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CN-121977505-A - Low-power consumption wireless inclination monitoring system powered by batteries in cooperation

CN121977505ACN 121977505 ACN121977505 ACN 121977505ACN-121977505-A

Abstract

The invention discloses a battery-powered low-power-consumption wireless inclination angle monitoring system, and belongs to the technical field of engineering monitoring. The solar energy photovoltaic device comprises a solar photovoltaic panel, a top cover, a shell, a base, a core control board (embedded with a submicron level dormancy operation circuit module), a solar energy charging and discharging module, an inclination angle sensing module and a wireless communication module. The micro-ampere sleep operation circuit module has the advantages that 1) standby current is less than 1 mu A, low power consumption is controlled through a clock, a far-ultra-traditional low power consumption MCU low power consumption scheme is adopted, 2) solar energy and lithium batteries are used for supplying power in a cooperative mode, a solar photovoltaic panel is embedded into a top cover to supply energy, the lithium batteries are used as main energy sources, 3) an edge calculation and lightweight threshold early warning model is supported, model optimization is achieved through OTA, full scene coverage such as period monitoring and encryption monitoring is achieved, and 4) an integral waterproof structure and a bracket-free design are adopted, and rapid deployment in the wild is adapted.

Inventors

  • LIU MINGQIANG
  • SUN HUI
  • WU DEXING
  • SONG GANG
  • Zeng Wenhu

Assignees

  • 贵州省电子工业研究所

Dates

Publication Date
20260505
Application Date
20260119

Claims (8)

