JP2807333B2 - Wireless device capable of testing radio wave reach - Google Patents

Description

Description: BACKGROUND OF THE INVENTION (Industrial Application Field) The present invention relates to a call that allows an operator to carry a receiver so that the operator can call even when the operator is away from the wireless device. The present invention relates to a wireless device with a function, and more particularly, to a wireless device with a calling function that enables a test of a radio wave reach distance from a wireless device in such a wireless device.

(Prior Art) There are various known calling systems capable of calling an operator when the operator is away from the wireless device main body. For example, when an operator carries a receiver and sends a notification signal to activate the receiver when a wireless device attached to the vehicle is about to be removed without permission, the operator calls the operator and reports the danger of theft. Some wireless devices have a prevention function. However, since it is not easy to know how far the radio wave reaches from the radio, if the operator is too far from the radio,
It was difficult to prevent the radio from being stolen.

Another example of a wireless paging system is the wide area pager. In this system, a calling radio wave is transmitted twice at 30-second intervals in order to reliably call. In addition, since the service area is clearly specified by the telecommunications carrier, the user can easily identify whether he or she is within the service area or outside the service area. Since this wide area pager is a well-known system, it can be said that users rarely misunderstand how to use it.

2. Description of the Related Art In recent years, a system has been used in which an operator of a wireless device carries an announcer, and even when the operator is away from the wireless device, the operator is notified that a calling radio wave has arrived at the wireless device. In this system, when the radio receives a calling radio wave, the radio transmits a notification signal to the receiver to operate the receiver and notify the operator of the incoming call.

In such a system as well, as in the case of the wide area pager, a notification signal is transmitted a plurality of times from the wireless device to the receiver in order to reliably call the operator. Therefore, when receiving a notification signal two or more times in succession, the receiver operates as if there were multiple calls, and issues an alarm signal such as sound or light multiple times to notify the arrival of the call. Therefore, there is a problem that an operator holding the receiver receives a misunderstanding as if a plurality of calls were made.

Therefore, in order to eliminate such a problem, a masking circuit is provided in the receiver so that the receiver responds to only one notification signal when the same notification signal is repeatedly received within a predetermined time. ing.

However, such a wireless device has a problem that it is not possible to easily and quickly know how far the notification signal reaches from the wireless device under various different conditions. That is, in order to confirm the reach of the notification signal with such a wireless device, the distance between the receiver and the wireless device is sequentially changed, and after slightly changing the distance, the notification signal is transmitted from the wireless device to the receiver. A method is adopted in which the signal is transmitted, and each time the receiver receives the notification signal, it is measured. However, since the receiving machine is provided with the masking circuit, it is necessary to wait for the next measurement until the operation of the masking circuit is completed, and there is a problem that it takes time to measure the radio wave reach.

(Problems to be Solved by the Invention) The present invention has been made in order to solve such a problem, and provides a wireless device that can easily and quickly measure the reach of a notification signal from a wireless device. With the goal.

(Means for Solving the Problems) In order to achieve the above object, a wireless device with a calling function according to the first invention of the present application provides: a wireless device main body; and a notification in response to an output of the wireless device main body. A transmitter including a notification signal transmitting unit for transmitting a signal, and a receiver provided separately from the transmitter and receiving the notification signal and generating an alarm signal. The wireless device further includes an activation circuit capable of activating the notification signal transmitting unit independently of the output of the wireless device main body and transmitting the notification signal at predetermined intervals.

A wireless device with a calling function according to the second invention of the present application is coupled to the wireless device main body and is activated when the wireless device main body receives a calling radio wave and transmits a notification signal at a first time interval. A notification signal transmitting unit for transmitting the notification signal a plurality of times, a receiver including a function of receiving the notification signal and generating an alarm signal, and a masking function for responding to one of the received notification signals; .

An activation circuit is connected to the notification signal transmission unit, and when the activation circuit is operated, the notification signal transmission unit causes the notification signal to be transmitted a plurality of times at a second time interval shorter than the first time interval.

In addition, the receiver is provided with a release unit that releases the masking function.

(Operation) In the first invention of this application, a start-up circuit provided separately from a notification signal transmission unit that transmits a notification signal in response to an output of the wireless device main unit activates the notification signal transmission unit during operation. Notification signals at predetermined intervals. The receiver receives the notification signal and issues an alarm signal.

In the second invention of this application, when the start-up circuit and the canceling unit are disabled, the notification signal transmitting unit transmits the notification signal at the first time interval, and the receiver receives the notification signal and outputs the alarm signal. Fire once.

When the activation circuit and the canceling means are in the operating state, the notification signal transmission unit is activated by the activation circuit and transmits the notification signal at the second time interval. The receiver receives the notification signal at the second time interval and issues an alarm signal each time.

(Embodiment) FIG. 1 is a block diagram showing a configuration of a first embodiment of a radio apparatus with a calling function according to the present invention. The well-known radio body 10 is attached to the dashboard of the vehicle,
The notification signal transmitting unit 20 is connected to this by an appropriate means. The output terminal of the radio unit is the theft detection circuit of the notification signal sending unit 20
The output terminal of the theft detection circuit 21 is connected to one input terminal of the control circuit. The output terminal of the control circuit is connected to the input terminal of the transmission circuit 23 that transmits the notification signal.

