CN107424369A - A kind of optic cable vibration sensor alarm of low rate of false alarm - Google Patents

Abstract

The invention relates to the field of security technology, in particular to an optical cable vibration sensing alarm device with a low false alarm rate; the invention includes an alarm host and a vibration sensing mechanism; the vibration sensing mechanism includes a vibration optical cable, a collector and an optical cable terminal box, A laser, a light detector, a photoelectric converter, and an alarm processor are arranged in the device; in the present invention, the vibrating optical cable is laid and wound around a fence or wall, and the laser sends a laser signal to the vibrating optical cable. When someone invades, the vibrating optical cable The output waveform optical signal will change, the photodetector receives the changed output waveform optical signal, the photoelectric converter converts the changed output waveform optical signal into an electrical signal, the alarm processor analyzes and processes, and compares , to judge whether there is an intrusion, and if it is judged to be an intrusion, the alarm host will give an alarm.

Description

A Low False Alarm Rate Vibration Sensing Alarm Device for Optical Cables

technical field

The invention relates to the field of security technology, in particular to an optical cable vibration sensing alarm device with a low false alarm rate.

Background technique

With the development of the economy, people are faced with more and more temptations, and more and more people are unable to resist the temptation and are willing to take risks, which leads to an increasing frequency of theft incidents. In order to protect people's private property and public interests, anti-theft security technology has emerged as the times require, and is also being continuously developed and improved according to existing technologies, and the safety performance is getting higher and higher.

The current anti-theft technology on the market generally uses a combination of infrared sensing and reed switch on-off control to realize the purpose of sensing unknown objects entering the room or doors and windows being forcibly opened. In the above-mentioned anti-theft technical means or devices, the sensitivity of infrared sensing objects is relatively low, which is likely to cause false alarms or missed alarms, thus making it difficult to effectively guarantee the safety of personal property or public interests.

Contents of the invention

In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide a low false alarm rate optical cable vibration sensing alarm device, which lays the vibrating optical cable, and the collector senses the change of the output signal of the vibrating optical cable to judge Is someone intruding.

The technical scheme that the present invention solves its technical problem is:

An optical cable vibration sensing alarm device with low false alarm rate, which includes an alarm host in the monitoring room and several vibration sensing mechanisms outside the monitoring room; the alarm host and the vibration sensing mechanisms are connected by wireless communication The vibration sensing mechanism includes a vibration optical cable, a collector and an optical cable terminal box, one end of the vibration optical cable is connected to the collector, and the other end of the vibration optical cable is connected to the optical cable terminal box; the collector A laser for sending a laser signal to the vibrating optical cable, a photodetector for receiving the output waveform optical signal from the vibrating optical cable, and a photodetector for converting the optical signal transmitted by the photodetector into an electrical signal A photoelectric converter, an alarm processor for analyzing and processing the electrical signal transmitted by the photoelectric converter.

As an improvement of the present invention, the collector is provided with a wireless transmitter for sending an alarm signal and connected to the alarm processor, and the alarm host is provided with a wireless transmitter for receiving the alarm signal sent by the wireless transmitter wireless receiver.

As a further improvement of the present invention, the collector is provided with a frequency filter for filtering vibration signals with a frequency of 20HZ-200HZ.

As a further improvement of the present invention, the collector is provided with a frequency setter for setting the filtering frequency of the frequency filter.

As a further improvement of the present invention, a detector for detecting the duration of the vibration signal and an event counter for counting the number of vibrations are arranged in the collector, and the detector and the event counter are all connected with the alarm processor connect.

As a further improvement of the present invention, when the duration of the vibration signal detected by the detector is greater than 5 seconds, and at the same time, the number of vibrations counted by the event counter per second is greater than 2 times, the alarm processor controls the wireless The transmitter sends an alarm signal.

As a further improvement of the present invention, the alarm host is provided with a warning mechanism and a display mechanism that are both connected to the wireless receiver, and the alarm mechanism includes connected relays and settings inside the alarm host. An indicator light on the alarm host; the display mechanism includes a connected display screen and a memory storing electronic map information.

