JPS62230233A - Radio telephone system - Google Patents

Abstract

PURPOSE:To inexpensively build an emergency information system by using a control channel for the radio channel of a control signal or an emergency informing signal in a radio telephone system having the control channel other than a talking channel. CONSTITUTION:A signal from a sensor ll such as a fire sensor is received by an emergency informing transmitter l. A sensor detector 12 detects the kind of emergency information and sends the detected output to a control section 14. The control section 14 sends an ID data of the emergency informing transmiter l and the emergency data by kind representing the kind of emergency to be detected to a transmission section 15 to modulate a control channel incoming frequency thereby radiating the result from an antenna 16 as a radio wave. A master equipment 4 uses a reception antenna 40 to receive the emergency signal, which is demodulated by a control channel exclusive reception section 42 and the ID data and the emergency data by kind of the emergency informing transmitter 1 are sent to a control section 46. The control section 46 displays the location of emergency and the content of emergency on a dislay section 49 and gives an output in voice from a speaker 50. When the reset operation 51 is not executed in a prescribed timing, an automatic dial generator 47 is started and connected to a telephone line 6.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to adding an emergency report receiving function to a wireless telephone device using a multi-channel access method.

(Prior Art) Conventionally, an emergency call device has been used in which an emergency call from an emergency call transmitter is received by a base unit using radio waves and automatically dials a predetermined call destination via a telephone line.

However, there is no such device that uses the wireless communication path of a wireless telephone device as a communication path for emergency calls, etc.

(Problems to be Solved by the Invention) In order to install the above-mentioned emergency call system that communicates emergency calls etc. to the call destination via a telephone line, it must be added separately from the conventional radio telephone system, which is economical. There was a drawback.

(Means for Solving the Problems) In order to solve the above-mentioned drawbacks, the present invention provides a radio telephone device as follows.

A wireless communication path including one control channel and a plurality of call channels is set between a base unit and a slave unit connected to a telephone line, and the control channel is used to perform a call response using a data signal, etc. Furthermore, in a wireless telephone device configured to specify a call channel and make calls using the designated call channel, the control channel may also be used as a wireless call path for control signals or emergency call signals. A wireless telephone device featuring:

Alternatively, a wireless communication path including one control channel and a plurality of call channels is set between a base unit and a slave unit connected to a telephone line, one of the call channels is used as a preliminary control channel, and the control channel Or, in a radio telephone device configured such that a call response, etc. using a data signal is performed using the preliminary control channel, and a call channel is further specified, and a call is made using the specified call channel, A wireless telephone device characterized in that the control channel is also used as a wireless communication path for control signals or emergency call signals.

(Embodiment) FIG. 1 is a system configuration diagram in which an emergency call transmitter is added to a radio telephone device according to an embodiment of the present invention. FIG. 2 is another embodiment showing how to use channels.

1 is an emergency call transmitter, 2 is a slave unit, and 4 is a base unit.

11 is a fire sensor, 12 is a sensor detector, 13
14 is an emergency button, and 14 is a transmitter 1 that transmits information according to the input signal.
16 is a transmitting antenna, 17 is a receiving section, and 18 is a receiving antenna. 6 is a telephone line, 8 is a control channel 81 is a backup control channel, and 9 is a speech channel.

20 is a receiving antenna of the handset, 21 is a receiving section, 22 is a frequency synthesizer, 23 is a transmitting antenna, 24 is a transmitting section, 25
are a receiving section 21, a transmitting section 24, and a frequency synthesizer 22.
26 is a speaker, 27 is a microphone, 2
8 is a dial, 29 is an operation unit, 30 is a secret modulation circuit, 3
1 is a secret demodulation circuit.

44 is a transmitting antenna, 45 is a transmitting section, 46 is a control section that controls the receiving section 41, transmitting section 45, frequency synthesizer 43, etc., 47 is an automatic dial, 48 is a timer, 4
9 is a display, 50 is a speaker 1. 51 is a reset button, 52 is a voice synthesis element, 53 is a communication circuit, 54 is a handset, 55 is a dial, 56 is an operation unit, 57 is a secret speech demodulation circuit, and 58 is a secret speech modulation It is a circuit.

First, an outline of a wireless telephone device that performs data transmission and communication between a base unit and a slave unit using a control channel and a communication channel, which are radio frequencies, will be explained.

Receiving a call from the telephone line 6 and making an outgoing call to the telephone line at the base unit 4 are normal telephone operations and will therefore be omitted.

