JPH0779301B2 - Portable microwave repeater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention transmits a signal for identifying a device or a signal indicating a state of a device between portable microwave repeaters (commonly called FPU devices), The present invention relates to a display device.

[Summary of the Invention] According to the present invention, the identification of an FPU device, which has been insufficient in the prior art, is performed by inserting a message signal by an input from a keyboard or the like and a signal regarding a pre-registered attribute into a vertical blanking period of a transmission video signal. Or, a signal indicating a state detected on the receiving side so that the receiving side can monitor the state of the transmitting side, which is not in the prior art, is inserted in the vertical blanking period of the transmitted video signal to perform microwave transmission. By extracting the message signal, the signal relating to the attribute, or the signal for knowing the transmission state from the video signal after reception demodulation, and superimposing it on the received image, the transmitter is identified or the transmission state is grasped. It is a thing.

[Conventional technology]

Conventionally, there has been no means for the receiving side to identify the attributes of the sending side in the FPU device. As a means close to this method, station name characters were sometimes superposed on a test video signal (color bar signal) sent by a transmitter for setting a transmission line.
This was effective only when the line was set up for identification to avoid line duplication between the local station and other stations.

Conventionally, in normal operation, the attribute of the device on the transmitting side cannot be identified by the receiving side. Therefore, especially when trying to produce a program such as multiple relay that has multiple transmitting sources, the program producer receives There was no choice but to estimate a specific source from multiple received images or received audio contents and make a judgment, which was an intervening route during program production for the purpose of accuracy and speed.

In addition, conventionally, as a means for confirming the state of the device, the output power, the video / audio level, etc. are displayed by a level meter on the operation panel surface and the alarm lamp for displaying the transmission power drop, the power supply voltage drop, etc. It had only functions. All of these are displayed on the operation panel surface, and when the installation location of equipment such as a base station (usually on the transmission / reception antenna tower) and the monitoring location (usually inside the station building) are far apart There were many inconveniences.

Further, it is not possible for the receiving side to grasp the state of the transmitting side and manage the transmitting side unattended because the prior art does not have a means for confirming the transmitting state.

[Problems to be Solved by the Invention]

In the prior art, there was no means for transmitting the attributes (station name, used channel, transmission power, device number, etc.) of the transmitter and the message (source name, other contact information). Further, there is no means for displaying detailed information of the device, and there is no means for transmitting information of the device.

The present invention solves these drawbacks by newly providing a means for transmitting a signal for device identification or a signal indicating the state of the device, and the receiving side can easily identify the transmission source or the device state. It is an object of the present invention to provide a microwave relay device capable of grasping.

[Means for Solving the Problems]

FIG. 1 is a block diagram showing the attributes of the transmitting device and the overall configuration for transmitting a message according to the present invention. Ten
1 is a message setting means including a keyboard,
102 is attribute setting means preset in ROM or the like, 103 is information transmitting means for inserting the set message and attribute within the vertical blanking period of the transmitted video signal, and 104 is the set message and transmitted video signal And 105 is a modulation circuit for converting the transmitted video and audio signals into microwaves, which constitute the transmission side. On the receiving side, 106 is a demodulation circuit that restores video and audio signals from microwaves, 107 is an information restoration unit that extracts identification signals and the like from the demodulated video signals, and 108 is a received video signal that is the extracted identification character signals and the like. It is a character multiplex means to be superimposed on.

Further, FIG. 5 is a block diagram showing an overall configuration in the case of transmitting / displaying a signal indicating the state of the transmitting apparatus in the present invention. Reference numeral 201 is an analog-to-digital converter, etc., and is information detecting means for detecting information necessary for the management and operation of the device such as voltage and level of each part of the transmitting section, 202 is the detected information as character information in the transmission video signal. A character multiplex means for superimposing, 203 is an information transmitting means for inserting information within a vertical blanking period of a transmission video signal, and 204 is a transmission section for converting a video and an audio signal into a microwave, which are connected to the transmission side. Constitute.
On the receiving side, 205 is a receiving unit that demodulates video and audio signals from microwaves, 206 is an information restoration unit that extracts transmission information from the demodulated video signal, 209 is an information detection unit that detects information for the received signal, Reference numeral 207 is a switch for transmitting and receiving information, and 208 is a character multiplex means for superimposing the transmitting information or the receiving information on the received video signal.

[Action]

The operation of the present invention is that the attribute set by the message setting means 101 and the attribute setting means 102 and the information identification signal of the message are converted to microwaves through the modulation circuit 105 inserted in the video signal to be transmitted by the information transmitting means 103. It is transmitted from the transmitting side to the receiving side. On the receiving side, the identification signal on the transmitting side is multiplex-displayed as character information on the received video signal via the demodulation circuit 106, the information restoring means 107, and the character multiplexing means 108. As a result, the attribute of the transmitter and the message can be read as text information on the receiving side, and even if there are a plurality of transmission sources, the transmission source can be easily specified.

