JPH088539B2 - Portable microwave repeater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention transmits and displays a signal for identifying a device or a signal indicating a device state between portable microwave repeaters (commonly called FPU devices). It is related to the 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 converted into a modem signal by converting a message signal input by a keyboard or the like and a signal regarding a pre-registered attribute into a modem signal. The signal indicating the state detected on the receiving side, which was not present in the above, was converted to a modem signal and applied to an unused voice channel of the transmitter, and the signal was sent to a microphone like other video and audio signals. Wave transmission is performed, a message signal, a signal related to an attribute, or a signal for knowing the transmission state is obtained from the modem signal after reception and demodulation at the receiver, and the signal is superimposed on the received image to identify or transmit the transmitter. The status is grasped, and an identification signal or a signal indicating the transmission status is sent from the sending side to the receiving side without affecting the transmission of video and audio signals on the main line. Can be transmitted.

[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 means, station name characters were sometimes superimposed on the test video signal (color bar signal) sent by the transmitter for setting the transmission line. It was used for identification to avoid line duplication with the station.

Conventionally, since the attribute of the device on the transmitting side cannot be identified on the receiving side, especially when attempting to produce a program such as multiple relay in which there are multiple transmitting sources, the program producer receives multiple received images. Or, it was inevitable to estimate a specific transmission source from the received voice content and make a judgment, which was an intervening route during program production for the purpose of accuracy and speed.

Further, conventionally, as means for confirming the state of the apparatus, the minimum function such as display of output power, video / audio level, etc. by a level meter on the operation panel surface, transmission power drop, power supply voltage drop, etc. Only had it. 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 transmitting / receiving device capable of grasping

[Means for Solving the Problems] FIG. 1 is a block diagram showing an attribute of a transmitting device and an overall configuration for transmitting a message in the present invention.
Reference numeral 101 is a message setting means composed of a keyboard, 102 is an attribute setting means preset in a ROM, etc., 103
Is an information transmitting means for converting the set message and attribute into a modem signal and transmitting as a voice signal, 104 is a means for multiplexing the set message and attribute as character information in a transmission video signal, and 105 is a transmission video / audio signal Is a modulation circuit that converts the signal into microwaves, and these constitute the transmission side.
On the receiving side, 106 is a demodulation circuit that restores a video / audio signal from microwaves, 107 is an information restoration unit that restores an identification signal, etc. from the demodulated voice signal, and 108 is a restored identification character signal, etc. in the received video signal. It is a means for overlapping characters.

Further, FIG. 5 is a block diagram showing an overall configuration in the case of transmitting / displaying the status of the transmitting apparatus according to the present invention. 20
Reference numeral 1 is an analog-to-digital converter, etc., and information detecting means for detecting information necessary for management and operation of the device, such as voltage and level of each part of the transmission unit, 202 is the detected information as character information in the transmission video signal. Superimposing character multiplexing means, 203 is an information transmitting means for converting information into a voice signal such as a modem signal and transmitting it, 204 is a transmitting section for converting video and voice signals into microwaves, and these constitute the transmitting side. To do. On the receiving side, 205 is a receiving unit that demodulates video and audio signals from microwaves, 206 is an information restoring unit that restores transmission information from the demodulated audio signal, 210 is an information detecting unit that detects information of the receiving unit, 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 attributes and message information set by the message setting means 101 and the attribute setting means 102 are one of the audio signals to be transmitted by the information transmitting means 103, and are transmitted from the transmitting side to the receiving side as microwaves via the modulation circuit 105. Be transmitted to. On the reception side, the identification signal on the transmission side is multiplexed and displayed on the reception video signal through the demodulation circuit 106, the information restoration means 107, and the character multiplexing means 108. As a result, the attributes of the transmitter,
The message can be read as text information, and even if there are multiple transmission sources, the transmission source can be easily specified.

Further, the operation of the present invention is that the information of the transmitter 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 transmitted as one of the audio signals to be transmitted by the information transmitting means 203. Microwaves are transmitted to the receiving side via the 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 The information of the receiving side itself can be displayed by switching 207.

〔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, the attribute signal registered in advance in ROM4 is also 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 signal taken in by the microcomputer 3 are sent to the serial interface circuit 2 and converted into a modem signal by the modem (modulation) 7, and the unused voice of the transmitter as a signal within the voice band. Supply to the channel.

On the receiving side, the demodulated voice signal is restored to a digital signal by the modem (demodulation) 8 and is taken into the microcomputer 10 via the serial interface circuit 9.
The captured identification signal is output as a character signal from the CRT controller circuit 11, is multiplexed with the video signal received and demodulated by the mixer 12, and becomes a received video monitoring 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 voltage and current value level of each part of the transmitting unit 27 is converted into a digital amount by the analog-digital converter 21 and fetched by the microcomputer 22. The captured information is CR
It is output as a character signal via the T controller 23, superposed on a 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 taken in by the microcomputer 22 is converted into a serial signal through the serial interface circuit 25, further modulated by the modem 26 and becomes a frequency-shifted signal within the voice band, and the unused voice of the transmitter is transmitted. The signal is supplied to the channel (usually the third audio channel is used), converted into a microwave together with other video / audio signals by the transmitting unit 27, and radiated by the parabolic antenna.

On the receiving side, the receiving unit 28 demodulates the video / audio signal from the microwave. At the same time, the voice channel containing the demodulated transmission information is further restored to the original serial signal by the modem 29 and taken in by the microcomputer 31 via the serial interface 30. The fetched information on the transmission side is output as character information to the mixer 33 via the CRT controller 32, is superimposed on the received video signal, and becomes a reception monitor video signal. This makes it possible to recognize the transmission information as characters in the reception monitoring image.

In addition, the switch 34 is switched, and the microcomputer 31
To the analog-to-digital converter
It is also possible to superimpose and display the information of the receiving unit itself read in 35 on the received image.

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 at the receiving side, so that the unmanned operation of the transmitting side becomes possible.

Note that the transmission of the signal for identification or the signal indicating the state of the transmitter does not affect the transmission of the video and audio signals of the main line.

[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, 2,9,25,30 …… Serial interface, 3,10,22,31 …… Microcomputer, 4 …… ROM,
5,11,23,32 …… CRT controller, 6,12,24,33 …… Mixer, 7,8,26,29 …… Motemu, 21,35 …… Analog-digital converter, 27 …… Sending unit , 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 at a transmitting side, a means for transmitting the set identification signal by an unused voice channel, and a means for receiving at a receiving side. A portable microwave repeater, comprising: a means for displaying an identification signal superimposed on a received image or a received monitor 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 (hereinafter, referred to as transmission information) indicating a state of a transmitting device, a means for displaying the detected transmission information by superimposing it on a transmission monitor image, and a voice for unused transmission information. A portable microwave relay device comprising means for inputting and transmitting to a channel and means for superimposing and displaying received transmission information on a reception image or a reception monitoring image. 4. On the receiving side, means for detecting a signal indicating the state of the receiving device (hereinafter referred to as reception information), and means for superimposing and displaying the detected reception information on a reception monitoring image,
4. The portable microwave repeater according to claim 3, further comprising means for switching and displaying the received transmission information and reception information.