As a further improvement of the present invention, when the vibrating optical cable is laid on the wrought iron fence, both the collector and the cable terminal box are fixedly connected to the wrought iron fence, and the vibrating optical cable is connected to the wrought iron fence in an S-shape.

As a further improvement of the present invention, when the vibrating optical cable is laid on the barbed wire fence, both the collector and the cable terminal box are fixedly connected to the barbed wire fence, and the vibrating optical cable is connected to the barbed wire fence in a straight line.

As a further improvement of the present invention, when the vibrating optical cable is laid on the enclosure wall, the collector and the optical cable terminal box are connected

At a height of 1.5 to 2 meters from the ground inside the wall, two vibrating optical cables are laid on the outside of the wall in a parallel linear manner on the wall.

In the present invention, the vibrating optical cable is laid and wound around the fence or wall, and the laser sends a laser signal to the vibrating optical cable. When someone invades, the output waveform optical signal of the vibrating optical cable will change, and the optical detector will accept the changed output. Waveform optical signal, the photoelectric converter converts the changed output waveform optical signal into an electrical signal, and the alarm processor analyzes and processes it, and compares it to determine whether it is an intrusion. If it is determined that it is an intrusion, the alarm host will alarm Warning; the present invention lays the vibrating optical cable, and the collector senses the change of the output signal of the vibrating optical cable to judge whether someone has invaded, and the detection and judgment rate is high and accurate.

Description of drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and accompanying drawings.

Fig. 1 is connection block diagram of the present invention;

Fig. 2 is the internal connection block diagram of collector of the present invention;

Fig. 3 is the vibration signal produced when people invade in the present invention;

Fig. 4 is the vibration signal that vehicle passes through in the present invention;

Fig. 5 is the vibration signal that produces when 5 ~ 7 grades of high winds in the present invention;

Fig. 6 is the vibration signal produced when animals and branches hit in the present invention;

Fig. 7 is the vibration signal that produces when raining hail in the present invention;

Fig. 8 is the vibration signal that produces when heavy rain falls in the present invention;

Fig. 9 is the embodiment one of laying wrought iron fence of the present invention;

Fig. 10 is the embodiment two of the present invention laying wrought iron fence;

Fig. 11 is the embodiment one of laying barbed wire fence of the present invention;

Fig. 12 is the embodiment two of laying barbed wire fence of the present invention;

Fig. 13 is the embodiment three of laying barbed wire fence of the present invention;

Fig. 14 is the embodiment four of laying barbed wire fence of the present invention;

Fig. 15 is the embodiment that the present invention lays fence;

Reference signs: 1-alarm host, 11-wireless receiver, 12-warning mechanism, 13-display mechanism, 14-relay, 15-indicator, 16-display screen, 17-memory, 2-vibration sensing mechanism, 21-vibration optical cable, 22-collector, 221-laser, 222-light detector, 223-photoelectric converter, 224-alarm processor, 225-wireless transmitter, 226-frequency filter, 227-detector, 228 - event counter, 229 - frequency setter, 23 - optical cable termination box.

detailed description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, the present invention A fiber optic cable vibration sensing alarm device with a low false alarm rate, comprising an alarm host 1 located in a monitoring room and several vibration sensing mechanisms 2 located outside the monitoring room.

The alarm host 1 is connected to the vibration sensing mechanism 2 through wireless communication. When the vibration sensing mechanism 2 detects a human intrusion, it sends a signal to the alarm host 1 by wireless to give an alarm.

Vibration sensing mechanism 2 comprises the vibrating optical cable 21, the collector 22 and the optical cable terminal box 23 that are arranged on the fence or the wall, one end of the vibrating optical cable 21 is connected with the collector 22, and the other end of the vibrating optical cable 21 is connected with the optical cable terminal box 23.

The collector 22 is provided with a laser 221 for sending a laser signal to the vibrating optical cable 21, a photodetector 222 for receiving the output waveform optical signal sent by the vibrating optical cable 21, and a photodetector 222 for converting the optical signal transmitted by the photodetector 222 into A photoelectric converter 223 for electrical signals, and an alarm processor 224 for analyzing and processing the electrical signals transmitted by the photoelectric converter 223 .

