JP3261898B2 - Home security equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home security device for receiving an emergency occurrence signal from a radio transmitter carried by a person and coping with the emergency.

[0002]

2. Description of the Related Art In recent years, apartment houses for the elderly have been constructed.
Various facilities are provided for the elderly living alone. In particular, in such a house, a prompt response to sudden illness, accident, etc. caused by the elderly on a daily basis is required.
For this reason, a pendant-type wireless transmitter is carried on a daily basis (by hanging it from the neck with a necklace), and the switch of the wireless transmitter is pressed in an emergency (sudden illness, accident, etc.). When a switch is pressed on the wireless transmitter, a signal is transmitted, and the receiver receives the signal to determine that an emergency has occurred.

Recently, an emergency situation is not determined by switching on a radio transmitter, but is disclosed in JP-A-3-27.
As described in Japanese Patent No. 8200, there is a method of detecting a person's movement using infrared rays or the like, and determining that an emergency has occurred if the resident stops moving for a certain period of time due to sudden illness or an accident. is there.

Further, as described in Japanese Patent Application Laid-Open No. 63-291197, an electromagnetically induced wave radiating area by electromagnetically induced waves is provided at a low position such as a toilet or a bathroom so that a resident can fall down in the toilet. In some cases, the pendant hung on the neck enters the electromagnetically induced wave radiation area when the person is prone, and automatically makes an emergency call.

[0005] As described above, the conventional home security device can promptly cope with a sudden illness, accident, or the like of the elderly in an apartment for the elderly.

[0006]

However, in the above-mentioned conventional home security device, the frequency channels of the pendant type radio transmitters are set so that the same frequency channel does not exist when the pendant type radio transmitter is set. Specify a different frequency channel from the transmitter, but later install a new pendant wireless transmitter,
If pendant-type wireless transmitters from other manufacturers are mixed, the possibility that the frequency channels of the pendant-type wireless transmitters become the same increases, causing data collision, interference, etc., resulting in poor reliability. Was.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides an excellent home security apparatus capable of reliably transmitting information even when the frequency channels of the pendant wireless transmitters are set to be the same. Aim.

[0008]

According to the present invention, in order to achieve the above object, a sensor detecting means for detecting an abnormal state by a sensor means connected to a home security apparatus, and the sensor detecting means is in an abnormal state. And a radio transmitter for transmitting by changing the transmission frequency channel at regular intervals, and changing the reception frequency channel at regular intervals in accordance with the change of the transmission frequency channel of the radio transmitter. A wireless receiver for detecting a channel and a transmission frequency channel received from the wireless transmitter.

[0009]

According to the present invention, according to the above means, the radio transmitter transmits a different frequency channel to the radio receiver at regular time intervals, and the radio receiver also receives the radio signal in accordance with the change of the frequency channel of the radio transmitter. The wireless information is received from the wireless transmitter by changing the frequency channel.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration block diagram of a home security device in the present embodiment. In FIG. 1, a transmitter 10 is always carried by an elderly person and is hung on the neck of the elderly person by a necklace, and is composed of the following components. The sensor means 11 is an emergency state sensing means for the elderly carrying the transmitter 10. The sensor means 11 is
It may be a button that detects the movement of a person using infrared rays or the like, or may be a button that is depressed when the elderly person determines that it is an emergency, or may be another sensing means. . The sensor detecting section 12 sends out a signal when the sensor means 11 senses. The transmission control unit 13 is a control unit for the transmitter 10, and is controlled based on a control program stored in advance. The wireless transmission unit 14 is a transmission unit that wirelessly transmits data using the transmission antenna 15.

The receiver 20 is a receiving means provided for the transmitter 10, and is constituted by the following components. The wireless receiving unit 21 is a receiving unit, and receives the data transmitted from the wireless transmitting unit 14 via the receiving antenna 22. The reception control unit 23 is a control unit for the receiver 20, and is controlled based on a control program stored in advance. The alarm generation unit 24 generates an alarm according to an instruction from the reception control unit 23. The security system 29
This is a system for responding to an alarm from the alarm generator 24, such as calling a person or contacting a hospital.

Next, the operation of the above embodiment will be described. FIG. 2 is a signal waveform diagram of the wireless transmitter according to the present embodiment, and FIG. 3 is a flowchart illustrating the operation of the wireless receiver according to the present embodiment. The elderly always carry the wireless device 10, and the sensor means 11 of the wireless device 10 senses that an emergency occurs for the elderly. Judgment of the emergency situation for the elderly by detecting the movement of people using infrared rays,
When the movement stops for a certain period of time or longer, it may be determined that an emergency has occurred, or the elderly may themselves determine that an emergency has occurred and press a button or the like. Sensor detector 12
When the sensor means 11 senses an emergency for the elderly carrying the transmitter 10, the transmission controller 13
To send a signal. When the transmission output unit 13 receives the signal from the sensor detection unit 12, as shown in FIG. 2, the transmission output unit 13 changes the transmission frequency channel at predetermined time intervals with data (for example, data such as the identification number of the transmitter 10) incorporated therein. The transmission is changed and transmitted to the wireless transmission unit 14. The wireless transmission unit 14
When data is received from the transmission output unit 13 at regular intervals,
The signal is transmitted to the receiver 20 by the transmission antenna 14. The wireless receiving unit 21 receives the data transmitted from the transmitter 10 by the receiving antenna 22.

