CN112964220A - Road surface deformation monitoring devices - Google Patents
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- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The invention discloses a road surface deformation monitoring device, which belongs to the technical field of intelligent traffic equipment, and comprises a shell, and is characterized in that: the casing includes the multilateral waterproof shell of quasi-circular and printing opacity lid, be provided with rechargeable battery in the multilateral waterproof shell of quasi-circular, PCB and solar cell panel, be connected with the radio frequency antenna on the solar cell panel, be provided with gesture detection module on the PCB, radio frequency module, a power supply module, charging module and bluetooth MCU, gesture detection module and radio frequency module are connected with bluetooth MCU electricity respectively, power supply module respectively with gesture detection module, bluetooth MCU and radio frequency module electricity are connected, charging module and rechargeable battery electricity are connected, rechargeable battery is connected with the power supply module electricity, gesture detection module includes triaxial MEMS gyroscope and triaxial MEMS accelerometer. The invention can effectively monitor the pavement settlement and displacement, can monitor the pavement damage condition in all weather, and is beneficial to improving the early warning effect.
Description
Technical Field
The invention relates to the technical field of intelligent traffic equipment, in particular to a pavement deformation monitoring device.
Background
The road surface damage condition is an important index in road condition investigation and evaluation, and is described by the damage type, severity and range. The pavement evenness is in certain relation with the evenness of each level structure of the pavement, namely the evenness effect of each level is accumulated and reflected on the pavement surface, because the pavement foundation and the filling soil have inevitable unevenness in the transverse direction, and the foundation seeps water, the subgrade generates uneven settlement, longitudinal deformation and longitudinal cracks can occur, the top layer of the pavement can generate wavy unevenness, and the highway passing through for years is particularly serious; the road subsides too much, and the crack overlength is too wide, can seriously influence the performance and the life on road surface. The longitudinal deformation of the road surface can exist on both soft soil foundations and non-soft soil foundations, and compared with the longitudinal deformation of soft soil foundation roads, the longitudinal deformation of the soft soil foundation roads is larger than that of the non-soft soil foundation roads, and even if the longitudinal deformation is processed in the design and construction, the longitudinal deformation still cannot be avoided. The settlement and the crack of the road surface can increase the driving resistance and cause the vehicle to generate additional vibration action, the vibration action can cause bumping driving, the driving speed and the safety are influenced, the driving stability and the riding comfort of passengers are ensured, and meanwhile, the vibration can also apply impact force to the road surface, so that the damage of the road surface and automobile parts and the abrasion of tires are aggravated, and the oil consumption of the vehicle is increased; and uneven road surface can accumulate rainwater, and the destruction of road surface is accelerated. The existing road surface damage detection technology at present comprises the following steps: early contact measurement used section formula levelling instrument, like three eight rulers, eight rounds survey flatcar and cross section chi, this kind of method was difficult to realize the automation, relied on artifical observation and record, and efficiency is lower, can't be applied to road network level's road surface roughness measurement, still needs to carry out traffic control. In recent years, a non-contact type measuring technology has been developed, and a typical reactive leveler, such as a bump accumulating gauge, is provided with a sensor and a display on a vehicle, and can sense and accumulate vertical displacement of a suspension system when the vehicle passes through an uneven road surface at a certain speed. The inertial type leveling instrument is additionally provided with a non-contact distance measuring instrument according to the inertial principle, the relative height is generally measured by laser and ultrasonic waves, the measurement is directly carried out on the road profile, an inertial reference instrument is generally an accelerometer and is used for measuring the vertical acceleration of a vehicle body in the advancing process, the vertical displacement is obtained through calculation, and the accurate road profile can be obtained after the distance between the vehicle body and the road surface is corrected through the displacement; in addition, according to a laser pavement section height gauge designed according to the principle of triangulation, an acceleration sensor and an angular velocity sensor are respectively adopted to correct measurement errors formed by vehicle body vibration. The reactive leveler has the advantages that the flatness of the road surface is measured while normal driving is kept, the traffic flow condition of the road is not influenced rapidly, and the reactive leveler is suitable for measuring the flatness of the opened road surface. The disadvantage is that the road profile is not measured directly, but the reaction of the vehicle to changes in the road profile, which may be influenced by the suspension or suspension system of the vehicle itself, is measured, and in addition such instruments have to be measured at a fixed speed, or a calibration model has to be developed. The inertia leveling instrument is suitable for collecting a large amount of pavement flatness data, obviously improves the defects of the section leveling instrument, has the advantages of the measurement principle of the section leveling instrument, directly measures the pavement contour, really corrects the defects of the reaction leveling instrument, has higher accuracy than the reaction leveling instrument, also has the advantages of quick detection and higher price.
