Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1994-11-02
1997-06-17
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340565, 340561, 340588, 340331, 379 38, 379 40, G08B 2900
Patent
active
056401418
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a surveillance and alarm device for room spaces, comprising an infrared radar for controlling the lights as well as a fire alarm and a burglar alarm.
An object of the invention is to provide a line of simple safety equipment for homes and offices that can be readily adopted and connected to existing electric and telephone equipment.
This object is achieved according to the invention on the basis of the characterizing features set forth in the appended claim 1.
One exemplary embodiment of the invention will now be described in more detail with reference made to the accompanying drawing, in which
FIG. 1 is a schematic view showing the wiring of a device of the invention to electric and telephone equipment and
FIG. 2 shows a block diagram for the components included in a basic alarm 2 .
The device comprises a basic alarm 2 to be connected in series with a ceiling light fixture 1 in the room to be placed under surveillance, said basic alarm including a fire detector 11 and a burglar-alarm infrared radar 8 and also a light controller 12 integrated in a single unit. The basic alarm 2 is provided with a microprocessor 9, which is adapted to control the actions of said device either on the basis of a command issued by a light switch 3 for lamp 1 or a remote controller 7 or on the basis of a command issued by a key switch 4. In its basic embodiment, the actions of alarm 2 are controlled by means of light switch 3. The control is effected by means of successive shorter or longer switch-on periods, issued by light switch 3 and set by a user.
One or a plurality of basic alarms 2 can also be controlled by means of a basic shunt switch, which is a key switch 4. The key switch 4 is connected either to light switch 3 or to a supply line for an array of lights. The key switch 4 is used for cutting away one half-wave whenever the alarm is active.
Thus, the basic alarm 2 produces an alarm both by sounding a siren 10 and by flashing the lights of lamp 1. Especially in the dark, such alarm is easily detectable from outside, even from a fair distance away. The basic alarm 2 includes also an automatically rechargeable backup voltage source 13 and, thus, the replacement of batteries is avoided. When a light controller 12 included in basic alarm 2 is in activated state, it switches on the light in a normal manner when somebody enters the room under surveillance.
As an accessory, the device includes a robot alarm 5 to be connected with a telephone line by means of a tap socket 6 and including no keyboard for identifying the alarms by means of sequencing the siren sound of basic alarm 2. Hence, the robot alarm 5 does not require any input or output delays. The programming of robot 5 can be effected by means of a normal telephone and such robot can be connected as a separate unit without acutal installation or fixing of sensors. The robot alarm 5 includes a microprocessor for analyzing an alarm signal and calling the emergency numbers. Thus, this microprocessor is set in various operational states through the intermediary of telephone. Furthermore, in addition to or instead of a light switch, it is also possible to employ a wireless remote controller 7 for the alarm control.
The invention is by no means limited to the above exemplary embodiment but there are several alternatives for a skilled person to utilize the following and most important characteristics of the invention: for lights as a sequenced sound or a radio-frequency code
For example, said microprocessor 9 can be replaced with other intelligent circuit designs possessing a sufficient data processing capability for a sufficiently reliable analysis of the messages received from sensors 8 and 11 and for controlling said signalling devices 10 and 12 on the basis of such analysis.
1. A surveillance device adapted for use with a primary light fixture and a light switch in a room, comprising: the light fixture, light switch, fire detection sensor and infrared radiation detector, and the control circuit being adapted to control the surveillance dev
REFERENCES:
patent: 4308911 (1982-01-01), Mandl
patent: 4567557 (1986-01-01), Burns
patent: 4694281 (1987-09-01), McDermott et al.
patent: 4796010 (1989-01-01), Bland et al.
patent: 4855723 (1989-08-01), Fritz et al.
"Security and Energy Control System", Feb. 1985, Paul S. Sanik, Owens-Corning Fiberglass Corporation, Research Disclosure 25031.
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