KR20060030138A - Remote monitoring system of the robbery prevention - Google Patents

Abstract

The present invention relates to a remote anti-theft device for monitoring the theft state of the object located in a remote place, the area where the indoor storage area is limited to temporarily keep the object outdoors.

At this time, as a way to prevent theft from intruders, a regular watchman was fixed, fixed with thick wrapping paper and straps and patrolling the site every time.

Accordingly, the present invention attaches a predetermined device to an object stored outdoors, and detects the shaking and moving distance of the object when the object is stolen from the intruder, and generates an alarm sound at the site, and stores it outdoors in a terminal device of a monitoring station located at a remote location. Frequency-modulated information of the belongings is transmitted over the air.

The terminal equipment located in the remote indoor area receives a signal to generate an alarm sound and maintains communication continuously between both terminals so that the separation distance measurement is automatically performed according to the moving distance of the stolen object.

The supervisor can protect the valuable property as well as protect the valuable property by operating the auxiliary power of the terminal device and directly carrying it and moving it to track the location of the stolen goods within the range where communication can be made with reference to the measured distance and direction. You'll be free to worry about it.

   Identification terminal, alarm terminal, shock detector, alarm generator, 1st and 2nd frequency modulation and demodulator, 1st and 2nd transmission and reception antenna, 1st and 2nd central processing unit, 1st and 1st external communication terminal, detector

Description

Remote monitoring system of the robbery prevention}

1 is a block diagram of the identification terminal according to the present invention.

2 is a block diagram of an alarm terminal according to the present invention.

3 is a block diagram of the identification apparatus of a conventional example.

4 is a layout view consisting of a plurality of identification terminal and one alarm terminal according to the present invention.

5 is a signal flow diagram for transmitting information of the identification terminal and the alarm terminal period in accordance with the present invention.

6 is a flowchart illustrating a process of delay signal processing for distance measurement between a recognition terminal and an alarm terminal period according to the present invention.

In the present invention, the storage place of the object is narrow in the building, and some items are temporarily stored outside the building and outdoor special events such as concerts occur, and the identification terminal of the present invention is attached to the place where the object is left unattended. When the theft is caused by an intruder, it detects the state of theft and generates an alarm sound at the site, and at the same time, it relates to an anti-theft device that notifies the state of theft of the object to a remote alarm terminal

The conventional anti-theft device is a structure capable of unidirectional communication for wireless remote start and theft prevention of a vehicle as shown in FIG. 3, when an impact is applied to an object by an intruder, the impact detector 303 is operated immediately. An alarm sound is generated in the alarm unit 305 of the field, and the owner of the object determines whether the object is stolen based on the alarm sound. In addition, when a command is performed by frequency-modulating a signal as a means for controlling an object located in a remote wireless section, the signal is received from a receiving antenna 301 at a remote location, and the original signal is restored to the frequency demodulator 302 to perform central processing. The device 307 is notified. The one-way communication method that analyzes the signal and executes a command to the device is used.

Under these schemes, areas that are not equipped with remote monitoring stations capable of two-way communication may respond quickly because intruders may be surprised to hear the alarm and relocate themselves, or remote locations may not be able to hear the alarm. There was a limit.

In addition, there was a problem in that a lot of time and money were required to establish a wired surveillance network as a means for preventing theft of objects stored in remote locations for a limited time in a region where a special event such as an outdoor concert occurred.

       The present invention was created in order to solve the above-mentioned conventional problems, and attaches a recognition terminal near the temporarily stored object in the outdoor of the building, and generates an alarm sound when the stolen state of the object is detected by the intruder. Immediately after transmitting theft information wirelessly to the alarm terminal located indoors of the remote location, it is characterized by generating a notice and alarm sound that can be confirmed to the site monitor.

       Another object of the present invention is to measure the distance and signal in real time within the area capable of transmitting and receiving signals between the two terminals by continuously maintaining the wireless communication with the alarm terminal when the object attached to the identification terminal is moved by theft Since the direction measurement according to the intensity is provided, the supervisor can track the movement path of the stolen object while moving freely by operating the auxiliary power supply of the alarm terminal.

