JPH1164427A - Disconnection reporting method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of an operation part for coping with the case when a disconnection detection function is not needed, to improve handleability and to lower a cost. SOLUTION: Respective kinds of devices 20 such as a house information panel or the like are connected through an electric line L to a connection equipment 10 such as a gas leakage alarming device or the like, for which an output voltage value is higher than a prescribed level when normally operated. The respective kinds of the devices are provided with an operation start initial judgement means for stopping reporting that it is disconnection at the time of detecting only output below the prescribed level initially from the start of an operation, and a disconnection judgement means for reporting that it is the disconnection for the first time in temporarily detecting the output higher than the prescribed level and then detecting the output below the prescribed level. The disconnection of the electric line such as a signal line between the gas leakage alarming device or the like is detected, and reporting is not performed even when it has been in a disconnection state initially from the time of supplying power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In the present invention, even if no special operation unit is provided, an electric circuit which is not connected from the beginning does not react, and an electric circuit which has been normally connected is disconnected. The present invention relates to a disconnection notifying method and a device for notifying a disconnection for the first time.

[0002]

2. Description of the Related Art A conventional disconnection notifying method and apparatus will be described with reference to FIGS. 5 is a system configuration diagram constructed using an apparatus having a disconnection notification function, FIG. 6 is a block diagram illustrating an apparatus having a disconnection notification function, and FIG. 7 is a diagram illustrating disconnection notification of an apparatus having a disconnection notification function. FIG. 7 is a state transition diagram of

In FIG. 5, reference numeral 10 denotes a gas leak alarm corresponding to connected equipment, reference numeral 20 denotes a housing information panel corresponding to various devices, and reference numeral 30 denotes an alarm monitoring panel which is a master unit of various devices. It will be installed in an apartment house.

[0004] The house information panel 20 is installed in a living room of a house or the like. The housing information panel 20 is connected to a door phone slave unit (not shown) installed at the entrance, a gas leak detector 10 installed in a kitchen using gas, and the like via a signal line L corresponding to an electric circuit. doing.

[0005] When the visitor presses a resident call button (not shown) of the door phone handset, the house information panel 20 sounds a chime to notify the resident that the visitor is present. In response to the chime sound, the resident can talk with the visitor via the house information panel 20 and the door phone handset.

Further, the house information panel 20 monitors an output voltage value E output from the gas leak detector 10,
For example, if the output voltage value E is in the range of 0V ≦ E <4V, the signal line L is in a disconnected state (disconnected state), and 4V ≦ E <8.
In the range of V, the signal line L is not disconnected and no gas leakage occurs (normal state). If 8V ≦ E, the signal line L is not disconnected and gas leakage occurs. (Abnormal state).

When the output voltage value E of the gas leak detector 10 is in the range of 0V ≦ E <4V, the house information panel 20 continuously sounds the alarm sound generator 21 and turns on the gas leak indicator lamp 22. State to notify that the signal line L is disconnected. In addition, the housing information panel 20
If the output voltage value E is in the range of 4V ≦ E <8V, the alarm sound generation unit 21 is not sounded and the gas leakage indicator lamp 22 is turned off, so that the signal line L is not disconnected and the gas leakage is not caused. Notify that you are not in the state. Further, if the output voltage value E is 8V ≦ E, the house information panel 20 intermittently sounds the alarm sound generation unit 21 and sets the gas leak indicator lamp 22 to a blinking state, and the signal line L is disconnected. Notifies that there is no gas leak, although it is not.

However, the housing information panel 20 corresponding to various conventional devices, if any, if the output voltage value E of the gas leak detector 10 is in the range of 0V ≦ E <4V, the alarm sound generating section 21 is continuously sounded. At the same time, the gas leak indicator lamp 22 is turned on, and the alarm monitor panel 30 is notified of the disconnection.

Therefore, when the power is turned on to the house information panel 20 in a state where the doorphone slave unit is connected but the gas leak detector 10 is not connected, the house information panel 20 continuously emits an alarm sound and sets the gas leak indicator lamp 22 to a sound. Since the lamp is turned on and the alarm monitor panel 30 is notified of the disconnection, it is difficult to check because the alarm sound is too loud even if it is attempted to first check the communication state with the intercom slave unit without the gas leak detector 10 connected. At the same time, the alarm monitoring panel 30 may be inadvertently notified of the disconnection, which may inconvenience the observer in the disaster prevention control room where the alarm monitoring panel 30 is installed.

Also, when the house information panel 20 is not used for the gas leak detector 10 but is used only for the intercom function between the door phone and the slave unit, an alarm sound of the alarm sound generating unit 21 and a gas leak display are provided. The flashing of the light 22 and the notification of the disconnection to the alarm monitoring panel 30 become a hindrance and cannot be used.

