KR20200058014A - System for alarming approach of train cooperating with working clothes - Google Patents

Abstract

Disclosed is a train approach warning system linked with working clothes. According to the present invention, the train approach warning system linked with working clothes comprises: work clothes worn on a worker who is present at a railway worksite and providing a warning to the worker through a warning means when a train approaches the railway worksite; and a user terminal communicating with the working clothes through a wired or wireless network and when the approach of the train is detected, transferring a control signal to the working clothes to control the warning means to be operated. Accordingly, the train approach warning system linked with working clothes can secure the safety of a worker who is present in a railway worksite by operating an LED of the working clothes which is activated while being linked to a smartphone to warn the worker of the approach of a train so that the worker can easily recognize the approach of the train, in a visible manner, at the railway worksite in which a loud noise is generated.

Description

System for alarming approach of train cooperating with working clothes}

The present invention relates to a train approach warning system interlocked with work clothes, and more particularly, to a train approach warning system interlocked with work clothes that ensures the safety of workers located in a railroad workshop by detecting the approach of a train and warning the operator. It is about.

The accidents of railroad workers in Korea are mainly caused by railway track inspection and repair work, and because of the high train density, there is not enough time to cut off the trains in operation, and the risk of accidents is very high due to the high proportion of work on the tracks.

In particular, due to the nature of railroad operation, as railway workers are working at night, collision accidents are constantly occurring due to the carelessness of the train operator at night and the sensory blockage of railroad workers, and measures to prevent such safety accidents are urgently needed.

At the time of railroad track maintenance, safety management is centered on manpower, and a train watchman is separately arranged at a certain distance from the work space.

The train watchdog uses a method to transmit the approach warning of a train through a flag or a radio, and as the train speeds up and the interval between trains becomes shorter, it is difficult to secure enough train identification distances to secure worker safety.

In addition, there is a risk of accidents due to a decrease in concentration due to long-time monitoring by train guards and workers on the operating line during night work, which do not accurately recognize the approach warning signal.

Accordingly, in order to prevent safety accidents caused by train collisions of workers during railroad track maintenance work, trains approaching from a long distance (over 1.5km) are automatically detected to prevent workers from accidents in real time, and in real time to workers. Development of a system capable of propagating alarms is required.

Republic of Korea Registered Patent No. 10-1492411 (Name of invention: worker's railway vehicle approach warning device)

The present invention was devised to solve the above problems, and an object of the present invention is to operate a LED of a work clothes interlocking with a smartphone so that an operator can visually easily recognize the approach of the railroad in a railway workshop where noise is severely generated. To provide a train approach warning system that works in conjunction with work clothes to ensure the safety of workers located at railroad workplaces by warning about the approach of trains.

The train approach warning system interlocked with the work clothes according to an embodiment of the present invention for achieving the above object is worn on an operator located at a railway workshop, and warns the operator through a warning means when the train approaches the railway workplace. Work clothes provided to be; And a user terminal that is provided to communicate with the work clothes by wire or wirelessly, and transmits a control signal to the work clothes to control the warning means when the approach of the train is detected.

Here, the work clothes are provided with a connector to be wired to the user terminal, and when the user terminal is wired, power may be supplied from the user terminal.

In addition, the work clothes may be provided with a terminal pocket of the size of the user terminal so that the user terminal is accommodated, and the user terminal may be connected through the connector located at an inner lower end of the pocket.

In addition, the work clothes, by providing an LED as the warning means, when receiving the control signal, the LED can be operated to visually warn.

In addition, the user terminal transmits the control signal in wireless communication with the work clothes, and when the approach of the train is detected, the control signals are transmitted to a plurality of work clothes located in the railway workshop, so that a plurality of warning means are collectively. Can be controlled.

In addition, the train approach warning system interlocked with the work clothes according to an embodiment of the present invention is located at both the upstream and downbound lines at a certain distance from the railway workshop, and detects an approaching signal when detecting an approaching train along the upstream or downlink. A sensor unit provided to be generated; And a main installed in the railway workshop, in close communication with the user terminal to receive the access signal from the sensor unit, to transmit the access signal to the user terminal so that the user terminal senses the approach of the train. It may further include a unit.

In addition, when the main unit receives the approach signal, the operator may operate the warning light and generate a warning sound through the speaker so that the operator recognizes the approach of the train.

In addition, when the main unit receives the access signal from the sensor unit, it transmits an acknowledgment signal for the access signal to the sensor unit, and the sensor unit receives the access signal transmitted to the main unit. If the confirmation signal is not received, an error message may be transmitted to the user terminal.

