JP2019128615A - Invasion detection device and crime prevention system using invasion detection device - Google Patents

Abstract

To provide an invasion detection device that has high detection accuracy and prevents a load on a site manager, and a crime prevention system using the invasion detection device.SOLUTION: A crime prevention system includes: a Doppler sensor 72 for transmitting/receiving a microwave to/from a detection surface 74, outputting a signal differing in phase by 90 degrees as a Doppler frequency signal on the basis of an exchanged signal, detecting a movement direction of a detected object from a phase difference of an obtained signal, and then determining that a detected object cuts across in front of the detection surface 74; and a radio communication machine 76 for transmitting generated detection information to an outer side when it is determined that a detected object has cut across in front of the detection surface 74 by the Doppler sensor 72 as a result. Generated detection information is reported to a management terminal via a management server through the use of an invasion detection device where a detection area extending in front of the detection surface 74 partially overlaps with a passage area of a temporary scaffold.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an intrusion detection device and a crime prevention system using the intrusion detection device, and more particularly to an intrusion detection device used for temporary scaffolding in a construction site and a crime prevention system using the intrusion detection device.

  Generally, in a building or a condominium, a temporary scaffold for work is assembled so as to surround the periphery of the building in order to smoothly perform exterior work and facility maintenance work. In the temporary scaffold, a work floor is provided between the columns, and the work floor is moved to perform work. At that time, in order to maintain safety and aesthetics, the temporary scaffolding is often covered with a seat cover or the like so as not to be directly visible from the outside.

  However, at a construction site with such a temporary scaffolding, a suspicious person climbs the building using the temporary scaffolding during a daytime break or at night, and enters the building, causing residents to be stolen. Damage is frequent. In addition, since the temporary scaffold is often covered with a seat cover or the like so that it cannot be seen from the outside, there is also a problem that intruders are hardly detected.

  Then, the method to detect the intruder using an infrared sensor is known conventionally (refer patent document 1). For example, in order to detect an intruder, a building worker or the like is caused to carry a portable radio wave transmitter, the infrared sensor detects a human body, and a signal transmitted from the portable radio wave transmitter is not received. There is a monitoring device that issues an alarm when it becomes dead.

JP 2005-31831 A

  However, when the infrared sensor is used outdoors, the sensor detects a small animal, rain water or paint adheres to the sensor, or the sheet provided on the temporary scaffold shakes due to wind or the like, causing false detection. Probability is high. Therefore, every time it is detected, the site manager has to check whether there is any abnormality, which places a burden on the site manager. Moreover, when using an infrared sensor, when an intruder wears black clothes, there existed a problem of being hard to detect.

  Therefore, the main object of the present invention is to provide an intrusion detection device which has high detection accuracy and does not burden the site manager, and a crime prevention system using the intrusion detection device.

The intrusion detection device according to the present invention transmits and receives microwaves from the detection surface, and outputs signals having a phase difference of 90 degrees as a Doppler frequency signal based on the transmitted and received signals, and the phase difference of the obtained signals Detection generated as a result of the Doppler sensor that determines that the object has crossed the front of the detection surface by detecting the direction of movement, and the result that the object has determined that the object has crossed the front of the detection surface And a wireless communication device for transmitting information to the outside, wherein a detection area extending in front of a detection surface of the Doppler sensor overlaps with a part of the passing area of the temporary scaffold.
Further, the intrusion detection device according to the present invention is an intrusion detection device installed using a mounting member on a support of a temporary scaffold, and the intrusion detection device transmits and receives microwaves from the detection surface, and the transmitted and received signals Based on the above, output signals with a 90 ° phase difference as a Doppler frequency signal, and detect the movement direction of the detection object from the phase difference of the obtained signal, and determine that the detection object has crossed the front of the detection surface As a result of determining that the object to be detected has crossed the front of the detection surface by the Doppler sensor and the Doppler sensor, the wireless communication device for transmitting the detection information generated to the outside, and power is supplied to the Doppler sensor and the wireless communication device Power source, and the mounting member is mounted on the mounting base mounted on the column separated from the temporary scaffolding, and one end is connected to the mounting part, and the intrusion detection device is locked on the other end side An intrusion detection device inserted into the opening of the arm portion, the arm portion having an opening portion, spaced apart from the work floor or the ground of the temporary scaffolding, and inserted into the opening portion of the arm portion; The intrusion detection device is fixed at a predetermined distance from the column of the temporary scaffold by locking the locking projection provided on the inner surface of the opening and the locking hole provided on the inner circumferential surface of the opening, and It is characterized in that a detection area extending in front of the detection surface of the Doppler sensor overlaps with a part of the passing area of the temporary scaffold.
Furthermore, the crime prevention system according to the present invention transmits / receives microwaves from the detection surface, and outputs signals having a phase difference of 90 degrees as a Doppler frequency signal based on the transmitted / received signals, and detects an object Generated as a result of determining that the detected object crossed the front of the detection surface by the Doppler sensor that determines that the detected object crossed the front of the detection surface by detecting the moving direction of A crime prevention system comprising: an intrusion detection device including a wireless communication device for transmitting detection information to the outside; a management server for receiving detection information from the wireless communication device; and a management terminal for receiving the detection information from the management server And the management server has an acquisition unit for receiving the detection information and a distribution unit for distributing the detection information to the management terminal, and the management terminal is a distribution unit of the management server A receiver for receiving the detection information, and having a display unit for displaying the detection information to the management terminal.
Preferably, the intrusion detection device is the above-described intrusion detection device.
In addition, a detection information recording unit for accumulating detection information is further provided, the management server further includes a processing unit for outputting the detection information data accumulated from the detection information recording unit, and the management terminal further detects the accumulated information. It is preferable to have a transmitter for transmitting output instruction information of information data.

By having such characteristics, the infrared sensor and the like have caused false detection due to small animals and the natural environment such as light, temperature and humidity, but by using the Doppler sensor, random movement and It is possible to detect a sudden movement and reduce false detections due to factors other than human beings. In addition, in infrared sensors, etc., it was necessary to expose the sensor in order to detect the object to be detected. However, by using a Doppler sensor, it is not necessary to expose the sensor, preventing damage to the sensor, paint, etc. Even if it adheres, it can be used without changing the performance. Furthermore, the Doppler sensor can be detected alone and is easier to install than an intrusion detection device that requires a sensor transmitter and a sensor receiver.
Also, by providing a wireless communication device, installation is possible anywhere that communication is possible, and detection information generated by the Doppler sensor can be transmitted to the outside through the wireless communication device.
The detection area extending in front of the detection surface of the Doppler sensor overlaps with a part of the passage area of the temporary scaffold, so that an intruder who has entered the passage area of the temporary scaffold can be detected.
In addition, since this intrusion detection device is installed outdoors, it is a case where individual parts are damaged by separately providing an attachment portion, an arm portion, and an intrusion detection device that are attached to a column of a temporary scaffold. Is easy to replace.
In addition, as a result of the Doppler sensor determining that the object to be detected has crossed the front of the detection surface, the generated detection information is transmitted to the management server via the wireless communication device, and the site manager is transmitted via the management server. By transmitting the detection information to the management terminal possessed by the server, the detection information can be notified even if the site manager is at a place other than the construction site.
Then, since detection information is accumulated in the management server, when it is desired to output the detection information accumulated in the management server, the detection information is managed by transmitting the output instruction information of the detection information from the management terminal to the management server. It is possible to confirm with. Furthermore, since the detection information can be output, reporting of the detection information from the site manager to the client is facilitated.

