JPS58151182A - Picture storage and transmitting device - Google Patents

Abstract

PURPOSE:To attain picture transmission with instant response at any time to an output request from an output control section, by providing two memory devices storing the same picture information and making one memory device in waiting for the picture transmission at all times even during the diagnosis of failure. CONSTITUTION:A changeover switch SW3 of a channel multiplexer 2 is selected to the A channel (a) and picture information is transmitted from a memory 1A of the channel A to an output controller C3 via the switch SW3, then an output request signal r2 is generated from an edition output controller C2, a system controller 3 receives it and gives a switching control signal (q) to the B channel (b) to a changeover switch SW2 of the multiplexer 2. The failure diagnosis by a test data generation and check circuit 6 is executed when both the memories 1A, 1B are not used, either one of the memories 1A, 1B is made inoperative (waiting state), allowing to respond instantly to an output request signal r3 for ON-AIR from the output controller C3 instantly at any time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an igI storage and transmission device comprising two memory devices each storing the same image information. A single memory device is used to transmit the ll1I image in combination with a video file or an audio file such as a floppy disk.

In order to compensate for the occurrence of a transmission accident, a spare magnetic disk is provided in addition to the current magnetic disk, and the same data is stored on each disk. , manually switch to a spare magnetic disk and continue sending.

However, since the switch is made after detecting the occurrence of an accident, it is impossible to prevent a delivery accident from occurring, although it is for a short time.

In view of the above-mentioned problems, the present invention aims to prevent transmission accidents from occurring. Hereinafter, embodiments of the present invention will be explained with reference to the drawings. The drawings show the entire image storage and transmitting system to which the present invention is applied. This is the block diagram of F77Mgl! The system includes two channels of magnetic disk memory (IAXIB), which store the same image and audio information and are always operated in parallel. Each memo IJ-(IA) (1B) has a plurality of magnetic disks, for example, two magnetic disks A, A2 and B1.
．． Equipped with Bffi. Storage of video or audio information is performed through the input controller C1. Outputting information is performed for multiple output systems, for example, output controllers C3 to 04, output controller C2 are provided for editing output, and output controller C1 is provided for on/off output.
Provided for air delivery and output controller C4
is provided for transfer output to a VTR, floppy disk, etc., for example. Each controller C1 to C4 is
The terminals are branched out to various parts within the station.

Each controller C7-C4 is coupled to each memory (IA) (IB) via a channel multiplexer (2) comprising two-channel changeover switches SW, -SW4. The input controller C1 receives an input video signal S.

It is equipped with a converter that converts the signal into A/D and a solid-state memory (buffer memory) that temporarily stores the converted signal. The controllers 02-C4 are also equipped with similar solid-state buffer memories and D/A converters, and derive analog or digital video outputs 8,-84. The entire system is controlled by the system controller 31, e.g. Sending a switching control signal q to the channel multiplexer (2) in response to an input (write) command signal p or an output (read) request signal r2 to r4 generated from a controller in the terminal or output terminal, 01 to C4; Give an operation command signal U□ and a signal to the memory (1 person) (1B).

For reading from the memories (IA) (IB), priority is given to the output request signal r from the output controller C1 for on-air transmission. With conventional equipment, on-
When an output system for air delivery is in operation, output requests or input commands from other output systems or input systems will not be accepted, and data transmission processing for the output system for on-air has finished. Then, the operation of another output system or input system is started.

Therefore, waiting times may occur.

In the system of this embodiment, for example, the channel multiplexer (21 changeover switches 8W,
(Maro) is connected to the whiplash channel's main% II - (
1 person) to the output controller 0 via switch ff,
sJ(-) When the output request signal r2 is generated from the editing output controller C2 while the image information is being sent,
The system controller +31 accepts this and sends a switching control signal q to the B channel side (bl) to the changeover switch of the multiplexer (2).
The continuous output of the channel memory (IB) is sent to the output controller C7 via the switch SW.

In other words, it is possible to simultaneously satisfy the output requests of two systems without waiting time.

When on-air transmission is performed from the channel memory (1B), another output system is read from the A channel memory (1 person). Even if readout is being sent to output controller C2 or C4 (III4 collection or transfer, etc.), the on/off to output controller 02 can be performed without interrupting this sending.
Air delivery can be prioritized and interrupted.

Furthermore, if an input command signal p is generated from the input controller C1 while performing continuous output to any one of the output controllers 02 to 04, the system controller 131 receives it and outputs the continuous output. Input signal 8. The channel multiluxer (2) is controlled so that the embedding is performed.

For example, if a storage command occurs while continuous transmission is being performed from the A channel memory (one person) to the on-air output controller C5, the selector switch 8W of channel multiplexer +21 will be switched to the B channel side (bl). Connected t, the digital conversion data of the input signal S is sent from the input controller C4 through the switch reservoir to the B channel memory (1B).The A channel memory (IA)!p also needs to store the same data. Therefore, when the reading and sending from the A channel memory (one person) to the output controller C3 is completed, selector switch s
w is switched to B channel @l (b) J is switched,
The B channel memory (1B) is made ready to send out images for on-air. In this state, the selector switch of multiplexer (2) is set to A channel (a).
The same data stored in the B channel memory (1B) is also stored in the A channel memory (1 person).