The output terminal of the starting circuit 24 is connected to the other input terminal of the control circuit 22, and the operation of the starting circuit 24 is controlled by the test switch 25.

 The operation of the wireless device will be described.

(I) Normally, the test switch 25 is turned off. In this state, when the operator of the wireless device leaves the vehicle,
The receiver 30 that receives the notification signal is carried. Now, if someone tries to remove the radio device 10 without permission, the radio device 10 sends a signal to the theft detection circuit 21 and the
Activate The operation of the theft detection circuit 21 is detected by the control circuit 22, and the transmission circuit 23 is operated to transmit a notification signal. The transmitted notification signal is received by the receiver 30, and the receiver 30 issues an alarm signal in response thereto, so that the operator can know the danger of the theft of the wireless device main body.

(II) When measuring the arrival distance of the notification signal, the test switch 25 is turned on and the starting circuit 24 is operated. This operation is detected by the control circuit 22, and the notification signal is transmitted from the transmission circuit 23 at regular intervals. Then, when the receiver 30 is gradually moved away from the wireless device main body 10, an alarm signal is output within the reach of the notification signal, so that it is possible to confirm how far the notification signal reaches. Thus, it is possible to test the reach of the notification signal without operating the theft detection circuit 21.

FIG. 2 is a block diagram showing the configuration of a second embodiment of the wireless device according to the present invention. A notification signal transmitting unit 200 is connected to a well-known wireless device main body 100 by appropriate means such as electric, acoustic, or optical. The output terminal of the wireless device main body 100 is connected to an input terminal of an operator absence determination circuit 210 that determines whether or not an operator of the wireless device is absent, and generates an output when the absence of the operator is determined. The output terminal is connected to one input terminal of the control circuit 220. An output terminal of the control circuit 220 is connected to an input terminal of the transmission circuit 230.

The other input terminal of the control circuit 220 has a start circuit 2 for starting the transmission circuit 230 when testing the reach of radio waves.
Forty output terminals are connected to the starting circuit 240, and a test switch 250 for operating the starting circuit 240 at the time of testing the radio wave reach is connected.

On the other hand, the receiver 300 is carried when the operator moves away from the wireless device main body 100. When receiving the notification signal from the notification signal transmission unit 200, the receiver 300 emits an alarm signal such as sound or light and calls the operator. And a notification signal receiving circuit 310 for notifying the presence of the alarm. The broadcast signal receiving circuit 310 has a built-in masking circuit that masks the operation of the receiver so that the broadcast signal is notified only once even when the broadcast signal is received a plurality of times. The notification signal receiving circuit 310 is connected to a masking release circuit 320 for releasing the operation of the masking circuit, and the operation of the masking release circuit 320 is controlled by a masking release switch 330.

Next, the operation of the wireless device according to the second embodiment will be described with reference to FIG.

(I) In a normal operation, the test switch 250 and the masking release switch 330 are kept off, so that the activation circuit 240 and the masking release circuit 320 do not operate. When the radio main body 100 receives the calling radio wave in this state, the radio main body 100 outputs an activation signal notifying the arrival of the calling radio wave to the operator absence determination circuit 210 of the notification signal transmitting unit 200. Upon receiving the start signal, the operator absence determination circuit 210
Determines whether the operator is absent, and when it is determined that the operator is absent, activates the control circuit 220, activates the transmission circuit 230, and transmits the first notification signal. After a lapse of a predetermined time, for example, after 30 seconds, the control circuit 220
0 is started again, and the second notification signal is transmitted. On the other hand, when the receiving circuit 310 of the receiver 300 carried by the operator determines that the notification signal has been received, the receiving circuit 310 issues an alarm signal such as a sound or light to notify the operator that the call has been made.
In this case, since the masking circuit is operating, even if the notification signal is received again within a certain masking time (for example, one minute), the notification signal is ignored.

(II) The notification signal from the notification signal transmission unit 200 is
When it is desired to confirm how far the receiver 200 reaches from 200, the test switch 250 of the notification signal transmitting unit 200 and the masking release switch 330 of the receiver 300 are turned on. When the test switch 250 is turned on, the activation circuit 240 is activated, and its output is given to the transmission circuit 230 via the control circuit 220, and the transmission circuit 230 transmits a notification signal at regular intervals, for example, every 5 seconds. . On the other hand, when the masking release switch 330 is turned on, the masking release circuit 320 is switched to the inactive state, and the receiver 310 can continuously receive the notification signal and transmit the alarm signal.

Therefore, when the receiver 300 is gradually moved away from the wireless device main body 100, when the receiver 300 is within the range of the notification signal, the receiver 100 issues an alarm signal at regular intervals, and the notification signal arrives. However, if the distance is out of the range, no alarm signal is output from the receiver 300. In this manner, the arrival distance of the notification signal can be confirmed without being restricted by the masking time of the receiving circuit 310.