Further, the function of the present invention is that the information of the transmitting section detected by the information detecting means is multiplexed and displayed as character information on the transmission video signal by the character multiplexing means, and is inserted into the video signal to be transmitted by the information transmitting means 203. The signal is transmitted to the reception side as microwaves via the transmitted transmission unit 204. On the receiving side, the receiving unit 20
5, the information on the transmitting side is displayed as character information on the received video signal through the information restoring means 206, the switching device 207, and the character multiplexing means 208, and the state of the transmitting side can be grasped. If necessary, the switching device By switching 207, it is also possible to display the information of the receiving side itself via the information detecting means 209.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. On the transmitting side, a message signal is input by the keyboard 1 and read by the microcomputer 3 via the serial interface circuit 2. At the same time, signals relating to device-specific attributes registered in ROM 4 in advance are read.

These signals are output as character signals via the CRT controller 5, are multiplexed by the mixer 6 with the video signal to be transmitted, and serve as a transmission video monitoring output. On the other hand, the message signal and the attribute-related signal fetched by the microcomputer 3 are controlled by the VITC (time code within vertical blanking period) generator 7 and VITC inserter 8 within the vertical blanking signal period of the video signal to be transmitted. Inserted in. At the same time as the other audio signal to be transmitted of the transmission video signal in which the message signal and the attribute signal are inserted, the modulator 9 modulates the signal into a microwave band signal and radiates it as a radio wave from the parabolic antenna.

On the receiving side, the microwave is received by the parabolic antenna and demodulated by the demodulator 10. The vertical blanking of the demodulated received video signal
Take out with TC reader 11 and read with microcomputer 12. The read identification signal is converted into a character signal by the CRT controller 13 and multiplexed by the mixer 14 with the received and demodulated video signal to be a reception monitor video signal output.

FIG. 3 and FIG. 4 are flowcharts showing the operations of the transmitting side and the receiving side described above, respectively.

Next, another embodiment of the present invention will be described with reference to FIG. On the transmitting side, information necessary for management and operation such as the voltage and current value level of each part of the transmitting portion 27 is converted into a digital amount by the analog-digital converter 21 and taken in by the microcomputer 22. Information captured is CRT
It is output as a character signal via the controller 23, is superimposed on the video signal to be transmitted by the mixer 24, and becomes a video signal output for monitoring the transmission state. On the other hand, the information captured by the microcomputer 22 is converted into a VITC signal via the VITC generator 25, and the VITC inserter 26
Is taken into the transmission video signal by the, and converted into a microwave together with the audio signal in the transmission unit 27 and radiated by the parabolic antenna.

On the receiving side, the receiving unit 28 demodulates the video and audio signals from the microwave. The VITC signal of the demodulated video signal is separated by the VITC reader 29 and taken in by the microcomputer 30. The fetched information on the transmission side is output as character information to the mixer 32 via the CRT controller 31, is superimposed on the received video signal, and becomes a reception monitoring video signal. This makes it possible to recognize the transmission information as characters in the reception monitoring image.

Further, by switching the switch 33 and giving an instruction to the microcomputer 30, the analog-digital converter 34
It is also possible to superimpose the information of the receiving unit itself read in step 3 on the received image and display it.

7 and 8 are flowcharts showing the operations of the transmitting side and the receiving side described above, respectively.

〔The invention's effect〕

According to the present invention, it becomes easy for the receiving side to identify a specific transmission source, and it is possible to produce programs quickly and accurately.

Further, the state of the device can be grasped as the character information superimposed on the transmitted or received image, and the state of the transmitting side can be known on the receiving side, and the unmanned operation of the transmitting side is also possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of the present invention, FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIGS. 3 and 4 are flow charts showing the operation on the transmitting side and the receiving side, respectively. FIG. 5 is a block diagram showing the overall structure of the present invention, FIG.
FIG. 7 is a circuit diagram showing one embodiment of the present invention, FIG. 7 and FIG.
The figures are flowcharts showing the operations of the transmitting side and the receiving side, respectively. 1 ... Keyboard, 2 ... Serial interface, 3,1
2,22,30 …… Microcomputer, 4 …… ROM, 5,13,23,3
1 …… CRT controller, 6,14,24,32 …… Mixer, 7,25 ……
VITC generator, 8,26 …… VITC inserter, 21,34 …… Analog-to-digital converter, 27 …… Transmitter, 28… Receiver.

Claims (4)

[Claims] 1. A means for setting a signal (hereinafter referred to as an identification signal) relating to an attribute of a device on a transmitting side, and a means for inserting the set identification signal into a vertical blanking period of a transmission video signal for transmission. A portable microwave relay device comprising: a receiving side, and a means for displaying the received identification signal by superimposing it on a received image or a received monitoring image. 2. The portable microwave repeater according to claim 1, further comprising means for superimposing said identification signal on a transmission monitor image and displaying it on the transmission side. 3. A means for detecting a signal indicating a state of a transmitter (hereinafter referred to as transmission information), a means for displaying the detected transmission information by superimposing it on a transmission monitor image and displaying the transmission information of a transmission video signal. A portable microwave relay device comprising: means for inserting and transmitting during a vertical blanking period; and means for displaying received transmission information by superimposing it on a received image or a received monitor image. 4. On the receiving side, means for detecting a signal indicating the state of the receiving device (hereinafter referred to as reception information), means for superimposing and displaying the detected reception information on a reception monitoring image, and the received transmission information. 4. The portable microwave repeater according to claim 3, further comprising: a means for switching and displaying received information.