A vibration sensing mechanism 2 forms a defense area, generally 200 to 300 meters as a defense area and is a separate defense area. Just trigger the vibration sensing mechanism 2, and the alarm host 1 will display which defense area someone has invaded, and it will not be caused by a part. When a problem occurs and affects the entire alarm, which vibration sensing mechanism 2 is broken, the alarm host 1 will also have a prompt, so as to facilitate maintenance.

In the present invention, the vibrating optical cable 21 is laid and wound around a fence or wall, and the laser 221 sends a laser signal to the vibrating optical cable 21. When someone invades, the output waveform optical signal of the vibrating optical cable 21 will change, and the optical detector 222 receives This changed output waveform optical signal, the photoelectric converter 223 converts the changed output waveform optical signal into an electrical signal, and the alarm processor 224 analyzes and processes it, and compares it to determine whether it is someone intruding. Intrusion, so that the alarm host computer 1 performs an alarm warning.

When the vibrating optical cable 21 is affected by external vibrations, some characteristics of the transmitted light in the vibrating optical cable 21 will change. Through the optical detector 222, through signal collection and analysis, the characteristics of the light (that is, attenuation, phase, wavelength, polarity, etc.) can be detected. The change of light characteristic, through the analysis and processing of the alarm processor, distinguishes the third-party intrusion behavior from normal interference, and realizes the function of alarm and positioning.

As shown in Figure 3, in the present invention, in order to detect weak vibration, adopt two-core single-mode optical cable to form vibrating optical cable 21, when using laser 221 to emit a bunch of laser light to it, the vibrating optical cable 21 output interference that is made up of these two optical cables Optical signal, when the vibrating optical cable 21 is intruded by the outside world, such as: digging, touching, knocking, etc., the output waveform of the interference light will change, and an interference image will be generated. This waveform change can be detected by the optical detector, and the alarm processor will By analyzing the characteristics of the changing waveform, the real situation of the event can be distinguished, so as to achieve the effect of "intrusion pattern recognition".

Further, the collector 22 is provided with a wireless transmitter 225 for sending an alarm signal and connected with the alarm processor 224, and the alarm host 1 is provided with a wireless receiver 11 for receiving the alarm signal sent by the wireless transmitter 225, which is convenient for wireless communication. Communication, after the alarm processor 224 detects an intrusion, the wireless transmitter 225 sends an alarm signal to the wireless receiver 11 for alarm and warning through the alarm host 1 .

As shown in Figure 4 and Figure 5, the vibration of the fence caused by the passage of surrounding vehicles and the strong wind is a low-frequency vibration. If it cannot be handled well, the false alarm rate is very high. The frequency filter 226 for the vibration signal of 20HZ ~ 200HZ filters out the vibration of the fence caused by the passage of surrounding vehicles and the strong wind, and the resulting vibration signal will not cause an alarm; the collector 22 is provided with a frequency filter 226 for setting The frequency setter 229 that filters out the frequency can perform the frequency filter 226 to filter out the signal of the vibration frequency through the frequency setter 229. We can identify a specific signal by the frequency of the signal, the vibration signal caused by the passing of the vehicle and people climbing The vibration signal caused by climbing the fence has a large difference in the frequency domain, and it is easy to identify the source of false alarms in the frequency domain.

As shown in Figure 6, Figure 7 and Figure 8, false alarms may be caused by several branches hitting the fence, birds falling on the fence, hailstones, etc. accidentally colliding with the fence, etc., through reasonable setting of the alarm processor, large False alarms caused by part of these accidental factors; the collector 22 is provided with a detector 227 for detecting the duration of the vibration signal and an event counter 228 for counting the number of vibrations, and the detector 227 and the event counter 228 are all connected with the alarm processor 224 connection, when the vibration signal passes through the filter of the frequency filter, if the requirements of the detector 227 and the event counter are not met at the same time, the alarm will not be triggered, such as the vibration signal generated when an animal or branch hits, or the hail The vibration signal and the vibration signal produced by heavy rain cannot reach the requirements of the detector 227 and the event counter at the same time, and will not trigger an alarm. When the vibration signal detected by the detector 227 lasts longer than 5 seconds, and the event counter 228 every When the number of vibrations counted per second is greater than 2, it is determined that someone has invaded, and the alarm processor 224 controls the wireless transmitter 225 to send an alarm signal.

