KR20110044088A - Apparatus for transmitting a signal of distress and the controlling method thereof - Google Patents

Abstract

PURPOSE: An apparatus for transmitting a distress signal and a controlling method thereof are provided to transmit a distress signal if a given material is seawater. CONSTITUTION: An apparatus for transmitting a distress signal comprises a first housing, a second housing, and a communications unit(300). The first housing is formed in a cylinder form and comprises an inner space. One side of the second housing is fixed and the other side of the second housing is inserted into the inner space. The second housing makes a part of the inner space vacuum at a tension below a predetermined value. The communications unit is separated from the second housing along with the first housing if a tension over the predetermined value is applied by the occurrence of emergency. After the separation, if seawater is sensed in the inner space, the distress signal is transmitted.

Description

Apparatus for Transmitting a Signal of Distress and the controlling Method

The present invention relates to a distress signal firing apparatus, and more particularly, to a distress signal firing apparatus capable of detecting a distress occurrence and firing a distress signal and a control method thereof.

Recently, ships have been using a distress communication device that automatically sends a distress signal for distress in case of a disaster such as overturning or sinking and informs the position of distress.

Typically, EPIRB (Emergency Position Indicating Radio Beacon) is released when a certain hydraulic pressure is applied according to the occurrence of distress is released by the release of the hydraulic pressure release device is automatically released from the ship to the surface of the distress signal.

However, the conventional EPIRB is simply in the form of a water switch, and even when not in distress, when moisture is introduced into two nodes, the supply voltage is output and the EPIRB main body is easily launched.

Moreover, some ships using the EPIRB conventionally take measures to fix the EPIRB main body with strings, tapes, paints, etc., and the EPRIB has fallen into paperless materials that do not operate even during distress.

In order to solve the above problems, it is an object of the present invention to provide a distress signal firing apparatus and a control method for firing a distress signal upon detecting the inflow of sea water and changes in tension.

Another object of the present invention is to provide a distress signal firing apparatus and a control method thereof capable of firing a distress signal by determining whether a substance introduced into the sea is seawater.

Distress signal firing apparatus according to an aspect of the present invention, the first housing having an internal space configured in the form of a cylinder; A second housing fixed to the ship and having the other surface configured to fit into the inner space into the inner space to make a part of the inner space into a vacuum at a tension less than a predetermined tension; And a distress communicator that transmits a distress signal when a tension of more than a predetermined tension is applied from the second housing together with the first housing according to the occurrence of distress. It is characterized by including.

Distress signal firing apparatus according to another aspect of the present invention, the detection node exposed in the sensing space; A determination unit comparing the resistance value detected by the detection node with a threshold value and determining whether seawater is introduced into the detection space; And a sending unit for transmitting a distress signal when it is determined that the seawater is introduced by the determination unit.

In the operation method of the distress signal firing apparatus according to another aspect of the present invention, in the operation method of the distress signal firing apparatus is fixed to the vessel by the hydraulic cover, a tension or more than a predetermined tension is applied to the hydraulic cover in accordance with the occurrence of distress If so, the step of introducing a material containing sea water into the inner space of the hydraulic cover; Determining whether the material introduced into the internal space is seawater; And transmitting a distress signal if the substance introduced into the judgment result is seawater.

According to the present invention, unlike the conventional water switch type EPIRB, when the tension rises above a certain tension, it is separated from the ship, it is also determined whether the material introduced into the seawater according to the separation and distress occurred when the sea water By determining that the distress signal is transmitted, the accuracy and reliability of driving can be improved.

In general, water becomes a conductor whose resistance varies depending on the substance dissolved in electricity. That is, when electricity flows, seawater does not exceed 40 kW, and rainwater does not fall below 200 kW, and the present invention can improve the accuracy of distress signal transmission using these properties as follows.

First, a distress signal firing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. 1 is an external configuration before distress of the distress signal firing apparatus according to an embodiment of the present invention, Figure 2 is an external configuration after the distress of the distress signal firing apparatus according to an embodiment of the present invention.

As shown in Figures 1 and 2, the distress signal firing device 10 according to an embodiment of the present invention includes a hydraulic cover 200 and the distress communicator 300.

