JP5219220B2 - Load control system - Google Patents

Description

  The present invention detects a suspicious person's intrusion from a veranda or the like and activates an alarm device or turns on a lighting device to intimidate the intruder and prevent the resident from entering the suspicious person. It relates to the load control system to report.

  2. Description of the Related Art Conventionally, there has been proposed an illumination control system that controls lighting and extinguishing of an outdoor lighting device according to a detection signal from a human body sensor installed outdoors (see Patent Document 1). According to such a lighting control system, since a lighting device is turned on when a person enters the detection area of the human body sensor, there is an effect of psychologically discouraging intrusion for a suspicious person, It can also function as a nighttime security device. However, the conventional lighting control system is not configured to report the approach of a suspicious person or the like to an indoor householder. In addition, since the lighting device is turned on only when a person enters the detection range of the pyroelectric human body sensor, it is effective against the intrusion of a suspicious person from outside the detection range of the human body sensor. I can't demonstrate it.

  In residential buildings, security cameras are installed in entrance halls, corridors, courtyards, etc., and although they have a certain security effect, they are usually on verandas and balconies of individual units. No security camera, human body sensor, or lighting device is installed. However, in such an apartment house, it is possible to enter the veranda of the dwelling unit on the upper floor through a rain gutter from the rooftop or the like, and a criminal case has actually occurred.

  In order to prevent suspicious persons from entering from the verandas and balconies, installing security cameras, human body sensors, and lighting devices to cover all verandas and balconies of the entire apartment complex is costly and aesthetically pleasing. Therefore, it is not realistic, and it is desired to realize a system that detects an intrusion of a suspicious person effectively, intimidates the suspicious person, and notifies the resident of the fact at a low cost.

  Therefore, the present applicant has proposed a security sensor configured to provide a pressure sensor on the handrail portion of the veranda or balcony, and to detect the load by the pressure sensor when an intruder puts weight on the handrail. (See Patent Document 2). As shown in FIG. 6, in the conventional security sensor, a plurality of pressure sensors 151 are provided at regular intervals on the top portion of a handrail body 150 provided horizontally, and a base member is provided between the pressure sensors 151. 152 is provided. A sensor headboard 153 is covered from above so as to cover the pressure sensor 151 and the base member 152. A pressing member (not shown) for pressing the pressure sensor 151 is provided on the inner side of the sensor headboard 153 and facing the pressure sensor 151. Note that Patent Document 2 does not particularly mention measures after detecting the intrusion of a suspicious person.

  The conventional security sensor configured as described above has the merit that it is inconspicuous in appearance because it is provided inside the handrail part, but the problem is that the structure is complicated and the cost is high. Is not solved. Further, depending on which part of the handrail the intruder places a hand on, the pressure may not be accurately detected. Furthermore, there is a problem that the structure becomes more complicated when installed on a vertical structure such as a rain gutter.

Japanese Patent Laid-Open No. 2007-200046 JP 2008-169596 A

  The present invention has been made to solve the above-described problems, has a relatively simple structure, is low in cost, and can be installed in various places without impairing the appearance of the building. For the purpose of a load control system that can intimidate a suspicious person by turning on a specific load such as a lighting device or an alarm device against the intrusion of a suspicious person and report the fact to the resident Yes.

  In order to achieve the above object, the invention of claim 1 is a load control system using a strain gauge affixed to an inner peripheral surface of a structure constituted by a hollow member visually recognized as an external appearance of a building. A plurality of stress sensors, and a stress cause estimation that compares the stress generated in the structure with a predetermined threshold detected by any one of the plurality of stress sensors and estimates the cause of the stress applied to the structure And a load control unit that activates a predetermined load set in advance when the cause estimated by the stress cause estimation unit is an intrusion of a suspicious person.

  According to a second aspect of the present invention, in the load control system according to the first aspect, the stress cause estimating unit compares the stresses detected by the plurality of stress sensors, and the stress is applied to the structure. Is estimated.

  A third aspect of the present invention is the load control system according to the first or second aspect, wherein the structure is a gutter or a handrail.

  According to a fourth aspect of the present invention, in the load control system according to any one of the first to third aspects, the predetermined load is an alarm device or one or a plurality of lighting devices.