The present invention provides an embodiment of the alarm host 1. The alarm host 1 is provided with a warning mechanism 12 and a display mechanism 13 that are both connected to the wireless receiver 11. The warning mechanism 12 includes a connected relay arranged inside the alarm host 1. 14 and the indicator light 15 that is arranged on the alarm main frame 1; Display mechanism 13 comprises the display screen 16 that is connected and stores the memory 16 that electronic map information is stored; Which defense zone has people's invasion, and which vibration sensing mechanism 2 just sends alarm signal, reports to the police The relay 14 that monitors that defense zone on the host computer 1 will control its indicator light 15 to light up and sound an alarm at the same time, and the display screen 16 will display the location of the defense zone according to the electronic map information in the memory 16; Input port, signal transmission adopts low-resistance transmission line technology, reliable transmission and strong anti-interference ability. There is a computer output interface to connect with the computer to make the function more powerful. It has a printer interface to print perimeter alarm information in time; the indicator light 15 is LCD blue screen display , the display content is rich, the information is simple and clear, the display screen 16 has a serial output port, which can be conveniently connected with the memory 17, displays the electronic map and the specific location, and the alarm sound can be selected from silent and audible alarms; when the alarm is provided, there is a relay 14 electric shock output, Control indicator lamp 15 warns. Each input port of the alarm host 1 has photoelectric isolation, adopts a double-electric structure, and has stronger anti-interference ability.

The present invention provides an embodiment in which the vibrating optical cable 21 is laid on the wrought iron fence. As shown in FIG. Connected to the wrought iron, the vibrating optical cable 21 is connected to the wrought iron fence in an S-shaped form, that is to say, when the vibrating optical cable 21 is laid on the wrought iron, since the wrought iron is relatively hard, the number of vibrating optical cables 21 should be increased to ensure reliable The intrusion signal is sensed, and by analyzing the characteristics of the intruder's movement over the fence, it is recommended to lay a vibrating optical cable 21 along the horizontal iron railings at the top, middle and bottom of the iron art.

As shown in Figure 10, a second example of iron fence laying, in the iron fence, some iron art will be installed on the pillars, if the pillar area is not large, you can directly cross the pillars when laying the vibrating optical cable 21, but some pillars are horizontal The section is relatively large, and it is easy for intruders to use this area to enter, so such area must be protected. Iron nets can be installed on the top of the pillars. When laying optical cables, vibrating optical cables 21 are laid on the iron nets.

If it is necessary to improve the alert level, one or more vibrating optical cables 21 can be laid in the middle part of the wrought iron fence, and the collector 22 can be fixed on the wrought iron pillar. Securely attaches to medium. If there is a wider brick pillar between the two wrought iron arts, then the optical cable terminal box 23 can be fixed on the pillar and fixed with expansion bolts.

When the vibrating optical cable 21 is laid on the barbed wire fence, the collector 22 and the cable terminal box 23 are fixedly connected to the barbed wire fence, and the vibrating optical cable 21 is connected to the barbed wire fence in a straight line.

The present invention provides an embodiment in which the vibrating optical cable 21 is laid on the barbed wire fence; as shown in Figure 11, a barbed wire fence is laid in Example 1, which is laid in a straight line, and the required vibrating optical cable 21 is less, which is suitable for the alert level Lower places; this laying method can detect the intrusion method of climbing and overturning. Binding straps tightly fix the optical cable and the iron mesh grid.

As shown in Figure 12, the second example of laying a barbed wire fence adopts the method of laying multiple optical cables horizontally. This laying method can detect intrusion methods such as climbing, overturning, cutting nets, and ladder-assisted overturning, and can increase the size of the fence. The sensing area is large enough to effectively detect weaker intrusion signals. This method is suitable for places with higher security levels. The vibrating optical cable 21 is laid along the top of the fence. Pave several roads more, the interval of vibrating optical cable 21 laying can be evenly distributed by iron net height.