  According to the present invention, it is possible to provide an intrusion detection device that has high detection accuracy and does not place a burden on the site manager and a crime prevention system using the intrusion detection device.

  The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of embodiments for carrying out the invention with reference to the drawings.

The front view of the intrusion detection apparatus which concerns on embodiment of this invention is shown. The right view of the intrusion detection device concerning the embodiment of the present invention is shown. FIG. 2 shows a cross-sectional view along the line AA shown in FIG. 1. (A) shows the perspective view of the main-body part of the intrusion detection apparatus which concerns on embodiment of this invention. (B) shows the perspective view of the head of the intrusion detection apparatus which concerns on embodiment of this invention. The perspective view of the support body of the intrusion detection apparatus which concerns on embodiment of this invention is shown. The perspective view of the support body of the intrusion detection apparatus which concerns on embodiment of this invention is shown. The attachment part which concerns on embodiment of this invention is shown. FIG. 8A (a) shows a front view of the arm portion according to the embodiment of the present invention. FIG. 8B (b) shows a plan view of the arm portion according to the embodiment of the present invention. FIG. 8B (c) shows a rear view of the arm unit according to the embodiment of the present invention. FIG. 8C (d) shows a right side view of the arm unit according to the embodiment of the present invention. FIG. 8C (e) shows a cross-sectional view along the line BB shown in FIG. 8A (a). The assembly drawing which shows the attachment method of the intrusion detection apparatus which concerns on embodiment of this invention is shown. The sectional view in the state where the intrusion detection device concerning the embodiment of the present invention was attached to the arm part is shown. The front view of the state which attached the penetration detection apparatus and the attachment member which concern on embodiment of this invention to a support | pillar is shown. The right side view of the state which attached the intrusion detection apparatus and the attachment member which concern on embodiment of this invention to a support | pillar is shown. It is a top view which shows the attachment position of the intrusion detection apparatus which concerns on embodiment of this invention in a temporary scaffold. It is a perspective view which shows the attachment position of the intrusion detection apparatus which concerns on embodiment of this invention in a temporary scaffold. The figure which shows the detection area of the intrusion detection apparatus which concerns on embodiment of this invention is shown. The block diagram of the crime prevention system concerning a 1st embodiment of the present invention is shown. The flowchart which displays the detection information of the crime prevention system which concerns on the 1st Embodiment of this invention on a management terminal is shown. The screen where the detection information was notified to the management terminal in the crime prevention system which concerns on the 1st Embodiment of this invention is shown. The block diagram of the crime prevention system concerning a 2nd embodiment of the present invention is shown. The flowchart which accumulate | stores the detection information of the crime prevention system which concerns on the 2nd Embodiment of this invention in a detection information recording part is shown. The flowchart which outputs the detection information of the crime prevention system concerning a 2nd embodiment of the present invention is shown. The flow chart which controls a Doppler sensor by Doppler sensor control directions information using a crime prevention system concerning a 2nd embodiment of the present invention is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The embodiment described below is an example embodying the present invention, and does not limit the technical scope of the present invention.

  Further, in the attached drawing, the extending direction of the support column 504 provided in parallel with the height direction of the building 510 in FIG. 14 is the vertical direction, and is perpendicular to the vertical direction and from the support column 504 provided at a position apart from the building 510. The direction toward the building 510 is referred to as the front-rear direction, and the direction perpendicular to the up-down direction and the front-rear direction is referred to as the left-right direction.

The intrusion detection device 10 is installed in a temporary scaffold 500 provided around the outer wall of the building 510, and detects that a suspicious person enters the building 510 through the temporary scaffold 500.
In the temporary scaffold 500, as shown in FIG. 13, pillars 504 are erected along the periphery of the building 510, and a work floor 502 is provided between the pillars 504. The ground or work floor 502 surrounded by the pillars 504 is used as a worker's passage area 506, and the worker moves back and forth in the passage area 506 to perform work. In the temporary scaffold 500, the distance between the general support columns 504 is 1.8 m in the left-right direction and 0.6 m in the front-rear direction, and the distance between the ground and the work floor 502 and the distance between the work floors 502 are 2.0 m.

(Configuration of intrusion detection device)
The intrusion detection device 10 includes a Doppler sensor 72, a wireless communication device 76, and a power source 82 inside the housing 12.
The intrusion detection apparatus 10 determines that the detected object 512 has crossed the front of the detection surface 74 by the Doppler sensor 72 and uses the wireless communication device 76 to detect the detected object 512 by the Doppler sensor 72. As a result of determining that the vehicle has crossed the front, the generated detection information 530 is transmitted to the outside and transmitted to the site manager 550.

  The housing 12 of the intrusion detection device 10 will be described based on FIGS. 1 to 4. FIG. 1 shows a front view of an intrusion detection device according to an embodiment of the present invention. FIG. 2 shows a right side view of the intrusion detection device according to the embodiment of the present invention. FIG. 3 shows a cross-sectional view along the line AA shown in FIG. Fig.4 (a) shows the perspective view of the main-body part of the intrusion detection apparatus which concerns on embodiment of this invention. FIG.4 (b) shows the perspective view of the head of the intrusion detection apparatus which concerns on embodiment of this invention.

  The housing 12 includes a main body 14 and a head 16. The main body 14 accommodates the Doppler sensor 72 and the wireless communication device 76. The head 16 houses a power source 82. The housing 12 is preferably formed of a material that hardly causes radio wave interference.

  The main body portion 14 has a shape in which an upper cylindrical portion 14A having a large diameter and a lower cylindrical portion 14B having a small diameter are combined. The upper cylindrical portion 14A and the lower cylindrical portion 14B are integrally formed, and the inside is a continuous hollow. The head 16 is disposed on the top of the main body 14 and supported by the main body 14.

  The lower cylindrical portion 14B continuously extends downward from the center as viewed from the front of the upper cylindrical portion 14A and from the rear as viewed from the right side. The lower cylindrical portion 14B is provided to accommodate a rod-shaped antenna 78 of the wireless communication device 76 described later.

