KR100959896B1 - Security unit for a ground wire - Google Patents

Abstract

The present invention relates to a ground wire security device.

According to the present invention, the ground wire security device includes a tilt sensor and a ground wire monitor. Tilt sensor is attached to the ground line of the communication equipment to detect the change of the slope due to physical impact or movement applied to the ground line. The ground line detector sends an alarm signal to the comprehensive situation room when the tilt sensor detects a change in the slope.

In this way, by using the inclination sensor to monitor whether the ground wire is stolen, if the ground wire is stolen, it is possible to prompt response by real-time notification to the operator of the comprehensive situation room.

Ground Wire, Communication Equipment, Tilt Sensor

Description

Ground unit security device {Security unit for a ground wire}

The present invention relates to a ground wire security device. More particularly, the present invention relates to a grounding wire security device for monitoring a grounding wire installed in communication equipment so as not to be stolen by an external intruder.

In general, a grounding line installed in a communication device, for example, a base station or a repeater, may electrically connect the communication device to the earth and send a surge voltage due to an overload or lightning applied to the communication device to the earth. That is, the ground wire prevents the communication equipment from being damaged by the overload and the surge voltage.

However, each year, the ground wire theft is continuously and duplicated, which affects the stable operation of communication equipment, resulting in an increase in repair maintenance costs. In the Goyang and Paju regions of Gyeonggi Province, 13 cases in 2007 and 3 cases in the first quarter of 2008 have already occurred.

If the communication device lightning rod ground wire is broken, there is no abnormality in normal operation, but when it rains or strikes, the equipment switching part may be damaged and cause a cell phone failure. Nevertheless, there is no special countermeasure against ground wire theft.

That is, there is no separate device that can detect the ground wire being stolen or cut off. In order to solve this problem, in the general situation room, patrols or surveillance cameras are installed to check the state of the ground wire at predetermined time intervals, which is not only expensive, but also difficult to monitor in real time. .

The technical problem to be achieved by the present invention is to provide a ground wire security device that can be quickly responded to the operator in real time by monitoring whether the ground wire is stolen in real time if theft occurs.

Ground wire security device according to a feature of the present invention in order to achieve the above problems,
An inclination sensor attached to a ground line of a communication device and detecting a change in inclination due to physical shock or movement applied to the ground line; A ground line monitoring unit configured to transmit an alarm signal to a general situation room when the tilt sensor detects a change in inclination; An alarm sound generator connected to the ground line monitor to generate and output an audible alarm sound; And an environmental alarm connected to the ground wire monitoring unit to generate and transmit the alarm signal, wherein the alarm signal is mounted on a communication device to generate and send an environmental alarm signal generated as a result of monitoring and monitoring conditions of surrounding environments of the communication device. Includes a generator,
The ground wire monitoring unit,
A switching function is performed according to whether the tilt sensor detects a change in inclination, and includes a ground terminal, a first switch connected to the tilt sensor, and a second switch connected to a power supply unit for supplying power for driving the ground wire monitoring unit. A first relay circuit unit; A switching function is performed according to whether the tilt sensor detects a change in inclination, and includes a first switch connected to the tilt sensor, a second switch of the first relay circuit part, and a second switch connected to the environmental alarm generator. 2 relay circuit section; And a third relay circuit unit connected to the first switch of the second relay circuit unit and the alarm sound generator and operating when the first switch of the second relay circuit unit is turned off to drive the alarm sound generator.

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According to the present invention, the operation personnel can be immediately input when the ground line theft occurs by notifying the operator by monitoring the matters such as theft of the ground line, a part of cutting and the loss of the ground line in real time through the ground line security device which has not been provided in the past. In addition, it is possible to prevent theft of the ground line theft by giving an alarm to the ground line theft burglar to prevent the continued theft.

In addition, the ground wire security device that interlocks with the environmental alarm configuration mounted on the communication equipment can easily monitor in real time whether the ground wire is stolen.

