KR20120057060A - Warning triangle controlled by wireless and operating method thereof - Google Patents

Abstract

PURPOSE: A radio control safety tripod and a driving method thereof are provided to eliminate risk factors from installation by controlling the movement of the radio control safety tripod by using a remote controller. CONSTITUTION: A motor driver(38) moves a body. A communications unit(34) wirelessly communicates with a remote controller. A receiving sensitivity measurement unit(36) periodically measures received signal strength indications for signal received from the remote controller. A main control unit(46) compares the received signal strength indication measured by the receiving sensitivity measurement unit with a set value which is fixed in advance. The main control unit drives and controls the motor driver.

Description

Wireless controlled safety tripod and its driving method {Warning triangle controlled by wireless and operating method

The present invention relates to a safety tripod, and more particularly to a safety tripod and a method of driving the safety tripod wirelessly controlled to ensure the safety of the vehicle driver.

In the case of an accident occurring while driving a vehicle on the road, or in an emergency situation due to a breakdown, etc., the vehicle is generally stopped on the road or the right shoulder of the road. At this time, a safety tripod should be installed to prevent the occurrence of an accident by notifying that the vehicle is stopped to another vehicle approaching from the rear of the stopped vehicle.

Recently, the driver's interest in the car safety tripod has been increasing due to various traffic accidents caused by vehicles stopped on the road. Even the term safety tripod is not used often enough to make you feel unfamiliar, but in recent years there has been a growing awareness of the potential for great consequences if you are not prepared for an accident.

In Korea, the driver is obliged to carry a safety tripod under Article 61 and 62 (2) of the Road Traffic Act, and a safety tripod must be installed when parking or stopping on a highway or automobile road for reasons of breakdown. In case of a violation, a penalty is imposed.

Therefore, if the vehicle suddenly stops on the road, be sure to install a safety tripod so that it does not collide with the passing vehicle, and if it is difficult to drive the vehicle on the road, install the safety tripod at a distance beyond the rear of the vehicle and Shake to ensure that vehicles from afar are visible and pass safely.

However, the existing safety tripod has to be installed by the user (that is, the owner of the vehicle) by moving about 50 to 200 m directly behind the vehicle, which may cause a dangerous situation for the user following the vehicle. In the dark night, the problem can be even worse.

In general, when the vehicle is parked on the shoulder of an emergency or a breakdown, and then the safety tripod is installed, the psychological distance felt by the installer is felt farther than the actual distance. There is a tendency to be installed in a close distance, and for this reason there is a problem that various accidents frequently occur due to less than the reference distance even after installing a safety tripod.

In addition, when a vehicle accident occurs on the road, a quick report should be made to a fire station, a police station, etc. The driver may be embarrassed by an abrupt accident and thus often fail to take measures.

Accordingly, the present invention has been made to solve the above-described problems, to provide a safety tripod that can control the movement to the remote controller without the user having to move directly.

In addition, the present invention is to provide a safety tripod and its driving method that can be installed more accurately, safely and conveniently at a point that satisfies the reference distance by using the strength of the signal using the wireless communication.

In addition, the present invention is to provide a safety tripod that can recognize the surrounding situation of the accident site, and transfer the information about it to an external device using a wireless communication.

Other objects of the present invention will become more apparent through the following preferred embodiments.

According to an aspect of the invention, in the safety tripod, a motor drive for moving the main body; A communication unit for wireless communication with a remote control; A reception sensitivity measuring unit for periodically measuring a reception sensitivity of a signal received from the remote controller; And a main control unit which compares the reception sensitivity measured by the reception sensitivity measurement unit with a preset setting value and controls the motor driving unit to be driven until they are identical to each other.

Here, the safety tripod further comprises a GPS receiver for measuring a position, the main control unit calculates the final destination position by using the current position measured after a certain distance or more than the initial starting position measured by the GPS receiver. And, the information on the final destination location can be transmitted to the remote controller by controlling the communication unit.

