JPH02305265A - Controller - Google Patents

Abstract

PURPOSE:To attain long period operation for a controller with a very small capacity of battery by providing a control means switching a line from a telephone set side to a DC loop circuit section side when a sensor detects a fault and sending security information to a preset opposite party automatically. CONSTITUTION:Suppose that a gas leakage sensor 26 detects a fault, its output voltage changes from a DC 6V at normal state into 12V. A sensor alarm detection section 24 detects the change and sends a fault signal to a main control section 22. On the other hand, the main control section 22 sends a dial signal DP to a dial pulse generating section 17 to apply automatic dial to the opposite party information monitor center). The dial pulse is sent to a line via a rectifier bridge 16 and relay contacts ry1, ry2. When the opposite party replies the pulse and the reply is received by a data transmission reception section 19, the information such as security information fetched via the sensor alarm detection section 24 by the main control section 22 is sent to a data transmission reception section 19, converted into an analog signal and sent to the line.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a controller for automatically reporting various types of security information generated within a dwelling unit to a remote information monitoring location via a telephone line.

Conventional technology Various sensors (fire detection, gas leak detection, forgotten locks, etc.) are installed inside the dwelling, and the output of these sensors can be sent as security information to a telephone line and received at a remote information monitoring center. A security system has been put into practical use that can detect abnormalities that occur within a residential unit.

FIG. 2 is a block diagram showing an example of such a security system.

A controller 2 to which various sensors 3 (gas leak detection, etc.) are connected is installed in the dwelling unit 1. A telephone m4 connected to an outside line, a gas meter 5, and a safety device 6 are each connected to the controller 2. An exchange 8 is connected to the protector 6 via a telephone line 7a, and this exchange 8
A receiving device 10 in the information monitoring center 9 is connected to the information monitoring center 9 via a telephone line 7b. A host computer 1 is connected to the receiving device 10.

In the above configuration, when the sensor 3 detects an abnormality such as a gas leak, the controller 2 receives the sensor 3, confirms that the telephone 4 is not in use, and then automatically is connected to the telephone port vA1a, and the exchange 8 is called. The called exchange B calls the receiving device 10, which is the designated destination, via the telephone line 7b, and
If 0 corresponds, the security information or the checkup information of the gas meter 5 is transmitted to the host computer 11 via the receiving device 10. The host computer 11 processes the acquired information and issues an alarm to the monitor if the information is security information. This allows the inspector to rush to the responding residence and take necessary action.

The controller 2 used in such a system is often installed indoors because the sensor 3 is installed indoors. In addition, the power source is commercial power (100V
) and is equipped with a built-in battery in case of power outages.

Problems to be Solved by the Invention However, when the controller 2 is installed indoors, the construction takes time, the indoor wiring is exposed on the wall, spoiling the aesthetics, and construction cannot be carried out when the user is not present. ,
Furthermore, there is a problem that an AC power source is required for the controller.

On the other hand, if the controller 2 is installed indoors, it will have to be installed on the wall under the eaves due to constraints such as environmental conditions.
If connection with the gas meter 5 is set as one of the conditions, it is necessary to satisfy the conditions that automatic meter reading is performed and that the meter can be operated on battery power for 7 years during the temperature measurement period, which is a big constraint.

In order to operate the controller 2 for a long period of time using only batteries, it is necessary to increase the power supply voltage and select a controller with a large capacity in order to reduce current consumption, which leads to an increase in battery size and cost.

The present invention solves the conventional problems as described above.
The object of the present invention is to provide a controller that can operate for a long period of time using only an extremely small capacity battery.

Means for Solving the Problems In order to solve the above problems, the present invention includes a data transmitting/receiving unit that acquires security information from a sensor installed in the house and transmitting it to a line, and a data transmitting/receiving unit that transmits security information to a line at a predetermined time between the data transmitting/receiving unit and the line. A DC loop circuit unit that is connected to form a DC loop, and a station power conversion unit that supplies the voltage obtained by converting the line voltage to the data transmitter/receiver unit as a power source when the DC loop circuit unit forms a DC loop. a sensor voltage conversion regulator section that uses the monitoring voltage of the sensor to create a voltage equivalent to a battery that supplies power to each circuit other than the data transmission/reception section; The system is equipped with a control means that switches the line from the telephone side to the DC loop circuit side when the telephone is not in use, and automatically sends the security information to a preset destination.