In addition, the user terminal may request the main unit or the sensor unit, and receive the battery charging state of the main unit or the sensor unit.

In addition, the sensor unit may include a solar panel that supplies power using sunlight.

In this way, in order to visually and easily recognize the approach of the railroad at the railroad workplace where noise is severely generated, the safety of the worker located at the railroad workplace is secured by operating the LED of the work clothes interlocked with the smartphone to warn of the approach of the train. It will be possible to provide a train approach warning system interlocked with work clothes that can be secured.

1 is a view provided to explain a train approach warning system interlocked with work clothes according to an embodiment of the present invention,
2 is a view provided to describe a sensor unit according to an embodiment of the present invention,
3 is a view provided to describe a main unit according to an embodiment of the present invention, and
4 is a view provided to describe a work clothes and a user terminal according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings. The embodiments introduced below are provided as examples for sufficiently conveying the spirit of the present invention to those skilled in the art to which the present invention pertains. The present invention is not limited to the embodiments described below and may be embodied in other forms.

1 is a view provided to describe a train approach warning system interlocked with work clothes according to an embodiment of the present invention, and FIG. 2 is a view provided to describe the sensor unit 100 according to an embodiment of the present invention , FIG. 3 is a diagram provided to describe the main unit 200 according to an embodiment of the present invention, and FIG. 4 is a diagram illustrating the work clothes 300 and the user terminal 400 according to an embodiment of the present invention This is a drawing provided for.

The train approach warning system interlocked with the work clothes of the present invention is provided to ensure the safety of the worker W by allowing the worker W to recognize the approach of the train T in the railway workshop A where noise is severely generated. .

To this end, the train approach warning system interlocked with the work clothes may be configured to include the sensor unit 100, the main unit 200, the work clothes 300, and the user terminal 400.

The sensor unit 100 is provided to detect the entrance of the train. To this end, the sensor unit 100 may be located at two locations of the uplink and the downlink on both sides of the railway workshop A at a certain distance, and the sensor unit 110, the sensor control board 120, the communication unit 130, the sensor It may be configured to include the solar panel 140, the battery 150 and the case 160.

The sensor unit 110 is provided to detect a distance from the train T. For example, the sensor unit 110 may be provided with an infrared sensor to emit infrared rays in a train entrance direction and detect a distance from the train T. In addition, the sensor unit 110 is a vibration sensor, a noise sensor, a geomagnetic sensor is used, it may be provided to detect the entry of the train (T). The sensor unit 100 may detect the approach of the train T by 1.5 km away from the workplace A.

In addition, the infrared sensor can improve the accuracy of the final train detection by inserting a sensor filtering program so that it does not react to changes in the external environment, and receiving and processing other sound and vibration sensors. In addition, the sensor reduction adjustment of the infrared sensor can be set by a program and a GUI capable of setting a distance from 1 to 4M can be applied.

In addition, the infrared sensor module is composed of a transmitter / receiver unit. The infrared ray reflected by the object is detected by the receiver and the amount and time of the infrared ray is sensed by the microcontroller by receiving the infrared distance value from the MCU.

The sensor control board 120 is provided to control the whole of the sensor unit 100. For example, when sensing the entry of the train T from the ascending or descending line through the sensor unit 110, an approach signal may be generated and transmitted to the main unit 200.

In addition, an 8-bit MCU driven at an operating frequency of 40 MHz can be used for the sensor control board 120, and a digital I / O port is used to control the operation of peripheral devices such as the communication unit 130, operation status display, and sensor input. , UART port may be used to process a signal received through the communication unit 130.

In addition, the sensor control board 120 uses a resolution 10-Bit ADC port for input of sound and vibration sensor values, and uses the Watch-dog Timer when the MCU is latched up due to external unstable voltage or noise. It can be designed to enable self-recovery and software recovery.

The MCU of the sensor control board 120 receives and processes a signal from the sensor unit 110 using an Analog to Digital Coverter Port, and may transmit an access signal to the main unit 200 using wired or wireless communication.

In addition, the sensor control board 120 may receive an acknowledgment signal from the main unit 200.

If, although an access signal is generated and transmitted to the main unit 200, an error that the main unit 200 cannot receive, an operator W may be in danger of not recognizing the approach of the train. To prevent this, the sensor control board 120 may receive a confirmation signal that an access signal has been received from the main unit 200.

If the reception confirmation signal is not received, the sensor unit 100 transmits an error message to the user terminal 400 or a separate administrator terminal to secure the safety of the worker W.