In addition, when new destination location information is received from the remote controller, the main controller may control the motor driving unit to move in the direction according to the new destination location information.

In addition, the safety tripod further comprises a sensing unit for sensing at least one or more of temperature, humidity, wind strength, the situation information including the position information measured by the GPS receiver and the sensing information sensed by the sensing unit It may be transmitted to the outside through the communication unit.

In addition, the safety tripod is a sensing unit for sensing visible light; And a light emitting unit for emitting light, wherein the main controller may control the operation of the light emitting unit according to the amount of visible light sensed by the sensing unit.

According to another aspect of the present invention, a driving method on a safety tripod equipped with a motor driving unit for moving the main body, comprising: receiving a moving target distance; After starting the movement, periodically measuring a reception sensitivity of a signal received through wireless communication with the remote controller; And comparing the measured reception sensitivity with a setting value according to the moving target distance, and controlling the motor drive unit to be driven until they are the same. The safety tripod driving method and a program for executing the method are recorded. A record carrier is provided.

Calculating a final destination position using a starting position measured using a GPS receiver provided before departure, an intermediate position measured after moving a predetermined distance after the start of the movement, and the moving target distance; And transmitting the information on the final destination location to the remote controller.

In addition, when new destination location information is received from the remote controller, the motor driver may be controlled to move in the direction according to the new destination location information.

According to the safety tripod according to the present invention, it is possible to control the movement with a remote controller to eliminate the risk of the user to move and install with a safety tripod directly.

In addition, according to the present invention, it is possible to install the safety tripod more accurately at the position set by using the strength of the signal using the wireless communication, the effect that can more accurately meet the reference distance than when the user moves directly have.

In addition, according to the safety tripod according to the present invention, as it recognizes the surrounding situation of the accident site and transmits the information about the accident to the external device using a wireless communication, the fire station, police station, etc., as well as the news of the accident around the accident site Can be delivered easily.

1 is a schematic diagram showing an overall system for wirelessly controlling a safety tripod according to an embodiment of the present invention.
Figure 2 is a block diagram showing the configuration of a safety tripod according to an embodiment of the present invention.
3 is a front view illustrating a remote controller according to an embodiment of the present invention.
4 and 5 are flowcharts illustrating a driving process for moving the safety tripod by the set moving target distance according to each embodiment of the present invention.
6 is a diagram illustrating a calculation method of a final destination location according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout the specification and claims. The description will be omitted.

1 is a configuration diagram schematically showing an entire system for wirelessly controlling a safety tripod according to an embodiment of the present invention.

Referring to FIG. 1, the safety tripod 30 is controlled by a remote controller 10 that is wirelessly communicated.

When the user (ie, the vehicle owner) parks or stops the vehicle on a road or a shoulder due to an accident or a vehicle breakdown, the safety tripod 30 is installed at a distance of 50 to 200 m to the rear of the vehicle. .

According to this embodiment, the user puts down the safety tripod 30 on the road to be installed, and then controlled by the remote controller 10 to move the safety tripod 30 to the safety tripod 30 conveniently in a desired position. Can be installed. That is, the user can control the driving distance, direction, etc. of the safety tripod 30 with the remote controller 10, it is possible to conveniently install the safety tripod 30.

In particular, when the safety tripod 30 according to the present embodiment has set the moving target distance, only the corresponding moving target distance is received using a received signal strength indication (RSSI) of the received signal according to wireless communication with the remote controller 10. Since the user moves only by setting the moving target distance, the user does not need to perform any other operation. In other words, the user does not need to perform a control such as the movement direction of the safety tripod 30, if only the moving target distance is set, the safety tripod 30 automatically moves by the corresponding distance and then stops the safety tripod at a desired position. 30 can be installed. And in order to install the safety tripod 30 in a more accurate position, you may set the coordinate of a destination. Coordinates for the current position are recognized by the GPS receiver provided in the safety tripod 30, the remote controller 10 receives the output of the map information according to the coordinates, the user selects the desired position from the map information All you have to do is make the selected point your final destination. Therefore, the coordinate information about the final destination selected by the user is transferred from the remote controller 10 to the safety tripod 30, so that the safety tripod 30 can move directly to the final destination.

