JPS6211361A - Method for hearing voice in vehicle - Google Patents

Abstract

PURPOSE:To grasp the state of an automobile perfectly at a remote place by informing a remote controlling device the occurrence of abnormality when the abnormality related to robbery and at the same time, making vice in the vehicle collected by a microphone audible at the place of calling from outside. CONSTITUTION:The occurrence of abnormality related to the robbery is recognized by the controlling section 201c of a burglarproof system MSP and the code signal is inputted to a remote controlling device 202 through a transmitting/ receiving section 201d. On the other hand, the controlling section 102e of the transceiver equipment 102 of an automobile telephone system MTS is made to hook off state when called, and signals from outside becomes receivable by the system MTS. The controlling section 101a of a controlling unit 101 outputs sound signals in the vehicle from a microphone 101b to a transmission voice line SLT through a voice bus switching device 102f. Thereby, voice in the vehicle collected by a microphone 101b is transmitted from an antenna 104 through a transmitting section 102b.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for listening to voices inside a car, and more particularly to a method for listening to voices inside a car from a remote location using a car telephone system.

<Conventional technology> There are anti-theft devices that prevent cars from being stolen.

If someone attempts to steal a vehicle equipped with such an anti-theft device by opening the door of the vehicle, subjecting the vehicle to a significant shock, or opening the trunk, the anti-theft device will activate, sounding the siren, or causing the vehicle to shut down. Flash your headlights to prevent theft.

However, although sirens and flashing headlights are effective when there are people near the car, they cannot effectively prevent theft when there are no people or at night. For this reason, the applicant of the present application has proposed a method of transmitting the occurrence of an abnormality to a remote control unit and generating an alarm from the remote control unit to notify the user of the abnormality.

<Problems to be solved by the invention> By the way, the shock sensor may operate due to an external force even if the car is not actually stolen, or the noise sensor may operate due to excessive noise outside the car, or other problems. The remote control unit may generate an alarm for this reason, and if the car is actually being stolen, it may be dangerous to drive alone in the presence of a thief. Therefore, when there is an alarm from the remote control unit, there are cases where it is desirable to confirm the current state of the vehicle before starting the vehicle.

However, until now there was no way to secretly check the status of a car from a remote location.

From the above, an object of the present invention is to provide a method that allows you to check the status of a car from a remote location (for example, your home), such as whether or not it is actually being stolen, without having to rush to the car when an abnormality occurs. It is to be.

Another object of the present invention is to provide an in-vehicle voice listening method for checking the situation of a car by listening to in-vehicle voices.

Means for Solving the Problems> FIG. 1 is a block diagram of a system that implements the method for listening to voices in a car according to the present invention.

MTS is a mobile phone system and MSP is an anti-theft system.

Car telephone system MTS control unit 10
1, transceiver unit 102, and T-connector 1
03 and an antenna 104.

Control unit 1011; M+1iR11
01a.

It has a microphone 10lb, a speaker 1o1c, an operation/display section 101d, and the like.

The theft prevention system MSP includes a main body part 201, which is composed of a sensor part that detects abnormalities related to theft, an operation part with a keyball structure, a control part with a microcomputer structure, etc.
The vehicle has a remote control unit 202 called a Beijer that turns on/off the anti-theft function of No. 1 from outside the vehicle and outputs an alarm in the event of an abnormality.

Control unit 101 and transceiver unit 1
02 are connected to each other so as to be able to communicate with each other by multiple power control lines, digital data transmission/reception lines, audio lines, etc., and the T-connector 103 connects the necessary few lines to the main body of the anti-theft system MSP. It is connected to 201.

Function〉 When the driver leaves the car, the anti-theft system MS
P is activated, and the power of the car telephone system MTS is turned off.

In such a state, when the theft prevention system MSP detects an abnormality related to theft, the theft prevention system MSP
The main body part 201 notifies the remote control unit 202 of this fact, and also turns on the ignition and power on the car telephone system MTS so that it can be called from an external telephone.

The remote control unit 202 receives the notification of the occurrence of the abnormality and generates an alarm using a buzzer or the like, and the owner of the automobile knows from this alarm that an abnormality has occurred in his/her automobile.

By the way, even if the device is not stolen, the security sensor may be activated due to an external force, or the noise sensor may be activated due to excessive noise outside, causing the remote control unit to issue an alarm.

Furthermore, it is dangerous to drive alone to a car while it is being stolen because the thief is present. Therefore, there are cases where it is necessary to check the condition of the car before driving the car.

In such a case, call the car's telephone system M using a telephone from outside.
Call the TS, then key in the predetermined code for listening to the in-car audio.

Upon receiving the in-vehicle audio listening code, the car telephone system MTS transmits the in-vehicle audio collected by the microphone 101b to the antenna 1 via the transmitter of the transceiver unit 102.
Send from 04. This allows you to listen to the sounds inside the car from a remote location and check the car's status.

