JP3190086U - Alarm device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an alarm device which can confirm the safety of a resident by a simple mechanism and can be easily installed. An alarm device 1 includes, for example, a main body 10 installed on a front door 2 and a magnetic body 20 installed on a frame 3 of the front door 2. The main body 10 includes a casing, a battery lamp and a notification lamp that can be seen from the outside of the casing, and a power switch. Further, in the casing, there are a power source for a dry battery or the like that is turned on / off by a power switch, a magnetic body detection unit that detects the magnetic body 20, and a control unit that determines whether or not the entrance door 2 is opened / closed based on the detection means. , Includes reporting means activated by the control unit. The battery lamp emits light when power is supplied from the power source, and the notification lamp emits light when the notification means is activated. [Selection diagram] Fig. 1

Description

  The present invention relates to an alarm device that can be attached to a residence, and more particularly, to an alarm device that detects that a resident has not passed a certain place for a certain period of time and issues an alarm.

  Conventionally, a device for determining the safety of a resident is known. The safety of residents is determined by using a human sensor that detects the temperature of the residents installed in the residence, a light sensor that detects changes in the brightness of the living space, or a temperature sensor that detects changes in room temperature. It is possible to notify the abnormality at an early stage by making a determination and notifying the outside when it is determined that there is an abnormality in the safety of the resident.

Utility Model Registration No. 3157373 JP 2002-42281 A

  However, according to Patent Document 1 and Patent Document 2, a plurality of sensors are essential, and the control mechanism and determination method become complicated. Moreover, since the accuracy of the safety determination differs depending on the installation location of the sensor, there is a problem that a person other than the expert cannot easily attach it.

  An object of the present invention is to provide an alarm device that can confirm the safety of a resident by a simple mechanism and can be easily installed.

  The present invention is an alarm device including a main body and a magnetic body disposed opposite to the main body, the main body including a magnetic body detection unit that detects the magnetic body, and a door based on the magnetic body detection unit. Including a control unit that determines whether or not to open / close, a reporting unit that is activated by the control unit, and a power source, wherein one of the magnetic body detection unit and the magnetic body is provided on a door, and the other is The magnetic body detection unit can detect the magnetic force of the magnetic body when the magnetic body detection unit and the magnetic body face each other at a closed position of the door. When the magnetic body detection unit continues to detect the magnetic force of the magnetic body for a certain period, it is determined that the door has not been opened and closed, and the reporting means is activated.

    The main body may include a plurality of the magnetic body detection units, and the magnetic body detection units may be provided at different positions.

  According to the alarm device of the present invention, when a magnetic body and a magnetic body detection unit provided opposite to the magnetic body are used to determine whether the door is opened or closed, and when it is determined that the door has not been opened or closed for a certain period of time. Since the reporting means is activated, a plurality of types of sensors are not required and relatively simple control is possible. Moreover, since it is only necessary to install the main body on either the door or the frame and to install the magnetic body on the other, the installation is also easy.

The figure which shows the outline | summary of a use condition when the main body of an alarm device is installed in a door and a magnetic body is installed in a frame. The perspective view of the alarm device in a 1st embodiment. The block diagram which shows the hardware constitutions of the main body of an alarm device. The flowchart which shows the flow of the judgment process by the control part of the main body of an alarm device. The perspective view of the alarm device in a 2nd embodiment.

(First embodiment)
1 to 4 show an example of the first embodiment of the present invention.
1 and 2, the alarm device 1 includes, for example, a main body 10 installed on the entrance door 2 and a magnetic body 20 installed on the frame 3 of the entrance door 2. The magnetic body 20 is a permanent magnet, for example. The main body 10 includes a casing 11, a battery lamp 12 and a notification lamp 13 that are visible from the outside of the casing 11, and a power switch 14. Further, in the casing 11, whether or not the entrance door 2 is opened or closed is determined based on a power source such as a dry battery that is turned ON / OFF by the power switch 14, a magnetic body detection unit 32 that detects the magnetic body 20, and detection means. It includes a control unit and reporting means activated by the control unit. The battery lamp 12 emits light when power is supplied from the power source, and the notification lamp 13 emits light when the reporting means is activated.

  In this embodiment, the casing 11 is substantially rectangular and includes both side edges 11A and 11B and front and rear end edges 11C and 11D. The magnetic body detection unit 32 is disposed on either of the side edges 11A and 11B and the front and rear end edges 11C and 11D. In this embodiment, it is provided on the right side edge 11B in FIG. The position of the magnetic body detection unit 32 provided on the surface of the casing 11 is indicated by a triangle so that the location can be easily understood. Further, the magnetic body detection unit 32 and the magnetic body 20 are disposed so as to face each other when the entrance door 2 is closed. Accordingly, the magnetic body detection unit 32 can detect the magnetic force of the magnetic body 20.