  An opening 18 is formed above the upper cylindrical portion 14A. A screwing groove 24 for screwing with the head 16 is formed in the connecting portion 20 in the vicinity of the opening 18 of the main body 14. A head 16 is continuously provided on the outer periphery of the connecting portion 20. A flange 21 is provided below the screwing groove 24 of the main body 14 so as to be caught in an opening 130 of the arm 120 described later. Furthermore, trapezoidal locking projections 26 in a plan view are provided on the outer peripheral surface of the main body 14 at two locations in the center in the left-right direction on the front and back surfaces. An O-ring 22 is fitted between the screwing groove 24 and the flange 21. By having such a shape, the main body portion 14 and the head portion 16 can be sealed, and even if the outside of the main body portion 14 and the head portion 16 gets wet due to water droplets etc. Intrusion of water droplets or the like can be prevented.

  On the inner peripheral surface of the main body portion 14, there are a support connecting portion 28 for connecting the support 40 and a support engaging portion 30 for engaging the support 40. The support body connecting portion 28 is provided at two locations on the inner peripheral surface side at the same position as the locking protrusion 26 on the outer peripheral surface and on the inner peripheral surface side opposite to the locking protrusion 26. The support engaging portion 30 is provided at two positions on the inner peripheral surface side 90 degrees apart from the locking projections 26 on the outer peripheral surface.

The head 16 is a cylinder having a dome shape on the upper surface. An opening 32 is formed below the head 16. A screwing projection 34 for screwing with the connecting portion 20 of the main body portion 14 is formed on the inner peripheral surface near the opening 32 of the head portion 16. The main body portion 14 and the head portion 16 are connected by aligning the screwing projections 34 of the head portion 16 with the screwing grooves 24 provided on the outer peripheral surface of the connecting portion 20 of the main body portion 14 and screwing them together. .
An identification ring 36 is provided on the outer peripheral surface of the head 16 near the opening 32. The identification ring 36 has a specific color and is used to identify the installed intrusion detection device 10.

The support 40 will be described based on FIGS. 5 and 6. FIG.5 and FIG.6 shows the perspective view of the support body of the intrusion detection apparatus based on embodiment of this invention.
The support 40 is provided inside the housing 12. Further, the support body 40 has a cross shape in a side view from the vicinity of the upper portion of the head portion 16 to the vicinity of the lower portion of the main body portion 14. The support 40 has the power source 82 at the top, the Doppler sensor 72 and the radio communicator 76 at the bottom, and supports the Doppler sensor 72 and the radio communicator 76 to be disposed up and down. A lid 42 provided at the middle in the vertical direction of the support 40 covers the opening 18 of the main body 14 and separates the main body 14 from the head 16.

The lid portion 42 is a generally circular plate-like member in plan view that expands in the left-right direction, and is inclined in the front-rear direction as viewed from the side. Further, a support connection hole 44 penetrating the lid 42 is provided at a position where the length of the lid 42 in the vertical direction is the shortest, which is the periphery of the lid 42. Further, a support engaging protrusion 46 provided 90 degrees apart from the support connecting hole 44 on the lower surface of the lid portion 42.
Are provided at two places on the left and right. Further, a lid wiring hole 47 is provided on the lid portion 42 on the right side in the front view and on the front side in the side view. The lid part wiring hole 47 is formed by cutting the lid part 42 into an L shape in plan view. The lid wiring hole 47 is provided to arrange a lead for supplying power from the power source 82 provided in the upper support 40A described later to the Doppler sensor 72 and the wireless communication device 76 provided in the lower support 40B. Is provided.

  The support engaging projection 46 of the lid 42 and the support engaging portion 30 of the main body 14 are engaged with each other, and the support connecting hole 44 of the lid 42 and the support connecting portion 28 of the main body 14 are screwed 60. Can be fixed inside the opening 18 of the main body 14. Accordingly, the support body 40 is fixed to the hollow portions of the head portion 16 and the main body portion 14 in the center in the left-right direction of the head portion 16 and the main body portion 14 and in a state of being suspended in the vertical direction.

The support 40 is constituted by the upper support 40A on the upper side from the lid 42 and the lower support 40B on the lower side from the lid 42.
The upper support 40A supports the power source 82 housed in the power source housing member 80. Further, the lower support body 40B supports the Doppler sensor 72 and the wireless communication device 76 attached to the substrate 70.

The upper support 40A includes a support plate 48A that is erected in the left-right direction when viewed from the front, and a support plate 48B and a support plate 48C that are erected in a direction perpendicular to the support plate 48A from the left and right ends of the support plate 48A. And is formed in an H shape in plan view.
A plurality of L-shaped support plates 48D are continuously provided on the support plate 48A. The support plates 48D are provided, for example, at six locations in the front-rear direction. A power source 82 housed in a power source housing member 80 can be attached to the support plate 48D. By providing the power source 82 housed in the power source housing member 80 away from the lid 42, radio wave interference to the wireless communication device 76 can be prevented. Further, a support plate wiring hole 49 is provided in the vicinity of a tangent of the support 48A and the support 48B and below the right side of the support 48A in a front view. The support plate wiring hole 49 is provided through the support 48A. The support plate wiring holes 49 are, for example, rectangular, and provided between the L-shaped support plates 48D.

  The lower support 40 </ b> B includes a rectangular substrate support plate 50 that extends vertically from the lid portion 42, and a side plate 52 that is provided vertically from the edge of the substrate support plate 50. At four corners of the front surface of the substrate support plate 50, substrate attachment portions 54 for attaching the substrate 70 are provided. The substrate 70 is fixed to the lower support 40B by fixing the four corners of the substrate 70 to the substrate mounting portions 54 together.

  In addition, on the lid 42 side of the substrate support plate 50, an antenna installation hole 56 for installing the antenna 78 is provided. The antenna installation hole 56 is circular and penetrates the substrate support plate 50. Furthermore, on the opposite side of the lid 42 of the substrate support plate 50, an antenna support 58 for supporting the antenna 78 is provided. The antenna support portion 58 has a U shape and is connected to the substrate support plate 50.

The Doppler sensor 72 is attached to the substrate 70, and the substrate 70 to which the Doppler sensor 72 is attached is attached to the substrate support plate 50 of the lower support 40B.
Further, the detection surface 74 for transmitting and receiving the microwaves is installed on the surface facing the installation surface on the substrate 70 side of the Doppler sensor 72. Therefore, the detection surface 74 spreads in the vertical direction in the hollow portion of the main body portion 14.
The detection area 516 that can be detected by the detection surface 74 is generally spherical toward the front of the detection surface 74, as shown in FIG. The detection area 516 that can be detected by the detection surface 74 is 1.5 m to 3 m from the detection surface 74 in the vertical direction, 2 m to 4 m from the detection surface 74 in the left-right direction, and 5 m to 10 m from the detection surface 74 in the front-back direction. It is up to.