<Example> Fig. 2 and Fig. 3 are block diagrams of a system that realizes the in-vehicle audio listening method according to the present invention, Fig. 2 is a block diagram of a car telephone system MTS, and Fig. 3 is a block diagram of a theft prevention system MSP. FIG.

In FIG. 2, MTS is a cellular one-way car telephone system, which includes a control unit 101, a transceiver unit 102, and T-connectors 103a and 10.
3b and an antenna 104.

The control unit 101 electrically includes a computer-configured control section 101a, a microphone 101b, a speaker 101C, an operation/display section 101d, and an audio path switching@
101e, 101f, a hook switch 101g, and a power supply control circuit 101h, but mechanically, as shown in FIG.
It is composed of SU.

There is a microphone 101. on the back of the handset HDS. b.

A speaker 101c is provided, and a number pad portion 101d- is provided on the surface for inputting a telephone number, etc., as shown in FIG.
1. A function marker section 101d-2 having a send key SND, an end key END, etc., and a display section 101d-3 for displaying dialed numbers are provided.

The base unit BSU has a panel section 1 as shown in FIG.
01d-4. Speaker receptor SR3, microphone receptor MR
3, and the panel section 101d-4 includes a power on/off switch PW, an AUX switch, an alert volume ALV that controls the speaker level of the ringer, and a handset volume H3 that controls the receiving volume of the handset.
V, a display section DSP for displaying each cover is provided. In addition, the handset HDS's number key part 101d-1, function key 1161o 1a-2, display m101d
-3, and the panel section 101d of the base unit BSU-
4 constitutes the operation/display section 101d shown in FIG.

The transceiver unit 102 includes a receiver 102a, a transmitter 102b, a duplexer 102c that appropriately connects the antenna 104 to the receiver and the transmitter, a synthesizer 102d that generates a predetermined frequency signal, and a controller 10.
2e, a tX modulator 102f that demodulates digital data,
A modulation unit 102g that modulates digital data, and a switch 1 that switches and outputs digital data and audio from a microphone.
02h, an audio path switch 1021 that switches and outputs an audio signal from the receiver 102a and a tone from a tone generator (not shown), and a power supply control circuit 102.

Control unit 101 and transceiver unit 1
Between 02 and 2, there are multiple power and power control lines PL.
, a plurality of digital data transmission/reception lines DL, a reception audio line SLR, a transmission audio line SLT, etc., and the T-connectors 103a and 103b connect necessary lines among them to the theft prevention system MSP.

In FIG. 3, MSP is an anti-theft system, and includes a main body 201 and a remote control unit 202, called a pager, that turns on/off the anti-theft function from outside the vehicle and outputs an alarm in the event of an abnormality.

The main body section 201 includes a sensor section 201a that detects an abnormality related to theft, an operation section 201b having a keyboard structure, a control section 201c having a microcomputer structure, and a transmitting/receiving section 201d. The sensor unit 201a includes a door sensor DS that detects the opening and closing of a door, a shock sensor S81 that detects shocks exceeding a predetermined value, a noise sensor NS that detects when the noise inside the vehicle exceeds a predetermined value, and other sensors that detect the opening and closing of the trunk. have. The operation unit 201b has a numeric keypad, a function key, and a password (ID code).
These are operated when inputting information, activating the system's anti-theft function, or deactivating the anti-theft function.

The transmitter/receiver 201d includes a transmitter 201d-1 and a receiver 20.
1d-2, a switching section 201d-3 that appropriately connects the antenna AT to the transmitting section and the receiving section, and a modulating section 201d-4 that modulates the digital data output from the control section 201C.
It has a demodulator 201d-5 that demodulates the signal input from the receiver 201d-2 and inputs it to the controller 201C.

The remote control unit 202 includes a transmitter 202a and a receiver 2.
06b, and the antenna AT' is connected to the transmitting section 202a and the receiving section 2.
A switching unit 202c that is appropriately connected to 02b, and a modulation unit 202
d, a demodulating section 202e, a control section 202f, a key AK for activating the anti-theft function of the anti-theft system MSP, and a key D for canceling the operating state of the anti-theft function.
It has a key part 202g having an AK and a buzzer 202h that outputs an alarm in the event of an abnormality.

The in-vehicle audio listening method according to the present invention will be explained below according to the flowchart shown in FIG.

Anti-theft system MSP when the driver leaves the car
is activated, and the power on/off switch PW (FIG. 4) of the mobile telephone system MTS is operated to turn off the power of the mobile telephone system.

(1) In such a state, the theft prevention system MS
The control unit 201C of P constantly monitors whether the sensor unit 201a detects an abnormality.