In addition, the safety tripod 30 according to the present embodiment is not only used as a safety display means installed in a specific position, but also measures the current position by sensing temperature, humidity, wind strength, etc. The situation information of the occurrence site can be generated and transmitted to an external communication device through a wireless communication function. Here, the external communication device may be a user's portable terminal (for example, a general mobile phone, a smartphone, a laptop, etc.) or a public office server such as an emergency dispatch center or a police station of a fire station connected through a communication network such as an internet network. . The wireless communication function is a concept that includes not only short-range communication functions such as zigbee and Bluetooth, but also a function capable of performing communication through a communication network such as Wi-Fi. . Local area communication technology and communication technology using a communication network is still used in various fields and will be apparent to those skilled in the art, and thus detailed description thereof will be omitted.

Hereinafter, the configuration of the safety tripod 30 having various functions other than the above-described function will be described in detail.

2 is a block diagram showing the configuration of the safety tripod 30 according to an embodiment of the present invention, Figure 3 is a front view illustrating a remote controller 10 according to an embodiment of the present invention.

First, referring to FIG. 2, the safety tripod 30 according to the present embodiment includes a GPS receiver 32, a wireless communication unit 34, a reception sensitivity measuring unit 36, a motor driving unit 38, a power supply unit 40, and a sensor. The unit 42 includes a light emitting unit 44 and a main control unit 46. Here, some components (for example, the reception sensitivity measurement unit 36, etc.) need not necessarily be implemented in hardware, and may be implemented in software such as a program that can be executed by the main controller. Will be self explanatory. Although not shown in the drawings, the safety tripod 30 may further include components such as a tripod body having a triangular shape and a moving part such as a wheel for moving the tripod body.

The GPS receiver 32 is for receiving a GPS signal transmitted from a GPS satellite and measuring a current position. GPS receivers are still used in electronic devices such as navigation terminals and I-Phones, and thus detailed descriptions thereof will be omitted.

The wireless communication unit 34 is for wirelessly communicating with the remote controller 10 by receiving or sending a radio frequency (RF) signal. According to another embodiment, the wireless communication unit 34 may not only communicate with the remote controller 10 but also perform data communication with other devices coupled through a communication network. As described above, for example, the safety tripod 30 is connected to the Internet network through the AP (access pointer) device using the Wi-Fi function, the situation information of the accident occurrence site as described above by a server such as a fire station, a police station, etc. Can also be transmitted.

The reception sensitivity measuring unit 36 measures reception sensitivity (RSSI), which is a strength of a signal received from the remote controller 10. The reception sensitivity refers to the average signal strength index at the receiver input generated by the measurement circuit of the receiver. Since the reception sensitivity is still widely used in mobile communication and the like, it will be obvious to those skilled in the art, so detailed description thereof will be omitted.

The motor driving unit 38 is for driving a motor for moving a moving means such as a wheel so that the tripod main body can be moved, and the power supply unit 40 is for supplying power required by the safety tripod 30, for example. For example, it may be a rechargeable battery. In addition, although not shown in the drawing, the power supply unit 40 may include a solar cell to charge the electric power by converting sunlight into electrical energy. For example, the solar cell is attached to the safety plate of the triangular shape of the safety tripod 30, or the safety plate itself is implemented as a solar cell, the solar power generation can be driven. Photovoltaic power generation is obvious to those skilled in the art, and thus a detailed description thereof will be omitted.

The sensor unit 42 is for recognizing the surrounding situation, and may include a temperature sensor for measuring temperature, a pressure sensor for measuring wind intensity, a humidity sensor for measuring humidity, and the like, and A light amount sensor for measuring the light amount may be included.

