Road surface collapse monitoring and alarming device

Abstract

A pavement collapse monitoring alarm device relates to the field of roads. The device comprises an inclination sensor, a positioning module, a network transmission module, a central processing unit and an alarm, the inclination sensor is arranged at a target position of a road surface and used for detecting the inclination angle of the target position of the road surface and generating an inclination signal when the inclination angle is detected to be larger than a preset value; the positioning module is used for detecting the target position of the position where the inclination sensor generating the inclination signal is located to obtain the position data of the collapse position of the road surface; the network transmission module is connected to the inclination sensor and the positioning module so as to acquire the inclination signal and the position data and send the position data; the central processing unit is connected to the network transmission module so as to obtain the tilt signal; the alarm is connected to the central processing unit, and the central processing unit responds to the inclination signal so as to drive a motor of the alarm to give an alarm.

Description

Technical Field

[0001] The utility model relates to the field of roads, and particularly to a pavement collapse monitoring and alarming device. Background Art

[0002] With the development of the road transportation industry, road transportation plays an increasingly important role in the current social economy. Transportation construction is a basic industry of the country and a leading industry for economic development. Road construction has improved the structure of the road network, stimulated the economic prosperity and development of the areas near highways, played an important role in regional economic development, and at the same time provided important convenience for people's lives.

[0003] However, due to factors such as structural aging, construction quality problems, and extreme weather, highway bridges may collapse, and ordinary sections and slopes may experience landslides. When the above situations occur, using manual monitoring methods for monitoring and detection is a time-consuming task and lacks real-time performance. In addition, the lack of timeliness in manual monitoring methods will also cause time delays in rescue, resulting in greater economic losses. Content of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a pavement collapse monitoring and alarming device that can automatically detect whether the pavement has collapsed.

[0005] According to a first aspect, in one embodiment, a pavement collapse monitoring and alarming device is provided, including:

[0006] An inclination sensor, which is arranged at a target position of the pavement, is used to detect the inclination angle of the target position of the pavement, and generates an inclination signal when the detected inclination angle is greater than a preset value;

[0007] A positioning module, which is used to detect the target position of the inclination sensor that generates the inclination signal, and obtain the position data of the pavement collapse location;

[0008] A network transmission module, which is connected to the inclination sensor and the positioning module to obtain the inclination signal and position data, and send the position data;

[0009] A central processing unit, which is connected to the network transmission module to obtain the inclination signal;

[0010] An alarm, which is connected to the central processing unit, and the central processing unit drives the motor of the alarm to give an alarm in response to the inclination signal.

[0011] In one embodiment, the network transmission module includes an AIR780E chip, and the AIR780E chip includes an external input interrupt port, and the external input interrupt port is connected to the sensor to obtain the tilt signal.

[0012] In one embodiment, the central processing unit includes an STM32F103C8T6 chip, and the STM32F103C8T6 chip includes a second serial port receiving port, a second serial port transmitting port, and an output port. The AIR780E chip further includes a first serial port receiving port and a first serial port transmitting port. The second serial port receiving port is connected to the first serial port transmitting port, and the second serial port transmitting port is connected to the first serial port receiving port to obtain the tilt signal; the output port is connected to the alarm.

[0013] In one embodiment, the positioning module includes an MS34SN3 chip, and the MS34SN3 chip includes a first transmitting port and a first receiving port. The AIR780E chip further includes a first auxiliary serial port receiving port and a first auxiliary serial port transmitting port. The first transmitting port is connected to the first auxiliary serial port receiving port, and the first receiving port is connected to the first auxiliary serial port transmitting port to send the position data to the network transmission module.

[0014] In one embodiment, the alarm includes a CP118 chip, and the CP118 chip includes an access port, a first full-bridge output port, and a second full-bridge output port. The access port is connected to the output port, and the first full-bridge output port and the second full-bridge output port are used to drive the motor.

[0015] In one embodiment, the road surface collapse monitoring and alarm device further includes a power supply module, and the power supply module includes a charging controller and a lithium battery. The charging controller includes a CN3791 chip, and the CN3791 chip includes a first open-drain state output port, a second open-drain state output port, a positive output port, and a negative output port. The first open-drain state output port and the second open-drain state output port are used to connect the solar panel, and the positive output port and the negative output port are connected to the lithium battery.

[0016] In one embodiment, the road surface collapse monitoring and alarming device further includes a DC conversion module. The DC conversion module includes an MT3608B chip and an FR9206 chip. The MT3608B chip includes a first voltage input port, a first enable port, and a first switch port. The first voltage input port is connected to the lithium battery, the first enable port is connected to the central processor, and the first switch port outputs the boosted voltage of the lithium battery. The FR9206 chip includes a second voltage input port and a second switch port. The second voltage input port is connected to the first switch port, and the second switch port outputs the stepped-down voltage of the lithium battery to be used as the working power supply for the network transmission module and the central processor.