(2) When an abnormality occurs and a predetermined sensor is turned on, the control unit 201C of the anti-theft system MSP immediately recognizes this and sends a predetermined code signal indicating the occurrence of an abnormality to the transmitting/receiving unit 201.
d to the remote control unit 202.

(3) Upon receiving the abnormality occurrence code, the control section 202f of the remote control unit 202 immediately drives the buzzer 202h to output an alarm. The buzzer sound is stopped after a predetermined time or by pressing a stop key (not shown) provided on the key part 202g.

(4) Furthermore, when an abnormality occurs, the control unit 201C turns the car telephone system MTS into an ignition-on state and a power-on state. That is, it sequentially outputs an ignition enable signal and a power enable signal to the power control line and starts counting time.

(5) The control unit 201c appropriately compares the elapsed time t with the preset duration TP, and checks whether t) Tp holds true.

(6) Then, if t>TP, the control unit 201C puts the mobile phone system MTS into the Evenirasian OFF state and the power OFF state.

(7) On the other hand, if t≦Tp, the control unit 102e of the transceiver unit 102 checks whether it has been called from the outside.

(When called, the controller 102e of the transceiver unit 102 of the 81 car fE talk system MTS performs normal incoming call processing and puts the car phone system in a hook-off state. As a result, the signal from the external phone is transmitted to the car phone. The system becomes ready for reception.The audio lines SLR and SLT between the control unit 101 and the transceiver unit 102 are connected to each audio path switch 1.
It is cut by 01e, 101f, 102i, and 102h.

(9) In this state, the control section 102e of the transceiver unit 102 waits for a code for listening to in-vehicle audio (in-vehicle audio listening code) to be sent. In addition, in order to send codes, etc., it is necessary to use a telephone equipped with a telephone as the external telephone.

(11) Now, if the in-car audio listening code is not sent, check whether t>TP until it is sent. If t>TP, jump to step (6).

(1K) When the in-vehicle audio listening code is sent, the control section 102e of the transceiver unit 102 sends a notification to that effect to the control section 101a of the control unit 101 via the data line DL, and also switches the switch 102h to transmit the outgoing audio. The line SLT and the transmitter 102b are connected. Further, the control section 101a of the control unit 101 causes the audio path switch 102f to output the in-vehicle audio signal from the microphone 101b to the outgoing audio line SLT. As described above, the in-vehicle sound collected by the microphone 101b is transmitted from the antenna 104 via the transmitter 102b.

(After 11 JL, the control unit 102e checks whether the other party has hung up the receiver and the line has been disconnected.

(11 If the line is disconnected, hook off and perform the processing from step (6) onwards.

(If the line 14 is not disconnected, the in-vehicle audio will continue to be transmitted until t>TP. Then, if t>TP, the process jumps to step (6).

Although the above configuration is such that the in-vehicle audio is transmitted when the in-vehicle audio listening code is received, it is also possible to configure the in-vehicle audio to be transmitted only upon a call.

In addition, the above describes the microphone 10 included in the handset HDS.
1b, but if a hands-free device (having a microphone and a speaker) is installed, it is configured to transmit the in-vehicle sound collected by the hands-free microphone. You can also.

<Effects of the Invention> According to the present invention, when an abnormality related to theft occurs, the remote control unit is notified of the abnormality occurrence, and the car phone system is placed in a state where it can be called from the outside, and the car phone system is activated by the call from the outside. Since the system is configured so that the sounds inside the car collected by the microphone are transmitted to the called party, the sounds inside the car can be heard from a remote location, and the situation of the car can therefore be reliably understood.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a block diagram of the car telephone system, Fig. 3 is a block diagram of the anti-theft system, Fig. 4 is an external view of the control unit, and Fig. 5 is the surface of the handset. FIG. 6 is a flowchart of the process of the present invention. MTS: Car telephone system, MSP: Anti-theft system, 101: Control unit, 101b: Microphone, 101f: Audio path switcher, 102: Transceiver unit, 102e: Control unit, 102h: Switcher , 201...
Main unit, 202...Remote unit SLS, SLT...Audio line Patent applicant Alpine Co., Ltd. Agent Patent attorney Chiki Saito L-+----
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Claims (2)

[Claims] (1) In a method for listening to voices in a car equipped with a car telephone system and an anti-theft system for preventing car theft, the anti-theft system notifies the remote control unit of the occurrence of an abnormality when an abnormality related to theft occurs, and A method for listening to voices in a car, characterized by setting the car phone system in a state where it can be called from the outside, and transmitting in-car sound collected by a microphone of the car phone system to a called destination upon a call from the outside. (2) The car phone system transmits in-vehicle sounds collected by a microphone to a called party on the condition that a predetermined code for listening to in-vehicle sounds is received. The method for listening to in-vehicle audio described in (1).