JP2001016309A - Device for preventing portable telephone set from being left behind - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely inform a user about a portable telephone set left behind, when the user leaves from an automobile or in the case of outing without the need for revising the configuration of the portable telephone set itself. SOLUTION: This device for preventing a portable telephone set from being left includes a telephone set holder 10 that holds the telephone set in an interior of an automobile, a control means 13 that receives power from an accessory unit use power supply 15 switched on/off by an engine key or an auxiliary power supply 16c that generates a prescribed voltage, even where the engine key is turned off, a sensor 11 that detects the presence of the telephone set in the telephone set holder 10 to give a detection signal to the control means 13, and a notice means 14 that is driven by the control means 13. When the engine key is turned off and the sensing signal from the sensor 11 indicates 'presence of set', a notice means 14 is activated to notify of the telephone set left behind.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a portable telephone from being left behind, and more particularly to a device for preventing a portable telephone from being left behind when leaving a car or going out. .

[0002]

2. Description of the Related Art In recent years, portable telephones have been increasingly reduced in size and weight so as to be convenient for carrying. Therefore, they are often misplaced.

[0003] Similar techniques for preventing misplacement include:
There is a device to prevent misplacement of bags. This uses weak radio waves, and puts the transmitter in a bag and wears a receiver. When the distance between the transmitter and the receiver increases, the received radio wave weakens, so this is detected and an alarm sounds with a buzzer or the like.

[0004]

However, according to this, a transmitter and a receiver are required, and it is necessary to always wear a receiver. That is, if the receiver is left behind, it is useless.

In addition, since it is necessary to always turn on the transmitter to emit a weak radio wave when carrying the portable telephone, various inconveniences occur when the present invention is applied to a portable telephone. For these reasons, a device for preventing misplacement for mobile phones has not yet been put to practical use.

By the way, when a mobile phone is brought into a car, from the viewpoint of accident prevention, it is necessary to insert the mobile phone into a telephone holder so that the mobile phone can be easily picked up, or to use a hands-free communication means so that the user can talk without releasing his / her hand from the steering wheel. However, there is a case where a mobile phone is inadvertently left in a car when leaving the car.

[0007] When this is repeated several times,
Among them, I felt troublesome in using the phone holder and connecting to hands-free calling means, and started driving with my mobile phone in my chest pocket or pants pocket,
Incoming calls can be dangerous.

In a home, a mobile phone is usually placed in a charger holder, so that it is often left behind when going out. As described above, recent mobile phones have become smaller and lighter, and their physical presence has become thinner. When you feel you need to do it, you often realize that you forgot. As a result, for example, important business opportunities may be missed, or contact may not be made.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and the object of the present invention is to provide a portable telephone which can be used when leaving a car or going out while leaving the configuration of the portable telephone. An object of the present invention is to provide a device for preventing a mobile phone from being misplaced so that a user can be reliably notified of misplacement.

In order to achieve the above object, the present invention provides a telephone holder for holding a portable telephone in a vehicle, a power supply for an accessory device which is turned on and off by an engine key of the vehicle, or a predetermined power supply even after the engine key is turned off. A control unit that operates by obtaining power from an auxiliary power supply that generates a voltage, a sensor that detects the presence or absence of the mobile phone with respect to the telephone holder, and provides a detection signal to the control unit, and a sensor that is driven by the control unit. The control means, when the engine key is off and the detection signal from the sensor is "there is a telephone", activates the notification means to report that the mobile phone is left behind. I have.

[0011] According to this configuration, when the engine key is turned off and the user tries to leave the automobile with the portable telephone kept in the telephone holder, a warning sound is emitted from the notification means,
As a result, the user will notice that he or she has left the mobile phone in the car.

[0012] The portable telephone referred to in this specification includes a portable information terminal having a telephone function. A microcomputer is preferably employed as the control means. As a sensor for detecting the presence or absence of a mobile phone, a mechanical switch sensor, an optical sensor, an ultrasonic sensor, a magnetic sensor, or the like can be used.