The hydraulic cover 200 protects the sensing space (see the area indicated by… in Fig. 1) with a vacuum at a tension less than a certain tension in which the distress does not occur, and prevents other substances including seawater from entering. When a tension of more than a predetermined tension is applied, the sensing space (see the area indicated by… in FIG. 2) is not protected by vacuum so that seawater or other substances can be introduced.

The hydraulic cover 200 includes a first housing 210 and a second housing 220, which will be described below.

The first housing 210 is configured in a cylinder shape to have a sensing space therein, and is coupled with the distress communicator 300 regardless of whether or not distress occurs.

One surface 221 of the second housing 220 is fixed to the ship through a screw or the like, the other surface 222 is configured to be fitted into the first housing 210 (for example, in the form of a pistol fitted to the cylinder). Here, when the second housing 220 is fitted into the first housing 210, the rubber film 223 or the like is provided on the other surface 222 so that a part of the internal space of the first housing 210 may be maintained in a vacuum state. It may include.

The other surface 222 of the second housing 220 is inserted into the first housing 210 when a tension of less than a predetermined tension is applied because distress does not occur, thereby making a part of the internal space (that is, the sensing space) into a vacuum. When a tension or more than a predetermined tension is applied according to the distress occurrence, the sensor is separated from the first housing 210 so that the sensing space is not protected by a vacuum so that a substance such as seawater flows into the sensing space.

When the distress communicator 300 exposes the detection node 310 to the sensing space of the hydraulic cover 200 to determine whether seawater flows into the resistance value detected through the detection node 310, Send out a distress signal. In this case, the detection node 310 may be connected to the internal circuit (see FIG. 3 below) of the distress communicator 300 by a thick twisted pair wire 320.

A detailed configuration of the distress communicator 300 will be described later with reference to FIG. 3. Hereinafter, the structure of the distress communicator 300 and the hydraulic cover 200 will be described by dividing it before and after distress.

As shown in FIG. 1, when distress occurs and a tension less than a predetermined level is applied, the distress communicator 300 is fixed to the ship by being coupled with the second housing 220 together with the first housing 210.

As shown in Figure 2, when a tension or more than a predetermined tension is applied in accordance with the occurrence of distress, the distress communicator 300, along with the first housing 210, the second housing ( 220) and detached or fired from the vessel. Thereafter, when the distress communication unit 300 detects that seawater is introduced into the sensing space, the distress communication unit 300 determines that distress has occurred and transmits a distress signal.

In FIG. 2, the distress communicator 300 is driven in a state coupled with the first housing 210 regardless of whether the distress occurs, and when the distress occurs, the distress communicator 300 coupled with the first housing 210 has a second housing. Although the case where the operation is completely separated from the 220 has been described as an example, the distress communicator 300 is a distress communicator 300 from the second housing 220 according to the type of distress and the configuration of the distress signal firing device 10. It may be operated without being completely separated, or may be operated separately from the first housing 210.

Hereinafter, with reference to Figure 3 will be described in detail the configuration and operation principle of the distress communicator according to an embodiment of the present invention. 3 is a circuit diagram illustrating a distress communicator according to an embodiment of the present invention.

As shown in FIG. 3, the distress communicator 300 includes at least one detection node 310, a power supply unit 320, a plurality of determination units 330, and a transmitter 340.

Each detection node 310 is composed of, for example, two conductive nodes exposed to the sensing space, and when a substance is introduced into the sensing space, the two nodes are short-circuited by the introduced substance to detect resistance values between the two nodes. Can be.

The power supply unit 320 blocks or outputs the driving voltage according to the resistance value detected by the detection node 310 connected thereto.

For example, if the resistance value sensed by the detection node 310 is less than a detection threshold value (eg, 200 kW), the power supply unit 320 may output a driving voltage.

The plurality of determination units 330 operate as a driving voltage is supplied from the power supply unit 320 or another device, and the resistance value and the determination threshold value (eg, detected by the detection node 310 connected to each determination unit 330) are provided. , 20㏀) to determine whether the material entering the sensing space is seawater.

The plurality of determination units 330 are provided at a plurality of positions of the distress communication unit 300, respectively, to determine whether the introduced material is seawater one or more times, and transmit the determination result to the transmission unit 340.

The transmitting unit 340 comprehensively determines the results determined by the plurality of determining units 330 by, for example, an AND operation, and transmits or does not transmit the distress signal according to the comprehensive determination result.