In order to solve this problem, a dip switch 23 and the like are provided inside the housing information panel 20 and the operation mode is switched by operating the dip switch 23, thereby providing a disconnection notification function, a gas leak notification function, and the like. Could be disabled.

[0012]

That is, in the conventional various devices, it is necessary to provide an operation unit such as a dip switch for switching the operation mode in order to cope with a case where the disconnection notification function is unnecessary. However, there is a problem that extra space is required and the cost is high.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to eliminate the need for an operation unit for responding to the need for a disconnection detection function, thereby providing good usability and low cost. An object of the present invention is to provide an excellent disconnection notifying method and apparatus which can be configured as described above.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, when a normal operation is performed, an electric circuit is connected to a connected device that outputs a predetermined level or more. Is a disconnection notification method in various devices connected via an interface, wherein if only the output below the predetermined level is detected from the beginning of the operation, it is not notified that the disconnection has occurred, but the output above the predetermined level is once detected. It is characterized in that, when an output below the predetermined level is detected later, the disconnection is first notified.

According to a second aspect of the present invention, there are provided various devices connected via a power line to a connection device that outputs a predetermined level or more when the device is operating normally, and the device is connected to the device below the predetermined level from the beginning of operation. An operation start initial determination means that does not report a disconnection if only the output is detected, and a disconnection for notifying as a disconnection only when an output below the predetermined level is detected after once detecting an output above the predetermined level. And a determining means.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disconnection notification method and apparatus according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a block diagram illustrating an apparatus having a disconnection notifying function, and FIG. 2 is a system configuration diagram constructed using an apparatus having a disconnection notifying function. FIG. 3 is an explanatory diagram showing a control flow in an apparatus having a disconnection notification function,
FIG. 4 is a state transition diagram illustrating disconnection notification of an apparatus having a disconnection notification function.

In FIG. 1, reference numeral 10 denotes a gas leak detector corresponding to connected equipment, reference numeral 20 denotes a housing information panel corresponding to various devices,
Reference numeral 30 denotes an alarm monitoring panel, which is a master unit of various devices, and is installed in an apartment house such as an apartment.

As shown in FIG. 1, a gas leak detector 10
Is configured to include a gas sensor unit 11 and a DC voltage output unit 12, and is installed indoors to detect gas leakage. If the amount of gas detected by the gas sensor unit 11 is less than a certain threshold, the gas leak detector 10 determines that the room in which the gas leak detector 10 is installed is in a normal state in which no gas leak has occurred. Upon determination, the DC voltage output unit 12 outputs a constant voltage value of, for example, 6V. On the other hand, if the amount of gas detected by the gas sensor unit 11 has reached a certain threshold, the gas leak detector 10 has a gas leak in the room in which the gas leak detector 10 is installed. It is determined that the state is abnormal, and the DC voltage output unit 12 outputs a constant voltage value of, for example, 12 V higher than that in the normal state.

The house information panel 20 is installed in a living room of a house or the like. The housing information panel 20 is connected to a door phone slave unit (not shown) installed at the entrance, a gas leak detector 10 installed in a kitchen using gas, and the like via a signal line L corresponding to an electric circuit. doing.

The house information panel 20 is, for example, an intercom installed in each dwelling unit of an apartment house or the like. When a visitor presses a resident call button (not shown) of a door phone handset,
Sounds a chime to alert the resident that there is a visitor. In response to the chime sound, the resident can talk with the visitor via the house information panel 20 and the door phone handset.

The house information panel 20 includes an alarm sound generator 21,
A gas leak display circuit section 22, a CPU 24, a gas detection circuit section 25, and a transmission circuit section 26 are provided. The CPU 24 includes an alarm sound generation unit 21, a gas leak display circuit unit 22, a gas detection circuit unit 25, and a transmission circuit unit 26.
And are respectively connected to.

