JPH04119725A - Method for detecting mis-reception of message - Google Patents

Abstract

PURPOSE:To detect miss-reception of message quickly by allowing a transmission station to send a serial number notice signal comprising a serial number at a current point of time periodically and allowing a receiver to compare a serial number stored in a storage section and representing how many number the reception message is received with the serial number in the serial number notice signal. CONSTITUTION:A transmission station adds date information and signal identification information representing a signal to be a message signal to the message signal and a serial number notice section 13 sends a serial number notice signal comprising a selective calling number, date information, serial number and serial number notice signal after a date is changed periodically at an interval of, e.g. 2 hours based on a clock section 14. A receiver uses a separation section 22 to separate the message signal from the serial number notice signal, a serial number is being incremented by one every time a message reception section 23 receives the message signal and the result is stored in a serial number storage section 28 together with the date. Upon the receipt of the serial number notice signal, the serial number reception section 24 compares the serial number in the serial number notice signal with the serial number notice stored in the serial number storage section 28 and raises an alarm from a speaker 27 when they are different.

Description

[Detailed Description of the Invention] [Summary] A message signal with a selective calling number 1 serial number is transmitted from the transmitting station and stored in the storage unit, and the receiver receives the serial number if it matches the calling number of its own station. Regarding a message reception failure detection method in a radio paging system that receives attached messages, the purpose of the present invention is to provide a message reception failure detection method that can quickly detect message reception failure. , the receiver periodically transmits a serial number notification signal consisting of the selective calling number and the serial number up to the present time, and the receiver includes a separating unit that separates the received message signal addressed to the own station and the serial number notification signal; A serial number updating means, a comparing means, and a serial number storage means are provided, and when a message signal is received, it is separated in the separating section and sent to the serial number updating means, and the serial number is updated every time the message signal is received by the serial number updating means. is updated and stored in the serial number storage means, and when a serial number notification signal is received, it is separated by the separating section and sent to the comparison means, and the comparison means updates the serial number of the serial number notification signal and
The serial number is compared with the serial number stored in the serial number storage means, and if the serial number is different, an alarm is output.

[Industrial Application Field] The present invention allows a transmitting station to transmit a message with a selective calling number 1 serial number and store it in a storage unit, and a receiver assigns a serial number if it matches the calling number of its own station. The present invention relates to an improvement in a method for detecting message reception failure in a radio paging system that receives received messages.

[Conventional technology]

FIG. 4 is a block diagram of a conventional transmitting station and receiver.

When transmitting a message from the transmitting station shown in FIG. 4(A) to a receiver with a selective calling number, for example, A, the radio paging device 10 generates a selective calling number A and sends it to the transmission processing section 15. , a serial number that increases sequentially from 1 each time a message is transmitted is obtained from the receiver counter 12 for the selective calling number, and is sent to the transmission processing section 15° together with the message.

The transmission processing section 15' edits a message signal consisting of the selective call number 1 serial number and message as shown in (C), stores it in the message storage section 16, and transmits it via the wireless transmission section 17.

The radio receiving section 20 of the receiver shown in FIG. For example, the message receiving section 23'' receives the message signal, sounds the ring tone on the speaker 27, displays the message on the message display section 25, and stores the message with a serial number in the message storage section 26. Remember.

However, depending on the condition of the radio waves in the wireless section or if the receiver holder is in an elevator or underground, the receiver may not be called. It is not possible to confirm whether the receiver has received the message.

Therefore, as shown in FIG. 4(D), the receiver holder displays the serial number of the message stored in the message storage section 26 on the message display section 25 every two hours, for example, so that no serial number is missed. Messages are checked to detect if a message is not being received. When a missing serial number is found, the transmitting station is contacted by telephone and the message of the missing serial number stored in the message storage section 16 is retrieved.

