Signboard shielding detection device based on laser ranging and traffic signboard

Abstract

The utility model provides a signboard shielding detection device based on laser ranging. The signboard shielding detection device comprises a main control bottom plate, a power supply module and a laser ranging module, the power supply module is arranged on the main control bottom plate and is electrically connected with the main control bottom plate; the laser ranging module is mounted in the middle above the power supply through a circular truncated cone, is electrically connected with the power supply and is in control connection with the main control bottom plate; and the main control bottom plate is detachably arranged on the traffic sign board through a buckle. According to the utility model, effective detection of obstructions in front of the traffic sign board can be realized, traffic delay can be reduced, traffic operation efficiency can be improved, traffic accidents can be reduced, construction and development of a smart city traffic system can be promoted, manpower cost can be reduced, road facility maintenance efficiency can be improved, and the traffic sign board can be widely applied. The method is of great significance to traffic management, traffic safety and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of road traffic safety, and in particular to a signboard shielding detection device based on laser ranging and a traffic signboard. Background Art

[0002] For the sake of road traffic safety, trees or other plants planted on both sides of the road and on the isolation belt, billboards, pipelines, etc. should be kept at a necessary distance from traffic facilities, and should not block street lights, traffic lights, traffic signs, or hinder safe sight distance and should not affect traffic. Traffic signs are a very important part of the road traffic system. They provide drivers with necessary traffic information and play an important role in the smooth flow of traffic and the effective implementation of traffic management. Most traffic signs are set on the side of the road. As roadside trees grow over time, increase in height and volume, and block traffic signs, manual inspection and pruning are often required. However, tree growth is difficult to predict, and the existing detection method for blocked traffic signs is still at the stage of manual inspection. This requires a lot of manpower and low efficiency, and the situation where traffic signs are blocked by obstacles may not be handled in a timely manner.

[0003] At the same time, most cities in my country have not fully considered the impact of the dynamic growth of street trees on traffic signs when planning roads. There is an inconsistency between the location and method of traffic signs and the planting, growth, management, detection, and pruning of street trees, which can easily cause street trees to block signs, affecting drivers' judgment of important road information and causing a series of traffic accidents. At present, the research on this issue is mostly problem analysis, generally solving the problem of street trees blocking traffic signs from the reasonable pruning of street trees. There is still a lack of in-depth research on how to intelligently and automatically detect street trees blocking traffic signs and subsequent self-testing, self-testing, and automatic adjustment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a signboard shielding detection device and a traffic signboard based on laser ranging, so as to effectively realize the shielding detection of the traffic signboard to avoid traffic accidents.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A signboard occlusion detection device based on laser ranging includes a main control base plate, a power module and a laser ranging module;

[0007] The power module is installed on the main control base plate and is electrically connected to the main control base plate;

[0008] The laser distance measuring module is installed in the middle position above the power supply through a round table, and is electrically connected to the power supply and controlled by the main control baseboard;

[0009] The main control base plate is detachably mounted on the traffic sign board through buckles.

[0010] Further, the laser ranging module is a pulsed ranging sensor;

[0011] The main control board is a microcontroller board based on ATmega328P.

[0012] Furthermore, a Beidou positioning module is installed above the power supply and around the truncated table, and the Beidou positioning module is electrically connected to the power supply and is control-connected to the main control baseboard;

[0013] The top of the Beidou positioning module is lower than the top of the cone.

[0014] Furthermore, the Beidou positioning module is a full-constellation positioning and navigation module based on a GNSS SOC single chip.

[0015] Furthermore, an Internet of Things module is installed above the power supply and around the truncated table, and the Internet of Things module is electrically connected to the power supply and is control-connected to the main control baseboard;

[0016] The top of the IoT module is lower than the top of the frustum.

[0017] Furthermore, the Internet of Things module is a Wi-Fi serial port module with a model number of ESP-01S.