The CPU 24 is connected to the gas leak detector 10 via the signal line L from the gas detection circuit 25,
The voltage output value from the DC voltage output section 12 of the gas leak detector 10 is read by the gas detection circuit section 25 to determine whether the gas leak is in a normal state or an abnormal state.
However, the constant voltage value of 6 V is not exactly output from the DC voltage output unit 12 and includes an error.
If the length of the signal line connecting the housing information panel 20 to the housing information panel 20 is long, the voltage level of 6 V may be attenuated before being detected by the gas detection circuit unit 25.
To prepare for this, the gas detection circuit unit 25 detects the voltage value to be read (hereinafter referred to as E) in a level range of, for example, 4 V ≦ E <8 V, and outputs a voltage value of 6 from the DC voltage output unit 12.
The CPU 24 determines that a constant voltage value of V
Then, a notification is made as a normal state in which the gas leak is detectable and no gas leak occurs. If the gas leak detector 10 determines that the gas leak detector 10 is in an abnormal state (gas leak state), the DC voltage output unit 12 outputs a constant voltage value of, for example, 12V. Also in this case, if the length of the signal line connecting between the two before reaching the house information panel 20 is long, the voltage level of 12 V may attenuate before being detected by the gas detection circuit unit 25. In preparation for this, the DC voltage output unit 12 outputs 12 V from the DC voltage output unit 12 if the voltage is detected in a level range of, for example, 8 V ≦ E.
Is assumed to have been output. Then, the gas detection circuit unit 25 informs the CPU 24 of an abnormal state in which gas leakage has occurred. At this time, the CPU 24 causes the alarm sound generation unit 21 to emit an alarm sound (for example, an intermittent sound) at substantially the same time. Then, the gas leak display circuit section 22 is caused to perform, for example, blinking display, which means that the gas leak display circuit section 22 is in an abnormal state (gas leak state). Further, the CPU 24 transmits, via the transmission circuit unit 26, to the alarm monitoring panel 30, which is the master unit of the house information panel 20 shown in FIG. 2, to notify that it is in an abnormal state (gas leak state).

The CPU 24 includes a gas detection circuit 25
If the voltage value E detected in the step is in a level range of 0V ≦ E <4V, it is determined that the connection between the housing information panel 20 and the gas leak detector 10 is disconnected or there is a possibility of disconnection, and an alarm sound is issued. At about the same time as generating an alarm sound (for example, a continuous sound) different from that in the abnormal state (gas leak state) in the generation unit 21,
For example, the gas leak display circuit section 22 is turned on to indicate that it is disconnected. Further, the CPU 24
The information is transmitted to the alarm monitoring panel 30, which is the master unit of the house information panel 20, via the transmission circuit unit 26, to notify that the wire is disconnected.

The operation of the thus constructed house information panel will be described below with reference to FIGS. 3 and 4.

The CPU 24 of the house information panel 20 reads the input voltage value E from the gas leak detector 10 by the gas detection circuit unit 25 (step 100), and the read voltage value E is within a level range of 0V ≦ E <4V. If there is, the output voltage value from the gas leak detector 10 is continuously read until the input voltage value E from the gas leak detector 10 is switched to a voltage value of 4 V or more which is a signal of a predetermined level or more (section in FIG. 4). A). Next, the CPU 24 operates the gas leak detector 1
When the voltage value detected at 0 is switched to 4 V or more (section B in FIG. 4), the gas leak detector 10 switches the housing information panel 20
Is connected, and it is determined that the gas leak detector 10 is turned on and gas leak can be detected (step 200). That is, as in step 200, the housing information panel 20, which is a variety of devices, is provided from the beginning of the operation at the beginning of the operation when the detection of only an output below a predetermined level of, for example, 4 V does not indicate that a disconnection has occurred. Judgment means 2
7 is provided.

Subsequently, the CPU 24 further determines whether or not there is gas leakage (step 21).
0), if the gas detection circuit unit 25 detects a voltage in the level range of 8V ≦ E ≦ 12V, the CPU 24 determines that the gas leak has occurred, and causes the alarm sound generation unit 21 to emit an intermittent sound. Then, the gas leak display circuit section 22 is caused to perform blinking display. Further, the CPU 24 transmits the information to the alarm monitoring panel 30 which is the master unit of the house information panel 20 via the transmission circuit unit 26 to notify that it is in an abnormal state (gas leak state) (step 300 and FIG. 4). Section C).

If the gas detection circuit unit 25 detects a voltage in the level range of 4 V ≦ E <8 V in the above step 200, the CPU 24 determines that there is no gas leakage and is in a normal state. The gas detection circuit unit 25 reads the output voltage value from the gas leak detector 10 (Step 400). In this detection state, the CPU 24
It will be possible to determine whether or not a disconnection state has occurred. That is, the CPU 24 determines that the gas detection circuit section 25 has 8V ≦ E ≦ 1
When the voltage is detected in the level range of 2 V, the above step 30 is performed.
The same process as 0 is performed, and it is determined that the state is normal until the voltage is detected in the level range of 0V ≦ E <4V (steps 500 and 600, and section D in FIG. 4). If the voltage range detected by the gas detection circuit unit 25 is 4V ≦
If the level falls from the level range of E <8 V to the level range of 0 V ≦ E <4 V, the CPU 24 determines that the connection between the house information panel 20 and the gas leak detector 10 is disconnected or that there is a risk of disconnection. I do. The CPU 24 determines that the electrical connection has been disconnected from the state where the normal state or the abnormal state (gas leak state) has been detected until then, and the state has been switched to the disconnection state (section E in FIG. 4). . That is, as in step 600, the housing information panel 20, which is a variety of devices, includes an output of, for example, a predetermined level of, for example, 4V from the beginning of operation, and then detects an output of less than the predetermined level. The disconnection determination means 28 for notifying as a disconnection for the first time is provided. In the disconnection state, the CPU 24 causes the alarm sound generation unit 21 to emit a continuous sound, and
2 is lit. Further, the CPU 24 transmits the signal to the alarm monitoring panel 30 which is the master unit of the house information panel 20 via the transmission circuit section 26, to notify the disconnection state (step 700).