Chinese patent documents with publication number CN 209879697U and publication date of 2019, 12 and 31 disclose a road safety early warning system based on the Internet of things, which is characterized in that: the intelligent operation system comprises an early warning safety cone barrel system, an intelligent operation clothes system and a terminal management system which are in wireless connection;
the early warning safety cone barrel system comprises a cone barrel main body, wherein a power supply module and a main control chip are arranged on the cone barrel main body, and the main control chip is connected with a data acquisition module, a wireless communication module and an alarm lamp; the power supply module comprises a voltage stabilizing module, a photovoltaic panel and a lithium ion battery, and the voltage stabilizing module is connected with the photovoltaic panel and the lithium ion battery; the data acquisition module comprises an MPU6050 attitude detection module, an ultrasonic ranging module and an infrared laser sensor; the wireless communication module is a Lora module;
the intelligent work clothes system comprises a work clothes main body, wherein a power supply module and a main control chip are arranged on the work clothes main body, and the main control chip is connected with a communication module, a GPS positioning module, an alarm module, a protection module and a control module; the power supply module comprises a voltage stabilizing module, a thin film photovoltaic panel and a lithium ion battery, and the voltage stabilizing module is connected with the thin film photovoltaic panel and the lithium ion battery; the communication module comprises a Lora module and an NB-IOT module; the protection module is an air bag safety system which is started through automatic control or manual control.
The road safety early warning system based on the internet of things disclosed by the patent document detects the state of the conical barrel by using the attitude sensor, and sends early warning information to workers in time once the inclination angle of the conical barrel changes; when the cone bucket normally placed, the system can cancel the warning automatically, but can not effectively monitor the road surface settlement and displacement, can not monitor in all weather the damaged condition of road surface.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a pavement deformation monitoring device which can effectively monitor pavement settlement and displacement, can monitor pavement damage in all weather and is beneficial to improving early warning effect.
The invention is realized by the following technical scheme:
the utility model provides a road surface deformation monitoring devices, includes the casing, its characterized in that: the casing comprises a quasi-circular multi-edge waterproof casing and a light-transmitting cover connected to the quasi-circular multi-edge waterproof casing, a rechargeable battery, a PCB and a solar panel are arranged in the quasi-circular multi-edge waterproof casing, the rechargeable battery is installed on the inner bottom wall of the quasi-circular multi-edge waterproof casing, the solar panel is fixed on the upper portion of the quasi-circular multi-edge waterproof casing, a radio frequency antenna is connected to the solar panel, the PCB is located between the rechargeable battery and the solar panel, a posture detection module, a radio frequency module, a power supply module, a charging module and a Bluetooth MCU (micro controller unit) communicated with a server are arranged on the PCB, the posture detection module and the radio frequency module are respectively and electrically connected with the Bluetooth MCU, the radio frequency antenna is electrically connected with the radio frequency module, the power supply module is respectively and electrically connected with the posture detection module, the charging module is electrically connected with the rechargeable battery, and the rechargeable battery is electrically connected with the power supply module.
And the attitude detection module is used for monitoring attitude data and quantifying the attitude of the monitoring device.