The light emitter 44 emits light at night. According to an exemplary embodiment, whether the light emitter 44 is driven may be determined according to the amount of external light measured by the light amount sensor of the sensor 42. The light emitting unit 44 may be implemented with, for example, a light emitting diode (LED).

The main controller 46 controls the movement of the tripod body by controlling the motor driver 38 according to a signal received from the remote controller 10, and based on the sensing information measured by the sensor unit 42, the light emitting unit ( 44 to control the driving, or to recognize the surrounding conditions (temperature, humidity, wind strength, etc.) together with the location information by the GPS receiver 32 to generate the surrounding situation information to be transmitted to the outside through the wireless communication unit 34 Function.

In particular, the main controller 46 is received through the wireless communication unit, or when the moving target distance is input through the provided input means (not shown) such as a button method, the remote controller (measured by the reception sensitivity measuring unit 36) Using the received sensitivity of the signal sent from 10) to control the drive of the motor drive unit 38 to move only by the target moving distance. The method will be described in detail later with reference to related drawings.

Referring to FIG. 3 illustrating the remote controller 10, the remote controller 10 may include a display module 12, a direction control button 14, and a movement distance setting button 16. In addition, a safety tripod ( Communication means for communicating with 30), the control means for controlling the output of the display module 12, and processing the input by the direction control button 14 and the movement distance setting button 16 may be further included. Of course it is.

Direction control button 14 is for controlling the movement of the safety tripod 30, the user can wirelessly control the movement direction and movement of the safety tripod 30 by using the up, down, left, and right buttons of the direction adjustment button (14). Can be.

The movement distance setting button 16 is for setting the movement target distance of the safety tripod 30, and can set various distances such as 50m, 100m, 150m, 200m with only one operation. Of course, the above-described distance and operation method is just one example, and the distance may be set in various ways, and a method of directly inputting a wheel method or a numerical value instead of a button method may be equally applied. When the moving target distance is set, the information about this is transmitted to the safety tripod 30, the safety tripod 30 is moved only by the corresponding moving target distance, the safety tripod 30 is moved to the set moving target distance This will be described later.

The display module 12 is for displaying various screens to be provided to the user. For example, the display module 12 displays information received from the safety tripod 30 such as surrounding situation information (temperature, humidity, wind strength, light quantity, etc.), or safety. A separate user interface (UI) screen for controlling the tripod 30 may be displayed. According to another embodiment, when the display module 12 includes a touch-screen function, the direction control button 14 and the moving distance setting button 16 are replaced with the user interface screen of the display module. May be

Here, the remote controller 10 may be a personal portable electronic device such as a smart phone, which is widely spread in recent years, and the function of the remote controller 10 is an application program executed in the personal portable electronic device such as the smart phone. It will be apparent to those skilled in the art that the present invention may be implemented as.

Hereinafter, a method in which the safety tripod 30 moves by the set moving target distance using the reception sensitivity as described above will be described.

4 and 5 are flowcharts illustrating a driving process for moving the safety tripod 30 by the set moving target distance according to each embodiment of the present invention.

First, referring to FIG. 4, the safety tripod 30 receives a moving target distance (S410). The input of the moving target distance may be input by an input means (for example, implemented by buttons, wheels, switches, etc.) provided in the safety tripod 30 itself, or may be received from the remote controller 10. For example, the user may set the moving target distance by operating the moving distance setting button 16 of the remote controller 10 as shown in FIG. 3, and the information on the set moving target distance is secured wirelessly. Is transmitted to the tripod (30).

The safety tripod 30 starts moving in the direction in which it is placed (S420), and measures the reception sensitivity of the signal received from the remote controller 10 (S430).

