JPS58163094A - Section maintenance system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a system that uses structural moment detectors for the detection, warning, and characterization of sources of intruders within relatively large geological areas.

Structural moment detectors are generally known in that they do not sense linear force movements but sense angular displacements of the sensor relative to the other end at 11/ii8. For example, Itol
llre Mikuni Special Needle No. 3,229,511” The
13structural Rlgidity S*na
er” and Home 9th Army AirForc@System
Command (Frank J-5eilsr R
-App published by e5earch Laboratory, October 1975 8RL-TE-75-0017)
licatlons in Non-珈5truat1
ve 'l'es + ting'', the disclosure ceremony is 9, and 0
U.S. Patent No. 4°159.422 (197
June 26, 1999), No. 4.164,149 (197
(dated August 14, 1999) K is also disclosed.

measuring and recording the effects of forces acting on a structure;
A device using a structural moment detector is described in the above-mentioned publication. For example, the Roasire patent describes an attitude control scheme in which structural moment detectors sense the wing loading, t, and control the attitude of the aircraft to maintain the wing loading within safe limits.

A structural moment detector used in this document refers to a device that measures the integral of a structural moment between two points on a structure.This is well known, but for clarity, it is 1 to 6 and the explanation regarding tLvc will be used to explain typical structural moment detectors. Other forms of structural moment detectors known to those skilled in the art are essentially similar devices.

The structural moment mmki is basically an automatic collimator, which is insensitive to linear force movements, but is sensitive to angular deflection of one end of the sensor relative to the other end.

Referring to FIG. 1, the structural moment detector consists of two parts, which are mounted on a beam 10 at separate locations. One part 11 has a support bracket 12 which supports the LED 13, the collimating lens 14 and the binary photodetector 15. The other part 16 of the structural moment detector consists of a support bracket 17, which supports the front plane inkstone 18. Both sections 11 and 16 are connected by bellows or other hood members (not shown for simplicity) to block external light. The LED 15 emits an infrared light beam 19t which is collimated by the collimating lens 14. The collimated beam 19m enters the sharp point 18, passes through the collimating lens 14t, as shown by the dotted line, and returns to the photoelectron a15.

The angular displacement rather than the linear movement of ζ sea 18 is photoelectric 1I.
The mt variation of the infrared radiation reaching each of IllL15 becomes VC. The difference in voltage output of the photoelectric a15 will be proportional to the angular displacement of the icouple 18 with respect to the cell 15.

When mounted on a building structure, such as a floor, wall or wall beam, this structural moment detector detects the beam with a resolution of 1 millisecond (4.85 x 10" radians) in a range of 16 arc seconds. Displacement sound can be measured.Although such a high degree of resolution is not required, this device can be manufactured to have a resolution of at least 1 arc second with a 6@ Dynantz range.The father device uses direct current. It can work from 50MHz to 50MHz, but the frequency limit is determined by the frequency limit of the photovoltaic cell.

A typical circuit used in combination with the main part of the mechanical moment extractor shown in FIG. 1 is shown in FIG. 2.6. FIG. 2 is a schematic diagram of the correct LEI driver circuit, which is a pure constant A typical suitable output circuit, shown in FIG. 6, is an analog output circuit consisting of a first power amplifier with common mode rejection t to achieve linear operation of the photovoltaic cell.

The operation of a structural moment detector can be explained by a simple table example in which a charged beam is attached to a cantilever, and the detector is mounted at points a and b near the supporting end of this cantilever. . Now, if the displacement of the beam as the angle between the clothing surface and the point a and b is measured as θ, the output voltage of light *a is proportional to this angle and is expressed as follows according to area moment theory.

