platform verifies the device's legitimacy by comparing the unique ID with the database, preventing unauthorized device access.

[0033] Based on the above embodiments, it can be seen that the long-lasting fire pressure sensing device is a Bluetooth-based, handshake-free long-lasting fire pressure sensing device, which can be mainly used for pressure monitoring of fire extinguishers and other fire-fighting equipment. It integrates a high-precision low-power pressure sensing module, a handshake-free low-power Bluetooth communication module, and a unique identification module. It can be used in conjunction with a cloud-edge-device integrated smart fire management platform to realize timely collection of fire equipment pressure, handshake-free fast communication, legal network access management, and intelligent early warning of anomalies.

[0034] In one embodiment, a monitoring method for a long-lasting fire pressure sensing device is provided, combined with... Figure 3 As shown, the method includes: (1) Equipment installation: Install the long-term fire pressure sensing device in the previous embodiment on the fire-fighting equipment (intelligent fire extinguisher).

[0035] (2) Pressure monitoring: The pressure sensing module in the long-term fire-fighting pressure sensing device periodically collects the pressure data of the fire-fighting equipment and transmits it to the main control module. The main control module judges whether the working status of the fire-fighting equipment is normal based on the pressure data.

[0036] (3) Data encryption: The main control module binds the unique device ID of the fire-fighting equipment with the collected pressure data and the determined device working status. After being encrypted and signed by the data encryption module, an encrypted data packet of "device ID + pressure data + device working status" is obtained and temporarily stored locally.

[0037] (4) Inspection and data collection: During the data update, the main control module controls the Bluetooth communication module to enter the working state and continuously broadcasts encrypted data packets; the inspection personnel carry the inspection terminal equipment to conduct on-site data collection within the signal coverage area of ​​the Bluetooth communication module. The inspection terminal equipment directly receives the encrypted data packets broadcast by the Bluetooth communication module without establishing a handshake connection with the Bluetooth communication module; the Bluetooth communication module immediately enters the sleep state after broadcasting during the data update.

[0038] (5) Inspection and monitoring: The inspection terminal device decrypts the received encrypted data packets and displays the relevant data such as device ID, current pressure value and device status in real time. If the pressure value is detected to be outside the normal range, an on-site alarm is triggered immediately.

[0039] (6) Inspection data upload: The inspection terminal equipment uploads inspection data, including equipment ID, pressure data, inspection time, and inspection personnel, to the smart fire management cloud platform in real time via the mobile network.

[0040] (7) Cloud data management: After receiving the inspection data uploaded by the inspection terminal equipment, the smart fire protection management cloud platform first verifies the legality of the equipment ID and compares it with the legal equipment ID in the cloud database. If it is an illegal ID, the access is directly blocked and it is marked as a suspicious device; if it is a legal ID, the device network registration is completed and the pressure data is parsed and stored.

[0041] In the monitoring method of this long-term fire pressure sensing device, the data update period of the long-term fire pressure sensing device is preset, such as according to a preset fixed cycle of 15 days or one month. The Bluetooth communication module is automatically woken up to broadcast encrypted data packets. The inspection personnel conduct regular inspections according to the data update period. The inspection terminal equipment carried by the inspection personnel can directly receive the encrypted data packets within the signal coverage area. After completing the data collection, the data is uploaded to the smart fire management cloud platform, thereby improving the inspection efficiency.

[0042] In the monitoring method of this long-term fire-fighting pressure sensing device, the pressure sensing module performs pressure data acquisition at least once before the data update period. During the pressure data acquisition phase, the main control module controls the pressure sensing module to acquire the pressure data of the fire-fighting equipment at a frequency of 1Hz. After internal compensation and calculation by the pressure sensing module, the data is transmitted to the main control module through the I2C interface. The main control module binds the unique device ID with the pressure data and device status, and after encryption and signing by the data encryption module, it is temporarily stored locally. During the data update period, the main control module controls the Bluetooth communication module to enter the working state and continuously broadcasts the encrypted "device ID + pressure data + device working status" data packet. After the broadcast is completed, the Bluetooth communication module immediately enters the sleep state.