Of course, the sensor control board 120 not only transmits an approach signal when approaching the train T, but also periodically transmits a signal to the sensor unit 100 to prevent an error in communication and receives an acknowledgment signal for this. Of course, it is of course possible to prevent communication errors in advance.

Meanwhile, the communication unit 130 is provided for the sensor unit 100 to communicate with the main unit 200, the user terminal 400, and the like. The communication unit 130 may be provided to perform wired communication or wireless communication.

In the case of wireless communication, a CDMA module may be used for remote communication with the main unit 200, and a user define protocol may be used as a communication protocol.

The communication method can be set by a user directly through a GUI, and can be provided to monitor communication status and current communication information.

On the other hand, in the case of wired communication, in order to minimize the problems caused by the long-distance communication line hypothesis (disconnection, noise, line hypothesis, etc.), RS-485 communication method optimized for 2-wire communication is applied in hardware.

And for more intuitive data processing, 1-bit data processing using 2-wire is also possible. Line-1 is set to Ground, Line-2 is set to Data line, and Data Line is used only as High or Low signal.

When using the RS-485 communication method, the user-defined protocol is used in the same way as the protocol used for wireless communication.

The maximum communication distance of wireless communication is theoretically unlimited where there is a mobile phone communication base station, the maximum setting distance of wired communication is 1.2 km, and if the amplifier is installed at an intermediate point, the maximum communication distance can be increased. Wired / wireless communication speed can be designed to reduce the error rate of communication by selecting between 9600bps ~ 19200bps.

The sensor solar panel 140 is provided to supply power to the sensor unit 100 using sunlight.

Since the sensor unit 100 is not smoothly supplied with power from the outside, the charging battery 150 may be built in, and the solar cell charging using the sensor solar panel 140 charges the battery 150 and simultaneously the sensor unit ( 100) can be driven.

Here, the battery 150 uses a Lead Acid Chemistries Battery suitable for industrial use, and the capacity is 5A or more and less than 10A, so that even a fully charged battery can be driven continuously for 70HR or more. The charging method of the Lead Acid Chemistries Battery is CCCV (Constant Current Constant Voltage) method, and as a safety specification, the PCM (Protection Circuit Module) is built into its own main board, and in order to increase the practicality, it is prepared for situations where solar power cannot be generated. It can be configured to be charged by using an AC adapter.

The case 160 is provided to safely store a main circuit, an accessory device, and a power supply device. For example, as illustrated in FIG. 2, the sensor control board 120, the battery 150, and the like may be stored.

In addition, the case 160 may be designed in a sturdy closed structure so that the system can be stably driven without rain or dust impregnating therein even in external climatic conditions such as rain.

On the other hand, when the approach of the train T is detected, the main unit 200 warns the worker W using vision and hearing, and transmits an approach signal to the user terminal 400, so that the worker's work clothes 300 Edo is provided to make the LED work.

To this end, the main unit 200 includes a main control board 210, a warning light 220, a speaker 230, a communication unit 240, a main solar panel 250, a battery 260 and a case 270 Can be configured.

The main control board 210 is provided to control the whole of the main unit 200.

For this, the main control board 210, like the sensor control board 120, uses an 8-bit MCU driven at an operating frequency of 40 MHz, a communication unit 240, a TOUCH TFT LCD display, a speaker 220, a warning light 230 Digital I / O ports are used to control the operation of peripheral devices. The UART port may be used to process a signal received through the communication unit 240.

In addition, the main control board 210 may be designed to enable self-recovery by using a watch-dog timer when the MCU is latched up due to external unstable voltage or noise, and software recovery is also possible.

In addition, the main control board 210 uses a power supply with a capacity of 20 Ah to enable smooth operation of high output devices such as a warning light 230 or a speaker 240, and the power supply is an input voltage AC 100 ~ 220V It uses high power SMPS of 50 / 60Hz, output power of 100W or more, and can incorporate safety protection functions such as over voltage protection, over current protection, and short circuit protection.

The wireless communication and wired communication methods use wired / wireless transmission / reception technology such as an MCU of the sensor control board 120.

In addition, when the approach signal is received from the sensor unit 100, the main control board 210 may operate the warning light 220 for visual warning and the speaker 230 for audible warning.

In addition, as described above, the main control board 210 may generate an acknowledgment signal and re-deliver it to the sensor unit 100 when an approach signal is received from the sensor unit 100 to prevent an error in communication. .

As the warning light 220, an LED warning light with low visibility, durability, and low power consumption may be used.

And the speaker 230 is provided to generate a warning sound. The speaker 230 outputs a maximum of 90 dB or more, uses a waterproof device, enables volume control and outputs of two or more types of siren, and the field worker (W) can reliably recognize the noise of the railway site. So apply directional speakers.

