KR100650629B1 - Operating method of gun detecting system - Google Patents

Abstract

A driving method of a gun detection system is provide to minimize interference by classifying master and slave so that a slave detecting system is operated according to an operation time set in a master detecting system. A transmitting coil and a receiving coil are implemented in both panels of a gate. When a passenger passes through the gate, a gun detection system generates an electronic field, and detects a gun according to electronic field scattering due to the passenger. The set state of a gun detection system is detected(S10). If the set state is master, the transmitting and sampling time of the electronic field are set(S12), and a synchronous signal is transmitted to the gun detection system(S14). If the set state is slave, the transmitting and the sampling time of the electronic field are set according to the synchronous signal(S18,S20). When the passenger passes through the gate of plural gun detection systems, the electronic field is transmitted according to the transmitting and sampling time, and the gun is detected(S16).

Description

Operation method of firearm search system {OPERATING METHOD OF GUN DETECTING SYSTEM}

1 is a block diagram showing a conventional pistol detection system.

2 is a view showing a gate structure of a conventional firearm search system.

3 is a view illustrating a gate installation state of a plurality of firearm search systems.

4 is a flowchart for sequentially explaining a driving method of the firearm search system according to the present invention.

   -Explanation of symbols for the main parts of the drawings-

1 gate 2 first panel

3: 2nd panel 15: Transmission coil

16: receiving coil 17: differential space

18: Zero adjustment part 19: Aluminum cutoff part

The present invention relates to a driving method of a firearms retrieval system, and more particularly, when a plurality of firearms retrieval systems are installed in adjacent locations, the operation time of the plurality of firearms retrieval systems differs from each other and affects mutual electromagnetic fields. The present invention relates to a method of driving a firearm search system that prevents a malfunction during firearm search by dividing it into a master and a slave so that the slave search system is operated in synchronization according to an operation time set in the master search system.

In general, a firearms search system is installed in a specific security area such as an airport or a national secret bureau to search for firearms in an occupant's belongings without providing a direct search of the human body.

In recent years, in the case of free gun holder countries such as the United States, gun crimes in public places such as supermarkets are rapidly increasing, and the necessity of providing a firearms search system that searches only firearms is increasing to prevent this.

The firearms retrieval system generates an electric field for the person entering and exits, and receives a certain electric field and analyzes the change range of the electric field to detect and analyze only the firearm to determine whether the person possesses the firearm and generate an alarm.

1 is a block diagram showing the configuration of a "pistol detection system" of Patent Publication No. 10-0228251 (published on November 01, 1999) to which the present applicant has a right as a firearm search system.

A power supply 110 for supplying power required for each part of the system as shown here; Main control unit 120 for overall control of the system, such as alarming and automatic dialing according to the shooting operation control and emergency switch (ERSW1) on or wireless transmission signal according to whether the pistols are detected; A magnetic force generator 130 for generating a constant magnetic force line according to the control signal of the main controller 120; A gate 140 configured to generate a predetermined magnetic force line on one side by the magnetic force generator 130 and generate an induced voltage by the magnetic force line on the other side; A magnetic receiving unit 150 which detects the presence of a pistol by detecting the voltage from the gate 140 and applies the same to the main control unit 120; A camera 160 installed near the gate 140 and photographing a person carrying the pistol according to a control signal of the main controller 120 when the pistol is detected; A time generator 170 for outputting time information; The video signal processor 180 mixes and stores the video signal from the camera 160 with the time information of the time generator 170, and then outputs the stored video signal to a monitor or a video recorder when the replay function is selected. Wow; An automatic dialing unit 190 for automatically dialing a predetermined number according to the control signal of the main control unit 120; An alarm driver 200 for controlling driving of an alarm device connected to the outside of the main body 100 according to the control signal of the main controller 120; Searching lamp 210 for firing a predetermined light to the gate 140 under the control of the alarm driver 200 during the photographing operation in the camera 160; Indoor warning light 220 for firing a predetermined alarm sound and lights in the room under the control of the alarm driver 200 when pistols are detected; An outdoor warning light 230 that emits a constant alarm sound and light outdoors according to the control of the alarm driver 200; Key input unit for selecting and adjusting the functions of the system parts, such as volume control and on / off control, next dialing on / off control, telephone number set and reception magnetic sensitivity control of the indoor warning light 220 and outdoor warning light 230 ( 240; A wireless transmitter 250 capable of wirelessly selecting a desired function; The wireless receiver 250 is configured to receive a transmission signal according to a function selection from the wireless transmitter 250 and apply it to the main controller 120.

Accordingly, the magnetic field generating unit 130 installed at one side of the gate generates an electromagnetic field and receives the electromagnetic field scattered by the metal material carried by the person passing through the gate in which the electromagnetic field is generated at the magnetic receiving unit 150 to measure its level. By detecting the possession of pistols and taking pictures of the pistol holders' impressions, alarm sounds and automatic dialing can be made to prevent and deal with crimes caused by weapons. have.

In addition, the gate of the pistol detection system as described above has a considerable intensity in order for the generated electromagnetic field to be transmitted to the receiving coil because the electromagnetic field is biased to the transmitting coil, and the transmitting coil generates only the electromagnetic field for detecting the metal of the firearm. However, since the receiving coil detects the electromagnetic field scattered by the metal, a blind spot is formed in the transmitting coil and the receiving coil in which the metal of the firearm is not scattered or falls short, and there is a problem in that no firearm is detected in the blind spot.

On the other hand, in such a pistol detection system, when detecting all people carrying a metal of more than the mass equivalent to a standard pistol, a large amount of metals and non-metals such as mobile phones, key packs, pocket computers, and walkmens are always carried by people. It is common to check whether security personnel are firearms because they react unconditionally to the magnetic field. In addition, in the case of a metal body having a volume similar to a firearm, there is a problem that is suspected to innocent visitors due to a mistake in firearms, and a firearm crime cannot be prevented if it does not respond to a magnetic field.