[0017] In one embodiment, the road surface collapse monitoring and alarming device further includes a wireless communication module. The wireless communication module includes an SX1278 chip. The SX1278 chip includes a first reset port, a first chip select port, a first master input port, a first slave input port, a first clock port, and an antenna port. The STM32F103C8T6 chip includes a second reset port, a second chip select port, a second master input port, a second slave input port, and a second clock port. The first reset port is connected to the second reset port, the first chip select port is connected to the second chip select port, the first master input port is connected to the second master input port, the first slave input port is connected to the second slave input port, the first clock port is connected to the second clock port, and the antenna port is used to connect to an antenna for wireless transmission.

[0018] In one embodiment, the road surface collapse monitoring and alarming device further includes an RS485 communication module. The RS485 communication module includes an SP3485 chip. The SP3485 chip includes a first data output port, a first data input port, a second enable port, and a driver output port. The STM32F103C8T6 chip further includes a second data output port, a second data input port, and a clock port. The first data output port is connected to the second data input port, the first data input port is connected to the second data output port, the second enable port is connected to the clock port, and the driver output port is used to connect to an external device with a set function.

[0019] In one embodiment, the road surface collapse monitoring and alarming device is disposed on the road surface through ground spikes.

[0020] For the road surface collapse monitoring and alarm device according to the above embodiments, an inclination sensor is provided in the road surface collapse monitoring and alarm device. The inclination sensor is arranged at the target position of the road surface to detect the inclination angle of the target position of the road surface, and when the detected inclination angle is greater than the preset value, an inclination signal is generated. Thus, when the road surface collapses, the inclination sensor can also immediately obtain the inclination signal. After the inclination sensor obtains the inclination signal, the positioning module is used to determine the position data where the inclination signal is located. The network transmission module obtains the inclination signal and the position data and remotely sends the position data. After the central processor obtains the inclination signal, it drives the motor of the alarm to give an alarm, so as to be able to detect and alarm the road surface collapse in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic structural diagram of a road surface collapse monitoring and alarm device according to an embodiment;

[0022] Figure 2 Schematic diagram of the setting of an inclination sensor on a bridge pier according to an embodiment;

[0023] Figure 3 Schematic diagram of the setting of an inclination sensor on a road surface according to an embodiment;

[0024] Figure 4 Schematic diagram of the chip connection of a positioning module according to an embodiment;

[0025] Figure 5 Schematic diagram of the chip connection of a network transmission module according to an embodiment;

[0026] Figure 6 Schematic diagram of the chip connection of a first SIM storage chip according to an embodiment;

[0027] Figure 7 Schematic diagram of the chip connection of a second SIM storage chip according to an embodiment;

[0028] Figure 8 Schematic diagram of the chip connection of a central processor according to an embodiment;

[0029] Figure 9 Schematic diagram of the chip connection of an alarm according to an embodiment;

[0030] Figure 10 Schematic diagram of the chip connection of a power supply module according to an embodiment;

[0031] Figure 11 Schematic diagram of the chip connection of a first MT3608B chip according to an embodiment;

[0032] Figure 12 Schematic diagram of the chip connection of a second MT3608B chip according to an embodiment;

[0033] Figure 13 A chip connection diagram of a FR9206 chip according to an embodiment;

[0034] Figure 14 A schematic diagram of chip connection of a wireless communication module according to an embodiment;

[0035] Figure 15 A schematic diagram of chip connection of an RS485 module of an embodiment;

[0036] Figure 16 A schematic diagram of chip connection of a relay module according to an embodiment. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0039] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0040] The present application provides a road collapse monitoring and alarm device, which uses the device to monitor the collapse of highway bridges, landslides in ordinary roads, and landslides on slopes in real time. When the device topples over, an abnormal road surface alarm is issued and sent to the cloud and navigation system through the 4G network. The cloud sends an alarm message to the maintenance unit as soon as possible, and links with the monitoring center to release traffic abnormality guidance information.

[0041] Please refer to Figure 1 , this application provides a road surface collapse monitoring and alarming device 100, which includes an inclination sensor 110, a positioning module 120, a network transmission module 130, a central processing unit 140, an alarm 150, a power supply module 160, a DC conversion module 170, a wireless communication module 180, and an RS485 communication module 190.

