Intelligent well lid and intelligent well lid state monitor based on AIOT

Abstract

The utility model discloses an intelligent well lid and an intelligent well lid state monitor based on AIOT, and relates to the technical field of well lid monitoring. The intelligent well lid state monitor comprises a controller, a three-axis sensor connected with the controller, a floating ball switch, a photosensitive sensor, a double-color indicating lamp and a buzzer. And an SDO pin of the three-axis sensor is connected with a configuration level. And the SDA pin is connected with the GSDA pin of the controller. And an INT2 pin is connected with a GINT2 pin of the controller through a resistor. And the VDD pin is connected with the MEMS power supply. And the CS pin is connected with the MEMS power supply. And the NC pin is connected with the MEMS power supply through a resistor. And the SCL pin is connected with the GSCL pin of the controller and is connected with the MEMS power supply through the resistor. The middle end of the double-color indicating lamp is grounded, and the two ends of the double-color indicating lamp are connected with the SYSLED1 pin and the SYSLED2 pin of the controller through resistors respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole cover monitoring, and in particular to an intelligent manhole cover and an AIOT-based intelligent manhole cover status monitor. Background Art

[0002] In urban infrastructure management, manhole covers are an important part of underground pipelines, drainage systems, etc. Real-time monitoring of their safety status is of great significance for preventing urban accidents and ensuring the safety of citizens.

[0003] At present, there are many manhole cover monitoring technologies on the market, mainly including the following. Sensor technology: Use pressure, displacement, vibration and other sensors to monitor the physical status of the manhole cover, such as whether it is moved or opened. Wireless communication technology: Transmit monitoring data through wireless signals to achieve remote monitoring and data collection. Network service platform: Combined with APP or third-party platform, realize data visualization and remote operation. Positioning technology: Use GPS or other positioning systems to determine the geographical location of the manhole cover for easy management and maintenance.

[0004] Although the existing manhole cover monitoring technology has improved the level of intelligence in manhole cover management to a certain extent, there are still some obvious defects and challenges. Difficulty in judging the on-site status: The existing monitoring equipment often cannot intuitively display the working status of the equipment at the installation site, which makes data reading and status judgment inconvenient. High dependence on third-party platforms: Monitoring operations usually require the use of third-party platforms or APPs, which not only increases the complexity of operations, but also reduces work efficiency. Safety hazards: When the abnormal status of the manhole cover or underground environmental problems cannot be detected in time, they cannot be quickly reported to relevant personnel, thereby increasing the safety hazards of urban roads. Poor environmental adaptability: The underground environment is complex and changeable. The monitoring capabilities of existing equipment under extreme weather conditions (such as heavy rain, typhoons, high temperatures, etc.) are limited, and it is difficult to ensure continuous and stable monitoring.

[0005] In summary, although the existing manhole cover monitoring technology has achieved the monitoring and management of the manhole cover status to a certain extent, there is still much room for improvement in terms of intuitiveness, environmental adaptability, safety and exploration efficiency.

[0006] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0007] The utility model provides a smart manhole cover and an AIOT-based smart manhole cover status monitor, aiming to improve at least one of the above-mentioned technical problems.

[0008] In the first aspect, in order to solve the above technical problems, the utility model provides an AIOT-based intelligent manhole cover status monitor, which includes a controller, a three-axis sensor electrically connected to the controller, a float switch, a photosensor, and a two-color indicator light and a buzzer.

[0009] The electrical connection circuit of the three-axis sensor includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first capacitor and a second capacitor. Preferably, the SDO pin of the three-axis sensor is electrically connected to the configuration level through the first resistor. The SDA pin of the three-axis sensor is electrically connected to the G_SDA pin of the controller and is electrically connected to the VDDIO pin of the three-axis sensor through the second resistor. The VDDIO pin of the three-axis sensor is electrically connected to the MEMS power supply and is grounded through the first capacitor. The GND1 pin of the three-axis sensor is grounded. The INT2 pin of the three-axis sensor is electrically connected to the G_INT2 pin of the controller through the third resistor. The VDD pin of the three-axis sensor is electrically connected to the MEMS power supply and is grounded through the second capacitor. The GNDIO pin and the GND pin of the three-axis sensor are grounded. The CS pin of the three-axis sensor is electrically connected to the first end of the fourth resistor. The second end of the fourth resistor is electrically connected to the configuration level. The second end of the fourth resistor is electrically connected to the first end of the fifth resistor and the sixth resistor. The second end of the fifth resistor is electrically connected to the MEMS power supply. The second end of the sixth resistor is grounded. The NC pin of the three-axis sensor is electrically connected to the MEMS power supply through the seventh resistor. The SCL pin of the three-axis sensor is electrically connected to the G_SCL pin of the controller and is electrically connected to the MEMS power supply through the eighth resistor. The electrical connection circuit of the photosensitive sensor includes a ninth resistor.