The power supply for the accessory device used as the power supply for the control means (microcomputer) may be, for example, a power supply for a cigarette lighter provided in an automobile.
The power supply of the cigarette lighter of the car is usually 12 V, but the control means (microcomputer)
Since the operating voltage is too high, the voltage is reduced to, for example, about 5 V by a regulator. In addition, a secondary battery or a capacitor that is charged by the accessory device power supply is used as the auxiliary power supply.

The control means (microcomputer) has a voltage monitoring port for the accessory device power supply, and determines that the engine key has been turned off when the voltage of the accessory device power supply switches from 12V to 0V.

Further, the present invention relates to a hands-free communication means which is connected to a portable telephone in an automobile and enables the portable telephone to be used in a hands-free state, and an accessory device which is turned on and off by an engine key of the automobile. A control means (microcomputer) which operates by receiving power from a power supply or an auxiliary power supply which generates a predetermined voltage even after the engine key is turned off, and detects connection / disconnection of the portable telephone to / from the hands-free communication means. A sensor, and a notifying means driven by the control means, wherein the control means operates the notifying means when the engine key is in an off state and the detection signal of the sensor is `` telephone connection '', It is characterized by a warning that the mobile phone is left behind, Target is achieved.

As described above, in the case of the hands-free communication means, when the engine key is on and the detection signal of the sensor is "telephone not connected", the notifying means is operated and the hands-free communication means of the portable telephone is operated. It is preferable to notify the user of the content that prompts the user to connect to the mobile phone. This makes it possible to positively call for the use of hands-free communication means for safe driving. In the case of a telephone holder as well, it is preferable to actively call for its use as well.

In this case, the control means (microcomputer) may have a sensor function for detecting connection / disconnection of the portable telephone to the hands-free communication means. That is, a specific terminal of an earphone microphone terminal or a signal cable connector having a predetermined number of cores (for example, 16 cores) is connected to a predetermined input port of the microcomputer, and hands-free is determined depending on whether the input port is “Hi” or “Low”. Connection of mobile phone to call means
Non-connection may be detected.

Further, in order to prevent the portable telephone from being left behind when going out, the present invention detects a charger holder for a portable telephone used in a building, and a receiving unit and a human body installed near the entrance of the building. A sensor that detects the presence or absence of the mobile phone with respect to the charger holder, a transmitting unit that transmits a detection signal to the receiving unit, and information based on information from the receiving unit and the human sensor. Control means for operating a notifying means such as a buzzer, and the control means detects a human body by the human sensor, and outputs a detection signal transmitted from the transmitting section to the receiving section, indicating that there is a telephone. In this case, the above-mentioned notifying means is operated to give a warning indicating that the mobile phone is left behind.

According to this, a person passing through the entrance is detected by the motion sensor. At this time, if the mobile phone is placed on the charger holder, the control means determines that the mobile phone has been left behind, and issues an alarm by the notification means. This prevents the portable telephone from being left behind when going out.

The transmission from the transmission unit to the reception unit may be wireless, wired (dedicated line) or AC power line, but does not require a transmission antenna and reception antenna, and does not particularly require new wiring work. From the viewpoint, it is preferable to use an AC power supply line. Also, a pyroelectric sensor is suitable for the human sensor.

[0021]

FIG. 1 is a schematic view of a first embodiment of the present invention, which will be described first. The first embodiment is intended to prevent a mobile phone TP from being left behind in a mobile phone holder 10 provided in the interior of an automobile.
1 is provided.

In the first embodiment, the sensor 11 is a microswitch that is turned on and off by contacting the mobile phone TP, a non-contact type such as an optical sensor, an ultrasonic sensor,
It may be a magnetic sensor or the like.

