JPS583182Y2 - Tsuuhou Souchi - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a reporting device that is capable of determining which switch among a plurality of switches is activated.

Conventionally, in a notification system where reports from multiple notification switches that report the occurrence of a fire or crime are centrally managed by a single management device, three electric wires were used for each terminal switch. If so, it was not possible to determine which notification switch was activated.

The purpose of this invention is to provide a reporting device that can determine which terminal device is operating simply by installing two common lines between multiple terminal devices and the management device. be.

An embodiment of this invention will be described below with reference to the drawings.

In Figure 1, buttons 1 and 1 indicate the central control unit, 2-1, 21, and so on.
. . . , 2-n are notification pushbutton switches that are appropriately distributed in each room of the building.

Each pushbutton switch 2-1, 2-2,...
, 2-n are resistors 3-1, 3-2, . . .
. . , 3-n are connected in parallel to two wires 5 and 6 connected to the current output terminal of the DC power supply 4 which generates the constant current (2) of the central management device 1.

Each resistance value r1 of the resistors 11, 3-2, . . . 3-n. r2. ......The ratio of rn is set to a value having an appropriate integer ratio, and each pushbutton switch 2-
1, 2, 2. ......, the voltages of wires 5 and 6 when they are closed by pressing 2-n separately, vi, v2, ...
,■.

are rl ・I, rl-I, ... trn, respectively.
-I.

7 is an analog-to-digital converter (hereinafter referred to as an AD converter or digital panel meter) that converts the voltage between the lines 5 and 6 into a digital signal and has a resolution corresponding to the number of notification pushbutton switches installed.

). Reference numeral 8 denotes a gate circuit that generates signals at different output terminals in accordance with the output digital quantity of the AD converter I.

11.9,2. ..., 9-n is a display device that lights up with the output signal of the gate circuit 8, 9-1 corresponds to the push button switch 2-1, 9-2. . . . , 9n is a push button switch 2-2. ..., 22n, respectively.

Reference numeral 10 denotes an indicator light that lights up when any of the display devices operates.

With the configuration as described above, the wires 55 and 6 are connected from the DC power supply 4.
A constant current ■ is supplied to.

Now, when pushbutton switch 2-1 is pressed, the above current flows through this pushbutton switch 2-1. The voltage v1 flowing through the resistor 3-1 and between the lines 5 and 6 becomes rl·■.

This voltage is supplied to an AD converter and converted into an appropriate digital quantity, and an output signal is generated at the output terminal 8-1 of the gate circuit 8 based on the output quantity of the AD converter I.

The output signal generated at this terminal 8-1 causes the display device 9-1 to
is lit, and the central control device 1 presses the pushbutton switch 2-.
1 has been manipulated.

Also, when pushbutton switch 2-n is pressed, lines 5 and 6 are set to vl.
-rn-I occurs, and this V n IJ'A D converter 7
is converted into a digital quantity at terminal 8-n of gate circuit 8.
produces an output signal.

The output signal from the terminal 8-n causes the display device 9-n to light up, indicating that the pushbutton switch 9-n has been operated.

When either button is pressed, the indicator light 10 lights up to notify a staff member or the like.

FIG. 2 shows a detailed embodiment of this invention, and parts in FIG. 2 that are equivalent to those in FIG. 1 are given the same reference numerals.

Click the buttons in Figure 2 to select NA1, NA2, and NAl1.

NAl2. ...NA18, NA21, NA
22.

...NA28, NA31, NA32.
■・NA39゜NA41, NA42, NA31
, NA32 is a Nantes gate.

DM is a decoder and diode matrix, 5CR1, which converts the single-digit or multiple-digit BCD output of the AD converter 7 into decimal numbers arranged randomly regardless of the size of the BCD outputs, which are the same as the number of notification pushbutton switches installed. 、・
...5CRn is a light emitting diode 9-1. as a display device. . . . The thyristor that controls the lighting of 9-n, the relays R1 and R2, and the relay PB are push button switches for return.

11 is a light emitting diode 9-1. ...9-n and relays R1 and R2.

Referring to the circuit shown in Figure 2, which pushbutton switch 2
-1.2-2. ......, when 2-n is not operated, a high voltage V is generated in the lines 5 and 6, and the 0VER terminal of the digital panel meter 7 as an AD converter is at H'' (logic level 1). ).

