KR0147346B1 - Apparatus of assigning the manual automatic combined channel number by double buffer - Google Patents

Abstract

According to the present invention, two buffers having the same function can be arranged in a pair of 1: 1 and manual control and automatic control by a separate control unit 1 can be performed when necessary, and the function can be maintained even in the absence of the control unit 1. The purpose of the present invention is to provide a modulation channel number providing device which increases the reliability and availability of the system by designing the system.

In order to achieve the above object, the present invention, the control unit (1) for controlling the setting of the channel number and the provision of the channel number in accordance with the report and the setting command of the channel number of the modulation system detected through the communication connection with the network management device; Binary coding in modulation system with 3-state as buffer selection circuit and opening / closing buffer so that output of double buffer is intermittent under operating mode (automatic / manual) set by operator's operation with BCD switch and control mode switch And a channel number providing unit (2) composed of buffer circuits for supplying the modulated channel number.

Description

Device that provides number / automatic compound channel number by double buffer

1 is a block diagram of a number / automatic composite channel number providing apparatus by a double buffer according to the present invention,

2 is a detailed configuration diagram of the control unit.

* Explanation of symbols for main parts of the drawings

1: control unit 2: channel number providing unit

11: central processing unit 12: storage unit

13: Address decoder 14: Channel number input buffer

15: communication controller 21: control mode switch

22: BCD switch 23: buffer selection circuit

24, 25: double buffer

The present invention provides a device for providing a frequency channel number for a modulator system in which a manual frequency channel number setting by a modulation system operator or an automatic frequency channel number setting by a network management device (NMS) and a control board can be selectively operated. It is about.

In general, the channel number required by the modulation system is designed to be set manually by the operator using a binary coded decimal (BCD) switch for the purpose of permanently using the channel number. However, in the case where a system design for a situation where the channel number is frequently changed is required, the system design can be accommodated by an operator as well as automatic change and setting by a system such as a network management apparatus. Is required. Dual buffering and control methods are needed in order to set up and provide modulation channel numbers that can exist individually for this purpose within the same area as control by one control system.

Accordingly, an object of the present invention is to provide a modulation channel number providing apparatus using a double buffer, in which a manual setting and an automatic setting are selectively used as a setting method of two modulation channel numbers, and a channel number set in the absence of a control board does not change. have.

In order to achieve the above object, the present invention provides a report and a setting command of a use channel number of an external modulation system sensed by an operator through a communication connection with a network management device capable of operating and recognizing a use modulation channel number. Control means for controlling the setting of the channel number and the provision of the channel number according to the control unit, and under the control of the control means, by directly receiving a control mode command of the operator to selectively open and close the double buffer under the set automatic / manual operation mode And channel number supply means for supplying a binary coded modulation channel number to the modulation system.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

First, the concept of the modulation channel providing method used in the present invention will be described.

1) Manual setting: If the system operator manually switches the method setting switch in the channel number providing part manually, and then inputs the numbers from 0 to 9 of the three BCD switches corresponding to each one, ten, and hundred digits. By setting, the modulation channel number is provided to the modulator through the passive BCD buffer.

2) Auto setting: When the system operator automatically switches the method setting switch on the channel number providing part automatically, 0 ~ 9 corresponding to each one, ten and hundred digits using the network management device at the remote place. By inputting the number up to the control operation of the control unit and the channel providing unit to supply the modulation channel number to the modulator through the automatic NMS buffer.

Now, the configuration and effect of the present invention which can provide the modulation channel number by such manual / automatic will be described in detail.

1 is a block diagram of a number / automatic composite channel number providing apparatus according to the present invention.