  As shown in FIG. 3, a control unit 31, a magnetic body detection unit 32, an external input unit 33, an external output unit 34, a speaker drive unit 35, a speaker 36, an LED drive unit 37, and the like are built in the casing 11 of the main body 10. Has been. The external input unit 33 and the external output unit 34 are not essential.

  The control unit 31 determines whether the entrance door 2 is opened or closed based on the magnetic body detection unit 32, and includes a CPU (Central Processing Unit), an EEPROM (Electrically Erasable Programmable Read Only Memory), and a RAM (Random Access Memory). A microcontroller having a timer and the like. The CPU calls a program stored in the EEPROM on the RAM and executes it, thereby realizing the processing shown in FIG. The EEPROM is a non-volatile memory that can rewrite stored contents, and stores a program for realizing the processing shown in FIG. The RAM is a volatile memory, and temporarily stores a program, data, and the like loaded from the EEPROM, and includes a work memory area used by the CPU to perform various processes. The timer switches the output signal when a preset time elapses after the start signal is input.

  The magnetic body detection unit 32 is an element for detecting the magnetic body 20 and is, for example, a reed switch. The reed switch has two ferromagnetic leads and closes a circuit that communicates with the control unit 31 when a magnetic field is applied from the outside, and opens a circuit that communicates with the control unit 31 when the magnetic field is removed from the outside. Therefore, if the magnetic body 20 exists around the main body 10, the magnetic body detection unit 32 closes the circuit leading to the control unit 31, and if the magnetic body 20 does not exist around the main body 10, the magnetic body detection unit 32 A circuit leading to the control unit 31 is opened.

  The external input unit 33 transmits an external input signal to the control unit 31. The external input signal is, for example, a signal based on the operation of a sensor attached at another location. Sensors that detect the opening and closing of doors in the residence, human sensors that sense the temperature of the residents in the residence, light sensors that sense changes in the brightness of the living space, and changes in room temperature Temperature sensors to be used, infrared sensors installed in toilets, and the like. Further, the external input signal may be a signal based on the operation of a lighting on / off button, a switch button of various electrical appliances, or the like, and is not particularly limited as long as it is a signal that can determine the safety of a resident.

  The external output unit 34 transmits an alarm signal output from the control unit 31 to an external device. The control unit 31 outputs an alarm signal to an external device when the notification unit is activated in the process shown in FIG. Examples of the external device connected to the external output unit 34 include a speaker and an LED. However, the external device is not particularly limited as long as it is a device capable of reporting the safety of a resident.

  The speaker driving unit 35 drives the speaker 36 based on the control signal output from the control unit 31. The speaker 36 functions as a reporting unit that outputs an alarm sound, and is, for example, a piezoelectric speaker. The LED drive unit 37 drives LEDs such as the battery lamp 12 and the notification lamp 13 based on a control signal output from the control unit 31.

  The flowchart of FIG. 4 is a flowchart showing the flow of determination processing by the control unit 31. As shown in FIG. 4, when a user (including a resident) turns on the power switch 14 (step S1), the CPU of the control unit 31 inputs a start signal to the timer (step S2). The preset time set in advance in the timer is, for example, 24 hours, but can be appropriately changed according to the user's wish.

  When the magnetic body 20 is not applied to the magnetic body detection unit 32 and the magnetic body detection unit 32 opens a circuit leading to the control unit 31, the CPU of the control unit 31 causes the magnetic body 20 to be present around the main body 10. No, that is, it is determined that the entrance door 2 has been opened (Yes in step S3), the timer is reset (step S4), and the determination process in step S3 is repeated.

  As a method for realizing the determination process in step S3 and the timer reset process in step S4, the timer reset process in step S4 is executed as a hardware interrupt when the magnetic body detection unit 32 opens a circuit connected to the control unit 31. You may make it. Further, the CPU of the control unit 31 periodically checks a flag indicating whether or not the magnetic body detection unit 32 has opened a circuit connected to the control unit 31 by polling. When the condition is satisfied, the timer reset in step S4 is performed. Processing may be executed.

  On the other hand, when a magnetic field of the magnetic body 20 is applied to the magnetic body detection unit 32 and the magnetic body detection unit 32 closes a circuit leading to the control unit 31, the CPU of the control unit 31 causes the magnetic body 20 to It is determined that it exists in the vicinity, that is, the front door 2 is not open (No in step S3), and the process proceeds to step S5.