The first embodiment includes a microcomputer 13 as control means, and a detection signal of the sensor 11 is supplied to a predetermined input port 13a of the microcomputer 13.
Given to. An output port 13d of the microcomputer 13 is provided with a buzzer 14 as a notifying means and an amplifier 14a.
Connected through.

In the first embodiment, the microcomputer 13 includes a voltage monitoring port 13b connected to a cigarette lighter power supply 15 of a vehicle, and a power input port 13c.
And Cigar lighter power supply 15 is DC 12V
It is turned on and off by an engine key (not shown).

The power input port 13c is connected to the power circuit 16. The power supply circuit 16 includes an electrolytic capacitor 16a charged by a cigarette lighter power supply 15 through a diode 16b, and a DC 12V
And a regulator 16c for reducing the voltage to 5V and supplying the voltage to the power input port 13c.

The electrolytic capacitor 16a is an auxiliary power supply for supplying an operating voltage to the microcomputer 13 when the engine key is turned off, but a secondary battery may be used instead of the electrolytic capacitor. The diode 16b is for preventing backflow when the engine key is turned off. In addition,
The mobile phone holder 10 may have a charging function. In this case, the power required for charging is supplied from the cigarette lighter power supply 15.

The operation of the first embodiment will be described. When the engine key of the automobile is turned on, the microcomputer 13 starts up and starts operating at a voltage of 5 V supplied from the cigar lighter power supply 15 via the regulator 16c. Further, the electrolytic capacitor 16a is charged by the cigarette lighter power supply 15.

On the other hand, the sensor 11 outputs, for example, "Hi" as the detection signal of the mobile phone when the mobile phone TP is in the mobile phone holder 10, and outputs "Low" when there is no mobile phone TP.

The microcomputer 13 checks whether the input port 13a is "Hi" or "Low" at predetermined time intervals. As a result, the mobile phone holder 10 is set to “Low”.
If there is no mobile phone TP, the microcomputer 1
Reference numeral 3 outputs a buzzer drive signal from the output port 13d and causes the buzzer 14 to sound. That is, the driver is urged to set the mobile phone TP in the mobile phone holder 10 for the purpose of safe driving.

When the vehicle stops and the engine key is turned off, the 12V power supply from the cigarette lighter power supply 15 is cut off. Instead, for a while, an electrolytic capacitor 16a as an auxiliary power supply is connected via a regulator 16c. 5
V power supply is power input port 1 of microcomputer 13
3c.

[0031] Cigarette lighter power supply 15 from 12V to 0V
Is detected by the voltage monitoring port 13b, the microcomputer 13 determines that the engine key has been turned off. If the input port 13a is at "Hi", it is determined that the mobile phone TP is in the mobile phone holder 10, and a buzzer drive signal is output from the output port 13d to sound the buzzer 14 to allow the driver to carry the mobile phone. Calls attention to carry telephone TP.

In the first embodiment, the engine key is turned on and the input port 13 of the microcomputer 13 is turned on.
The buzzer 14 is caused to sound when "a" is "Low" and when the engine key is turned off and the input port 13a of the microcomputer 13 is "Hi". It is. Also, the former ringing sound and the latter ringing sound can be made different.

Next, a second embodiment of the present invention shown in the schematic diagram of FIG. 2 will be described. In the second embodiment, a portable telephone TP is connected to a hands-free communication means 20 provided in an automobile via an earphone microphone terminal (jack) J.

The hands-free communication means 20 is a communication means capable of talking with the other party via the mobile phone TP without releasing the hand from the steering wheel. For example, an earphone with a microphone can be used, or the voice of the other party can be output from the speaker. There are various methods such as a method in which the voice of the driver is picked up by a microphone attached to a dashboard or a sun visor or the like, but there is no particular limitation in the present invention.

In the second embodiment, a microcomputer (control means) 13, a cigarette lighter power supply 15 and a power supply circuit 16 similar to those described in the first embodiment are used.
Is used.