  According to the present invention, the stress sensor is configured using a strain gauge attached to the inner peripheral surface of a structure constituted by a hollow member visually recognized as the exterior of a building such as a rain gutter or a handrail. Therefore, there is no need for base members and sensor headboards as in the above-mentioned conventional example, the structure is simple, the cost is low, and stress sensors are installed in various places such as vertical rain gutters without impairing the appearance of the building. Is possible. In addition, since a stress sensor using a strain gauge can accurately measure the stress value, it can be estimated by judging whether the cause of applying stress to the structure is a person or a bird. . Therefore, it is possible to prevent a malfunction when the bird simply stops on the handrail. And when the cause of stress applied to the structure is the intrusion of a suspicious person, a predetermined load set in advance, for example, an alarm device or a lighting device is operated, so that a threatening effect is exerted on the suspicious person. At the same time, the resident can be notified of the intrusion of the suspicious person.

  In addition, when stress is detected from multiple stress sensors, the route from which the suspicious person attempted to enter from which location or from where the stress was detected, the time when the stress was detected, or the stress value, etc. Can be estimated. This information is useful in later field verifications and evidence investigations.

The figure which shows schematic structure of the detached house provided with the load control system which concerns on one Embodiment of this invention. The figure which shows an example of the stress sensor provided in the handrail. The block diagram which shows the structure of the indoor monitor apparatus in the said load control system. The figure which shows schematic structure at the time of applying the said load control system to an apartment house. The block diagram which shows the structure of the main | base station of a load control system at the time of applying to an apartment house, and a subunit | mobile_unit. The figure which shows the structure of the conventional security sensor which provided the pressure sensor in the handrail part of the veranda or the balcony.

  A load control system according to an embodiment of the present invention will be described. FIG. 1 shows a schematic configuration when the load control system according to the present embodiment is installed in a detached house. In general, an outdoor unit (slave unit) 3 of a TV door phone device including a TV camera 2 is provided near a gate or an entrance of a building such as a detached house. In addition, an indoor monitor device (parent device) 4 of a TV door phone device is provided in a living room, a dining kitchen, or the like. On the other hand, the lighting device (lighting load) 21... Is turned on and off on the wall surfaces of the entrance 11, the hallway 12, the stairs 13, the living room 14, the kitchen 15, the bedrooms 16, 17. Load control devices 31... Also serving as wall switches are provided, and these load control devices 31... And lighting devices 21. Connected through. Some or all of these load control devices 31... Have a reception function for receiving a predetermined signal wirelessly transmitted from the indoor monitor device 4 of the television door phone device via a wired or radio wave as a medium. Yes.

  In this embodiment, all the load control devices 31... Have the above reception function, and further have a load control function for controlling the load stage in one or a plurality of loads on and off and in the on state. As the load, in addition to the lighting devices 21..., An alarm device, a reporting device for a security company, an electric lock (automatic door lock), or the like can be controlled. Further, the load control device 31... Is also operated by a user and receives a predetermined signal from an operation switch (for example, a remote control device) 80 that wirelessly transmits a predetermined signal corresponding to the operated content using radio waves as a medium. It can be received. The operation switch 80 is not necessarily a remote control device, and may be another switch installed or fixed on the wall surface.

  The lighting control unit (load control unit) provided in the indoor monitor device 4 wirelessly transmits a control signal for lighting to a specific or all of the load control devices 31, and one or a plurality of preset control signals are set. Are turned on (lighted). The roof-side sensor 5 installed on the ceiling of the entrance lights or turns off the lighting device 21 or the like according to the outdoor illuminance or whether or not there is a person in the predetermined detection area 6. When the indoor monitor device 4 receives the lighting signal or the extinguishing signal from the store side sensor 5, the lighting control signal or the extinguishing signal is turned on or off with respect to the load control device 31. Therefore, a control signal is wirelessly transmitted to turn on (turn on) or turn off (turn off) the lighting device 21.

  Human body detection sensors 71, 72, and 73 provided in the entrance 11, the corridor 12, and the stairs 13 detect the presence of a person when a person enters a predetermined detection area. The indoor monitor device 4 sends a lighting signal for turning on the lighting device or a turn-off signal notifying that a person has left when the presence of a person in the predetermined detection area is not detected for a certain period of time. Alternatively, wireless transmission is performed to the nearest load control device 31, 32, or 33. The load control devices 31, 32, and 33 have a function of turning on or off the lighting devices 21, 22, 23, and 24, respectively, according to a lighting signal or a light-off signal from the human body sensors 71, 72, and 73, and the user's It has a normal switch function for turning on or off the lighting devices 21, 22, 23, and 24 by operation.

