JPH1062524A - Remote-control led radar apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote-controlled radar apparatus which can be operated by a simple communication means and does not require a man to be permanent ly stationed at a radar station. SOLUTION: A radar station 10 and a monitoring 20 are connected with a telephone cable 24, the radar image obtained by a radar means comprising an overhead wire 12 of the radar station 10 and an instructing apparatus 14 is taken in a controlling part 16 and transmitted to the monitoring station 20 through a radar side modem part 18. In the monitoring station 20, the radar image is displayed on a display screen of the central control part 28. Moreover, a control signal to control the radar station 10 is transmitted from the central control part 28 to the radar station 10 through a control side modem part 26 and the telephone cable 24, so that the radar station 10 is controlled to carry out a prescribed operation. Consequently, it is unnecessary for the radar station 10 to station a man permanently for monitoring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radar device, and more particularly to a remote control type radar device for operating a radar station unattended.

[0002]

2. Description of the Related Art Conventionally, a radar device for a ship for securing voyage safety, a radar device for a fishing ground management for monitoring a fishing ground for protection of a fishing ground, a marine surveillance radar device for monitoring a trend of a marine vessel, and the like. Is used. These radar devices include a radar station having radar means for obtaining a radar image to be monitored, and humans monitor necessary radar images obtained by the radar means to obtain necessary information.

[0003]

However, the conventional fishing ground surveillance radar device and the sea surveillance radar device described above are often provided in a place where it is difficult for a radar station to reach a person, such as the tip of a cape, and the radar image is not displayed. There is a problem that it is difficult for people to reside in order to monitor the situation. For this reason, there has been a demand for monitoring a radar image at a place different from the radar station and convenient for the resident of the radar station so as not to be resident at the radar station.

[0004] In addition, there has been a demand for a radar apparatus for a ship to monitor a radar image in another room on the ship or in a land base.

In each radar apparatus as described above, when a radar image obtained by a radar station is monitored by a monitoring station far from the radar station, the distance is several tens.
Up to 0m, metal cables are used as communication means,
At a distance of several kilometers, optical cables and 50 GHz FM communication were used. It is necessary to install these communication means between each radar station and the monitoring station, and there is a problem that the price of the radar device and the maintenance cost of the communication means increase. In addition, these communication means are only for sending radar images obtained by the radar station to the monitoring station, and it is necessary that a person be resident on the radar station side to perform each operation as in the past. Met.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a remote control type radar device which enables remote control by simple communication means and does not require a person to be stationed at a radar station. To provide.

[0007]

To achieve the above object, the present invention provides a radar unit, a control unit for controlling the radar unit, a radar image obtained by the radar unit, and a control signal. A radar station comprising: a radar-side modem unit; a control-side modem unit for transmitting and receiving a predetermined signal between the radar-side modem unit; and a control-side modem unit.
A monitoring station having a central control unit that receives a radar image from the radar station and issues a control signal to the radar station, and operates the radar station unattended by the control signal from the monitoring station. And

[0008] According to the above configuration, the radar station can be operated unmanned by the control signal from the monitoring station, and the presence of a person in the radar station becomes unnecessary.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a remote-controlled radar apparatus according to the present invention. In FIG. 1, a radar station 10 includes radar means including an antenna 12 and an indicator 14, a control unit 16 for controlling the radar means, and a radar-side modem unit 18 for transmitting and receiving signals to and from a monitoring station 20. ing.

The radar station 10 displays the status of the target around the antenna 12 on the display screen of the indicator 14 and monitors the target 22 such as a ship. The radar image thus obtained is input to the control unit 16, displayed on the screen of the control unit 16, and transmitted to the monitoring station 20 via the radar-side modem unit 18.

The control unit 16 can be realized by, for example, a personal computer. The radar image signal input to the input board of the personal computer passes through a bus inside the personal computer,
As described above, the radar image is displayed on the screen of the personal computer.

[0014] The radar-side modem section 18 modulates the phase of the radar image signal, which is a digital signal, from the control section 16 within the frequency band of the telephone line 24, and transmits the modulated signal to the monitoring station 20.

The radar image signal transmitted from the radar station 10 is received by the control modem 26 of the monitoring station 20, where the received signal is demodulated to reproduce a digital signal. This digital signal is input to the central control unit 28 of the monitoring station 20, and the transmitted radar image is displayed on the screen of the central control unit 28.

The central control unit 28 sends the radar station 1 via the control modem unit 26 and the radar modem unit 18.
It is configured to be able to send a control signal for causing 0 to operate unattended. The contents of the control signal include, for example, power on / off of the radar means of the radar station 10, a transmission request of a radar image, a transmission pulse width in that case, a reception bandwidth of the monitoring station 20, tuning, a maximum screen display range A variety of radar devices and related equipment, such as function control of basic operations of the radar device such as video processing, screen center position movement, screen orientation, supplementation of the object 22 such as a ship, its tracking operation, and chart display related operation control Control is included. The control signals for controlling these are input by the monitor from the central control unit 28 using an input device such as a keyboard or a pointing device. Note that the central control unit 28 can also be realized by a personal computer, like the control unit 16.

As described above, since the control signal of the radar station 10 can be transmitted from the monitoring station 20 side to control the operation of the radar station 10, it is not necessary for a person to be resident in the radar station 10. In this case, the indicator 1 on the radar station 10 side
Since the screen display on the control unit 4 and the control unit 16 is unnecessary, it is not necessary to display the screen except during maintenance and inspection.

