JPH05300646A - Dc-driven alarm unit - Google Patents

Abstract

PURPOSE:To provide an alarm unit which can be installed to any place without being limited to a specific location, such as inside a house, etc., provided with a receptacle, etc., for power supply, can be utilized for the prevention of crimes at any places, and can be operated easily without requiring re-inputting of data whenever the power supply to the unit is cut off. CONSTITUTION:The title unit A is an alarm unit which is constituted so that the unit A can issue a prescribed alarm when an external burglar sensor 10 detects abnormality and provided with a backup power source 9 for backing up the power supply to the unit A. At the same time, the unit A is constituted in such a way that the unit A can be driven with a DC current from the outside, but, when the DC power supply from the outside is cutoff, the unit A can be driven with the electric power supplied from the power source 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm unit applied to issue an alarm when the door is opened improperly, and more particularly to a novel type DC drive driven by DC current. Formula alarm unit.

[0002]

2. Description of the Related Art Conventionally, as an alarm unit for issuing an alarm when an abnormality occurs, not only a crime prevention monitoring function but also various types of information monitoring functions such as fire occurrence and gas leakage occurrence are added. Things have been developed and proposed,
Each of the alarm units is of a relatively large size and is fixedly installed at a suitable place in the room. As the power source, it is common knowledge that a household AC power source is used for reasons such as easiness of power supply and economy, and therefore, the conventional alarm units have AC drive type specifications. Was becoming. Further, the conventional alarm unit has no power supply backup function.

[0003]

In the above-mentioned prior art, the installation location of the alarm unit is limited to a specific place such as a house where a commercial AC power source can be connected by wiring, and it is difficult to supply the AC power to the alarm unit. Since it cannot be applied to crime prevention in a vehicle by being installed in a vehicle, its use is narrowly limited and lacks flexibility in use. In addition, since the conventional type does not have a backup function for the power supply, once the power is turned off when changing the installation location of the alarm unit, various data registered in the alarm unit will be lost and It became necessary to re-enter the necessary data, which made it inconvenient to handle.

The present invention has been proposed in view of the above points, and the installation location is not limited to a specific location such as a house equipped with a power outlet and the like, and is used for crime prevention in various other locations. It is an object of the present invention to provide an alarm unit which can be operated and does not require re-input of data each time the power is cut off.

[0005]

SUMMARY OF THE INVENTION The present invention as set forth in claim 1, which is proposed to achieve the above object, issues a predetermined alarm when an abnormality is detected by an external security sensor. A configured alarm unit,
A backup power supply for backing up the power supply of the alarm unit is provided, and the alarm unit is driven by the direct current power supply, and when the power supply from the outside is stopped, the backup power supply supplies the power. It is a DC drive type alarm unit configured as described above. In the alarm unit of the DC drive type according to the present invention as defined in claim 2, the backup power source is a rechargeable battery.

According to a third aspect of the present invention, there is provided a DC drive type alarm unit according to the first or second aspect, which includes a switch for setting a warning mode and a key operation section having a ten-key pad. The delay time from the operation of the switch for setting the warning mode to the setting of the warning mode can be set to a desired value by operating the ten keys.

According to another aspect of the present invention, there is provided a DC drive type alarm unit according to the present invention.
The delay time from when an abnormality is detected by the security sensor to when the alarm is issued can be set by inputting the ten keys,
When a preset personal identification number is input by ten-key operation within the delay time after the abnormality is detected by the security sensor, the alarm is not issued.

[0008]

In the alarm unit of the DC drive type according to the present invention having the above-mentioned structure, since it can be driven by the power supply from the DC power supply or the backup power supply, a place where commercial AC power supply is difficult, That is, for example, even in an automobile, the crime prevention function can be exerted by using the battery power source of the automobile or the backup power source provided in the alarm unit, and the unauthorized opening of the automobile door, etc. Can be used to issue a notification to. Note that commercial AC current is AC / DC
Since it is possible to easily convert into a direct current of a desired voltage by using a converter or the like, the alarm unit according to the present invention can be appropriately used even with an alternating current power supply. Further, when the power supply from the outside is cut off, the power supply is backed up by the backup power supply, so that there is no fear that the data input and registered by then will be inadvertently deleted. Becomes

In the DC drive type alarm unit according to the third aspect of the present invention, after the switch operation for setting the alarm mode is performed, the crime prevention is performed, for example, by opening the door having the crime prevention sensor attached. Even if the sensor detects an abnormality, if the door opening timing is within a predetermined delay time, no alarm is issued. Therefore, even if the alarm unit is installed indoors, the user
You can go outside without generating unnecessary alarms. Since the delay time can be set to a desired value by operating the ten-key pad, the delay time can be set according to the user's request, and the generation of unnecessary alarms can be appropriately prevented.