[0010] In an optional embodiment, the dual-color indicator light is an LED dual-color indicator light. Preferably, the connection circuit of the dual-color indicator light comprises a twelfth resistor and a thirteenth resistor. The first end of the dual-color indicator light is electrically connected to the SYS_LED1 pin of the controller through the twelfth resistor. The second end of the dual-color indicator light is grounded. The third end of the dual-color indicator light is electrically connected to the SYS_LED2 pin of the controller through the thirteenth resistor.

[0011] In an optional embodiment, the electrical connection circuit of the float switch includes a first diode, a tenth resistor, a first bidirectional voltage regulator diode, an eleventh resistor and a third capacitor. The first end of the float switch is grounded. The second end of the float switch is electrically connected to the cathode of the first diode. The anode of the first diode is electrically connected to the VCC power supply through the tenth resistor. The anode of the first diode is grounded through the first bidirectional voltage regulator diode. The anode of the first diode is electrically connected to the first end of the eleventh resistor. The second end of the eleventh resistor is electrically connected to the DI_FU pin of the controller and is grounded through the third capacitor.

[0012] In an optional embodiment, the first end of the photosensor is grounded. The second end of the photosensor is electrically connected to the GR pin of the controller, and is electrically connected to the VCC power supply through the ninth resistor.

[0013] In an optional embodiment, the connection circuit of the buzzer includes a fourth capacitor, a second diode, an NPN transistor, a fourteenth resistor and a fifteenth resistor. The first end of the buzzer is electrically connected to the VCC power supply. The first end of the buzzer is electrically connected to the second end of the buzzer through the fourth capacitor. The first end of the buzzer is electrically connected to the cathode of the second diode. The second end of the buzzer is electrically connected to the anode of the second diode. The second end of the buzzer is electrically connected to the collector of the NPN transistor. The emitter of the NPN transistor is grounded. The base of the NPN transistor is electrically connected to the BEEN pin of the controller through the fourteenth resistor. The base of the NPN transistor is electrically connected to the emitter of the NPN transistor through the fifteenth resistor.

[0014] In an optional embodiment, the model of the three-axis sensor is SC7A22.

[0015] In an optional embodiment, the model of the controller is RA2E1. Preferably, the G_SDA pin is the P207 port of the controller. The G_INT2 pin is the P101 port of the controller. The G_SCL pin is the P208 port of the controller. The GR pin is the P001 port of the controller. The DI_FU pin is the P401 port of the controller. The SYS_LED1 pin is the P500 port of the controller. The SYS_LED2 pin is the P100 port of the controller. The BEEN pin is the P000 port of the controller.

[0016] In an optional embodiment, the intelligent manhole cover status monitor further includes a battery and a first power supply circuit. The output of the battery is used as a VCC power supply. The first power supply circuit is configured to adjust the voltage of the VCC power supply to a preset voltage to output a MEMS power supply.

[0017] In an optional embodiment, the intelligent manhole cover status monitor also includes a tipping sensor, a water immersion sensor, a temperature sensor and a communication chip electrically connected to the controller, and a PCB antenna module electrically connected to the communication chip.

[0018] In an optional embodiment, the intelligent manhole cover status monitor further comprises a reed switch electrically connected to the controller, wherein the reed switch is used for magnetic wake-up.

[0019] The intelligent manhole cover status monitor also includes a housing. The controller, the three-axis sensor, the photosensor, the two-color indicator light, the buzzer, the battery, the tipping sensor, the water immersion sensor, the temperature sensor, the communication chip and the PCB antenna module are all connected to the housing.

[0020] In a second aspect, the utility model provides a smart manhole cover, which integrates an AIOT-based smart manhole cover status monitor as described in any paragraph of the first aspect.