The Bluetooth MCU is used for realizing Bluetooth communication, setting the state of the attitude detection module, acquiring and processing attitude data monitored by the attitude detection module, and uploading the processed attitude data to the server.
And the radio frequency module is used for receiving the Bluetooth signal and sending the Bluetooth signal containing the processed attitude data.
The attitude detection module comprises a triaxial MEMS gyroscope and a triaxial MEMS accelerometer, the triaxial MEMS gyroscope is used for measuring angular velocity data, and the triaxial MEMS accelerometer is used for measuring acceleration data.
And a plurality of reinforcing ribs are uniformly distributed on the outer wall of the quasi-circular multi-edge waterproof shell along the circumference.
And the inner wall of the light-transmitting cover is fixedly connected with a sealing rubber strip, and the light-transmitting cover is hermetically connected with the quasi-circular multi-edge waterproof shell through the sealing rubber strip.
A plurality of bulges are uniformly distributed on the outer wall of the light-transmitting cover along the circumference of the light-transmitting cover.
The solar cell panel is a solar photovoltaic panel, and the solar photovoltaic panel is located between the PCB and the inner top wall of the light-transmitting cover.
The MCU is a singlechip.
The MEMS refers to a micro-electro-mechanical system.
The PCB refers to a printed circuit board.
The working principle of the invention is as follows:
the method comprises the steps that a server establishes a three-dimensional model of a road surface according to actual road surface data and reference data of a monitoring device, the monitoring device acquires angular velocity data of a three-axis MEMS gyroscope and acceleration data of the three-axis MEMS accelerometer from an attitude detection module at regular time, a Bluetooth MCU performs fusion calculation on the acceleration data and the angular velocity data to obtain attitude data, and then the attitude data are uploaded to the server through a Bluetooth network; because a plurality of groups of monitoring devices are installed on a certain road section through a plurality of sections, after a plurality of groups of attitude data are collected, the collected attitude data are processed, and the server judges the settlement and displacement conditions of each node by comparing the current and historical data of each node, updates the three-dimensional model of each variable node, and visually displays the deformation condition of the current road section.
The beneficial effects of the invention are mainly shown in the following aspects:
the invention relates to a' shell body which comprises a quasi-circular multi-edge waterproof shell and a light-transmitting cover connected on the quasi-circular multi-edge waterproof shell, wherein a rechargeable battery, a PCB and a solar cell panel are arranged in the quasi-circular multi-edge waterproof shell, the rechargeable battery is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell, the solar cell panel is fixed on the upper part of the quasi-circular multi-edge waterproof shell, a radio frequency antenna is connected on the solar cell panel, the PCB is positioned between the rechargeable battery and the solar cell panel, a posture detection module, a radio frequency module, a power supply module, a charging module and a Bluetooth MCU (micro controller unit) communicated with a server are arranged on the PCB, the posture detection module and the radio frequency module are respectively and electrically connected with the Bluetooth MCU, the radio frequency antenna is electrically connected with the radio frequency module, the power supply module is, the rechargeable battery is electrically connected with the power supply module, when the monitoring device is used, the monitoring device performs all-weather monitoring in a low-power-consumption mode by adopting a mechanism of acquiring and uploading attitude data through dormancy and timed awakening, the server judges the settlement and displacement conditions of each node by comparing the current and historical data of each node, updates the three-dimensional model of each variable node, and can visually display the deformation condition of the current road section; by setting a threshold value, if the change exceeds the threshold value, related workers are informed to investigate the situation in real time, so that an accurate early warning effect is achieved. Compared with the prior art, the road surface settlement and displacement monitoring device can effectively monitor the road surface settlement and displacement, can monitor the road surface damage condition in all weather, and is favorable for improving the early warning effect.
The attitude detection module is used for monitoring attitude data, quantifying the attitude of the monitoring device, monitoring the attitude data of the monitoring device in real time and guaranteeing early warning timeliness.
