KR101214763B1 - Remote terminal unit having a impact sensing function - Google Patents

Abstract

PURPOSE: A remote terminal device with a function for detecting impact is provided to calculate external impact force based on pressure values and pressure change detecting from a pressure sensor which is contacted to a coiled elastic body. CONSTITUTION: A remote terminal device with a function for detecting impact comprises a sensor arranging part, a working bar, a connection bar, and a control part(140). One end of the sensor arranging part is connected to a wall arranged in a protective case. An internal guide hole is formed in a body of the sensor arranging part. A pressure sensor and a contact sensor are arranged in a sealed side of the internal guide hole. The working bar is movably inserted in an opening end of the internal guide hole so that one end of a coiled elastic body and part of a body of the working bar can be contacted to elastically support the working bar. One end of the connection bar is connected to one end of the working bar. The other end of the connection bar is connected to a pipe bracket fixed in a gas pipe. If the coiled elastic body is compressed by gap reduction between the pressure sensor and the working bar, the control part receives the pressure change of the pressure sensor to calculate external impact force and determines whether or not to block gas with a safety blocking device based on the calculated impact force.

Description

Remote terminal unit having a shock detection function {Remote Terminal Unit Having a Impact Sensing Function}

The present invention relates to a remote terminal device having a function of sensing a shock transmitted to a protective case in a gas constant pressure installation, and more specifically, by detecting an external shock while preventing facility damage of the gas constant pressure from an external shock such as a vehicle collision. The present invention relates to a remote terminal device having an impact detection function capable of operating an emergency shutoff device of a regulator or performing a subsequent action according to an impact force.

In general, GAS GOVERNOR is a key device installed in the gas pipe line, and it performs the function of reducing the pressure from the high pressure to the medium pressure and the low pressure to the low pressure by matching the pressure of the gas supplied from the supplier to the user. will be.

As shown in FIG. 7, the gas constant pressure regulator includes a filter 10 and a safety shutoff valve 20 (SSV) between gas pipes 11 and 12 buried underground and exposed to the ground. And equipped with an adjuster 30 is provided in the inner space of the protective case 50 is installed on the ground.

In addition, the remote terminal device 40 is installed at a separate place adjacent to the gas pressure regulator or installed at one side of the protective case 50 so as to check the operating state of the gas pressure regulator 1 at a remote location and perform remote control. do.

The remote terminal unit RTU (Remote Terminal Unit) receives a measurement value from the sensor for measuring the pressure of the gas pipe in the gas pressure regulator from time to time, and transmits the received information to the server wirelessly and receives a control signal from the server and It performs a function of communicating remotely, and transmits a blocking signal to a safety shut-off device which is a shut-off valve installed in the gas pipe to block the gas flow path of the gas pipe when the pressure rise of the gas pipe.

Accordingly, when an abnormal pressure is sensed in the gas pipe, the gas pipe may be blocked to prevent an accident caused by an increase in the secondary gas pressure.

On the other hand, gas supply and management services have been provided only in large population areas such as apartment complexes due to excessive facility construction costs and safety reasons due to expensive medium pressure piping. In the settlement districts, requests for supply of city gas have continued to occur.

Accordingly, in order to expand the gas supply to the unsupply area where gas supply has not been made, related laws and regulations are being made to enable gas supply using a gas constant pressure regulator such as a small area pressure regulator.

However, the gas pipe provided in the gas regulator having a small supply capacity has a smaller pipe outer diameter and weak durability compared to the gas pipe provided in the gas regulator having a large supply capacity. The management of the same safety accident is urgently needed.

In addition, there is a problem that the gas static pressure facility is installed in the vicinity of the road frequent driving roads are exposed to accidents such as vehicle collision due to the departure of the vehicle.

Korean Patent Registration No. 10-0495537 discloses a remote monitoring of the state of a city gas pipe connected to a gas receiver from a constant pressure regulator that regulates the city gas supply pressure among gas pipe networks, and prevents a large accident such as damage to the pipe and leakage of water. The piping status remote monitoring system is started.

However, in order to measure the pipe condition, such a pipe condition remote monitoring system requires a gas detector and a vibration detector to be installed in the pipe before buried in addition to the pipe buried, and buried under the ground together with the pipe. There is a problem in that it is difficult to maintain and manage the sensing devices such as detectors and gas detectors.

In addition, when the protective case 50 for protecting the gas pipe exposed to the ground is exposed to the ground when the protective case 50 of the gas pressure regulator installed in the frequent movement of the vehicle collides with the vehicle, There is no monitoring system that can prevent the gas pipe exposed to the ground due to the impact force generated by the collision and prevent the risk of gas leakage through the damaged part.