  In step S5, the CPU of the control unit 31 checks whether or not the timer has passed the set time (step S5). If the set time has passed (Yes in step S5), the CPU of the control unit 31 determines whether the set time has passed. Then, the control signal is output, and the speaker driving unit 35 drives the speaker 36 (step S6). In this case, the CPU of the control unit 31 also outputs a control signal to the LED drive unit 37, and the LED drive unit 37 drives the LED of the notification lamp 13.

  On the other hand, when the set time has not elapsed (No in step S5), the CPU of the control unit 31 repeats the determination process in step S3. In this case, the CPU of the control unit 31 does not reset the timer.

  As a method for realizing the determination process in step S5 and the drive process in step S6, the drive process in step S6 may be executed as a hardware interrupt when the timer has passed a set time. Further, the CPU of the control unit 31 periodically checks a flag indicating whether or not the timer has passed the set time by polling, and executes the driving process of step S6 when the condition is satisfied. good.

  As described above, the control unit 31 determines that the entrance door 2 has not been opened and closed when the magnetic body detection unit 32 continues to detect the magnetic body 20 for a certain period of time, and activates the speaker 36 that is a reporting unit, And the report lamp 13 lights up. As a result, the alarm device 1 can report that the entrance door 2 has not been opened or closed by a resident or the like for a certain period of time.

  In this embodiment, the alarm device 1 is attached to the outside of the entrance door 2. Therefore, when the speaker 36 of the alarm device 1 is driven and the notification lamp 13 is driven, the speaker sound and the notification lamp are emitted outside the residence. As a result, it is possible to notify the nearby residents of the abnormality. For example, when a resident cannot move due to a change in physical condition, the resident can be prevented from being left in the room, and a situation where discovery is delayed as a result of so-called lonely death can be prevented. If there is no change in the resident, the speaker sound can be stopped if the power switch 14 is turned OFF, so that the erroneous notification can be quickly eliminated. Further, it is desirable that the power switch 14 be turned off when the resident is out and turned on when the occupant returns home.

  The installation of the alarm device 1 is not limited to the entrance door 2. For example, it can be attached to a door in a living space such as a toilet door. That is, if the magnetic body 20 and the magnetic body detection unit 32 can be disposed so as to face each other, the installation position can be determined according to the lifestyle of the resident. Moreover, since it arrange | positions so that the magnetic body 20 and the magnetic body detection part 32 may oppose when a door is closed, the installation is easy. Furthermore, the resident can inform the surroundings of his / her safety only by turning ON / OFF the power switch 14 and is excellent in operability.

(Second Embodiment)
FIG. 5 is a diagram illustrating the main body 10 of the alarm device 1 according to the second embodiment. In this embodiment, a plurality of magnetic body detection units 32 are provided at different positions. More specifically, the magnetic body detectors 32 are provided on both side edges 11A and 11B and the front end edge 11C of the casing 11, respectively. For example, when the left side of the entrance door 2 is open, the main body 10 is disposed on the left side edge 11A of the entrance door 2 and when the right side is open, the right side is provided. It can arrange | position to the edge 11B and can arrange | position the magnetic body 20 in the position facing these. Moreover, when it cannot attach to either side edge 11A, 11B, the main body 10 can be arrange | positioned to the front-end edge 11C. That is, according to such an alarm device 1, it can be easily attached to any door.

  When a plurality of magnetic body detection units 32 are provided, the control unit 31 determines that the magnetic body 20 exists around the main body 10 if any one of the plurality of magnetic body detection units 32 is closed. If all of the plurality of magnetic body detection units 32 open the circuit, it is determined that the magnetic body 20 does not exist around the main body 10.

  In addition to the materials described in the present specification, various known materials that are usually used in this type of field can be used for each component constituting the alarm device 1 without limitation.

1 Alarm 2 Entrance door (door)
3 Frame body 10 Main body 11 Casing 20 Magnetic body 31 Control section 32 Magnetic body detection section 36 Speaker (reporting means)

Claims (2)

An alarm device comprising a main body and a magnetic body disposed to face the main body,
The main body includes a magnetic body detection unit that detects the magnetic body, a control unit that determines whether the door is opened or closed based on the magnetic body detection unit, a notification unit that is activated by the control unit, and a power source.
Either one of the magnetic body detection unit and the magnetic body is provided on a door, and the other is provided on a door frame, and the magnetic body detection unit and the magnetic body face each other at a closed position of the door. The magnetic body detection unit can detect the magnetic force of the magnetic body,
The said control part judges that there was no opening and closing of the said door, when the said magnetic body detection part continues detecting the magnetic force of the said magnetic body for a fixed period, The alarm device characterized by the above-mentioned. The main body includes a plurality of the magnetic body detection units,
The alarm device according to claim 1, wherein the magnetic body detection unit is provided at a different position.

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