And the Bluetooth MCU is used for realizing Bluetooth communication, setting the state of the attitude detection module, acquiring and processing attitude data monitored by the attitude detection module, uploading the processed attitude data to the server, and coordinating multi-task execution to realize real-time early warning.
And the radio frequency module is used for receiving the Bluetooth signal and sending the Bluetooth signal containing the processed attitude data, so that the noise can be effectively filtered, the signal can be enhanced, and the communication quality can be guaranteed.
The attitude detection module comprises a triaxial MEMS gyroscope and a triaxial MEMS accelerometer, the triaxial MEMS gyroscope is used for measuring angular velocity data, the triaxial MEMS accelerometer is used for measuring acceleration data, and the acceleration sensor cannot independently use the attitude of the measurement system due to temperature drift and mechanical vibration; the gyroscope can provide instant dynamic angle change, and due to the inherent characteristics, temperature and the influence of an integration process, drift errors are generated along with the prolonging of the working time, so that for attitude detection, the gyroscope or the accelerometer can not provide reliable estimation on the attitude; specifically, the two are organically combined, the data of the acceleration sensor is fused and corrected by adopting the angular velocity data measured by the gyroscope, the gravity vector direction at the current moment is calculated by combining the angle value measured by the gyroscope according to the estimated value of the gravity vector direction at the previous moment, and then the weighted average is carried out on the gravity vector direction and the vector direction returned by the accelerometer at the current moment to obtain the optimal value of the current vector direction, so that the current posture of the monitoring device can be accurately judged.
According to the invention, a plurality of reinforcing ribs are uniformly distributed on the outer wall of the quasi-circular multi-edge waterproof shell along the circumference, and the specially adopted quasi-circular multi-edge shell can well dissipate transverse pressure generated by road surface expansion due to temperature change, so that deformation and damage of an internal PCB and a solar cell panel are avoided, and the service time of the monitoring device is prolonged; through setting up the stiffening rib, can consolidate the shell, improve whole monitoring devices's structural strength.
And seventhly, a sealing rubber strip is fixedly connected to the inner wall of the light-transmitting cover, and the light-transmitting cover is hermetically connected with the quasi-circular polygonal waterproof shell through the sealing rubber strip, so that rainwater can be effectively prevented from permeating into the monitoring device, and the operation reliability of the monitoring device is guaranteed.
According to the invention, the plurality of bulges are uniformly distributed on the outer wall of the light-transmitting cover along the circumference of the light-transmitting cover, so that the surface friction force of the light-transmitting cover can be increased, and the structural strength of the light-transmitting cover can be enhanced.
The solar cell panel is a solar photovoltaic panel, the solar photovoltaic panel is located between the PCB and the inner top wall of the light-transmitting cover, solar energy can be converted into electric energy, electric quantity is supplemented to the monitoring device, working stability of the monitoring device is guaranteed, related power supply lines are not required to be laid, construction amount is effectively reduced, construction difficulty is reduced, the installation direction is not required, the solar cell panel can be oriented randomly, and the solar photovoltaic panel is suitable for different regions.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the PCB structure of the present invention;
the labels in the figure are: 1. polygonal waterproof shell of class circular shape, 2, printing opacity lid, 3, rechargeable battery, 4, PCB, 5, solar cell panel, 6, radio frequency antenna, 7, gesture detection module, 8, radio frequency module, 9, power module, 10, the module that charges, 11, bluetooth MCU, 12, stiffening rib, 13, arch.