In addition, as the safety awareness of the residents of the gas supply area for the gas regulator installed on the ground is exposed to the outside, the necessity of increasing the reliability of the safety management and monitoring system of the gas regulator is emerging.

The present invention is to solve the conventional problems as described above, the object is to detect the impact force caused by a collision, such as a vehicle collision to the protective case to protect the gas constant pressure exposed to the ground, and to follow up according to the detected impact force To provide a remote terminal device with a shock detection function to increase the safety and reliability to the gas static pressure facility by performing a variety of.

In order to achieve the above object, the present invention receives a pressure measurement value of the gas pipe in the gas constant pressure facility having a filter and a safety shut-off device in the inner space of the protective case between a pair of gas pipes exposed from the basement to the ground. In the remote terminal device for transmitting the received information to the server to receive a control signal from the server, and transmits a signal for blocking the flow path of the gas pipe, one end is connected to the wall provided in the protective case, once in the body A sensor arranging unit forming the opened guide inner hole and fixedly arranging a pressure sensor and a contact sensor on a sealing side of the guide inner hole; And a stopper disposed at a long hole formed through the outer surface of the sensor arrangement portion so as to communicate with the guide inner hole, and having a coil-like elastic body having one end in contact with the pressure sensor, and movable through the opening end of the guide inner hole. An insertion bar arranged to be elastically supported by contacting the other end of the coil elastic body with a body part; One end is assembled to one end of the operation bar, and the other end is connected to a pipe bracket fixed to one of the gas pipes of the pair of gas pipes; and a connecting bar connected to the wall; When compressing the coil-like elastic body by reducing the gap between the pressure sensor and the operation bar, the pressure change of the pressure sensor is received to calculate the external impact force, and based on the calculated impact force to determine whether to shut off the gas by the safety shutoff device. Control unit; It provides a remote terminal device having a shock detection function comprising a.

Preferably, the sensor arrangement is connected to the wall bracket provided on the wall rotatably assembled via a hinge pin, and the pressure sensor is inserted into the closed end and the long hole communicated with the guide inner hole and the body outer surface Through-formed in the operation bar includes a cylindrical body inserted into the guide inner hole assembly.

Preferably, the operation bar extends a predetermined length from an end corresponding to the pressure sensor so as to be inserted into the coil-shaped elastic body, and blocks the safety blocking device from the contact sensor when contacting the contact sensor stacked on the front of the pressure sensor. It includes a predetermined length extension for generating a signal.

Preferably, the connecting bar has a male screw portion screwed to the female screw portion formed in the connection hole of the connecting bar at one end, and the support pin is mounted to the mounting groove formed in the support plate of the flange portion extending from the pipe bracket It is provided at the end.

More preferably, the mounting groove has an inclined surface inclined at an angle upward from the semicircular groove on which the support pin is placed.

The present invention as described above has the following effects.

(1) A pressure sensor and a contact sensor are stacked in the guide inner hole of the sensor arrangement part connected to the wall of the protective case, and a coil type elastic body is disposed between the pressure bar and the operating bar inserted and assembled into the guide inner hole. When the connected bar is mounted on the mounting groove of the support plate connected to the pipe bracket of the gas pipe, when the wall is deformed by external impact force such as a vehicle collision, and the gap between the pressure sensor and the operating bar is narrowed, the pressure sensor is in contact with the compressed coil type elastic body. Since the pressure change is detected, the external impact force is calculated on the basis of the pressure value and the pressure change detected by the pressure sensor, and on the basis of this, the control unit judges whether the gas is blocked and whether it is on-site. Various measures can be taken to increase the safety and reliability of the gas hydrostatic equipment.

(2) Since the wall is excessively deformed by external impact force such as a vehicle collision, the contact sensor comes into contact with the extension part of the operation bar, so that the signal that blocks the gas from the controller can be generated by the detection signal generated by the contact sensor. The gas pipes exposed to the ground can be damaged by excessive external impact force, and the risk of gas leakage through damaged parts can be prevented, and the construction can be reduced by replacing expensive medium pressure gas pipes with low pressure pipes. have.

(3) The external arrangement of the protective case can be reduced by absorbing and buffering the external impact force transmitted through the wall by the sensor arrangement part, the operation bar, and the connection bar provided between the wall and the gas pipe. The effect of reducing deformation is obtained.

