KR910005729B1 - Informing method in a security device - Google Patents

Abstract

This security system offers a way to detect abnormal (fire/ Gas leak) or absence staus of building and to inform it to remote warning system using only one transmission channel. The checking system is composed of abnormal detecting block which is consisted of sensor (S1), photo coupler (PC1), diode (D1) and bios resistors (R1a,R1b) and absence detecting block consisted of absence switch (SA) and resistor (RA1). The main processor (CPU) scans the input ports (IN1-INn,INA) for flag marking in pre-defined memory and detects the flagd-marking condition every time-interrupt to send pulses or to give outputs of abnormal or absence flag signal.

Description

How to notify person's absence and abnormal condition of security device

1 is a circuit diagram of the present invention.

2 is a flow chart of a human member and abnormal state notification control execution according to the present invention.

3a, b, and c are the output waveforms of the notification output terminal of the microcomputer of FIG. 1. FIG. 3a is an output waveform diagram in the normal state, FIG. 3b is an output waveform diagram in the absence state, and FIG. 3c is an output waveform in the abnormal state. Degree.

4 is a circuit diagram showing an embodiment of an alarm display apparatus using the notification output of the present invention.

* Explanation of symbols for main parts of the drawings

CPU: Microcomputer OSC: Oscillator

R1a... Rna, R1b... Rnb, R1... Rn, RA1... RA3: resistance

PC1... PCn: Photo Coupler

D1: Diode S1: Sensor

L1... Ln, LA: Light Emitting Diode (LED) SA: Absence Switch

PL1-PLn: Pilot Lamp BUF: Buffer

The present invention relates to a security device, and more particularly to a notification method for detecting the presence of people in the building and abnormal conditions in the security device to notify the outside.

With the development of the electronic communication industry, there is a tendency that interphones, fire alarms, etc. are installed as home security devices in each home or building.

The interphones are mainly installed in group homes, for example, apartments, homes, security offices, or administrative offices. Allows you to make a call to perform a security or communication function. In addition, the fire alarm performs a function of automatically alarming the guard room or management room by detecting an abnormal temperature of the temperature sensor when a fire occurs.

However, the interphone and the fire alarm are configured as separate devices, respectively, so that only a predetermined communication function and a fire alarm function can be performed.

As a result, they could not meet the needs of consumers who demand more comprehensive security functions. That is, the intercom device connected between each home and the guard room can notify the person's absence status of each home or detect various abnormal conditions such as automatic notification function or gas leakage to the outside intruder and notify the guard or management office. It could not respond to a comprehensive security system.

Accordingly, an object of the present invention is to provide an alarm signal notification method of a home security device that can automatically notify the outside by detecting the absence or abnormal state of a person in a residential building.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit diagram according to the present invention, in which a sensor S1 which is switched by sensing a predetermined abnormal state, and a resistor R1a and a light emitting diode LED are connected in series between a sensor voltage VS and the sensor S1. A resistor R1b and a phototransistor PT are connected in series between the light emitting circuit connected to the light emitting circuit switched by the sensor S1 and the power supply voltage Vcc and ground to determine the light emission amount of the light emitting diode LED of the light emitting circuit. An abnormal state consisting of a light receiving circuit for detecting and outputting an abnormal state signal and a light emitting diode protection diode D1 having an anode connected to a cathode of a light emitting diode LED of the light emitting circuit and a cathode connected to the anode. The member switch SA and the resistor RA1 are connected in series between the abnormality detecting means having a plurality of sensing units, the power supply voltage Vcc, and the ground, and the resistance RA1 when the member switch SA is on-switched. Absence of voltage across the alarm Member detection means for outputting a call, a plurality of input ports IN1 ... INn and a member detection signal input port INA, a plurality of alarm signal output ports P1-Pn, a member signal alarm port PA, and a notification signal output The abnormal state detection signal outputted from the abnormality detecting means with the terminal pout is input to the input ports IN1 ... INn, and at the same time, the member detecting signal outputted from the member detecting means is inputted to the input port INA, A microcomputer (CPU) for outputting a corresponding predetermined alarm signal and notification signal, and a plurality of current limiting resistors R1-Rn (RA2) are connected to the power supply voltage Vcc, and the plurality of current limiting resistors R1-Rn Another terminal of RA2 is connected to an anode of a plurality of light emitting diodes L1-Ln and LA, and a cathode of the plurality of light emitting diodes L1-Ln and LA is connected to the microcomputer CPU. Connection to alarm signal output port (P1-Pn) and absence signal alarm port (PA) And display means for displaying the output state of the alarm signal and the absence signal output from the plurality of output ports of the microcomputer (CPU), and connected between the notification signal output terminal (pout) of the microcomputer (CPU) and the ground. It consists of a resistor RA3.