Note that the test switch 250 and the masking release switch 330
May be provided as a dedicated switch or shared with another switch. In particular, since the receiver 300 needs to be miniaturized, it is preferable that the receiver 300 also be used as another switch.

(Effects of the Invention) As can be understood from the above description of the present invention in detail with reference to the embodiments, the first invention of this application has a start-up circuit. Is operated to transmit a notification signal from the notification signal transmission unit, and the arrival distance of the notification signal can be confirmed. In addition, by simply adding a start-up circuit to the existing wireless device with a calling function, it is possible to add an indispensable function to a wireless device with a calling function called a test function of a notification signal reachable distance at low cost and easily. is there.

According to the second invention of this application, in addition to the above-described effects, when the start-up circuit and the canceling unit are made inoperative, the notification signal transmitting unit transmits the notification signal at the first time interval and receives the notification signal. The machine can perform the normal calling function of receiving an annunciation signal and issuing an alarm signal. Further, when the activation circuit and the canceling unit are in the operating state, the notification signal transmitting unit transmits the notification signal at a second time interval shorter than the first time interval, and the masking function of the receiver is released. In this state, a notification signal is received at the second time interval and an alarm signal is issued each time.
It is possible to confirm the reach of the notification signal from the wireless device main body using the receiver.

Further, in a wireless device with a calling function that operates when a call is made from a base station and transmits a notification signal, if the calling is unsuccessful, either the wireless device side or the receiver side can be used. In order to check whether an error has occurred, it was necessary to make the base station call again. However, in the second invention of this application,
There is an effect that the wireless device itself can confirm the abnormality.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a radio apparatus with a calling function according to the present invention. FIG. 2 is a block diagram showing a configuration of a second embodiment of a radio apparatus with a calling function according to the present invention. FIG. 10 ・ 100: Radio unit, 20 ・ 200: Notification signal transmission unit, 21: Theft detection circuit, 210: Operator absence judgment circuit, 22 ・ 220: Control circuit, 23 ・ 230: Transmission circuit, 24 ・ 240: Startup Circuit, 25/250: Switch, 30/300: Receiver, 310: Receiving circuit, 320: Masking release circuit, 330: Release switch

Claims (7)

(57) [Claims] A transmitter including a radio unit, a notification signal transmitting unit for transmitting a notification signal in response to an output of the radio unit, and a transmitter provided separately from the transmitter; And a receiver for receiving an alarm signal and issuing an alarm signal. A wireless device with a calling function, wherein a notification unit is activated to transmit the notification signal at a predetermined interval independently of an output of the wireless device main body. A wireless device with a calling function, characterized in that the wireless device has a starting circuit capable of performing the operation. 2. The alarm signal extracting section includes a theft detection circuit coupled to the radio device main body. When the theft detection circuit is activated or when the activation circuit is activated, the notification signal transmitting section transmits the annunciated signal. 2. The wireless device with a calling function according to claim 1, wherein the wireless device transmits a notification signal. 3. A wireless device main body; a theft detection circuit coupled to the wireless device main body; a notification signal transmitting unit for transmitting a notification signal in response to an output of the wireless device main body; An activation circuit capable of activating the notification signal transmission unit independently of the output and transmitting the notification signal at predetermined intervals, comprising: when the theft detection circuit is activated or the activation circuit is activated. 2. The transmitter for use in a wireless device with a calling function according to claim 1, wherein the notification signal is transmitted from the notification signal transmitting unit at a time. 4. A wireless device main body, coupled to the wireless device main body,
A transmitter which is activated when the radio body receives the paging radio wave and which transmits an alarm signal a plurality of times at a first time interval; and a transmitter which receives the alarm signal and issues an alarm signal Features and
A receiver including a receiving circuit having a masking function for responding to one of the received notification signals.A wireless device with a calling function, comprising: An activation circuit for transmitting a notification signal a plurality of times from a transmission unit at a second time interval shorter than the first time interval, and a release unit connected to the reception circuit and releasing the masking function. A wireless device with a calling function. 5. An absent determination circuit for determining whether or not an operator is absent, a transmitting circuit for generating and transmitting a notification signal, a starting circuit and an absent determining circuit. 5. The call function according to claim 4, further comprising: a control circuit configured to cause the transmission circuit to transmit the notification signal at the first time interval or the second time interval in response to any one of the outputs. With wireless device. 6. A radio unit, and a notification signal transmitting unit coupled to the radio unit and activated when the radio unit receives a calling radio wave and transmitting a notification signal a plurality of times at a first time interval. An activation circuit that is connected to the notification signal transmission unit and that, when activated, causes the notification signal transmission unit to transmit a notification signal a plurality of times at a second time interval shorter than a first time interval; and In response to the output of the start-up circuit, the notification signal transmitting unit sends the first time interval or the second
The transmitter according to claim 4, further comprising: a control circuit configured to transmit the notification signal at a time interval of: 7. A receiving circuit having a function of receiving the notification signal and issuing an alarm signal, a masking function for responding to one of the received notification signals, and a receiving circuit connected to the receiving circuit, The receiver for use in a wireless device with a calling function according to claim 4, further comprising: releasing means for releasing a masking function.