JPH03136196A - Radio type emergency notifying device - Google Patents

Abstract

PURPOSE:To notify abnormality to a notifying destination when the abnormality is generated and to improve reliability as a device by periodically executing a safety check from the device to a sensor in the state of starting a caution. CONSTITUTION:When a caution start switch 12f of a device 12 is turned on, a caution start signal is transmitted from the device 12 to sensors 11-14 and a main power supply switch 11f is turned on. Then, the sensors 11-14 are turned to a working state. When the sensor 11-14 starts the caution based on this signal, after the lapse of T1, the device 12 successively transmits correspondent healthly check signals CH1-CH4 to the respective sensors 11-14 and further after the lapse of T2, the healthly check signals CH1 and CH2 are repeatedly transmitted to the sensors 11 and 12, which are important sensors, at the intervals of T3 and T3+T4. When no OK signal comes from the sensor side, a line control part 12d is operated by a main controller 12c and the abnormality of the sensor is notified through a telephone line to a guard sensor in the notifying destination. Thus, the radio type emergency notifying device with high reliability can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wireless emergency notification device that connects a sensor and a notification device by wireless means such as radio waves and light.

(Prior art) Fig. 3 shows a conventional wireless emergency notification device shown in, for example, Japanese Patent Laid-Open No. 64-58084, in which a sensor section (1a) that detects heat and smoke in response to a fire and a detection output are transmitted wirelessly. A sensor (1) consisting of a radio wave transmitting section (1b) and an antenna (IC) for transmitting signals, an antenna (2a) and a receiving section (2b) for receiving signals from the sensor (1), and processing and processing of signals. It consists of an emergency notification device (2) consisting of a security terminal (2c) that displays and transmits information to others.

Next, the operation will be explained. Sensor that detected smoke (1)
transmits the signal to the emergency notification device (2) by radio waves.

At this time, since there are usually multiple sensors (1), each sensor is transmitted with a unique address. The security terminal (2C) that receives the smoke generation signal issues a smoke generation alarm and display (not shown), and depending on the content, issues an alarm to a remote security center (not shown) via a telephone line.

[Problem to be solved by the invention]

Since the conventional wireless emergency notification device is configured as described above, it could only be determined whether the sensor (1) is effective or not when an abnormality occurs. Also, to take advantage of the wireless feature, the power source may be a battery, but in this case, the battery may be disabled in an emergency.
In such cases, it was not possible to deal with them in advance, which caused reliability problems.

This invention was made in order to solve the above-mentioned problems.It takes advantage of the characteristics of a wireless system (easy installation because no wiring is required) and provides a highly reliable wireless emergency notification device. The purpose is to

[Means to solve the problem]

A wireless emergency notification device according to the present invention includes a sensor that sends an abnormality detection signal and an emergency notification device that reports the abnormality detection signal to a predetermined notification destination, each of which is equipped with a transmitter/receiver unit for wirelessly transmitting and receiving signals. In wireless emergency notification devices,
When the above-mentioned sensor receives a warning signal from the emergency notification device, it controls the sensor unit to operate, and also sends a response signal based on the safety check signal periodically issued from the emergency notification device after sending the warning signal. The emergency notification device is provided with a means for transmitting the safety check signal after transmitting the warning signal, and a means for transmitting the safety check signal to a predetermined destination based on the response signal.

[Effect]

In this invention, once the person is in the alert state, a safety check is periodically performed on the sensor from the emergency notification device, which is the main device.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, the sensors include four sensors (11) to (14), ie, the first to fourth sensors (11) to (14).
11) includes a pyroelectric sensor (lla) that detects heat rays from the human body for crime prevention, a main control unit (llb), a radio wave transmitting and receiving unit (llc), an antenna (lid), and a power source (11e).
and a main power switch (llf), and the second to fourth sensors (12) to (14) have a similar configuration, and the second sensor (12) has a smoke detection sensor, a smoke detection sensor, and a main power switch (llf). The third sensor (13) and the fourth sensor (14) are configured to have abnormality detection sensors for equipment such as air conditioners. On the other hand, the emergency notification device (12) has an antenna (1
2a), radio wave transmitting/receiving section (12b), main control section (12c)
), a line control section (12d), a power supply (12e), and a guard switch (12f).