In the alarm unit of the DC drive type according to the present invention as set forth in claim 4, in the alarm mode state,
For example, even if the security sensor detects an abnormality such as opening the door to which the security sensor is attached, if the proper security code input operation is performed within the predetermined delay time, no alarm is issued. Therefore, even when the user installs the alarm unit indoors and goes out, the user can enter the room and cancel the warning mode without generating an unnecessary alarm. Since the delay time can be set to a desired value by the ten-key operation, the delay time can be set according to the user's request, and unnecessary alarm can be appropriately prevented. Since an outsider who does not know the personal identification number cannot cancel the warning mode, an alarm can be appropriately generated for an unauthorized opening of the door by the outsider.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing an example of a hardware configuration of a DC drive type alarm unit A according to the present invention, FIG.
FIG. 3 is a front view showing an example of the appearance of the alarm unit A. This alarm unit A is provided with a key operation unit 2 including a numeric keypad and other switches described later, a red ON LED 3a as a light emitting LED, a green OFF LED 3b, and the like on the surface of a small housing case 1. There is.

Inside the housing case 1, a C
A signal processing unit 4 configured by a PU or the like is provided, and the signal processing unit 4 is a storage unit serving as a system memory configured by a ROM or a RAM in addition to the light emitting LEDs 3a and 3b and the key operation unit 2. 5, a timer circuit 6, and a sound signal generation circuit 8 for operating a speaker 7 for generating an alarm are connected. Each of the electric circuit sections such as the signal processing section 4 can be driven by a direct current of, for example, 12V to 24V, and power can be externally supplied to each of these sections via the power supply connection terminal T1. Has been done.

A battery as a backup power source 9 is also built in the housing case 1. A rechargeable battery is applied as the battery, and is charged when the external power supply is connected to the power supply connection terminal T1. Then, when the voltage on the backup power supply 9 side becomes higher than the input voltage to the power supply connection terminal T1 due to, for example, the power supply from the external power supply being stopped, the power supply from the backup power supply 9 to each of the circuits is performed. Is configured to be done.

At an appropriate position on the side surface of the housing case 1, in addition to the power supply connection terminal T1 described above, the security sensor 1
A connection terminal T2 for wire-connecting 0, an additional input terminal T3, and the like are also provided. The security sensor 10 may be, for example, a reed switch that performs an on / off switching operation by contacting / separating with a magnet, a variety of proximity switches different from this, or a simple mechanical pressing operation to perform an on / off switching operation. It is also possible to apply switches that only perform an operation, and either a switch that performs a switching operation when an abnormal situation occurs or a switch that transmits a specific signal may be used.

As shown in FIG. 2, the key operation section 2 is provided with a cancel / on switch 2b and a set / off switch 2c in addition to the ten-key 2a. Of these, one of the cancel / on switches 2b has both a function for setting the alarm unit A in the warning mode and a function as a cancel switch for canceling the data input by the ten-key pad. On the other hand, the other setting / off switch 2c functions as a setting switch for inputting various data in a state where the warning mode is not set. It should be noted that each switch of the key operation unit 2 is configured to generate a short touch sound at the time of its operation and, at the time of an error input, generate an error sound for notifying it.

The signal processor 4 performs the following control when the cancel / on switch 2b is operated.
That is, the signal processing unit 4 does not immediately switch to the warning mode when the cancel / on switch 2b is operated, but first flashes the ON LED 3a and simultaneously activates the timer circuit 6 to set a preset value. When the predetermined delay time has elapsed, the mode switches to the warning mode. At the same time, the blinking of the ON LED 3a is terminated and the timer circuit 6 is reset. Before switching to the warning mode, even if the security sensor 10 causes a predetermined switching operation to detect an abnormality, the alarm is not sounded. Further, after the shift to the caution mode, even if the security sensor 10 detects an abnormality, the alarm circuit does not sound immediately but the ON LED 3a blinks and at the same time the timer circuit 6 is activated. Then, when a preset predetermined delay time has elapsed, the sound signal generating circuit 8 is activated to control the speaker 7 to output an alarm sound for alarm. However, the signal processing unit 4 uses the security sensor 1
When 0 is detected as an abnormality and a pre-registered personal identification number is keyed in within a predetermined delay time, the alarm is controlled not to ring.