[0018] Furthermore, a voltage stabilizing circuit module and a solar panel are installed above the power supply and around the truncated table, and the solar panel is electrically connected to the power supply through the voltage stabilizing circuit module;

[0019] The tops of the solar panel and the voltage stabilizing circuit module are both lower than the top of the frustum.

[0020] Furthermore, the solar panel is a single crystal 1.6W-5.5V specification solar panel;

[0021] The power source is a high temperature resistant 2000 mAh lithium battery with model number 103450.

[0022] Furthermore, the main control base plate is a disc structure, and a first preset number of card holes are evenly spaced along the circumference of the disc near the edge;

[0023] The main control base plate can be detachably installed in front of the traffic sign by snapping into the card hole.

[0024] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0025] A traffic sign, comprising a sign body and the above-mentioned sign shielding detection device based on laser ranging;

[0026] The signboard shielding detection device comprises at least two or more signboard shielding detection devices which are evenly installed along the edge of the signboard body toward the front of the signboard body.

[0027] The beneficial effects of the utility model are as follows: a signboard obstruction detection device and a traffic sign based on laser ranging are provided, wherein a main control base plate, a power module and a laser ranging module are sequentially installed from bottom to top to form a signboard obstruction detection device, and then a plurality of detection devices are detachably installed in front of the traffic sign through buckles to realize the function of detecting the obstruction in front based on laser ranging, so that the laser ranging module can perform laser ranging and transmit the data to the main control base plate for data processing, thereby realizing effective detection of the obstruction in front of the traffic sign; and the setting of the round table also effectively avoids the interference of other components on the detection device with the ranging of the laser ranging module; at the same time, the detection The power supply is integrated on the measuring device to power the laser ranging module and the main control baseboard, ensuring the long-term operation of the detection device. It greatly improves the efficiency while improving the detection accuracy. It can timely transmit the location information of the signboards blocked by the roadside trees or the information of the faulty system to the background terminal of the road maintenance personnel, so as to notify the relevant personnel to complete the accurate and timely pruning of the roadside trees and system maintenance, improve the efficiency of road facility maintenance, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the efficiency of road facility maintenance. It is of great significance to traffic management and traffic safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a signboard occlusion detection device based on laser ranging according to an embodiment of the utility model;

[0029] Figure 2 A top view of a signboard occlusion detection device based on laser ranging according to an embodiment of the utility model;

[0030] Figure 3 It is a side view of a signboard occlusion detection device based on laser ranging according to an embodiment of the utility model;

[0031] Figure 4 This is a schematic structural diagram of a buckle used in a signboard shielding detection device based on laser ranging in an embodiment of the utility model;

[0032] Figure 5 This is a principle block diagram of a signboard occlusion detection device based on laser ranging according to an embodiment of the utility model;

[0033] Figure 6 The present invention is a schematic diagram of the installation position of a signboard obstruction detection device on a traffic signboard according to an embodiment of the present utility model.

[0034] Description of labels:

[0035] 1. Laser ranging module; 11. Round table; 2. Voltage stabilizing circuit module; 3. Beidou positioning module; 4. Internet of Things module; 5. Solar panel; 6. Power supply; 7. Main control base plate; 8. Card hole; 9. Buckle. DETAILED DESCRIPTION

[0036] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0037] Please refer to Figures 1 to 5 , a signboard occlusion detection device based on laser ranging, including a main control baseboard, a power module and a laser ranging module;

[0038] The power module is installed on the main control base plate and is electrically connected to the main control base plate;

[0039] The laser distance measuring module is installed in the middle position above the power supply through a round table, and is electrically connected to the power supply and controlled by the main control baseboard;

[0040] The main control base plate is detachably mounted on the traffic sign board through buckles.

