KR20230147286A - Mini excavator rollover and loss prevention system - Google Patents

Abstract

The present invention relates to a mini excavator overturn and loss prevention system, which includes a display unit installed outside the mini excavator to register user information and display status information of the mini excavator; A controller that detects the presence of workers within the set work radius through a human body detection sensor, detects the risk of tipping over and unauthorized movement of the mini excavator through a gyro sensor, and provides a stable excavation work environment through a LiDAR sensor; A user terminal that receives and outputs current location map information from the controller when the mini excavator is lost; and a registered acquaintance terminal that receives and outputs emergency situation information from the controller in the event of a mini excavator emergency.
According to the present invention as described above, when a risk of tipping over is detected during work or a human body is detected within the work radius, a warning light or a preset warning sound is output, and when moving in a no-movement state, an unauthorized device including GIS-based current location information is output. By transmitting movement detection information to a registered terminal, mini excavator overturns and safety accidents can be prevented in advance, and immediate response is possible when the mini excavator is stolen.

Description

{Mini excavator rollover and loss prevention system}

The present invention relates to a mini excavator rollover and loss prevention system. More specifically, the present invention relates to a mini excavator rollover and loss prevention system, and more specifically, to prevent the risk of a mini excavator from tipping over by analyzing the tipping risk area during work, and to send a text message to a registered acquaintance when movement is detected in a no-start state. At the same time as notifying, it displays the current location in GIS to prevent theft, displays a warning light when a human body is detected within the work radius, and provides graphics including analysis data on the depth and leveling information of the excavation work to improve workability. It's about technology.

In general, an excavator is a type of heavy construction equipment, and is used for tasks such as excavation work to dig up ground at civil engineering, architecture, and construction sites, loading work to transport earth and sand, crushing work to dismantle buildings, and grading work to clear the ground. It is a construction machine that performs.

These excavators are equipped with a driver's seat on the upper rotating body where the driver can ride, and in this case, the driver's seat is generally exposed to the outside. Therefore, anyone can easily enter the driver's seat, which has the disadvantage of being vulnerable to security, and this problem applies not only to the above-described excavator but also to most heavy construction equipment.

Meanwhile, conventional heavy construction equipment, including the above-mentioned excavator, is used for construction/civil engineering work, and such construction/civil engineering work is generally performed for a very long period of time. For example, general construction/civil engineering work can be carried out for as little as a month or as many as several years, and because it is used in many places throughout the construction period, the use of heavy construction equipment continues for a considerable period of time.

At this time, since the heavy construction equipment is generally heavy and not easy to move, the driver often leaves the heavy construction equipment at the construction site without moving it to another place when work is completed.

Therefore, as described above, there is a problem in that heavy construction equipment left at a construction site is frequently lost and stolen because there are no people at the construction site at night, and there is a problem of insufficient preparation for this.

In addition, among the accidents caused by excavators, the accident rate due to the excavator overturning cannot be ignored. When the center of gravity changes due to movement of the boom, arm, or tool, such as while the excavator is running or during excavation work, it is necessary to prevent the excavator from overturning. They have to rely on the driver's control, which can lead to increased driver fatigue and cause another accident.

In order to improve this problem, the applicant notifies registered acquaintances with a text message in case of an emergency during work and displays the status of the excavator (oil, temperature, working time, etc.) to prevent the risk of the mini excavator tipping over. When moving in a no-start state, a text message is sent to the registered manager and the current location is displayed in GIS to prevent theft of the mini excavator. A warning light is displayed when a human body is detected within the working radius, and there is a risk of tipping over. We would like to propose a system that prevents safety accidents in advance by providing warnings.

Republic of Korea Patent Publication No. 10-2017-0065341 (published on June 13, 2017)

The purpose of one embodiment of the present invention is to prevent excavator overturns and safety accidents in advance by outputting a warning light or a preset warning sound when the risk of overturning is detected during work or when a human body is detected within the work radius.

One embodiment of the present invention is to enable immediate response in case of theft of a mini excavator by transmitting unauthorized movement detection information including GIS-based current location information to a registered terminal when moving in a no-movement state.

One embodiment of the present invention provides a graphic image of the height and change of the work surface through a LiDAR sensor, allowing workers to check the work process, progress, and work results in real time on the screen, enabling efficient work. do.

One embodiment of the present invention detects the slope state or risk factors of the ground behind the mini excavator through a lidar sensor and warns in advance of risk factors in the reverse direction of the excavator, thereby preventing safety accidents and the risk of tipping over. I'm doing it.

