JPH03117258A - Talkie remote rewriting system - Google Patents

Abstract

PURPOSE:To eliminate the need for a private line, to prevent mis-rewrite at the time of the abnormality of a data due to a transmission line and to attain automatic test of the voice data of talkie by rewriting a digital talkie equipment installed to a remote station with the HDLC procedure. CONSTITUTION:A rewrite instructing device 21 sends an operating mode, a talkie channel number, a voice memory address, a transmission data number and a rewrite data as communication data to a rewrite controller 11. The controller 11 checks a transmission error by an FCS and when the data is normal, the address of a voice memory 12 is rewritten by a rewrite data. When a transmission error is detected by the check, the memory is verified during the data rewrite and when the discordance of data is detected, the status is changed and the communication data is returned to the device 21. The output of a relevant talkie channel is selected to be busy tone during the rewrite and the data in the memory 12 is outputted after the end.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is used for a talkie device rewriting method in which memory rewriting of a talkie device installed at a remote station is controlled from a central maintenance station, and is particularly applicable to digital talkie devices. This invention relates to a remote rewriting method for devices.

〔overview〕

The present invention provides a remote rewrite method for a talkie device in which voice data of a talkie device installed in a remote station is rewritten based on a rewriting instruction from a centralized maintenance station, and the present invention provides a rewriting instruction from the centralized maintenance station by data communication according to an HDLC procedure via a transmission line. By transmitting this and making the talkie device a digital talkie device that can rewrite the voice data in accordance with the sent rewrite instruction, it is possible to instruct the talkie device to rewrite the voice data without using a dedicated control line. At the same time, the aim is to improve maintainability.

[Conventional technology]

As a conventional talkie remote rewriting method, there is a remote talkie rewriting method for an analog talkie device. In the case of analog talkie devices, rewriting was instructed by an electrical level signal from a central maintenance station, and analog audio was sent to perform the rewriting.

[Problem that the invention seeks to solve]

In the conventional remote rewriting method of the analog talkie device mentioned above, rewriting instructions are issued using a dedicated control line, and since there is a limit to the number of dedicated control lines that can be accommodated at a central maintenance station, physical However, there was a drawback that the remote station's talkie device could not be rewritten without any restrictions. In addition, there were drawbacks in maintainability, such as erroneous rewriting occurring when data was abnormal in the transmission line, and automatic testing of voice data for talkies difficult.

An object of the present invention is to eliminate the above-mentioned drawbacks, thereby making it possible to issue rewriting instructions through a transmission line without using a dedicated control line, preventing the occurrence of erroneous rewriting, and facilitating automatic testing of audio data. However, the purpose of this invention is to provide a remote rewriting method for talkies.

[Means for solving problems]

The present invention includes a talkie device installed at a remote station that includes a storage means for storing audio data, and installed at a central maintenance station connected to the remote station by a transmission line, and instructs to rewrite the contents of the storage means. In the talki remote rewriting method comprising a rewriting instruction device, the rewriting instruction device is an HDL
It is configured to send a rewriting instruction signal for the audio data stored in the storage means by data communication according to C procedure,
The talkie device is a digital talkie device including a rewrite control device that receives a rewrite instruction signal from the rewrite instruction device according to an HDLC procedure and rewrites audio data in the storage means.

[Effect]

The rewriting instruction device issues an instruction to rewrite audio data through data communication according to an HDLC procedure (high-level data link control procedure) via a transmission path.

The talkie device receives this rewriting instruction by the rewriting control device according to the HDLC procedure, and rewrites the audio data stored in the storage means.

Therefore, rewriting instructions can be issued without using a dedicated control line, and it is also possible to easily prevent erroneous rewriting and automatically test audio data.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention.

This embodiment includes a voice memory 12 including voice memories (1) to (n) as storage means for storing voice data, and a talkie device installed at a remote station, which is connected to the remote station by a transmission path 30. In the talkie remote rewriting system, which is installed in a centralized maintenance station 20 and is equipped with a rewriting instruction device 21' that instructs to rewrite the audio data in the audio memory 12, the rewriting instruction device 21 is characterized by the present invention. ,
It is configured to send a rewriting instruction signal for the audio data stored in the audio memory 12 by data communication according to the HDLC procedure, and the talkie device receives the rewriting instruction signal from the rewriting instruction device 21 according to the HDLC procedure and writes the audio data in the audio memory 12. Rewriting control device 1 that rewrites audio data of
1. This is a digital talkie device 10 including 1. Note that the rewriting instruction device 21 and the rewriting control device 11 perform necessary communication in addition to the above-mentioned rewriting instruction using the HDLC procedure.

