JPS581294A - Conservation of power consumption - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to reduce the power consumption of electrically operated devices.

BACKGROUND ART Recently, systems have been developed that detect the occurrence of a fire or the presence of an intruder in each residence, make an emergency report in the event of a fire, and monitor the inside of the residence.

This system includes controllers, various transmitters, buzzers, -boxes, -switch boxes, and dialers installed in each house, and receives signals from the dialers to determine whether there is a fire or an intruder. It consists of a receiver at the security center, and signals are sent and received between the controller and dialer using wired signal transmission, and signals are sent and received between various transmitters and controllers using weak radio waves. Signal transmission and reception between the dialer and the buzzer box and switch box is carried out by signal transmission using a power line, and signal transmission and reception between the dialer and the receiver at the security center is carried out by a general subscriber line. Therefore, installation work can be carried out easily.

Monitoring for disaster prevention, crime prevention, etc. is carried out by family members when the person is at home, and at a security center when the person is absent.

In addition, if the security guard is not present, the security guard will proceed with a portable transmitter and use the transmitter to determine whether the system in each residence is operating correctly. The idea is to output radio waves with the same content as the output radio waves from transmitters installed in each house. Therefore, the dialer is driven by the controller that receives the radio waves, and by receiving the signal from the dialer at the security center, it can be known that the system in each residence is operating accurately.

The various transmitters installed in each house need only output weak radio waves only when an abnormality is detected, so all components such as the input section, control section, and functional section that detect an abnormality are equipped with a If the power is always turned on regardless of the power source, the power consumption of the entire device will increase, and especially if a battery is used as a power source, the life of the battery will be shortened, which is not only uneconomical but also requires frequent use of the battery. It has to be replaced, which is extremely inconvenient.

The present invention solves the above-mentioned drawbacks by energizing only the necessary components or changing the clock frequency according to the operating state of the device. explain.

FIG. 1 is a block diagram of the alarm system.

(A) is a fire transmitter, (B) is an emergency button, (C) is an intrusion transmitter, (D) is a glass transmitter that outputs a signal indicating glass breakage, and (E) is a signal that outputs a signal indicating a gas leak. These are gas transmitters that output gas, each equipped with a sensor, and installed indoors to monitor indoor abnormalities.

When an abnormality is detected, each transmitter carries a code assigned to it and transmits weak radio waves to the controller (K). The controller (K) receives the weak radio waves with an antenna, converts them to logic level with a receiver, decodes the signals with a microprocessor, and then sends them to an automatic Guyarer (H).
), it sends an abnormal signal to the receiver (I) at the security center, and at the same time sends an abnormal signal to the receiver (I) installed in the residence.
F) to output the same alarm sound as the controller (K),
Drive the switch box (G) to turn on the flashlight (
Make L) blink.

FIG. 2 is a front view of the controller (K), showing the LED indicating the position of the transmitter that sent the weak signal indicating an abnormality.

Equipped with an abnormality LED to indicate an abnormal condition, a mode indicator lamp to indicate whether the family member is at home, out, or at night, a mode selector switch, and a speaker that emits an alarm sound, synthesized voice, etc. There is.

Therefore, if an abnormality occurs while a household member is out, the automatic Guiyara device will notify the security center of the abnormality, allowing a security guard to be dispatched. The alarm can be stopped.

In addition, by operating a portable transmitter during a patrol when no abnormality has occurred, the controller (K) automatically outputs a radio signal equal to the output radio signal of any of the various transmitters described above The dialer device (H) can be activated to check the alarm system.

The present invention relates to a method for reducing power consumption of various transmitters installed in a house, and will be explained in more detail.

FIG. 8 is a block diagram of a device that controls the operation of functional parts by a control part that receives sensor output signals as input, and includes a sensor (1) whose output signal changes depending on changes in external conditions, etc. Input port (2) that latches the output signal of 1)
, a control section (3) that receives the output signal of the input port (2), a functional section (4) that receives the control output signal of the control section (3), and a control section (4) that receives the control output signal of the input port (2); It is composed of a power supply driver (5) driven by an output signal and a battery (6).

Battery voltage is always applied to the sensor (1) and input port (2), and battery voltage is applied to the control section (3) and function section (4) via the power supply drive section (5). has been done. Therefore, the battery voltage is applied to the control section (3) and the functional section (4) only while the input port (2) latches the output signal of the sensor (1).

Note that the control unit (3) controls the functional unit (4) after a predetermined period of time has elapsed.
) and at the same time reset the contents of the input port (2).

The operation of the device having the above configuration is as follows.

When the external situation changes, the output signal (fourth
(see Figure 4(a)) is output, the output signal is latched at the input port (2) (see Figure 4(b)), and the power supply driver (5) is actuated to control the controller (3) and A battery voltage is applied to the functional unit (4) (see FIGS. 4(c) and 4(d)), and a signal indicating that there is an output signal from the sensor (1) is input to the control unit (3).