However, Moment given between M two points a and b: Elastic constant ■ = Moment of inertia θ: Angle formed by surface tangents at points a and b: Point a% b
amikIti in between! Distance Now, the load xp is 11t! If the distance between a and 5 is δ, the sensitivity of the structural moment detector is
? A load is placed on one end of an 8-inch (about 20 cm) cantilever beam. Then, if the device is mounted near the support point of the beam so that point aSb is 1.5 inches (approximately 3.75 crn) me, then at this load, vout = 60 millivolts θ = 1.3 x 10' radians. Totoru.

Without changing the total moment ′ that occurs between two points of the structure, a
Although it is not possible to apply a load to the body, the moment detector of this structure can be used as a sensor that is far more accurate and fringe sensitive than conventional sensors.

The overall system of the invention is shown in FIG. Behavior of a structure subjected to the action of plowing force as shown in Figure 4 4
1 is a structural moment detector (SM) with KtIL on the structure.
D and M). This array 42 is placed on the structure gradually emitting a primary electricity 18 43, which is proportional to the parameter of the behavior in question. The primary electricity 91 signal 46 is a signal to a processing and buffering device that modifies the information content of the eleventh signal 46 (e.g., removes background noise,
It includes electronic circuitry for removing signal components induced by other forces, and circuitry for electrically isolating the sensor from the rest of the system. The processed signal 45 is an analog-digital fm! 46, where the analog signal 45 is converted into a digital format compatible with a custom digital processor, Vcog, editor, and/or display unit. The digital signal 47 is then sent to a data processor 48, typically a single frame computer, that accepts the digital data, processes it into a predetermined programmable form, and processes the digital data into a digitized form. Converting given system data into a digital representation. This digital Kfi data 4
9 is sent to a data storage/collection device 50 if necessary;
A permanent record of one or all of the data needed for later use may be created, with the addition of manual editing capabilities. The collected data 51 is sent to the data display unit 52 if necessary (required data is displayed visually, but the data processing device ft4B converts the necessary data and displays it in nine formats). The means for digitizing, recording, editing, and/or displaying the data may be modified as required. Feedback loops 56 may also be provided, if necessary, to feed back information in one stage consisting of may be fed forward to other stages to provide increased accuracy, prediction, forecasting, and similar functions. These feedback paths may be electrical, optical, mechanical, and/or human judgment and adjustment. May include.

In accordance with the present invention, a system is provided for detecting, alerting, and detecting sources of intrusion into security zones over relatively large geographic areas.

The high sensitivity of the SMD allows it to be used as an earthquake detector, and in the present invention this detector can be incorporated into the system of the present invention to obtain information on the type of enemy, its location and its movement.

This SMD is mounted on a diaphragm and used as a ground sensor. The high sensitivity of SMDs, combined with the various design parameters of the diaphragm (material, thickness, dimensions, mounting technology), results in ground-based sensors of remarkable performance.

If this is stretched appropriately, it is possible to create a form of vibration that has the characteristics of a large amount of movement near the sensor. The presence of this signal is used to indicate movement, and the frequency of the signal is analyzed to generate information regarding the source of the intrusion. Using triangulation and/or the proximity of various sensors, the position and direction of movement of a moving body can be determined.

The system is capable of detecting and monitoring movement above ground or in underground tunnels. The sensors may be wired to the process equipment or may be self-contained battery powered and optically or electronically coupled to the monitoring station and/or aircraft.

FIG. 5 shows one application form of an embodiment of the present invention. Pan cage 351 will be installed near the path in all the jungles. Enemy tanks are detected. The information is transmitted by radio to the circling aircraft electronics unit 65B, which instructs the fighter aircraft 654 to attack the tank in question.

FIG. 6 shows another form of operation. Sensor 661 is wired and installed to electronic processing and display system 664. Tank 662 and soldiers 664 are detected and tracked.

Tanks and humans can be distinguished from each other based on the form of their frequencies.

The off-line diagram shows a partition security system that fully utilizes the same principles as the embodiment shown in Figure 5.6. This security system is used to protect various large areas such as private property, factories, grounds, oil fields, airports, communications facilities, etc., or to secure geographical areas that need to be protected against unauthorized access.