[0041] From the above description, it can be seen that the beneficial effects of the utility model are: providing a signboard obstruction detection device and a traffic sign based on laser ranging, by sequentially assembling a main control base plate, a power module and a laser ranging module from bottom to top to form a signboard obstruction detection device, and then detachably installing the detection device in front of the traffic sign through a buckle to realize the function of detecting the obstruction in front based on laser ranging, that is, the laser ranging module can perform laser ranging and transmit the data to the main control base plate for data processing to realize the effective detection of the obstruction in front of the traffic sign; and the setting of the frustum also effectively avoids the interference of other components on the detection device with the ranging of the laser ranging module; at the same time A power supply is integrated on the detection device to power the laser ranging module and the main control baseboard, ensuring the long-term operation of the detection device. It greatly improves the efficiency while improving the detection accuracy. It can timely transmit the location information of the signboards blocked by the roadside trees or the information of the faulty system to the background terminal of the road maintenance personnel, so as to notify the relevant personnel to complete the accurate and timely pruning of the roadside trees and system maintenance, improve the efficiency of road facility maintenance, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the efficiency of road facility maintenance. It is of great significance to traffic management and traffic safety.

[0042] Further, the laser ranging module is a pulsed ranging sensor;

[0043] The main control board is a microcontroller board based on ATmega328P.

[0044] From the above description, it can be seen that the microcontroller board based on ATmega328P has the advantages of complete modules, simple control, mature programming and convenient power supply, etc. It can be well competent for the task of processing the data collected by laser ranging. The microcontroller board also has the advantages of replaceable chips and 1kb EEPROM, which will not be erased when the power is off, and has a barrel plug battery connector, which is suitable for use with a standard 9V battery. At the same time, the laser ranging module adopts a pulsed ranging sensor, which can obtain the distance according to the time difference between the time of receiving the return light and the time of emitting the infrared light after the infrared light is irradiated to the object, and directly output the distance value to the main control board for data processing, effectively realizing high-precision ranging.

[0045] Furthermore, a Beidou positioning module is installed above the power supply and around the truncated table, and the Beidou positioning module is electrically connected to the power supply and is control-connected to the main control baseboard;

[0046] The top of the Beidou positioning module is lower than the top of the cone.

[0047] From the above description, it can be seen that the Beidou module is mainly used to monitor the latitude and longitude positioning, altitude and other information of the laser ranging device, so that when the laser ranging module measures and finds that there is an obstruction in front of the traffic sign, the location of the traffic sign can be obtained in time, so as to notify relevant personnel for timely processing and further ensure traffic safety.

[0048] Furthermore, the Beidou positioning module is a full-constellation positioning and navigation module based on a GNSS SOC single chip.

[0049] From the above description, it can be seen that the full-constellation positioning and navigation module based on the GNSS SOC single chip supports multiple satellite navigation systems. It is a six-in-one multi-mode satellite signal navigation and positioning chip. It contains 32 tracking channels that can simultaneously receive GNSS signals from six satellite navigation systems, and realize joint positioning, navigation and timing. It has the advantages of high sensitivity, low power consumption and low cost.

[0050] Furthermore, an Internet of Things module is installed above the power supply and around the truncated table, and the Internet of Things module is electrically connected to the power supply and is control-connected to the main control baseboard;

[0051] The top of the IoT module is lower than the top of the frustum.

[0052] From the above description, it can be seen that the Internet of Things module can be used for communication to send the measurement data of the laser ranging module, the judgment results of the main control baseboard, and the position and elevation information of the Beidou positioning module to the terminal of relevant personnel so as to promptly notify the relevant personnel for processing.

[0053] Furthermore, the Internet of Things module is a Wi-Fi serial port module with a model number of ESP-01S.

[0054] From the above description, we can know that the core processor of the Wi-Fi serial port module of ESP-01S is ESP8266. This module is a high-performance Wi-Fi serial port module. The internal integrated MCU can realize serial port communication with the single-chip microcomputer. Connect the ESP-01S module to the main control baseboard, burn the program after the connection is successful, configure the penetration code, and then connect to the Internet of Things server to upload the data processed by the single-chip microcomputer to the server.

[0055] Furthermore, a voltage stabilizing circuit module and a solar panel are installed above the power supply and around the truncated table, and the solar panel is electrically connected to the power supply through the voltage stabilizing circuit module;

[0056] The tops of the solar panel and the voltage stabilizing circuit module are both lower than the top of the frustum.