  1. 1. The battery-powered low-power consumption wireless dip angle monitoring system is characterized by comprising a solar photovoltaic panel (1), a top cover (2), a shell (3), a base (4), a debugging interface (5), a stick antenna (6), a solar charging and discharging module (10), a core control board (12) and a submicron-level dormancy operation circuit module; The submicron level dormancy operation circuit module is embedded into the core control board (12) and is used for controlling the standby wakeup of the system; The core control board (12) is fastened with a reserved threaded hole of the base (4) through a second hexagonal copper column (13) in a threaded manner, and an annular waterproof adhesive tape (15) is assembled at the contact part; the solar charging and discharging module (10) and the core control board (12) are supported and fixed through a hexagonal copper column I (11), and are electrically connected through a flat cable; the contact part of the top cover (2) and the shell (3) is provided with an annular waterproof adhesive tape I (14), and the solar photovoltaic panel (1) is embedded into the top cover (2) and bonded through vulcanized rubber; The base (4) is provided with a mounting hole (7), and one side of the shell (3) is provided with a debugging interface (5) and a rod antenna (6); The core control board (12) integrates a low-power consumption MCU, a power management module, a wireless communication module, an RS485 debugging communication module, an inclination angle sensing module, a voltage acquisition module and a data storage module, and the solar charging and discharging module (10) integrates a battery seat (9), a lithium battery (8) and a charging and discharging control circuit.
  2. 2. The system of claim 1, wherein the submicron sleep operation circuit module is composed of logic gates, latches, clocks, resistors, capacitors and a shielding case, and is provided with a power input/output interface, a communication interface, an enabling interface, an external trigger port and an external control interface; the power supply input of the submicron level dormancy operation circuit module is electrically connected with the output of the solar charging and discharging module (10) and the lithium battery (8), the power supply output is electrically connected with the power supply management module, the communication interface is electrically connected with the low-power consumption MCU communication interface, the external control interface and the enabling interface are respectively electrically connected with the external control end or the low-power consumption MCU control pin, and the external trigger port is electrically connected with the external trigger event interface; The system adopts a low power consumption scheme with clock control as a core, wherein the current is controlled to be less than 1 mu A by a submicron level dormancy operation circuit module during standby, the dormancy is started through an external control interface after the internal low power consumption MCU of the system executes service logic, and the dormancy is exited through an external trigger port during external triggering or timing monitoring, so that the monitoring and transmission are ensured and the energy consumption is minimized.
  3. 3. The system of claim 1, wherein the system supports edge calculation and lightweight threshold early warning models, full scene coverage is achieved by setting periodic monitoring, encryption monitoring, protective monitoring, ultra early warning interrupt monitoring, model optimization is deployed by OTA; The submicron level dormancy operation circuit module acquires an abnormal state through the acceleration sensing module, starts monitoring in an interrupt mode, acquires battery voltage through the voltage acquisition module, starts protective monitoring when the voltage is low, starts encryption monitoring when monitoring data reach a hierarchical early warning value, shortens the period, and executes set period monitoring in a normal state, and the daily storage times of the data storage module are less than or equal to 320 times.
  4. 4. The system of claim 1, wherein the inclination angle sensing module is assembled by welding the inclination angle sensing module on a central reserved position A of a core control board (12) horizontally and welding and fixing the inclination angle sensing module on a central reserved position B of a long side of the core control board (12) vertically, the chip model of the inclination angle sensing module is SCL3400-D01, the low-power consumption MCU model is STM32F103RCT6, and the power management module adopts TPS54302 and FP6715S6C chips.
  5. 5. The system according to claim 1, characterized in that the core chip of the solar charge-discharge module (10) is CN3791; the output anode of the solar photovoltaic panel (1) is connected with the grounding end of the polarity electrolytic capacitor EC1 and the capacitor C1 in parallel through the diode D1, and is connected with the pin 9 of the CN 3791; The pin 3 of CN3791 is connected with the output anode of the solar photovoltaic panel (1) through the serially connected light emitting diode D5 and the resistor R1, the pin 4 of CN3791 is connected with the output anode of the solar photovoltaic panel (1) through the serially connected light emitting diode D4 and the resistor R1, the pin 1 of CN3791 is connected with the output anode of the solar photovoltaic panel (1) through the serially connected capacitor C4, the pin 5 of CN3791 is grounded through the serially connected resistor R4 and the capacitor C5, and the pin 6 of CN3791 is respectively connected with the output anode of the solar photovoltaic panel (1) and the grounding end through the pull-up resistor R3; The pin 10 of CN3791 is connected with the grid electrode of a field effect tube Q1, the source electrode of the field effect tube Q1 is connected with the output anode of a solar photovoltaic panel (1), the drain electrode of the field effect tube is connected with a diode D2 and a power inductor L1 which are connected in series, the pin 7 of CN3791 is connected with the other end of the power inductor L1 and a resistor RCS1, the pin 8 of CN3791 is connected with the other ends of a capacitor C2, a capacitor C3 and a resistor RCS1, the other end of the capacitor C2 is connected with the other end of the capacitor C3 and a grounding end, the cathode of a battery seat (9) is grounded, and the rear end of the cathode and the anode is connected with a core control board (12) through a flat cable.
  6. 6. The system according to claim 1, wherein the debug interface (5) has 4 pins, pin 1 is connected to the positive output of the battery of the solar charge-discharge module (10), pin 2 is connected to the positive input of the core control board (12), pin 3 is connected to the signal output of the RS485 debug communication module a, and pin 4 is connected to the signal output of the RS485 debug communication module B.
  7. 7. The system of claim 1, further comprising a timed wake-up circuit consisting of a single phase inverter U6, a nand gate U3, an and gate U2, an or gate U1, a flip-flop U5, and a clock chip U4; The pin 2 of the single-phase inverter U6 is connected with an external forced wake-up signal M_INT, the pin 4 of the single-phase inverter U6 is connected with the pin 1 of the NAND gate U3, the pin 2 of the AND gate U2 is connected with a timing interrupt signal 8563_INT, the pin 1 of the AND gate U2 is connected with an acceleration trigger signal 367_INT, the pin 4 of the AND gate U2 is connected with the pin 2 of the OR gate U1, the pin 4 of the OR gate U1 is connected with the pin 2 of the NAND gate, the pin 4 of the NAND gate U3 is connected with the pin 2 of the trigger U5, the pin 4 of the trigger U5 is connected with the pin 4 of the clock chip U4, When the clock chip U4 is interrupted or triggered forcefully, the enabling pin of the FP6715S6C chip in the power management module is pulled up through a logic gate circuit, and the system is awakened to execute monitoring; The model of the single-phase inverter U6 is 74HC1G04, the model of the NAND gate U3 is 74AHC1G00, the model of the AND gate U2 is 74HC1G08, the model of the OR gate U1 is 74HC1G32, the model of the trigger U5 is SN74LVC1G80, and the model of the clock chip U4 is PCF8563T.
  8. 8. The system of claim 1, wherein the system is provided with an OTA automatic upgrade module, and the upgrade procedure comprises: 1) The host reads the version of the equipment, when the version is older, the equipment initiates the upgrade, resets and restarts after receiving the upgrade information, and marks flash as in the upgrade; 2) If the mark is that the upgrade is completed, counting the restarting times, and jumping to an old program and clearing the mark when the times are more than 3; 3) The equipment receives the upgrade data and writes the upgrade data into the flash, and marks the upgrade completion and jumps to a new program when the upgrade is complete and the number of times is +1; 4) After the new program is started successfully, the mark and the restarting times are cleared, and the host reads the new version to confirm that the upgrading is completed.