Next, the operation of the reception control unit 23 will be described with reference to FIG. It is assumed that the reception control unit 23 is set in advance to the frequency channel 1 (ch1) shown in FIG. When the wireless reception unit 21 receives the frequency channel 1 (ch1) shown in FIG. 2 via the reception antenna 22 (step 31), the reception control unit 23 resets the built-in counter (step 32). The reception control unit 23 detects that the transmission frequency channel 1 detected by the reception antenna 22 matches the frequency channel 1 preset by the reception control unit 23 and detects a carrier (step 33). It is fixed to 1 and the received data is demodulated (step 34). The reception control unit 23 compares the pre-registered data with the demodulated data,
It is determined whether or not emergency information has been received (step 3
5). When the reception control unit 23 determines that the demodulated data is emergency information, the warning generation unit 24 generates a warning to the security system 29 (step 3).
6).

After transmitting the frequency channel 1 (ch1) as shown in FIG. 2, the transmitter 10 next transmits the frequency channel 2 (ch2). Therefore, in step 33, the reception control unit 23 does not match the transmission frequency channel detected by the reception antenna 22 with the frequency channel 1 preset in the reception control unit 23, and cannot detect a carrier. When the carrier cannot be detected, the reception controller 23 increments the built-in counter by one (step 37).
Let it. The reception control unit 23 sets an arbitrary counter value in advance, and the built-in counter incremented by one matches the preset counter value (step 3).
8), the preset frequency channel 1 (ch1) is changed to frequency channel 2 (ch2). The order of the change is the same as the order of the change of the transmission frequency channel transmitted from the transmitter 10. The setting of the transmission time interval of the transmitter 10 is arbitrarily set, and the set time of the receiver 20 is set in advance corresponding to the transmission time interval of the transmitter 10.

As described above, according to the above embodiment, since the transmitters transmit different frequency channels at arbitrary intervals, a plurality of transmitters are set to the same frequency channel. It has the advantage that it can be received.

[0016]

As apparent from the above embodiment, the present invention provides a sensor detecting means for detecting an abnormal state by means of a sensor connected to the home security apparatus, and a sensor detecting means for detecting that the sensor detecting means is in an abnormal state. A radio transmitter for transmitting by changing the transmission frequency channel at regular time intervals, and changing the reception frequency channel at regular time intervals in accordance with the change of the transmission frequency channel of the radio transmitter; A radio receiver for detecting a transmission frequency channel received from the radio transmitter, the radio transmitter transmitting a different transmission frequency channel to the radio receiver at regular intervals, and the radio receiver With the change of the transmission frequency channel of the transmitter, the reception frequency channel is changed so that the transmitter can change the different transmission frequency channel to an arbitrary one. By sending in the interval,
Even if a plurality of wireless transmitters simultaneously transmit on the same transmission frequency channel, the wireless receiver can normally receive, so that there is an effect that a plurality of wireless transmitters can be set on the same frequency channel. .

Further, as is apparent from the above embodiment, the present invention provides a radio transmitter for transmitting to a home security apparatus by changing a transmission frequency channel at regular intervals, and a change in the transmission frequency channel of the radio transmitter. In response to the above, the reception frequency channel is changed at regular intervals, and when the transmission frequency channel of the wireless transmitter is the same as the reception frequency channel, if a carrier is detected, the radio frequency is fixed to the frequency channel to receive the wireless information A radio receiver having a reception unit and a reception control unit that generates an alarm by an alarm generation unit when the radio reception unit receives radio information from a radio transmitter; and a transmission frequency channel and a reception frequency from the radio transmitter. When a carrier is detected when the channel is the same, an alarm is generated by the radio generation unit, so that a plurality of radio transmitters Be set to the transmission frequency channel, a radio receiver to the transmission of each radio transmitter has the advantage that for normally received can always emit accurate alarm.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a home security device according to an embodiment of the present invention.

FIG. 2 is a signal waveform diagram of a wireless transmitter according to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating an operation of the wireless receiver according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 transmitter (wireless transmitter) 13 transmission controller 14 wireless transmitter 20 receiver (wireless receiver) 23 reception controller 24 alarm generator

Claims (2)

(57) [Claims] 1. A sensor detecting means for detecting an abnormal state by a sensor means connected thereto, and a radio transmitter for changing a transmission frequency channel at regular intervals and transmitting when the sensor detecting means detects an abnormal state. And a radio receiver that changes the reception frequency channel at regular intervals in accordance with the change in the transmission frequency channel of the radio transmitter, and detects the reception frequency channel and the transmission frequency channel received from the radio transmitter. Home security device with. 2. A sensor detecting means for detecting an abnormal state by a sensor means connected thereto, and a radio transmitter for changing a transmission frequency channel at regular intervals and transmitting when the sensor detecting means detects an abnormal state. And, the reception frequency channel is changed at regular time intervals in accordance with the change of the transmission frequency channel of the radio transmitter, and when the transmission frequency channel and the reception frequency channel of the radio transmitter are the same, when the carrier is detected, A radio receiver having a radio receiver fixed to a frequency channel and receiving radio information, and a reception controller configured to generate an alarm by an alarm generator when the radio receiver receives radio information from a radio transmitter. Home security device.