[0057] From the above description, it can be seen that the solar panel is used to supply power to ensure the sustainable operation of the detection device.

[0058] Furthermore, the solar panel is a single crystal 1.6W-5.5V specification solar panel;

[0059] The power source is a high temperature resistant 2000 mAh lithium battery model 103450.

[0060] From the above description, it can be seen that the solar panel adopts single crystal 1.6W-5.5V specification, and can output 5V1.4A electricity to charge the power supply when connected to the voltage stabilizing circuit. The power supply part adopts model 103450 high temperature resistant 2000mAh lithium battery, which can withstand 80° high temperature, effectively improving the service life of the detection device.

[0061] Furthermore, the main control base plate is a disc structure, and a first preset number of card holes are evenly spaced along the circumference of the disc near the edge;

[0062] The main control base plate can be detachably installed in front of the traffic sign by snapping into the card hole.

[0063] From the above description, it can be seen that a plurality of card holes are evenly spaced along the circumference near the edge of the main control base plate, so as to achieve stable installation of the entire detection device on the traffic sign, and prevent the detection device from falling and causing errors in the measurement data of the laser ranging module and then inaccurate judgment of the obstruction.

[0064] Please refer to Figure 6 , a traffic sign, comprising a sign body and the above-mentioned sign occlusion detection device based on laser ranging;

[0065] The signboard shielding detection device comprises at least two or more signboard shielding detection devices which are evenly installed along the edge of the signboard body toward the front of the signboard body.

[0066] From the above description, it can be seen that the beneficial effects of the utility model are: based on the same technical concept, a traffic sign is provided, and the above-mentioned sign occlusion detection device based on laser ranging is adopted. By installing multiple sign occlusion detection devices evenly spaced along the edge of the traffic sign and facing the front of the traffic, effective detection of obstructions in front of the traffic sign can be achieved, and the position information of the sign blocked by the roadside trees or the information of the faulty system can be transmitted to the background terminal of the road maintenance personnel in time, so as to notify the relevant personnel to complete accurate and timely roadside tree pruning and system maintenance, improve the efficiency of road facility maintenance, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the efficiency of road facility maintenance, which is of great significance to traffic management and traffic safety.

[0067] The utility model provides a signboard occlusion detection device based on laser ranging and a traffic signboard, which are mainly used in the scene of detecting occlusion objects on road traffic signs. The following is a specific description in combination with specific embodiments:

[0068] Please refer to Figure 1 and Figure 5 , Embodiment 1 of the present utility model is:

[0069] A signboard occlusion detection device based on laser ranging, such as Figure 1 As shown, it includes a main control baseboard 7, a power supply 6 module and a laser ranging module 1.

[0070] Among them, the power supply 6 module is installed on the main control base plate 7 and is electrically connected to the main control base plate 7; the laser ranging module 1 is installed in the middle position above the power supply 6 through a truncated table 11, and is electrically connected to the power supply 6 and control-connected to the main control base plate 7; the main control base plate 7 can be detachably mounted on the traffic sign through the buckle 9.

[0071] That is, in this embodiment, the main control base plate 7, the power supply 6 module and the laser ranging module 1 are sequentially installed from bottom to top to form a signboard blocking detection device, and then the detection device is detachably installed in front of the traffic sign through the buckle 9 to realize the function of detecting the front blocking object based on laser ranging, that is, the laser ranging module 1 performs laser ranging and transmits the measurement data to the main control base plate 7 for judgment, thereby realizing effective detection of the blocking object in front of the traffic sign; and the setting of the round table 11 also effectively avoids the interference of other components on the detection device with the ranging of the laser ranging module 1; at the same time, the power supply 6 is integrated on the detection device to perform laser ranging. Module 1 and the main control baseboard 7 are powered to ensure the long-term operation of the detection device, which greatly improves the efficiency while improving the detection accuracy. It can timely transmit the location information of the signboard blocked by the roadside trees or the information of the faulty system to the background terminal of the road maintenance personnel, so as to notify the relevant personnel to complete the accurate and timely pruning of the roadside trees and system maintenance, improve the efficiency of road facility maintenance, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the efficiency of road facility maintenance. It is of great significance to traffic management and traffic safety.