[0042] Please refer to Figure 2 and Figure 3 , in an embodiment, when the device 100 is used to monitor the road surface collapse, the road surface collapse monitoring and alarming device 100 is set on the road surface through ground nails, and the inclination sensor 100 is set at the target position of the road surface to detect the inclination angle of the target position of the road surface, and when the detected inclination angle is greater than the preset value, an inclination signal is generated. Moreover, the horizontal position where the inclination sensor 110 is located is parallel to the road surface, so that the inclination signal of the road surface collapse can be obtained in a timely manner. When the device 100 is used to monitor the pier toppling, the road surface collapse monitoring and alarming device 100 is installed on the pier facade, and the horizontal position where the inclination sensor 110 is located is perpendicular to the pier inside, so as to obtain the inclination signal of the pier toppling. When the device 100 is used to monitor the bridge surface collapse, the road surface collapse monitoring and alarming device 100 is installed on the bridge surface or on the concrete guardrails on both sides of the bridge surface, and the horizontal position where the inclination sensor 110 is located is parallel to the bridge surface, so as to obtain the inclination signal of the bridge surface collapse.

[0043] It should be noted that the inclination sensor 110 works based on the principle of gravity induction, and determines the inclination angle by measuring the change in the direction of gravity, so as to determine the inclination signal.

[0044] Please refer to Figure 4 , in an embodiment, the positioning module 130 is used to obtain the position data of the location where the inclination signal is located. The positioning module 130 includes an MS34SN3 chip, a resistor R23, a resistor R42, a resistor R43, and a resistor R24. The MS34SN3 chip includes a GNSS TX port and a GNSS RX port. The GNSS RX port is connected to the first end of the resistor R42, and the second end of the resistor R42 is used as the first transmission port AUX TX. The first end of the resistor R42 is connected to the first end of the resistor R23, the second end of the resistor R23 is connected to the working power supply, and the second end of the resistor R42 is also connected to the second end of the resistor R23. The GNSS TX port is connected to the first end of the resistor R43, the second end of the resistor R43 is used as the first receiving port AUX RX, the first end of the resistor R24 is connected to the first end of the resistor R43, the second end of the resistor R24 is connected to the working power supply, and the second end of the resistor R24 is also connected to the second end of the resistor R43.

[0045] It should be noted that the MS34SN3 chip is a positioning signal, which can achieve centimeter-level positioning accuracy. While maintaining ultra-low power consumption, it greatly improves the positioning accuracy of the device.

[0046] Please refer to Figure 5 In one embodiment, the network transmission module 140 is connected to the tilt sensor 110 and the positioning module 120 to obtain tilt signals and position data, send the tilt signals to the central processor, and remotely send the position data. The network transmission module 140 includes an AIR780E chip. The AIR780E chip includes an external input interrupt port AGPIOWU0, a first auxiliary serial port receiving port AUX_RXD, and a first auxiliary serial port transmitting port AUX_TXD. The external input interrupt port AGPIOWU0 is connected to the tilt sensor 110 to obtain tilt signals. The first transmitting port AUX_TX is connected to the first auxiliary serial port receiving port AUX_RXD, and the first receiving port AUX_RX is connected to the first auxiliary serial port transmitting port AUX_TXD to send the position data to the network transmission module.

[0047] In one embodiment, the AIR780E chip further includes a NET_STATUS port. The NET_STATUS port is connected to the first end of a resistor R70. The second end of the resistor R70 is connected to the control end of a switching transistor Q3. The first end of the switching transistor Q3 is grounded. The first end of the switching transistor Q3 is also connected to the first end of a resistor R72. The second end of the resistor R72 is connected to the second end of the resistor R70. The second end of the switching transistor Q3 is connected to the first end of a resistor R8. The second end of the resistor R8 is connected to the output end of a diode D11. The output end of the diode D11 is connected to the working power supply. In the AIR780E chip, the diode D11 is on for 0.2 seconds and off for 1.8 seconds, indicating that the network transmission module 130 is searching for a network; the diode D11 is on for 1.8 seconds and off for 0.2 seconds, indicating that the network transmission module 130 is in the standby state; the diode D11 is on for 0.125 seconds and off for 0.125 seconds, indicating that the network transmission module 130 is performing data transmission.

[0048] It should be noted that the AIR780E chip is an LTE Cat1 wireless communication module designed based on the Yixin EC618 platform, supporting 4G long-distance wireless transmission technologies such as FDD-LTE / TDD-LTE. In addition, the module provides general interfaces such as USB / UART / I2C to meet various application requirements in the IoT industry. The network transmission module 140 sends the tilt signal to the central processor 150 through the AIR780E chip and remotely propagates the position data to be sent to the cloud.

[0049] In one embodiment, the road surface collapse monitoring and alarm device 100 further includes a SIM storage module 200, and the SIM storage module 200 is connected to the AIR780E chip to store the data in the AIR780E. The SIM storage module 200 includes a first SIM storage chip NANOSIM and a second SIM storage chip NANOSIM.