The zone security system according to the embodiment of the present invention has the function of guarding against unauthorized entry into the security area 10, and furthermore, prevents unauthorized entry into the so-called "no-man's land" 11 or any action therein. and take precautions against entering and acting in the vicinity area 12. Multiple SMD401 are in the proximity zone 12
Bury separately in the ground outside of the area. Other SMDs 402 are buried underground in the no-man's-land 11, and other SMDs 403 are installed on the pillars of the fence 10A around the "no-man's land".

SMD401.402 and 406 are suitable cables 40
4 to one or more command centers 405, which are located within the secure area 10 and contain necessary electronics, microprocessors, software, etc.

By the triangulation method, it is determined and located that the unauthorized entry or unauthorized action is within the plurality of sections 406, the uninhabited land f11, and the adjacent zone 12 among the plurality of areas surrounding the security area 10.

The zone security system of the present invention provides information on the discrimination and nature of entry and activity, the location of the entry, the approach to the secure zone, and also provides a communication system within the various areas of interest. This parcel security system has low maintenance costs, low operating costs, and can be used to maintain high performance even in places with different geographical conditions such as deserts, wetlands, and cities.

Each part of this system can be easily transported even over rough terrain, and this system inherently has fewer false alarms.

Any unauthorized intrusion or action within the proximity area 12 will be handled by the control center 40.
5, a warning will be raised, and any entry into uninhabited areas or secured areas will require appropriate reinforcements, such as special security systems and the allocation of anti-epidemic forces.

The proximity area is typically 1.5m to 15ff+ (5 to 50 feet) from the perimeter of the coverage area, depending on the nature of the coverage area.
? The no-man's land is approximately 1.5 to 6 meters (5 to 10 feet) wide. Division is from 22.5m to 300ff
+ (75-100 feet).

[Brief explanation of the drawing]

Figure 1 is a sectional view of a typical structural moment detector used in the system of the present invention, Figure 2 is a schematic diagram of a typical LED driver circuit of the structural moment detector in Figure 1, and Figure 6 is the detector in Figure 1. Figure 4 is a schematic diagram of the entire system of the present invention, Figure 5.6 shows an embodiment of the present invention used for force detection, and off-line diagrams are shown in Figures 5 and 6. 1 is a diagram illustrating a partition security system using the same principle as the embodiment described above; FIG. 13...LED 14...Collimating lens 15...Photovoltaic cell 351.361...Sensor 656...Turning aircraft 654...Fighter plane 662...Tank 364...Soldier 10... Security area 11...Uninhabited area 12...Adjacent area 401.402.403...SMD 405...Command center 406...Division area 5 Engraving of drawing (change 'j'+' to 'Z-') 1.)'l'r
t= ,1 JJI'xt=#3 Kazuo Wakasugi, Commissioner of the Japan Patent Office1. Indication of the case 1982 Patent Application No. 225746 2, Title of the invention Area security system 3, Person making the amendment Relationship to the case Applicant name David Earl Scotto and 1 other person 4, Agent 5, Date of amendment order March 29, 1980 6, ? *
Correct target Book III Power of attorney All drawings 7, contents of amendments Engraving of the drawings as shown in the attached sheet (no changes to the contents). 651-

Claims (1)

Claims: A parcel security system for locating and characteristically detecting sources of intentional and/or actual intrusion into a security parcel in a relatively large geographic area, the system comprising: a) ground-based intrusion; a plurality of structural moment detectors arranged at adjacent and spaced points to detect intruders and moving objects near and within the area; b) full processing of the output signals of the structural moment detectors; C) means for further processing the processed signal segment to eliminate signal components representative of the effects of extraneous seismic forces generated by other than the intruder and/or the behavioral object; and C) means for further processing the processed signal segment and Or is it completely combined with a processing means that creates a second blowout sound that senses the seismic force generated by the moving body?
Features a partition security system.