[0072] In this embodiment, the main control baseboard 7 uses a microcontroller board based on ATmega328P. The specific model can refer to the Arduino UNO r3 development board, which has the advantages of complete modules, simple control, mature programming and convenient power supply, and can be well qualified for the task of judging the obstruction of the data collected by the laser ranging. The microcontroller board also has the advantages of replaceable chips and 1kb EEPROM, which will not be erased when the power is off, and has a barrel plug battery connector, which is suitable for use with a standard 9V battery. Figure 5As shown, the distance can be measured by connecting the point pin with the laser ranging module 1; the laser ranging module 1 adopts a pulse ranging sensor, specifically a pulse ranging sensor of model 1HSLD04-150M (acg220114-100Hz), which is a high-precision ranging sensor designed based on the time-of-flight ranging (TOF) principle, measuring distance: 0.1∽150m, measuring accuracy: ±10cm (<50m) / ±1% (>50m), laser type: 905nm, Class I, module size: 43*35*21mm, average power: ≤0.72w, measurement frequency: 100Hz, and the sensor module has low power consumption, small size, and easy installation. When integrated above the truncated table 11, it irradiates the object with infrared light and obtains the distance according to the time difference between the received return light time and the infrared light emission time, and directly outputs the distance value to the main control baseboard 7. Through Arduino development, the serial port data is read to obtain the specific measurement value, which is used as the basic data for further judgment and processing, effectively improving the efficiency and accuracy of detecting the obstruction in front of the sign.

[0073] Please refer to Figures 1 to 5 , Embodiment 2 of the present utility model is:

[0074] A signboard occlusion detection device and a traffic signboard based on laser ranging, based on the above embodiment 1, in this embodiment, as Figure 1 As shown, a Beidou positioning module 3 is also installed above the power supply 6 and around the truncated table 11 , and the Beidou positioning module 3 is electrically connected to the power supply 6 and control-connected to the main control base plate 7 .

[0075] At the same time Figure 3 As shown, it can be seen that the top of the Beidou positioning module 3 is lower than the top of the truncated cone 11, which can avoid interference with the ranging of the laser ranging module 1, and the Beidou positioning module 3 adopts a full-constellation positioning and navigation module based on a GNSS SOC single chip. This model of module belongs to the ATGM336H-5N series. The ATGM336H-5N series module is a general term for small-size, high-performance BDS / GNSS full-constellation positioning and navigation modules. This series of modules supports a variety of satellite navigation systems. It is a true six-in-one multi-mode satellite signal navigation and positioning chip. It contains 32 tracking channels that can simultaneously receive GNSS signals from six satellite navigation systems, and realize joint positioning, navigation and timing. It has the advantages of high sensitivity, low power consumption, and low cost. The Beidou module is mainly used to monitor the longitude and latitude positioning, altitude and other information of a single laser ranging device. It receives satellite signals through a ceramic antenna and uses UART as the main output channel to output in accordance with the NMEA0183 protocol format. Figure 5As shown, in this embodiment, the ATGM336H-5N series module is connected to the Arduino UNO r3 development board, wherein the Beidou module 5V pin can be connected to the Arduino UNO r3 development board 5V pin, the RX pin is connected to TXD, the TX pin is connected to RXD, the GND pin is connected to GND, and the PPS pin is connected to IO. After the connection is completed, the corresponding program debugging is input to return the satellite data received by the ATGM366H-5N series module, and the "CASIC Multi-mode Satellite Navigation Receiver Protocol Specification" is compared to obtain the required location information and altitude information. After that, the data is screened through the single-chip microcomputer chip of the Arduino UNO r3 development board, and the ESP8266 chip is linked to pass the required information to the background terminal.

