KR100208237B1 - Method for continuously recording announcement message in a switching system - Google Patents

Abstract

The present invention relates to a method of continuous recording of announcement messages in an electronic switch system, the method comprising: a first step of determining whether a predetermined recording key signal to start recording is applied by an operator; A second step of determining whether silence is detected by comparing the detection signal level of the guide message applied with the recording key signal with a preset silence level; A third step of counting the message time and increasing the message number by one if silence is not detected; A fourth step of converting the applied guidance message signal into a parallel digital signal of a predetermined bit and storing it in correspondence with an increased message number to perform silence detection; A fifth step of stopping the message time count if the silence is detected, storing the counted message time corresponding to the increased message number, initializing the message time count, and returning to the second step; In the second step, if the silence is continuously detected for a predetermined time, the sixth step of terminating the guide message recording may be performed.

Description

How to record continuous announcements at an electronic switchboard

1 is a schematic block diagram of an electronic switching system including an announcement broadcasting device.

FIG. 2 is a block diagram of the announcement broadcast apparatus of FIG.

3 is a flowchart illustrating a continuous recording process of a guide message according to the present invention.

* Explanation of symbols for main parts of the drawings

100,200: access exchange subsystem 110: subscriber matching unit

120: relay line matching unit 130: time switch

140: local data link 150: announcement broadcasting device

300: interconnection network subsystem 310,320: central data link

330: space switch 400: central control subsystem

151: key input unit 152: announcement broadcasting control unit

153: A / D converter 154: Silence detector

155: serial / parallel conversion unit 156: temporary storage unit

157: guide message storage unit 158: bottle / serial conversion unit

159: output unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of recording an announcement message at an electronic switchboard. In particular, an announcement message for informing a caller of a failure state of a call connection occurring during call processing at an exchange is provided as a silent detection during recording. The present invention relates to a method of recording a guide message in an electronic switchboard, which automatically counts a message time guide message defense and continuously records the guide message.

In general, electronic switchboards have multiple distributed access switching subsystems (ASS) that perform most of the call processing functions, such as subscriber matching, relay line matching, time-sliced time slot interchange, and various signal generation and processing. And the Central Control Subsystem (CCS) responsible for operation and maintenance, network management, test measurement and billing, and between each Interchange Subsystem or between each Interchange Subsystem and Central Control Subsystem. It consists of Interconnection Network Subsystem (INS) which performs space switch connecting, number translation and relay routing control.

On the other hand, the Announcement Service at the exchange services Fixed Announcement and Mixed Announcement.

The fixed announcement is a basic voice service of the exchange.The announcement message to notify the caller of the failure of the call connection occurring during call processing, and the message related to special services such as missed notice and designated time notification, in detail, missed announcement , Designated time notice, number change guide, station code change guide, subscriber number call guide, call stop guide, troubleshooting guide, dial delay guide, link failure guide, call prohibition guide, call forward guide , Guide channel congestion guide message, etc., and the editable guide broadcast is an additional special guide broadcast service provided at the request of the user.

On the other hand, Figure 1 is a schematic block diagram of an electronic switch with such a fixed announcement device, a plurality of connection switching subsystem (100-200), interconnection network subsystem 300, central control subsystem 400 ).

The plurality of connection switching subsystems (100-200) includes a subscriber line matching unit (110) to which a plurality of general telephones or public telephones are connected and matched, and a relay line matching unit (Trunk) to match trunks for relaying with other exchanges. The connection and disconnection of the 110 and the time switch and the subscriber matching unit 110 and the relay line matching unit 120 and the local data link 140 and the guide broadcasting device 150 to be described later are input and output. And a time switch 130 performing an interchange function of time slot data.

In addition, the local data link 140 performs a high-speed data link over an optical link in order to connect with the interconnection network subsystem 300, and the announcement broadcasting device 150 is a call processing failure situation, missed guidance and Process guidance messages related to special services such as notification of designated time.

In the connection exchange subsystem 100-200 having such components, there is an upper processor (not shown) which controls the components overall, and the lower processors in each component perform their respective functions under the control of the upper processor. Matching with the switch 130 is connected by a PCM (Pulse Code Modulation) sub-highway cable in which a plurality of time slot data time-divided into a predetermined number of channels exist in one frame sink.

On the other hand, interconnection network subsystem 300 performs connections between all connection exchange subsystems 100,200 connected within the exchange, performs number translation and trunk line routing, and local data of each connection exchange subsystem 100-200. Spatial partition switching of time slot data from the central data link 310-320 via the local data link 140 .. for the link 140 and the optical fiber link to exchange the corresponding connection via the central data link 310-320. To local data link 140 .. of subsystem 100-200.