[0050] Please refer to Figure 6 , in one embodiment, the first SIM storage chip NANOSIM includes a first storage clock port CLK, a first storage data port DAT, a first storage receive port RST, and a first storage voltage port VDD. The AIR780E chip further includes a USIM_DATA port, a USIM_RST port, a USIM_CLK port, and a SUIM_VDD port. The USIM_DATA port is connected to the first end of a resistor R35, and the second end of the resistor R35 is connected to the first storage data port DAT. The USIM_DATA port is also connected to the first end of a capacitor C47, and the second end of the capacitor C47 is grounded. The USIM_RST port is connected to the first end of a resistor R36, and the second end of the resistor R36 is connected to the first storage receive port RST. The USIM_RST port is also connected to the first end of a capacitor C46, and the second end of the capacitor C46 is grounded. The USIM_CLK port is connected to the first end of a resistor R37, and the second end of the resistor R37 is connected to the first storage clock port CLK. The USIM_CLK port is also connected to the first end of a capacitor C45, and the second end of the capacitor C45 is grounded. The SUIM_VDD port is connected to the first storage voltage port VDD, and the SUIM_VDD port is also connected to the first end of a capacitor C12, and the second end of the capacitor C12 is grounded.

[0051] Please refer to Figure 7, in one embodiment, the second SIM storage chip NANOSIM includes a second storage clock port CLK, a second storage data port DAT, a second storage receive port RST, and a second storage voltage port VDD. The AIR780E chip further includes a USIM2_DATA port, a USIM2_RST port, a USIM2_CLK port, and a SUIM2_VDD port. The USIM2_DATA port is connected to the first end of a resistor R88. The second end of the resistor R88 is connected to the second storage data port DAT. The USIM2_DATA port is also connected to the first end of a capacitor C57. The second end of the capacitor C57 is grounded. The USIM2_RST port is connected to the first end of a resistor R89. The second end of the resistor R89 is connected to the second storage receive port RST. The USIM2_RST port is also connected to the first end of a capacitor C56. The second end of the capacitor C56 is grounded. The USIM2_CLK port is connected to the first end of a resistor R87. The second end of the resistor R87 is connected to the second storage clock port CLK. The USIM2_CLK port is also connected to the first end of a capacitor C58. The second end of the capacitor C58 is grounded. The SUIM2_VDD port is connected to the second storage voltage port VDD. The SUIM_VDD port is connected to the first end of a capacitor C54. The second end of the capacitor C54 is grounded.

[0052] Please refer to Figure 8 , in one embodiment, the central processing unit 140 is connected to the network transmission module 130 to obtain the tilt signal. The central processing unit 140 includes an STM32F103C8T6 chip. The STM32F103C8T6 chip includes a second serial port receive port PB11, a second serial port transmit port PB10, an output port PA5, and an output port PA6. The AIR780E chip further includes a first serial port receive port MAIN_RXD and a first serial port transmit port MAIN_TXD. The second serial port transmit port PB10 is connected to the first end of a resistor R38. The second end of the resistor R38 is connected to the first serial port receive port MAIN_RXD. The first serial port receive port MAIN_RXD is also connected to the first end of a resistor R21. The second end of the resistor R21 is connected to the operating voltage. The second serial port receive port PB11 is connected to the first end of a resistor R39. The second end of the resistor R39 is connected to the second serial port transmit port MAIN_TXD. The second serial port transmit port MAIN_TXD is also connected to the first end of a resistor R22. The second end of the resistor R22 is connected to the operating voltage.

[0053] Please refer to Figure 9, in one embodiment, the alarm 150 is connected to the central processor 140, and the central processor 140 responds to the tilt signal to drive the motor of the alarm 150 to give an alarm. The alarm 150 includes a CP118 chip, and the CP118 chip includes an access port INA, an access port INB, a first full-bridge output port PUTA, and a second full-bridge output port OUTB. The output port PA6 is connected to the first end of the resistor R45, the second end of the resistor R45 is connected to the access port INA, the output port PA5 is connected to the first end of the resistor R46, the second end of the resistor R46 is connected to the access port INB, the output port PA6 is also connected to the first end of the resistor R25, the second end of the resistor R25 is connected to the working power supply, the output port PA5 is also connected to the first end of the resistor R26, and the second end of the resistor R26 is connected to the working power supply. The first full-bridge output port PUTA and the second full-bridge output port OUTB are used to drive the motor. The first full-bridge output port PUTA is also connected to the first end of the capacitor C19, the second end of the capacitor C19 is grounded, the second full-bridge output port OUTB is also connected to the first end of the capacitor C20, the second end of the capacitor C20 is grounded, the first full-bridge output port PUTA is also connected to the first end of the capacitor C21, and the second end of the capacitor C21 is connected to the second full-bridge output port OUTB.