[0021] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0022] The AIOT-based intelligent manhole cover status monitor of the utility model embodiment has dual-color LED indication and other prompts, multiple sensor monitoring to ensure the normal operation of the equipment, and sound alarm warning function. The indicator light and warning sound can realize the rapid implementation of on-site work, simplify the operation process of the equipment by the user, make installation and use more convenient, and improve work efficiency. The multiple sensor monitoring includes: three-axis sensor, water immersion sensor and photosensitive sensor to monitor the manhole cover and the underground status and environment in real time, and timely alarm and report data when abnormal movement is found, so as to reduce risks, reduce safety hazards, and ensure the normal operation of the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the components of the intelligent manhole cover status monitor.

[0025] Figure 2 This is the circuit diagram of the controller.

[0026] Figure 3 It is the circuit diagram of the three-axis sensor.

[0027] Figure 4 This is the circuit diagram of the photosensor.

[0028] Figure 5 This is the circuit diagram of the float switch.

[0029] Figure 6 It is the circuit diagram of the indicator light.

[0030] Figure 7 This is the circuit diagram of the buzzer.

[0031] Figure 8 is a circuit diagram of the first power supply circuit.

[0032] Numbers in the figure: U5-three-axis sensor, J3-float switch, G1-photosensitive sensor, D5-two-color indicator light, U140-buzzer, D2-first bidirectional voltage regulator diode, Q22-NPN transistor, R22-first resistor, R24-second resistor, R26-third resistor, R23-fourth resistor, R21-fifth resistor, R25-sixth resistor, R18-seventh resistor, R19-eighth resistor, R46-ninth resistor, R16-tenth resistor, R27-eleventh resistor, R44-twelfth resistor, R45-thirteenth resistor, R463-fourteenth resistor, R464-fifteenth resistor, C25-first capacitor, C24-second capacitor, C22-third capacitor, C354-fourth capacitor, D6-first diode, D1-second diode. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] Embodiment 1: Figures 1 to 8 As shown, the embodiment of the utility model provides an AIOT-based intelligent manhole cover status monitor. It can be installed on the back of the manhole cover to sense the status of the manhole cover.

[0035] After extensive research, the inventor of the utility model found that the existing manhole cover status monitoring equipment cannot visually judge the equipment status at the installation site, which is not conducive to data reading and status judgment. It needs to rely on a third-party platform or APP to assist in operation, with cumbersome steps and low work efficiency. The underground environment is complex and harsh. It is difficult to monitor the status of the manhole cover and the underground environment in extreme weather (such as heavy rain, typhoons, high temperatures, etc.). If it is not reported to relevant personnel in time, the hidden dangers of urban road safety will be greatly increased. Manholes are spread all over every corner of cities, large and small. Due to the low positioning accuracy of the operator's network, it is impossible to quickly find the specific location specified by the equipment on site. Every manhole cover on site must be opened for inspection, which increases the survey work and difficulty. An AIOT-based intelligent manhole cover status monitor in the embodiment of the utility model can solve the problems of difficulty in data reading and status judgment, the inability to report the status of manhole covers and underground in time, and the inability to quickly locate the survey work.

[0036] like Figure 1 As shown, the AIOT-based intelligent manhole cover status monitor includes a controller, a three-axis sensor U5, a float switch J3, a photosensor G1, and a two-color indicator light D5 and a buzzer U140 electrically connected to the controller.

[0037] like Figure 2 and Figure 8 As shown, based on the above embodiment, in an optional embodiment of the utility model, the intelligent manhole cover status monitor further includes a battery and a first power supply circuit. The output of the battery is used as a VCC power supply. The first power supply circuit is configured to be able to adjust the voltage of the VCC power supply to a preset voltage to output a MEMS power supply.

[0038] Specifically, the battery is a 8.5mAh lithium-ion battery used to power the device. The VCC power supply is a 3.6V voltage output by the battery. The MEMS power supply is a 2.8V voltage obtained by stepping down the VCC power supply through the first power supply circuit. The first power supply circuit is as follows: Figure 8 As shown, the first power supply circuit reduces the 3.6V VCC power supply output by the battery to 2.8V through the voltage regulator U4 to obtain the MEMS power supply. Preferably, the model of the voltage regulator U4 is RT9080.