[0076] For example Figure 1 As shown, an Internet of Things module 4 is also installed above the power supply 6 and around the truncated table 11, and the Internet of Things module 4 is electrically connected to the power supply 6 and is controlled and connected to the main control base plate 7; and similarly, Figure 3 As shown, the top of the Internet of Things module 4 is lower than the top of the frustum 11 , also to avoid interference with the ranging of the laser ranging module 1 .

[0077] At the same time, in this embodiment, the Internet of Things module 4 adopts a Wi-Fi serial port module of model ESP-01S, whose core processor is ESP8266. This module is a high-performance Wi-Fi serial port module with an internal integrated MCU that can realize serial port communication with a single-chip microcomputer, such as Figure 5 As shown, the ESP-01S module can be connected to the Arduino UNO r3 development board, wherein the ESP8266 processor TX pin is connected to the Arduino UNO r3 development board D2 pin, the RX pin is connected to D3, the VCC pin, the CH_PD pin are connected to the 3.3V pin, and the GND pin is connected to the GND pin. After the connection is successful, the program is burned, the penetration code is configured, and then the Internet of Things server is connected, and the data processed by the single-chip microcomputer is uploaded to the server, so as to realize the sending of the measurement data of the laser ranging module 1, the judgment result of the main control base plate 7, and the position and elevation information of the Beidou positioning module 3 to the server terminal of the relevant personnel so as to promptly notify the relevant personnel for processing.

[0078] For example Figure 1 As shown, a voltage stabilizing circuit module 2 and a solar panel 5 are installed above the power supply 6 and around the truncated table 11, and the solar panel 5 is electrically connected to the power supply 6 through the voltage stabilizing circuit module 2 to supply power to the power supply 6 to ensure the sustainable operation of the detection device; and as shown in the same Figure 3 As shown, the tops of the solar panel 5 and the voltage stabilizing circuit module 2 are both lower than the top of the frustum 11 , also to avoid interference with the ranging of the laser ranging module 1 .

[0079] At the same time, in this embodiment, the solar panel 5 is a single crystal 1.6W-5.5V specification solar power generation panel, the voltage stabilizing circuit module 2 has a boost circuit, which can boost the electric energy output by the solar panel 5 to output 5V 1.4A for charging a 3.7V lithium battery, and the power supply 6 adopts a high-temperature resistant 2000 mAh lithium battery with model 103450, which can withstand 80° high temperature, has an input voltage of 4.2V-5V, and an output voltage of 3.7V. Similarly, the voltage stabilizing circuit module 2 outputs a 5V DC voltage through its boost circuit to power the Arduino UNO r3 development board and the laser ranging module 1, thereby effectively improving the service life of the overall sign detection device.

[0080] In addition, if Figure 2 As shown, the main control base plate 7 is a disc structure, and a first preset number of card holes 8 are evenly spaced along the circumference of the disc near the edge; in this embodiment, the main control base plate 7 can be Figure 4 The buckle 9 shown is snapped into the card hole 8 in a detachable manner and installed in front of the traffic sign, that is, the overall sign detection device can be stably installed on the traffic sign by snapping the buckle 9 into the card hole 8, thereby preventing the detection device from falling and causing errors in the measurement data of the laser ranging module 1 and thus inaccurate judgment of the obstruction.

[0081] Please refer to Figure 6 , Embodiment 3 of the present utility model is:

[0082] A traffic sign, such as Figure 6 As shown, it includes a sign body and the above-mentioned sign obstruction detection device based on laser ranging, wherein the sign obstruction detection device is at least two and multiple sign obstruction detection devices are evenly installed along the edge of the sign body toward the front of the sign body.

[0083] The number of sign shielding detection devices can be set according to the shape of the traffic sign, such as Figure 6 As shown in the present embodiment, the traffic sign is triangular, and a sign shielding detection device can be respectively arranged at each triangular position, and the detection results of the three sign shielding detection devices can be combined to achieve more accurate detection of shielding objects in front of the sign.

