JP2918316B2 - Message reception omission detection method - 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 [Outline] A transmitting station transmits a message signal with a selected call number and a serial number and stores the message signal in a storage section. The present invention relates to a method for detecting a message reception omission in a radio paging system that receives attached messages, with the object of providing a message reception omission detection method capable of detecting a message reception omission at an early stage. , Periodically transmits a serial number notification signal including the selective call 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 from the serial number notification signal; A serial number updating unit, a comparing unit, and a serial number storing unit are provided, and when a message signal is received, the message signal is separated by the separating unit;
The serial number is sent to the serial number updating means, and each time a message signal is received by the serial number updating means, the serial number is updated and stored in the serial number storing means. The comparison means compares the serial number of the serial number notification signal with the serial number stored in the serial number storage means, and outputs an alarm if they are different.

[Industrial applications]

According to the present invention, a transmitting station transmits a message with a selected call number and a serial number and stores the message in a storage unit, and the receiver receives a message with the serial number if the call number matches the local station's call number. The present invention relates to an improvement in a method for detecting omission of message reception in a system.

[Conventional technology]

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

When a message is transmitted from the transmitting station shown in FIG. 4 (A) to a receiver having a selective call number of, for example, A, a selective call number A is generated by the radio paging apparatus 10 and transmitted to the transmission processing section 15 '. , And from the counter 12 for the receiver of the selective call number A,
Every time a message is transmitted, a serial number that sequentially increases from 1 is obtained and sent to the transmission processing unit 15 'together with the message.

The transmission processing unit 15 'edits a message signal including a selective call number, a serial number, and a message as shown in FIG.
To send over 17.

This is received by the radio receiving section 20 of the receiver shown in FIG. 4 (B), and the calling signal receiving section 21 selects whether or not the calling number is that of the own station. For example, the message signal is received by the message receiving unit 23 ', a ringing tone is sounded by the speaker 27, and the message display unit
The message is displayed on the message storage unit 25 and the message with the serial number is stored in the message storage unit 26.

However, the receiver may not be called when the condition of the radio wave in the wireless section or when the receiver is in an elevator or underground, etc. , It cannot be confirmed that the receiver has received the message.

Then, as shown in FIG. 4 (D), the receiver holder
For example, every two hours, the serial number of the message stored in the message storage unit 26 is displayed on the message display unit 25, it is checked whether the serial number is missing, and omission of message reception is detected. If a missing serial number is found, the transmitting station is contacted by telephone and stored in the message storage unit 16.
It tries to catch the missing serial number message.

[Problems to be solved by the invention]

However, as shown in FIG. 4 (D), when it is decided to check every two hours, the time when the serial number is checked,
For example, if a message with a serial number of 3 or 9 immediately before 2:00 or 6:00 is not received, the omission is not recognized at 2:00 and 6:00, and the next check time is 4:00 and 8:00. There is a problem that it is slow to detect.

An object of the present invention is to provide a message reception omission detection method capable of detecting message omission omissions quickly.

[Means for solving the problem]

 FIG. 1 is a block diagram showing the principle of the present invention.

As shown in FIG. 1, a message with a selected call number and a serial number is transmitted from a transmitting station and stored in a storage unit. In a radio paging system, a transmitting station is provided with a serial number notifying means 1, and the serial number notifying means 1 periodically transmits a selective call number and a serial number notifying signal including a serial number indicating the number of messages transmitted at the present time. The transmitting and receiving unit includes a separating unit 2 for separating the received message signal addressed to the own station and the serial number notification signal, and a serial number updating unit 3
And a comparing means 4 and a serial number storage means 5 are provided. When a message signal is received, the message signal is separated by the separating unit 2, sent to the serial number updating means 3, and each time the message signal is received by the serial number updating means 3. The serial number is updated and stored in the serial number storage means 5. When the serial number notification signal is received, the serial number is separated by the separating unit 2 and sent to the comparing means 4, and the serial number of the serial number notification signal is The serial numbers stored in the serial number storage means 5 are compared, and if they are different, an alarm is output.

(Operation)

According to the present invention, a serial number notification signal including a selective call number for each receiver and a current serial number is periodically transmitted from the serial number notifying means 1 of the transmitting station, and the receiver of the call number receiving this is transmitted. Then, the comparing unit 4 compares the serial number of the received message stored in the serial number storage unit 5 with the serial number of the serial number notification signal. So, give an alarm.

Therefore, if a serial number notification signal is transmitted, for example, every two hours, a message reception omission can be immediately recognized at that point, and the message reception omission can be detected quickly.

〔Example〕

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 a serial number signal receiving unit and a message receiving unit of FIG.