  The load control devices 34 to 37 and the like provided in the living room 14 and the bedroom 16 or 17 turn on the lighting devices 25 to 28 or the like according to a predetermined control signal transmitted from the operation switch (remote control device) 80 or the like. It has a function of controlling illuminance at the time of off and on.

  Each of the load control devices 31 to 37 communicates with the indoor monitor device 4 via wired or wireless communication. In addition, it is configured to perform master-slave communication in which one load control device (for example, the load control device 34 or 35 provided in the living room 14 or the kitchen 15) is a master and another load control device is a slave. May be. Furthermore, each of the load control devices 31 to 37 receives a signal from the operation switch 80 by a time division multiplexing method or a frequency multiplexing method.

  In the load control system according to the present embodiment, one or more (entirely) each of the structures composed of hollow members that are visually recognized as the exterior of the building, such as the handrail 51 and the gutter 52 of the veranda or balcony. A plurality of) stress sensors 60 are provided, the stresses detected by the stress sensors 60 are compared with a predetermined threshold value, the cause of the stress being applied to those structures is estimated and estimated. When the cause is the intrusion of a suspicious person, a predetermined load such as a preset alarm device or lighting device is activated.

  2A and 2B show the attachment state of the stress sensor 60 provided on the handrail 51 and the gutter 52, respectively. The stress sensor 60 is a strain sensor affixed to the inner peripheral surface of the hollow member, and two strain sensors may be arranged in directions orthogonal to each other, and a bridge is configured by four strain sensors as shown in the figure. It may be affixed as is. Further, the strain gauge may be a strain gauge using a metal resistor or a strain gauge using a semiconductor. Alternatively, a voltage may be generated by being pressurized like a piezoelectric element. These strain gauges are very small, have high accuracy in detecting stress, are relatively inexpensive, and are easy to install. Moreover, since these stress sensors (strain gauges) 60 are installed outdoors, rainwater flows through the rain gutter 52, so that it is needless to say that waterproof treatment is performed.

  As the handrail 51, an extruded material of aluminum or the like is generally used. Further, a pipe made of a metal material or resin that is resistant to rust such as aluminum or stainless steel is used for the rain gutter 52, particularly in a vertical portion. These members are hollow, and it is easy to affix the strain gauge on the inner peripheral surface thereof, and distortion is likely to occur when a load is applied by hanging a person. Therefore, when the suspicious person tries to enter through the handrail 51 or the gutter 52, the handrail 51 or the gutter 52 is distorted. The value of stress generated in the rain gutter 52 can be detected.

  FIG. 3 is a diagram showing a block configuration of the indoor monitor device 4. The indoor monitor device 4 is connected to the plurality of stress sensors 60 and is detected by any one of the plurality of stress sensors 60, and the stress generated in the structure such as the handrail 51 and the rain gutter 52 and a predetermined threshold value. In comparison, the stress cause estimation unit 41 that estimates the cause of applying stress to the structure, and a predetermined load that is set in advance when the cause estimated by the stress cause estimation unit 41 is an intrusion of a suspicious person For example, information such as a load control unit 42 that operates an alarm device or a lighting device, a stress detected by the stress sensor 60 and a position of the stress sensor 60 that detects the stress is displayed on a display device 48 such as a liquid crystal display device. And an image information output unit 46 for the purpose. The load control unit 42 further includes an alarm control unit 42A and an illumination control unit 42B. The stress cause estimation unit 41 and the load control unit 42 are configured by a CPU or the like. The stress cause estimating unit 41 is connected to a storage unit (memory) 43 that stores the position of each stress sensor 60 and a time measuring unit (timer) 44 for specifying the time when the stress is detected by each stress sensor 60. ing. Moreover, the electric lock control part 45 and the electric lock 81 as the load control part 42 may be installed as an option as needed. Note that description of the TV door phone function unit (not shown) is omitted.