In the figure, reference numeral OSC is a known oscillator which is connected to the microcomputer (CPU) to provide a predetermined oscillation signal.

In the configuration of FIG. 1, the abnormal state detection unit comprising the bladder circuit and the light receiving circuit connected to the input port IN1 is connected to the input ports IN2-INn of the microcomputer CPU. At this time, each sensor in the abnormal state detection unit respectively connected to the input ports IN2-INn of the microcomputer CPU is denoted as S2-Sn (S2 ... Sn-1 is not shown), and the present invention will be described. .

2A and 2B are flowcharts of control execution according to the present invention, and show an operation procedure of a control program built in the microcomputer (CPU).

FIG. 2A is a flow chart of the main routine, and FIG. 2B is an interrupt routine by timer interrupt.

At this time, the start of the main routine of FIG. 2a is logically high by the microcomputer CPU as the alarm signal output ports P1-Pn and the absence signal alarm port PA by a power reset by power supply. After outputting the W signal, the signals inputted to the input ports IN1 to INn and the member detection signal input port INA are checked to set the notification flag and the member flag set in the internal memory area.

The timer interrupt routine of FIG. 2b is a routine that is executed whenever a real time clock (RTC) in which a microcomputer (CPU) is built becomes a predetermined time.

3A, 3B and 3C are output waveform diagrams of the notification signal output terminal pout of the microcomputer CPU of FIG.

3A is an output waveform diagram of an ordinary output when no signal is input to the input ports IN1-INn and the absence detection signal input port INA.

3B is an output waveform diagram in the absence, and the high state is output when the member detection signal input port INA is turned on by turning on the member switch SA.

3C is an output waveform diagram in an abnormal state, in which the sensors S1 (S2-Sn) are operated to input an abnormal detection signal in a low state to the input ports IN1-INn.

Hereinafter, an embodiment of the operation according to the present invention will be described in detail with reference to FIGS. 1 to 3.

For convenience of explanation, if any fire occurrence detection sensor installed at a predetermined position in the room is called S1, the sensor S1 may be operated in a closed state in an open state only during a fire occurrence. It is a contact sensor. Therefore, in the normal state, the sensor S1 is in an open state, and thus the sensor-operated power supply voltage VS of FIG. 1 is not applied to the light emitting diode LED of the photocoupler PC1. That is, since no current flows between the anode and the cathode of the light emitting diode (LED), it does not emit light.

Therefore, the input port IN1 of the microcomputer CPU receives a logic high signal through the resistor R1b connected to the power supply voltage Vcc.

However, in an abnormal state such as when a fire occurs, the sensor S1 is in a closed state, so that the light emitting diode LED in the photocoupler PC1 is turned on and emits light. At this time, the photo transistor PT is saturated by the light emission of the light emitting diode LED, and the collector voltage thereof becomes the ground voltage state, whereby the input port IN1 of the microcomputer CPU has a logic low voltage. You will receive a signal.

Therefore, the microcomputer CPU inputs a low level or high level signal of a predetermined state according to the sensing operation state of each of the sensors S1 -Sn described above by the second port program. To detect whether there is an abnormality in the site where each sensor (S1-Sn) is installed, and outputs an alarm signal according to the result to the output port (P1-Pn) to output the corresponding light emitting diodes (L1-Ln). It turns on to display the status of abnormality in the home.

For example, when a fire occurs in the home and the sensor S1 is switched on, the light emitting diode LED of the photocoupler PC1 emits light. At this time, the phototransistor PT in the photocoupler PC1 is included in accordance with the light emission of the light emitting diode LED so that the potential of the collector is fed to the input port IN1 of the microcomputer CPU.

On the other hand, the microcomputer (CPU) is reset at the same time as the normal microcomputer at the same time as the power supply and then the logic “high” is applied to the alarm signal output port (P1-Pn) and the absence signal alarm port (PA) in step 21a of FIG. The light is turned off to turn off all the light emitting diodes (lamps) L1 to Ln.

