JP2751466B2 - Intruder surveillance radar device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] An observation signal of a CW or FM radar which observes a Doppler effect or a phase difference of a reflected wave of an intruder of a mobile object with respect to a CW or FM radio wave placed and emitted at an arbitrary position, TV camera shot the intruder by the control signal from the monitoring station
Sending an image to the remote monitoring station by an image transmission wireless device,
Regarding the approach monitoring radar device that monitors the intruder based on the video of the monitoring station display and the alarm sound of the alarm device, the overall power consumption and shape of the CW or FM radar set at the observatory, the TV camera, and the video transmission wireless device Aiming at an intruder surveillance radar device that does not need to be large in size, a CW or FM radar emits a CW or FM radio wave to an intruder and a video transmission radio device sends it to a monitoring station The FM transmission wave generator of the TV video shares one FM modulator, and the receiver of the video transmission wireless device that receives the control signal of the TV camera video from the monitoring station from the monitoring station, and the CW
Alternatively, the FM radar is configured to share one FM receiving unit with a receiving unit that receives a reflected radio wave reflected from an intruder.

[Industrial applications]

According to the present invention, an intruder of a moving object is installed at an arbitrary place, and an intruder of the moving object is observed by a Doppler radar or an FM radar, imaged by a TV camera, sent to a remote monitoring station, and an image and an alarm sound of the intruder of the moving object. The present invention relates to an intruder surveillance radar device for monitoring.

[Conventional technology]

A conventional intruder monitoring radar device is installed at an observing station at an arbitrary location as shown in FIG. 4, and a Doppler radar (CW radar) or a CW radar for observing the Doppler effect of a reflected wave of an intruder of a mobile object with respect to emitted radio waves. An observation signal of the FM radar 10A for observing the phase difference of the reflected wave of the intruder with respect to the emitted FM radio wave,
The TV camera 2 is controlled by a control signal from a remote monitoring station.
TV images taken control to intruder to 0A, feeding in the wireless device 30 _1A, 30 ₂ for video transmission to the monitor station of the remote, the alarm sound of the alarm device 50A and the video display of Deisupurei 40A of observation posts Was sent to monitor the intruder.

[Problems to be solved by the invention]

As described above, the conventional intruder monitoring radar device can be used at an observatory at any location as a CW radar or FM radar
Since the TV camera 20A and the video transmission wireless device 30A were used independently, there was a disadvantage that the power consumption and the size of the entire device at the observatory became large. In particular, when an observatory is set up in a dangerous place and an intruder is monitored and alerted by a remote observing station, the drawback that the power consumption and the shape and dimensions of the entire observatory's equipment increases is an irresistible problem. Was.
SUMMARY OF THE INVENTION It is an object of the present invention to provide an approach monitoring radar apparatus that does not require an increase in the overall power consumption and shape and size of the observation station apparatus.

[Means for solving the problem]

As shown in Fig. 1, the problem is the CW or FM radar at the observatory.
A generator of CW or FM radio waves that 10 emits to the intruder;
Share FM modulation unit 1 and the generator of the FM transmission wave of one video transmission cable device 30 ₁ for transmitting a TV image signal to the monitor station to monitor and control signals of the imaging observatories of the TV camera 20 plants a receiving section of the video transmission wireless unit 30 ₁ for receiving from, as a receiver for CW or FM radar 10 receives the CW or FM radio waves came reflected from intruder to share one single FM receiver 2 This is solved by the configuration of the present invention described above.

FIG. 1 shows a basic configuration of an intruder monitoring radar apparatus according to the present invention.
In principle diagram of Fig, 1, FM transmission CW or FM radar 10 observatories and a generator of the CW or FM radio wave firing, video transmission wireless unit 30 ₁ is sent to the monitor station against intruder This is one FM modulator shared with the wave generator.

2, a receiving section of the video transmission wireless unit 30 ₁ for receiving TV20 control signal of the image of the stations from the monitoring stations, CW or FM
The radar 10 is a single receiver shared with a receiver that receives FM radio waves reflected from an intruder.

[Action]

FM modulation unit 1 of the present invention, CW also FM radar 10 of observatories Mochiiraru same time as generating portion of the CW or FM radio wave emitted against intruder, video transmission wireless device 30 ₁ to monitor station T
It is also used as an FM transmission wave generator for transmitting V-video. Further, FM receiver unit 2, a control signal from the image of the observation stations of the TV camera 20, when used as a receiving portion of the video transmission wireless unit 30 ₁ for receiving from the monitoring stations at the same time, CW or F
The M radar 10 is also used as a receiving unit that receives Doppler-effect radio waves reflected from an intruder or FM radio waves having a phase difference.

Therefore, the intruder surveillance radar device of the present invention
Or FM radar 10 and the video transmission radio unit 30 ₁ and the FM modulation unit 1 F
The different sharing the M reception unit 2, since the simplified overall structure of the CW or FM radar 10 and the video transmission radio unit 30 _1, the overall power consumption of the device of the observatory, finished in geometry is not increased, The problem is solved.