Therefore, even if a voltage value E which is less than a predetermined level indicating a normal state, that is, less than 4 V, is detected from the beginning of the operation to the various devices exemplified as the house information panel 20, it is not notified that a disconnection has occurred. Since the determination means 27 and the disconnection determination means 28 for notifying the disconnection for the first time when the output below the predetermined level is detected after once detecting the voltage value E equal to or higher than the predetermined level, that is, 4 V or higher, are provided. Gas leak detector 1 equivalent to connected equipment
The disconnection of the electric circuit exemplified by the signal line L between 0 and 0 can be detected, and the alarm can be prevented from being issued even if the disconnection state occurs from the beginning of the power supply.

Further, since the house information panel 20 does not issue a warning even when the power supply is turned on even if it is disconnected, it is not necessary to incorporate a setting switch such as a mode switching dip switch for preventing the warning. A space for putting a finger inside the house information panel for operating a simple setting switch is not required, and the size of the house information panel can be reduced.

In the above embodiment, the normal state is defined by the voltage level range of 4V ≦ E <8V, and the abnormal state (gas leak state) is defined by the voltage level range of 8V ≦ E <12V. However, the present invention is not limited to this, and the normal state may be defined by a voltage level range of 8V ≦ E <12V, and the abnormal state (gas leak state) may be defined by a voltage level range of 4V ≦ E <8V. .

Further, in the above-described embodiment, assuming an apartment house such as an apartment, a device corresponding to a connected device is illustrated as a gas leak detector 10 and a device corresponding to various devices is illustrated as a house information panel 20. However, the present invention is not limited to this, and may be applied to any device as long as it is necessary to prevent false alarms when connecting a connected device to various devices. For example, a device corresponding to the connected device may be a fire alarm, and a device corresponding to various devices may be a security monitor or a fire monitor connected to the fire alarm.

Further, it is needless to say that the disconnection notification method in the above embodiment can be applied to disconnection detection between communication terminals.

[0034]

According to the first aspect of the present invention, if only an output below a predetermined level is detected from the beginning of the operation, an output above a predetermined level is detected once without reporting that a disconnection has occurred. Since the disconnection notifying method is characterized in that the disconnection is notified for the first time when the output below the predetermined level is detected, disconnection of the electric circuit between the connected device and various devices can be detected, and the disconnection can be performed. It is possible to provide a disconnection notifying method that does not require an operation unit for responding to a case where the detection function is not required, and that does not make an erroneous determination even when the disconnection state has occurred since the power was turned on.

According to the second aspect of the present invention, the various devices include an operation start initial determination unit that does not notify a disconnection if only an output below a predetermined level is detected from the start of operation, The disconnection determination means for notifying the disconnection for the first time when an output of less than a predetermined level is detected after the output is once detected is provided, so that it is easy to use and can be configured at a low cost, and there is no need for a space for an extra operation unit and the like. And miniaturization can be achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an apparatus having a disconnection notification function according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a system configuration constructed using an apparatus having a disconnection notification function according to the first embodiment;

FIG. 3 is an explanatory diagram showing a control flow in the device having the disconnection notification function according to the first embodiment.

FIG. 4 is a state transition diagram illustrating disconnection notification of the apparatus having the disconnection notification function according to the first embodiment.

FIG. 5 is an explanatory diagram of a system configuration constructed using a conventional apparatus having a disconnection notification function.

FIG. 6 is a block diagram illustrating an apparatus having a disconnection notification function according to the embodiment.

FIG. 7 is a state transition diagram illustrating disconnection notification of the apparatus having the disconnection notification function according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Connected apparatus 20 Various apparatuses 27 Operation start initial judgment means 28 Disconnection judgment means L Electric circuit

Claims (2)

[Claims] 1. A disconnection notification method for various devices connected via a power line to a connection device that outputs an output of a predetermined level or more during normal operation, wherein only an output below the predetermined level is detected from the beginning of operation. If not, it is not notified that the wire is broken, but is notified only once when the output below the predetermined level is detected after the output above the predetermined level is detected once, and then the disconnection is reported. Method. 2. A device which is connected via a circuit to a connection device which outputs at or above a predetermined level during normal operation, and disconnects if only an output below the predetermined level is detected from the beginning of operation. It is characterized in that it is provided with an operation start initial determination means that does not notify, and a disconnection determination means for notifying as a disconnection only when an output below the predetermined level is detected after once detecting an output above the predetermined level. And various devices.