        In addition, in the area where the goods are distributed to several places, a unique identification code is assigned to a plurality of identification terminals and attached to each nearby object, and the product status information is wirelessly maintained while maintaining communication sequentially at regular intervals with a remote alarm terminal. Characterized in that the transmission.

In order to achieve the above object, the present invention will be described in detail with reference to the accompanying drawings, preferred embodiments. In the area where the goods 10 are stored outside the building 40 or where a special event occurs for a limited time, a lock is installed due to theft, and a site monitor is arranged to patrol at regular intervals.

Therefore, the present invention attaches the identification terminal 100 near the object 10 stored as shown in Figure 4 and periodically checks these conditions in the indoors of the remote location equipped with the alarm terminal 200.

1 shows an internal structure of the identification terminal 100 according to the present invention, an impact sensor 103 which operates by detecting a shake of an object 10 stolen by an intruder; An alarm unit 110 notifying an alarm signal to the outside by the detected signal; A first external communication terminal 105 capable of setting a plurality of information including an operation program change and an identification code; A first auxiliary storage device (106) for temporarily storing various functional information including the signal; A first central processing unit (108) which analyzes and executes all information signals; A first frequency modulator / demodulator 102 as a signal transmission means for wireless communication with a remote location; A first transmit / receive antenna 101 which radiates the information signal to a wireless section; A first auxiliary power supply 106 in which a preliminary power supply is operated when the continuous power supply is stopped; The region in which the continuous power supply is smooth is composed of the first main power supply unit 107 capable of continuously supplying power.

Figure 2 shows the internal structure of the alarm terminal 200 according to the present invention, a second transmission and reception antenna 201 for transmitting the predetermined terminal and predetermined information in a wireless section of the remote; A detector for detecting the strength of the received signal; A power lamp (206) indicating the strength of the detected signal; A second frequency modulator / demodulator 202 for transforming and reconstructing the received signal; A second central processing unit 209 for collecting theft information and controlling the peripheral device; An alarm and indicator 203 for informing a remotely stolen object; A second external communication terminal 205 for changing an operating program and changing a program of various functional information; A second auxiliary storage device 207 for temporarily storing a user's basic data settings and modified information; A second auxiliary power supply 207 to which a preliminary power supply is connected when the continuous power supply is stopped; The region in which the continuous power supply is smooth is composed of a second main power supply 208 that can continuously supply power.

Under such a system, when temporarily storing the object 10 outside the building 40 as shown in FIG. 3, the identification terminal 100 is attached and fixed near the object 10 so that an alarm sound is detected when a shake is detected by an intruder. The alarm information generated by the alarm terminal 200 is wirelessly transmitted to the alarm terminal 200 which is generated and immediately placed indoors of a remote location, thereby informing the monitor of the field of theft.

As illustrated in FIG. 1, the shock detector 103 uses a characteristic of generating a specific resonance frequency according to a change in ambient air hydraulic pressure, so that the identification terminal 100 attached to the object 10 moves the object stolen by an intruder. During the shaking, a change in the surrounding air hydraulic pressure is generated, and the shock sensor 103 generates a resonance frequency according to the degree of change in the air hydraulic pressure.

The signal is transmitted to the comparator 109 to distinguish it from other resonant frequencies that may occur in a natural state, and when the signal within the reference signal is detected by comparing with the magnitude of the preset reference signal, the comparator 109 is the object 10. The signal to the stolen state of the first CPU 108.

The signal is a means for informing the outside of the occurrence of theft by the intruder in the first central processing unit 108 to generate an alarm sound from the alarm 110 of the identification terminal 100, and immediately located in the remote alarm terminal 200 As a means for informing the stolen state of the article 10, the first frequency to ensure that the unique identification number indicating the location of the identification terminal 100 and theft information can be accurately transmitted without error of the signal in a wireless section located at a remote location. Modulator demodulator 102 transmits the frequency modulated.