The safety tripod 30 compares the measured reception sensitivity with the set value according to the set moving target distance (S440). Here, the set value means a value of the reception sensitivity measured when the safety tripod 30 and the remote controller 10 are separated from each other by the set moving target distance. The safety tripod 30 maintains preset values for each distance, such as 50m, 100m, 150m, 200m, 250m, 300m, and can recognize the setpoint according to the set moving target distance. In other words, when the remote controller 10 and the safety tripod 30 are spaced 100 m apart, assuming that the reception sensitivity measured on the safety tripod 30 is -40 dBm on average, the set value of the moving target distance 100 m becomes -40 dBm. will be.

For convenience of understanding, the following table exemplifies the set values.

Moving distance Set value 50 m 'Step 1' (-30dBm) 100 m '2-step' (-40dBm) 150 m '3 steps' (-50dBm) 200 m '4 levels' (-60dBm) 250 m '5 steps' (-70dBm) 300 m '6 steps' (-80dBm)

As described above, the safety tripod 30 has a preset value for each moving target distance in advance so as to recognize the set value according to the input moving target distance.

Therefore, the safety tripod 30 determines whether the current movement is completed by the input moving target distance by comparing the currently measured reception sensitivity with the set value. In other words, if the measured reception sensitivity and the set value are not the same, the movement has not yet been moved by the input moving target distance, so that further movement is performed and the reception sensitivity is measured again later. For example, if the safety tripod 30 has not yet arrived at the destination, the distance between the remote controller 10 and the safety tripod 30 is closer than the moving target distance so that the reception rate is good and the measured reception sensitivity is greater than the set value. Will have

As a result of the determination in S440, if the measured reception sensitivity and the set value are the same, the safety tripod 30 determines that the movement is completed by the input movement target distance and stops the movement (S450).

Here, although not shown in the drawing, if the safety tripod 30 may be moved more distance than the input target moving distance, according to another embodiment by comparing the measured reception sensitivity and the set value If the received sensitivity is higher than the set value, the movement is maintained in the original direction. If the received sensitivity is lower than the set value, the movement is judged to be farther away and moved in the opposite direction. The movement may be performed until it is the same (or similar within a preset range).

According to the present embodiment, since the safety tripod 30 moves up and down only in the first placed direction, the user must first place the safety tripod 30 on the floor so as to face the correct direction. If the left and right directions can be installed in the wrong position, the user has to manipulate the movement direction of the safety tripod 30 by using the direction control button 14 of the remote controller 10.

Referring to Figure 5 showing another embodiment for solving the problem that the direction is shifted, the safety tripod 30 is a GPS receiver having a starting position which is the current position before departure when the moving target distance is input (S510) Measured using (32) (S515).

Thereafter, the safety tripod 30 starts the movement (S520), determines whether the movement has been made by a predetermined distance (for example, 10m) after the movement (S525), and when the movement of the predetermined distance is completed, the current position Measure again (S530).

The safety tripod 30 calculates the final destination position using the starting position, the current position, and the input moving target distance (S535). Referring to FIG. 6, which is a view illustrating a calculation method of a final destination location according to an embodiment of the present disclosure, since the distance between the starting location and the current location is the predetermined distance, the moving target input from the starting location to the current location direction. Extending by a distance (eg, 50m as shown in the figure) can yield the final destination location.

The safety tripod 30 transmits the calculated information about the final destination position to the remote controller 10 (S540). The remote controller 10 may display the final destination location through the provided display module 12. Of course, the remote controller 10 may receive the GPS coordinate value according to the final destination position from the safety tripod 30 and map it to a map and output the map, or the final destination location is displayed from the safety tripod 30. It can also receive and print itself. Therefore, the user can check the final destination location of the safety tripod 30 is finally installed, if you want to change the final destination location by operating the direction control button 14, or according to another embodiment the map showing the final destination location You can select the new final destination location you want within. When a new final destination location is set, information on this may be provided from the remote controller 10 to the safety tripod 30.