1 is a block diagram showing a remote terminal device having a shock detection function according to a preferred embodiment of the present invention.
2 is an exploded perspective view showing a remote terminal device having a shock detection function according to a preferred embodiment of the present invention.
3 is an operation state diagram showing a remote terminal device having a shock detection function according to an embodiment of the present invention,
(a) is the standby state
(b) is the pressure sensor detection state,
(c) shows the state of contact sensor detection.
Figure 4 is a detailed view showing a gas pipe and a connection state in the remote terminal device having a shock detection function according to an embodiment of the present invention.
5 is an installation state diagram showing a remote terminal device having a shock detection function according to an embodiment of the present invention.
Figure 6 is a block diagram showing a control unit employed in a remote terminal device having a shock detection function according to an embodiment of the present invention.
Figure 7 is a schematic diagram showing a gas pressure regulator equipment generally installed on the ground.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Remote terminal device 100 having an impact detection function according to a preferred embodiment of the present invention, as shown in Figures 1 to 6, the filter (between the gas pipe (11, 12) exposed from the basement to the ground ( 10) and external shocks such as vehicle collisions are sensed remotely in a protective case 50 having a predetermined size of internal space accommodating them so as to protect the gas pressure regulator including the safety shut-off device 20 and the regulator from the external environment. It includes a sensor arrangement unit 110, the operation bar 120, the connection bar 130 and the control unit 140 to control and monitor.

The sensor arrangement 110 has one end connected to the wall 55 of the case 50 corresponding to the gas pipes 11 and 12 exposed to the ground, and the guide inner hole 112 having one end opened in the body. And a pressure sensor 114 having a contact sensor 116 stacked on the front side of the guide inner hole 112.

Here, the pressure sensor 114 is formed relatively larger than the outer diameter of the contact sensor 116 to be inserted into the inner surface of the guide inner hole 112 while contacting one end of the coil-shaped elastic body 122 to be described later. The contact sensor 116 is disposed in the inner diameter of the coil-like elastic body 122 and has a smaller outer diameter size than the outer diameter of the pressure sensor 114 so as not to interfere with the center of one side of the pressure sensor 114. It is fixedly installed.

The sensor arrangement unit 110 is connected to the wall bracket 55 and the hinge pin (111a) fixedly installed on one side of the wall 51, the connecting bracket 111 and the pressure sensor 114 ) And the contact sensor 116 is inserted into the closed end and formed through the long hole 115 communicated with the guide inner hole 112 on the outer surface of the body to guide the inner hole 112 is open the operation bar 120. It includes a cylindrical body 113 is assembled through the inlet end of the).

The outer surface of the cylindrical body 113 has a drawing hole (113a) for the cable extending from the pressure sensor 114 and the contact sensor 116 disposed on the sealing side of the guide inner hole 112 is drawn out to the outside. It is formed to be connected to the guide inner hole 112, the cable is electrically connected to the control unit to transmit the measured value detected by the pressure sensor and the contact sensor to the control unit 140.

Accordingly, the sensor arrangement unit 110 is rotatably assembled via the hinge pins 111a, and the operation bar 120 is guided to the guide inner hole 112 formed in the cylindrical body 113. Possibly assembled.

The operation bar 120 includes a coil-shaped elastic body 122 having one end in contact with the pressure sensor 114 in the guide inner hole 112, and a cylindrical body of the sensor arrangement unit to communicate with the guide inner hole 112. 113 is provided with a stopper 124 disposed in the through-hole 115 formed in the outer surface.

The other end of the coil elastic body 122 inserted through the open inlet end of the guide inner hole 112 is elastically supported in contact with the annular stepped end formed on the outer surface of the body of the operation bar 120.

The coil-like elastic body 122 is disposed between the pressure sensor 114 and the operation bar 120 while placing the contact sensor 116 without interfering with the inner diameter of one end contacting the pressure sensor 114, the stopper 124 is assembled to any one of the plurality of stopper pin connecting holes 123 having a predetermined interval on the outer surface of the body of the operation bar 120 is disposed in the long hole 115 of the cylindrical body 113.

Here, the operation bar 120 has an extension 121 extending a predetermined length from an end corresponding to the contact sensor 116 to be inserted into the inner diameter of the coil-like elastic body 122.

Accordingly, as shown in Figure 3a, the operation bar 120 is inserted into the guide inner hole 112 is not separated from the outside by the interference between the stopper 124 and the long hole 115 to the outside The contact with the other end of the coil-like elastic body 122 is in contact with the pressure sensor 114 is maintained, the extension 121 is to maintain a state spaced apart from the contact sensor 116 a certain distance.

