JPH0533439B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a security function confirmation device,
In particular, it relates to a security function confirmation device that allows you to check the on/off state of the sensor switch of a security sensor from a distance when you go out.

[Technical background of the invention and its problems] Conventionally, as shown in _FIG.
A security device is known in which an external device N including a security sensor S and an alarm display section _N1 is connected to a main device M including a test switch SW via a test switch SW. This security device is configured so that when the security sensor S detects an abnormality, an alarm sound is emitted from the alarm display section M ₁ of the main device M and the alarm display section N ₁ of the external equipment N, and a warning light is turned on. has been done. On the other hand, you can check whether the security sensor S is monitoring properly by operating the test switch SW and checking the alarm sound and warning light, but the problem is that you cannot easily check it when you are in a hurry, such as when going out. It was hot.

[Object of the Invention] The present invention has been made in order to solve the above-mentioned difficulties, and an object thereof is to provide a security function confirmation device that can confirm the on/off state of a sensor switch of a security sensor from a distance. That is.

[Summary of the Invention] In order to achieve the above object, the security function confirmation device of the present invention includes a security sensor including a sensor switch, a main device to which the sensor is connected, and a a checker including a confirmation switch corresponding to the sensor and installed at a location away from the sensor; the main device includes a first switch that is turned on by the sensor switch when the sensor is in one of normal and abnormal states; a checking transistor, and a second switching transistor that is turned on by the sensor switch when the sensor is in the other state of normal or abnormal; and a confirmation light that is energized from the second switching transistor to indicate the one state, and a confirmation light that is energized from the second switching transistor to indicate the other state.

[Embodiments of the Invention] Preferred embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the security function confirmation device of the present invention has a security sensor 1 including a required number, for example, three door lock sensor switches 1a, one gas stove sensor switch 1b, and a line.
a main device 2 to which the sensor 1 is connected via L ₁ ;
Confirmation switches 4a-5a, 4b-5b, 4c-corresponding to the sensor 1 connected to the main device 2 via the line _L2 and installed at a distance from the sensor
Checkers 3a, 3b, and 3c including checkers 5c are provided.

In the illustrated example, the checker 3a is installed independently at the entrance, the checker 3b is built into a doorway, and the checker 3c is built into an intercom with a security function.
The entrance slave unit 6 and the back door slave unit of the checker 3a are connected to the intercom of the checker 3c via lines L ₃ and L ₄ so that they can call and talk to each other.

Sensor 1, main device 2, checker 3a, 3
The circuit configurations of b and 3c will be explained. Note that an example of the checker 3a will be explained. In FIG. 3, the main device 2 includes first switching transistors Tr ₁₁ and Tr ₁₂ , which are turned on by the sensor switches 1a and 1b, respectively, when the sensor 1 is in a normal state, and first switching transistors Tr 11 and Tr 12, which are turned on by the sensor switches 1a and 1b, respectively, when the sensor 1 is in an abnormal state. Second switching transistors turned on by 1a and 1b, respectively
It has Tr ₂₁ and Tr ₂₂ . The AC power source is stepped down by a transformer T, rectified by a diode D, smoothed by a capacitor C to form a DC power source, and its (+)
side and (-) side are transistors Tr ₁₁ ,
Connected to the emitters of Tr ₁₂ , Tr ₂₁ , and Tr ₂₂ .
One end of the sensor switch 1a is connected to a transistor from resistors R ₁ and R ₂ via diodes D ₁ and D ₂ , respectively.
It is connected to the bases of Tr ₁₁ and Tr ₂₁ , and the other end is connected to the collector of transistor Tr ₂₁ . Diode _D1 is connected to the emitter of transistor _Tr11 via resistor _R3 . Transistor Tr ₁₁ ,
A resistor R ₄ , a capacitor C ₁ , a resistor R ₅ , and a capacitor C ₂ are connected between the base and emitter of Tr ₂₁ , respectively. The connection between the sensor switch 1b and the switching transistors Tr ₁₂ and Tr ₂₂ is also the same as described above, so a description thereof will be omitted.

The checker 3a checks the confirmation switches 4a-5a from the first switching transistors _Tr11 and _Tr12 .
A confirmation light 7 indicating the normal state is energized through the
a and the second switching transistor Tr ₂₁ ,
It is provided with a confirmation light 7b which is energized from the Tr ₂₂ via confirmation switches 4a-5a and indicates the abnormal state. The confirmation lights 7a and 7b emit green and red when energized, respectively, and are connected in series in opposite directions, and diodes 8a and 8b are connected in parallel in opposite directions, respectively. Confirmation switch 4a-5a
is connected to the ground G of the DC power source from a light emitting diode 9a and a diode 9c which are connected in parallel in opposite directions via confirmation lights 7a and 7b.

A photodiode 9b that receives light from a light emitting diode 9a holds a relay Ry together with a transistor Tr, and Rc is a relay contact of the relay Ry.

Checkers 3a, 3b configured in this way,
Specific examples of the external appearance of 3c are shown in FIGS. 2a, b, and c. In FIG. 2a, the checker 3a is of a type that is installed independently at the entrance. In FIG. 2b, the checker 3b shows a type that is incorporated into a hand-held slave machine. In Figure 2c, checker 3c
is incorporated into an intercom with security function. 10 is a confirmation sound emitting speaker grill.