[0084] That is, in this embodiment, based on the same technical concept, a traffic sign is provided, and the above-mentioned sign occlusion detection device based on laser ranging is adopted. By evenly installing multiple sign occlusion detection devices along the edge of the traffic sign and facing the front of the traffic, effective detection of obstructions in front of the traffic sign can be achieved, and the position information of the sign blocked by the roadside trees or the information of the faulty system can be transmitted to the background terminal of the road maintenance personnel in time, so as to notify the relevant personnel to complete the accurate and timely pruning of the roadside trees and system maintenance, improve the maintenance efficiency of road facilities, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the maintenance efficiency of road facilities. It is of great significance to traffic management and traffic safety.

[0085] In summary, the utility model provides a signboard obstruction detection device and traffic sign based on laser ranging, which greatly improves efficiency while improving detection accuracy, and can timely transmit the position information of signboards obstructed by roadside trees or the information of faulty systems to the background terminal of road maintenance personnel, so as to notify relevant personnel to complete accurate and timely roadside tree pruning and system maintenance, improve the efficiency of road facility maintenance, reduce traffic delays, improve traffic operation efficiency and reduce the occurrence of traffic accidents, and can promote the construction and development of smart city transportation systems, reduce labor costs, and improve the efficiency of road facility maintenance, which is of great significance to traffic management and traffic safety.

[0086] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A signboard occlusion detection device based on laser ranging, characterized in that: Including main control baseboard, power module and laser ranging module; The power module is installed on the main control base plate and is electrically connected to the main control base plate; The laser distance measuring module is installed in the middle position above the power supply through a round table, and is electrically connected to the power supply and controlled by the main control baseboard; The main control base plate is detachably mounted on the traffic sign board through buckles.

2. The signboard occlusion detection device based on laser ranging according to claim 1, characterized in that: The laser ranging module is a pulsed ranging sensor; The main control board is a microcontroller board based on ATmega328P.

3. The signboard occlusion detection device based on laser ranging according to claim 1, characterized in that: A Beidou positioning module is also installed above the power supply and around the truncated table, and the Beidou positioning module is electrically connected to the power supply and is controlled by the main control baseboard; The top of the Beidou positioning module is lower than the top of the cone.

4. The signboard occlusion detection device based on laser ranging according to claim 3 is characterized in that: The Beidou positioning module is a full-constellation positioning and navigation module based on a single GNSS SOC chip.

5. The signboard occlusion detection device based on laser ranging according to claim 1, characterized in that: An Internet of Things module is also installed above the power supply and around the truncated table, and the Internet of Things module is electrically connected to the power supply and is control-connected to the main control baseboard; The top of the IoT module is lower than the top of the frustum.

6. The device for detecting signboard obstruction based on laser ranging according to claim 5, characterized in that: The IoT module is a Wi-Fi serial port module with model number ESP-01S.

7. The device for detecting signboard obstruction based on laser ranging according to claim 1, characterized in that: A voltage stabilizing circuit module and a solar panel are installed above the power supply and around the truncated table, and the solar panel is electrically connected to the power supply through the voltage stabilizing circuit module; The tops of the solar panel and the voltage stabilizing circuit module are both lower than the top of the frustum.

8. The device for detecting signboard obstruction based on laser ranging according to claim 7, characterized in that: The solar panel is a single crystal 1.6W-5.5V specification solar panel; The power source is a high temperature resistant 2000 mAh lithium battery with model number 103450.

9. The signboard occlusion detection device based on laser ranging according to claim 1, characterized in that: The main control base plate is a disc structure, and a first preset number of card holes are evenly spaced along the circumference of the disc near the edge; The main control base plate can be detachably installed in front of the traffic sign by snapping into the card hole.

10. A traffic sign, characterized in that: A signboard shielding detection device comprising a signboard body and any one of claims 1 to 9 described above, based on laser ranging; The signboard shielding detection device comprises at least two or more signboard shielding detection devices which are evenly installed along the edge of the signboard body toward the front of the signboard body.

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