[0043] In the monitoring method of this long-lasting fire pressure sensing device, during the on-site inspection phase, the inspection personnel carry an inspection terminal device (mobile phone / tablet) within 10 meters of the fire equipment. The Bluetooth communication module of the device does not need to establish a handshake connection with the inspection terminal device. The inspection terminal device can directly receive the broadcast encrypted data packets. The inspection terminal device decrypts the data packets and displays the device ID, current pressure value, and device status (whether the pressure is normal) in real time. If the pressure value is detected to be outside the normal range (such as insufficient pressure in the fire extinguisher), an on-site alarm is immediately triggered. The inspection terminal device can upload the inspection data (device ID, pressure data, inspection time, and inspection personnel) to the smart fire management cloud platform in real time via the mobile network.

[0044] In addition to mobile phones / tablets, inspection terminal devices can also use professional equipment such as fire inspection instruments and handheld terminals. They can store data offline and upload it to the cloud platform after the inspection is completed to adapt to the inspection needs of different scenarios.

[0045] The intelligent fire management cloud platform here is the data management platform in the cloud-edge-device integrated fire management system. It is mainly responsible for storing the basic information of all connected long-term fire pressure sensing devices, device identity registration data, and historical pressure data collected from each inspection. Based on the stored historical data, it can analyze the pressure change trend of individual fire equipment. When abnormal pressure changes are detected, it can push early warning information to the platform administrators. At the same time, it can also perform statistical management of all connected fire equipment in the jurisdiction, display the overall online status of the equipment and the distribution information of abnormal equipment, and support the fire management department to carry out accurate investigation and maintenance of abnormal equipment.

[0046] In the cloud management phase, after receiving data packets uploaded by the inspection terminal, the smart fire management cloud platform first verifies the legality of the device ID by comparing it with the legal device IDs in the cloud database. If the ID is invalid, access is directly blocked and the device is marked as suspicious; if the ID is valid, the device is registered to join the network, and the pressure data is parsed and stored. The platform monitors the pressure status of all legally connected devices in real time, and displays the distribution and health status of devices through color coding and GIS map visualization. If abnormal pressure or offline devices are detected, multi-level alarms, including platform pop-ups and SMS notifications, are triggered within 5 seconds and pushed to management personnel. The platform also records the entire lifecycle data of the devices (inspection, maintenance, replacement, pressure change trends), and establishes a fault prediction model through big data analysis to achieve preventive maintenance.

[0047] In addition, cloud-based data management utilizes a smart fire protection management cloud platform to visualize fire equipment pressure data, analyze historical trends, and automatically generate compliance reports, providing tamper-proof data credentials for fire safety compliance audits.

[0048] Furthermore, by issuing digital certificates through the smart fire management cloud platform and activating the communication permissions of long-term fire pressure sensing devices, only encrypted data packets from legitimate devices with activated communication permissions can be transmitted to the inspection terminal equipment. Illegal devices that have not been activated with digital certificates cannot complete data transmission, thus blocking unauthorized devices from accessing the monitoring network at the source and ensuring the data security of the entire fire monitoring system.

[0049] Furthermore, the intelligent fire protection management cloud platform automatically generates inspection tasks and assigns them to responsible personnel based on the location of fire protection equipment and inspection cycle strategies. Through this division of labor, the inspection time and scope of jurisdiction are clearly defined. If the inspection task is not completed on time, an automatic reminder will be sent to the corresponding responsible person, ensuring that the inspection work is carried out as required and avoiding missed or uncompleted inspections.

[0050] Furthermore, by automatically updating the list of illegal equipment through the smart fire protection management cloud platform, the entire fire protection equipment network data can be blocked synchronously and quickly. This can prevent illegal equipment from continuously accessing the network and ensure the authenticity and reliability of the monitoring system's data.

