JPH039516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alarm device, and particularly to an alarm device that generates an alarm based on an abnormality detection signal transmitted from abnormality detection means provided at various locations in a house, for example.

Conventionally, there have been fire sensors installed in various parts of houses, such as fire sensors that detect the occurrence of a fire, intrusion sensors that detect the opening and closing of doors and windows to detect intrusion abnormalities, glass sensors that detect broken glass, and gas sensors that detect gas leaks. There is an alarm device that generates an alarm based on abnormal signals from each of these sensors and transmits the status to an external security center. With such devices, alarms are reported indoors and to the security center, but no outsiders (neighbors) are alerted, and it is often the case that an abnormality is discovered only after the police arrive. There was also the problem that even when patrol officers came, they could not immediately identify the house with the abnormality and had to search around for it. In addition, in large houses, for example, when a control device is installed on the first floor and family members are on the second floor, there is a drawback that the alarm sound cannot be heard even if an abnormality occurs on the first floor.

Furthermore, the installation of these emergency warning lights requires wiring work, which makes the work cumbersome, increases construction costs, and impairs the aesthetic appearance of the interior of the house, making it difficult to spread the use of alarm devices in general houses. There were some drawbacks that were a hindrance.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and it converts abnormal signals from various sensors into wireless signals, and utilizes electric power line conveyance to provide an emergency notification light that operates in conjunction with a controller on the outside of a house. It has been established.

It has a sensor that detects abnormalities in the house, and a frequency setting section that is driven by battery power and sets the number of transmissions depending on the importance of the abnormality detection signal, and transmits the abnormality detection signal of the sensor by encoded weak radio waves. A transmitter that transmits as many times as the number of transmissions in the number setting section, and a transmitter that receives an abnormal signal of encoded weak radio waves for the set number of times and superimposes a carrier wave modulated by the abnormal signal on the power line frequency. a controller that sends a superimposed signal to a power line; a power line carrier connected to the controller via a power line and equipped with means for identifying an abnormal signal from the superimposed signal; and a signal sent from the power line carrier. The object of the invention described above is achieved by providing an alarm device characterized by comprising a display device that displays information in response to the alarm.

The above-mentioned objects and other objects and features of the present invention will be described in detail below based on embodiments with reference to the drawings.

First, FIG. 1 is a schematic mechanical diagram showing an alarm system according to an embodiment of the present invention, and FIG. 3 is a layout diagram thereof. In both figures, a fire transmitter 2, an intrusion transmitter 3, a glass transmitter 4, and a gas transmitter 5 are provided at various locations in a house 1, and each transmitter is used for fire,
Detects intrusion abnormalities, glass cracks, and gas leaks. When each transmitter detects an abnormality, it transmits an abnormality detection signal to the controller 7 provided on the first floor. Further, the emergency button 6 is always kept at hand by the householder.
When a household member discovers an abnormality, the emergency button 6 is operated and an abnormality detection signal is sent to the controller 7. The controller 7 generates an alarm based on the detection signals from each of the transmitters 2 to 5 and the emergency button 6. For example, a drive signal is sent to the dialer 8. This dialer 8 is directly connected to a telephone line, and stores in advance the dial signal of the security center from which security is requested. That is, when the dialer 8 receives a drive signal from the controller 7, it notifies the security center 9 of an abnormality. Further, power for driving is supplied to the controller 7 via a power line 10. When the controller 7 determines that there is an abnormality, it issues an alarm and gives a drive signal to the buzzer box 11, which is a power line carrier on the second floor, via the power line 10, and also sends a signal to the buzzer box 11, which is a light line carrier, on the second floor. A drive signal is applied to a certain switch box 12. Note that the switch box 12 is used to turn on a light 13 provided outside the house 1. When an abnormality occurs, if the light 13 provided outside the house 1 is on, the abnormality can be easily discovered from the outside. The patrol button 14 is held by a security guard at the security center 9. That is,
When the security center 9 receives a report of an abnormality, a security guard rushes to the house 1 where the report was made and presses the patrol button 1.
4 to stop driving the switch box 12.