[0054] Please refer to Figure 10, in one embodiment, the power supply module 160 includes a charging controller 161, a lithium battery 162, and a protection module 163. The charging controller 161 includes a CN3791 chip. The CN3791 chip includes a first open-drain output port CHRG, a second open-drain output port DONE, a DC power input port VCC, a power tracking port MPPT, a voltage regulation port VG, a drive port DRV, a positive output port CSP, a negative output port BAT, and a compensation input port COM. The solar panel is respectively connected to the first end and the second end of a capacitor C1. The second end of the capacitor C1 is grounded. The first end of the capacitor C1 is further connected to the first end of a capacitor C2. The second end of the capacitor C2 is grounded. The first end of the capacitor C2 is further connected to the first end of a resistor R1. The first end of the resistor R1 is connected to the first end of a resistor R2. The second end of the resistor R2 is grounded. The first end of the resistor R2 is connected to the power tracking port MPPT. The second end of the capacitor C2 is further connected to the first end of a resistor R7. The second end of the resistor R7 is connected to the input end of a light-emitting diode D2. The output end of the light-emitting diode D2 is connected to the first open-drain output port CHRG. The second end of the resistor R7 is further connected to the input end of a diode D1. The output end of the diode D1 is connected to the second open-drain output port DONE. The first end of the resistor R7 is further connected to the DC power input port VCC. The first end of the resistor R7 is further connected to the first end of a capacitor C3. The second end of the capacitor C3 is connected to the voltage regulation port VG. The first end of the capacitor C3 is further connected to the first end of a switching transistor Q1. The control end of the switching transistor Q1 is connected to the drive port DRV. The second end of the switching transistor Q1 is connected to the input end of a diode D3. The output end of the diode D3 is connected to the output end of a diode D4. The input end of the diode D4 is grounded. The output end of the diode D3 is further connected to the first end of an inductor L1. The second end of the inductor L1 is connected to the first end of a resistor R9. The second end of the resistor R9 is connected to the first end of a resistor R10. The second end of the resistor R10 is connected to the first end of the resistor R9. The first end of the resistor R9 is connected to the positive output port CSP. The second end of the resistor R10 is connected to the negative output port BAT. The compensation input port COM is connected to the first end of a capacitor C4. The second end of the capacitor C4 is grounded. The second end of the resistor R9 is connected to the first end of a capacitor C5. The second end of the capacitor C5 is grounded. The first end of the capacitor C5 is further connected to the first end of a capacitor C6. The second end of the capacitor C6 is grounded. The first end of the capacitor C6 is connected to the first port of a lithium battery J2. The lithium battery J2 is connected to the first port of a switch J3. The second port of the switch J3 is used for outputting electric power.The protection module 163 includes an XB8886A chip. The XB8886A chip includes a power supply port VDD, a negative terminal port VM, a ground port GND, and a pad port EP. The first end of a capacitor C6 is connected to the first end of a resistor R11. The second end of the resistor R11 is connected to the power supply port VDD. The first end of the capacitor C6 is also connected to the first end of a capacitor C7. The second end of the capacitor C7 is connected to the second port of a lithium battery J2. The second port of the lithium battery J2 is connected to the ground port GND and the pad port EP. The negative terminal port VM is grounded.

[0055] It should be noted that the CN3791 chip is a PWM switching mode lithium-ion battery charger controller and can be powered by a photovoltaic cell with a maximum power point tracking function. The XB8886A chip has all the protection functions required in battery applications, including overcharge, over-discharge, over-current, and load short-circuit protection, etc. The accurate overcharge detection voltage ensures safe charging and full utilization.

[0056] Please refer to Figure 11 In one embodiment, the DC conversion module 170 includes a first MT3608B chip, a second MT3608B chip, and an FR9206 chip. The first MT3608B chip includes a first voltage input port VIN, a first enable port EN, a first switch port SW, and a first feedback port FB. The first end of the first enable port EN is connected to the first end of a resistor R62. The second end of the resistor R62 is connected to the working power supply. The first end of the resistor R62 is also connected to the first end of a resistor R60. The second end of the resistor R60 is connected to the 12V enable terminal of the central processor (i.e., the PC14 - OSC32_IN port in the STM32F103C8T6 chip). The first voltage input port VIN is connected to the second port of a switch J3. The first voltage input port VIN is connected to the first end of a capacitor C33. The second end of the capacitor C33 is grounded. The first voltage input port VIN is also connected to the first end of an inductor L2. The second end of the inductor L2 is connected to the first switch port SW. The first switch port SW is connected to the input end of a diode D5. The output end of the diode D5 is connected to the first end of a resistor R65. The second end of the resistor R65 is connected to the first feedback port FB. The second end of the resistor R65 is connected to the first end of a resistor R3. The second end of the resistor R3 is grounded. The output end of the diode D5 is connected to the first end of a capacitor C34. The second end of the capacitor C34 is grounded. The first end of the capacitor C34 is connected to the first end of a fuse F1. The second end of the fuse F1 is used to output the boosted lithium battery voltage, which is the DC 12V voltage.

