KR20150131659A

KR20150131659A - CCTV which runs on the kinetic energy generated by a motion sensor equipped with laser range finder

Info

Publication number: KR20150131659A
Application number: KR1020140058650A
Authority: KR
Inventors: 이정용
Original assignee: 이정용
Priority date: 2014-05-15
Filing date: 2014-05-15
Publication date: 2015-11-25

Abstract

A laser consisting of a transmitter that generates a laser in various directions to the left or to the right or to the left or right or top or bottom, a photodetector that detects the laser reflected back from the target, and a counter to count the time The distance measurement in the distance measuring device measures the distance by measuring the time when the laser beam is reflected from the target after emitting a laser having a good directivity by aligning the laser beam with the line of sight of the measuring device
A switch for outputting an electric signal in conjunction with an operation of a switch for turning on a motion detection sensor using a laser distance measuring instrument;
In order to designate the position where the operation is performed, a distance of each of the plurality of laser distance measuring devices is output as an electric signal, an electric signal is inputted from the control part, and a time is outputted as an electric signal from a counter for time calculation The controller receives the electric signal, calculates a change in distance per unit time in units of a predetermined time, determines that the operation is detected when the change in distance per unit of time exceeds a predetermined reference, and outputs the operation detection signal as an electric signal A motion detection sensor using a laser range finder,
A laser emitting part of a laser distance measuring device which receives a motion detection sensor signal using a laser distance measuring device for outputting an electric signal and detects a change in distance per a predetermined time unit by a signal received from the laser measuring device, Control means for determining a forward rotation or a reverse rotation so as to rotate the servo motor or the like and calculating a rotation angle to output a signal for adjusting the rotation angle of the servo motor and the like, And a servo motor for adjusting the rotational angle of up and down or right and left or up and down or left and right of the motor, etc., and a means for adjusting the rotational angle of the upper and lower or right and left or up and down and right and left. The CCTV is fixed so that an object on which the CCTV operates operates is directed toward the detected position.

Description

A CCTV rotated by a motion sensor using a laser range finder (CCTV which runs on the kinetic energy generated by a motion sensor equipped with a laser range finder)

The technical field of the present invention relates to a CCTV which automatically moves so that a person can see a person, and there is no such CCTV. Another related art is a motion sensor, When there is a moving object by detecting RF wave, it senses the change of wavelength by the Doppler effect and senses that there is an object to be operated. It detects when a person comes in the sensing area using an infrared sensor and sounds a warning sound .

The motion detection sensor using the Doppler effect of the currently released products has a maximum detection area of about 15 m and a maximum detection area of about 3 to 5 m by the infrared sensor.

As a background of the present invention, a laser distance measuring instrument and a servomotor,

Laser range finder

[Laser Range Finder]

summary

Equipment to measure distance using laser.

Laser range finder

Laser Distance Meter A portable laser distance meter used for observation or acquisition of targets.

It measures the exact distance by detecting the returning laser after emitting the laser toward the target. Tanks and infantry battle cars developed after the Second World War have been equipped to measure the range of targets and to improve the accuracy of the main guns. They are also used for construction, golfing, hunting and so on.

The laser range finder consisted of a laser transmitter (transmitter), a photodetector (detector) to detect the reflected laser beam from the target, and a counter to count the time. The distance measurement is done by aligning the line of sight of the measuring instrument with the laser axis, emitting a laser with high directivity, and then measuring the time it has been reflected from the target and calculating the distance.

The tachometer's laser range finder consists of a stabilization device, a daytime observation optics, and a thermal imaging device for nighttime observation, all of which help ensure accurate aiming and shooting while driving. K1A1, Korea 's latest tram, is equipped with a Raman laser range finder developed by Korea Defense Science Institute and Samsung Thales.

The K1 tram's laser range finder used a 1.06 μm Nd-YAG laser with poor visual acuity or a carbon dioxide (Co2) laser with a frequency of 10.6 μm. However, the K1A1 tachometer using the Raman laser in the 1.54 μm band is not only costly, but also eye safe and permeable. Rochelle in France and Leopard 2 in Germany also adopted the Raman laser range finder.

Passive infrared intrusion sensor

[passive infrared sensor for intruder detection, passive infrared intrusion detection]

A passive infrared sensor is a PtSi / p-Si Schottky diode using platinum silicide that absorbs infrared rays and detects infrared rays with a wavelength of 3 to 5 μm. In addition, there is a phenomenon in which a surface charge appears when a crystal is heated, that is, a pyroelectric effect or a pyro effect is used to detect infrared rays. As materials using the pyroelectric effect, thin films of glycine sulfate, LiTaO3 single crystals, and thin plates of Pb-TiO3 ceramics are used. For example, pyrovidicons, which use a pyroel element to replace a target of a common vidicon with a pyro film, have been used as infrared ray imaging tubes for detecting infrared rays generated by the human body and the like. There is also a solid-state image pickup element combined with a charge transfer element such as a BBD. It is widely used as a crime prevention device, a fire alarm system, an infrared radiation system, a noncontact thermometer, a laser detector, and the like.

