JP2005167952A - Communication device with automatic answering function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem in a conventional position communication device that it is costly to know a present position of a protected person carrying a slave unit due to communication via a management center operated by a third party and besides the conventional device fails entirely to operate if portable communication equipment is failed to operate by large-scale disasters or the like. <P>SOLUTION: Unique numbers are given to master and slave units, respectively. Then, the units store mutually the number of the other party and have reception monitors for discriminating a call from the specified other party by the numbers stored. Thereby, the unit receives signals output from the reception monitor to initiate a transmission unit to be able to automatically respond. Besides, an extension telephone circuit enables direct communication between the specified master and slave units that have been registered, so that the communication between the master and slave units can be ensured even if the portable communication equipment has failed to operate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

    The present invention relates to a radio system and a method for operating the same, in which the cost of a slave unit that automatically responds to a question from a master unit and reports the presence of the slave unit is reduced.

Technical background

    In some conventional devices, a mobile phone equipped with GPS reports its current location in response to an inquiry from the management center. Some PHS mobile phones with a short transmission / reception notification distance report the position of the relay antenna as a representative value of the self-location.

    In the conventional apparatus described above, since it is necessary to go through a management center operated by a third party in order to know the current position of the target, the cost increases. Also, the location of the target could not be known if the mobile communication facility failed due to a large-scale disaster.

    The present invention is intended to solve the problems of such a conventional configuration, so that the current position of a target can be known without going through a third party such as a management center. The purpose is to realize the position of the target even when the mobile communication facility stops functioning.

    In order to achieve the above object, the present invention provides a reception monitoring unit for giving a unique number to each of the master unit and the slave unit, storing each other's number, and discriminating a call from a specific partner And a transmission control unit that activates the transmission unit in response to a signal output from the reception monitoring unit.

    Further, the second problem solving means is configured such that an extension call circuit is arranged in the master unit and the slave unit.

    The third problem solving means is configured to arrange a message input unit for inputting a message and a message storage unit for storing the input message.

    The operation of the first problem solving means is as follows. In other words, the slave unit stores the unique number of a specific master unit registered in advance, and activates the transmission control unit under the control of the reception monitoring unit capable of discriminating the call of the master unit and causes the transmission unit to automatically respond. Can do.

    In addition, the operation of the second problem solving means can enable the extension call circuit to directly call between a specific registered master and slave.

    The action of the third problem solving means can transmit a message selected from messages stored in the message storage unit in advance or a message input from the message input unit.

    As described above, the communication device with an automatic answering function according to the present invention allows the child device to answer the question from the parent device without the intervention of a third party without presenting the current position of the guardian such as a child, elderly person, or pet carrying the child device. By providing a means for the parent machine to know directly by automatically responding, the location of the guardian can be grasped at low cost.

    In addition, because the extension call circuit enables communication between the master unit and the slave unit, communication is ensured between the specific master unit and the slave unit even when communication facilities stop functioning in the event of a disaster. The effect is demonstrated.

    By making it possible to select and transmit a predetermined message, it is possible to make a necessary contact in an emergency, and it is possible to reduce the cost by omitting circuits and parts related to voice in a normal mobile phone.

    A message input unit using a dial key or the like can be provided to input and transmit a free message.

    Furthermore, it can be used for play such as “Onikokko” because it provides a cheap way to find the location of the handset.

    Hereinafter, embodiments of the present invention will be described with reference to FIGS.

    In FIG. 1, the master unit 1 and the slave unit 2 communicate with each other through a communication method via the portable communication facility 3 or an extension system 4 through which the first and second units 2 communicate directly.

    FIG. 2 shows a main configuration of the parent device 1 or the child device 2. From the signal received by the receiving unit 5, the reception monitoring unit 6 identifies the caller. If it is determined in step 6 that the signal is received from the parent device, the transmission control unit 8 supplies power to the transmission unit 9 to make a transmission. 6 includes an extension call circuit 10 for making an extension call when it is determined that the call is an extension call, and a message storage unit 12 for storing a message input by the message input unit 11.

    The operation of the above configuration will be described below. The communication according to the present invention is configured by communication via the conventional mobile phone equipment 3 or by extension call in which the parent device 1 and the child device 2 communicate directly.

    Here, the handset 2 is registered with the unique number of the base 1 in advance. The receiving unit 5 of the slave unit 2 that has received a call from the registered master unit 1 monitors the reception signal by the reception monitoring unit 6 and when it matches the unique number of the master unit registered in advance, the call control unit 8 Start up. The activated 8 supplies power to the transmission unit 9 and responds to a call from the parent device 1. While no call is received from a specific parent device 1, 8 cuts off the power to 9 and saves power consumption.

    1 that has received the response of 2 can estimate the distance from the intensity of the received signal to 2 and know the position of 2. At this time, the direction can also be estimated by using a directional antenna for one antenna.

    2 can return one selected from several messages stored in the message storage unit 12 in advance when responding to the call 1. The 2 having the message input unit 11 can appropriately input an arbitrary message and place it on the response signal.

    In addition, when an extension call that directly communicates with 1 and 2 without using the portable communication facility 3 is selected, communication can be performed using the extension call circuit 1 and 2.

    In the first embodiment of the present invention, protected persons such as children, elderly people, and pets are provided with the communication device with an automatic response function shown in FIG. When the guardian calls the child device 2 from the parent device 1, the child device 2 activates the transmitter 9 and automatically responds when it determines the specific parent device 1 registered in advance. Master unit 1 determines the strength of the response signal of slave unit 2 and estimates the distance to the person to be protected. When the portable communication facility is provided with a function of notifying a specific position of an existing antenna accessed by the child device 2, the parent device 1 can also know the area where the child device 2 exists.

    The second embodiment of the present invention is used for play by using a function capable of estimating each other's position between the master unit 1 and the slave unit 2 or between the slave unit 2 and another slave unit. is there. The person who hits the demon with “Onigoko” asks the slave unit 2 of the other person who is hiding from the master unit 1 that he / she has and hides it using the strength of the response signal from each slave unit. Can be found.

Communication procedure used in the present invention Schematic block diagram of the communication device of the present invention

Explanation of symbols

1: Master unit 2: Slave unit 5: Reception unit 6: Reception monitoring unit 7: Central control unit 8: Transmission control unit 9: Transmission unit 10: Extension call circuit 11: Message input unit 12: Message storage unit

Claims (3)

    A communication device having a function of receiving a signal output from a reception monitoring unit for determining a call from a specific base unit and a signal output from the reception monitoring unit and automatically responding by starting a power supply to the transmission unit.     In the event that the mobile phone equipment stops functioning due to a disaster, etc., it has an extension call circuit that allows direct and independent communication between a specific registered master unit and a slave unit. Communication device that can select and send a message by a simple operation such as a button operation from a message storage unit that stores a message input from the message input unit by a simple operation     It is used for play using a function that can estimate each other's position. The person who hits the demon with “Onigoko” asks the slave unit 2 of the other person who is hiding from the master unit 1 that he / she has and hides it using the strength of the response signal from each slave unit. Can be found.

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