One embodiment of the present invention for achieving this technical problem relates to a mini excavator overturn and loss prevention system, which includes a display unit installed outside the mini excavator to register user information and display status information of the mini excavator; A controller that detects the presence of workers within the set work radius through a human body detection sensor, detects the risk of tipping over and unauthorized movement of the mini excavator through a gyro sensor, and provides a stable excavation work environment through a LiDAR sensor; A user terminal that receives and outputs current location map information from the controller when the mini excavator is lost; and a registered acquaintance terminal that receives and outputs emergency information from the controller in the event of a mini excavator emergency.

Preferably, the display unit includes an initial screen module that displays user registration and acquaintance registration options by displaying a preset image on the screen when the mini excavator is started; a registration screen module that registers a user by receiving registration information including one of a fingerprint, pattern, or PIN number, and registers an acquaintance by receiving registration information including a plurality of acquaintance contact information; Status information such as current time, driving time, water temperature, battery voltage, oil, engine temperature, or engine status is displayed on the screen, and when a human body is detected within the rear work radius, the lamps on the left and right sides of the screen flash, and the hazardous area within the work radius is displayed. It is characterized by including a main screen module that outputs a warning sound upon detection and displays the status of excavation and leveling work on the screen.

The controller determines whether there is a risk of overturning by calculating the angular velocity of the mini excavator. If a risk of overturning is detected, it controls the output of a preset warning sound. If it detects that the mini excavator is moving in a no-start state, it determines the current location based on GIS. A gyro sensor that generates unauthorized movement detection information containing information; A human body detection sensor that transmits a set alarm message to the display unit and outputs it on the screen when a person is detected behind the mini excavator during operation; And the height of the ground to be worked on is generated as a graphic image and transmitted to the display unit. When working on ground leveling, the height of the ground to be worked on is continuously measured and the generated graphic image is transmitted to the display unit, and the excavation depth of the planned ground during excavation work is transmitted to the display unit. It is characterized by including a lidar sensor that continuously measures and transmits the generated graphic image to the display unit.

The LiDAR sensor transmits a graphic image generated by detecting the ground condition around the mini excavator and the curvature of the ground within the working radius to the display unit, and when the curvature of the ground within the working radius is greater than the standard value, a warning and movement action are taken. It is characterized by outputting an inducing warning sound.

The LiDAR sensor is characterized by measuring the excavation depth and ground slope value using a trigonometric function from the currently measured LiDAR sensor value (L), based on the installation angle (a) and installation location (h).

According to one embodiment of the present invention as described above, when a risk of tipping over is detected during work or a human body is detected within the work radius, a warning light or a preset warning sound is output, thereby preventing excavator overturning and safety accidents in advance.

According to the present invention, when moving in a no-movement state, unauthorized movement detection information including GIS-based current location information is transmitted to the registered terminal, enabling immediate response in the event of the mini excavator being stolen.

According to the present invention, by providing a graphic image of the height and change of the work surface through a LiDAR sensor, efficient work is possible because workers can check the work process, progress, and work results in real time through the screen.

According to the present invention, it is possible to prevent safety accidents and the risk of tipping over by detecting the slope state or risk factors of the ground behind the mini excavator through a lidar sensor and warning in advance of risk factors in the reverse direction of the excavator. .

1 is a block diagram showing a mini excavator overturn and loss prevention system according to an embodiment of the present invention.
Figure 2 is a block diagram showing an LCD touch panel of a mini excavator overturn and loss prevention system according to an embodiment of the present invention.
Figure 3 is a block diagram showing a controller of a mini excavator overturn and loss prevention system according to an embodiment of the present invention.
Figure 4 is an example diagram showing the principle of measuring the digging depth through the lidar sensor of the mini excavator overturn and loss prevention system according to an embodiment of the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms and words used in this specification and claims are based on the technical idea of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain the invention in the best way. It must be interpreted with corresponding meaning and concept. Additionally, it should be noted that if a detailed description of a known function related to the present invention and its configuration is judged to unnecessarily obscure the gist of the present invention, the detailed description has been omitted.

Referring to FIG. 1, the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention is installed outside the mini excavator 10, registers user information, and displays status information of the mini excavator 10. However, in an emergency situation, the display unit 100 flashes the work warning lamps (R) provided on both sides, detects the presence of a worker within the set work radius through a human body detection sensor, and uses a gyro sensor to detect the presence of a worker in the mini excavator (10). ) detects the risk of tipping over and unauthorized movement, and receives and outputs current location map information from the controller 200 when the mini excavator 10 is lost and the controller 200 provides a stable excavation work environment through a lidar sensor. It is configured to include a user terminal 300 that receives emergency situation information from the controller 200 and outputs it when the mini excavator 10 is in an emergency situation.

Specific mention will be omitted below, but the user terminal 300 and the registered acquaintance terminal 400 of the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention are connected to the controller 200 through an information and communication network. It is desirable to understand that it consists of any smart device among accessible tablets, laptops, or smartphones, and is driven by an app distributed and installed online.

Hereinafter, with reference to FIG. 2, the detailed configuration of the display unit 100 of the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention is as follows.