[0051] In addition, during the data upload process, the inspection terminal device adds a timestamp to the inspection data to record the data collection time, and can also simultaneously record the identity information of the inspection personnel. All data is uploaded to the smart fire management cloud platform after being encrypted twice to prevent the data from being intercepted and tampered with during transmission, and to further ensure the integrity and traceability of the data.

[0052] Based on the above embodiments, compared with existing fire pressure sensing equipment and monitoring technologies, the monitoring method of this long-lasting fire pressure sensing equipment has the following advantages through its handshake-free Bluetooth protocol design, high-precision low-power sensor selection, and cloud-edge-device integrated collaborative architecture: 1. Significantly improved communication efficiency: Utilizing a handshake-free low-power Bluetooth communication module, rapid data acquisition from inspection terminal equipment can be achieved within a 10-meter range, resulting in high single-inspection success rate and efficiency. This avoids the time-consuming and inefficient handshake connection issues of traditional Bluetooth, adapting to the needs of rapid inspection at fire sites. 2. High monitoring accuracy and strong environmental adaptability: The AMP6145ADR-H1 high-precision pressure sensor is selected, with an absolute accuracy of ±6.8KPa, low temperature drift coefficient, and an operating temperature range of -40~125℃. It can achieve accurate pressure measurement in actual working environments of fire equipment from -30℃ to 50℃, avoiding measurement errors caused by environmental factors such as temperature and humidity. 3. Long-lasting battery life and low maintenance costs: Core components are designed for ultra-low power consumption, with an overall operating current of only 7uA. Powered by a CR2032 button battery, it eliminates the need for frequent battery replacements, achieving long-lasting battery life. The integrated modular design facilitates installation and maintenance, further reducing labor and material costs for fire management. 4. Secure and accurate equipment management: Built-in hardware-level tamper-proof unique device IDs, combined with data encryption and signature technology, ensure legitimate network access verification and data tamper-proofing, effectively blocking unauthorized device access and preventing data contamination. The cloud platform digitally archives equipment, enabling full lifecycle traceability management and improving asset control accuracy. 5. Proactive fire management: The integrated cloud-edge-device architecture enables real-time collection, uploading, and monitoring of pressure data. The platform establishes a fault prediction model based on pressure change trends, transforming from traditional "manual inspection and passive response" to "real-time monitoring and proactive early warning." Abnormal alarms are pushed within 5 seconds, significantly shortening emergency response time and greatly improving equipment availability. 6. Miniaturized and integrated design with strong adaptability: The main dimensions of the device are only 36mm×36mm×46.2mm, and the pressure sensing module is a miniature package of 2.0×2.5×1.2mm³. The shell is an integrated waterproof and dustproof package (IP54), which can be directly integrated into various fire-fighting equipment such as fire extinguishers and fire hydrants. It has strong adaptability and does not require major modifications to the existing fire-fighting equipment. 7. Strong data value mining capability: The cloud management platform can realize the visualization of pressure data, historical trend analysis, and automatic generation of compliance reports, providing tamper-proof data credentials for fire safety compliance audits. At the same time, it optimizes inspection and maintenance cycles through big data analysis, promoting the refinement and intelligence of fire management.

[0053] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-lasting fire-fighting pressure sensing device, comprising a housing, a threaded joint on one side of the housing, and a circuit board, a pressure sensing module, and a battery disposed within the housing, characterized in that: The circuit board is equipped with a main control module, a Bluetooth communication module, and an identification module. The main control module contains a data encryption program. The Bluetooth communication module is a low-power, handshake-free Bluetooth chip. The identification module is a chip with a built-in, tamper-proof, unique device ID. The pressure sensing module, Bluetooth communication module, and identification module are electrically connected to the main control module.