Further, the signal processing unit 4 is configured to exert the functions of registering and changing the personal identification number and setting the delay time except in the above-mentioned warning mode. That is, setting / off
When the switch 2c is operated, the mode is shifted to the delay time setting mode, and in this state, the desired value is input with the ten-key 2a, and then the setting / off switch 2c is operated again, the data is confirmed, Control is performed so that this data is registered as a delay time in the RAM of the storage unit 5. As the delay time in the present invention, the delay time from the operation of the other cancel / on switch 2b to the shift to the warning mode and the delay from the detection of an abnormality by the security sensor 10 to the alarm sounding There are two types, time
Although it is possible to set these times individually, in the present embodiment, these two types of delay times are configured to be the same time. Therefore, the delay time setting operation may be performed once.

The signal processing unit 4 has a function of registering a personal identification number.
Is an off mode state in which a secret code is enabled by inputting a predetermined signal or current from the extension input terminal T3. In such an off mode state, the ten key operation and the operation of the setting / off switch 2c are performed. Then, the four-digit data input by the ten key is controlled to be registered in the RAM of the storage unit 5 as a personal identification number. However, there is a time limit (for example, 10
Second) is provided, and if all four-digit PINs are not entered within the time limit, an error will occur,
It is configured so that the personal identification number cannot be registered. Also,
The signal processing unit 4 has the function of changing the registered personal identification number.
Is a mode in which a new password can be registered when the password is keyed in and the cancel / on switch 2b is operated when the security mode is not set,
After that, when a desired personal identification number is input by the ten-key operation, it is controlled so as to be registered in the RAM of the storage unit 5 as a new personal identification number.

Next, a usage example of the alarm unit A,
And the operation will be described. First, since the alarm unit A has a DC power supply specification, a DC power supply 11 as shown in FIG. 1 is used as its power supply, and an AC / DC converter 13 is used as the AC power supply 12 for use. it can. Therefore, the alarm unit A can be driven by using the power supply unit of the cigarette lighter of the automobile or the like in addition to the power supply from the household outlet. In the case of mounting in a car, by mounting the security sensor 10 on the car door, an alarm alarm can be sounded when the door is opened improperly, and the effect of preventing theft during parking can be obtained. Further, even if the power supply from the external power supply is impossible, the backup power supply 9 can drive the alarm unit A. Therefore, the installation location of the alarm unit A is not affected by the presence or absence of an external power source, and the alarm unit A can be installed in various locations and used for various crime prevention applications.

When the alarm unit A is set in the warning mode and is actually used, it is necessary to register in advance a secret code number for canceling the warning mode, a delay time for alarm generation, and the like. The setting of the delay time is as shown in FIG.
As shown in steps 100 to 103 of the flowchart of FIG. 10, the setting / off switch 2c and the numeric keypad 2a can be operated. However, the delay time can be set to an arbitrary time by inputting the numeric keypad, depending on the usage conditions of the alarm unit A and the like. Therefore, it is possible to set an optimum delay time.

In addition, as shown in steps 200 to 213 of the flow chart of FIG. 4, the personal identification number is registered by entering a four-digit number with the numeric keypad 2a in the OFF state set by the extension input to the extension input terminal T3. After entering, set /
This can be done by operating the off switch 2c.
The registration of such a personal identification number causes an error unless the operation is completed within a certain time limit, so that it is possible to prevent the unauthorized identification number registration by an outsider. Then, when it is desired to use a new personal identification number different from the personal identification number thus registered, steps 300 to 30 in the flowchart of FIG.
The predetermined procedure shown in 8 may be executed, but the registration of the new personal identification number can be done only by the person who knows the present personal identification number. Therefore, it is possible to prevent an unauthorized person from unintentionally changing and registering the personal identification number. In addition, the RA of the storage unit 5 for storing the data such as the above-mentioned personal identification number and delay time.
Since M is backed up by the internal backup power supply 9, there is no risk of losing its data even when the power supply from the outside is stopped.

Next, when the alarm unit A is used in the warning mode, the cancel / on switch 2b may be operated in the off state after setting the above items. However, such a switch operation does not immediately shift to the warning mode, and the warning mode is set only after the preset delay time is measured by the timer circuit 6. Therefore, if the user operates the alarm unit A in the room (or inside the vehicle) and then opens the door to which the security sensor 10 is attached and quickly exits, the alarm will be released as long as the door opening time is within the delay time. Alarm does not sound.