The microcomputer (CPU) performing the step 21 scans the input port IN1 in step 22 and reads it, and determines whether an abnormality occurs in step 23. In other words, the input logic of the input port IN1 judges the human being or the “high”. If the signal generated by the operation of the sensor S1 read in step 22 is a logic blowdown, the microcomputer CPU determines that an abnormality has occurred (a fire has occurred), and the logic is output to the output port P1 in step 24. A low power is output to turn on the light emitting diode (lamp) L1 to indicate that a fire has occurred.

In FIG. 2A, a microcomputer (CPU) indicating that a fire has occurred in step 24A sets a notification flag set in the internal memory in step 25A in FIG. In operation 26, the microcomputer CPU scans the input port IN2 and inputs the output of the sensor S2. If the abnormality of the sensor S1 does not occur in step 23 described above, the microcomputer CPU directly jumps to step 26 to detect the state of the sensor S2.

The microcomputer CPU reading the input port IN2 in step 26 performs the same process as the above-described steps 23, 24, and 25 to generate an abnormality, and drives the lamp or the sensor according to the state. Mark the notification flag (set or reset). After that, the microcomputer CPU reads the input ports IN3-INn in the same order as described above, detects the status of the sensors connected to the respective ports, displays the status, and marks the notification flag. Thereafter, the microcomputer CPU reads the member detection signal input port INA in FIG. 2A to detect the switching state of the member switch SA.

Then, in step 28, the member switch SA is judged to be in an on state, and in the case of being in an on state (for example, when the member detection signal input port INA is logic high), the member flag is set in step 29. If it is not in the “warm” state, the process is repeated from step 22 described above.

On the other hand, the microcomputer (CPU) performing the routine of FIG. 2a performs the routine of FIG. 2b for each predetermined period (Timer Interrupt) to the internal real time clock (RTC).

When a timer interrupt is generated from the internal RTC, the microcomputer (CPU) determines whether or not the notification flag of the internal memory is set in step 2b of FIG. If the search determination result notification flag is set, the microcomputer (CPU) outputs a pulse signal as shown in FIG. 3C to a notification signal output terminal (pout), which is a port for transmitting data to a remote alarm display device in FIG. 32B. do.

If the notification flag is not set in step 2b of FIG. 31, the microcomputer CPU searches whether the member flag set in the internal memory is set in step 33.

If the member flag is set in step 33, the microcomputer CPU determines that the member switch SA is turned on, and outputs a member display signal having a high level as shown in FIG. 3b to the output terminal pout in step 34. do.

If the member flag is not set in step 33, the microcomputer (CPU) determines that it is in a normal state and outputs a fellow signal as shown in FIG. 3a to the output terminal pout. Therefore, when an abnormal state such as a fire or the like occurs, the signal of the waveform shown in FIG. 3C is output as a notification signal through the output port pout at the same time as the LED is turned on. Here, the sensor (S1-Sn) may be used a variety of conventional sensors, such as a thermal sensor or a gas sensor, it should be noted that the security function can be diversified according to the detection of the used sensor.

When the user presses the member switch SA for the member notification, a logic high signal is applied to the power supply voltage Vcc to the input port INA.

Therefore, the microcomputer (CPU) detects the process by the program of Fig. 2a and outputs a low signal to the output port PA to turn on the light emitting diode LA, and the notification output port Pout. In Figure 3b, a signal having a waveform as shown in Fig. 3b is output as a notification signal.

According to the procedure of FIG. 2A, which is a control program built in the microcomputer (CPU), the control procedure such as determination of occurrence of abnormal state or notification of absence in the operation relationship is abnormal state detection switch (S1-Sn) and absence switch. The microcomputer CPU determines an operating state of the SA and sets it in an internal memory, and corresponds to an abnormal state or an absent state determined in the control procedure of FIG. 2a for each meta-memory interrupt according to the procedure of FIG. 2b. Output the notification output from the output port (pout) to the outside.

4 is a circuit diagram showing an embodiment of the alarm display device to which the notification output of the present invention is applied, and a plurality of home security devices having the configuration as shown in FIG. When the port pout is connected to one of the input terminals of the buffers B1-Bn in the figure, the port pout corresponds to the notification signal output in the usual, absent and abnormal conditions shown in Figs. 3A, B and C. The pilot lamps PL1 to PLn are driven in a "off", "on" or "flashing" state.