2. A method of monitoring a long-lasting fire-fighting pressure sensing device, characterized by, The method includes: Equipment installation: Install the long-lasting fire pressure sensing device as described in claim 1 on the fire-fighting equipment; Pressure monitoring: The pressure sensing module in the long-term fire-fighting pressure sensing device periodically collects the pressure data of the fire-fighting equipment and transmits it to the main control module. The main control module determines whether the working status of the fire-fighting equipment is normal based on the pressure data. Data encryption: The main control module binds the unique device ID of the fire-fighting equipment with the collected pressure data and the determined device working status. After being encrypted and signed by the data encryption module, an encrypted data packet of "device ID + pressure data + device working status" is obtained and temporarily stored locally. Inspection and data collection: During data updates, the main control module controls the Bluetooth communication module to enter working state and continuously broadcasts the encrypted data packets; inspection personnel carry inspection terminal devices to conduct on-site data collection within the signal coverage area of ​​the Bluetooth communication module. The inspection terminal devices directly receive the encrypted data packets broadcast by the Bluetooth communication module without establishing a handshake connection with the Bluetooth communication module; the Bluetooth communication module immediately enters sleep state after broadcasting during the data update period. Inspection and monitoring: The inspection terminal device decrypts the received encrypted data packets and displays relevant data such as device ID, current pressure value, and device status in real time. If the pressure value is detected to be outside the normal range, an on-site alarm is immediately triggered. Inspection data upload: The inspection terminal device uploads inspection data, including equipment ID, pressure data, inspection time, and inspection personnel, to the smart fire protection management cloud platform in real time via the mobile network; Cloud-based data management: After receiving the inspection data uploaded by the inspection terminal device, the smart fire protection management cloud platform first verifies the legality of the device ID and compares it with the legal device ID in the cloud database. If it is an illegal ID, the access is directly blocked and the device is marked as suspicious. If it is a legal ID, the device is registered to join the network and the pressure data is parsed and stored.

3. The method of monitoring a long-lasting fire protection pressure sensing device according to claim 2, characterized in that The cloud-based data management also includes: the smart fire protection management cloud platform monitors the pressure status of all legally connected devices in real time, and displays the distribution and health status of fire protection equipment through color coding and GIS map visualization.

4. The method of claim 2, wherein the long-term fire protection pressure sensing device is a pressure tank. The cloud-based data management also includes: if abnormal pressure or offline status of fire-fighting equipment is detected, triggering multi-level alarms via platform pop-ups and SMS notifications, and pushing them to management personnel.

5. The long-lasting fire pressure sensing device and monitoring method according to claim 2, wherein, The cloud-based data management also includes: the smart fire protection management cloud platform simultaneously records the entire lifecycle data of each fire protection equipment, including inspection, maintenance, replacement, and pressure change trends, and establishes a fault prediction model through big data analysis to achieve preventive maintenance.

6. The long-lasting fire pressure sensing device and monitoring method according to claim 2, wherein, The cloud-based data management also includes: visualizing fire equipment pressure data, analyzing historical trends, and automatically generating compliance reports through the smart fire management cloud platform, which provides tamper-proof data credentials for fire safety compliance audits.

7. The method of claim 2, wherein: The smart fire management cloud platform issues digital certificates and activates the communication permissions of the long-term fire pressure sensing device. Only encrypted data packets from legitimate devices with activated communication permissions can be transmitted to the inspection terminal device.

8. The method of claim 2, wherein: The intelligent fire protection management cloud platform automatically generates inspection tasks and assigns them to responsible persons based on the location of fire protection equipment and inspection cycle strategies.

9. The monitoring method of the long-term fire-fighting pressure sensing device according to claim 2, characterized in that: The intelligent fire protection management cloud platform automatically updates the list of illegal equipment, enabling synchronous and rapid blocking of the entire fire protection equipment network data.

10. The method of claim 2, wherein: During the uploading of inspection data, the inspection terminal device adds a timestamp to the inspection data to record the data collection time.

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