[0039] like Figure 2 As shown, preferably, the model of the controller is RA2E1. In this embodiment, the G_SDA pin is the P207 port of the controller. The G_INT2 pin is the P101 port of the controller. The G_SCL pin is the P208 port of the controller. The GR pin is the P001 port of the controller. The DI_FU pin is the P401 port of the controller. The SYS_LED1 pin is the P500 port of the controller. The SYS_LED2 pin is the P100 port of the controller. The BEEN pin is the P000 port of the controller.

[0040] like Figure 2 and Figure 3 As shown, the electrical connection circuit of the three-axis sensor U5 includes a first resistor R22, a second resistor R24, a third resistor R26, a fourth resistor R23, a fifth resistor R21, a sixth resistor R25, a seventh resistor R18, an eighth resistor R19, a first capacitor C25 and a second capacitor C24. Preferably, the model of the three-axis sensor U5 is SC7A22. The SDO pin of the three-axis sensor U5 is electrically connected to the configuration level through the first resistor R22. The SDA pin of the three-axis sensor U5 is electrically connected to the G_SDA pin of the controller and is electrically connected to the VDDIO pin of the three-axis sensor U5 through the second resistor R24. The VDDIO pin of the three-axis sensor U5 is electrically connected to the MEMS power supply and is grounded through the first capacitor C25. The GND1 pin of the three-axis sensor U5 is grounded. The INT2 pin of the three-axis sensor U5 is electrically connected to the G_INT2 pin of the controller through the third resistor R26. The VDD pin of the three-axis sensor U5 is electrically connected to the MEMS power supply and is grounded through the second capacitor C24. The GNDIO pin and the GND pin of the three-axis sensor U5 are grounded. The CS pin of the three-axis sensor U5 is electrically connected to the first end of the fourth resistor R23. The second end of the fourth resistor R23 is electrically connected to the configuration level. The second end of the fourth resistor R23 is electrically connected to the first end of the fifth resistor R21 and the sixth resistor R25. The second end of the fifth resistor R21 is electrically connected to the MEMS power supply. The second end of the sixth resistor R25 is grounded. The NC pin of the three-axis sensor U5 is electrically connected to the MEMS power supply through the seventh resistor R18. The SCL pin of the three-axis sensor U5 is electrically connected to the G_SCL pin of the controller, and is electrically connected to the MEMS power supply through the eighth resistor R19.

[0041] In this embodiment, the three-axis G-sensor can collect the installation angle of the monitoring equipment and monitor the movement of the manhole cover. The angle range is 0° to 180°. It is used for manhole cover alarm. If there is a deviation or movement, it will be reported immediately. It can timely detect whether the manhole cover is lifted. In electronic circuits, the configuration level refers to a specific voltage or signal level in the circuit, which is used to set or change the working state of the circuit. SC7A22 is a low-power MCU. Specifically, the SC7A22 three-axis sensor U5 transmits the detected data to the controller MCU for processing through MCU_G_SCL, MCU_G_SDA, and G_INT2. The MCU decides whether to report based on the angle comparison threshold detected in real time.

[0042] like Figure 2 and Figure 6As shown, based on the above embodiment, in an optional embodiment of the utility model, the two-color indicator light D5 is an LED two-color indicator light D5. Preferably, the connection circuit of the two-color indicator light D5 includes a twelfth resistor R44 and a thirteenth resistor R45. The first end of the two-color indicator light D5 is electrically connected to the SYS_LED1 pin of the controller through the twelfth resistor R44. The second end of the two-color indicator light D5 is grounded. The third end of the two-color indicator light D5 is electrically connected to the SYS_LED2 pin of the controller through the thirteenth resistor R45.

[0043] In this embodiment, the dual-color LED indicator can indicate the power-on and sleep status, network status, data transmission and reception status, water immersion alarm prompt, low voltage prompt, temperature alarm prompt, and manhole cover damage prompt. It is convenient for on-site installation to quickly identify the manhole cover power-on and network status, water immersion, low voltage, temperature and manhole cover damage alarm prompts, which is conducive to on-site inspection and rapid identification and discovery of abnormal status, and can quickly realize data reading and information judgment without auxiliary tools, simplifying the operation process and improving work efficiency.

