JPH07152975A - Crime preventive device - Google Patents

Abstract

PURPOSE:To provide the crime preventive device which can automatically set guard when the user goes out. CONSTITUTION:This device consists of an electric lock 2 which is provided to an entrance door 1 and locked or unlocked with an electric signal, a human body detecting means 4 which consists of human body sensors provided inside and outside the entrance door 1, and a crime preventive receiver 5 which sets or releases the guard by inputting the AND signal (AND circuit) between the locking or unlocking signal from the electric lock 2 and the output signal of the human body detecting means 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crime prevention device.

[0002]

2. Description of the Related Art Conventionally, as a crime prevention device for a house or an office, there is a device for issuing an alarm or turning on an indicator light by opening a door or window with a warning set. In order to set such a crime prevention device as a warning, it is necessary to set a crime prevention receiver provided in the room, exit the final entrance, lock the place, and set a crime prevention key switch provided beside it.

[0003]

In the above-mentioned conventional security device, the security set is troublesome, and it is often not used when going out for a short time in daily life, so that the security device is not fully utilized. There is.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a security device capable of automatically setting a warning set.

[0005]

In order to solve the above problems, a security device according to claim 1 is provided on the outside of an entrance door having an electric lock and an electric lock that can be locked or unlocked by an electric signal. The human body detecting means and the security receiver for setting or releasing the warning by inputting a logical product of a lock or unlock signal from the electric lock and an output signal from the human body detecting means.

The security device according to a second aspect is the security device according to the first aspect, wherein the human body detecting means is formed by a non-contact human body detecting sensor.

[0007]

According to the structure of claim 1, even if the electric lock is locked or unlocked from the indoor side of the entrance door, the security receiver is not set or released, but the electric lock is set from the outside of the entrance door. The security receiver can be set as a warning by locking, or the security receiver can be released by unlocking the electric lock from the outside of the front door.

According to the structure of claim 2, in addition to the effect of claim 1, the human body detection sensor
It is possible to detect whether or not there is a person outside the entrance door without contact.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic wiring diagram of a crime prevention device used in a house or office, and FIG. 2 is an internal circuit diagram of a crime prevention receiver described later.

Reference numeral 1 is an entrance door, which is generally used as a final entrance / exit of a house or office. 2 is an electric lock, which is locked and unlocked by receiving an electric signal. The lock and unlock switch is an electric lock operation unit in the room 3
Although not shown, it is provided outside the room next to the entrance door 1. The outdoor switch generally unlocks by entering a personal identification number.

Reference numeral 4 denotes a human body detection sensor as human body detection means, which is provided outside the room near the entrance door 1. The human body detection sensor 4 may be of a hot wire type or an infrared type that detects the temperature of the human body, but the structure is not particularly limited, and the important point is whether or not there is a person in front of the front door 1. Anything that can be detected may be used.

Reference numeral 5 denotes a crime prevention receiver, which detects signals from the electric lock 2 and the human body detecting sensor 4 to perform a warning set and a warning cancellation of the crime prevention device. FIG. 2 shows the details, and an AND circuit of a lock signal or an unlock signal from the electric lock 2 and a detection signal from the human body detection sensor 4
6a and 6b are logically ANDed according to the alert set,
Or cancel the alert. The warning set monitors signals from a security sensor attached to a door, a window or the like through the sensor input 7, and if an abnormality occurs, outputs an alarm from the output circuit 8 or lights an indicator light.

Next, the operation will be described. When going out, if there is a person outside the front door 1 and the electric lock 2 is locked, the AND circuit 6a generates a warning set by the detection signal from the human body detection sensor 4 and the lock signal from the electric lock 2. To be done. When a warning set is made, an alarm will be issued if an abnormality is detected by a security sensor attached to a door or window. On the other hand, when you go home and unlock the electric lock 2 with a person outside the front door 1, the human sensor 4
By the detection signal from and the unlocking signal from the electric lock 2.
The D circuit 6b releases the alert.

If a guard set is desired indoors, the switch provided on the security receiver 5 can be operated without the need to lock it from the outside.

The electric lock is not limited to one that is locked and unlocked electrically, but may be any one that, even when locked and unlocked by a key, its operation signal is transmitted to the security receiver.

Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment is different from the first embodiment in the human body detecting means, and this point will be described.

Reference numeral 9 is a cylinder lock, which is attached to the front door 1. A micro switch 10 is provided inside the cylinder lock 9, which is detected by inserting a key 11 from outside the room.

With such a structure, the entrance door
When locking and unlocking the cylinder lock 9 from the outside of 1,
The presence of a person outside the front door 1 is detected by the micro switch 10. Also, by electrically transmitting the lock / unlock operation of the cylinder lock to the crime prevention receiver 5,
The same operation as in the first embodiment occurs.

[0019]

According to the security device of the first aspect, even if the electric lock is locked or unlocked from the inside of the entrance door, the security receiver is not set or released but the electricity is supplied from the outside of the entrance door. If you lock the security receiver set to the security set, or you can unlock the security receiver by unlocking the electric lock from the outside of the entrance door, the security set can be automatically set when you go out, Security performance is improved.

In addition to the effect of claim 1, the crime prevention device according to claim 2 can detect whether or not there is a person outside the entrance door by a human body detection sensor without contact. The set of guards is even simpler since it requires no human action for

[Brief description of drawings]

FIG. 1 is a schematic wiring diagram of a security device showing a first embodiment of the present invention.

FIG. 2 is an internal circuit diagram of the security receiver.

FIG. 3 is a schematic view of a human body detecting means showing a second embodiment of the present invention.

[Explanation of symbols]

 1 Entrance door 2 Electric lock 3 Electric lock operation unit 4 Human body detection sensor (human body detection means) 5 Security receiver 6a, 6b AND circuit 7 Sensor input 8 Output circuit 9 Cylinder lock 10 Micro switch 11 Key

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hideaki Okada 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (2)

[Claims] 1. An electric lock capable of being locked or unlocked by an electric signal, a human body detecting means provided outside the entrance door having the electric lock, and a locking or unlocking signal from the electric lock and a human body detecting means. A security receiver, comprising: a security receiver that sets or cancels a warning by inputting a logical product with an output signal. 2. The crime prevention device according to claim 1, wherein the human body detecting means is formed by a non-contact human body detecting sensor.