[Problem to be solved by the invention]

However, as shown in FIG. 4(D), when it is decided to check every two hours, if the message with serial number 39 is not received just before the time when the serial number is checked, for example, 2:00 and 6:00, the message with serial number 39 is not received. The omission is not detected at 4 o'clock or 6 o'clock, but is detected at the next check time of 4 o'clock or 8 o'clock, which poses the problem of a delay in detecting the omission of message reception.

SUMMARY OF THE INVENTION An object of the present invention is to provide a message reception failure detection method that can quickly detect message reception failure.

[Means to solve the problem] FIG. 1 is a block diagram of the principle of the present invention.

As shown in FIG. 1, a selective calling number is sent from the transmitting station.

In a radio paging system in which a message with a serial number is transmitted and stored in a storage unit, and a receiver receives the message with a serial number if it matches the calling number of its own station, the transmitting station has a serial number notification means 1. and the serial number notification means 1.
The terminal periodically transmits a serial number notification signal consisting of a selective calling number and a serial number indicating the current number of messages sent, and the receiver separates the received message signal addressed to its own station and the serial number notification signal. A separating section 2, a serial number updating means 3, a comparing means 4, and a serial number storage means 5 are provided, and when a message signal is received, it is separated in the separating section 2, sent to the serial number updating means 3, and the serial number is updated. Every time a message signal is received by the means 3, the serial number is updated and stored in the serial number storage means 5, and when a serial number notification signal is received, it is separated by the separating section 2 and sent to the comparing means 4. The serial number of the serial number notification signal is compared with the serial number stored in the serial number storage means 5, and if they are different, an alarm is output.

[For production]

According to the present invention, the serial number notification means 1 of the transmitting station periodically transmits a serial number notification signal consisting of the selective calling number and the current serial number for each receiver, and the receiver of the calling number that receives this signal Then, the comparison means 4 compares the serial number stored in the serial number storage unit 5 indicating how many times the received message has been received with the serial number of the serial number notification signal, and if they are different, it means that the message was not received. Therefore, an alarm is issued.

Therefore, for example, if you send a serial number notification signal every two hours,
At that point, the failure to receive a message can be immediately recognized, and the failure to receive a message can be detected quickly.

[Embodiment] FIG. 2 is a block diagram of a transmitting station and a receiver according to an embodiment of the present invention, and FIG. 3 is a flowchart of processing of the serial number signal receiving section and message receiving section of FIG. 2.

The difference between the transmitting station shown in FIG. 2(A) and the conventional transmitting station shown in FIG. 4(A) is that the transmitting station shown in FIG.
As shown in Figure C), date information and signal identification information indicating that it is a message signal are added, and from the time the date changes, the selective call number 9 date information is periodically added as shown in Figure 2 CD). .

A serial number notification signal consisting of information indicating the serial number notification part 1 is sent to the serial number notification part 1 periodically by the clock 14, for example, every two hours.
The point is to transmit from step 3.

The receiver shown in FIG. 2(B) differs from the conventional receiver shown in FIG. 4(B) in that a separating section 22 is provided to separate the message signal and the serial number notification signal, and The message receiving unit 23 that receives the message signal is arranged so that each time it receives a message signal, the serial number is incremented by one and stored in the serial number storage unit 28 along with the date, and when a serial number notification signal is received, The serial number signal receiving unit 24 compares the serial number of the serial number notification signal with the serial number stored in the serial number storage unit 28 and issues an alarm from the speaker 27 if they are different.
3, the operations of the message receiving section 231 and the passing code receiving section 24 of the receiver will be explained focusing on this different point with reference to FIG.

When the message receiving section 23 in FIG. 2 receives a message signal, it compares the date of the message signal with the date stored in the serial number storage section 28 in step 10 of FIG. If so, the serial number stored in the serial number storage section 28 is set to O in step 14, the date stored in the serial number storage section 28 is updated to the date of the message signal in step 15, and the process proceeds to step 12.