The signal is received from the alarm terminal 200 located at a remote location of the wireless section with a sufficient signal to radiate a signal to the alarm terminal 200 at a remote location with the first transmitting / receiving antenna 101 so that good communication can be made.

The signal receives a good signal from the second transmit / receive antenna 201 of the alarm terminal 200 located at a remote location, transmits the signal to the second frequency demodulator 202, demodulates the original signal, and then reconstructs the second signal. The signal is transmitted to the central processing unit 209.

The signal is analyzed by the second central processing unit 209 to analyze the stolen information signal of the remote object 10 and the unique identification number of the identification terminal 100 to detect the location and alarm signal of the stolen object 10 alarm and display unit Forwarded to 203.

The second central processing unit detects the signal strength received from the detector 210 located behind the second transmitting / receiving antenna 201 by keeping an alarm sound generated by the signal and continuously communicating with the identification terminal 100. (209). By analyzing the signal, only the corresponding lamp is turned on in the power lamp 206 which displays the status indicator differently according to the received signal size, so that the monitor can know the received signal strength.

In addition, the separation distance including the position of the identification terminal 100 is displayed in letters and numbers as a means that the monitor can easily recognize in real time.

Under such a system, the separation distance between the two terminals is shown in Figs. 5 and 6, when the object 10 stolen by the intruder is shaken, the shock sensor 103 of the identification terminal 100 is operated to issue an alarm. Attempt to connect to the alarm terminal 200. In a state in which communication between both terminals is made, the alarm terminal 200 analyzes the received theft information, issues an alarm signal to the monitor, and makes a distance request to the identification terminal 100 at a remote location.

In this case, the reference signal S1 having the same period exists in the second CPU 209, and generates the distance search signal S2 having a specific period that can be distinguished from the reference signal S1. By matching the starting point in the same manner as the rising time of (S1) it sends a signal to the identification terminal 100 located in the remote. The distance search signal S2 is modulated by the second frequency demodulator 202 and radiates a signal to the identification terminal 100 located at a remote location of the wireless section via the second transmit / receive antenna 201.

The transmission speed of air in air is as shown in Equation 1 below. Since the arrival time of radio waves varies depending on the distance, the separation distance can be measured by converting the arrival speed of the response signal between both terminals into a distance. (Equation 1: propagation velocity in air = 3 * 10 ⁸ [m / sec])

The distance search signal (S2) is a distance search signal (S3) delayed (D1) as shown in Equation 1 according to the separation distance in the wireless section is the first transmission and reception antenna (100) of the identification terminal 100 ( 101 to transmit a signal to the first frequency demodulator demodulator (102). The distance search signal S3 is demodulated into an unmodulated original signal and transmitted to the first CPU 108.

The distance search signal S3 receives and analyzes a signal from the first central processing unit 108 of the identification terminal 100 and delays D2 by a predetermined time stored in the first auxiliary memory 104. After that, the distance search signal S4 having the same period is generated to transmit the signal to the first frequency demodulator and demodulator 102.

The signal is modulated by the first frequency modulation / demodulator 102 to be transmitted to the first transmit / receive antenna 101 so that the signal can be safely transmitted in a wireless section. do.

The distance search signal S4 radiated to the wireless section in the air has a distance search signal S5 of which the propagation delay is delayed D3 as shown in Equation 1 according to the separation distance of both terminals. Received by the second transmit and receive antenna 201, some signals are transmitted to the detector 210 and the remaining signals are transmitted to the second frequency demodulator 202.

The signal detected by the detector 210 converts an AC signal into a DC signal, and the signal transmitted to the second frequency demodulator 202 is demodulated by an unmodulated original distance search signal S5 to a second center. It is transmitted to the processing device 209.

By comparing the start point of the first distance search signal (S2) having a predetermined period and the start point of the distance search signal (S5) received and fed back from the remote alarm terminal 200 to calculate the delay (D3) by Equation 1 By converting the separation distance between the two terminals by transmitting a signal to the alarm and display unit 203 of the alarm terminal 200 to indicate the separation distance so that the monitor can easily recognize.

