JPS62126494A - Porch alarm - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an entrance alarm that automatically detects the opening and closing of an entrance door, etc., and makes various announcements, alarms, etc.

<Prior art> Conventional entrance alarms consist of a sensor that detects the opening and closing of the entrance door, and an alarm that alerts visitors when the sensor detects them. This system is designed to notify household members in the room.

With the entrance alarm configured as above, the sensor detects the opening/closing of the entrance door and the alarm notifies the household members indoors of a visitor, so the entrance door is used when household members exit from the room. The opening/closing of the door also alerts the presence of a visitor, which has the disadvantage that it is not possible to reliably notify the household members of the visitor only.

Purpose of the present invention: An object of the present invention is to provide a doorway alarm that eliminates the above-mentioned drawbacks. Embodiment: An embodiment of the doorway alarm of the present invention will be described below with reference to the drawings. .

The entrance alarm of the present invention is constructed as shown in Figs. 1 to 4, and in Figs. 1 to 3, 1 is the entrance door, 2 is the entrance wall, and 3 is the entrance alarm of the invention. Vessel body, 4
5 is an operating switch; 6 is a door sensor for detecting opening/closing of the entrance door 1, which is formed by a magnet 7 attached to the entrance door 1 and a reed switch 8 provided on the entrance alarm body 3. 9 is a pyroelectric human body sensor that, as is well known, detects infrared rays of a specific wavelength emitted by the human body (pyroelectric).
It is widely used as a security sensor to detect the presence or absence of a human body, and a detection zone is set to detect when a human body enters the entrance.

10 is a pull composition stop switch.

The entrance alarm body 3 is attached to the entrance wall 2, and the magnet 7 is attached to the entrance door 1 with screws or adhesive.

The power source for the entrance alarm of the present invention may be either AC or DC, and a DC (battery) power source is preferred from the viewpoint of ease of installation.

FIG. 4 is a block diagram showing the circuit configuration of the entrance alarm of the present invention, in which 6 is a door sensor that detects the opening and closing of the entrance door, 9 is a pyroelectric human body sensor, and 12 is the door sensor 6.
and a human body sensor 9; a first-come-first-served determination circuit that automatically determines whether a human body is moving from indoors to outdoors or from outdoors to indoors by determining the first-come-first-served state of the operation of two sensors 6.9 and human body sensor 9;
3 is processed by voice synthesis based on the judgment of the first-come-first-served judgment circuit 12.
5 is a sound/alarm generating circuit 13 which generates an announcement sound such as "Let's go!", "Welcome home", or an alarm sound such as "ping-pong" to function as an automatic entrance chime; go out (alert)
15 is an amplifier that amplifies the audio and alarm sound of the audio/alarm generation circuit 13; 16 is an amplifier that amplifies the audio and alarm sound amplified by the amplifier; This is a speaker that amplifies the sound.

The audio/warning generating circuit 13 is configured such that the generation of a small warning sound can be arbitrarily stopped by operating a stop switch 10 of a pull type. “Next, the operation of the entrance alarm of the present invention constructed as described above will be explained.

First, when the operation switch 5 is set to the going out (alert) mode and the at-home mode, if the human body sensor 9 detects it first and then the door sensor 6 detects it, the first-come-first-served judgment circuit 1
2, it is assumed that a person moves from indoors to outdoors, i.e.,
Sound/alarm generation circuit that assumes that a household member has gone out 13. Amplifier 1
5. By the function of the speaker 16, a voice is synthesized and announced as "welcome". Next, if the operation switch 5 is in the home mode and the door sensor 6 detects it first and then the human body sensor 9 detects it, the first-come-first-served judgment circuit 12 determines that the person has moved from outdoors to indoors, that is, it is assumed that a family member has returned home. /Alarm generating circuit 13° amplifier 15. Speaker 1
6 synthesizes and announces ``Welcome back.'' Further, if the operation switch 5 is set to the off mode, there may be no need to notify anything, but in the present invention, an electronic sound such as "pin-boom" is issued to function as an automatic entrance chime.

Next, in the going out (warning) mode, if the door sensor 6 detects the detection first and then the human body sensor 9 detects the detection, in this case, there is a family member returning home and trespassing, and therefore, as shown in the table below, the present invention For 10 seconds, a small alarm sound, for example, "beep" sounds, and in this state, the householder operates the stop switch 10 on the pull cord to stop the alarm sound, but in the case of an illegal trespasser, the operation is unknown. After 10 seconds, a loud alarm will sound, alerting you to an illegal trespasser.

Effects of operating and using the entrance alarm as described above: Since the entrance alarm of the present invention has the above-described configuration, it is possible to reliably notify only the guests indoors, In addition, it is possible to reliably notify people of trespassers, and it is also possible to notify by voice when someone is leaving, returning home, or having a visitor, and it is also easy to install.

[Brief explanation of drawings]

FIG. 1 is an external view showing an embodiment of the entrance alarm of the present invention;
Fig. 2 is a perspective view showing an installed state of an embodiment of the entrance alarm of the present invention, Fig. 3 is a sectional view of the main part of Fig. 2, and Fig. 4 is a perspective view of an embodiment of the entrance alarm of the invention. FIG. 2 is a block diagram showing a circuit configuration. In the drawings, 6 is a door sensor, 9 is a human body sensor, 12 is a first-come-first-served discrimination circuit, 13 is an audio/alarm generation circuit, 15 is an amplifier, and 16 is a speaker. Figure 2

Claims (1)

[Claims] 1. Automatically determines whether a human body is moving from indoors to outdoors or from outdoors to indoors by determining two sensors with different notification methods, such as a door sensor and a human body sensor, and the first arrival of the operation of the two sensors. An entrance alarm comprising: a determining means; and a notifying means for generating various announcements, alarms, etc. according to the determination made by the determining means.