In this state, as illustrated in FIG. 3B, the wall 51 is deformed by an external impact force such as a vehicle crash on the wall of the protective case 50, and the sensor arrangement unit 110 operates at the same time. When pushed to the side, the gap between the pressure sensor 114 and the operation bar 120 is narrowed and the coil-like elastic body 122 is compressed to press the pressure sensor 114.

In addition, as shown in FIG. 3C, when the deformation amount of the wall 51 is large and the sensor arrangement 110 is excessively pushed toward the operation bar 120, the pressure sensor 144 and the operation bar 120 are provided. If the interval between them becomes narrower, the detection signal is generated by the contact between the contact sensor 116 and the extension part 121 disposed on the front surface of the pressure sensor 114.

The connection bar 130 is assembled to a connection hole 125 formed at one end of the operation bar 120 to connect the operation bar 120 to the gas pipes 11 and 12, and any one of the gas pipes The other end is connected to the pipe bracket 138 fixed to the gas pipe.

Here, the connection bar 130 is provided with a male screw portion 132 of a predetermined length screwed with the female screw portion formed in the connection hole 125 of the operation bar 120 at one end, the pipe bracket 138 A support pin 134 mounted on the mounting groove 136 formed in the support plate 135 of the flange portion 137 extending from the other end is provided.

The pipe bracket 138 may be provided as a plurality of split brackets fixed to the outer surface of the gas pipes 11 and 12 by fastening members fastened to a pair of flange portions 137 facing each other. One side of the flange 137 is integrally provided with a pair of support plates 135 recessed to form a mounting groove 136 on which the support pins 134 are mounted.

In addition, the mounting groove 136 includes a semicircular groove on which the support pin 134 is raised, and an inclined surface 136a inclined at an angle upward from the semicircular groove.

Accordingly, when repairing and checking the gas pressure regulator including the gas pipe, the support pin 134 provided at one end of the connection bar 130 is lifted upward from the mounting groove 136 of the support plate 135. Since the connection bracket 111 of the sensor arrangement unit 110 connected to the operation bar 120 is assembled to be rotatable via the wall bracket 55 and the hinge pin 111a, the connection bar 130 can be easily When the separation and detachment, and the repair and inspection work for the gas pressure regulator is completed is to simply mount the support pin 134 in the mounting groove 136 to wait for the detection operation to the external shock.

In addition, even after the contact signal between the contact sensor 116 and the extension bar 121 is generated by an external impact force such as a vehicle crash, when the connection bar 130 along with the operation bar 120 is excessively pushed toward the gas pipe side. The support pin 134 is separated along the mounting groove 136 of the semi-circular groove shape of the support plate 135 and the inclined surface 136a extending therefrom to minimize damage to the facility.

The control unit 140 is deformed of the wall due to the external shock transmitted to the wall 51 is generated by the pressure sensor 114 and the operation bar disposed in the guide inner hole 112 of the sensor arrangement 110. When the gap between the 120 is reduced, thereby compressing the coil-like elastic body 122 to pressurize the pressure sensor 114, the pressure change of the pressure sensor 114 is received to calculate the impact force transmitted from the outside And a controller 141 determining whether the gas supply is cut off by the safety shut-off device 20 based on the calculated impact force.

The controller 141 transmits the detection signal by the pressure sensor, the contact sensor and the gas detection signal by the gas sensor for detecting a gas leakage in the gas pipe so as to be remotely monitored, and generates a blocking side such as a safety shutoff device. It may be provided inside the box body having a transceiver 141, such as a modem to receive a control signal to operate.

In the inner space of the box body is provided with a circuit breaker 143 for blocking the leakage of power supplied from the outside, and a blocking signal to the surge protection unit 144 and the safety circuit breaker to block the over-current to protect the components It may include a blocking unit for generating.

The control unit 140 may be provided in the remote terminal device installed on the wall outer surface or a separate place of the protective case to check the operation state of the gas pressure regulator, and to perform remote control.

Here, the controller is illustrated and described as being provided on the outer surface of the protective case, but is not limited thereto, and may be independently provided at a separate place away from the protective case.

By providing a remote terminal device 100 having an impact sensing function having the above-described configuration between the wall 51 of the protective case 50 and the gas pipes 11 and 12, the vehicle collides with the protective case 50. Detects the impact force generated and determines whether to shut off the gas according to the impact force.

That is, the standby state for detecting the external impact force transmitted to the protective case is shown in Figure 3a, the pressure sensor 114 disposed in the guide inner hole 112 of the sensor arrangement 110 is the guide inside The other end of the coil-like elastic body 122 is in contact with the other end of the operation bar 120 slidably assembled to the ball 112, the contact sensor 116 provided in front of the pressure sensor 114 is the operation bar It extends a predetermined length from the end of the 120 to maintain a state spaced apart from the extension portion 121 disposed in the inner diameter of the coil-like elastic body 122.