The communication unit 240 is provided to communicate with the sensor unit 100, the user terminal 400, and the like.

In the case of wireless communication, a CDMA communication module is used for remote communication with the sensor unit 100, and a user define protocol may be used as a communication protocol.

The communication method can be set by the user directly through the GUI, and the communication status and current communication information can be monitored.

In the case of wired communication, RS-485 communication method optimized for 2-wire communication is applied in hardware to minimize problems caused by the hypothesis of long-distance communication lines (disconnection, noise, and line hypothesis). When using the RS-485 communication method, the user-defined protocol is used in the same way as the protocol used for wireless communication.

The maximum communication distance of wireless communication is theoretically unlimited where there is a mobile phone communication base station, the maximum setting distance of wired communication is 1.2 km, and if the amplifier is installed at an intermediate point, the maximum communication distance can be increased. Wired / wireless communication speed is selected between 9600bps ~ 19200bps to reduce the error rate of communication.

The main solar panel 250 is provided to supply power to the main unit 200 using sunlight.

The main unit 200, like the sensor unit 100, may have a built-in battery 260, charge the battery 260 by solar charging using the main solar panel 250, and simultaneously drive the main unit 200 Make it possible.

Here, the battery 260 is provided to supply power to the main unit 200.

The battery 260 uses a Lead Acid Chemistries Battery suitable for industrial use, and the capacity is 5A or more and 10A or less, so that even a fully charged battery can be continuously driven for 70HR or more.

The charging method of the Lead Acid Chemistries Battery is CCCV (Constant Current Constant Voltage) method, and as a safety specification, the PCM (Protection Circuit Module) is built into its own main board, and in order to increase the practicality, it is prepared for situations where solar power cannot be generated. It is configured to be charged by using an AC adapter.

Power may be supplied to the main unit 200 through the main solar panel 250 and the battery 260.

The case 270 is provided to accommodate the main circuit unit and peripheral devices.

For example, as shown in FIG. 3, the main control board 210 and the battery 260 may be stored, and may be provided in a size of 40 cm in height, 30 cm in width, and 20 cm or more in depth so that they can be accommodated abundantly.

Incidentally, the main unit 200 may include a touch-type TFT LCD display (not shown) including a back light function to display to the user the overall operating state and setting state of the main unit 200.

Through the display (not shown), it is possible to check the state of the sensor unit 100 and the main unit 200, the communication and communication data with each system, and the system setting status, and the user directly controls the notification volume and wireless / wired communication. Make settings possible.

Meanwhile, the workwear 300 is provided to allow the worker W to recognize the approach of the train T. To this end, the workwear 300 may be configured to include a terminal pocket 310 and warning means. The warning means is provided to inform the approach of the train, and the operator W can recognize the approach of the train through various warning means such as visual means, audible means, and tactile means. In the present invention, an example in which the LED 320 is provided as a warning means will be described.

The work clothes 300 may be safety vests worn at the work site, and, of course, clothes worn by the worker W may be jumpers or pants.

The terminal pocket 310 is provided to accommodate the user terminal 400 and connect the work clothes 300 and the user terminal 400. For example, as illustrated in FIG. 4, the terminal pocket 310 may be formed to accommodate the user terminal 300 on the chest portion of the workwear 300 such as a safety vest.

In addition, the terminal pocket 310 may be configured to include a connector 311 and a pocket plug 312.

The connector 311 may be wiredly connected to the LED 320 through the inside of the work clothes 300, and may be located at the bottom inside the terminal pocket 310 so that the user terminal 300 such as a smartphone is connected. Therefore, when the user terminal 400 is stored in the terminal pocket 310, a connector 311 may be inserted into the connection portion at the bottom of the user terminal to be connected.

The connector 311 is provided to correspond to the type of the user terminal 400, such as an Android USB micro 5 pin terminal, an Apple 8 pin terminal, a 30 pin terminal, or an Android new USB 3.1 C type connector, and the user terminal 400 can be directly connected. , A USB port may be provided so that the user terminal 400 is connected through various cables of the aforementioned type.

Incidentally, although an example in which the user terminal 400 is wired through the connector 311 to supply power is provided, the user terminal 400 may communicate wirelessly with the workwear 300.

For example, the user terminal 400 allows wireless communication with the workwear 300 to transmit a control signal, and when the approach of the train T is detected through the sensor unit 100, the location of the railway station A A control signal may be transmitted to a plurality of work clothes, so that a plurality of warning means such as the LED 320 may be collectively controlled. Through this, if only one of the workers has the user terminal 400, all workers in the workshop A can recognize the approach of the train.