  In a state where the crime prevention function of the indoor monitor device 4 is effective, when a stress value is output from any of the stress sensors 60 or when the stress value changes from any of the stress sensors 60, the stress cause estimating unit 41 The stress value from the stress sensor 60 is compared with a threshold value stored in the storage unit 43. When the stress value is larger than the threshold value, the stress cause estimating unit 41 determines that there is a high possibility that the suspicious person is trying to enter, and the predetermined value is given from the speaker 47 of the indoor monitor device 4 via the alarm control unit 42A. Are output, and one or a plurality or all of the lighting devices 21... Set in advance are turned on. Furthermore, when the electric lock control unit 45 and the electric lock 81 are optionally provided in advance, the electric lock 81 is unlocked via the electric lock control unit 45 to secure an escape route.

  When a plurality of stress sensors 60 are provided in one structure such as the handrail 51 and the rain gutter 52, if a suspicious person touches the structure, all the stresses provided in the structure are obtained. The sensor 60 reacts and outputs a stress value corresponding to the strain at the location where the stress sensor 60 is provided. The output value of each stress sensor 60 is the distance from the location where the force is applied to the structure. It changes according to. Therefore, the stress cause estimating unit 41 can estimate the place where the stress is applied to the structure by comparing the stresses detected by the plurality of stress sensors 60.

  In addition, for example, when a suspicious person is going to enter the rain gutter 52 on the first floor through the veranda on the second floor, the stress sensor 60 provided in the rain gutter 52 on the first floor reacts first, The stress sensor 60 of the handrail 51 of the veranda on the second floor reacts. Therefore, the stress cause estimating unit 41 monitors the current time output from the time measuring unit 44 and compares the time during which the stress is output from the plurality of stress sensors 60, so that the suspicious person may enter through which route. Can be estimated.

  The stress cause estimation unit 41 causes the storage unit 43 to store position information for specifying the stress sensor 60 that detects the stress, a stress value, a time when the stress is detected, and the like. Thereby, it is possible to estimate from which route or from which place the suspicious person is trying to invade, and this information is useful in subsequent field verification, evidence examination, and the like.

  By the way, although it is rare that a suspicious person hangs on the railing 51 of a veranda or straddles it, a bird stops on a daily basis or a resident dries a futon. However, the stress generated in the handrail 51 by a bird or a futon is small, and the value is greatly different from that when a person is hanging or straddling. Therefore, the stress cause estimating unit 41 can distinguish between the intrusion of the suspicious person and other cases by appropriately selecting a threshold value to be compared with the stress value output from the stress sensor 60. Also, by setting a plurality of threshold values, the alert level can be set in a plurality of stages such as a safety level, a caution level, and a danger level.

  The indoor monitor device 4 may have a mode selection function so that the stress detection by the stress sensor 60, that is, the crime prevention function, functions only when going out, at night, and at bedtime. In addition, all the stress sensors 60 and the indoor monitor device 4 may be directly connected via wired or wireless, but a certain number of stress sensors 60 are once connected to a relay device (not shown), The indoor monitor device 4 may be configured to be directly connected via a wired or wireless connection. Furthermore, the indoor monitor device 4 is configured to turn on a load such as an alarm device or a lighting device in accordance with an output from a sensor other than the stress sensor 60 such as a gas leak alarm device or a fire alarm device. It may be.

  FIG. 4 shows a schematic configuration when the load control system is applied to the entire apartment house. The load control system for an apartment house is composed of one master unit 4A installed in a management room or a distribution room and a plurality of slave units (indoor monitor devices) 4B provided in each dwelling unit. FIG. 5 shows a block configuration of the parent device 4A and the child device 4B. The master unit A and each slave unit 4B have basically the same configuration as the indoor monitor device 4 shown in FIG. 3, and an emergency signal transfer unit 49 for bidirectionally communicating with the master unit 4A via wired or wireless communication. Is different in that it has

  The stress cause estimation unit 41 of the main unit 4A is connected to a plurality of stress sensors 60 provided in handrails 51 and rain gutters 52 provided in common parts of the apartment house such as an entrance hall, a staircase elevator hall, and a corridor. Yes. Generally, in apartments, the verandas and balconies of individual dwelling units are also shared parts. It is assumed that the plurality of stress sensors 60 provided on the handrail 51 and the rain gutter 52 are connected to the stress cause estimation unit 41 of the slave unit 4B.