For example, if the security device of FIG. 1 is located in generation 1, the pilot lamp (by connecting the notification signal output port pout of the FIG. 1 microcomputer CPU to the input terminal of the buffer B1 of FIG. PL1) displays the notification signal output from the microcomputer (CPU).

That is, when the signal output terminal pout of the microcomputer CPU of FIG. 1 outputs a signal as shown in FIG. 3B, the pilot lamp PL1 of FIG. 4 is continuously lit to indicate the absence state, and as shown in FIG. When the signal is output, the pilot lamp P1 is flickered to display an abnormal state.

Therefore, when the alarm display device of FIG. 4 is installed in a security room connected to each household or in a management room in a building, abnormality or absence of each household or any place where the security device is installed can be known at a glance.

In the above-described embodiment, the alarm display device is configured by using the buffers B1-Bn and the pilot lamps PL1-PLn, but one of ordinary skill in the art may realize that the alarm display device may be configured differently by another display means. It will be easy to understand.

As described above, the present invention has the advantage that it is possible to save the wiring and the efficiency of system management by being able to notify the status of abnormality and absence of the relevant place as a device in the security system of the group residential building. .

Claims (2)

At least one abnormal state detection unit comprising a predetermined sensor S1, a photocoupler PC1 connected thereto, and a diode D1 connected between both terminals of the photocoupler PC1 and bias resistors R1a and R1b. The member detecting means and the member (SA) and the resistor (RA1) is connected in series between the power supply voltage and the ground and the member detecting means for outputting the member detecting signal according to the switching of the member switch (SA), the abnormal state detection The output of the means and the member detecting means are input to the plurality of input ports IN1 to INn and the member detecting signal input port INA, respectively, and the alarm signal and the notification signal corresponding to the input are sent to the alarm signal output terminal and the notification signal output terminal. Human member and abnormality of a security device having a microcomputer (CPU) for outputting each other and an alarm display device in which a buffer and a pilot lamp are connected in series to a notification signal output terminal of the microcomputer (CPU). In the status notification method, an abnormal state searching process for scanning whether the abnormal state has occurred from the abnormal state detecting means by scanning the input port, and in the internal memory when it is determined that an abnormal state has occurred as a result of the search for the abnormal state searching process. A notification flag set process for setting a notification flag and scanning for a member detection signal input port, and a member detection state signal input for directly scanning the member detection signal input port when it is determined that an abnormal condition has not occurred as a result of the search for the abnormal state search process. And the absence state search process for searching for the absence state by the absence detection state signal inputted by the notification flag set process and the absence state signal input process; and the internal memory upon determining that the absence state is the search result. A part that sets an absent flag to and returns to the abnormal state search process. A flag set process and an alarm signal output process of searching for a notification flag and an absence flag set state located in an internal memory every predetermined operation period and outputting an abnormal state and an absence state signal according to the set state of the flag to the notification signal output terminal. Human member and abnormal state notification method of the security device, characterized in that consisting of. According to claim 1, wherein the alarm signal output process is a notification flag state search process for searching whether the notification flag located in the internal memory is set, and the notification signal in the form of a pulse when it is determined that the notification flag is set in the notification flag state search process Is outputted to the notification signal output terminal and returned, and a single level is detected when the member flag is set in the absence flag state search process for searching whether the absence flag is set when the notification flag is not set. And a member signal output process of outputting and returning a member signal to the notification signal output terminal and returning the member signal when the member signal is not set. [Summary] In the security device, the present invention relates to a control system of a security system for notifying a remote device of a detected abnormal state and absence of a person. In this system, the alarm status and human absence status signal notification method is used to notify the alarm device of remote location through a single transmission path for abnormal status (for example, fire occurrence, gas leak, etc.) and human absence status. (CPU) was adopted. A plurality of input ports of the microcomputer are connected with abnormal state detecting means for detecting various states and informing of an abnormality, and at the same time, absence state detecting means for outputting a human absence state signal by a user's switching action. And scanning the plurality of input ports in the microcomputer (CPU) to mark the state of the flag set in the internal memory, and searching the marking state of the flag set in the internal memory at predetermined timer interrupts. As a result, the function of outputting a pulse or single level abnormal state and absence state signal was added so that the abnormal state and absence state could be transmitted at a long distance, thereby improving the function of the home security device.