FIG. 2 shows a diagram from the rewriting instruction device 21 to the rewriting control device 11.
FIG. 4 is an explanatory diagram illustrating an example of communication data 40 in a frame format of an HDLC procedure. Here, F is a flag pattern (7EH), and )-ki channel number is the channel number of the talkie sound source of the digital talkie device 100, and corresponds to the voice memories (1) to (n). The operation mode instructs the rewrite control device 11 of the digital talkie device 10 to operate, and instructs OIH to rewrite data (rewrites the number of data specified as the number of transmitted data from the address specified as the voice memory address with rewrite data). 02) Verify with I (compare the number of data specified in the number of transmitted data from the address specified in the voice memory address with the test data), 03) Verify the digital talkie device by transmitting the frame received in return as is with I. 1
The voice memory address specifies the address of the voice memory 12 to be rewritten or tested. The number of transmitted data specifies the number of rewrite or test data transmitted from the rewrite instruction device 21, the rewrite data or test data specifies the rewrite or test data, and Fe2 is transmission error detection data.

FIG. 3 shows a diagram from the rewriting control device 11 to the rewriting instruction device 21.
FIG. 2 is an explanatory diagram showing an example of communication data 50 to.

Here, F and Fe2 are the same as the communication data 40. The talkie channel number, operation mode, voice memory address, and number of transmitted data are the same as those sent in communication data 40, and the status is rewrite control device 1.
1 operation status is displayed, 018 indicates normal rewriting, 02
．． Verification was completed successfully with I, received data was abnormal with 03, and 04. If a voice memory error occurs and a return instruction is issued, the rewritten data or test data of the received frame is placed in the status area and returned as is.

Next, regarding the operation of this embodiment (1) When rewriting data,
The explanation will be divided into three parts: (2) verification and (3) return.

(1) When rewriting data (talk channel 02H1 audio memory address OO00H number of transmitted data is set to 7FFFM).

The rewrite instruction device 21 sends the operation mode 01H1 talk channel number 02H1 voice memory address 0000n, the number of transmitted data 7FFFM, and the rewrite data (7FFFFl).
I byte) as the communication data 40, the rewriting control device 1
Send to 1. The rewrite control device 11 uses this communication data 4
When 0 is received, the transmission error is checked by Fe2,
If normal, the voice memory 12 of talki channel 028
Rewrite 7FFF□ bytes from address 0000H with the rewrite data. If there is a transmission error due to FCS check, set the status to 03□ and send communication data 5.
0 is returned to the rewrite instruction device 21. During data rewriting, verify the memory, and if a discrepancy in the rewritten data is detected, set the status to 048 and set the communication data to 50.
is returned to the rewriting instruction device 21. If the data rewriting is performed normally, the status is set to 0111 and the communication data 50 is returned to the rewriting instruction device 21. Note that while data is being rewritten, the output of the corresponding talkie channel is set to a busy tone, and after the rewriting is completed, the data in the audio memory 12 is output.

(2) The verification rewrite instruction device 21 sends the operation mode 02H1 talk channel number 02H1 voice memory address 0000□, the number of transmitted data 7FFFm, and the verification data (7F
FFH byte) is transmitted to the rewrite control device 11 as communication data 40.

When the rewrite control device 11 receives this communication data 40, it checks for a transmission error using Fe2, and if normal, the communication data 40 is sent as talkie 02. I's voice memory address 0000□
Check 7FFFM bytes from verify data. At this time, the output of the talkie is not blocked and remains in normal operation.

If a transmission error is detected by the FCS check, the status is set to 0311 and the communication data 50 is returned to the rewriting instruction device 21. If the verify operation ends normally, change the status to 02H1 If it ends abnormally, change the status to 04□
The communication data 50 is sent back to the rewriting instruction device 21.

(3) Operation mode 03. , talkie channel number, voice memory address as arbitrary data, number of transmitted data as 0010□, and rewriting data as AA55A
The 16-byte data pattern of A55 to AA55H is transmitted to the rewrite control device 11 as communication data 40. When the rewrite control device 11 receives this communication data 40, the F
A transmission error is checked by e2, and if normal, the received communication data 40 is transmitted as is. If there is a transmission error during FCS check, the status is changed to 03. The communication data 50 is sent back to the rewriting instruction device 21.

〔Effect of the invention〕

As explained above, the present invention prevents erroneous rewriting in the event of data abnormality in the transmission line and enables automatic testing of voice data of the talkie by rewriting the digital talkie device installed in the remote station using the HDLC procedure. This has the effect of eliminating the need for a dedicated control line.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of communication data transmitted from the rewriting instruction device. FIG. 3 is an explanatory diagram showing an example of communication data transmitted from the rewriting control device. DESCRIPTION OF SYMBOLS 10... Digital talkie device, 11... Rewriting control device, 12... Voice memory, 20... Central maintenance station, 21... Rewriting instruction device, 30... Transmission line, 40
．． 50... Communication data. Diagram

Claims (1)

[Scope of Claims] 1. A talkie device installed at a remote station that includes storage means for storing voice data; and a talkie device installed at a central maintenance station connected to the remote station by a transmission line, and capable of storing the contents of the storage means. In the talkie remote rewriting method, the rewriting instruction device is configured to send out a rewriting instruction signal for the audio data stored in the storage means through data communication according to an HDLC procedure, and The talkie remote rewriting system is characterized in that the talkie device is a digital talkie device including a rewrite control device that receives a rewrite instruction signal from the rewrite instruction device according to an HDLC procedure and rewrites audio data in the storage means.