[0044] Specifically, the red LED light is connected to the MCU pin P500. The green LED light is connected to the MCU pin P100. The controller MUC expresses the received information of power on / off, network status, data transmission / reception, voltage, temperature, photosensor G1, and water immersion sensor through the on / off and flashing logic of the LED indicator light.

[0045] like Figure 2 and Figure 5 As shown, based on the above embodiments, in an optional embodiment of the utility model, the electrical connection circuit of the float switch J3 includes a first diode D6, a tenth resistor R16, a first bidirectional voltage regulator diode D2, an eleventh resistor R27 and a third capacitor C22. The first end of the float switch J3 is grounded. The second end of the float switch J3 is electrically connected to the cathode of the first diode D6. The anode of the first diode D6 is electrically connected to the VCC power supply through the tenth resistor R16. The anode of the first diode D6 is grounded through the first bidirectional voltage regulator diode D2. The anode of the first diode D6 is electrically connected to the first end of the eleventh resistor R27. The second end of the eleventh resistor R27 is electrically connected to the DI_FU pin of the controller and is grounded through the third capacitor C22.

[0046] In this embodiment, one IO port of the controller is connected to a float level switch for underground liquid level monitoring. The IO port is connected to a float switch J3 to monitor the underground liquid level in real time, and the customized water level height alarm is suitable for various application scenarios; specifically, the IO signal of the float switch J3 transmits the water level information to the controller MCU through DI_FU.

[0047] like Figure 2 and Figure 4 As shown, the electrical connection circuit of the photosensitive sensor G1 includes a ninth resistor R46. The first end of the photosensitive sensor G1 is grounded. The second end of the photosensitive sensor G1 is electrically connected to the GR pin of the controller and is electrically connected to the VCC power supply through the ninth resistor R46.

[0048] In this embodiment, the photosensitive sensor G1 can monitor whether the manhole cover is damaged, and multiple sensors monitor the manhole cover and the underground state to ensure road safety. Specifically, the signal of the photosensitive sensor G1 is given to the controller MCU through the GR to determine whether the manhole cover is damaged.

[0049] like Figure 2 and Figure 7 As shown, based on the above embodiments, in an optional embodiment of the utility model, the connection circuit of the buzzer U140 includes a fourth capacitor C354, a second diode D1, an NPN transistor Q22, a fourteenth resistor R463 and a fifteenth resistor R464. The first end of the buzzer U140 is electrically connected to the VCC power supply. The first end of the buzzer U140 is electrically connected to the second end of the buzzer U140 through the fourth capacitor C354. The first end of the buzzer U140 is electrically connected to the cathode of the second diode D1. The second end of the buzzer U140 is electrically connected to the anode of the second diode D1. The second end of the buzzer U140 is electrically connected to the collector of the NPN transistor Q22. The emitter of the NPN transistor Q22 is grounded. The base of the NPN transistor Q22 is electrically connected to the BEEN pin of the controller through the fourteenth resistor R463. The base of the NPN transistor Q22 is electrically connected to the emitter of the NPN transistor Q22 through the fifteenth resistor R464.

[0050] In this embodiment, the device supports sound warnings. When the device detects damage to the manhole cover, abnormal tilt, or flooding, it reports data and issues an alarm. When the staff arrives near the survey site, they can quickly locate the manhole cover through the device's warning sound and accurately find the specific manhole cover. In addition, the abnormal warning sound can quickly determine whether there are abnormal conditions underground, without the need to open each manhole cover for manual inspection or to check through the platform, thereby improving the efficiency of the verification work. Specifically, the buzzer U140 is connected to pin 48 of the controller MCU through BEEN. The controller MCU converts the received sensor information into alarm logic and expresses it externally through the buzzer U140.

[0051] On the basis of the above embodiments, in an optional embodiment of the utility model, the intelligent manhole cover status monitor further includes a tipping sensor, a water immersion sensor, a temperature sensor and a communication chip electrically connected to the controller, and a PCB antenna module electrically connected to the communication chip. Preferably, the intelligent manhole cover status monitor further includes a reed switch electrically connected to the controller. The reed switch is used for magnetic wake-up.