In addition, by implementing a ground wire security device using a tilt sensor, it can be easily installed at a low cost.

In addition, by using the same power source as the operating power of the communication equipment as the power supply of the ground wire security device, the power supply of the ground wire security device is easy and the circuit configuration is simplified.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. .

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

Now, a ground wire security device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the structure of the ground wire security apparatus according to an embodiment of the present invention.

As shown in FIG. 1, a tilt sensor (hereinafter, referred to as a tilt sensor) 200 is attached to a specific point of the ground line 100 installed above the ground, for example, 4 to 5 m above the ground.

The tilt sensor 200 is a sensor that can detect the impact or movement of the ground wire 100. When the tilt sensor 200 attempts to cut the ground wire 100, the tilt sensor 200 detects a physical shock applied to the ground wire 100 to operate the ground wire monitoring unit 300.

The tilt sensor 200 has a simple on / off function when a shock or movement occurs unlike a conventional sensor circuit, and is a passive device that does not require a separate operating current. The tilt sensor 200 normally functions as a switching that is turned on when tilted more than 20 ° from side to side in an off state.

The ground wire monitoring unit 300 connected to the tilt sensor 200 is an alarm circuit that operates when the tilt sensor 200 is turned on. The ground line monitoring unit 300 is designed such that an alarm is maintained until the tilt sensor 200 detects the impact or movement of the ground line 100 before manually initializing the circuit.

As such, the tilt sensor 200 attached to the ground line 100 is connected to the ground line monitoring unit 300. This is to prevent the possibility of damage to the communication equipment when a lightning strike or leakage current occurs when the alarm circuit is directly connected to the copper body of the ground wire 100 itself.

In addition, after freezing the tilt sensor 200 in the refrigerator for about three days in order to check whether the tilt sensor 200 operates properly even in a low temperature state, when the shock / movement is applied, a test for a normal operation for one week as a result of normal It was confirmed that the operation.

The ground wire monitoring unit 300 is connected to the power supply unit 400, the alarm sound generator 500, and the environment alarm generator 600.

The power supply unit 400 supplies power for driving the circuit of the ground line monitoring unit 300.

The alarm sound generator 500 is a device for generating an audible alarm sound such as a siren. When an external intruder attempts to cut the ground wire 100, the alarm sound generator 500 may alert the user to stop the theft operation. The alarm sound generator 500 generates an audible alarm sound by the ground line monitoring unit 300 driven as the tilt sensor 200 is turned on, and outputs it through the speaker.

The alarm sound generator 500 may be selected from fire extinguishing equipment to operate at the rectifier power source DC 27V.

The environmental alarm generator 600 is a device that is preloaded in a communication device (eg, a base station, a repeater, etc.), and generates an alarm according to a result of monitoring and monitoring the state of surrounding environments of the communication device. Types of environmental alarms include rectifier alarms generated when a voltage down, rectifier output overvoltage, undervoltage, overcurrent, etc. occur, and environmental alarms generated when a fire occurs or flooding.

The environmental alarm generator 600 is connected to the general situation room 700 and transmits the generation of the environmental alarm to the general situation room 700.

And the ground wire monitoring unit 300 may be installed in the upper space of the rectifier rear door of the communication equipment and the alarm sound generator 500 may be installed on the communication equipment bottom.

As such, the ground wire security device includes a tilt sensor 200, a ground wire security device, a power supply unit 400, an alarm sound generator 500, and an environment alarm generator 600.

On the other hand, the comprehensive situation room 700 performs a function for the overall monitoring and control of the communication equipment. The comprehensive situation room 700 may mean a base station manager (BSM) of the exchange room. The base station management unit collects information on base station operation, monitors base station operation, monitors subordinate devices related to detected failures, tests by command, and collects statistical data.

In the comprehensive situation room 700, when an environmental alarm is generated from the environmental alarm generator 600, dispatch the operating personnel to the corresponding communication equipment.