Detailed Description
Example 1
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
The embodiment is the most basic implementation mode, the casing comprises a quasi-circular multi-edge waterproof casing 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof casing 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof casing 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof casing 1, the solar panel 5 is fixed on the upper portion of the quasi-circular multi-edge waterproof casing 1, a radio-frequency antenna 6 is connected to the solar panel 5, the PCB4 is located between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio-frequency module 8, a power supply module 9, a charging module 10 and a Bluetooth MCU11 communicated with a server are arranged on the PCB4, the posture detection module 7 and the radio-frequency module 8 are respectively electrically connected with the Bluetooth MCU11, the radio-frequency antenna 6 is electrically connected, The Bluetooth MCU11 is electrically connected with the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9. when the intelligent monitoring system is used, the monitoring device performs all-weather monitoring in a low-power-consumption mode by adopting a mechanism of dormancy and timed awakening to acquire and upload attitude data, and the server judges the settlement and displacement conditions of each node by comparing the current and historical data of each node, updates the three-dimensional model of each variable node, and can visually display the deformation condition of the current road section; by setting a threshold value, if the change exceeds the threshold value, related workers are informed to investigate the situation in real time, so that an accurate early warning effect is achieved. Compared with the prior art, the road surface settlement and displacement monitoring device can effectively monitor the road surface settlement and displacement, can monitor the road surface damage condition in all weather, and is favorable for improving the early warning effect.
Example 2
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
And the attitude detection module 7 is used for monitoring attitude data and quantifying the attitude of the monitoring device.
The present embodiment is a preferred embodiment, and the attitude detection module 7 is configured to monitor attitude data, quantify the attitude of the monitoring device, monitor the attitude data of the monitoring device in real time, and ensure early warning timeliness.
Example 3
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
And the attitude detection module 7 is used for monitoring attitude data and quantifying the attitude of the monitoring device.
And the Bluetooth MCU11 is used for realizing Bluetooth communication, setting the state of the attitude detection module 7, acquiring and processing attitude data monitored by the attitude detection module 7, and uploading the processed attitude data to the server.
In this embodiment, which is another preferred embodiment, the bluetooth MCU11 is configured to implement bluetooth communication, set the state of the attitude detection module 7, acquire and process the attitude data monitored by the attitude detection module 7, and upload the processed attitude data to the server, so as to coordinate multitask execution to implement real-time warning.
Example 4
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
And the attitude detection module 7 is used for monitoring attitude data and quantifying the attitude of the monitoring device.
And the Bluetooth MCU11 is used for realizing Bluetooth communication, setting the state of the attitude detection module 7, acquiring and processing attitude data monitored by the attitude detection module 7, and uploading the processed attitude data to the server.
And the radio frequency module 8 is used for receiving the Bluetooth signal and sending the Bluetooth signal containing the processed attitude data.
In another preferred embodiment, the rf module 8 is configured to receive a bluetooth signal and send a bluetooth signal containing processed attitude data, so as to effectively filter noise, enhance signal, and ensure communication quality.
Example 5
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
And the attitude detection module 7 is used for monitoring attitude data and quantifying the attitude of the monitoring device.
And the Bluetooth MCU11 is used for realizing Bluetooth communication, setting the state of the attitude detection module 7, acquiring and processing attitude data monitored by the attitude detection module 7, and uploading the processed attitude data to the server.
And the radio frequency module 8 is used for receiving the Bluetooth signal and sending the Bluetooth signal containing the processed attitude data.
The attitude detection module 7 comprises a triaxial MEMS gyroscope and a triaxial MEMS accelerometer, wherein the triaxial MEMS gyroscope is used for measuring angular velocity data, and the triaxial MEMS accelerometer is used for measuring acceleration data.
In this embodiment, the attitude detection module 7 includes a three-axis MEMS gyroscope and a three-axis MEMS accelerometer, where the three-axis MEMS gyroscope is used to measure angular velocity data, and the three-axis MEMS accelerometer is used to measure acceleration data, and the acceleration sensor cannot independently use the attitude of the measurement system due to temperature drift and mechanical vibration of the acceleration sensor; the gyroscope can provide instant dynamic angle change, and due to the inherent characteristics, temperature and the influence of an integration process, drift errors are generated along with the prolonging of the working time, so that for attitude detection, the gyroscope or the accelerometer can not provide reliable estimation on the attitude; specifically, the two are organically combined, the data of the acceleration sensor is fused and corrected by adopting the angular velocity data measured by the gyroscope, the gravity vector direction at the current moment is calculated by combining the angle value measured by the gyroscope according to the estimated value of the gravity vector direction at the previous moment, and then the weighted average is carried out on the gravity vector direction and the vector direction returned by the accelerometer at the current moment to obtain the optimal value of the current vector direction, so that the current posture of the monitoring device can be accurately judged.