Effects Therefore, according to the present invention, 1. The voltage generated in a DC loop circuit connected when transmitting security information is converted (for example, D (, -DC conversion)), and the converted voltage is supplied as a power source to the data transmitting/receiving section that consumes the highest power.

Further, the monitoring voltage of the sensor is converted by a sensor voltage conversion regulator, and this voltage is connected in parallel to the output of the battery to reduce the amount of battery discharge. Therefore, it is no longer necessary to supply power from the battery to the data transmitting/receiving section, and the battery is supplemented by the sensor voltage conversion regulator, so the battery capacity can be reduced. Since the capacity is small, the battery will inevitably be small.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

FIG. 1 is a circuit diagram showing a controller in an embodiment of the present invention.

In FIG. 1, reference numeral 13 denotes a telephone set for making calls, which is connected to an incoming signal detecting section 14 that detects an incoming signal from a line via an off-footer detecting section 15 that detects an off-hook state. A rectifying bridge 16 that keeps the polarity of the line constant through relay contacts rV+ and I'3'z, and a terminal to which the line is connected are selectively connected to the incoming signal detection unit 14 and the off-footer detection unit 15. There is.

A secondary DC loop transformer 8 is connected to the rectifier bridge 16 via a dial pulse generator 17 to form a DC loop for the line, and this DC loop transformer 18 converts security information from digital to analog. A data transmitting/receiving section 19 is connected which converts and outputs analog signals from the line into digital signals. Reference numeral 20 denotes a station power converter that converts the power at the time of line closure into DC and supplies it to the data transmitter/receiver 19, and is connected to the input side of the DC loop transformer 18 and the data transmitter/receiver 1.
9 is connected.

Reference numeral 21 denotes a relay to which the relay contacts ry and rYz are attached, and is driven by a transistor 31 controlled by the main control section 22. , 22 is a main control unit including a CPU, and on its input side there are an off-hook detection unit 15, an incoming signal detection unit J4, and a data transmission/reception unit 19.
, a station power conversion section 20, a sensor detection section 23, a sensor alarm detection section 24, and a battery voltage detection section 29 are connected to each other. Furthermore, the dial pulse generator 17 and a transistor 30 and a transistor 31 controlled by the main controller 22 are connected to the output side of the main controller 22, respectively.

The sensor alarm detection section 24 generates an alarm signal based on the detection signal of the gas leak sensor 26 and outputs it to the main control section 22 . 25 is a sensor voltage conversion regulator;
The output voltage of the gas leak sensor 26 is converted to create the circuit supply voltage V2. 28 is the battery from the V2 line (
This is a diode that prevents backflow to the BAT) 27. Battery voltage detection section 29 detects the voltage of battery 27 and outputs the detected value to main control section 22 .

The operation of the above configuration will be described below.

If the gas leak sensor 26 detects an abnormality, its output voltage changes from the normal 6V DC to 12V. This change sensor alarm detection section 24 detects and sends an abnormal signal to the main control section 22. Upon receiving this, the main control unit 22 determines that the output signal R1 of the incoming signal detection unit 14 and the output signal H00K of the off-hook detection unit 15 are not generated (that is, the telephone 13 is in an unused state), and then the transistor 3
1, and the relay 21 is energized.

This causes the relay 21 to set the relay setting r)'+, rV
z is switched to the rectifier bluff 16 side, the rectifier bridge 16, the diamond pulse generator 17, and the DC loop transformer are connected to the line, and a DC loop current is passed through the line. When the line is connected to the DC loop transformer 8, a terminal voltage is generated, and the voltage is rectified and converted by the local power converter 20 to generate the output voltage (1).

On the other hand, the main control section 22 sends a dial signal DP to the dial pulse generation section 17 in order to automatically dial the destination (information monitoring center). The dial pulse is sent to the line via the rectifier bridge 16 and relay contacts ry1, ry2.

When the other party responds and the response is received by the data transmitting/receiving section 19, the security information etc. taken in by the main control section 22 via the sensor alarm detecting section 24 is sent to the data transmitting/receiving section 19 and converted into an analog signal. After being converted, it is sent out on the line.