The difference between the transmitting station shown in FIG. 2 (A) and the conventional transmitting station shown in FIG. 4 (A) is that the message signal includes the date information and the message signal as shown in FIG. 2 (C). As shown in FIG. 2 (D), it consists of information indicating a selected call number, date information, a serial number, and a serial number notification signal as shown in FIG. The point is that the serial number notification signal is periodically transmitted from the serial number notification unit 13 by the clock 14, for example, every two hours.

The difference between the receiver shown in FIG. 2 (B) and the conventional receiver shown in FIG. 4 (B) is that a separating unit 22 for separating a message signal and a serial number notification signal is provided; Each time a message signal is received, the message receiving unit 23 that receives the message signal increases the serial number by one and stores the serial number in the serial number storage unit 28 together with the date. The serial number of the serial number notification signal and the serial number storage unit 28
Is compared with the serial number stored therein, and if they are different, it is a point that a serial number signal receiving unit 24 that issues an alarm from the speaker 27 is provided. The operation of the serial number signal receiving section 24 will be described with reference to FIG.

Upon receiving the message signal, the message receiving section 23 of FIG. 2 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, in step 14 the serial number storage unit 28
Is set to 0, the date stored in the serial number storage unit 28 is updated to the date of the message signal in step 15, and the process proceeds to step 12.

If the date is the same in step 10, the process proceeds to step 11, where the serial number of the received message signal is stored in the serial number storage unit 28.
If the serial number is larger than the serial number stored in the serial number storage unit 28, the process proceeds to step 12. In step 12, the serial number stored in the serial number storage unit 28 is incremented by one and the process proceeds to step 13. And message storage unit 26
To store the message.

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, retransmission is requested by radio waves, the message signal is recognized as the transmitted message signal, and the process proceeds to step 13, where the message is sent. The message is displayed on the display unit 25, and the message is stored in the message storage unit 26.

When the serial number notification signal is received by the serial number signal receiving unit 24, in step 1 of FIG.
If the date is the same as the date stored in the serial number storage unit 28, the process proceeds to step 2. 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 ends. If so, the process proceeds to step 3, and an alarm sound is output 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 unit 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 unit 28 is set to 0, and in step 5, the serial number of the received serial number notification signal is 0. If not, proceed to step 3 and the speaker 27
Make more alarm sound.

In this manner, when the date changes, the serial number of the serial number notification signal is set to 0, and thereafter, each time a message is received, the serial number storage unit
The serial number stored in 28 is incremented by one. On the other hand, a serial number notification signal is transmitted, for example, every two hours after the date changes, and a serial number indicating the number of transmitted messages is notified to the transmitting station. If the serial number is different from the serial number stored in the serial number storage unit 28, an alarm sound is generated as a message reception omission, and the message omission omission can be detected quickly.

〔The invention's effect〕

As described above in detail, according to the present invention, there is an effect that message omission can be detected quickly.

[Brief description of the drawings]

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, and FIG. 3 is a flowchart of processing of a serial number signal receiving unit and a message receiving unit of FIG. FIG. 4 is a block diagram of a conventional transmitting station and receiver. In the figure, 1 is a serial number notifying unit, 2 and 22 are separation units, 3 is a serial number updating unit, 4 is a comparing unit, 5 and 28 are serial number storage units, 10 is a radio pager, 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 call signal reception unit, and 23 and 23 'are message reception units. , 24 is a serial number signal receiving unit, 25 is a message display unit, 26 is a message storage unit, and 27 is a speaker.

Continuation of the front page (72) Inventor ▲ * ▼ Taketake 3-9-18 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Fujitsu Dai-ichi Communication Software Co., Ltd. (56) References JP-A-2-30229 (JP, A JP-A-64-27327 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04B 7/24-7/26 H04Q 7/00-7/28

Claims (1)

(57) [Claims] 1. A transmitting station transmits a message signal with a selected call number and a serial number and stores the message signal in a message storage section. The receiver receives a message with a serial number if the call number matches the call number of the own station. In the radio paging system, the transmitting station is provided with a serial number notifying means (1), and the serial number notifying means (1) periodically selects the calling number and a serial number indicating the number of messages transmitted up to the present time. And a separating unit (2) for separating the received message signal addressed to the own station from the received serial number notification signal and the serial number notification signal, a serial number updating unit (3), and a comparing unit (4). And a serial number storage means (5). When a message signal is received, the message signal is separated by the separating section (2), sent to the serial number updating means (3), and received by the serial number updating means (3). Update the serial number each time When the serial number is stored in the serial number storage means (5) and the serial number notification signal is received, the signal is separated by the separating section (2) and sent to the comparing means (4). A message reception omission detection method, comprising comparing a serial number with a serial number stored in the serial number storage means (5), and outputting an alarm if the serial numbers are different.