Further, in the warning mode, the alarm does not sound immediately even if the door to be detected is opened, and if the personal identification number is input with the ten-key 2a within a predetermined delay time after the door is opened. , The alert mode is canceled and the alarm alarm can be stopped. Therefore, if the user opens the door and enters the room (or gets into the vehicle) and then quickly performs the ten-key operation, it is possible to prevent the generation of an unnecessary alarm and prevent a malfunction. On the other hand, an outsider who does not know the personal identification code cannot prevent the alarm from being issued, and therefore an alarm for an alarm sounds when a predetermined delay time elapses after the door is opened, and an appropriate crime prevention function is exerted. The above-mentioned delay time can be set to an arbitrary time in advance by operating the numeric keypad, so the delay time should be taken into consideration by taking into consideration various factors such as the shortest time from the opening of the door to the completion of the operation of inputting the specified personal identification number. Just set it. Steps 400 to 412 of the flow chart of FIG. 6 show the operation procedure of the series of alarm units.

[0024]

As can be understood from the above description, according to the DC drive type alarm unit according to the present invention described in claims 1 to 4, the place where the alarm unit is mounted is the AC power source as in the conventional case. The present invention is not limited to the supply place, but it can be applied to other crime prevention applications such as in automobiles and the like, and is highly versatile, and the particular use effect can be expanded. In addition, even if the external power supply is cut off, the problem that the data registered in the alarm unit is erased unnecessarily can be solved, and the trouble of re-inputting data becomes unnecessary, which makes it convenient to use. There are also real benefits that can be increased.

In particular, according to the present invention, the power consumption of the backup power source can be eliminated by charging the rechargeable battery while the alarm unit is being driven by the external power source. It is convenient.

According to the present invention as set forth in claim 3, the user operates the switch for setting the alarm unit installed in the room to the warning mode, and then opens the door to which the security sensor is attached and goes out. Also, if the delay time is within the predetermined delay time, the alarm is not issued, and needless to say, it is possible to prevent unnecessary notification when the warning mode is set. Since it can be set, there is an effect that the delay time convenient for the user can be set according to the specific usage conditions of the alarm unit.

Further, according to the present invention as set forth in claim 4, even when the user opens the door to which the security sensor is attached and enters the room in the alert mode, if the delay time is still within the predetermined delay time, the personal identification number It is convenient that unnecessary alarms can be prevented by operating the key of the above, and the delay time is also convenient.
Similarly to the case of (1), since the user can arbitrarily set in advance by ten-key input, it is convenient because the delay time convenient for the user can be set according to the usage conditions of the alarm unit.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a hardware configuration of a DC drive type alarm unit according to the present invention.

FIG. 2 is a front view showing an example of an external appearance of a DC drive type alarm unit according to the present invention.

FIG. 3 is a flowchart showing an example of an operation procedure when setting a delay time.

FIG. 4 is a flowchart showing an example of an operation procedure when registering a personal identification number.

FIG. 5 is a flowchart showing an example of an operation procedure when changing a personal identification number.

FIG. 6 is a flowchart showing an example of a series of operation procedures when used in the alert mode.

[Explanation of symbols]

 2 Key operation part 2a Numeric keypad 2b Cancel / on switch 2c Setting / off switch 3a On LED 3b Off LED 4 Signal processing part 5 Storage part 6 Timer circuit 7 Speaker 8 Sound signal generating circuit 9 Backup power supply 10 Security sensor 11 External DC power supply A DC drive type alarm unit

Claims (4)

[Claims] 1. An alarm unit configured to issue a predetermined alarm when an abnormality is detected by an external security sensor, the backup unit including a backup power supply for backing up the power supply of the alarm unit. Along with the above, the alarm unit is driven by power supply of direct current, and when the power supply from the outside is stopped, power is supplied from the backup power supply. Alarm unit. 2. The alarm unit of DC drive type according to claim 1, wherein the backup power source is a rechargeable battery. 3. The alert mode according to claim 1, further comprising a switch for setting the alert mode and a key operation unit having a ten-key pad, and the switch for setting the alert mode is operated before the alert mode is set. A DC drive type alarm unit characterized in that the delay time up to this time can be set to a desired value by operating the ten-key pad. 4. The delay time from the detection of an abnormality by the security sensor to the issuance of an alarm can be set by a ten-key operation, and within the delay time after the abnormality is detected by the security sensor. In addition, a DC drive type alarm unit is characterized in that an alarm is not generated when a preset personal identification number is input by ten-key operation.