[0057] Please refer to Figure 12, In one embodiment, the second MT3608B chip includes a third voltage input port VIN, a third enable port EN, a third switch port SW, and a third feedback port FB. The first end of the third enable port EN is connected to the first end of a resistor R63. The second end of the resistor R63 is connected to the working power supply. The first end of the resistor R63 is also connected to the first end of a resistor R61. The second end of the resistor R61 is connected to the 5V enable terminal of the central processor (i.e., the PC14 - OSC32_OUT port in the STM32F103C8T6 chip). The third voltage input port VIN is connected to the second port of a switch J3. The third voltage input port VIN is connected to the first end of a capacitor C35. The second end of the capacitor C35 is grounded. The third voltage input port VIN is also connected to the first end of an inductor L3. The second end of the inductor L3 is connected to the third switch port SW. The third switch port SW is connected to the input terminal of a diode D6. The output terminal of the diode D6 is connected to the first end of a resistor R66. The second end of the resistor R66 is connected to the third feedback port FB. The second end of the resistor R66 is connected to the first end of a resistor R4. The second end of the resistor R4 is grounded. The output terminal of the diode D6 is connected to the first end of a capacitor C36. The second end of the capacitor C36 is grounded. The first end of the capacitor C36 is connected to the first end of a fuse F2. The second end of the fuse F2 is used to output the boosted lithium battery voltage, which is the 5V voltage.

[0058] Please refer to Figure 13, In one embodiment, the FR9206 chip includes a second voltage input port VIN, a second shutdown port SHDN, a second boost voltage port BST, a second inductor connection port LX, a second feedback port FB, and a ground port FND. The second voltage input port VIN is connected to the second end of the fuse F2. The second voltage input port VIN is also connected to the first end of the capacitor C31. The second end of the capacitor C31 is connected to the ground port GND. The second voltage input port VIN is also connected to the first end of the capacitor C9. The second end of the capacitor C9 is connected to the ground port GND. The second voltage input port VIN is also connected to the first end of the resistor R64. The second end of the resistor R64 is connected to the second shutdown port SHDN. The second boost voltage port BST is connected to the first end of the capacitor C10. The second end of the capacitor C10 is connected to the second inductor connection port LX. The second inductor connection port LX is connected to the first end of the inductor L4. The second end of the inductor L4 is connected to the first end of the resistor R67. The second end of the resistor R67 is connected to the second feedback port FB. The second end of the resistor R67 is also connected to the first end of the resistor R68. The second end of the resistor R68 is grounded. The first end of the resistor R67 is also connected to the first end of the capacitor C37. The second end of the capacitor C37 is connected to the second end of the resistor R67. The first end of the capacitor C37 is also connected to the first end of the capacitor C32. The second end of the capacitor C32 is grounded. The first end of the capacitor C32 is also connected to the first end of the capacitor C38. The second end of the capacitor C38 is grounded. The first end of the capacitor C38 is also connected to the first end of the capacitor C11. The second end of the capacitor C11 is grounded. The first end of the capacitor C11 is also connected to the first end of the resistor R12. The second end of the resistor R12 is connected to the input end of the light-emitting diode D10. The output end of the light-emitting diode D10 is grounded. The first end of the resistor R12 is also connected to the first end of the chip bead L6. The second end of the chip bead L6 is used to output the stepped-down lithium battery voltage, that is, to output a 3.3V voltage, as the working power supply of the network transmission module 130. The first end of the resistor R12 is also connected to the first end of the chip bead L5. The second end of the chip bead L5 is used to output the stepped-down lithium battery voltage, that is, to output a 3.3V voltage, as the working power supply of the central processing unit 140.

[0059] Please refer to Figure 14, In one embodiment, the wireless communication module 180 includes an SX1278 chip. The SX1278 chip includes a first reset port RST, a first chip select port SEL, a first master input port MOSI, a first slave input port MISO, a first clock port CLK, and an antenna port ANT. The STM32F103C8T6 includes a second reset port PA8, a second chip select port PB12, a second master input port PB15, a second slave input port PB14, and a second clock port PB13. The first reset port RST is connected to the second reset port PA8, the first chip select port SEL is connected to the second chip select port PB12, the first master input port MOSI is connected to the second master input port PB15, the first slave input port MISO is connected to the second slave input port PB14, the first clock port CLK is connected to the second clock port PB13, and the antenna port ANT is used to connect to an antenna for wireless transmission.