First, an example of the operation of the handset 2 to receive an incoming call from the telephone line 6 will be described.

When an incoming signal arrives from the telephone line 6, the control unit 4 of the base unit 4
6 modulates the individual confirmation signal of the handset (hereinafter referred to as ID data) and the designated channel data of the empty call channel that is being searched for on the downlink frequency of the control channel (transmission frequency from the base unit to the handset) and sends it out. . That is, in reality, the control section 46 causes the frequency synthesizer 43 to send a frequency signal corresponding to the downlink frequency of the control channel to the transmitting section 45, modulates it in the transmitting section 45 with the ID data of the handset and specified channel data, and sends the frequency signal corresponding to the downlink frequency of the control channel to the antenna 44. It is emitted as a radio wave.

The handset 2 receives the ID data using the antenna 20 and the receiving unit 21, and when the ID data sent by the control unit 25 is its own, the uplink signal frequency of the control channel (transmission frequency from the handset to the base unit) ), the control unit 25 controls the frequency synthesizer 22 to send the OK data to the base unit 4, and the base unit 4 shifts to the transmitting/receiving state of the designated communication channel frequency.

When the base unit 4 receives the OK data from the slave unit 2 via the antenna 40 at the receiving unit 41, the control unit 46 of the base unit also controls the frequency synthesizer 43, and enters the transmitting/receiving state of the designated communication channel frequency.

Therefore, when the handset 2 receives a call signal from the telephone line 6 via the base unit 4, when the handset 2 presses the response button, the response data is sent to the base unit 4 through the communication channel, and the call circuit of the base unit 4 is activated. state, and you can talk to the other party via the telephone line 6.

Next, a case where a call is made from the handset 2 to the telephone line 6 via the base unit 4 will be explained. Handset 2 connects to base unit 4 via control channel i.
Send D data and telephone line connection data. That is, the control section 25 controls the frequency synthesizer 22 and transmits the transmission section 24.
At the antenna 2, a carrier wave having a frequency similar to that of the control channel is modulated with ID data and telephone line connection data.
3 is emitted as radio waves. Base unit 4 has the ID sent to it.
The data is compared with the telephone line connection data, and the ID data and empty call channel designation data are sent to the handset 2 on the control channel.
Send it back to

Handset 2 sends designated call channel OK data to the base unit via the control channel and shifts to the designated call channel. When the base unit 4 receives the specified channel OK data, the control unit 46 controls the frequency synthesizer 43 to enable transmission and reception of the specified communication channel.

Here, the slave device 2 is connected to the telephone line 6 via the base device 4, and is capable of making dial calls and talking.

Note that it is also possible to call the handset 2 from the base unit 4, or conversely, to make an extension call between the base unit 4 and the handset 2.

Further, in the present invention, the control channel can also be used as a communication path for control signals for secret messages, urgent data, and the like.

As an example, a case where confidential conversation control is performed will be explained.

Confidential modulation circuit 5 controlled by control unit 46 in base unit 4
B, and a secret speech demodulation circuit 57, and a secret speech modulation circuit 30 and a secret speech demodulation circuit 3, which are controlled by the control unit 25 in the handset 2.
1. During transmission and reception between the base unit and the slave unit, a secret code is sent from the base unit or slave unit to the other party using a control channel, the secret code is determined, and the secret code modulation circuit and secret demodulation circuit are activated by each other's control units. Control. Therefore, a secret modulated signal is carried on the designated communication channel.

FIG. 2 shows channel allocation in which one of the plural communication channels is set as a backup control channel that serves as a control channel when the control channel is in use or cannot be used.

Next, we will explain the emergency call operation when a fire or the like occurs.

Emergency notification transmits the fire, etc. signal from sensor 11.
Receive it at The sensor detector 12 detects any emergency and sends a detection output to the control unit 14.

The control unit 14 sends the ID data of its own emergency call transmitter 1 and type emergency data indicating the type of detected emergency to the transmitting unit 1.
5 modulates the upstream frequency of the control channel and sends it to the antenna 16.
emit it as radio waves from the

=9- The base unit 4 receives the emergency signal from the emergency call transmitter 1 using the reception antenna 40, demodulates it in the control channel dedicated receiver 42, and controls the I'D data and type emergency data of the emergency call transmitter 1. The information is sent to the section 46. The control unit 46 causes the display unit 49 to display the emergency hot water area and the emergency content, and causes the speaker 50 to generate the emergency hot water area and the emergency content using voice synthesized sounds.