Description

Low-power consumption wireless inclination monitoring system powered by batteries in cooperation Technical Field The invention relates to the technical field of engineering monitoring, in particular to a battery-powered low-power-consumption wireless inclination angle monitoring system. Background With the rapid development of science and technology and the continuous expansion of the construction scale of infrastructure, the number of buildings and engineering structures has increased greatly, and the monitoring task has become more complex. In particular to the safety monitoring in the fields of bridges, tunnels, geological disasters and the like, and is closely related to the life and property safety of people. In recent years, various safety accidents frequently occur, and the attention of society on engineering safety problems is further deepened. Therefore, ensuring engineering safety and preventing natural disaster accidents have become the primary task for current development. The traditional monitoring means is limited by a power supply and a transmission distance, has three defects, and is difficult to meet the requirements of long-term and real-time monitoring. Firstly, the battery is replaced by depending on commercial power or periodically, and the maintenance cost is high when the battery is deployed in the field; secondly, the power consumption is high, the precision is low, the long-time cruising cannot be realized, the stability is influenced, thirdly, the engineering deployment is difficult, a photovoltaic bracket or a mounting bracket is needed, and the equipment deployment efficiency and the use cost are increased. Disclosure of Invention The invention aims to solve the problems of low endurance, high cost, low precision and difficult deployment of the existing tilt monitoring system, and provides a low-power-consumption wireless inclinometer monitoring system based on solar energy and a battery, which can effectively solve the problems by combining a wireless transmission technology and improve the reliability and stability of the tilt monitoring system. In order to achieve the above object, the present invention provides a battery-powered wireless tilt angle monitoring system with low power consumption, comprising: the solar energy photovoltaic device comprises a solar energy photovoltaic panel, a top cover, a shell, a base, a debugging interface, a rod antenna, a solar energy charging and discharging module, a core control board and a submicron level dormancy operation circuit module; The submicron level dormancy operation circuit module is embedded into the core control board and is used for controlling the system to be awakened in a standby mode; the core control board is fastened with the reserved threaded hole of the base through a second hexagonal copper column in a threaded manner, and an annular waterproof adhesive tape II is assembled at the contact part; the solar charging and discharging module is fixedly supported by the core control board through a hexagonal copper column I, and the solar charging and discharging module and the core control board are electrically connected through a flat cable; the contact part of the top cover and the shell is provided with an annular waterproof adhesive tape I, and the solar photovoltaic panel is embedded into the top cover and is bonded through vulcanized rubber; the base is provided with a mounting hole, and one side of the shell is provided with a debugging interface and a rod antenna; The core control board is integrated with a low-power consumption MCU, a power management module, a wireless communication module, an RS485 debugging communication module, an inclination angle sensing module, a voltage acquisition module and a data storage module, and the solar charging and discharging module is integrated with a battery seat, a lithium battery and a charging and discharging control circuit. The submicron level dormancy operation circuit module consists of a logic gate, a latch, a clock, a resistor, a capacitor and a shielding cover, and is provided with a power input/output interface, a communication interface, an enabling interface, an external trigger port and an external control interface; The power input of the submicron sleep operation circuit module is electrically connected with the output of the solar charging and discharging module and the lithium battery, the power output is electrically connected with the power management module, the communication interface is electrically connected with the low-power consumption MCU communication interface, the external control interface and the enabling interface are respectively electrically connected with an external control end or a low-power consumption MCU control pin, and the external trigger port is electrically connected with an external trigger event interface; The system adopts a low-power consumption scheme taking clock control as a core, wherein the current is controlled to be