In addition, the central control subsystem 400 is connected to the interconnect network subsystem 300 to perform functions such as maintenance and billing of the exchange.

On the other hand, the interconnect network subsystem 300 and the central control subsystem 400 also perform their functions under the control of the upper processor, not shown, in each component, not shown.

The announcement broadcasting apparatus 150 in the switch having such a structure reads the related announcement message for the special service described above in response to the situation by using a subscriber telephone connected to a plurality of subscriber matching units 110. It transmits through (130 ..) and has the function of receiving and storing voice messages from outside to modify or add these messages.

On the other hand, when recording the announcement message in the announcement broadcasting apparatus in the conventional exchange, after inputting the number of one announcement message and the time of the announcement message separately, one announcement message is input through the microphone input or the cassette tape playback. It was possible to record by one guide message unit by input, therefore, when recording a plurality of guide messages there is a problem that takes a long time recording with the inconvenience of cumbersome key operation.

Accordingly, an object of the present invention is to automatically count the message number and message time when recording a plurality of guide messages in the electronic switchboard, so that the guide message in the electronic switchboard can conveniently record continuously without unnecessary key operation. It is to provide a continuous recording method.

According to an embodiment of the present invention, a method of recording a guide message in an electronic switching system includes: a first step of determining whether a predetermined recording key signal to be recorded is applied by an operator; A second step of determining whether silence is detected by comparing the detection signal level of the guide message applied with the recording key signal with a preset silence level; A third step of counting the message time and increasing the message number by one if silence is not detected; A fourth step of converting the applied guidance message signal into a parallel digital signal of a predetermined bit and storing it in correspondence with an increased message number to perform silence detection; A fifth step of stopping the message time count if the silence is detected, storing the counted message time corresponding to the increased message number, initializing the message time count, and returning to the second step; And the sixth step of terminating the recording of the guide message when the silence is continuously detected in the second step for a predetermined time.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a guide broadcast apparatus including a guide message recording apparatus according to the present invention, and includes a key input unit 151, a guide broadcast control unit 152, an A / D converter 153, and a silence detector 154. , Serial / parallel conversion unit 155, temporary storage unit 156, guide message storage unit 157, parallel / serial conversion unit 158, and output unit 159.

In the figure, the key input unit 151 is provided with a guide message recording key to modify or add and store a guide message used in the exchange, and outputs a key signal corresponding to the user's key operation.

The guide broadcast control unit 152 counts the guide message number and time according to a result of comparing the guide message detection signal level applied based on the guide message recording key signal from the key input unit 151 with a preset silence level. Controls the recording of the guide message and guide message time, and reads the guide message corresponding to the message number and the message time based on the guide service control signal from the upper processor, which is not shown in the figure, and as much as the message time read into the corresponding time slot channel. Control the output.

Also, the A / D converter 153 performs PCM modulation and output on analog voice digital voice data reproduced and applied from a microphone or a cassette tape under the control of the announcement broadcast control unit 152.

On the other hand, the silence detector 154 integrates the serial voice data from the A / D converter 153 for a predetermined time and applies it to the guide broadcast control unit 152 at the guide message signal level.

In addition, the serial / parallel converter 155 converts the digital voice data from the A / D converter 153 into a predetermined bit of parallel voice data based on the control from the announcement broadcast control unit 152 and outputs the same.

The temporary storage unit 156 temporarily stores and reads the audio data from the serial / parallel conversion unit 155 under the control of the announcement broadcasting control unit 152.

In addition, the announcement message storage unit 157 stores the voice data from the temporary storage unit 156 together with the counted message time from the announcement broadcast control unit 152 corresponding to the message number from the announcement broadcast control unit 152. Read out.

On the other hand, the bottle / serial converter 158 converts the voice data from the guide message storage 157 into serial voice data under the control of the guide broadcast control unit 152 and outputs the serial voice data.

Finally, the output unit 159 receives the audio data from the parallel / serial conversion unit 158 under the control of the announcement broadcast control unit 152 based on the frame sync signal from the time switch 130 and the reference clock signal. It is loaded on the corresponding timeslot channel and outputted to the time switch 130 as a sub highway.

Next, the guide broadcasting apparatus including the above-described configuration unit will be described in detail with reference to the flowchart of FIG. 3 attached with a guide message recording process according to a preferred embodiment of the present invention.

First, the operator starts recording the guide message by using the recording key for recording the guide message of the key input unit 151.

At this time, when the recording key signal is applied from the key input unit 151 (step 300), the broadcast control unit 152 performs mute detection.

In more detail, after the recording key operation of the key input unit 151, the operator inputs one guide message at a predetermined interval through the microphone to the input terminal of the A / D conversion unit 153 or the guide message is input at a predetermined interval. Play the cassette tape recorded continuously and input the guide message to record continuously.