[0060] It should be noted that the STM32F103C8T6 chip is connected to the SX1278 chip to achieve wireless communication. The SX1278 is a LoRa (Long Range) wireless radio frequency chip, which is widely used in long-distance and low-power wireless communication applications. Connecting the STM32F103C8T6 chip to the SX1278 chip can wirelessly transmit the tilt signal in the STM32F103C8T6 chip using LoRa technology.

[0061] Please refer to Figure 15, in one embodiment, the RS485 module 190 includes an SP3485 chip. The SP3485 chip includes a first data output port RO, a first data input port DI, a second enable port DE, a driver output port A, a driver output port B, a ground port GND, and a power supply port VCC. The driver output port A and the driver output port B are used to connect external devices with set functions. The STM32F103C8T6 chip also includes a second data input port PA3, a second data output port PA2, and a clock port PA1. The second data input port PA3 is connected to the first end of a resistor R27, the second end of the resistor R27 is connected to the working power supply, the second data input port PA3 is connected to the first end of a resistor R52, and the second end of the resistor R52 is connected to the first data output port RO. The second data output port PA2 is connected to the first end of a resistor R28, the second end of the resistor R28 is connected to the working power supply, the second data output port PA2 is connected to the first end of a resistor R53, and the second end of the resistor R53 is connected to the first data input / output DI. The clock port PA1 is connected to the first end of a resistor R29, the second end of the resistor R29 is connected to the working power supply, the clock port PA1 is connected to the first end of a resistor R54, and the second end of the resistor R54 is connected to the second enable port DE. The ground port GND is grounded. The ground port GND is also connected to the first end of a resistor R75, the second end of the resistor R75 is connected to the first end of a resistor R82, the second end of the resistor R82 is connected to the first end of a resistor R76, the second end of the resistor R76 is connected to the power supply port VCC, the power supply port VCC is connected to the first end of a capacitor C55, the second end of the capacitor C55 is grounded, the power supply port VCC is also connected to the working power supply, the first end of the resistor R82 is also connected to the driver output port B, and the second end of the resistor R82 is also connected to the driver output port A. The first end of the resistor R82 is also connected to the first end of a bidirectional transient suppressor D14, and the second end of the bidirectional transient suppressor D14 is connected to the second end of the resistor R82. The first end of the bidirectional transient suppressor D14 is also connected to the first end of a bidirectional transient suppressor D15, the second end of the bidirectional transient suppressor D15 is grounded, the first end of the bidirectional transient suppressor D14 is also connected to the first end of a fuse F3, and the second end of the fuse F3 is connected to the external device. The second end of the bidirectional transient suppressor D14 is connected to the first end of a bidirectional transient suppressor D16, the second end of the bidirectional transient suppressor D16 is grounded, the second end of the bidirectional transient suppressor D14 is connected to the first end of a fuse F4, and the second end of the fuse F4 is connected to the external device.

[0062] Please refer to Figure 16, In one embodiment, the road surface collapse monitoring and alarm device 100 further includes four relay modules 210. The four relay modules 210 are respectively connected to the PB4 - PB7 ports in the STM32F103C8T6 chip. The structures of each of the four relay modules 210 are the same. Taking one of the relay modules 210 as an example, the relay module 210 includes a relay HK4101F. The first end of the electromagnetic coil of the relay HK4101F is connected to the working power supply. The second end of the electromagnetic coil of the relay HK4101F is connected to the first end of a switching transistor Q4. The second end of the switching transistor Q4 is grounded. The control end of the switching transistor Q4 is connected to the first end of a resistor R14. The second end of the resistor R14 serves as the control end S_SET of the relay and is connected to the PB5 port. The first end of the resistor R14 is connected to the first end of a resistor R77. The second end of the resistor R77 is grounded. The first end of the electromagnetic coil of the relay HK4101F is also connected to the output end of a diode D17. The input end of the diode D17 is connected to the second end of the electromagnetic coil of the relay HK4101F. The contacts of the relay HK4101F are used to connect external devices with set functions.

[0063] It should be noted that the external device with a set function can be selected as a display screen to display the data of the central processing unit 140. The external device with a set function can also be selected as an external device with other functions to expand the corresponding functions.

[0064] In one embodiment, the external dimensions of the road surface collapse monitoring and alarm device 10 provided in the present application are 110mm * 6mm * 5mm, the waterproof and dustproof level is IP68, the working temperature is -20°C to 60°C, it can last for 1 year, and the accuracy is 30°, the tilt alarm rate is 100%, and the response delay < 2 seconds, and it can achieve real-time and accurate collapse alarms.