The collector 22 can be fixed on the pillars or iron nets at the joints of the barbed wire, about 1.5 meters away from the ground. In order to avoid false alarms caused by loose installation of the collector 22, a strong and firm pillar or a tightly pulled barbed wire should be selected as the installation point; Fastening fixtures can be selected for fixing, and binding wires can also be used for fixing, but no matter which method is adopted, the collector 22 must be tightly and reliably fixed on the medium.

As shown in Figure 13 and Figure 14, a barbed wire fence laying embodiment three and four, the sensitivity of the vibrating optical cable 21 is consistent in the entire defense area, but the tightness of the medium will change, so when laying the vibrating optical cable 21 The influence of this factor should be considered. The induction area of the vibrating optical cable 21 laid on a tighter medium is larger than that of an optical cable laid on a looser medium. When the optical cable is 21, it can be laid according to the method shown in Figure 13 and Figure 14, and the laying method in Figure 14 is more sensitive than the method in Figure 13. Whether it is necessary to use this method to increase the sensitivity of the reinforced part of the defense area should be determined through field tests Sure.

When the vibrating optical cable 21 is laid on the enclosure wall, the collector 22 and the optical cable terminal box 23 are connected at a height of 1.5 to 2 meters from the ground inside the enclosure wall, and two vibrating optical cables are laid on the wall in a parallel linear manner on the outside of the enclosure wall twenty one.

As shown in Figure 15, an embodiment of laying on the fence, the common intrusion methods for the fence are wall cutting and overturning.

Chiseling a wall is a common way of intrusion against a fence, and the vibration optical cable 21 can collect the tiny vibrations generated when the intruder chisels a wall. Construction workers can lay two vibrating optical cables 21 on the wall in a parallel line mode. The height of the wall should not exceed 2 meters. The vibrating optical cables 21 should be fixed at 0.5 meters and 1.5 meters from the ground. When the height increases by 1 meter, a vibrating optical cable 21 needs to be added, and the vibrating optical cable 21 is horizontally fixed in the middle of the area. In order to ensure that the vibrating optical cable 21 can sense the vibration generated when the wall is drilled, it is necessary to ensure that the wall is firm, the bricks cannot be loosened, and the optical cable should be tightly attached to the surface of the wall, which can be fixed every 50 centimeters with wire clips.

If the intruder enters by climbing over, the vibration generated in this process is extremely weak, and the signal sensed by the vibration optical cable 21 is not enough to be used as a basis for judging the intrusion. Rolling net or standing net to increase the intensity of vibration and the sensing area. Buckle net material generally adopts Φ3, aperture is the iron net of 20cm X5cm, when fixing vibrating optical cable 21 on the buckle net, should pay attention to vibrating optical cable 21 is fixed on the top of the buckle net outside the enclosure wall, when needing to raise alert level, can vibrate optical cable 21 more Lay several roads.

Collector 22 should be installed in the height of 1.5 meters from the ground inside the wall, and be fixed on the wall with expansion bolts.

In addition, for the buried type, the collector 22 can collect the signal of the sensing optical cable buried under the surrounding surface medium such as lawn, sand, gravel, etc. When laying the vibrating optical cable 21, the method of laying multiple vibrating optical cables 21 in parallel along the perimeter can be adopted, but because the texture and hardness of different surface media are different, the laying intervals of the vibrating optical cables 21 are different.

In the present invention, the collector 22 is an intelligent switch output alarm device, which forms an alarm system with the vibrating optical cable 21 and the alarm host 1. The alarm system has strong anti-interference ability and good reliability. In addition to intrusion, it can also shield false alarms caused by most environmental factors. The circuit part of the collector 22 has adopted safe and reliable lightning protection measures. In addition, the shell of the collector 22 is made of high-strength engineering plastics, and the material is light. And has reliable sealing and waterproof performance.