As shown in FIG. 2, the display unit 100 includes an initial screen module 110, a registration screen module 120, a main screen module 130, and an end screen module 140, and an LCD touch screen. Alternatively, it can be configured as a Hybrid Touch Screen Panel that supports current recognition as well as existing optical sensor recognition.

First, the initial screen module 110 of the display unit 100 is configured to display a preset image on the screen at startup to display user registration and acquaintance registration options, and to display the main screen when a preset time elapses.

In addition, when the registration screen module 120 receives a user registration option among the options displayed by the initial screen module 110, the registration screen module 120 registers the user by receiving registration information including any one of a fingerprint, pattern, or PIN number. , may be included, and the driver is registered by verifying the authenticity of the entered value.

At this time, if the value included in the registration information received by the registration screen module 120 is a fingerprint, a process is added to confirm the match by performing a procedure to verify the authenticity of the fingerprint or to confirm in connection with a government agency. It can be.

Additionally, when the registration screen module 120 receives an acquaintance registration option among the options displayed by the initial screen module 110, the registration screen module 120 receives registration information including a plurality of acquaintance contact information and registers the acquaintance. At this time, the acquaintance contact information may include the mobile phone numbers of at least four people, but the present invention is not limited to this.

Meanwhile, the main screen module 130 displays any one of the current time, driving time, water temperature, battery voltage, oil, engine temperature, or engine status on the screen, and adjusts the rear work radius according to the control of the controller 200. When a human body is detected, the lamps on the left and right sides of the screen flash, a warning sound is output when a dangerous area within the work radius is detected, and the status of excavation and leveling work is displayed on the screen.

And, the end screen module 140 is configured to display a set image on the screen when startup is completed.

Hereinafter, with reference to FIG. 3, the detailed configuration of the controller 200 of the mini excavator overturn and loss prevention system (S) according to an embodiment of the present invention is as follows.

As shown in FIG. 3, the controller 200 includes a gyro sensor 210, a CDMA communication module 220, a human body detection sensor 230, and a LiDAR sensor 240.

First, the gyro sensor 210 is configured to calculate the angular velocity of the mini excavator 10 to determine whether there is a risk of the mini excavator 10 tipping over, and to control the output of a preset warning sound when the risk of tipping over is detected. At this time, if the tilted state continues for a preset time, emergency situation information is applied to the CDMA communication module 220.

In addition, when the gyro sensor 210 detects that the mini excavator 10 is moving in a no-movement state, it generates unauthorized movement detection information including GIS-based current location information and transmits it to the CDMA communication module 220.

In addition, the CDMA communication module 220 is configured to transmit emergency situation information and unauthorized movement detection information authorized by the gyro sensor 210 to the pre-registered user terminal 300 and the registered acquaintance terminal 400. At this time, the CDMA communication module 220 may be configured to transmit unauthorized movement detection information to the nearest police station based on current location information in addition to acquaintance contact information.

In addition, the human body detection sensor 230 is mounted at the rear of the mini excavator 10, and when it detects that a person is located behind the mini excavator 10 during the work process, it transmits a set alarm message to the display unit 100 and controls it to be displayed on the screen. , It is configured to output a warning sound.

In addition, the LiDAR sensor 240 generates a graphic image of the height of the work target ground and transmits it to the display unit 100, and displays the graphic image generated by continuously measuring the height of the work target ground during ground leveling work. It is transmitted to the display unit 100 and is configured to transmit a graphic image generated by continuously measuring the planned excavation depth of the ground during excavation work to the display unit 100. At this time, the LiDAR sensor 240 may be mounted in front of the mini excavator 10.

In this way, according to the lidar sensor 240 according to an embodiment of the present invention, efficient work is possible because workers can check the work process, progress, and work results through the screen.

In addition, the LiDAR sensor 240 transmits a graphic image generated by detecting the ground condition around the mini excavator 10 and the curvature state of the ground within the working radius to the display unit 100, and detects the curvature state of the ground within the working radius. If is greater than the standard value, it is configured to output a warning sound to induce warning and movement action.

In this way, according to the lidar sensor 240 according to an embodiment of the present invention, it is possible to prevent safety accidents in advance by detecting the slope of the ground or risk factors and warning in advance of risk factors in the reverse direction of the excavator. You can.

In addition, Figure 4 is an exemplary diagram showing the principle of measuring the digging depth during digging work through the lidar sensor 240 of the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention.

First, in the case of excavation work, the LiDAR sensor 240 is installed in front of the mini excavator 10, and as shown in (a) of FIG. 4, based on the installation angle (a) and installation position (h) , Measure the excavation depth using a trigonometric function from the currently measured LiDAR sensor value (L).

In addition, the LiDAR sensor 240 can easily check the work status by graphically displaying the difference between the measured digging depth and the digging depth value set by the operator.