  The Doppler sensor 72 transmits and receives microwaves from the detection surface 74, and outputs signals having a 90 ° phase difference as Doppler frequency signals based on the transmitted and received signals, and the movement direction of the detection object 512 from the phase difference of the obtained signals It is determined that the detection object 512 has crossed the front of the detection surface 74 by detecting the The Doppler sensor 72 detects the approach and separation of the detection object 512 at predetermined time intervals, and after being approached continuously for a predetermined time, it changes to separation, and then it continuously separates for a predetermined time. Sometimes the crossing of the detected object 512 is determined.

  With such a configuration, the approach and separation of the detection object 512 are identified from the phase difference (phase state) of the Doppler frequency signal, and the detection object 512 changes from the approach to the separation from the inversion of the phase difference of the Doppler frequency signal. It is possible to determine that the detected object 512 has crossed (passed) in front of the sensor (front or transmission / reception direction) due to the change from approach to separation. Accordingly, it is possible to reduce false detection due to random movements such as water droplets and sheet fluctuations, and false detection due to sudden movements of insects crossing in front of the Doppler sensor 72.

The Doppler sensor 72 can stably detect the passage of the detection object 512 and the like using a single sensor part, so that the installation can be simplified and the installation cost can be reduced as compared with a cut-off sensor in which a transmitter / receiver is disposed oppositely. There is.
In addition, since the Doppler sensor 72 uses microwaves, the Doppler sensor 72 can be detected without being exposed to the outside, used in a place exposed to direct sunlight, or used in a situation where visibility is deteriorated due to fog or the like. There is an advantage that there are few restrictions on arrangement and use.

  Since the Doppler sensor 72 is provided in the main body 14, it is possible to prevent erroneous detection due to a change in the natural environment due to rain or the like. Furthermore, damage to the sensor due to hitting the sensor during work or the like and contamination due to paint or the like can be prevented.

  The wireless communication device 76 has a rectangular parallelepiped shape and is attached to the surface of the substrate 70 opposite to the Doppler sensor 72. The wireless communication device 76 transmits the detection information 530 generated as a result of determining that the detection object 512 has crossed the front of the detection surface 74 by the Doppler sensor 72 to the outside of the base station 230, the management server 240, etc. It is. The wireless communication device 76 communicates in, for example, the 920 MHz band. The 920 MHz band can perform communication over a longer distance than the commonly used 2.5 GHz band. Further, the antenna 78 of the wireless communication device 76 extends from the back surface of the substrate 70. The Doppler sensor 72 is installed on the front side of the main body 14 by inserting the antenna 78 extending from the wireless communication device 76 into the space inside the lower cylindrical portion 14B of the main body 14. The wireless communication device 76 according to the embodiment of the present invention is connected to the antenna using a coaxial connector, but may be a pattern antenna or the like. Further, in order to reduce deterioration in communication performance due to interference from the support column 504, it is preferable that the support column 504 be provided at a distance of about 20 cm.

  The power source 82 is housed in the power source housing member 80. The power source 82 is, for example, a battery. The power source accommodation member 80 in which the power source 82 is accommodated has a rectangular parallelepiped shape, and is installed on the upper support 40A. The lead wire connected to the power source housing member 80 is passed through the support plate wiring hole 49 provided in the support plate 48A of the upper support 40A, and then through the lid wire hole 47 provided in the lid 42 By connecting the sensor 72 and the wireless communicator 76, power can be supplied from the power source 82 provided on the upper support 40A to the Doppler sensor 72 and the wireless communicator 76 provided on the lower support 40B. Further, an LED light (not shown) for confirming energization is provided in the vicinity of the lid wiring hole 47, and when the power source 82, the Doppler sensor 72, and the wireless communication device 76 are energized. , LED light (not shown) emits light.

(Configuration of mounting member)
The attachment member 100 includes an attachment portion 102 attached to the support column 504 and an arm portion 120 that supports the intrusion detection device 10. It is preferable that the mounting member 100 be formed of a material that is less likely to cause radio wave interference, as in the case 12.

  The attachment part 102 is demonstrated based on FIG. Fig.7 (a) shows the front view of the attaching part which concerns on embodiment of this invention. FIG.7 (b) shows the top view of the attaching part which concerns on embodiment of this invention. FIG.7 (c) shows the right view of the attaching part based on embodiment of this invention. FIG.7 (d) shows the left view of the attaching part based on embodiment of this invention.

The mounting portion 102 includes a holding portion 104 for holding the support column 504, and an arm portion connecting portion 112 provided on the left side of the holding portion 104 and for attaching the arm portion 120. The mounting portion 102 is connected with a hinge 106 so as to be able to open and close a pair of left and right mounting portion pieces 116 integrally formed with the holding portion 104 and the arm portion connecting portion 112.
The sandwiching portion 104 is in the form of a semi-elliptical pillar in plan view. A pinch hole 110 is provided at the center of the pinch portion 104. The diameter L 1 of the holding hole 110 is formed larger than the diameter L 2 of the support column 504.
The arm portion connecting portion 112 is a pillar having a T-shape in plan view, and is connected to an attaching portion engaging groove 126 formed in an arm portion 120 described later. The arm connecting portion 112 is provided with an open / close portion 108 at the center in the front-rear direction as viewed from the left side. By opening and closing the opening and closing portion 108 of the mounting portion 102 in the front and rear direction, the pair of mounting portion pieces 116 can be opened, and the support column 504 can be sandwiched. By fitting in the groove 126, the mounting portion 102 is attached to the support column 504 by closing.

  As shown in FIGS. 11 and 12, an elastic member 114 may be provided between the support column 504 and the clamping hole 110. The elastic member 114 is a substantially cylindrical member having one cut in the vertical direction. The elastic member 114 is made of, for example, rubber or silicon rubber. The length of the elastic member 114 in the vertical direction is longer than the length of the mounting portion 102 in the vertical direction. By sandwiching the elastic member 114 between the support column 504 and the holding hole 110, the attachment portion 102 can be firmly fixed to the support column 504 without being displaced.

  The arm unit 120 will be described based on FIGS. 8A to 8C. FIG. 8A (a) shows a front view of an arm unit according to the embodiment of the present invention. FIG. 8B (b) shows a plan view of the arm portion according to the embodiment of the present invention. FIG. 8B (c) shows a rear view of the arm unit according to the embodiment of the present invention. FIG. 8C (d) shows a right side view of the arm unit according to the embodiment of the present invention. FIG. 8C (e) shows a cross-sectional view along the line BB shown in FIG. 8A (a).