In the second embodiment, the portable telephone T
P inserts the single-head plug 22 of the hands-free communication means 20 into the earphone microphone jack J,
Connected to hands-free communication means 20.

In this case, the single-head plug 22 has three poles, and the tip 22a at the tip is
The first sleeve 22b transmits the received voice of the mobile phone TP to the earphone or speaker of the hands-free communication means 20. The second sleeve 22 with the single-head plug 22 left
c is a ground pole.

In the second embodiment, the chip 22a of the single-head plug 22 is connected to the input port 1 of the microcomputer 13.
3a, the single-headed plug 22 is inserted into the earphone microphone jack J of the mobile phone TP, whereby the potential of the chip 22a is raised to, for example, +3 V of the power supply in the device of the mobile phone TP.

Therefore, when the portable telephone TP is connected to the hands-free communication means 20, the input port 13a of the microcomputer 13 is "Hi", and when not connected, the input port 1 of the microcomputer 13 is not connected.
3a becomes “Low (0 V)”.

The operation of the second embodiment is the same as that of the first embodiment. That is, the engine key is turned on and the input port 13 of the microcomputer 13 is turned on.
When “a” is “Low” (when the mobile phone TP is not connected to the hands-free communication unit 20), the buzzer 14 is driven, and the buzzer in the sense of urging the driver to use the hands-free communication unit 20. A sound is emitted.

On the other hand, when the engine key is off and the input port 13a of the microcomputer 13 is "Hi" (when the portable telephone TP is connected to the hands-free communication means 20), the buzzer is sounded. 14 is driven, and the driver is invited to carry the mobile phone TP.

Next, a third embodiment shown in FIG. 3 will be described. The third embodiment is positioned as a modification of the second embodiment. That is, in the second embodiment, the mobile phone TP is connected to the hands-free communication means 20 via the earphone microphone terminal J, but in the third embodiment, the mobile phone TP and the hands-free communication means 20 are connected. 1
This is for the case of connection via a 6-core connector.

A 16-core connector C is provided, for example, at the bottom of the portable telephone TP. The hands-free communication means 20 (see FIG. 2) is connected to the 16-core connector C via a 16-core flat cable (not shown). .

The second and tenth pins of the 16-core connector C are allocated for transmission and reception. In the third embodiment, the sixth, seventh, and 14th pins of the 16-core connector C are assigned.
Use pin # 2. For convenience of drawing, other pins are not shown.

In the third embodiment, one of the input / output ports 13f and 2f of the input / output ports of the microcomputer 13 corresponds to the sixth, seventh and fourteenth pins.
Two input ports 13g and 13h are used. That is, the 6th pin of the 16-core connector C is connected to the output port 13f of the microcomputer 13, and the 7th pin is connected to the 14th pin.
The number pin is connected to the input ports 13g and 13h, respectively.

Note that this connection can be made by, for example, extracting a branch line from a 16-core flat cable (not shown). However, the hands-free communication means 20 side has pins 6, 7, and 14 of the 16-core connector C. Are provided, and the microcomputer 13 is connected to each of those terminals.
May be connected to the respective ports 13f to 13h.

In the third embodiment, it can be determined whether or not the portable telephone TP is connected to the hands-free communication means 20 based on the signal level (Hi or Low) of each of the ports 13f to 13h of the microcomputer 13. .

As one of the methods, the output port 13f
Then, a signal is sent to the sixth pin, and it is checked whether a corresponding return signal returns to the input port 13g from the seventh pin. That is, if a return signal appears at the input port 13g, the portable telephone TP is connected to the hands-free communication means 20.
Is determined to be connected, and if no return signal appears, it is determined to be disconnected.

As another method, for example, the 7th pin,
Each input port 13g, 13 connected to the 14th pin
h, the hands-free communication means 20
Connection / non-connection of the mobile phone TP to the user can be determined. In the third embodiment, the power supply and operation of the microcomputer 13 are the same as those of the first and second embodiments, and the description is omitted here.