The control section (3) receives the signal input and operates the function section (4). When the operation of the functional unit (4) is completed, the control unit (3) applies a reset signal (see Fig. 4 (e)) to the input port (2), resets the latch of the input port (2), and at the same time turns on the power. Since the drive unit (5) is reset,
By cutting off the power to the control unit (3) and the functional unit (4) and energizing only the sensor (1) and input port (2), it enters a standby state waiting for the next output signal from the sensor (1). .

In this case, the power consumption of the sensor (1) and the input port (2) is significantly lower than the power consumption of the entire device, so the longer the interval between output signals from the sensor (1), the lower the power consumption of the entire device. It can save money and extend the life of the battery.

As described above, in this embodiment, only the part with the input receiver of the entire device is always energized, and the other components are energized only when the input receiver is attached, so the power consumption is reduced. It has the unique effect that it can significantly reduce the amount of energy used, and when a battery is used as a power source, the life of the battery can be significantly extended.

Fig. 5 is a block diagram of a security device using a microcomputer, and is based on the output signal of sensor 01) whose output signal changes depending on changes in external conditions, etc., and the output signal of sensor 0]) every time it receives a clock pulse signal input. The microprocessor (2) that performs arithmetic processing and the two types of tarok pulse signals from the divider 03 are selectively sent to the microprocessor (2).
6) and a switching unit 0→ which applies an electric current to the voltage.

The switching unit 0→ is connected to the lower frequency output (φl) of the branching unit 03 and the output (OUT) of the microprocessor (2).
I) are applied to the NAND gate (1 equal and the splitter 0
NA to which the other output (φ0) of 3 and the inverted signal of the output (OUTI) of the microprocessor (a) are applied together.
It consists of an ND gate 0. and a NAND gate 07) to which the output of the NAND gate 06M is applied.

In addition, (to) is the output (OUT2) of the microprocessor @
01 is an oscillator that always outputs a tarokk pulse signal of a predetermined frequency and applies it to the branching unit α;
The wire is a battery.

The operation of the security device having the above configuration is as follows.

When the sensor αυ does not detect an abnormal state, the output (OUT 1 ) of the microprocessor Qη is at a low level, and the NAND gate 0 (0) opens and the NAND gate (0) M closes, so that the branching unit (to) A lower frequency output (φ1) is applied to the microprocessor (2). Therefore, the microprocessor (a) performs arithmetic processing at a slow speed to save power consumption.

On the other hand, when the sensor 0η detects an abnormal state, the output (OUTl) of the microprocessor (2) becomes high level, so that, contrary to the above, the NAND gate α is controlled and the NAND gate Q is opened. So, the output (φ1)
The output (φ0) of a frequency higher than the frequency of is applied to the microprocessor (2).

Therefore, the microprocessor (6) performs arithmetic processing at normal speed and applies the output (OUT2) to the transmitter (to), thereby controlling the controller (not shown) to deal with abnormal conditions.
can send a signal to.

As described above, in this embodiment, reliable operation is ensured by lengthening the operating interval of the microprocessor when no abnormality is detected, and by making the operating interval of the microprocessor normal when an abnormality is detected. It has the unique effect of being able to reduce power consumption as it is, and significantly extending the life of the battery when it is used as a power source.

As described above, the present invention makes it possible to reduce the power consumption of the entire device while maintaining reliability of operation by reducing the power consumption when the external conditions etc. do not change. When used, it has the unique effect of significantly extending the life of the battery.

[Brief explanation of drawings]

Figure 1 is a configuration diagram of the alarm system. □ Figure 2 is a front view of the controller. FIG. 8 is a block diagram of a control device showing an embodiment of the method of the present invention. FIG. 4 is a diagram showing signals of each part of the same configuration. FIG. 5 is a block diagram of a security bag/place showing another embodiment of the method of the present invention. 1.11...sensor, 2...input boat,
3...Control unit, 4...Function unit, 5.
...Power supply drive unit, 6.20...Battery, 12
... Microprocessor, 13 ... Frequency divider, 14 ... Switching section. Continued from page 1 0 Inventor Tatsuo Yoshikawa Inside Sharp Corporation, 22-22 Nagaike-cho, Abeno-ku, Osaka 0 Inventor Mitsuharu Sakai Inside Sharp Corporation, 22-22 Nagaike-cho, Abeno-ku, Osaka

Claims (1)

[Claims] 1. In a device that detects changes in external conditions, etc. and switches between an operating state and a standby state, when the device is in the operating state, the entire device is energized in a steady state, and when it is in the standby state, it is energized to components other than the input section. A method for reducing power consumption, characterized by cutting off power supply or reducing the amount of power supplied to reduce the power consumption of the entire device.