FIG. 2 is a schematic block diagram of the fire transmitter 2 in FIG. In configuration, this fire transmitter 2 includes a fire sensor 201 . This fire sensor 2
01 includes, for example, a smoke detector and a temperature sensor, although not shown, and detects that a fire has broken out in the house 1. The fire detection signal from this fire sensor 201 is sent to the CPU 2 via an intermittent transmission circuit 202 for 10 seconds.
Given to 03. That is, the fire sensor 201
The fire detection signal from the 10-second intermittent transmission circuit 202 is given to the CPU 203 every 10 seconds. this
A clock pulse generation circuit 204, a ROM 205 and a RAM 206 are provided in conjunction with the CPU 203. That is, the CPU 203 operates in synchronization with the clock pulses supplied from the clock pulse generating circuit 204. Also, in the ROM205,
For example, an operation program as shown in FIG. 5 is stored. Further, in connection with the CPU 203, a transmission circuit 207, a frequency setting section 208, a low battery warning buzzer 209, a house code setting section 210, and a voltage detection circuit 211 are provided. This transmitting circuit 2
07 is for transmitting a code given from the CPU 203 to the controller 7 when an abnormality is detected;
For example, the code given from the CPU 203 is
It is doubly modulated at 4.1KHz and 332MHz and transmitted to the controller 7. The number of times setting unit 208 is for setting the number of times the code is transmitted from the transmitting circuit 207. Note that, as will be described later, the number of sending times set by this number setting unit 208 differs depending on the importance of abnormality detection. That is, a transmitter that detects an important abnormality is set to a larger number of times. In the house code setting unit 210, a predetermined code is set for each house in which the alarm system is used.
The voltage detection circuit 211 is for detecting whether the battery 212 is exhausted, and when the output voltage of the battery 212 falls below a predetermined value, the CPU 20
3, the low battery warning buzzer 209 sounds.

FIG. 4 is a schematic block diagram of the controller 7. In the same controller configuration, a clock pulse is applied to the CPU 30 from a clock pulse generation circuit 31. That is, the operation of the CPU 30 is controlled in accordance with this clock pulse. Also, CPU
30, ROM32, RAM33 and I/
0 interface 34 is provided. this
A predetermined operating program is stored in the ROM 32. Further, the RAM 33 includes a storage area as shown in FIG. 5, for example. I/0 interface 34 is connected to diaphragm 8 . Furthermore, the antenna 38 is connected to a super-reproduced wave detector 37 and a 4.1KHz wave detector 3.
6 and an amplifier 35 to an I/O interface 34 . That is, the transmitters 2-
The radio waves transmitted from the antenna 6 are received by the antenna 38 and detected by the ultra-reproducer 37.

The output of this ultra-reproduced wave detector 37 is further detected by a 4.1 KHz wave detector 36. In this way, the reason why the received radio waves are detected twice is that each transmitter 2 to 6 detects the 4.1K signal once when transmitting the detection signal.
This is because after modulating at Hz, it is further modulated at 332MHz. In addition, since such a warning system uses weak radio waves, the super reproducibility waver 37 is used for the purpose of increasing reception sensitivity. Furthermore, the I/O interface 34 is connected to the power line 10 via a modulator 39, an amplifier 40 and a capacitor 41. In other words, based on the abnormality detection signal, CPU3
0 is determined to be abnormal, a predetermined signal is given to the modulator 39 via the I/0 interface 34. After being modulated by a modulator 39, this signal is sent to the buzzer box 1 via a power line 10.
1 and switch box 12 as a drive signal. Note that the power line 10 is connected to a voltage stabilizing circuit 42.
given to. The stabilized voltage output from the voltage stabilizer circuit 42 is used as a drive voltage for the controller 7. Further, the I/0 interface 34 is connected to the speaker 27 via a buzzer circuit 43.

FIG. 5 is a flowchart for explaining the operation of each abnormality transmitter. The operation of each abnormality transmitter will be explained below with reference to FIG. In addition, since the operation of each abnormal transmitter is almost the same,
Here, the operation of the fire transmitter 2 will be representatively explained.

First, the CPU 203 determines whether there is an abnormality detection signal from the fire sensor 210. If there is no abnormality detection signal, this judgment step is repeated.

On the other hand, if there is an abnormality detection signal, a transmission code is created. This transmission code is 15 as shown in Figure 6.
Consists of bits. The upper 8 bits include the house code read from the house code setting section 210.

By including the house code in the transmission code in this way, it is possible to prevent abnormal signals from interfering between houses, even if neighboring houses use the same alarm system. Further, the transmission code includes an 8-bit house code followed by a 5-bit unit code. This unit code is a code read from the RAM 206 (unit code setting section 315 in the intrusion transmitter 3). By including the unit code in the transmission code in this way, the controller 7 can easily determine from which abnormal transmitter the code was transmitted. Furthermore, the sending code is 5
Contains a 2-bit operation code following a bit unit code. This operation code is a code indicating the operation status of each abnormal transmitter. For example, in the fire transmitter 2, "11" is used as a code to indicate that the battery 212 is dead, and "00" is used as a code to indicate that a fire has occurred. In addition, intrusion transmitter 3
In this case, "00" is used as a code to indicate the open state of the window or door, and "01" is used as the code to indicate the closed state of the window or door. Furthermore,
“10” is used as a code to indicate that the function has been canceled by the partial release switch 314, and “11”
is used as a code indicating that the battery 312 is dead.

In this way, by including the operation code in the transmission code, the controller 7 side can know the operation status of each abnormal transmitter in detail, and can perform effective processing corresponding to each operation status.