[0065] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A road collapse monitoring and alarm device, characterized in that: include: A tilt sensor is disposed at a target position of a road surface, and is used to detect a tilt angle of the target position of the road surface, and to generate a tilt signal when the tilt angle is detected to be greater than a preset value; A positioning module, used to detect the target position of the tilt sensor generating the tilt signal, and obtain the position data of the collapsed part of the road surface; A network transmission module, the network transmission module is connected to the tilt sensor and the positioning module to obtain the tilt signal and the position data, and to send the position data; A central processing unit, connected to the network transmission module, to obtain the tilt signal; The alarm is connected to the central processor, and the central processor responds to the tilt signal to drive the motor of the alarm to sound an alarm.

2. The road collapse monitoring and alarm device according to claim 1, characterized in that: The network transmission module includes an AIR780E chip, and the AIR780E chip includes an external input interrupt port, and the external input interrupt port is connected to the tilt sensor to obtain the tilt signal.

3. The road collapse monitoring and alarm device according to claim 2, characterized in that: The central processing unit includes an STM32F103C8T6 chip, the STM32F103C8T6 chip includes a second serial port receiving port, a second serial port sending port and an output port, the AIR780E chip also includes a first serial port receiving port and a first serial port sending port, the second serial port receiving port is connected to the first serial port sending port, and the second serial port sending port is connected to the first serial port receiving port to obtain the tilt signal; the output port is connected to the alarm.

4. The road collapse monitoring and alarm device according to claim 3, characterized in that: The positioning module includes an MS34SN3 chip, the MS34SN3 chip includes a first sending port and a first receiving port, the AIR780E chip also includes a first auxiliary serial port receiving port and a first auxiliary serial port sending port, the first sending port is connected to the first auxiliary serial port receiving port, and the first receiving port is connected to the first auxiliary serial port sending port to send the location data to the network transmission module.

5. The road collapse monitoring and alarm device according to claim 3, characterized in that: The alarm includes a CP118 chip, which includes an access port, a first full-bridge output port and a second full-bridge output port. The access port is connected to the output port, and the first full-bridge output port and the second full-bridge output port are used to drive the motor.

6. The road collapse monitoring and alarm device according to claim 1, characterized in that: The road collapse monitoring and alarm device also includes a power module, which includes a charging controller and a lithium battery. The charging controller includes a CN3791 chip. The CN3791 chip includes a first open-drain state output port, a second open-drain state output port, a positive output port and a negative output port. The first open-drain state output port and the second open-drain state output port are used to connect to the solar panel, and the positive output port and the negative output port are connected to the lithium battery.

7. The road collapse monitoring and alarm device according to claim 6, characterized in that: The road collapse monitoring and alarm device also includes a DC conversion module, which includes an MT3608B chip and a FR9206 chip. The MT3608B chip includes a first voltage input port, a first enable port and a first switch port. The first voltage input port is connected to the lithium battery, the first enable port is connected to the central processing unit, and the first switch port outputs the boosted lithium battery voltage; the FR9206 chip includes a second voltage input port and a second switch port. The second voltage input port is connected to the first switch port, and the second switch port outputs the stepped-down lithium battery voltage to serve as the working power supply for the network transmission module and the central processing unit.

8. The road collapse monitoring and alarm device according to claim 3, characterized in that: The road collapse monitoring and alarm device also includes a wireless communication module, which includes a SX1278 chip. The SX1278 chip includes a first reset port, a first chip select port, a first master input port, a first slave input port, a first clock port and an antenna port. The STM32F103C8T6 chip includes a second reset port, a second chip select port, a second master input port, a second slave input port and a second clock port. The first reset port is connected to the second reset port, the first chip select port is connected to the second chip select port, the first master input port is connected to the second master input port, the first slave input port is connected to the second slave input port, the first clock port is connected to the second clock port, and the antenna port is used to connect an antenna for wireless transmission.

9. The road collapse monitoring and alarm device according to claim 3, characterized in that: The road collapse monitoring and alarm device also includes an RS485 communication module, the RS485 communication module includes an SP3485 chip, the SP3485 chip includes a first data output port, a first data input port, a second enable port and a driver output port; the STM32F103C8T6 chip also includes a second data output port, a second data input port and a clock port, the first data output port is connected to the second data input port, the first data input port is connected to the second data output port, the second enable port is connected to the clock port, and the driver output port is used to connect an external device with a set function.

10. The road collapse monitoring and alarm device according to claim 1, characterized in that: The road collapse monitoring and alarm device is arranged on the road surface through ground spikes.

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