The safety tripod 30 periodically measures the reception sensitivity (S545), recognizes whether the measured reception sensitivity is the same as the set value according to the moving target distance, recognizes whether it has reached the final destination, and arrives at the final destination. If it is recognized that the movement is stopped (S570).

If the measured reception sensitivity and the set value according to the moving target distance are not the same, the vehicle has not yet arrived at the destination, and thus the safety tripod 30 keeps moving and moves to S545 again. Then, it is determined whether the information on the new final destination location as described above is received from the remote controller 10 (S555). When new final destination location information is received from the remote controller 10, the safety tripod 30 changes the direction of movement so that it can be moved in the direction of the final destination location.

In the method described with reference to FIGS. 4 and 5, the user inputs only the initial moving target distance as an example. According to another exemplary embodiment, when the GPS controller is provided in the remote controller 10, the current position is measured and the position is measured. By using the map information according to the safety tripod 30 may also be provided to the safety tripod 30 by setting the information on the final location. Therefore, the safety tripod 30 can move to the corresponding final destination by using the coordinate value and the moving target distance information about the received final destination.

The driving method of the safety tripod according to the present invention described above can be embodied as computer readable codes on a computer readable recording medium. Computer-readable recording media include all kinds of recording media having data stored thereon that can be decrypted by a computer system. For example, there may be a read only memory (ROM), a random access memory (RAM), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, and the like. In addition, the computer-readable recording medium may be distributed and executed in a computer system connected to a computer network, and may be stored and executed as a code readable in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that various modifications and changes may be made.

10: remote controller
12: display module
14: direction control button
16: moving distance setting button
30: safety tripod
32: GPS receiver
34: wireless communication unit
36: reception sensitivity measurement unit
38: motor drive part
40: power supply
42; The sensor unit
44: light emitting unit
46: main control unit

Claims (9)

For safety tripods,
A motor driver for moving the main body;
A communication unit for wireless communication with a remote control;
A reception sensitivity measuring unit for periodically measuring a reception sensitivity of a signal received from the remote controller; And
And a main control unit which compares the reception sensitivity measured by the reception sensitivity measurement unit with a preset setting value and controls the motor driving unit to be driven until they are equal to each other.
The method of claim 1,
Further comprising a GPS receiver for measuring the position,
The main controller calculates a final destination location using a current location measured after a predetermined distance from the initial starting location measured by the GPS receiver, and controls the communication unit to control information about the final destination location. Radio controlled safety tripod, characterized in that for transmitting.
The method of claim 2,
And when the new destination location information is received from the remote controller, the main control unit controls the motor driving unit to move in the direction according to the new destination location information.
The method of claim 2,
Further comprising a sensing unit for sensing at least one or more of temperature, humidity, wind strength,
And the situation information including position information measured by the GPS receiver and sensing information sensed by the sensing unit is transmitted to the outside through the communication unit.
The method of claim 1,
Sensing unit for sensing the visible light; And
Further comprising a light emitting unit for emitting light,
And the main controller controls the operation of the light emitting unit according to the amount of visible light sensed by the sensing unit.
In the driving method on a safety tripod provided with a motor drive unit for moving the main body,
Receiving a moving target distance;
After starting the movement, periodically measuring a reception sensitivity of a signal received through wireless communication with the remote controller; And
And comparing the measured reception sensitivity with a set value according to the moving target distance, and controlling the motor driving unit to be driven until they are equal to each other.
The method according to claim 6,
Calculating a final destination position using a starting position measured using a GPS receiver provided before departure, an intermediate position measured after moving a predetermined distance after the start of the movement, and the moving target distance; And
And transmitting the information about the final destination location to the remote controller.
The method of claim 7, wherein
And when the new destination location information is received from the remote controller, controlling the motor driving unit to move in the direction according to the new destination location information.
A recording medium readable by a digital information processing apparatus, in which a program for performing the method of any one of claims 6 to 8 is recorded.

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