[0052] Specifically, the communication module is used for remote data transmission and local parameter configuration. The PCB antenna module is built-in; preferably, the communication module is used for data communication through a SIM card. The built-in water immersion sensor can monitor whether the device is flooded.

[0053] On the basis of the above embodiment, in an optional embodiment of the utility model, the intelligent manhole cover status monitor further comprises a housing. The controller, the three-axis sensor U5, the photosensor G1, the two-color indicator light D5, the buzzer U140, the battery, the tipping sensor, the water immersion sensor, the temperature sensor, the communication chip and the PCB antenna module are all connected to the housing.

[0054] The AIOT-based intelligent manhole cover status monitor of the present utility model embodiment is provided with a yellow housing. In other embodiments, it can be set to other colors and shapes, and the present utility model does not specifically limit this. A two-color LED indicator light is provided on the front of the monitor to indicate the power-on, network and working status.

[0055] An AIOT-based intelligent manhole cover status monitor in the embodiment of the utility model has dual-color LED indication and other prompts, multiple sensor monitoring to ensure the normal operation of the equipment, and sound alarm warning sound function. The indicator light and warning sound can realize the rapid implementation of on-site work, simplify the operation process of the equipment for users, make installation and use more convenient, and improve work efficiency. Multi-sensor monitoring includes: three-axis sensor U5, water immersion sensor and photosensitive sensor G1 real-time monitoring of the manhole cover and underground status and environment, timely alarm and report data when abnormal movement is found, reduce risks, reduce safety hazards, and ensure the normal operation of the road.

[0056] In the second embodiment, the present invention provides a smart manhole cover, which is integrated with an AIOT-based smart manhole cover status monitor as described in any paragraph of the first embodiment.

[0057] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An AIOT-based intelligent manhole cover status monitor, characterized in that: It comprises a controller, a three-axis sensor (U5), a float switch (J3), a photosensitive sensor (G1), a two-color indicator light (D5) and a buzzer (U140) electrically connected to the controller; The electrical connection circuit of the three-axis sensor (U5) comprises a first resistor (R22), a second resistor (R24), a third resistor (R26), a fourth resistor (R23), a fifth resistor (R21), a sixth resistor (R25), a seventh resistor (R18), an eighth resistor (R19), a first capacitor (C25) and a second capacitor (C24); the SDO pin of the three-axis sensor (U5) is electrically connected to the configuration level through the first resistor (R22); the SDA pin of the three-axis sensor (U5) is electrically connected to the G_SDA pin of the controller and is electrically connected to the VDDIO pin of the three-axis sensor (U5) through the second resistor (R24); the VDDIO pin of the three-axis sensor (U5) is electrically connected to the MEMS power supply and is grounded through the first capacitor (C25); the GND1 pin of the three-axis sensor (U5) is grounded; the INT2 pin of the three-axis sensor (U5) is electrically connected to the MEMS power supply through the third resistor (R26); connected to the G_INT2 pin of the controller; the VDD pin of the three-axis sensor (U5) is electrically connected to the MEMS power supply and is grounded through the second capacitor (C24); the GNDIO pin and the GND pin of the three-axis sensor (U5) are grounded; the CS pin of the three-axis sensor (U5) is electrically connected to the first end of the fourth resistor (R23); the second end of the fourth resistor (R23) is electrically connected to the configuration level; the second end of the fourth resistor (R23) is electrically connected to the first ends of the fifth resistor (R21) and the sixth resistor (R25); the second end of the fifth resistor (R21) is electrically connected to the MEMS power supply; the second end of the sixth resistor (R25) is grounded; the NC pin of the three-axis sensor (U5) is electrically connected to the MEMS power supply through the seventh resistor (R18); the SCL pin of the three-axis sensor (U5) is electrically connected to the G_SCL pin of the controller and is electrically connected to the MEMS power supply through the eighth resistor (R19); The dual-color indicator light (D5) is an LED dual-color indicator light (D5); the connection circuit of the dual-color indicator light (D5) comprises a twelfth resistor (R44) and a thirteenth resistor (R45); the first end of the dual-color indicator light (D5) is electrically connected to the SYS_LED1 pin of the controller through the twelfth resistor (R44); the second end of the dual-color indicator light (D5) is grounded; and the third end of the dual-color indicator light (D5) is electrically connected to the SYS_LED2 pin of the controller through the thirteenth resistor (R45).