In addition, since the signal output from the detector 210 is output differently according to the magnitude of the input signal, the signal is analyzed and the volume of the signal corresponding to the power lamp 206 is turned on.

The mark of the power lamp 206 is the point of lighting of the lamp is different according to the magnitude of the signal input to the alarm terminal 200, the point where the largest signal is captured by adjusting the direction of the second transmit / receive antenna 201. It indicates the direction of this identification terminal 100.

By maintaining the communication with the identification terminal 100 in real time the separation distance display by moving the object 10 stolen by the intruder changes the distance and the moving direction state is displayed in real time.

On the basis of the separation distance and the moving direction information, the monitor operates the second auxiliary power supply 207 of the alarm terminal 200 to track the movement path of the stolen object 10, thereby narrowing the distance between both terminals and arresting the thief. Becomes possible.

While tracking the object 10, when the communication status of both terminals moves to an area where it is no longer difficult to maintain the communication state, the communication is retried as many times as preset in the second auxiliary storage device 204, and the communication is stopped if there is no response. .

 As described in detail above, in the present invention, if the store is densely packed in a store or a construction site, and the objects such as building materials are temporarily stored outdoors, a watcher patrols the site in fear of theft, but the present invention rests indoors. You can monitor the status of things while you are drunk.

In addition, since the distance measurement can be displayed in real time while the identification terminal and the alarm terminal are in communication with each other, the supervisor can track the movement path by operating the auxiliary power supply of the alarm terminal so that theft can be arrested in the field.

Still another object of the present invention is to enable a straight line distance measurement between two terminals wirelessly, so that it can be conveniently used for distance measurement in a construction site that is hard to access.

Claims (5)

Means for reporting the resonant frequency generated by the movement of the object stolen by an external intruder to the first central processing unit of the identification terminal to activate the alarm in the field, and at the same time to inform the status of the object stored in the monitoring station located in the remote section of the radio section. By modulating the signal in the first frequency demodulator, the first frequency modulator demodulates the theft information signal to the first transmit / receive antenna. The signal is received by a second transmit / receive antenna attached to an alarm terminal of a remote monitoring station, and demodulated by an unmodulated original signal by a second frequency demodulator. The signal is analyzed in the second central processing unit and the alarm and the display to perform the command to the remote monitor, characterized in that the indoor monitor notifies the stolen state of the object stored in the remote. The method of claim 1, wherein the request of the search signal for checking the distance from the alarm terminal by measuring the separation distance between the identification terminal and the alarm terminal period, the signal that a certain time delay occurs according to the separation distance in the wireless section reaches the identification terminal. The signal is delayed by a preset time in the temporary memory device, and then generates a signal having the same period so that the signal is transmitted to an alarm terminal at a remote location, and the alarm terminal receives a signal that is time-delayed by a distance separated from the wireless section. 2) Theft monitoring device, characterized in that the central processing unit after the comparative analysis with the first reference signal converted into a distance by a delayed time to indicate the separation distance in the notification and display unit.  2. The method of claim 1, wherein when an object is stolen by an intruder, theft information signal is sent from the identification terminal, received by the second transmission / reception antenna of the alarm terminal, and a signal is transmitted to the detector. The detector detects the intensity of the incoming signal and lights it up by the intensity corresponding to the power lamp, so that the monitor can check the moving direction of the stolen object by indicating the location of the sensitive terminal with the largest direction of the received signal. monitor.  According to claim 2, wherein the communication between the two terminals is maintained in a continuous state to measure the separation distance in real time, so that the monitor can operate the auxiliary power of the alarm terminal while tracking the location of the stolen goods while carrying Remote theft monitoring device.  The method of claim 1, wherein a plurality of identification terminals and one alarm terminal is provided in an area storing a plurality of objects in the outdoors, each time the information transmission to the remote alarm terminal in the state of communication with each other unique to the identification terminal Remote theft monitoring device, characterized in that the transmission of information including the identification number to determine the location of the theft occurred.

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