In other words, you can add new information without waiting even if there is a lot of information coming out.

Multiplexer (2) selector switch SIV, ~SW
The switching control signal q of No. 4 is the system controller +31
The memo 13-(IA) (IB) is created with reference to the operation command signal uAuB. For example, Memo Q-
If you are using (IA) and not using the memory l - (IB), refer to the signal "B (inversion of uB),
If output request signal r2 is generated from output controller C2, switch I! A switching control signal q is generated which simply connects IIW2 to the B channel.

If none of the memories (IAXIB) are being used, a fault diagnosis control signal t (= u, -uB) is sent from the system controller (31) to the test data generation/check circuit (6). Test data is generated in the test data generation and check circuit (6), and is sequentially written to the memory IJ-(IAXIB) through the input controller C4 and changeover switch history 1.

Next, the data that was not written is continuously output, and the output test data is transferred to the changeover switch reservoir 9 and the input controller C.
4 and is returned to the test data generation/check circuit 16).

The test data generation/check circuit (6) discriminates between the written test data and the read test data to determine whether or not the memory (1 person) (1B) operates normally. Diagnose ◇If a failure occurs, the display (7A07B) will show whether the magnetic disks A4, A2
．． B, , the force at which the throat force of B2 failed) is displayed. Along with the stiffness, data indicating a failed disk is sent to the system controller (31), and a switching control signal for the changeover switches SW to SW4 of the multiplexer (2) is formed so that information is read from a normal magnetic disk. That is, It is possible to detect a failure before it is discovered during on-air, and change the memory in advance to prevent a transmission accident from occurring.

For example, if the magnetic disk A of the A channel memory (one person) fails and the magnetic disk B of the B channel memory ζj-(1B) fails, the normal disk B.

A combination of memory operation and switch 8. by the system controller; switching control is performed.

Fault diagnosis by the test data generation/check circuit (6) is performed when both memories (IAXIB) are not in use, as described above. This is a memo IJ during trouble diagnosis.
- Some of (IA) and (IB) are left in an unused state (standby state) so that they can respond to the output request signal r for on-air from the output controller C5 at any time. This is for the purpose of Therefore, if any one of the input command signal p or the output request signals r2 to r4 is generated during failure diagnosis, the diagnosis is interrupted and the memo +7-(
Diagnosis is performed again when both IA) and (IB) are free.

As described above, the present invention provides at least one system of controller (controller O7) for writing to the @1 and second memory devices (IA and IB) that respectively store the same 1ibi image information. A plurality of output control systems S (controllers 02 to 2) for bladder evacuation are provided, and the first and second memory devices are selectively stored in the distance control section and the evacuation control section, respectively. 411 is configured so as to be connected to. In addition, a fault diagnosis circuit (61 has been removed and both the first and second memory devices are unused) is used to continuously output test data to the memory device and distinguish between normal and abnormal memory functions. The system is sometimes configured to perform fault diagnosis.

Therefore, according to the present invention, even during fault diagnosis, one of the memory devices is always on standby for sending out the other memory device.

It is possible to immediately respond to an output request from the output control unit and send out an image at any time.
It is possible to prevent an image transmission accident from occurring during a live broadcast.

[Brief explanation of drawings]

The drawing is a block circuit diagram of an image storage and transmission device showing an embodiment of the present invention. In addition, in the symbols used in the drawings, (1A) (IB)......Magnetic disk memory (2)...Channel multiplexer 13 )・－・・・・・・・・・・・・
...System controller (6) ...
・−・−・・Test data generation/check circuit fM
,~fish-----switch, one 0,...
......Input controller C3-C4・
-...-Output controller r, ~r4...
...This is an output (continuous) request signal. Agent Yoshio Tsuneko

Claims (1)

[Scope of Claims] 1. First and second memory devices each storing the same art and entertainment information, at least one system of input control section for supplying write heavy input information to each of the memory devices, and each of the above A series of memory devices (a plurality of systems of output control sections for deriving outputs are provided, and the first memory device and the second memory device are selectively connected to each of the input control section and the output control section) a control circuit that receives a write\command signal or a continuous N request signal from the input control section and output control section to switch and control the changeover switch circuit; and the first and second memory devices. and a fault diagnosis circuit that writes test data to and reads out the test data to detect whether the memory function is normal or abnormal, and when both the first and second memory devices are not in use, the control circuit An image storage/transmission device configured such that the failure diagnosis circuit is operated by control. 2. Switching for selecting the normal one of the first and 11g2 memory devices from the control circuit based on the output of the failure diagnosis circuit. The image storage/transmission device according to claim 1, wherein a control signal is supplied to the changeover switch circuit. 3. A write/command signal or a read request is received from the input control section and the output control section. 2. The liigI! storage and output device according to claim 2, wherein the control circuit stops the operation of the failure diagnosis circuit when a red signal is generated.