It should be noted that the above first to third embodiments can be said in common. If the portable telephone misplacement prevention device is not used, the power supply circuit 16 of the microcomputer 13 must be connected to the cigarette lighter power supply 15. I just need.

Next, a fourth embodiment shown in FIG. 4 will be described. The fourth embodiment is intended to prevent a mobile phone from being left behind when going out. It is assumed that a mobile phone is often placed in a charger holder when not in use at home or office. It was done.

Therefore, in the fourth embodiment,
The charger holder 30 includes a detector 40 for detecting the presence or absence of the mobile phone TP, and a transmitter 41. Detector 40
Is a sensor 40a attached to the charger holder 30
Then, based on the output signal from the sensor 40a, a detection signal indicating "with telephone" or "without telephone" is transmitted to the transmission unit 41.

The sensor 40a may be a microswitch or a non-contact type, for example, an optical sensor, an ultrasonic sensor, a magnetic sensor, or the like, similarly to the sensor 11 described in the first embodiment.

In the fourth embodiment, a human sensor 42 arranged near the entrance of a building (here, an entrance door), a receiving unit 43 for receiving a transmission signal from the transmitting unit 41, a control unit A buzzer 45 is provided as a notification unit driven by the unit 44 and the control unit 44.

The human sensor 42 detects a person passing through the entrance door, and various sensors used for automatic door opening / closing control, such as an ultrasonic sensor, a reflective infrared sensor, a pyroelectric sensor, Although a treading mat type sensor for detecting the weight of a person can be applied, a pyroelectric sensor is preferable from the viewpoint of workability during installation and maintenance.

The system for connecting the transmitting unit 41 and the receiving unit 43 may be a wireless communication system including a wireless transmitter 41a and a wireless receiver 43a, a wired communication system using a dedicated line 41b, or an AC system via the AC power supply lines 41c and 43c.
Although any method using a power supply line may be used, a method using an AC power supply line is preferable in terms of simplicity.

The control unit 44 may be a microcomputer similar to that used in each of the above embodiments. Also,
The microcomputer includes a CPU (central)
processing unit) or MPU (micro
A control element called an o processing unit is of course also included.

Next, the operation of the fourth embodiment will be described.
A detection signal indicating whether or not the mobile phone TP is in the charger holder 30 is sent from the detector 40 to the transmission unit 41. The transmitting unit 41 receives the detection signal and
, A signal indicating "with telephone" or "without telephone" is transmitted.

The control unit 44 monitors the human sensor 42 and the receiving unit 43, and when the signal from the human sensor 42 detects that a person has passed, the control unit 44 checks the contents received by the receiving unit 43. Then, when the reception content of the receiving unit 43 is "there is a telephone", it is determined that the mobile telephone TP has been left behind, and the buzzer 45 is sounded to call attention to a person passing through the entrance door. When the reception content of the receiving unit 43 is "no telephone", it is assumed that the portable telephone TP is being carried, and the buzzer 45 is not sounded.

An object to notify that the portable telephone TP has been left indoors is a person who leaves the building. Therefore, when it is necessary to distinguish between a person exiting the building and a person entering the building, for example, a human sensor is provided on both the indoor side and the outdoor side, and one of them detects the person first. What is necessary is just to judge.

In other words, if a person is detected, it is turned on, and if no person is detected, it is turned off. If the indoor-side motion sensor is turned on first, it is determined that the person will leave the building. Then, the contents received by the receiving unit 43 are checked to perform a misplacement prevention operation. On the other hand, if the outdoor sensor is turned on first, it is determined that the person has entered the building, and the misplacement prevention operation may not be performed.

Although the present invention has been described with reference to specific embodiments, modifications, alterations, and equivalent techniques that can be easily obtained by those skilled in the art are also included in the present invention. For example,
In the above embodiment, a buzzer is used as the notification means,
It is easy to replace with a sound, a display lamp, or the like.
Further, even with a microcomputer, which port to use varies depending on the model, and can be arbitrarily selected.