A person who notices that the main unit 4 is in an emergency can press the reset button 51 of the main unit 4 to deal with this emergency situation.

However, if the reset button 51 is not operated even after the time set in the timer 48 has elapsed, the automatic dial generator 47 is activated and the set dial number is sent to the telephone line 6. Therefore, the output of the voice synthesis element 52 is sent to the destination via the communication circuit 53 and the telephone line 6, thereby conveying the location of the emergency and the details of the emergency using synthesized voice.

If there is an emergency call from the emergency call transmitter 1 while the base unit 4 and the handset 2 are talking on the communication channel, the receiver 42 dedicated to the control channel of the base unit 4 receives the ID data and emergency type data of the emergency report. receive. The control unit 46 of the base unit notifies the base unit and the slave unit of an alarm, automatically disconnects the telephone line 6, and performs the above-mentioned emergency reporting operation.

A case will be described in which an emergency call is made from the emergency call transmitter 1 when another radio telephone system or the own radio telephone system is making a call or the like on a control channel.

Control channels are never used continuously, so
The emergency call transmitter can transmit intermittently using a repeating timer until it is manually reset.

Since the wireless power used in this embodiment is minute, it hardly affects other wireless telephone systems. Also,
The emergency call transmitter transmits emergency calls intermittently, so
Even if there are other wireless telephone systems within a short distance, they do not cause much interference and are not a problem in practice.

In addition, as another method, the emergency call transmitter 1 has a receiving antenna 18.
By providing a receiving unit 17 that receives and demodulates the downlink frequency of the control channel, it detects when the control channel is "empty" and makes an emergency call, and furthermore, it detects when the control channel is "empty" and makes an emergency call. Receive a machine confirmation signal from the base unit. Control part 1
4 stops transmitting the emergency call upon receiving the confirmation signal.

Therefore, even if there are other wireless telephone systems nearby, they will not occupy the control channel and cause interference.

In the above explanation, the dial number information of the automatic emergency call destination was set in the base unit, but this information may also be set in the slave unit. is composed of ID data, type emergency data, and dial data.

Next, as shown in Fig. 2, in another embodiment, a preliminary control channel using a frequency is added to the conventional control channel for transmitting and receiving signals between the base unit 4 and the slave unit 2. This shows what has been applied to the system.

This backup control channel serves as a control channel if the control channel is used or is unavailable.

The preliminary control channel is used as a notification path for the emergency notification transmitter 1, and the operation is the same as that shown in the first embodiment, so a description thereof will be omitted.

Further, the preliminary control channel may also be used as a wireless communication path between the base unit 4 and a doorbell or the like.

In the above explanation, fire was used as the signal sent from the emergency call transmitter to the base unit, but other information such as the amount of water in the bath, temperature, door, etc.
There are windows opening and closing, abnormal conditions in the room, etc.

(Effects of the Invention) A new emergency call system is constructed because the base unit of the conventional radio telephone device consisting of a base unit and a slave unit is also used as a receiver for an emergency call transmitter and an automatic dial transmitter. It is not necessary, so it has a great economic effect.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram in which an emergency call transmitter is added to a radio telephone device according to an embodiment of the present invention. FIG. 2 is another embodiment showing how to use channels. 1...Emergency call transmitter, 2...Slave unit,
4...Base unit, 6...Telephone line, 7...
... Control channel, 8 ... Preliminary control channel, 9 ... Call channel.

Claims (2)

[Claims] (1) A wireless communication path including one control channel and multiple call channels is set up between the base unit and the handset connected to the telephone line, and the control channel is used to respond to calls using data signals, etc. In a radiotelephone device that is configured to make a call and then specify a call channel, and make a call using the designated call channel, the control channel is used as a wireless communication path for a control signal or an emergency call signal. A wireless telephone device characterized in that it also uses (2) A wireless communication path including one control channel and a plurality of call channels is set between the base unit and the handset connected to the telephone line, one of the call channels is used as a preliminary control channel, and the above-mentioned A radio telephone device configured to perform a call response using a data signal using a control channel or the above-mentioned preliminary control channel, further specify a call channel, and make a call using the designated call channel. 2. The wireless telephone device according to claim 1, wherein the control channel is also used as a wireless communication path for control signals or emergency call signals.