Here, the emergency notification device (12) receives a warning signal from a sensor ( 11) to (14), and a sensor (11) configured to receive the warning signal.
Based on this, as represented by the sensor (11), in (14), the main power switch (llf) is turned on under the control of the main control unit (llb) to turn on the pyroelectric sensor (11a).
Supply power (lie) to the system to make it operational, and send a response signal to the emergency notification device (12) in response to a safety check signal (hereinafter referred to as a health check signal) transmitted from the emergency notification device (12). The emergency notification device (12) sends a notification to the destination based on the response signal. The emergency notification device (12) periodically transmits a health check signal to the warning signal sensors (11) to (14) at predetermined intervals.

Next, specific operations related to the above configuration will be explained with reference to FIG. 2.

When the alert person switch (12f) of the emergency notification device (12) is turned on by a person, the emergency notification device (12) alerts the sensor (11) to
A warning signal is transmitted at (14) (FIG. 2(a)).

Since the sensors (11) to (14) are driven by a power supply, they are normally in standby mode in order to suppress their current consumption. In this state, when the warning signal is received, the main power switch (llf) is turned on, and the sensors (11) to
(14) becomes operational.

Based on this, when the emergency notification device (11) to (14) becomes the alert person, the emergency notification device (12) sends the health check signal CH, to CH4 corresponding to each sensor (11) to (14). are transmitted sequentially (Fig. 2(b)). When the transmission of these health check signals is finished, T
Healthy check signals C of sensors (11) and (12), which are important sensors, at intervals of 3 and T3+T4.
H.

Transmission of CH2 is repeated. In this health check, OK double signal response signal from the sensor side) (Figure 2 (
If C)) is not received, the main controller (12c) activates the line control unit (12d) to report the sensor abnormality to the destination security center via the telephone line.

In the above embodiment, the target sensor and interval of the health check signal can be freely set. Furthermore, in the above embodiment, the health check signal is transmitted from the emergency notification device (12) side, but the sensor side may issue the signal after a certain period of time. Furthermore, the sensor may include an emergency switch for the elderly, in addition to crime prevention and disaster prevention. Furthermore, although the sensor uses a battery as a driving power source, a normal AC power source may be used, and the wireless may be light or sound waves in addition to radio waves.

(Effects of the Invention) As described above, according to the present invention, the safety of the sensor is checked, and if there is an abnormality in the safety check, a notification is sent to the destination, which greatly improves the reliability of the emergency notification device. can be raised to

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a timing chart of the above embodiment, and FIG. 3 is a block diagram of a conventional example. (11) to (14) are sensors, (lla) is a sensor section, (llb) is a main control section, (llc) is a radio wave transmitting/receiving section,
(lid) is the antenna, (lie) is the power supply, (11f)
is the main power switch, (12) is the emergency notification device, (12a
) is the antenna, (12b) is the radio wave transmitting/receiving unit, (12c)
(12d) is a line control unit, (12e) is a power supply, and (12f) is a guard switch. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a wireless emergency reporting device, the sensor transmits an abnormality detection signal and the emergency reporting device reports the abnormality detection signal to a predetermined reporting destination, each of which is equipped with a transmitter/receiver unit for wirelessly transmitting and receiving signals, wherein the sensor includes: Means for controlling the sensor unit to be in operation when receiving a warning signal from the emergency notification device, and transmitting a response signal based on a safety check signal periodically issued from the emergency notification device after transmitting the warning signal. A wireless emergency notification system, characterized in that the emergency notification device is equipped with a means for transmitting the safety check signal after transmitting the warning signal and for reporting to a predetermined destination based on the response signal. Device.