〔Example〕

FIG. 2 is a block diagram showing a configuration of an intruder monitoring radar apparatus according to an embodiment of the present invention, and FIG. 3 is a diagram showing a relationship between a transmission wave and a reflection wave of an FM radar for explaining the operation.
At block diagram of FIG. 2, FM modulation section 1 of the observatory, a CW or FM radar 10, CW or output is fired against intruder through circulator CIR, radio frequency switches RFSW, the antenna ANT ₁ simultaneously with Mochiiraru as generation of FM radio waves, a video transmission radio unit 30 _1, TV camera 20 is FM-modulated to TV video signal through the video switches SW, a circulator CIR, radio frequency switches RFSW, the antenna ANT ₂ It is also used as a generator of the FM transmission wave transmitted to the receiving device REC at the monitoring station. The FM receiver 2 of the observatory includes a radio frequency switch RFSW, a circulator CIR, a mixer MIX, a preamplifier PAMP, a reduction filter LPF, a bandpass filter BPF, a detector DET, a command radio demodulator DEM, a code decoder DCDR, Control circuit CON
Consists T, via the antenna ANT _2, at the same time used to control signals of the TV camera 20 as a receiver of the video transmission wireless device 30 ₁ is received from the command transmitter TR for monitoring plants, CW or reception of FM radar 10 as part, the FM radio waves having a telephone or the retardation underwent Doppler effect came reflected from intruder moving objects, it is also used as a receiving unit that receives via the antenna ANT _1. And in the case of FM radar, as illustration of FIG. 3, (1) f _t solid line FM radar transmission frequency is a certain time of the rose, and the transmission wave of the triangular wave to the subsequent predetermined time is lowered, the dotted line apart only time τ of the phase difference between the reflected waves, (2) f _b moving sound upbeat f _bu and the downbeat f _bd associated with the movement of the intruder is a moving object are output alternately. When this signal is processed, distance and speed information can be obtained.

In the control of this embodiment, first, the FM
The mobile object is observed while switching at a fixed period between the CW radar operation for outputting only the carrier CW and the FM radar operation for modulating with the triangular wave while the modulator 1 is not modulated. When the moving object approaches and a beat sound is observed, the radar information is stored in a memory. Switch RFSW is connected to antenna ANT ₁ and operates in radar mode. Next, when the moving object is observed, and sends a switch RFSW simultaneously switched to the antenna ANT _2, the radar information to the monitor station and modulated by FW modulator 1. After sending radar information for a certain period of time,
The FM modulator 1 is set to non-modulation, enters a receiving mode by a control signal from a monitoring station, and receives a command signal. If the command signal is a command of a TV signal, a TV video signal of the observing station is transmitted to the monitoring station. The command signal also includes a command such as zooming of the TV camera.

As another control example, although not shown, a fixed control circuit is provided in the FM receiving unit 2 of the observatory, and an unmodulated CW radar mode, an FM radar mode for modulating with a triangular wave, a TV video transmission mode, a command radio wave reception mode. Is repeated for a certain period of time. Extraneous device 30 _second monitoring stations receives in synchronization with the signal sent from the stations to burst, or transmits a control signal to the observatory.

As mentioned above, intruder surveillance radar apparatus of the embodiment of the present invention of FIG. 2, the observatories CW or that FM radar 10 and the video transmission radio unit 30 ₁ share the FM modulation unit 1 and the FM receiver 2 By
Having simplified the overall structure of the CW or FM radar 10 and the video transmission radio unit 30 _1, the power consumption of the entire apparatus observatory, there is no problem because the need in geometry does not increase.

〔The invention's effect〕

As described above, according to the present invention, a Doppler radar or an FM radar for observing with an FM radio wave of an intruder of a moving object at an observing station, and receiving a control signal from a remote monitoring station
Since the video transmission wireless device that transmits the TV video captured by the TV camera to the monitoring station does not have a dedicated transmission unit and reception unit, but also serves as a common transmission unit and reception unit, the total equipment consumption at the observatory is consumed. It is possible to reduce power consumption and reduce the size and weight, and it is possible to obtain the effect of improving the intruder surveillance radar device, economy, and mobility.

[Brief description of the drawings]

FIG. 1 is a principle diagram showing a basic configuration of an approach monitoring radar apparatus of the present invention, FIG. 2 is a block diagram showing a configuration of an approach monitoring radar apparatus of an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a diagram showing the relationship between a transmission wave and a reflected wave of an FM radar for explaining the operation of the example. FIG. 4 is a block diagram of a conventional approach monitoring radar apparatus. In the figure, 1 is an FM modulator, 2 is an FM receiver, 10 is a CW or FM radar, 20
Is a TV camera, and 30 ₁ and 30 ₂ are video transmission wireless devices.

Claims (1)

(57) [Claims] 1. An observation signal of a CW or FM radar (10) which observes a topler effect or a phase difference of a reflected wave of an intruder of a mobile object with respect to a CW or FM radio wave installed and emitted at an arbitrary place, and a remote monitoring. TV camera (2
0) sends a TV image of the intruder to the remote monitoring station by the video transmission radio device (30 ₁ ), and monitors the intruder based on the display image of the monitoring station and the alarm sound of the alarm device. who in surveillance radar system, and the generation of the CW or FM radio the CW or FM radar (10) is fired against intruder, video transmission wireless device (30 ₁₎ of TV video to be sent to the monitor station The receiving unit of the video transmission wireless device (30 ₁ ), which shares one FM modulation unit (1) with the FM transmission wave generation unit and receives control signals for imaging by the TV camera (20) at the observatory from the observatory And an FM radar (10) that receives FM radio waves reflected from an intruder and a receiving unit
An intruder surveillance radar device characterized by sharing a receiving unit (2).