  The arm part 120 has an opening support part 122 connected to the attachment part 102 at one end, and an opening part 130 locking the intrusion detection device 10 at the other end side. The arm unit 120 is diagonally or orthogonal to the support column 504 at a distance from the work floor 502 or the ground of the temporary scaffold 500. Further, on the peripheral edge of the lower surface of the arm unit 120, a rain receiver 136 is provided to make it easy for the water droplets adhering to the arm unit 120 and the head 16 of the intrusion detection device 10 to flow down.

  The upper surface of the opening support portion 122 is inclined in the front-rear direction, and is formed so as to flow to the side surface when a water droplet or the like adheres. Further, the lower surface of the opening support portion 122 is lowered so as to draw a gentle curve toward the attachment portion 102 when viewed from the front. Three plate-like support members 124 are provided on the back surface of the opening support portion 122. By supporting the opening support portion 122 with the three plate-like support members 124, weight reduction can be achieved while maintaining the strength. Moreover, the attachment part 102 and the arm part 120 are connected by inserting the attachment part engaging groove 126 of the arm part 120 into the arm part connection part 112 of the attachment part 102 from above.

  The opening 130 of the arm 120 is provided with a locking hole 134 on the inner peripheral surface 132. The locking hole 134 has a substantially Z shape. That is, the locking hole 134 includes a first vertical hole 134 a provided vertically to the opening 130 from above the opening 130. A horizontal hole 134b is provided continuously with the first vertical hole 134a and perpendicular to the first vertical hole 134a. Furthermore, a second vertical hole 134c that is provided continuously with the horizontal hole 134b and provided vertically downward of the opening 130 is provided. The horizontal projection 134 is formed by fitting the locking projection 26 provided on the outer periphery of the main body 14 of the intrusion detection apparatus 10 into the first vertical hole 134a of the locking hole 134 and rotating the intrusion detection apparatus 10 clockwise. The locking projection 26 is locked in the second vertical hole 134 c of the locking hole 134. Therefore, the intrusion detection device 10 can be fixed to the arm unit 120.

(Installation method of intrusion detection device)
A method for installing the intrusion detection device 10 using the mounting member 100 will be described with reference to FIGS. FIG. 9 is an assembly view showing a mounting method of the intrusion detection device according to the embodiment of the present invention. FIG. 10 is a sectional view showing a state in which the intrusion detection device according to the embodiment of the present invention is attached to the arm portion. FIG. 11: shows the front view of the state which attached the intrusion detection apparatus and attachment member which concern on embodiment of this invention to the support | pillar. FIG. 12: shows the right view of the state which attached the intrusion detection apparatus and attachment member which concern on embodiment of this invention to the support | pillar.

(1) First, the mounting portion 102 is attached to the support column 504 separated from the building 510 of the temporary scaffold 500. The height H for attaching the mounting portion 102 is preferably about 0.9 m to 1.2 m. Further, it is preferable that the straight line connecting the support column 504 and the support column 504 separated from the building 510 be parallel to the extending direction of the straight line connecting the opening / closing part 108 of the mounting portion and the hinge 106. As a result, most of the passage area 506 provided in the temporary scaffold 500 can be within the detection area 516 of the Doppler sensor 72. In addition, when the diameter of the support column 504 is larger than the diameter of the holding hole 110 of the mounting portion 102, the mounting portion 102 can be obtained by providing the elastic member 114 between the support column 504 and the holding hole 110 of the mounting portion 102. It is possible to prevent the intrusion detection device 10 from slipping down due to its weight.

(2) Next, the mounting portion engaging groove 126 of the arm portion 120 is inserted from the upper surface of the arm portion connecting portion 112 of the mounting portion 102. The mounting portion 102 can be fixed to the support column 504 by inserting the mounting portion engaging groove 126 of the arm portion 120 into the arm portion connecting portion 112 of the mounting portion 102.

(3) Next, the lock projection 26 of the main body 14 is aligned with the lock hole 134 of the arm section 120, and the lock 10 is locked on the mounting member 100 by turning the lock detection apparatus 10 clockwise. Be done.

  By installing the intrusion detection device 10 on the support column 504 using the mounting member 100, the intrusion detection device 10 can be installed with a certain distance from the support column 504. Therefore, radio interference that the antenna 78 of the wireless communication device 76 receives from the support column 504 can be reduced. Also, in (1), when the straight line connecting the support column 504 and the support column 504 separated from the building 510 and the straight line connecting the opening / closing unit 108 of the mounting unit 102 and the hinge 106 coincide with each other. The detection surface 74 of the sensor 72 is installed parallel to a straight line connecting the support column 504 and the support column 504 separated from the building 510, and most of the passing area 506 can be in the detection area 516 of the Doppler sensor 72. Become.

(Configuration of the crime prevention system of the first embodiment)
FIG. 16 shows a block diagram of the crime prevention system according to the first embodiment of the present invention. In the crime prevention system 200, for example, the intrusion detection device 10 having the Doppler sensor 72 and the wireless communication device 76 and the base station 230 are provided at the construction site, and are transmitted to and received from the management server 240 and the management terminal 260 via the network. Yes. When the detection information 530 is simply described, the determination result that the detected object 512 has crossed the front of the detection surface 74 by the Doppler sensor 72 and the time when the detected object 512 has crossed the front of the detection surface 74 are obtained. Detection information 530A having information, detection information 530B in which the wireless communication terminal information 534 of the wireless communication device 76 is added to the detection information 530A, and detection information 530C in which the base station information 536 of the base station 230 is added to the detection information 530B. Are collectively referred to. The wireless communication terminal information 534 is information for identifying the wireless communication device 76, and the base station information 536 is information for identifying the base station 230.

  The Doppler sensor 72 of the intrusion detection device 10 is provided with a transmission unit 212. The transmitting unit 212 is a portion that transmits the generated detection information 530A to the receiving unit 222 of the wireless communication device 76 as a result of the Doppler sensor 72 determining that the detection object 512 has crossed the front of the detection surface 74.

  The wireless communication device 76 of the intrusion detection device 10 is provided with a reception unit 222 and a transmission unit 224. The receiver 222 is a part that receives the detection information 530A transmitted from the transmitter 212 of the Doppler sensor 72. The transmitting unit 224 is a portion that transmits the detection information 530B obtained by adding the wireless communication terminal information 534 of the wireless communication device 76 to the detection information 530A received by the receiving unit 222 of the wireless communication device 76 to the receiving unit 232 of the base station 230. .

The base station 230 is provided, for example, in an office at a construction site, communicates with the wireless communication device 76 of the intrusion detection device 10, and communicates with the management server 240 or the like via a network.
The base station 230 is provided with a receiver 232 and a transmitter 234. The receiving unit 232 is a part that receives the detection information 530 </ b> B transmitted from the transmitting unit 224 of the wireless communication device 76. The transmission unit 234 is a part that transmits detection information 530C obtained by adding the base station information 536 of the base station 230 to the detection information 530B received by the reception unit 232 of the base station 230 to the acquisition unit 242 of the management server 240.