If the dates are the same in step IO, step 11
If the serial number of the received message signal is greater than the serial number stored in the serial number storage section 28, the process advances to step 12.
In step 12, the serial number stored in the serial number storage section 28 is incremented by 1, and the program advances to step 13, where the message is displayed on the message display section 25 and stored in the message storage section 26, as in the conventional case.

In step 11, if the serial number of the received message signal is smaller than the serial number stored in the serial number storage unit 28, a retransmission request is made over the telephone, the message signal is recognized as the one sent, and the process proceeds to step 13, where the message is sent. The display section 254 displays the message, and the message is stored in the message storage section 26.

When the serial number notification signal is received by the serial number signal receiving unit 24, in step 1 of FIG. 3(A), the date of the serial number notification signal and
Compare the date with the date stored in the serial number storage unit 28, and if the date is the same, proceed to step 2, and if the serial number of the serial number notification signal is the same as the serial number stored in the serial number storage unit 28, the process is terminated. If so, proceed to step 3 and output an alarm sound from the speaker 27.

If the dates are different in step 1, the process proceeds to step 4, where the date stored in the serial number storage section 28 is set as the date of the number notification signal, and the process proceeds to step 5.

In step 5, if the serial number of the received serial number notification signal is 0, the process proceeds to step 6, where the serial number stored in the serial number storage section 28 is set to O; If not, proceed to step 3 and connect speaker 2.
Make an alarm sound from 7.

In this way, when the date changes, the serial number of the serial number notification signal is set to O, and from then on, every time a message is received, the serial number is
The serial number stored in 8 is incremented by one, and on the other hand, a serial number notification signal is transmitted, for example, every two hours after the date changes, to notify the transmitting station of the serial number indicating the number of messages transmitted. If the serial number is different from the serial number stored in the serial number storage section 28, an alarm sound is generated indicating that a message has not been received, so that the missed message can be detected quickly.

〔Effect of the invention〕

As explained in detail above, according to the present invention, there is an effect that failure to receive a message can be detected quickly.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention. FIG. 2 is a block diagram of a transmitting station and a receiver according to an embodiment of the present invention. FIG. 3 is a flowchart of the processing of the serial number signal receiving section and message receiving section of FIG. 2. , FIG. 4 is a block diagram of a conventional transmitting station and receiver. In the figure, 1 is a serial number notification means, 2.22 is a separating unit, 3 is a serial number updating means, 4 is a comparison means, 5.28 is a serial number storage unit, 10 is a radio paging device, 11 is a message input unit, and 12 is a counter , 13 is a serial number notification unit, 14 is a clock, 15 is a transmission processing unit, 16 is a message storage unit, 17 is a wireless transmission unit, 20 is a wireless reception unit, 21 is a calling signal reception unit, 23.23° is a message reception unit , 24 is a serial number signal receiving section, 25 is a message display section, 26 is a message storage section, and 27 is a speaker. Zero-principle block diagram of the present invention

Claims (1)

[Claims] A message signal with a selective calling number and a serial number is transmitted from a transmitting station and is stored in a message storage unit, and the receiver transmits a message with a serial number if it matches the calling number of its own station. In the receiving radio paging system, the transmitting station is provided with a serial number notifying means (1), and the serial number notifying means (1) periodically displays the selective calling number and the serial number indicating the number of messages transmitted up to the present time. The receiver includes a separating unit (2) for separating the received message signal addressed to the own station and the serial number notification signal, a serial number updating means (3), and a comparing means (4). A serial number storage means (5) is provided, and when a message signal is received, it is separated in the separating section (2), sent to the serial number updating means (3), and sent to the serial number updating means (3).
3), the serial number is updated every time a message signal is received and stored in the serial number storage means (5), and when a serial number notification signal is received, it is separated in the separating section (2) and sent to the comparing means (4). The comparison means (4) compares the serial number of the serial number notification signal with the serial number stored in the serial number storage means (5), and if they are different, an alarm is output. A method for detecting message reception failure.