When the transmission of the security information is completed, the main control unit 22
turns off the relay 21 (de-energized state), switches the relay settings r'3'+ and r'3'z to the incoming signal detection section 14 and off footer detection section 15 side as shown in FIG. 1, and turns off the station power supply. The line voltage is not applied to the converter 20.

As a result, voltage (1) disappears.

Note that the voltages supplied to the data transmitter/receiver 19 are
) is generally the voltage V2 supplied to other circuits.
(3V). In addition, the current consumption is
The current consumption of the data transmitter/receiver 19 is several tens of μA, whereas the current consumption of the other circuits excluding the data transmitter/receiver 19 is approximately several tens of microamperes.
High grade A. Therefore, if it is to be constantly supplied from the pantry 27, it is necessary to increase the battery voltage and reduce the current value in order to reduce current consumption. As a result, in order to ensure a battery life of several years, including the number of calls and current during calls, the size of the device becomes extremely large.

However, according to the present invention, when the line is connected, the power of the line is borrowed by the station power converter 20 and supplied to the data transmitter/receiver 19, which consumes the most power, thereby making it possible to use a small battery 27 with a small capacity. It becomes possible. Even if the line voltage is not applied to the station power converter 20, the abnormal signal LV is taken into the main controller 22,
Based on this, the transistor 30 is turned on and the voltage of the battery 27 is supplied to the data transmitter/receiver 19.
The controller 12 can be operated normally. Further, since the sensor voltage change regulator 25 obtains V2 (set higher than the battery voltage 3) from the output voltage of the gas leak sensor 26, it is possible to suppress the discharge from the battery 27 to the minimum ratio.

As described above, by providing the station power converter 20 and the sensor voltage conversion regulator 25, the battery 27
discharge can be minimized. Therefore, it is possible to use a small battery 27 with a small capacity. For example, suitable for this purpose:
There are lithium batteries with low self-discharge and long life.

Effects of the Invention As described above, according to the present invention, a data transmitting/receiving unit that acquires security information from a sensor installed in the house and transmitting it to the line, and a data transmitting/receiving unit that is connected at a predetermined time to the line of the data transmitting/receiving unit and transmitting it to the line. a DC loop circuit unit that forms a DC loop; a station power conversion unit that supplies a voltage obtained by converting a line voltage to the data transmitting/receiving unit as a power source when the DC loop circuit unit forms a DC loop; A sensor voltage conversion regulator section that uses the monitoring voltage of the sensor to create a voltage equivalent to a battery that supplies power to each circuit except the data transmission/reception section, and a sensor voltage conversion regulator section that uses the monitoring voltage of the sensor to generate a voltage equivalent to a battery that supplies power to each circuit except the data transmission/reception section. Therefore, since a control means is provided to switch the line from the telephone side to the DC loop circuit side and automatically send the security information to a preset destination, the battery capacity and size can be reduced. This makes it possible to save space and reduce costs.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a controller in an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a security system. 1...Inside home, 9...Information monitoring center, 12...Controller, 13...Telephone, 15...Off-hook detection section, 16 ...
... Rectifier bridge, 11 ... Dial pulse generator, 18 ... DC loop transformer, 19
...Data transmitting and receiving unit, 20...Station power converter, 21...Relay, 22...Main control unit, 24...Sensor Alarm detection unit, 25...
...Sensor electric conversion regulator, 26...
Gas leak sensor, 27...Battery, ry+
+r3'2...Relay contact.

Claims (1)

[Claims] A data transmitting/receiving unit that acquires security information from a sensor installed in the house and transmitting it to the line, a DC loop line unit that is connected at a predetermined time between the data transmitting/receiving unit and the line to form a DC loop, and this DC loop circuit. a station power converter that converts the line voltage to the data transmitter/receiver and supplies the resulting voltage as a power supply when the data transmitter/receiver forms a DC loop; A sensor voltage conversion regulator section that creates a voltage equivalent to the battery that supplies power to the circuit, and when the above sensor detects an abnormality and the telephone is not in use, the above line is connected from the telephone side to the above DC loop circuit section side. A controller characterized by comprising a control means for automatically transmitting the security information to a preset destination.