  The lighting control unit 42B of the master unit 4A is connected to a plurality of lighting devices 20 installed in a common part of the apartment house, and controls lighting and extinguishing of the plurality of lighting devices 20 individually or simultaneously. When the door of the apartment house is the automatic opening / closing door 61, the door opening / closing control unit 53 controls the opening / closing of the automatic opening / closing door 61. When the electric lock 82 is installed on the door 62 of the apartment house, the electric lock control unit 45 controls the unlocking and locking of the electric lock 82. Further, when the elevator 55 is installed in the apartment house, the elevator control unit 54 is connected to an elevator control unit (not shown), and controls the raising / lowering of the elevator board 56 and the opening / closing of the door 57. In FIG. 4, it is assumed that the door 61 of the front entrance is an automatic opening / closing door, and the electric lock 82 is provided on the door 62 of the emergency exit or the entrance.

  When the cause-of-stress estimation unit 41 of the base unit 4A determines that a suspicious person has entered from a shared part based on the stress value output from any of the stress sensors 60, an alarm sound is transmitted via the load control unit 42. And the lighting device 20 in the common part are turned on, and an emergency signal is output to the emergency signal transfer unit 49 of each slave unit 4B via the emergency signal transfer unit 49. In the handset 4B provided in each dwelling unit, when the emergency signal transmitted from the base unit 4A is received via the emergency signal transfer unit 49, an alarm sound is output from the speaker 47 via the load control unit 42. The lighting devices 21... Set in advance are turned on. Thereby, it is possible to notify the resident of each dwelling unit that a suspicious person has entered.

  On the other hand, when the stress cause estimation unit 41 of the child device 4B determines that the suspicious person has entered from the veranda or balcony of the individual dwelling unit based on the stress value output from any of the stress sensors 60, the load control unit The alarm sound is output via 42, the lighting device 21 of the dwelling unit is turned on, and the emergency signal is output to the emergency signal transfer unit 49 of the master unit 4A via the emergency signal transfer unit 49. To do. When receiving the emergency signal transmitted from one of the slave units 4B via the emergency signal transfer unit 49, the master unit 4A further transfers the emergency signal of all the other slave units 4B via the emergency signal transfer unit 49. The emergency signal is transferred to the unit 49, an alarm sound is output via the load control unit 42, and the lighting device 20 in the common part is turned on. Further, if necessary, the electric lock 82 and the automatic opening / closing door 61 are locked to the emergency door or the door 62 of the emergency door or the elevator 55 via the electric lock control unit 45, the door opening / closing control unit 53, and the elevator control unit 54. May stop functioning.

  In the above embodiment, the stress sensor is configured using a strain gauge affixed to the inner peripheral surface of a structure such as a handrail 51 or a rain gutter 52 that is visually recognized as the exterior of a building. However, as a reference example, a sound sensor can be used instead of the stress sensor. That is, if a force is applied to the cylindrical hollow body and distortion occurs, some sound is generated regardless of whether or not it can be heard by a person. Therefore, the intrusion of a suspicious person can be detected by detecting the sound with a sound sensor such as a microphone. The intrusion of a suspicious person can also be detected by laying a special mat or granular material such as gravel on the floor of a veranda or balcony and detecting the sound.

1 House 3 Outdoor unit of TV door phone device (child unit)
4 Indoor monitor device of TV door phone device (master unit)
4A Master unit of load control system 4B Slave unit of load control system (indoor monitor device)
20-28 Lighting device 31-37 Load control device (wall switch)
DESCRIPTION OF SYMBOLS 41 Stress cause estimation part 42 Load control part 42A Alarm control part 42B Illumination control part 43 Memory | storage part 44 Timing part 45 Electric lock control part 46 Image information output part 60 Stress sensor 47 Speaker 48 Display apparatus 61 Automatic opening / closing door 62 (Emergency exit or common use Mouth door 81, 82 Electric lock

Claims (4)

A plurality of stress sensors using strain gauges affixed to the inner peripheral surface of a structure composed of hollow members visually recognized as the exterior of the building;
A stress cause estimator that detects a cause of the stress applied to the structure by comparing the stress generated in the structure with a predetermined threshold value detected by any of the plurality of stress sensors;
A load control system including a load control unit that activates a predetermined load set in advance when a cause estimated by the stress cause estimation unit is an intrusion of a suspicious person.   The load control system according to claim 1, wherein the stress cause estimation unit estimates a place where the stress is applied to the structure by comparing the stresses detected by the plurality of stress sensors.   The load control system according to claim 1, wherein the structure is a rain gutter or a handrail.   The load control system according to any one of claims 1 to 3, wherein the predetermined load is an alarm device or one or a plurality of lighting devices.

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