Example 6
Referring to fig. 1 and 2, a road surface deformation monitoring device comprises a shell, the shell comprises a quasi-circular multi-edge waterproof shell 1 and a light-transmitting cover 2 connected to the quasi-circular multi-edge waterproof shell 1, a rechargeable battery 3, a PCB4 and a solar panel 5 are arranged in the quasi-circular multi-edge waterproof shell 1, the rechargeable battery 3 is arranged on the inner bottom wall of the quasi-circular multi-edge waterproof shell 1, the solar panel 5 is fixed on the upper part of the quasi-circular multi-edge waterproof shell 1, a radio frequency antenna 6 is connected to the solar panel 5, the PCB4 is positioned between the rechargeable battery 3 and the solar panel 5, a posture detection module 7, a radio frequency module 8, a power supply module 9, a charging module 10 and a bluetooth MCU11 communicating with a server are arranged on a PCB4, the posture detection module 7 and the radio frequency module 8 are respectively and electrically connected with the bluetooth MCU11, the radio frequency antenna 6 is electrically connected, the power supply module 9 is respectively electrically connected with the gesture detection module 7, the Bluetooth MCU11 and the radio frequency module 8, the solar cell panel 5 is electrically connected with the charging module 10, the charging module 10 is electrically connected with the rechargeable battery 3, and the rechargeable battery 3 is electrically connected with the power supply module 9.
And the attitude detection module 7 is used for monitoring attitude data and quantifying the attitude of the monitoring device.
And the Bluetooth MCU11 is used for realizing Bluetooth communication, setting the state of the attitude detection module 7, acquiring and processing attitude data monitored by the attitude detection module 7, and uploading the processed attitude data to the server.
And the radio frequency module 8 is used for receiving the Bluetooth signal and sending the Bluetooth signal containing the processed attitude data.
The attitude detection module 7 comprises a triaxial MEMS gyroscope and a triaxial MEMS accelerometer, wherein the triaxial MEMS gyroscope is used for measuring angular velocity data, and the triaxial MEMS accelerometer is used for measuring acceleration data.
And a plurality of reinforcing ribs 12 are uniformly distributed on the outer wall of the quasi-circular multi-edge waterproof shell 1 along the circumference.
And the inner wall of the light-transmitting cover 2 is fixedly connected with a sealing rubber strip, and the light-transmitting cover 2 is hermetically connected with the quasi-circular multi-edge waterproof shell 1 through the sealing rubber strip.
A plurality of bulges 13 are uniformly distributed on the outer wall of the light-transmitting cover 2 along the circumference of the light-transmitting cover 2.
The solar cell panel 5 is a solar photovoltaic panel, and the solar photovoltaic panel is positioned between the PCB4 and the inner top wall of the light-transmitting cover 2.
The embodiment is the best implementation mode, a plurality of reinforcing ribs 12 are uniformly distributed on the outer wall of the quasi-circular multi-edge waterproof shell 1 along the circumference, and the special quasi-circular multi-edge shell can well dissipate transverse pressure generated by road surface expansion due to temperature change, so that deformation and damage of the inner PCB4 and the solar cell panel 5 are avoided, and the service time of the monitoring device is prolonged; through setting up stiffening rib 12, can consolidate the shell, improve whole monitoring devices's structural strength.