Servo Motor

[servomotor]

summary

An apparatus for driving a load (load) by a control signal (control signal) as an operating unit of a servo mechanism.

There are electric (servo motor), pneumatic (air servo motor), and hydraulic (hydraulic motor) according to the power source of the servomotor. In many cases, a servo motor is often referred to as a servo motor.

Servo motor is a control motor with a range of speed response and wide speed control. It is classified as DC servomotor and AC servomotor according to the power source. Most of the AC servo motors are three-phase servo motors.

These are repeatedly operated such as stop, start, reverse, and the like, so that the heat radiating effect is improved and the change of operation is considered in design. The servo motor is operated according to the control signal. To do so, a device for receiving the control signal and amplifying it to drive the servo motor is required, which is called a servo amplifier.

The problem to be solved by the present invention is that, in general, in the case of CCTV, there is only a method of arbitrarily adjusting the rotation angle with a switch even if the camera is fixed or rotated by a motor.

Therefore, if the camera is fixed, the angle of the CCTV is fixed. Therefore, if the moving object is out of range, it is impossible to detect it.

The present invention has been made in order to solve such a problem, and in particular, in the case of installing CCTV for security purposes at night, when it is necessary to track people moving in and out in rare cases, The CCTV will move toward people moving or moving, so that more information can be obtained about moving people, moving objects, and the like.

As for the function of the CCTV of the present invention, in the case of the conventional motion detection sensor and infrared ray sensor, the motion detection sensor using the Doppler effect of the currently released product has a maximum detection area of about 15 m and a maximum Since the detection area is about 3 ~ 5m, the detection area is very narrow, and there is no function for specifying the position where the operation is performed , and there is no function for specifying the position where the operation is performed . none.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a motion detection sensor using a laser distance measuring instrument having a function of identifying a position where an operation is performed, It is intended to provide CCTV rotated.

The problem of this problem is that instead of using RF waves as a motion detection sensor, the distance of motion detection is dramatically increased by using a laser, and a device for generating a laser in various directions of right and left or up and down, A photodetector for detecting the returned laser, and a counter for counting the time. Distance measurement is a method of calculating the distance by measuring the time when this laser is reflected from the target after emitting a laser with good directional alignment by aligning the line of sight of the measuring device with the laser optical axis. If there is no moving object, However, when a moving object is generated, the distance is changed.

In this case, in order to specify and indicate the position where the operation is performed, it is necessary to change the distance per unit time (hour, minute, or second) The step motor or the servomotor rotates such that the CCTV is directed in a direction indicating the detected portion of the distance per unit time.

The effect of the present invention is that when the CCTV for security purposes is installed at night, it is necessary to track people moving in and out of the vicinity in rare cases. If the present invention is used, that is, When activated, CCTV moves toward people moving or moving, so that more information can be obtained about people moving or moving, and the like.

FIG. 1 is a block diagram of a CCTV system using a motion sensor using a laser range finder according to an embodiment of the present invention; FIG.
FIG. 2 is a model view showing a mounting position of a laser distance measuring instrument in a motion detection sensor using a laser distance measuring instrument according to an embodiment of the present invention; FIG.

FIG. 1 is a block diagram of a CCTV system to which a motion sensor using a laser distance measuring device according to an embodiment of the present invention is applied. As shown in FIG. 1, In the laser rangefinder, which consists of a transmitter generating a laser beam in the direction of the target, a photodetector detecting the laser reflected back from the target, and a counter for counting time, When the laser is launched in such a way as to align the laser optical axis and emit a laser having excellent directivity and then calculate the distance by measuring the time when the laser is reflected from the target

A switch for outputting an electric signal in conjunction with an operation of a switch for turning on a motion detection sensor using a laser distance measuring instrument;

In order to designate the position where the operation is performed, a distance of each of the plurality of laser distance measuring devices is output as an electric signal, an electric signal is inputted from the control part, and a time is outputted as an electric signal from a counter for time calculation The controller receives the electric signal, calculates a change in distance per unit time in units of a predetermined time, determines that the operation is detected when the change in distance per unit of time exceeds a predetermined reference, and outputs the operation detection signal as an electric signal A motion detection sensor using a laser range finder,