That is, the transmitter 340 transmits a distress signal when it is determined by the plurality of determination units 330 that the resistance value detected by the detection node 310 is caused by the inflow of seawater. Even if the determination unit 330 does not determine that the resistance value detected by the detection node 310 is caused by the inflow of seawater, the determination unit 330 may not transmit the distress signal.

Meanwhile, in FIG. 3, the detection node 310 is provided in the power supply unit 320 and each determination unit 330 as an example, but the detection node 310 includes the plurality of determination unit 330 and the power supply unit 320. Only one may be provided for). However, the operation of the distress communicator may be more accurate than the distress communicator having only one detection node 310.

In addition, in FIG. 3, the power supply unit 320 is turned on / off according to the resistance value sensed by the detection node 310 as an example. The driving voltages may be supplied to the plurality of determination units 330 at all times.

Thus, the distress signal firing apparatus 10 of the present invention is separated from the vessel when the tension is higher than a certain tension, and also determines whether the material introduced into the sea according to the separation is distress when the sea water By determining and transmitting the distress signal, the accuracy and reliability of the driving can be improved.

Hereinafter, the detailed configuration of the distress communicator 300 will be described with reference to FIGS. 4 to 5. 4 is a view showing a power supply unit 320 according to an embodiment of the present invention, Figure 5 is a view showing a determination unit 330 according to an embodiment of the present invention.

As shown in FIG. 4, the power supply unit 320 includes a plurality of differential amplifier circuits OP1 and OP2 that amplify with an amplification by the detection node 310 and the fixed resistors R ₄₂ , R ₄₃ , and R ₄₄ . do.

The first differential amplifier circuit 321 outputs V ₁ amplified by the input voltage V by the ratio of R ₄₂ and the resistance value R _DT sensed by the detection node 310 as shown in Equation 1 below. .

That is, if the resistance value R _DT sensed by the detection node 310 is less than a predetermined value as the substance is introduced into the sensing space, the first differential amplifier circuit 321 may have a predetermined value (R ₄₂ >> R _DT). ) -V ₁ output.

The outputs the second differential amplifier circuit 322 amplifies the V ₂ R ₄₄ and R ratio as an input voltage of ₄₃ V ₁ as shown in equation (2) to the receiving V _1.

At this time, since R ₄ = R ₃ , the second differential amplifier circuit 322 outputs a voltage V ₁ having the same magnitude as -V ₁ but having the opposite sign.

4 illustrates an example in which a plurality of determination units 330 are designed to require voltages of + V ₁ and -V ₁ , respectively, and the power supply unit 320 includes a plurality of determination units 330. Of course, it can be designed in various ways depending on the circuit or the driving voltage.

As shown in FIG. 5, each determination unit 330 is driven when V ₁ and -V ₁ are input, and includes a plurality of amplifying circuits 331, 332, 333, and 334 and a detection node 310.

The first amplifying circuit 331 receives V ₁ and outputs V ₅₁ calculated according to Equation 3 below.

In other words, the first amplifier circuit 331 to half of the voltage V ₁ and outputs the reference voltage of (-V _1/2) of the fourth amplifier circuit 334.

The second amplifier circuit 332 receives V ₅₁ and outputs V ₅₂ calculated according to Equation 4 below. At this time, R ₅₄ is a resistance for determining whether the resistance value sensed by the detection node 310 is due to seawater, and is set to twice the seawater resistance value.

Therefore, if the resistance value detected by the detection node 310 is due to seawater, the second amplifying circuit 332 receives -V _1/2 and amplifies -2 (= 40k / 20k) times and outputs V ₁ . , detection node 310 as long as the resistance value due to the rain water, detected by and -V _1/2 receives the outputs of -0.2 (= 40k / 200k) times the amplification V _1/10.

The third amplifier circuit 333 receives V ₅₂ and outputs V ₅₃ calculated by Equation 5 below. At this time, since R ₅₅ and R ₅₆ have the same resistance, the third amplifier circuit 333 inverts the sign of the input voltage and outputs the inverted signal.

That is, the third amplifier circuit 333 outputs a long as -V ₁ is the resistance value detected by the detection node 310 due to sea water, as long as it outputs a -V _1/10 due to rain.