Next, the CPU 203 reads the number of transmissions from the number of times setting unit 208, and sets the read number of transmissions in a counter. In this case, a part of the storage area of RAM 206 is used as a counter. Next, the CPU 203 provides the created transmission code to the transmission circuit 207 and transmits it to the controller 7. and,
Decrement the count value of the counter by 1. After that, CPU2
03 determines whether the count value of the counter is 0 or not. If the count value of the counter is not 0, the transmission code is transmitted to the controller 7 again. That is, the CPU 203 repeats the transmission the number of times set by the number of times setting section 208.

FIG. 7 is a block diagram of the switch box 12 which detects an abnormal signal sent to the power line 10 via the modulator 39 of the controller 7 and drives the lamp (emergency light) 13. In the same figure, the carrier wave sent superimposed on the power line is the capacitor 12.
1,122, and is amplified by an amplifier 123. The amplified signal is sent to the detection circuit 124
Only the carrier frequency component is extracted through the limiter 125, and only the abnormal signal component digital signal is reproduced through the limiter 125. The reproduced digital signal is decoded by a microcomputer 126 and output as a relay drive signal to a relay drive circuit 127. This relay drive circuit 127 drives the relay coil 128 to switch the relay switch 12 inserted into the power line 10.
9 is turned on, AC power is supplied to the lamp 13, and the lamp 13 is turned on. The lighting style of the lamp 13 (continuous lighting, dimming, etc.) can be arbitrarily set by the microcomputer 126. The configuration of the buzzer box 11 on the second floor is also almost the same as that shown in FIG. 7, with only the lamp 13 serving as a buzzer drive circuit.

In the alarm device configured as described above, when an abnormality occurs in the house and the controller 7 determines that there is an abnormality,
The buzzer 27 of the controller 7 itself generates an alarm sound, and the buzzer box 11 on the second floor also generates an alarm sound via the power line 10, and the lamp 13 is turned on. Therefore, even if there are family members in a room other than the room where the controller 7 is installed, the alarm will not be heard. In particular, it is more convenient to make the buzzer box 11 detachable from the indoor wiring outlet and portable, since it can be moved with the family. or,
Since the lamp 13 is lit outside the house 1, the patroller at the security center 9 can quickly find the house in question, and big fires, thefts, etc. can be prevented. Moreover, since the existing indoor wiring is skillfully used for connection with the buzzer box 11 and the lamp 13, there is an advantage that the indoor appearance is not spoiled and installation is extremely simple. or,
The number of transmissions of the abnormal signal sent from the transmitter can be set depending on the importance level, so it can be received by the controller without fail, improving the reliability of the alarm system's operation, and preventing interruption of operation even in the event of a power outage. In order to avoid problems, the abnormal signal from each battery-powered sensor is transmitted more or less depending on its importance or urgency, so if it is of relatively low importance, By reducing the number of transmissions, battery power can be saved.

As described above, according to the present invention, an abnormality that occurs in a house is notified to the security center and an emergency light installed outside the house is turned on, so that it is easily discovered by the security center patroller and damage caused by the abnormality is reduced. It has the advantage of being small.

[Brief explanation of the drawing]

FIG. 1 is an illustrative diagram showing an alarm system according to an embodiment of the present invention, FIG. 2 is a schematic block diagram of the fire transmitter 2 in FIG. 1, and FIG. 3 is a layout diagram of each device in FIG. Figure 4 is a schematic block diagram of the controller 7, Figure 5 is a flowchart for explaining the operation of each abnormal transmitter, Figure 6 is a diagram showing the bit configuration of the transmission code, and Figure 7 is a block diagram of the switchbox. . In the figure, 1 is a house, 2 is a fire transmitter, 3 is an intrusion transmitter, 4 is a glass transmitter, 5 is a gas transmitter, 6 is an emergency button, 7 is a controller, 10 is a power line, and 12 is a switch box. , 13 indicates a lamp.

Claims (1)

[Claims] 1. A sensor that detects an abnormality in a house, and a frequency setting section that is driven by a battery power source and sets the number of transmissions according to the importance of the abnormality detection signal, and the sensor detects an abnormality detection signal of the sensor. a transmitter that transmits encoded weak radio waves for the number of transmission times in the number setting section; and a carrier wave that receives an abnormal signal of the encoded weak radio waves for the set number of times and is modulated with the abnormal signal. a controller that sends a superimposed signal obtained by superimposing the signal on the power line frequency to the power line; a power line carrier connected to the controller via a power line and equipped with means for identifying an abnormal signal from the superimposed signal; 1. An alarm device comprising: a display device that displays a message in response to a signal sent from a wire carrier. 2. The alarm device according to claim 1, wherein the display device is a buzzer that displays by sounding a buzzer. 3. The alarm device according to claim 1, wherein the display device is an emergency light installed on the outside of a house.