Accordingly, the present applicant is to solve the problem, the gate structure in the patent application No. 10-0429471 (published on May 3, 2004) registered in the patent application on December 28, 2000 as shown in Figure 2 The first panel 2 and the second panel 3 are disposed to face each other, and the transmission coil 15, the reception coil 16, and the differential are arranged on the first to second panels 2 and 3, respectively. The space 17, the zero-point control unit 18 and the aluminum blocking unit 19 are formed to be embedded to remove blind spots that may occur in each sensing area, as well as to carry the user through the gate 1. By separating firearms and non-gunarms metals, the firearms can be searched more reliably, thus ensuring more reliable safety at airports, national agencies, banks, etc., and protecting ordinary people who do not possess firearms. I could do it.

However, when installing the firearms retrieval system, there are a plurality of doors in adjacent locations. When a plurality of firearms retrieval systems are installed adjacent to each door as shown in FIG. 3, each firearms retrieval system operates independently. When the electromagnetic field is generated by one of the search systems, when the electromagnetic field is received by the other search system, the electromagnetic field is substantially scattered in the gate 1, thereby affecting the received electromagnetic field. There is a problem that causes malfunction as measured.

The present invention has been made to solve the above problems, and an object of the present invention is to affect the mutual electromagnetic field as the operating time of the plurality of firearms search systems are different from each other when a plurality of firearms search systems are installed in adjacent locations. In order to solve the problem of malfunctioning, it is divided into a master and a slave so that the slave search system is operated synchronously according to the operation time set in the master search system. .

In order to achieve the above object, the present invention provides a plurality of firearms retrieval systems for transmitting firearms and receiving coils respectively formed on both sides of the gate to generate an electromagnetic field when passing through the gate, and to receive scattered electromagnetic fields to retrieve firearms. Determining a setting state of the firearms retrieval system; setting a transmission time and a sampling time of the electromagnetic field and transmitting a synchronization signal to the firearms retrieval system set as a slave; In the case of setting the transmission time and sampling time of the electromagnetic field according to the synchronization signal transmitted from the firearm search system set as the master, and searching the plurality of firearms according to the transmission time and sampling time set according to the synchronization signal of the firearm search system set as the master When passing through the gate of the system, It characterized in that new and made of a step of retrieving the gun samples.

In the present invention, the synchronization signal transmitted and received between the firearms search system set as the master and the firearms search system set as the slave may be transmitted via wire or wirelessly.

According to the present invention, a plurality of firearms retrieval systems are installed adjacent to each other, and other firearms retrieval systems set as slaves are synchronized and transmitted and sampled according to the electromagnetic field transmission time and sampling time set in the firearms retrieval system set as a master. As they operate at different times, they affect sampling and prevent malfunction.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and the same parts as in the conventional configuration using the same reference numerals and names.

4 is a flowchart illustrating a driving method of the firearm search system according to the present invention.

In this case, first, when a plurality of firearms searching systems having transmitting coils and receiving coils are formed adjacent to each other in the panel on both sides of the gate, the operation state of the firearms searching system is set to master and slave, respectively. The firearm search system determines the set state (S10).

In this case, when the setting state of the firearm search system is the master, the transmission time and the sampling time of the electromagnetic field are set by adjusting an operation time for minimizing periodic monitor noise and the like (S12).

The synchronization signal for synchronizing the transmission time and the sampling time set as described above with the firearm search system set as the slave is transmitted (S14).

On the other hand, when the setting state of the firearms retrieval system is set to the slave checks the synchronization signal transmitted from the firearms retrieval system set as the master to receive the synchronization signal (S18).

Then, the transmission time and the sampling time of the electromagnetic field are set according to the synchronization signal (S20).

Then, each firearm search system, that is, the firearm search system set as the master and the firearm search system set as the slave, determines whether there is a person passing through the gate, and generates an electromagnetic field according to the synchronization signal transmitted from the master and samples the gun. (S16).

As such, the adjacent firearms searching systems operate in synchronization with each other, eliminating the case of transmitting an electromagnetic field from another firearms searching system while sampling, and transmitting the same and sampling the same, thus affecting the received signal. Nevertheless, having a gun solves a problem of malfunction.

As described above, the present invention is divided into a master and a slave in order to solve the problem that the operation time of the plurality of firearms searching systems are installed in adjacent positions, and thus affects mutual electromagnetic fields. Since the slave search system is operated in synchronization according to the operation time set in the master search system, there is an advantage that the malfunction of the firearm search can be prevented and the reliability of the firearm search can be increased.

Claims (2)

In a plurality of firearms retrieval system for transmitting firearms and receive coils respectively formed on both sides of the gate to generate an electromagnetic field when passing through the gate to receive the scattered electromagnetic field to retrieve the firearms, Determining a setting state of the firearm search system; Setting a transmission time and a sampling time of the electromagnetic field and transmitting a synchronization signal to the firearm search system set as a slave when the setting state is a master; Setting the transmission time and the sampling time of the electromagnetic field according to the synchronization signal transmitted from the firearm search system set as the master when the setting state is the slave; Searching for a firearm by transmitting and sampling an electromagnetic field when passing through the gates of the plurality of firearms retrieval systems according to the transmission time and the sampling time set according to the synchronization signal of the firearm retrieval system set as the master; Driving method of a firearms search system, characterized in that consisting of. The method of claim 1, wherein the synchronization signal transmitted and received between the firearm search system set as the master and the firearm search system set as the slave is transmitted via wire or wireless.

Images