A fourth amplifier circuit 334 receives the ₅₃ V as shown in Equation (6) below as compared with the V ₅₁ V ₅₃ V is greater than _51, the fourth amplifier circuit (334) outputs a drive voltage -V ₁ If V ₅₃ is less than V ₅₁ , the + driving voltage V ₁ of the fourth amplifier circuit 334 is output.

That is, the fourth amplifier circuit 334 outputs -V ₁ if the resistance value sensed by the detection node 310 is caused by seawater, and outputs V ₁ if it is caused by rainwater.

Thereafter, the output of the fourth amplifying circuit 334 is input to the transmitting unit 340, and is used for outputting the distress signal according to the distress occurrence.

Meanwhile, the plurality of determination units 330 may be designed as shown in FIG. 5 and may be configured as a Schmitt trigger circuit of another type.

However, the transmitter 340 determines whether distress occurs by combining the output voltages of the plurality of determination units 330, and outputs or does not output a distress signal, so that the plurality of determination units 330 are distressed and distressed. When not generated, the output unit 340 outputs different first voltages and second voltages to determine whether distress has occurred through different output voltages.

In addition, the determination unit 330 of FIG. 5 is a case of outputting the + V ₁ and -V _1, the other voltage of each code sign is based on whether the water receives the other drive voltage + V ₁ and -V ₁ Examples For example, the driving voltage of the determination unit 330 and the first voltage and the second voltage of the determination unit 330 may have different magnitudes and may be one sign.

Hereinafter, a method of controlling a distress signal firing apparatus according to an embodiment of the present invention will be described with reference to FIG. 6. 6 is a flowchart illustrating a control method of a distress signal firing apparatus according to an embodiment of the present invention.

Hereinafter, a case in which the distress signal firing apparatus is composed of the hydraulic cover 200 and the distress communicator 300 as shown in FIG. 1 will be described with reference to the flowchart of FIG. 6.

Referring to FIG. 6, when a tension or more than a predetermined tension is applied according to the occurrence of distress (S610), a material including seawater flows into an internal space of the hydraulic cover 200 (S620).

Specifically, when a tension or more than a predetermined tension is applied, the distress communicator 300 is fired or separated from the ship, and the internal space of the hydraulic cover 200, which is kept in a vacuum state as it is fired or separated from the ship, into a non-vacuum state. Change and, accordingly, material containing sea water is introduced.

Subsequently, the distress communicator 300 determines whether the material introduced into the internal space is seawater (S630).

At this time, the distress communicator 300 is exposed to the internal space and determines whether the material introduced into the resistance value detected by the detection node 310 consisting of two nodes whether the sea water, and outputs different voltages according to the determination result can do. In detail, the distress communicator 300 detects a resistance value between two nodes according to the introduced material, compares the detected resistance value with the determination threshold value, and if the detected resistance value is less than the determination threshold value, the introduced substance. It can be judged that this is seawater, and it can be judged that it is not seawater in other cases.

The distress communicator 300 transmits a distress signal when the substance introduced into the distress water is determined (S640). In this case, the distress communicator 300 may or may not output the distress signal according to the value of the voltage that is differently output depending on the determination result.

Meanwhile, the distress communication device 300 may not output the driving voltage for determination or transmission before distress occurs, and may output the driving voltage when a substance containing seawater flows into the internal space.

Thus, the distress signal firing apparatus 10 of the present invention is separated from the vessel when the tension is higher than a certain tension, and also determines whether the material introduced into the sea according to the separation is distress when the sea water By determining and transmitting the distress signal, the accuracy and reliability of the driving can be improved.

While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

1 is an external configuration of the distress signal firing apparatus according to an embodiment of the present invention before distress.

Figure 2 is an external configuration after the distress of the distress signal firing apparatus according to an embodiment of the present invention.

3 is a circuit diagram showing a distress communicator according to an embodiment of the present invention.

4 is a view showing a power supply according to an embodiment of the present invention.

5 is a view showing a determination unit according to an embodiment of the present invention.

6 is a flowchart illustrating a method of controlling a distress signal firing apparatus according to an embodiment of the present invention.