Fixedly connected with joint strip on the inner wall of printing opacity lid 2, printing opacity lid 2 passes through joint strip and 1 sealing connection of class circular multilateral waterproof housing, can prevent effectively that inside the rainwater infiltration monitoring devices, guarantee monitoring devices operational reliability.
A plurality of bulges 13 are uniformly distributed on the outer wall of the light-transmitting cover 2 along the circumference of the light-transmitting cover 2, so that the surface friction of the light-transmitting cover 2 can be increased, and the structural strength of the light-transmitting cover 2 can be enhanced.
Claims (8)
1. The utility model provides a road surface deformation monitoring devices, includes the casing, its characterized in that: the shell comprises a quasi-circular multi-edge waterproof shell (1) and a light-transmitting cover (2) connected onto the quasi-circular multi-edge waterproof shell (1), wherein a rechargeable battery (3), a PCB (4) and a solar panel (5) are arranged in the quasi-circular multi-edge waterproof shell (1), the rechargeable battery (3) is installed on the inner bottom wall of the quasi-circular multi-edge waterproof shell (1), the solar panel (5) is fixed on the upper part of the quasi-circular multi-edge waterproof shell (1), a radio frequency antenna (6) is connected onto the solar panel (5), the PCB (4) is positioned between the rechargeable battery (3) and the solar panel (5), a gesture detection module (7), a radio frequency module (8), a power supply module (9), a charging module (10) and a Bluetooth MCU (11) communicated with a server are arranged on the PCB (4), and the gesture detection module (7) and the radio frequency module (8) are respectively and electrically connected with the Bluetooth MCU (11), radio frequency antenna (6) are connected with radio frequency module (8) electricity, power module (9) are connected with gesture detection module (7), bluetooth MCU (11) and radio frequency module (8) electricity respectively, solar cell panel (5) are connected with charging module (10) electricity, and charging module (10) are connected with rechargeable battery (3) electricity, and rechargeable battery (3) are connected with power module (9) electricity, gesture detection module (7) include triaxial MEMS gyroscope and triaxial MEMS accelerometer, and triaxial MEMS gyroscope is used for measuring angular velocity data, and triaxial MEMS accelerometer is used for measuring acceleration data.
2. A road surface deformation monitoring device according to claim 1, characterized in that: and the attitude detection module (7) is used for monitoring attitude data and quantifying the attitude of the monitoring device.
3. A road surface deformation monitoring device according to claim 1, characterized in that: and the Bluetooth MCU (11) is used for realizing Bluetooth communication, setting the state of the attitude detection module (7), acquiring and processing attitude data monitored by the attitude detection module (7), and uploading the processed attitude data to the server.
4. A road surface deformation monitoring device according to claim 1, characterized in that: and the radio frequency module (8) is used for receiving Bluetooth signals and sending Bluetooth signals containing the processed attitude data.
5. A road surface deformation monitoring device according to claim 1, characterized in that: and a plurality of reinforcing ribs (12) are uniformly distributed on the outer wall of the quasi-circular multi-edge waterproof shell (1) along the circumference.
6. A road surface deformation monitoring device according to claim 1, characterized in that: and the inner wall of the light-transmitting cover (2) is fixedly connected with a sealing rubber strip, and the light-transmitting cover (2) is hermetically connected with the quasi-circular multi-edge waterproof shell (1) through the sealing rubber strip.
7. A road surface deformation monitoring device according to claim 1, characterized in that: a plurality of bulges (13) are uniformly distributed on the outer wall of the light-transmitting cover (2) along the circumference of the light-transmitting cover (2).
8. A road surface deformation monitoring device according to claim 1, characterized in that: the solar cell panel (5) is a solar photovoltaic panel, and the solar photovoltaic panel is located between the PCB (4) and the inner top wall of the light-transmitting cover (2).
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| CN115218860A (en) * | 2022-09-20 | 2022-10-21 | 四川高速公路建设开发集团有限公司 | Road deformation prediction method based on Mems acceleration sensor |
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