The management server 240 communicates with the base station 230 and the management terminal 260 via a network, and is provided, for example, at a place other than a construction site.
The management server 240 is provided with an acquisition unit 242 and a distribution unit 244. The acquisition unit 242 is a part that receives the detection information 530C transmitted from the transmission unit 234 of the base station 230. Further, the distribution unit 244 determines the management terminal 260 that transmits the detection information 530C from the base station information 536 of the detection information 530C received by the acquisition unit 242 of the management server 240, and sends it to the reception unit 262 of the corresponding management terminal 260. The part to send.

The management terminal 260 is a smartphone or a personal computer. In particular, when the management terminal 260 is a smart phone, it is notified even when it is in a construction site or a place other than the front of a personal computer, and the detection information 530C can be confirmed.
The management terminal 260 is provided with a receiving unit 262 and a display unit 264. The receiving unit 262 is a part that receives the detection information 530C transmitted from the distribution unit 244 of the management server 240, and transmits the detection information 530C to the display unit 264. In addition, the display unit 264 is a portion that displays the detection information 530C transmitted from the receiving unit 262 on the screen of the management terminal 260. The site manager 550 can confirm the detection information 530C by displaying the detection information 530C on the management terminal 260 as shown in FIG.

  In the security system 200, as a result of determining that the detection object 512 has crossed the front of the detection surface 74 by the Doppler sensor 72, the flow of displaying the generated detection information 530A on the display unit 264 of the management terminal 260 is shown in FIG. It explains based on it. FIG. 17 is a flowchart showing detection information of the crime prevention system according to the first embodiment of the present invention on a management terminal.

First, it is determined by the Doppler sensor 72 provided in the intrusion detection device 10 that the detection object 512 has crossed the front of the detection surface 74, and the detection information 530A is generated (S101).
Next, the detection information 530A generated by the Doppler sensor 72 is transmitted from the transmission unit 212 of the Doppler sensor 72 to the reception unit 222 of the wireless communication device 76 (S102).
Next, detection information 530B in which the wireless communication terminal information 534 of the wireless communication device 76 is added to the detection information 530A received by the receiving unit 222 of the wireless communication device 76 is received from the transmitting unit 224 of the wireless communication device 76 It transmits to the part 232 (S103).
Next, the management server 240 is acquired from the transmission unit 234 of the base station 230 via the network from detection information 530C in which the base station information 536 of the base station 230 is added to the detection information 530B received by the reception unit 232 of the base station 230 It transmits to the part 242 (S104).
Next, the management terminal 260 that transmits the detection information 530C is determined from the base station information 536 of the detection information 530C received by the acquisition unit 242 of the management server 240, and the detection information 530C is transmitted from the distribution unit 244 of the management server 240 to the network. It transmits to the receiving part 262 of applicable management terminal 260 via (S105).
Finally, the detection information 530C received by the receiving unit 262 of the management terminal 260 is displayed on the display unit 264 provided in the management terminal 260 (S106). By being displayed on the display unit 264, the site manager 550 can confirm the detection information 530C (see FIG. 18).

  In the crime prevention system 200 according to the present invention, although only one intrusion detection device 10 is shown, a plurality of intrusion detection devices 10 can be provided at appropriate positions of respective temporary scaffolds, individually with the base station 230 and so on. It can transmit and receive. When a plurality of intrusion detection devices 10 are used, it is determined by which intrusion detection device 10 the detection information 530 is detected by the wireless communication terminal information 534 set in the wireless communication device 76 of each intrusion detection device 10 be able to.

  Further, although the base station 230 is provided in the crime prevention system 200 according to the present invention, the intrusion detection apparatus 10 may be connected to the network without the base station 230 and connected to the management server 240. When using in a place where radio waves of a communication carrier do not enter, it is preferable to provide a base station 230 at the construction site.

(Configuration of the crime prevention system of the second embodiment)
FIG. 19 shows a functional configuration of a crime prevention system 300 according to the second embodiment. Compared to the security system 200 described above, the security system 300 according to the second embodiment instructs the output of the detection information data 532 stored in the management server 240 from the management terminal 260, and the stored detection information data The difference is that 532 is output. Therefore, the output of the accumulated detection information data 532 is instructed from the management terminal 260, the output part of the accumulated detection information data 532 is described, and is the same as the above-described crime prevention system 200 according to the embodiment of the present invention. The portions are denoted by the same reference numerals, and the same description will not be repeated.

The crime prevention system 300 further includes a detection information recording unit 250 that accumulates the detection information 530C. In addition, the processing unit 246 instructs the management server 240 of the above-described crime prevention system 200 to output the detection information data 532 accumulated from the detection information recording unit 250. Furthermore, the management terminal 260 has a transmitting unit 266 for transmitting output instruction information 540 for instructing output of the stored detection information data 532.
The output instruction information 540 includes output designation period information of the accumulated detection information data 532, wireless communication terminal information 534, management terminal information 538 and the like. The management terminal information 538 is information for specifying the management terminal 260 that has transmitted the output instruction information 540.

The detection information recording unit 250 stores the detection information 530 generated by the Doppler sensor 72.
The processing unit 246 is a part that receives the detection information 530 from the acquisition unit 242, transmits the detection information 530 to the detection information recording unit 250, and instructs processing for writing. Further, the processing unit 246 receives the output instruction information 540 from the acquisition unit 242, issues an output instruction to the detection information recording unit 250, and transmits the detection information data 532 accumulated from the detection information recording unit 250 to the distribution unit 244. Part.
The transmission unit 266 operates the display unit 246 of the management terminal 260 and outputs the output instruction information from the output instruction information 540 to the acquisition unit 242 of the management server 240 in order to output the detection information data 532 accumulated by the site manager 550. 540 is a part to transmit.

  In the crime prevention system 300, as a result of determining that the detection object 512 has crossed the front of the detection surface 74 by the Doppler sensor 72, the flow of accumulating the generated detection information 530 in the detection information recording unit 250 is based on FIG. explain. FIG. 20 is a flow chart of accumulating detection information of the crime prevention system according to the second embodiment of the present invention in a detection information recording unit.