The pocket stopper 312 is provided to prevent the user terminal 400 from being detached from the terminal pocket 310.

For example, as shown in Figure 4, the pocket stopper 312 is fixed to the upper side of the terminal pocket 310, the other side is provided to be coupled to the Velcro provided on the top of the terminal pocket 310 Can be.

Through the pocket stopper 312, even when the operator is working, it is possible to prevent the user terminal 400 from flowing down.

On the other hand, the user terminal 400 is provided to receive an access signal from the main unit 200, to control the warning means provided in the work clothes 300.

The user terminal 400 may be provided as a smart device such as a smartphone or tablet.

In addition, power may be supplied to the workwear 300 through the user terminal 400. For example, when the worker W puts the portable user terminal 400 in the terminal pocket 310 and connects it to the connector 311 at the bottom of the terminal pocket 310, it connects with warning means such as an LED 320. Power supply.

In addition, the user terminal 400 may be provided to communicate short-range with the main unit 200. Through short-range communication such as Bluetooth, the main unit 200 may be communicatively connected, and when an access signal is received from the main unit 200, the LED 320 of the connected work clothes 300 may be controlled to operate. It goes without saying that wireless telecommunications other than short-range communication can be used.

A dedicated application may be installed in the user terminal 400 to connect the operator W to communicate with the main unit 200 or to manually control the LED 320. When the dedicated application is operated, when the user terminal 400 is located in the workshop A, it can be automatically connected to the main unit 200.

In addition, the user terminal 400 may control the LED 320 to selectively operate by recognizing the approach location of the train T.

For example, the user terminal 400 may receive the direction information of the train T approaching from the ascending or descending line from the main unit 300, dividing the work clothes 400 left and right, and LED located on the left side You can operate or control the LED located on the right to operate. In addition, the user terminal 400 recognizes the rotation through the gyro sensor, so that, regardless of the direction of the operator W, when the train approaches from the ascending line, the LED in the ascending direction may operate, and the train approaches from the descending line If it can be controlled to operate the LED in the downward direction.

In addition, the user terminal 400 may be provided to communicate with the main unit 200 or the sensor unit 100 to check the battery status, charging rate, etc. of the main unit 200 or the sensor unit 100. .

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is usually in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications can be made by those having knowledge of, and these modifications should not be individually understood from the technical idea or prospect of the present invention.

100: sensor unit
110: sensor unit 120: sensor control board
130: communication unit 140: sensor solar panel
150: battery 160: case
200: main unit 210: main control board
220: warning light 230: speaker
240: communication unit 250: main solar panel
260: battery 270: case
300: work clothes 310: terminal pocket
311: connector 312: pocket stopper
320: LED 400: User terminal
A: Workshop T: Train
W: Worker

Claims (6)

A work clothes worn on a worker located in a railroad workshop, and provided to warn the worker through a warning means when a train approaches the railroad workshop; And
A user terminal that is provided to communicate with the work clothes by wire or wireless, and transmits a control signal to the work clothes to control the warning means when the approach of the train is detected;
Train approach warning system interlocked with work clothes comprising a.
According to claim 1,
The work clothes are provided with a connector to be wired to the user terminal, and when the user terminal is wired, a train approach warning system interlocked with the work clothes, characterized in that power is supplied from the user terminal.
According to claim 2,
The work clothes, so that the user terminal is accommodated, to prepare a terminal pocket of the size of the user terminal, the user terminal is connected through the connector located on the inner bottom of the pocket, the train access linked to the work clothes, characterized in that connected to the work clothes Alarm system.
According to claim 1,
The work clothes, by providing an LED as the warning means, when the control signal is received, operating the LED to visually warn the train approach warning system interlocked with the work clothes, characterized in that.
According to claim 1,
The user terminal transmits the control signal in wireless communication with the work clothes, and when the approach of the train is detected, the control signals are transmitted to a plurality of work clothes located in the railroad workshop to control a plurality of warning means in a batch. Train approach warning system interlocked with work clothes, characterized in that possible.
According to claim 1,
A sensor unit which is located on both sides of an upward and downward line at a distance from the railway workshop, and is configured to generate an access signal when detecting an approaching train along the upward or downward line; And
The main unit installed in the railway workshop, in close communication with the user terminal and receiving the access signal from the sensor unit, transmits the access signal to the user terminal so that the user terminal detects the approach of the train Train approach warning system interlocked with work clothes, characterized in that it further comprises.

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