As such, since the ground line monitoring unit 300 is interlocked with the environmental alarm generator 600, when the tilt sensor 200 detects a physical shock of the ground line 100, the ground line monitoring unit 300 performs an environmental alarm generator 600 that performs a real-time monitoring function. Through the comprehensive situation room 700 may be informed whether the ground line 100 is stolen.

On the other hand, the alarm circuit configuration of the ground line monitoring unit 300 is designed as a logic circuit composed of a relay, as shown in Figures 2, 3 and 4 below.

That is, the ground wire monitoring unit 300 may include a first relay circuit unit R1 having a switching function, a second relay circuit unit R2, a third relay circuit unit R3 performing a power relay function for an alarm sound generator, and the first relay circuit unit. (R1), second relay circuit portion R2, and third relay circuit portion R3 for resetting the switch portion S / W and a fuse. In addition, although not shown in the figure, it may include an alarm sound generating controller for artificially releasing the operation of the alarm sound generator 500 by the operating personnel.

The tilt sensor 200 is connected to the first switch S1 of the first relay circuit part R1 at the '+' end of the two terminals, and the first switch of the second relay circuit part R2 at the other '-' end. Waterproof by connecting to S1) and ground (GND) terminals. That is, connect ⓐ cable to one of the two terminals and ⓑ and ⓒ cables to the other.

Here, ⓐ cable is connected to the first relay circuit (R1), ⓑ cable is connected to the second relay circuit (R2), © cable is connected to the ground terminal.

One side of the first switch S1 of the first relay circuit part R1 is connected to an ⓐ cable and one side is connected to a ground terminal.

The second switch S2 of the first relay circuit part R1 is connected to the power supply unit 400 through a first switch and a fuse. At this time, the circuit power of the ground line monitoring unit 300 provided by the power supply unit 400 uses a rectifier power DC 27V of the communication equipment.

Ⓑ The first switch S1 of the second relay circuit portion R2 connected to the cable is connected to the second switch S2 of the first relay circuit portion R1 and the alarm sound generator 500.

The second switch S2 of the second relay circuit part R2 is connected to the environmental alarm generator 600, and when the second switch S2 is turned off, an alarm is generated in the environmental alarm generator 600.

At this time, the second switch (S2) of the second relay circuit unit (R2) in series with the power failure alarm terminal of the outdoor base station can be monitored using the 'AC Fail' of the environmental alarm. Alternatively, you can monitor using 'Fire Alarm' among the environmental alarms.

The third relay circuit unit R3 is connected to the second relay circuit unit R2 and the alarm sound generator 500.

As described above, the ground line monitoring unit 300 configured as described above will be described for a method of monitoring whether the ground line is stolen by operating according to embodiments.

2 is an internal circuit diagram of the ground line monitoring unit when the ground line according to the embodiment of the present invention is in a normal state, and FIG. 3 is an internal circuit diagram of the ground line monitoring unit when an error occurs in the ground line according to the first embodiment of the present invention. 4 is an internal circuit diagram of a ground line monitoring unit when an error occurs in the ground line according to the second embodiment of the present invention. At this time, the flow of the current is indicated by a dotted line (-).

First, as shown in FIG. 2, when the tilt sensor 200 is in a normal state, that is, in an off state, no current flows through the coil of the first relay circuit part R1. Therefore, the first switch S1 and the second switch S2 of the first relay circuit portion R1 are switched off, ie, downward.

In addition, a current drawn through the power supply unit 400 passes through a fuse and a first switch, and a current flows through a coil of the second relay circuit unit R2 through a second switch S2 of the first relay circuit unit R1.

Therefore, the first switch S1 and the second switch S2 of the second relay circuit portion R2 are switched on, that is, turned upward. At this time, the alarm of the environmental alarm generator 600 does not occur when the second switch S2 of the second relay circuit part R2 is turned on or switched upward. In the state in which the first switch S1 of the second relay circuit part R2 is switched upward, no current flows in the coil of the third relay circuit part R3, so that the first switch is in an off state and thus power is not supplied. Since the alarm sound generator 500 does not operate.