Claims (18)

A first housing having a cylinder shape and having an internal space; A second housing fixed to the ship and having the other surface configured to fit into the inner space into the inner space to make a part of the inner space into a vacuum at a tension less than a predetermined tension; And A distress communication device that transmits a distress signal when the tension is applied to a predetermined tension or more according to the occurrence of distress and is separated from the second housing together with the first housing. Distress signal firing device comprising a. The distress communicator of claim 1, The distress signal firing device which is fired or separated from the ship together with the first housing upon occurrence of the distress. The distress communicator of claim 1, A detection node exposed to the internal space; A power supply unit which blocks or outputs a driving voltage according to a resistance value detected by the detection node; A determination unit determining whether seawater has flowed into the internal space by using the resistance value detected by the detection node when the driving voltage is supplied; And If the seawater is introduced as a result of the determination, the transmitter for transmitting the distress signal Distress signal firing device comprising a. The method of claim 3, wherein the determination unit, Distress signal firing device to determine whether the seawater flows into the sensing space by comparing the resistance value and the threshold value sensed by the detection node. The method of claim 4, wherein the determination unit, A schmitt trigger circuit for outputting a first voltage and a second voltage when the sensed resistance value is less than or equal to a threshold value, respectively; And the transmitting unit transmits the distress signal when the first voltage is output. The method of claim 3, wherein the power supply unit, And discharging the driving voltage at all times and supplying the driving voltage irrespective of the resistance value detected by the detection node. A detection node exposed in the sensing space; A determination unit comparing the resistance value detected by the detection node with a threshold value and determining whether seawater is introduced into the detection space; And If it is determined that the seawater is introduced by the determination unit, the transmission unit for transmitting a distress signal Distress signal firing device comprising a. The method of claim 7, wherein the detection node, Comprising two nodes spaced apart from each other in the sensing space, Distress signal firing device having a resistance value as the material is introduced into the sensing space to short the two nodes. The method of claim 7, wherein the determination unit, A schmitt trigger circuit for outputting a first voltage and a second voltage, respectively, when the resistance is less than or equal to a threshold; And the transmitting unit transmits the distress signal when the first voltage is supplied. According to claim 7, If the plurality of determination unit is provided, The detection node is provided for each of the plurality of determination units, The discharging unit, the distress signal firing apparatus to determine whether the inflow of sea water by combining the determination results by the plurality of determination unit. The method of claim 7, wherein A hydraulic cover that protects the sensing space with a vacuum at a tension below a certain tension, which is a tension without distress. Distress signal firing device further comprising. 10. The method of claim 9, The hydraulic cover is a distress signal firing device that does not protect the sensing space with a vacuum when a tension greater than the predetermined tension in accordance with the occurrence of distress, so that seawater or other substances flow into the sensing space. The method of claim 9, wherein the hydraulic cover, A first housing configured to have a cylindrical shape and having the sensing space therein; And The second surface is fixed to the vessel, the second housing to make a part of the sensing space into a vacuum by inserting one surface consisting of a shape fitted into the sensing space into the sensing space Distress signal firing device comprising a. In the operation method of the distress signal firing device fixed to the vessel by the hydraulic pressure cover, When a tension or more than a predetermined tension is applied to the hydraulic cover according to the occurrence of distress, the step of introducing a material containing sea water into the inner space of the hydraulic cover; Determining whether the material introduced into the internal space is seawater; And Transmitting a distress signal when the introduced substance is seawater as a result of the determination; Operation method of the distress signal firing apparatus comprising a. The method of claim 14, wherein the step of introducing, Launching or separating from the vessel when tension above the predetermined tension is applied; And Changing the internal space to a non-vacuum state according to the firing or separation; Method of operating a distress signal firing device that includes. The method of claim 14, wherein the determining comprises: Shorting two nodes exposed to the internal space by the introduced material; Sensing a resistance value between the two nodes; And Comparing the sensed resistance with a threshold to determine whether the introduced material is seawater Method of operating a distress signal firing device that includes. The method of claim 16, wherein the determining step, If the sensed resistance is less than a threshold, determining that the introduced material is seawater Method of operating a distress signal firing device that includes. The method of claim 14, When the material containing the sea water flows into the internal space, further comprising the step of outputting a driving voltage, The determining step, the operation method of the distress signal firing device is to receive the driving voltage to perform the determination.

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