First, it is determined by the Doppler sensor 72 provided in the intrusion detection device 10 that the detection object 512 has crossed the front of the detection surface 74, and the detection information 530A is generated (S201).
Next, the detection information 530A generated by the Doppler sensor 72 is transmitted from the transmission unit 212 of the Doppler sensor 72 to the reception unit 222 of the wireless communication device 76 (S202).
Next, detection information 530B obtained by adding the wireless communication terminal information 534 of the wireless communication device 76 to the detection information 530A received by the reception unit 222 of the wireless communication device 76 is transmitted from the transmission unit 224 of the wireless communication device 76 to the base station 230. The data is transmitted to the receiving unit 232 (S203).
Next, the detection information 530C obtained by adding the base station information 536 of the base station 230 to the detection information 530B received by the reception unit 232 of the base station 230 is acquired from the transmission unit 234 of the base station 230 via the network. The data is transmitted to the unit 242 (S204).
Finally, the detection information 530C received by the acquisition unit 242 of the management server 240 is transmitted from the processing unit 246 of the management server 240 to the detection information recording unit 250, and the detection information 530C is written in the detection information recording unit 250 (S205). .

  The Doppler sensor 72 determines that the detected object 512 has crossed the front of the detection surface 74, and is sent to the detection information recording unit 250 each time the detection information 530A is generated, and writes the detection information 530C in the detection information recording unit 250 As a result, the detection information 530C can be accumulated.

  The flow of outputting the detection information data 532 accumulated from the management terminal 260 in the crime prevention system 300 and outputting the detection information data 532 accumulated from the detection information recording unit 250 will be described based on FIG. FIG. 21 is a flowchart for outputting detection information of the security system according to the second embodiment of the present invention.

First, the display unit 246 of the management terminal 260 is operated to generate output instruction information 540 (S211).
Next, the generated output instruction information 540 is transmitted from the transmission unit 266 of the management terminal 260 to the acquisition unit 242 of the management server 240 (S212).
Next, the output instruction information 540 received by the acquisition unit 242 of the management server 240 is transmitted from the acquisition unit 242 to the processing unit 246 (S213).
Next, the output instruction information 540 is transmitted from the processing unit 246 to the detection information recording unit 250, and the accumulated detection information data 532 is output (S214).
Next, the detection information data 532 accumulated based on the management terminal information 538 of the output instruction information 540 is transmitted from the distribution unit 244 of the management server 240 to the reception unit 262 of the management terminal 260 (S215).
Finally, the stored detection information data 532 received by the reception unit 262 of the management terminal 260 is displayed on the display unit 264 provided in the management terminal 260 (S216).

  An instruction to output the detection information data 532 stored from the management terminal 260 can be issued, and the detection information data 532 stored from the detection information recording unit 250 can be output. By being displayed on the display unit 264, the field manager 550 can confirm the accumulated detection information data 532.

The crime prevention system 300 according to the present invention can further control the Doppler sensor 72 of the specific or all intrusion detection devices 10 by transmitting the Doppler sensor control instruction information 542 from the management terminal 260 or the management server 240. It is.
The Doppler sensor control instruction information 542 includes, for example, Doppler sensor control information 544, wireless communication terminal information 534, and base station information 536. Further, the Doppler sensor control information 544 is information for controlling the security start or security end of the Doppler sensor 72, for example.

The receiving unit 232 of the base station 230 of the crime prevention system 300 further has a function of receiving the Doppler sensor control instruction information 542 transmitted from the management server 240 or the management terminal 260. Further, the transmitter 234 of the base station 230 of the crime prevention system 300 wirelessly communicates the Doppler sensor control instruction information 542 received by the receiver 232 of the base station 230 based on the wireless communication terminal information 534 of the Doppler sensor control instruction information 542. It has a function of transmitting to the reception unit 222 of the device 76.
The receiver 222 of the wireless communication device 76 of the crime prevention system 300 further has a function of receiving the Doppler sensor control instruction information 542 transmitted from the transmitter 234 of the base station 230. Further, the transmitting unit 224 of the wireless communication device 76 of the crime prevention system 300 further has a function of transmitting the Doppler sensor control instruction information 542 received by the receiving unit 222 of the wireless communication device 76 to the receiving unit 214 of the Doppler sensor 72 described later. Have.
In addition, the Doppler sensor 72 of the security system 300 further includes a receiver 214. The receiving unit 214 is a part that receives the Doppler sensor control instruction information 542 transmitted from the transmitting unit 224 of the wireless communication device 76, and executes the instruction based on the Doppler sensor control information 544 of the Doppler sensor control instruction information 542.

  A flow of controlling the Doppler sensor 72 by transmitting the Doppler sensor control instruction information 542 to the specified or all the intrusion detection devices 10 by operating the display unit 264 of the management terminal 260 will be described based on FIG. FIG. 22 is a flowchart for controlling the Doppler sensor based on the Doppler sensor control instruction information using the crime prevention system according to the second embodiment of the present invention.

First, the display unit 264 of the management terminal 260 is operated to generate the Doppler sensor control instruction information 542 (S221).
Next, based on the base station information 536 of the Doppler sensor control instruction information 542, the generated Doppler sensor control instruction information 542 is transmitted from the transmitting unit 266 of the management terminal 260 to the receiving unit 232 of the base station 230 via the network. (S222).
Next, based on the wireless communication terminal information 534 of the Doppler sensor control instruction information 542, the Doppler sensor control instruction information 542 received by the receiving unit 232 of the base station 230 is transmitted from the transmitting unit 234 of the base station 230 to the wireless communication device 76. To the receiving unit 222 (S223).
Next, the Doppler sensor control instruction information 542 received by the receiving unit 222 of the wireless communication device 76 is transmitted from the transmitting unit 224 of the wireless communication device 76 to the receiving unit 214 of the Doppler sensor 72 (S224).
Finally, processing is executed based on the Doppler sensor control information 544 of the Doppler sensor control instruction information 542 received by the receiving unit 214 of the Doppler sensor 72 (S225).
Thus, it is possible to control the Doppler sensor 72 of a particular or all intrusion detection devices 10.

  In the security system 300 according to the present invention, the detection information recording unit 250 is provided separately from other devices, but may be provided in the management server 240.

(effect)
By using the Doppler sensor 72, the intrusion detection device 10 can reduce false detections caused by natural environments such as small animals and light / temperature / humidity, which were frequently erroneously detected by infrared sensors.
Further, since the intrusion detection device 10 does not need to expose the detection surface 74 of the Doppler sensor 72, the Doppler sensor 72 can be accommodated in the housing 12, and the Doppler sensor 72 is prevented from being damaged, and even if paint or the like adheres to it. It can be used without changing its performance. The Doppler sensor 72 can detect the object 512 alone and is easier to install than an intrusion detection device that requires a sensor transmission device and a sensor reception device.

  By providing the wireless communication device 76 in the intrusion detection device 10, the wireless communication device 76 can be installed anywhere as long as radio waves enter, and the detection information 530 detected by the Doppler sensor 72 is transmitted to the outside through the wireless communication device 76. be able to.