In the security function confirmation device configured in this way, when the door lock sensor switch 1a of the sensor 1 is in a normal state and closed (that is, when the door is properly locked), the DC power supply ( +) side → first switching transistor
Emitter and base of Tr ₁₁ → resistor R ₁ → diode
A loop is formed from _D1 to the door lock sensor switch 1a to the (-) side of the DC power supply, and the first switching transistor _Tr11 is turned on. In this state, a checkerboard 3a installed independently at the entrance
When the confirmation switch 4a is closed, the emitter and collector of the first switching transistor _Tr11 →
Line L ₂ → Confirmation switch 4a → Lead wire 11 →
Confirmation switch 5a → diode 8b → confirmation light 7a
→ Diode 9c → Loop of ground G of DC power supply is formed. When the energized confirmation light 7a turns green, the door lock sensor switch 1 of the sensor 1 is activated.
You can confirm that the door is operating normally from the entrance far away, and know that the door is properly locked.

On the other hand, the door lock sensor switch 1a of sensor 1
is in an abnormal state and is open (that is, when the door is not properly locked), the (-) side of the DC power supply → second switching transistor Tr ₂₁
emitter, base → resistor R ₂ → diode D ₂ ,
D ₁ → Resistor R ₃ → A loop is formed leading to the (+) side of the DC power supply, and the second switching transistor
Tr ₂₁ is on. In this state, when the confirmation switch 4a of the checker 3a is closed, the (-) side of the DC power supply → the second switching transistor Tr ₂₁
emitter, collector → line L ₂ → confirmation switch 4a → lead wire 11 → confirmation switch 5a → confirmation light 7b → diode 8a → light emitting diode 9a →
A loop of ground G of the DC power supply is formed. By the red lighting of the energized confirmation light 7b, it can be confirmed from the entrance far away that the door lock sensor switch 1a is not operating normally, and the user knows that the door is not properly locked. In this case, a photodiode 9 that receives light from the light emitting diode 9a
b holds the relay Ry together with the transistor Tr,
By closing relay Ry's transfer contact Rc, the alarm circuit (not shown) of the intercom with security function is activated via line _L5 , and an alarm sounds, for example, from the speaker of the door slave unit 6 or the rear door slave unit. do.

The on/off state of the gas stove sensor switch 1b of the security sensor 1 can also be confirmed using the confirmation switch 5a in the same manner as described above.

However, if the confirmation switch 4a of the door lock sensor switch 1a and the confirmation switch 5a of the gas stove sensor switch 1b are operated at the same time, the lead wire 11 will be disconnected, so the latter takes priority.

In addition, by using the current flowing through the confirmation lights 7a and 7b, a confirmation sound corresponding to each is emitted, for example, by the checker 3.
The sound may start from a.

In addition, in the above example, the first switching transistor is turned on and the second switching transistor is turned off by the sensor switch when the sensor is in a normal state, but when the sensor switch is in an abnormal state, the first switching transistor is turned on and the second switching transistor is turned off. The first switching transistor may be turned on, and the second switching transistor may be turned off.

Furthermore, although the security sensor has been described as including a door lock sensor switch and a gas stove sensor switch, other security sensor switches may also be incorporated.

[Effects of the Invention] As is clear from the above embodiments, the security function confirmation device of the present invention has a security sensor including a sensor switch, a main device to which the sensor is connected, and a main device connected to the main device. and a checker including a confirmation switch installed at a location away from the sensor corresponding to the sensor, and the main device includes a first checker that is turned on by the sensor switch when the sensor is in one of the normal and abnormal states. and a second switching transistor that is turned on by the sensor switch when the sensor is in the other state of normal or abnormal, and the checker controls the check switch from the first switching transistor. A security sensor is provided with a confirmation light that indicates the one state, which is energized through the second switching transistor, and a confirmation light that indicates the other state, which is energized from the second switching transistor through the confirmation switch. You can check the on/off status of the sensor switch from a distance.

[Brief explanation of drawings]

Fig. 1 is a system block diagram of the security function checking device according to the present invention, Fig. 2 a, b, and c are external views of the checker in the security function checking device, and Fig. 3 is a sensor and main device in the security function checking device. , checker schematic,
FIG. 4 is a system block diagram of a conventional security function confirmation device. 1a, 1b...Sensor switch, 1...Security sensor, 2...Main device, 4a-5a,
4b-5b, 4c-5c...Confirmation switch, 3
a, 3b, 3c...Chetzker, Tr ₁₁ , Tr ₁₂ ...
...first switching transistor, Tr ₂₁ ,
Tr ₂₂ ...Second switching transistor, 7
a... Confirmation light indicating one state, 7b... Confirmation light indicating the other state.

Claims (1)

[Claims] 1. A security sensor including a sensor switch, a main device to which the sensor is connected, and a checker including a confirmation switch connected to the main device, corresponding to the sensor, and located away from the sensor; The main device includes a first switching transistor that is turned on by the sensor switch when the sensor is in one of normal and abnormal states, and a first switching transistor that is turned on by the sensor switch when the sensor is in the other state of normal and abnormal. a second switching transistor;
1. A security function confirmation device comprising: a confirmation light that is energized from a switching transistor through the confirmation switch to indicate the other state.