Then, the announcement broadcast controller 152 controls the A / D converter 153 to convert the applied analog voice signal into digital voice data.

At this time, the silence detector 154 receives serial digital voice data and detects the integral for a predetermined time and applies the DC level to the announcement broadcast control unit 152.

Then, the announcement broadcast control unit 152 determines whether silence is detected by comparing the guide message signal level applied with the preset silence level (a threshold signal level that determines that no sound is included) (step 302).

At this time, when the detected guidance message signal level is greater than the preset silence level, that is, when the guidance message is applied with a real voice greater than the preset silence level, the guidance message is recognized to start and a predetermined value for counting the message time is raised. A count of steps (step 304).

Next, the announcement broadcast control unit 152 accumulates and increments the message number from the initial value '0' to '1' in order to automatically assign the message number (step 306).

On the other hand, the serial voice data from the A / D converter 153 is applied to the serial / parallel converter 155, and the serial voice data applied by the serial / parallel converter 155 has a predetermined bit (8 bits). Converted to parallel voice data and output.

Next, the parallel voice data is temporarily stored in the temporary storage unit 156 under the control of the announcement broadcasting control unit 152, and is read out and applied to the announcement message storage unit 157.

Then, the announcement message storage unit 157 stores the parallel voice data from the temporary storage unit 156 in the corresponding position set corresponding to the increased message number under the control from the announcement broadcast control unit 152 (step 308). ).

In addition, the silence detector 154 integrally detects the signal level of the guide message that is continuously applied to detect an end point of one guide message, and the guide broadcast control unit 152 continues to preset silence level and the guide message signal applied. The levels are compared (step 310).

At this time, if the guide message signal level is greater than the preset silence level, that is, if no silence is detected, it is recognized that one guide message is continuously applied, and the guide message converted into serial digital voice data is converted into parallel voice data. The guide message continuously applied is stored in the guide message storage unit 157.

On the other hand, when the guidance message signal level detected in step 310 is smaller than the preset silence level, that is, when silence is detected that is not the actual voice, the input of one guidance message is stopped and the message time count is stopped. (Step 312).

Next, the announcement broadcast control unit 152 applies the counted message time to the announcement message storage unit 156 and stores the message time as the message time corresponding to the message number increased in the step 306 (step 314).

Next, the message time count is initialized to store the next guide message continuously applied (step 316), and the process returns to step 302 to continue the above-described guide message storing process.

On the other hand, even if the predetermined time set in step 302 has elapsed (step 318), if silence is detected continuously, it is recognized that the input of all guide messages has been completed, and this routine, which is a continuous storage process of guide messages, ends.

On the other hand, when the guide messages are stored in the guide message storage unit 157 for each type through the above-described process, the exchange transmits the guide message to the corresponding subscriber phone according to the situation and performs the guide broadcast. It is as follows.

First, the guide broadcast control unit 152 reads a guide message under the control of a higher processor, not shown. First, the guide message control unit 157 reads out the guide message.

Then, the parallel voice data read out from the guide message storage unit 157 is converted into serial voice data by the parallel / serial converter 158, and applied to the output unit 159 again.

Next, the output unit 159 corresponds to the control of the announcement broadcasting control unit 152 and the frame synchronization signal from the time switch 130, and the audio data from the parallel / serial conversion unit 158 based on the reference clock signal. It transmits the time of the message counted and stored on the time slot channel to the time switch 130 through the sub highway cable, and the subscriber can listen to the guide message by the handset of the telephone based on the time slot interchange of the time switch 130. It becomes possible.

As described above, according to the present invention, when the announcement message used in the electronic switchboard is recorded, the start and stop of input of the announcement message are determined as the signal level of the authorized announcement message, and the message number and message time are automatically counted. There is an effect that can provide the convenience of recording a plurality of announcement messages continuously and conveniently and quickly.

Claims (1)

CLAIMS What is claimed is: 1. A method of recording a guide message in an electronic switchgear, comprising: a first step of determining, by an operator, a predetermined recording key signal to be recorded is applied; A second step of determining whether silence is detected by comparing the detection signal level of the guide message applied with the recording key signal with a preset silence level; A third step of counting the message time and increasing the message number by one if silence is not detected; A fourth step of converting the applied guidance message signal into a parallel digital signal of a predetermined bit and storing it in correspondence with an increased message number to perform silence detection; A fifth step of stopping the message time count if the silence is detected, storing the counted message time corresponding to the increased message number, initializing the message time count, and returning to the second step; And a sixth step of terminating the recording of the announcement message if the silence is continuously detected in the second phase for a predetermined time.