In order to ensure the stability of the working environment, the LiDAR sensor 240 is installed at the rear of the mini excavator 10, and as shown in FIG. 4(b), based on the installation angle (a) and installation position (h) In this way, the slope value of the ground is detected using a trigonometric function from the currently measured lidar sensor value (L).

In addition, when the measured slope of the ground is greater than the standard value, the LiDAR sensor 240 outputs a warning sound to prevent safety accidents by making workers aware of hazards behind them in advance.

The lidar sensor 240 as described above uses laser light sources that have a specific wavelength or can change the wavelength in the wavelength range from 250 nm to 11 μm, and a semiconductor laser diode that is small and capable of low power is used.

And, [Table 1] shows the specifications of the lidar sensor 240 of the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention.

In this way, according to the mini excavator rollover and loss prevention system (S) according to an embodiment of the present invention as described above, when a risk of rollover is detected during work or a human body is detected within the work radius, a warning light or a preset warning sound is output. By doing so, mini excavator overturns and safety accidents can be prevented in advance.

In addition, when moving in a no-movement state, unauthorized movement detection information including GIS-based current location information is transmitted to the registered terminal, enabling immediate response in the event of theft of the mini excavator, and the height of the ground to be worked on through the LiDAR sensor. By providing graphic images of changes and changes, workers can check the work process, progress, and work results in real time on the screen, enabling efficient work.

Although the preferred embodiments have been described and illustrated above to illustrate the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described, and does not deviate from the scope of the technical idea. Those skilled in the art will appreciate that numerous changes and modifications can be made to the present invention without any modification. Accordingly, all such appropriate changes, modifications and equivalents shall be considered to fall within the scope of the present invention.

S: Mini excavator tipover and loss prevention system
R: work warning lamp
10: Mini excavator
100: display unit
110: Initial screen module
120: Registration screen module
130: Main screen module
140: End screen module
200: Controller
210: Gyro sensor
220: CDMA communication module
230: Human body detection sensor
240: LiDAR sensor
300: User terminal
400: Registered acquaintance terminal

Claims (5)

A display unit installed outside the mini excavator to register user information and display status information of the mini excavator;
A controller that detects the presence of workers within the set work radius through a human body detection sensor, detects the risk of tipping over and unauthorized movement of the mini excavator through a gyro sensor, and provides a stable excavation work environment through a LiDAR sensor;
a user terminal that receives and outputs current location map information from the controller when the mini excavator is lost; and
In case of an emergency situation of the mini excavator, a registered acquaintance terminal that receives and outputs emergency information from the controller
A mini excavator tipover and loss prevention system comprising: According to paragraph 1,
The display unit,
An initial screen module that displays user registration and acquaintance registration options by displaying a preset image on the screen when the mini excavator is started;
a registration screen module that registers a user by receiving registration information including one of a fingerprint, pattern, or PIN number, and registers an acquaintance by receiving registration information including a plurality of acquaintance contact information; and
Status information such as the current time, driving time, water temperature, battery voltage, oil, engine temperature, or engine status is displayed on the screen, and when a human body is detected within the rear work radius, the lamps on the left and right sides of the screen flash, and a hazardous area within the work radius is displayed. The main screen module outputs a warning sound upon detection and displays the status of digging and leveling work on the screen.
A mini excavator tipover and loss prevention system comprising: According to paragraph 1,
The controller is,
Calculate the angular velocity of the mini excavator to determine whether there is a risk of tipping over, but if a risk of overturning is detected, the output of a preset warning sound is controlled, and when the mini excavator is detected to be moving in a no-start state, GIS-based current location information A gyro sensor that generates unauthorized movement detection information including;
A human body detection sensor that transmits a set alarm message to the display unit and controls it to be displayed on the screen when a person is detected behind the mini excavator during operation; and
The height of the ground to be worked on is generated as a graphic image and transmitted to the display unit. When working on ground leveling, the height of the ground to be worked on is continuously measured and the generated graphic image is transmitted to the display unit, and the excavation of the planned ground is performed during excavation work. A lidar sensor that continuously measures depth and transmits the generated graphic image to the display unit.
A mini excavator tipover and loss prevention system comprising: According to paragraph 3,
The lidar sensor is,
A graphic image generated by detecting the ground condition around the mini excavator and the curvature of the ground within the working radius is transmitted to the display unit, and when the curvature of the ground within the working radius is greater than a standard value, a warning sound is generated to induce warning and movement action. Print
Mini excavator overturn and loss prevention system, characterized in that. According to paragraph 3,
The lidar sensor is,
Based on the installation angle (a) and installation location (h), measure the excavation depth and ground slope using trigonometric functions from the currently measured lidar sensor value (L).
Mini excavator overturn and loss prevention system, characterized in that.