A sensor for receiving a motion detection signal using a laser range finder for outputting an electric signal, a controller for turning on the power of the search light for a predetermined period of time according to a signal received from the laser range finder, and outputting a signal such that the power of the search light is turned off after a predetermined time The control means determines the forward rotation or the reverse rotation so that the servo motor or the like rotates as a laser emitting portion of the laser distance measuring device and a portion of the photodetector which detects a change in the distance per a predetermined time unit, A servo motor that operates in accordance with a signal outputted from the control means and adjusts the rotation angle of up, down, right, left, up and down, left and right of the servo motor, etc., Left or right or up and down and right and left rotation angle adjusting means, It is fixed on the shelf above the shaft, on the top, on the axis or on the axis so that the object that CCTV operates is pointed to where it is detected.

FIG. 2 is a schematic view showing a mounting position of a laser distance measuring instrument in a CCTV rotated by a motion detecting sensor using a laser distance measuring instrument according to an embodiment of the present invention.

1: CCTV
2: Servo motor
3: laser advancing direction

Claims

A laser consisting of a transmitter that generates a laser in various directions to the left or to the right or to the left or right or top or bottom, a photodetector that detects the laser reflected back from the target, and a counter to count the time The distance measurement in the distance measuring device measures the distance by measuring the time when the laser beam is reflected from the target after emitting a laser having a good directivity by aligning the laser beam with the line of sight of the measuring device
A switch for outputting an electric signal in conjunction with an operation of a switch for turning on a motion detection sensor using a laser distance measuring instrument;
In order to designate the position where the operation is performed, a distance of each of the plurality of laser distance measuring devices is output as an electric signal, an electric signal is inputted from the control part, and a time is outputted as an electric signal from a counter for time calculation The controller receives the electric signal, calculates a change in distance per unit time in units of a predetermined time, determines that the operation is detected when the change in distance per unit of time exceeds a predetermined reference, and outputs the operation detection signal as an electric signal A motion detection sensor using a laser range finder,
A laser emitting part of a laser distance measuring device which receives a motion detection sensor signal using a laser distance measuring device for outputting an electric signal and detects a change in distance per a predetermined time unit by a signal received from the laser measuring device, Control means for determining a forward rotation or a reverse rotation so as to rotate the servo motor or the like and calculating a rotation angle to output a signal for adjusting the rotation angle of the servo motor and the like, And a servo motor for adjusting the rotational angle of up and down or right and left or up and down or left and right of the motor, etc., and a means for adjusting the rotational angle of the upper and lower or right and left or up and down and right and left. Characterized in that the object to be inspected is fixed so as to face a detected object. CCTV is rotated by motion sensor using sensor.

The method of claim 1, wherein the control unit calculates a change in distance per unit time in units of a predetermined time and determines that the laser firing unit has a maximum change in distance per unit time, A motion detection sensor using a laser range finder for outputting an electric signal,
A laser emitting part of a laser distance measuring device which receives a motion detection sensor signal using a laser distance measuring device for outputting an electric signal and detects a change in distance per a predetermined time unit by a signal received from the laser measuring device, Control means for determining a forward rotation or a reverse rotation so as to rotate the servo motor or the like and calculating a rotation angle to output a signal for adjusting the rotation angle of the servo motor and the like, And a servo motor for adjusting the rotational angle of up and down or right and left or up and down or left and right of the motor, etc., and a means for adjusting the rotational angle of the upper and lower or right and left or up and down and right and left. Characterized in that the object is fixed so that the object on which the CCTV operates is pointed towards where it is detected CCTV which is rotated by the movement detecting sensor using the same.

The method of claim 1, wherein the control unit calculates a change in distance per unit time in units of a predetermined time, which is input as an electric signal, and determines a change amount of the distance per unit time in two or more values such as a maximum value, A motion detection sensor using a laser range finder that regards an operation as being detected and outputs a motion detection signal as an electric signal in a control unit;
A sensor for receiving a motion sensor signal using a laser distance meter for outputting an electric signal, and for receiving a signal input from the sensor, (CCTV) with the corresponding value for a certain period of time, and the laser emission part of the laser range finder which detects the change of the distance per unit time, and the part of the photodetector which forms each CCTV A control means for determining a forward rotation or a reverse rotation so as to rotate the servo motor and outputting a signal for adjusting the rotation angle of each servo motor or the like by calculating a rotation angle, Up / down or right / left / left / up / down directions of each servo motor, Or the upper and lower and left and right rotation angle adjusting means and is fixed on the shelf on the axis, the top or the top of the axis of each servo motor or the like so that an object in which the CCTV operates is pointed toward the detected position. CCTV rotated by motion sensor using measuring instrument.