That is, when the tilt sensor 200 is in the off state, the current of the ground wire monitoring unit 300 is drawn from the power supply unit 400 to open the second switch S2 of the fuse, the first switch, and the first relay circuit unit R1. It passes through the coil of the second relay circuit portion R2 and flows into the ⓑ cable and the ⓒ cable.

Next, as shown in FIG. 3, when the tilt sensor 200 is inclined to the left or right by more than 20 ° and the ⓐ cable and the ⓑ cable are shorted even for a short time, the current drawn from the power supply unit 400 becomes the first relay. It passes through the coil of the circuit part R1 and passes through the cable ⓐ to the cable ⓒ (①). At this time, the first switch S1 of the first relay circuit portion R1 is switched upwards to maintain the current supply of the first relay circuit portion R1 (①).

Since the second switch S2 of the first relay circuit portion R1 is also switched upward, the current flowing through the coil of the second relay circuit portion R2 is blocked. Then, since the second switch S2 of the second relay circuit part R2 is switched downward, the supply of current to the environmental alarm generator 600 is cut off, so that the environmental alarm generator 600 generates an alarm. In addition, the first switch S1 of the second relay circuit portion R2 is also switched downward so that current flows in the coil of the third relay circuit portion R3 (2). In addition, since the switch of the third relay circuit part R3 is turned upward and operated (②), the alarm sound generator 500 generates an alarm sound.

Lastly, as shown in FIG. 4, when the cable connected to the tilt sensor 200 is cut, that is, when the ⓑ cable and ⓒ cable are cut, the second switch S2 of the first relay circuit part R1 is cut through the second switch S2. Through the relay circuit portion R2, the current flowing through the ⓑ cable and the ⓒ cable is cut off. At this time, it corresponds to the case of changing from the normal state of FIG. 2 to the abnormal state of FIG. 4.

Then, since the second relay circuit portion R2 stops operating, the first switch S1 and the second switch S2 of the second relay circuit portion R2 are switched downward so that the current flowing to the environmental alarm generator 600 is reduced. Is blocked, the environmental alarm generator 600 generates an alarm.

Since the current flows through the coil of the third relay circuit portion R3 through the first switch S1 of the second relay circuit portion R2, the switch of the third relay circuit portion R3 is switched upward and operates to generate an alarm sound. Generator 500 generates an alarm sound.

In this case, since the first relay circuit part R1 continues to operate even when the tilt sensor 200 is restored to its original state in FIGS. 3 and 4, the alarm sound generator 500 and the environment alarm generator 600 respectively generate alarm sounds and the like. Continue alarm occurrence. Therefore, the operation personnel is artificially restored to the original tilt sensor 200 and reset the relay circuit of the ground line monitoring unit 300, the operation is restored to the normal state.

As described above, the first switch S1 of the first relay circuit portion R1 at the '+' end of the tilt sensor 200 or the first switch S1 of the second relay circuit portion R2 at the '-' end. ) And the cable connected to the ground (GND) terminal is disconnected, the second switch (S2) of the second relay circuit (R2) is turned off to generate an environmental alarm. In addition, when the tilt sensor 200 is inclined, the second switch S2 of the second relay circuit part R2 is turned off to generate an environmental alarm.

In this case, once the environmental alarm occurs, the environmental alarm is cleared only after the cause of the alarm is solved, that is, the cable is disconnected and the tilt sensor is located in the original position and the power is reset.

When the ground wire cutter cuts off the power supply of the ground wire monitoring unit 300 for the purpose of clearing the alarm or the fuse is disconnected due to the overcurrent inside the circuit, the second switch S2 of the second relay circuit unit R2 is turned off and the environment. An alarm occurs. Therefore, intentional alarm cancellation by an external intruder is impossible. At this time, the alarm sound generator 500 does not operate.