In this state, when the vehicle traveling on the wall 51 of the protective case 50 collides and the wall 51 is deformed inward by the external impact force caused by the collision of the vehicle, the sensor arrangement unit 110 Since the gap between the pressure sensor 114 and the operation bar 120 is narrowed as the pressure is pushed toward the operation bar 120 side, the coil-like elastic body 122 is compressed to have an elastic restoring force, thereby increasing the pressure sensor 114. It is pressed to the wall side.

At this time, the pressure value measured by the pressure sensor 114 is transmitted to the control unit 140 through a cable, and calculates the external impact force transmitted to the wall 51 on the basis of the transmitted pressure value, whether the field trip, It is determined whether the gas is blocked.

On the other hand, the deformation amount of the wall 51 due to an external impact force such as a vehicle collision is so large that the sensor arrangement 110 is pushed excessively toward the operation bar 120 side between the pressure sensor 144 and the operation bar 120 If the distance between the two becomes narrower, contact between the contact sensor 116 disposed on the front surface of the pressure sensor 114 and the extension 121 is made, so that the detection map by the contact sensor 116 detects the contact signal. Simultaneously with the transmission to the controller 141 side of the control unit 140, the controller unit 141 determines that there is a risk of damage to the gas pipe due to external impact force and stops the gas supply by the safety shutoff device.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art may variously modify or change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

11,12 gas pipe 10 filter
20: safety shut-off device 50: protective case
51: wall 55: wall bracket
110: sensor arrangement 111: connection bracket
112: guiding insider 113: cylindrical body
113a: drawing hole 114: pressure sensor
115: long hole 116: contact sensor
120: operation bar 121: extension bar
122: coiled elastic body 124: stopper
130: connecting bar 132: male thread
134: support pin 135: support plate
136: mounting groove 137: flange
138: piping bracket 140: control unit
141: controller 142: transceiver
143: earth leakage breaker 144: surge protection unit

Claims (5)

A gas pressure regulator equipped with a filter and a safety shut-off device in the inner space of the protective case between a pair of gas pipes exposed from the basement to the ground receives the pressure measurement value of the gas pipe and transmits the received information to the server and the control signal from the server. In the remote terminal device for transmitting a signal for blocking the flow path of the gas pipe,
A sensor arrangement unit having one end connected to a wall provided in the protective case, forming a guide inner hole having one end opened in the body, and fixedly arranging a pressure sensor and a contact sensor at a sealing side of the guide inner hole;
And a stopper disposed at a long hole formed through the outer surface of the sensor arrangement portion so as to communicate with the guide inner hole, and having a coil-like elastic body having one end in contact with the pressure sensor. An insertion bar arranged to be elastically supported by contacting the other end of the coil elastic body with a body part;
One end is connected to one end of the operation bar, the connection bar is connected to the other end is connected to the pipe bracket fixed to any one of the gas pipe of the pair of gas pipe; and
The external impact force is calculated by receiving the pressure change of the pressure sensor when compressing the coil-like elastic body by the reduction of the distance between the pressure sensor and the operation bar due to the external shock transmitted to the wall, and based on the calculated impact force A control unit for determining whether the gas is blocked by the safety shut-off device; Remote terminal device having a shock detection function comprising a. The method of claim 1,
The sensor arrangement is formed through the connecting bracket which is rotatably assembled to the wall bracket provided on the wall via a hinge pin, and the pressure sensor is inserted into the closed end and the long hole communicated with the guide inner hole through the body outer surface Remote terminal device having a shock detection function characterized in that it comprises a cylindrical body inserted into the operating bar guide inner hole. The method of claim 1,
The operation bar extends a predetermined length from an end corresponding to the pressure sensor so as to be inserted into the coil-like elastic body to generate a blocking signal from the contact sensor to the safety shutoff device when contacting the contact sensor stacked on the front of the pressure sensor. Remote terminal device having a shock detection function, characterized in that it comprises a predetermined length extension. The method of claim 1,
The connection bar has a male screw portion screwed to the female screw portion formed in the connection hole of the connecting bar at one end, and the other end has a support pin mounted to the mounting groove formed in the support plate of the flange portion extending from the pipe bracket. Remote terminal device having a shock detection function, characterized in that. 5. The method of claim 4,
The mounting groove is a remote terminal device having a shock detection function, characterized in that it has an inclined surface inclined at an angle upward from the semicircular groove on which the support pin is raised.

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