In addition to this ``H'' signal (NAND gate) NA1, the transistor Tr is turned off, and the output of the NAND gate (NAND gate) NA2 becomes tLj'' (logic level O).

The output tt Lpp of the NAND game NA2 closes each of the NAND games NA11 to NA18.

That is, the output of AD converter 7 is not transmitted to decoder DM.

If you press the pushbutton switch 2-1 now, the voltage on the line 5゜6 will drop to V1=r1・■, and the digital panel meter 7 will drop.
The 0VER terminal becomes tLy'', and the put gate NA
The output of 1 is °“H”, the output of NA2 is “H”
becomes.

When a signal is generated at the terminal A of the digital panel meter 7 due to the voltage v1 described above, the Nant gate NAl1 opens.
A signal is applied to the decoder DM via the Nant gate NA21, and the voltage v1 described above is converted into a decimal number and outputs are generated at the terminals DMI 1 and DMI 2.

As a result, the thyristor 5CR1 is fired via the NA41 and NA31, and the light emitting diode 9-1
lights up.

Furthermore, the ignition of the thyristor 5CRIO turns on the relay R1, closes the contacts R1 and 1a, and lights up the indicator light 10.

When the other pushbutton switch is pressed, the voltage appearing on lines 5 and 6 is converted into a BCD signal by the digital panel meter 7, further converted into a decimal number, and then sent to the decoder D.
A signal is generated at one of the terminals of M, the thyristor corresponding to the pressed pushbutton switch is fired, and the light emitting diode connected to that thyristor is lit.

Note that by pressing the return pushbutton switch PB, the relay R1 or the fired thyristor is turned off.

As mentioned above, the reporting device according to this invention includes switch means 2-1 and 2- having appropriately arranged resistors.
2, ..., a plurality of signal generating means that generate signals of different values depending on the operation of 2-n and the correlation with the constant current DC power source 4, and a plurality of signal generating means that generate signals of different values depending on the operation of 2-n and the correlation with the constant current DC power source 4, and An analog-to-digital converter 7 having a resolution corresponding to the number of installed signal generating means for converting into a digital signal, and an analog-to-digital converter 7 having a resolution corresponding to the number of installed signal generation means, and an analog-to-digital converter 7 that is randomly arranged according to the output amount of each analog-to-digital converter 7, regardless of the size of the output amount. gate circuit 8 for generating a signal from the gate circuit, and means 9-1.9-2 for displaying which signal generating means is activated by the signal from the gate circuit. ..., 9-n.

The management device is driven by signals from reporting terminal devices placed at multiple locations, and a button is pressed on the reporting device to indicate the location where the reporting has been made.Each terminal device is connected to two wires. Since it is only necessary to connect them in parallel, the wiring work is simplified, materials are saved, and construction costs can be reduced.

Further, in the above-described embodiment, each terminal device has only a switch and a resistor connected in series with the switch, and therefore has the advantage of being extremely simple in structure.

A fire alarm contact may be connected in parallel with the pushbutton switch for snoop notification.

Furthermore, the wiring lines 5 and 6 have the advantage that they can be used together with an existing coaxial cable for common television viewing.

[Brief explanation of drawings]

FIG. 1 is a block circuit diagram showing one embodiment of this invention, and FIG. 2 is a detailed circuit diagram of the embodiment of FIG. 2-1, 2, 2. ......, 2-n... push button switch for reporting, 3-1, 3-2,...t
3n...Resistor, 4...Constant current DC power supply, 5,6...
・Wiring, 7... AD converter, 8... Gate circuit, 9
-1, 9-2,...9-n...Display device.

Claims (1)

[Scope of utility model registration request] A plurality of signal generating means that generate signals of different values depending on the operation of the switching means having appropriately arranged resistors and a correlation with the constant current DC power supply, and a plurality of signal generating means that generate signals of different values from each other depending on the operation of the switching means having appropriately arranged specific resistances, and An analog-to-digital converter having a resolution corresponding to the number of installed signal generating means for converting into a digital signal, and an analog-to-digital converter having a resolution corresponding to the number of installed signal generating means, and each analog-to-digital converter are arranged randomly according to the output amount, regardless of the size of the output amount. 1. A reporting device comprising: a gate circuit that generates a signal; and means for displaying which signal generating means is activated by the signal from the gate circuit.