When transmitting a radar image signal from the radar station 10 to the monitoring station 20, information is compressed and transmitted using an image compression technique such as JPEG.
The central control unit 28 on the 0 side can expand the information. Thereby, the transmission speed of the radar image can be improved.

In the above configuration, the radar station 10
Since the communication between the communication terminal and the monitoring station 20 is performed by the telephone line 24, the cost of the communication means can be reduced.

FIG. 2 shows an example in which one monitoring station 20 controls a plurality of radar stations 10. In FIG. 2, 1
Three radar stations 10 are connected to one monitoring station 20 via a telephone line 24. 2, the same elements as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be omitted.

Each radar station 10 transmits a radar image signal to the monitoring station 20. Thus, the monitoring station 20 transmits the radar image signals transmitted from each radar station 10 simultaneously or in a predetermined order to the central control unit 28.
Can be displayed on the display screen. On the other hand, monitoring station 2
0, each radar station 1 via the control-side modem unit 26.
0, a control signal is transmitted, and each radar station 10 performs a predetermined operation based on the control signal.

As described above, by using a plurality of radar stations 10, for example, monitoring around a cape that cannot be monitored by one vehicle can be performed. That is, if only one radar station 10 is provided in a normal cape, the radar radio waves do not reach the entire cape, and a shadowed portion occurs. However, if a plurality of radar stations 10 are arranged, the radar radio waves can reach the entire cape. To monitor the area around the cape. Also, even when the range monitored by the radar stations 10 is scattered over a wide range, it is possible to cope with the situation by providing a plurality of radar stations 10 as described above.

In the embodiment shown in FIG. 2, the radar station 1
Even if the number of zeros is increased, the radar station 10 and the monitoring station 20
Is connected by a telephone line 24 to communicate with each other.
The cost of the communication means can be kept low, and the cost of the device can be reduced. Furthermore, since only one monitoring station 20 is required, the cost of the apparatus can be reduced in this respect as well.

Further, in the embodiment shown in FIG. 2, a case is shown in which the number of the control-side modem units 26 is one.
The same number as 0 may be provided. With this, if all the radar stations 10 are called once, when the radar stations 10 are switched thereafter, the calling operation becomes unnecessary. Therefore, the radar stations 10 are switched with high frequency, and the display screen of the central control unit 28 is displayed. Can be displayed.

On the other hand, when the number of the control modem units 26 is one, it is necessary to call the radar station 10 to be used every time the radar station 10 is switched.
Since the number of 6 is small, the apparatus cost can be reduced, which is effective when the switching frequency is low.

The switching of the radar stations 10 is performed by the central control unit 28, but the radar stations 10 are automatically switched by programming in advance, and the radar image from each radar station 10 is changed at predetermined time intervals. Can be displayed on the display screen of the central control unit 28. Also,
If the radar station 10 can be manually interrupt-controlled by input means such as a keyboard during such automatic switching operation, the usability is further improved.

When the radar images from the respective radar stations 10 are displayed on the central control unit 28, the display screen can be divided so that the radar images from all the radar stations 10 can be displayed simultaneously, or one by one. It can also be displayed. In this case, as described above, the display target can be selected by moving the screen center position from the central control unit 28, and the size of the display can be controlled.

When the radar images from the radar stations 10 are simultaneously displayed, the images on the display screen of the central control unit 28 are reduced and arranged for each of the radar images from the radar stations 10, so that each radar station 10 is displayed. It is also possible to view ten monitoring ranges at once. In this case, the aforementioned radar station 1
When linked with automatic switching of 0, the latest radar images from each radar station 10 obtained in order can be displayed. In addition, the position of the screen can be set according to the installation position of each radar station 10, and the information can be easily viewed by superimposing and displaying the map of the coast line or the island inputted in advance.

If the time during which the line between the radar station 10 and the monitoring station 20 is cut off becomes longer than a predetermined time,
It is also preferable to program the radar station 10 to automatically turn off the power.

In the above-described remote-controlled radar apparatus according to the present invention, communication between the radar station 10 and the monitoring station 20 is performed by the telephone line 24. If a dedicated line such as ISDN is used, the transmission speed is improved, and moving images can be transmitted. Thereby, the monitoring capability can be further improved.

[0030]

As described above, according to the present invention,
Communication between the radar station and the monitoring station can be performed by a simple telephone line, and the radar station can be remotely controlled from the monitoring station, so that it is not necessary for a person to be resident in the radar station. Also, a plurality of radar stations can be centrally controlled by one monitoring station.

As described above, the number of persons for monitoring can be reduced, and labor costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a remote-controlled radar device according to the present invention.

FIG. 2 is a block diagram showing an embodiment having a plurality of radar stations of the remote control radar apparatus according to the present invention.

[Explanation of symbols]

10 radar station, 12 aerial, 14 indicator, 16
Control unit, 18 radar side modem unit, 20 monitoring station, 22
Object, 24 telephone line, 26 modem part on control side, 2
8 Central control unit.

Claims (1)

[Claims] 1. A radar station comprising: a radar unit, a control unit for controlling the radar unit, and a radar-side modem unit for transmitting a radar image obtained by the radar unit and receiving a control signal. A control-side modem unit for transmitting / receiving a predetermined signal to / from a modem unit, and a central unit for receiving a radar image from the radar station via the control-side modem unit and issuing the control signal to the radar station. A remote control radar apparatus comprising: a monitoring station having a control unit; and operating the radar station unattended by the control signal from the monitoring station.