As shown in the figure, the present invention is largely, a control unit (1) connected to a network management device (NMS), which is a computer system for transmitting and receiving messages through a communication connection to enable the channel number setting and change of a modulation system by an operator's operation. ), And a modulation channel number providing unit 2 by a double buffer, the specific configuration and operation thereof are as follows. First, the network management apparatus (NMS) of the operator side connected to the control unit 1 has an input / output terminal that can be connected to the control unit 1 for setting the modulation channel, and monitors and keyboards to support the operation and recognition of the operator. As a computer system equipped with a control channel number setting operation is performed by the operator within the modulation channel number setting screen implemented by the internal software, the control unit (1) through inter-system communication with the control unit (1) By sending a command message to 1) and receiving a response message from the control unit 1, control management for the double buffer is performed.

As shown in FIG. 2, the control unit 1, which is connected to the network management apparatus as a component of the present invention, includes a central processing unit (CPU) 11 in charge of software processing, and a storage element in which a system program resides. A communication controller, which is a connection terminal between a storage unit 12 including a ROM and a storage element (RAM) storing data, an address decoder 13, a channel number input buffer 14, and a network management device. (15), look at how these components work in conjunction with the channel number providing unit (2) and the network management device as follows.

The central processing unit 11 is connected to the storage unit 12 by the 8-bit data buses D0 to 7 and the address buses A0 to 7, and operates according to a program resident in the storage element ROM. The chip select signal (*. / CS) of the address decoder 13 is output in accordance with the address of each component that is its output so that the communication controller 14, which is the connection terminal between the channel number input buffer 13 and the network management apparatus, is used. Is cracked down. In addition, the NMS is inputted and outputted to the storage unit 12 or the communication controller 14 through the data bus, respectively, and the NMS is inputted to the NMS buffer 24 in the channel number providing unit 2 described later. The Sel_N signal for selecting the buffer 24 is output to the data bus D0, and then the data is written to the NMS buffer 24 via the CHID_DAT (0-11) _WR bus and the selection signal / WR is output at the same time.

In addition, when the BCD buffer 25 is selected, the Sel_B signal is output to the data bus D1 so that the preset BCD value can be used even in the automatic setting method.

The storage element ROM in the storage unit 2 provides a storage space for the resident program of the control unit 1, and the storage element RAM stores the calculation result by the central processing unit 11 of the control unit 1. Provide storage space for

The communication controller 15 converts the command message received through serial communication having the network management device (NMS) to the RS-232C signal level into a parallel data and transmits the data to the central processing unit 11. In order to transmit the modulation channel number currently used, the parallel data, which is a message from the central processing unit 11, is converted and output for serial communication. The communication controller 15 includes a TTL-RS232C signal level converter in construction.

The use channel number input buffer 14 converts its address output from the central processing unit (CPU) 11 of the control unit 1 into the chip select signal via the decoding circuit 13, and then inputs the connected CHID_DATA ( 0 ~ 11) _Displays modulator channel signal currently in use via RD bus.

On the other hand, the channel number providing unit 2 connected to the control unit 1 inputs and outputs by the pair of double buffers 24 and 25 for providing the channel number and the chip select signal (/ CS) signal of the central processing unit 11. And a double buffer selection circuit 23, a control mode switch 21, and a BCD switch 22. Looking at how these components operate through the connection of the control unit 1 and the modulation system (not shown) in detail as follows.

The buffer selection circuit 23 logically combines the output Sel_N / Sel_B and the NMS / BCD signal, which are the outputs of the control mode switch 21, inputted from the control unit 1 inputted through the connection with the control unit 1 as follows. Simultaneously outputs En_N opening the buffer 24 and / Dis_B closing the BCD buffer 25 so that the NMS channel number written by the control unit 1 is output to the modulator system, and closing the NMS buffer 24. By simultaneously outputting Dis_N and En_B opening the BCD buffer 25, the BCD channel number is output to the modulator system in the manual mode, so that one of the double buffers is necessarily selected.

1) En_N / Dis_N = NMS Sel_N En_B '

2) En_N / Dis_B = (BCD # (NMS Sel_B)) En-N '

Here, 'denotes an NOT operation, denotes an AND operation, # denotes an OR operation, En_N' = Dis_N, and En_B '= Dis_B.