In addition, the alarm sound generator 500 may be reset to the outside of the ground line monitoring unit 300 through a separate operation device, that is, alarm sound generating control unit to release the alarm sound.

As such, when there is an unauthorized attempt to cut, detach or remove the ground wire 100 by an external intruder, the tilt sensor 200 is turned on to operate the relay circuit of the ground wire monitoring unit 300. Sounds and raises environmental alarms. For example, a base station controller (BSC) generates an audible alarm (AC) power source of a base transceiver system (BTS) to immediately notify an operator.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view showing the structure of the ground wire security apparatus according to an embodiment of the present invention.

2 is an internal circuit diagram of a ground line monitoring unit when the ground line is in a normal state according to an exemplary embodiment of the present invention.

3 is an internal circuit diagram of a ground line monitoring unit when an error occurs in the ground line according to the first embodiment of the present invention.

4 is an internal circuit diagram of a ground line monitoring unit when an error occurs in the ground line according to the second embodiment of the present invention.

Claims (8)

delete delete An inclination sensor attached to a ground line of a communication device and detecting a change in inclination due to physical shock or movement applied to the ground line; A ground line monitoring unit configured to transmit an alarm signal to a general situation room when the tilt sensor detects a change in inclination; An alarm sound generator connected to the ground line monitor to generate and output an audible alarm sound; And An environmental alarm generator connected to the ground line monitoring unit for generating and transmitting the alarm signal, wherein the alarm signal is mounted on a communication device to generate and send an environmental alarm signal generated by monitoring and monitoring a state of surrounding environments of the communication device. Including, The ground wire monitoring unit, A switching function is performed according to whether the tilt sensor detects a change in inclination, and includes a ground terminal, a first switch connected to the tilt sensor, and a second switch connected to a power supply unit for supplying power for driving the ground wire monitoring unit. A first relay circuit unit; A switching function is performed according to whether the tilt sensor detects a change in inclination, and includes a first switch connected to the tilt sensor, a second switch of the first relay circuit part, and a second switch connected to the environmental alarm generator. 2 relay circuit section; And A third relay circuit unit connected to the first switch of the second relay circuit unit and the alarm sound generator and operating when the first switch of the second relay circuit unit is turned off to drive the alarm sound generator; Ground wire security device comprising a. The method of claim 3, The tilt sensor is, And a '+' terminal connected to a first switch of the first relay circuit part, and a '-' terminal connected to a first switch and a ground terminal of the second relay circuit part. The method of claim 4, wherein When the inclination sensor is switched from the off state to the on state and the respective cables connected to the first relay circuit portion and the second relay circuit portion are shorted to each other, The first relay circuit unit, The first switch and the second switch is turned on to pass the current drawn from the power supply to output to the ground terminal connected to the inclination sensor and the first relay circuit, The second relay circuit unit, The first switch and the second switch is turned off to cut off the current flowing into the environmental alarm generator to generate an environmental alarm signal, The third relay circuit unit, And a current passing through the first switch of the second relay circuit portion drives the alarm sound generator. The method of claim 4, wherein When the cable connecting the second relay circuit portion and the ground terminal to the inclination sensor is cut off, The second relay circuit unit, The first switch and the second switch is turned off to cut off the current flowing into the environmental alarm generator to generate an environmental alarm signal, The third relay circuit unit, And a current passing through the first switch of the second relay circuit unit from the power supply unit to drive the alarm sound generator. The method according to claim 5 or 6, The ground wire monitoring unit, A switch unit for resetting the first relay circuit unit, the second relay circuit unit, and the third relay circuit unit; And Alarm sound generation controller for releasing the operation of the alarm sound generator Ground wire security device further comprising. The method of claim 3, The second relay circuit unit, When the power supplied by the power supply unit connected to the first relay circuit unit is cut off and no current flows, or when the fuse connected between the first relay circuit unit and the power supply unit is disconnected due to overcurrent, the second switch is turned off to the environment. Ground wire security device that generates an alarm signal.

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