[0063]

As described above, according to the present invention,
Without changing the configuration of the mobile phone itself, it is possible to reliably inform the user that the user has left the mobile phone when leaving the car or going out.

Therefore, when the portable telephone is brought into the car, the driver can use the telephone holder and the hands-free communication means with ease because there is no fear of being left behind when leaving the car. Further, even when the telephone holder and the hands-free communication means are not used during driving, the use of the telephone holder or the hands-free communication means is useful for safe driving.

Further, according to the present invention, when the user goes out of the building even when going out, it is checked whether the mobile phone has been left behind.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention.

FIG. 2 is a schematic view showing a second embodiment of the present invention.

FIG. 3 is a schematic view showing a third embodiment of the present invention.

FIG. 4 is a schematic view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Telephone holder 11 Sensor 13 Microcomputer 14, 45 Buzzer 15 Cigarette lighter power supply 16 Power supply circuit 16a Electrolytic capacitor (auxiliary power supply) 21 Hands-free communication means 22 Single head plug 30 Charger holder 40 Detector 41 Transmitter 42 Human sensor 43 Receiving unit 44 Control unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K023 AA07 BB11 BB23 HH01 HH10 KK04 MM03 MM26 5K067 AA34 AA35 BB04 EE02 FF25 FF38 KK00 KK05

Claims (6)

[Claims] 1. A telephone holder for holding a mobile telephone in an automobile, and a power supply for an accessory device turned on and off by an engine key of the automobile or an auxiliary power supply for generating a predetermined voltage even after the engine key is turned off. Control means to obtain and operate, detecting the presence or absence of the mobile phone with respect to the phone holder,
A sensor for providing the detection signal to the control means, and a notifying means driven by the control means, wherein the control means is configured to control when the engine key is turned off and the detection signal from the sensor indicates "there is a telephone". A device for preventing the mobile phone from being left behind by operating the notification means. 2. A hands-free communication means which is connected to a mobile phone in a vehicle of an automobile and enables the mobile phone to be used in a hands-free state, and a power supply for an accessory device which is turned on / off by an engine key of the automobile or the engine. A control unit that operates by receiving power from an auxiliary power supply that generates a predetermined voltage even after the key is turned off, a sensor that detects connection / disconnection of the mobile phone to the hands-free call unit, and a drive unit that is driven by the control unit. The control means, when the engine key is in an off state and the detection signal of the sensor is "telephone connection", operates the notification means to issue a warning indicating that the mobile phone is left behind. A device for preventing a mobile phone from being left behind. 3. The control means, wherein when the engine key is in an on state, a detection signal of the sensor is "telephone not connected".
3. The device for preventing a portable telephone from being left behind according to claim 2, wherein the notifying unit is operated to notify the user of the content of prompting the portable telephone to connect to the hands-free communication unit. 4. The device according to claim 2, wherein an earphone microphone terminal of the mobile phone or a signal cable connector having a predetermined number of cores is used as the sensor. 5. A charger holder for a mobile phone used in a building, a receiver installed near the entrance of the building and a human sensor for detecting a human body, and the presence or absence of the mobile phone with respect to the charger holder. And a control unit for operating a notification unit such as a buzzer based on information from the reception unit and the human sensor, and a control unit that transmits a detection signal to the reception unit. The control means operates the notification means when the human body is detected by the human sensor and the detection signal transmitted from the transmission section to the reception section is "there is a telephone", and the mobile phone is operated. An apparatus for preventing a mobile phone from being left behind, which issues a warning that the mobile phone is left behind. 6. The transmission from the transmission unit to the reception unit,
The device for preventing a portable telephone from being left behind according to claim 5, wherein the operation is performed via any one of wireless, wired, and AC power lines.