2. According to claim 1, the intelligent manhole cover status monitor based on AIOT is characterized in that The electrical connection circuit of the float switch (J3) comprises a first diode (D6), a tenth resistor (R16), a first bidirectional voltage regulator diode (D2), an eleventh resistor (R27) and a third capacitor (C22); the first end of the float switch (J3) is grounded; the second end of the float switch (J3) is electrically connected to the cathode of the first diode (D6); the anode of the first diode (D6) is electrically connected to the VCC power supply through the tenth resistor (R16); the anode of the first diode (D6) is grounded through the first bidirectional voltage regulator diode (D2); the anode of the first diode (D6) is electrically connected to the first end of the eleventh resistor (R27); the second end of the eleventh resistor (R27) is electrically connected to the DI_FU pin of the controller and is grounded through the third capacitor (C22).

3. According to claim 1, the AIOT-based intelligent manhole cover status monitor is characterized in that The electrical connection circuit of the photosensor (G1) includes a ninth resistor (R46); a first end of the photosensor (G1) is grounded; a second end of the photosensor (G1) is electrically connected to a GR pin of a controller, and is electrically connected to a VCC power supply through the ninth resistor (R46).

4. According to claim 1, the AIOT-based intelligent manhole cover status monitor is characterized in that The connection circuit of the buzzer (U140) includes a fourth capacitor (C354), a second diode (D1), an NPN transistor (Q22), a fourteenth resistor (R463) and a fifteenth resistor (R464); the first end of the buzzer (U140) is electrically connected to the VCC power supply; the first end of the buzzer (U140) is electrically connected to the second end of the buzzer (U140) through the fourth capacitor (C354); the first end of the buzzer (U140) is electrically connected to the cathode of the second diode (D1) ; The second end of the buzzer (U140) is electrically connected to the positive electrode of the second diode (D1); The second end of the buzzer (U140) is electrically connected to the collector of the NPN transistor (Q22); The emitter of the NPN transistor (Q22) is grounded; The base of the NPN transistor (Q22) is electrically connected to the BEEN pin of the controller through a fourteenth resistor (R463); The base of the NPN transistor (Q22) is electrically connected to the emitter of the NPN transistor (Q22) through a fifteenth resistor (R464).

5. The AIOT-based intelligent manhole cover status monitor according to any one of claims 1 to 4, characterized in that ,The model of the three-axis sensor (U5) is SC7A22.

6. The AIOT-based intelligent manhole cover status monitor according to any one of claims 1 to 4, characterized in that , the model of the controller is RA2E1; The G_SDA pin is the P207 port of the controller; the G_INT2 pin is the P101 port of the controller; the G_SCL pin is the P208 port of the controller; the GR pin is the P001 port of the controller; the DI_FU pin is the P401 port of the controller; the SYS_LED1 pin is the P500 port of the controller; the SYS_LED2 pin is the P100 port of the controller; and the BEEN pin is the P000 port of the controller.

7. The AIOT-based intelligent manhole cover status monitor according to any one of claims 1 to 4, characterized in that The intelligent manhole cover status monitor also includes a battery and a first power supply circuit; wherein the output of the battery serves as a VCC power supply; and the first power supply circuit is configured to be able to adjust the voltage of the VCC power supply to a preset voltage to output a MEMS power supply.

8. The AIOT-based intelligent manhole cover status monitor according to claim 7 is characterized in that ,The intelligent manhole cover status monitor also includes a tipping sensor, a water immersion sensor, a temperature sensor and a communication chip electrically connected to the controller, and a PCB antenna module electrically connected to the communication chip.

9. According to claim 8, an AIOT-based intelligent manhole cover status monitor is characterized in that ,The intelligent manhole cover status monitor also includes a reed switch electrically connected to the controller; wherein the reed switch is used for magnetic wake-up; The intelligent manhole cover status monitor also includes a shell; the controller, the three-axis sensor (U5), the photosensor (G1), the two-color indicator light (D5), the buzzer (U140), the battery, the tipping sensor, the water immersion sensor, the temperature sensor, the communication chip and the PCB antenna module are all connected to the shell.

10. An intelligent manhole cover, characterized in that: An AIOT-based intelligent manhole cover status monitor as described in any one of claims 1 to 9 is integrated.

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