  An intruder who has invaded the temporary scaffold 500 (a detected object is detected by the detection area 516 extending forward of the detection surface 74 of the Doppler sensor 72 provided in the intrusion detection device 10 overlapping a part of the passing area 506 of the temporary scaffold 500) It is possible to detect the object 512).

  When the intrusion detection device 10 is installed outdoors, the individual parts are broken by separately providing the mounting portion 102 attached to the support column 504 of the temporary scaffold 500, the arm portion 120, and the intrusion detection device 10 Even if it is easy to replace.

  Also, the detection information 530 detected by the Doppler sensor 72 is transmitted to the management server 240 via the wireless communication device 76, and the detection information 530 is transmitted to the management terminal 260 possessed by the site administrator 550 via the management server 240. As a result, even if the site manager 550 is at a place other than the construction site, the detection information 530 can be notified.

  Furthermore, since the detection information 530 is stored in the detection information recording unit 250, when it is desired to output the stored detection information data 532, an instruction to output the detection information 530 is sent from the management terminal 260 to the management server 240. 530 can be confirmed by the management terminal 260. Furthermore, since the detection information 530 can be output, the detection information 530 can be easily reported from the site manager 550 of the construction site to the owner.

As described above, the embodiments of the present invention are disclosed in the above description, but the present invention is not limited thereto.
That is, various changes can be added to the embodiments described above with respect to the mechanism, the shape, the material, the number, the position, the arrangement, and the like without departing from the scope of the technical idea and object of the present invention. Which are included in the present invention.

DESCRIPTION OF SYMBOLS 10 intrusion detection apparatus 12 housing | casing 14 main-body part 14A upper cylindrical part 14B lower cylindrical part 16 head 18 opening part of main-body part 20 connection part 21 flange 22 O ring 24 screwing groove 26 latching protrusion 28 support body connection part 30 support Body engaging portion 32 Head opening 34 Screwing projection 36 Identification ring 40 Support 40A Upper support 40B Lower support 42 Lid 44 Support connection hole 46 Support engagement projection 47 Cover wiring hole 48 Support plate 49 support plate wiring hole 50 substrate support plate 52 substrate support side plate 54 substrate attachment portion 56 antenna installation hole 58 antenna support portion 60 screw 70 substrate 72 Doppler sensor 74 detection surface 76 wireless communication device 78 antenna 80 power source housing member 82 power source 100 Mounting member 102 Mounting portion 104 Clamping portion 106 Hinge 108 Opening and closing portion 110 Clamping hole 112 Arm portion connection portion 114 Elastic member 116 Mounting portion piece 120 Arm portion 122 Opening portion support portion 124 Support member 126 Mounting portion engagement groove 130 Opening portion of arm portion 132 Inner circumferential surface 134 Locking hole 136 Rain receiver 200 First embodiment In the form of a security system 212 a transmitter of a Doppler sensor 214 a receiver of a Doppler sensor 222 a receiver of a wireless communication device 224 a transmitter of a wireless communication device 230 a base station 232 a receiver of a base station 234 a transmitter of a base station 240 a management server 242 Acquisition unit 244 Distribution unit 246 Processing unit 250 Detection information recording unit 260 Management terminal 262 Reception unit 264 Display unit 266 Transmission unit 300 Security system 500 of the second embodiment Temporary scaffolding 502 Work floor 504 Strut 506 Passage area 510 Building 512 Detection object 516 Detection area 530 detection Information 532 Accumulated detection information 534 Radio communication terminal information 536 Base station information 538 Control terminal information 540 Output instruction information 542 Doppler sensor control instruction information 544 Doppler sensor control information 550 Administrator H Intrusion detection device installation height L1 Holding hole Diameter of L2 pillar diameter

Claims (5)

The microwaves are transmitted and received from the detection surface, and signals having different phases by 90 degrees are output as Doppler frequency signals based on the transmitted and received signals, and the movement direction of the object is detected from the phase difference of the obtained signals. A Doppler sensor for determining that an object to be detected has crossed the front of the detection surface;
And a wireless communication device for transmitting the detection information generated as a result of determining that the detection object has crossed the front of the detection surface by the Doppler sensor.
An intrusion detection device, wherein a detection area extending forward of a detection surface of the Doppler sensor overlaps a part of a passing area of a temporary scaffold. It is an intrusion detection device that is installed on a support of a temporary scaffold using a mounting member,
The intrusion detection device is
The microwaves are transmitted and received from the detection surface, and signals having different phases by 90 degrees are output as Doppler frequency signals based on the transmitted and received signals, and the movement direction of the object is detected from the phase difference of the obtained signals. A Doppler sensor for determining that an object to be detected has crossed the front of the detection surface;
A wireless communication device that transmits detection information generated as a result of the determination that the object has crossed the front of the detection surface by the Doppler sensor;
A power source for supplying power to the Doppler sensor and the wireless communication device;
With
The mounting member is
An attachment part to be attached to the column that is separated from the building of the temporary scaffold;
One end is connected to the mounting portion, and the other end has an opening for locking the intrusion detection device, and is obliquely or orthogonally crossed with the support column at a distance from the work floor or ground of the temporary scaffold. An arm,
With
The intrusion detection device is inserted into the opening of the arm portion, and the engagement projection provided on the intrusion detection device is engaged with the engagement hole provided on the inner circumferential surface of the opening. The intrusion detection device is fixed at a certain distance from the support column of the temporary scaffold, and a detection area extending in front of the detection surface of the Doppler sensor overlaps a part of the passage area of the temporary scaffold. An intrusion detection device characterized by that. The microwaves are transmitted and received from the detection surface, and signals having different phases by 90 degrees are output as Doppler frequency signals based on the transmitted and received signals, and the movement direction of the object is detected from the phase difference of the obtained signals. A Doppler sensor for determining that an object to be detected has crossed the front of the detection surface;
An intrusion detection device comprising: a wireless communication device for transmitting the detection information generated as a result of the determination that the object to be detected has crossed the front of the detection surface by the Doppler sensor;
A management server for receiving the detection information from the wireless communication device;
A management terminal for receiving the detection information from the management server;
A security system comprising:
The management server includes an acquisition unit that receives the detection information, and a distribution unit that distributes the detection information to the management terminal.
The crime prevention system, wherein the management terminal has a reception unit that receives the detection information from the distribution unit of the management server, and a display unit that displays the detection information on the management terminal.   The crime prevention system according to claim 3, wherein the intrusion detection device is the intrusion detection device according to claim 1 or 2. A detection information recording unit for storing the detection information;
The management server further includes a processing unit that outputs detection information data accumulated from the detection information recording unit,
The crime prevention system according to claim 3 or 4, wherein the management terminal further includes a transmission unit for transmitting output instruction information of the accumulated detection information data.