The double buffers 24 and 25 are NMS buffers 24, which are 3-state buffers that open and close the CHID_DATA (0 ~ 11) output by the control unit 1 through En_N / Dis_N control signals through a physical connection with the redundancy control unit. ) And BCD buffer (25), which is a 3-state buffer that is intercepted by En_B / Dis_B control signal, and CHID_BCD (0 ~ 11), which are outputs of BCD switch 22, are output as one and control signal according to the set control mode. It receives the input and outputs the channel number to the modulator system.

The control mode switch 21 outputs an NMS / BCD signal to the buffer selection circuit 23 as a switch that can be operated by an operator to select a buffer.

The BCD switch 22 has a total of 12 (0 to 0 bits), each of 4 bits in the upper bits (MSD), the middle bits (SD), and the lower bits (LSD) of the modulator channel number that can be set by the operator in the manual mode. The bit 11) is output to the BCD buffer 25.

Therefore, the present invention configured and operated as described above requires a control mode setting switch and a BCD of one channel number providing system when any system requires a modulator channel number supply system by a combination of manual and automatic configurations. Switch, double buffer control board and network management system (NMS) can be used to supply the required channel number to the modulator system under the required configuration. In particular, it is possible to increase the flexibility and availability of the system by enabling manual setting by the operator and automatic setting at the remote place by the NMS.

Claims (5)

Channel number setting and channel number provision according to command and report of channel number of external modulation system detected through communication connection with network management device that can recognize operation modulation channel number and channel number setting by operator Control means 1 for controlling the control unit, and under the control of the control means 1, and directly receiving the control mode command of the operator to selectively open and close the double buffer under the set automatic / manual operation mode to the external modulation system And a channel number supply means (2) for supplying a binary coded modulation channel number. The control means (1) according to claim 1, wherein said control means (1) transfers the network management device and the received command message into the control means (1), and the message on the control means (1) side for transmission of the modulation channel number currently used. And a communication controller 15 for outputting the signal to the network management device, a channel number input buffer 14 for receiving and outputting a modulator channel number currently being used when receiving a chip selection signal as a control signal, and storing a resident program. And an address decoder 13 for receiving an address signal and an address signal for outputting a chip selection signal to the communication controller 15 and the channel number input buffer 14, and the memory means (12). 12, and outputs an address to the address decoder 13, inputs and outputs the calculation result data to the storage means 12 or the communication controller 14, respectively, and provides the channel number providing portion 2. Line buffer The number / composite channel number is automatically provided apparatus comprising a central processing unit (11) to transfer data. The central processing unit (100) of claim 2, wherein the communication controller (15) converts a command message received through serial communication with an external network management device to the RS-232C signal level to parallel data. TTL-RS232C signal level for converting and outputting parallel data, which is a message from the central processing unit 11, for serial communication, to the terminal 11 for transmission of the modulation channel number currently used. A number / automatic composite channel number providing device comprising a converter. 3. The channel number providing unit (2) according to claim 2, wherein the channel number providing unit (2) comprises a control mode switch (21) for outputting a signal (NMS / BCD) for selecting a buffer by an operator's operation, and set by the operator in a manual mode. By the control means 1 by logically combining the output of the control mode switch 21 with the BCD switch 22 for outputting the bit of the modulator channel number. A buffer selection circuit 23 for allowing the written network management device channel number to be output to an external modulator system or to allow a BCD channel number to be output to the external modulator system in a manual mode, and the control means 1 A double buffer means (24, 25) for outputting the channel number data to be output to the external modulation unit system according to the selection signal of the buffer selection circuit (23). Channel number Providing device. The total number of bits (0 to 11) according to claim 4, wherein the BCD switch 22 has 4 bits each of the upper bits (MSD), the middle bits (SD), and the lower bits (LSD) of the modulation channel number. Number / automatic composite channel number providing device, characterized in that configured to output to the double buffer means (24, 25).