In the present invention, the vibrating optical cable 21 is used as the sensing unit, and the external vibration is used to generate an alarm signal; the use of the vibrating optical cable 21 as a sensor can better eliminate the interference of the external strong electric field and magnetic field, and the system reliability is high; the vibrating optical cable 21 is in the transmission process. Low loss, high stability, the maximum detection distance of each zone is 1000m; the vibration optical cable 21 is a passive detector, suitable for inflammable and explosive places; the vibration optical cable 21 is suitable for various complex terrains, and can detect irregular surrounding The detection of boundary defense areas; the vibrating optical cable 21 can be directly laid on various iron nets to prevent climbing; the vibrating optical cable 21 has high sensitivity and can be directly buried in the ground; the collector 22 can collect two different media defense areas.

The vibrating optical cable 21 used in the present invention is passive and cable-shaped, and is especially suitable for installation and use in places with complex terrain, warehouses for inflammable and explosive goods, irregular perimeter areas, and places where power supply is not suitable; it can also be embedded in walls, Buried in the ground, it can be used as anti-cutting and illegal intrusion prevention for bank vaults, ammunition depots and other important parts; it can also be used as a cordon for field workplaces and camps.

The operation of the present invention does not affect the normal activities of personnel near the warning line.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. a kind of optic cable vibration sensor alarm of low rate of false alarm, it is characterised in that including the alarm master in Control Room Machine and several vibrating sensing mechanisms outside Control Room；The alarm host machine carries out channel radio with the vibrating sensing mechanism Letter connection；The vibrating sensing mechanism includes vibration optical cable, collector and GPZ, one end of the vibration optical cable and institute Collector connection is stated, the other end of the vibration optical cable is connected with the GPZ；It is provided with and is used in the collector The laser of laser signal is sent to the vibration optical cable, for receiving the output waveform optical signal for vibrating optical cable and sending Photo-detector, the optical signal for photo-detector transmission to be come change into the optical-electrical converter of electric signal, for by described in The alarm processor that the electric signal that optical-electrical converter transmission comes is analyzed and processed.

2. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that described to adopt The wireless launcher for sending alarm signal and being connected with the alarm processor is provided with storage, in the alarm host machine It is provided with the wireless receiver of the alarm signal sent for receiving the wireless launcher.

A kind of 3. optic cable vibration sensor alarm of low rate of false alarm according to claim 1 or 2, it is characterised in that institute State the frequency filter being provided with collector for the vibration signal that rejection frequency is 20HZ ~ 200HZ.

4. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 3, it is characterised in that described to adopt The set of frequency device of the rejection frequency size for setting the frequency filter is provided with storage.

5. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 3, it is characterised in that described to adopt It is provided with storage based on the detector by detecting the vibration signal duration and the event by being counted to vibration number Number device, the detector, event counter are connected with the alarm processor.

6. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 5, it is characterised in that when described The vibration signal duration that detector detects is more than 5 seconds, and the vibration number of event counter statistics per second simultaneously During more than 2 times, the alarm processor controls the wireless launcher to send alarm signal.

A kind of 7. optic cable vibration sensor alarm of low rate of false alarm according to claim 1, it is characterised in that the report The equal warning mechanism and indication mechanism being connected with the wireless receiver is provided with alert main frame, the warning mechanism includes being connected What is connect is arranged on the relay of the inside of the alarm host machine and the indicator lamp being arranged in the alarm host machine；The display machine Structure includes the display screen being connected and the memory for being stored with electronic map information.

8. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that in iron skill On fence laying vibration optical cable when, the collector and GPZ are fixedly connected with iron skill, it is described vibration optical cable with The form for walking S types is connected on the iron artistic fence.

9. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that in iron wire On netting fence during laying vibration optical cable, the collector and GPZ are fixedly connected with chain link fence, described to shake Dynamic optical cable is connected on the chain link fence with form of straight lines.

10. the optic cable vibration sensor alarm of a kind of low rate of false alarm according to claim 1, it is characterised in that enclosing On wall during laying vibration optical cable, at the height for liftoff 1.5 ~ 2 meters of the inner side that the collector and GPZ are connected to enclosure wall, Laid in the outside of enclosure wall using parallel line type mode on metope described in twice and vibrate optical cable.