JPH06188760A - Receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a satellite broadcast receiving camera and a peripheral monitoring camera at a low cost at the same time, and to obtain a receiving device that protects the peripheral monitoring camera from rainwater. [Structure] A peripheral monitoring camera 31 is provided on the rear surface of a satellite broadcast receiving antenna section, controlled by a horizontal rotation drive section 15 and a vertical rotation drive section 24, and the received video and audio signals are RF-converted by an RF converter 27. The signal is converted into a signal, transmitted by the RF transmitting antenna 28, and received by the RF receiving antenna.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving device mounted on a moving vehicle and a peripheral monitoring camera, that is, a receiving device for constantly receiving satellite broadcast radio waves while receiving satellites and a peripheral device when the moving vehicle retreats. The present invention relates to a peripheral monitoring camera for monitoring.

[0002]

2. Description of the Related Art FIG. 9 is a perspective view showing the appearance of a moving vehicle equipped with a conventional receiving device, and FIG. 10 is a block diagram showing the flow of video and audio of a system in the conventional receiving device. In the figure, reference numeral 1 denotes a moving vehicle, on which a rear monitoring camera 34, a VHF receiving antenna 3 and a satellite broadcasting receiving antenna 35 are attached. A signal cable from each antenna device is connected to a satellite broadcast tuner and a VHF tuner, and then a television monitor in the moving vehicle 1 via a rear monitoring camera, a satellite broadcast, and a VHF television broadcast mode switch. 4 and 5 are connected.

Next, the operation will be described with reference to the drawings. The satellite broadcasting reception antenna 35 receives the satellite broadcasting radio waves, and the satellite broadcasting tuner installed in the moving vehicle 1 converts them into audio and video signals. Also, VHF TV broadcasting is V
The VHF television broadcast radio wave is received by the HF receiving antenna, and is converted into audio and video signals by the VHF tuner installed in the moving vehicle 1 as described above. The signal of the rear monitoring camera 34 is converted into a video signal by the main body. Next, the television monitor 4, 5 installed in the moving vehicle 1 is used to selectively watch the satellite broadcast, the VHF television broadcast, and the switch for switching the modes of the rear monitoring camera 34.

[0004]

Since the conventional receiving apparatus is configured as described above, three signal cables of a satellite broadcasting receiving antenna, a VHF television broadcasting receiving antenna, and a rear monitoring camera are moved respectively. It was necessary to wire inside the vehicle.

Further, since the rear monitoring camera is fixed to the moving vehicle, it cannot be arbitrarily moved. Further, since the rear monitoring camera body is directly fixed to the moving vehicle, it is difficult to protect it from rainwater.

Since the satellite receiving antenna is rotated at an arbitrary angle in the dome-shaped cover in order to avoid the influence of the wind force during traveling, the signal received from the satellite broadcast is a high frequency and thus is transmitted to the inside of the vehicle. Therefore, an expensive rotary type signal transmission device had to be used.

The present invention has been made to solve the above problems, and three inputs (satellite broadcasting, VHF television broadcasting, rear monitoring camera) are provided by one system of signal cable.
Can be switched.

It is possible to transmit the received signal of the satellite broadcast into the moving vehicle by an inexpensive method without using an expensive rotary type signal transmitting device.

It is another object of the present invention to obtain a receiving device capable of rotating the periphery monitoring camera at an arbitrary angle and protecting the periphery monitoring camera from rainwater and the like.

[0010]

A receiving apparatus according to the present invention comprises a satellite broadcasting antenna and a peripheral monitoring camera which are integrated with each other and covered by a dome made of a radio wave transmitting material.

In addition, the necessary portion of the dome is provided with a transparent portion using a transparent material of a radio wave transmitting material.

Further, a switch for switching between the use modes of the satellite broadcast receiving antenna and the peripheral monitoring camera is provided to selectively switch the signal and send it to the RF converter, and the RF signal is transmitted by the RF transmitting antenna to the VHF television broadcast radio wave (1 ~
3 ch) and the VHF receiving antenna is used for receiving.

[0013]

In the receiving device according to the present invention, the satellite broadcast receiving antenna and the peripheral monitoring camera are integrally configured, and the peripheral monitoring camera is directed in an arbitrary direction by using the satellite broadcast receiving antenna tracking drive device. be able to. In addition, by integrating the satellite broadcasting reception antenna and the peripheral monitoring camera, the dome made of radio wave transparent material can be shared, and the necessary parts of the dome are made of transparent material of radio wave transparent material. It is possible to take a picture from the inside of the dome with a peripheral monitoring camera by configuring the transparent part using.

Further, after converting the respective signals of the satellite broadcasting receiving antenna device and the peripheral monitoring camera into an audio signal and a video signal (AV signal), the satellite broadcasting or the peripheral monitoring camera is arbitrarily selected by using the mode changeover switch. Is selected and converted into an RF signal by the RF converter, then the signal is transmitted by the RF transmitting antenna and received by the RF receiving antenna.

[0015]

EXAMPLES Example 1. Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which a receiving device according to an embodiment of the present invention is attached to a moving vehicle. FIG. 2 is a perspective view showing the appearance of the receiving apparatus of the present invention. FIG. 3 is a top view showing a cross section of a part of the receiving apparatus of the present invention. FIG. 4 is a side view showing a part of the receiving apparatus of the present invention in cross section. FIG. 5 is a partial cross-sectional view showing details of the horizontal pedestal portion of the receiving apparatus of the present invention. FIG. 6 is a diagram for explaining the details of the antenna unit for receiving the satellite broadcast radio wave of the receiving apparatus of the present invention. FIG. 7 is a block diagram showing the system of the receiving apparatus of the present invention. In each drawing, reference numeral 1 denotes a moving vehicle, on which a receiving device 2 is installed, and an RF receiving antenna 3 for receiving radio waves of VHF television broadcasting is also installed. In addition, a television monitor 4 and, if necessary, a small monitor 5 are installed inside the moving vehicle 1. Reference numeral 6 denotes a dome for protecting the receiving device 2, which is made of a radio wave transmitting material. In addition, a transparent portion 7 made of a transparent material of a radio wave transmitting material is provided at a required portion of the dome 6, and is made of an acrylic resin, a polycarbonate resin or the like as a whole.
In addition, a cable 8 for supplying driving power and control signals
Are attached so as to be connected to the vehicle body. Reference numeral 9 is a horizontal mount for supporting the receiving device for horizontal rotation, and a mounting bracket for installation on the roof of the moving vehicle 1 and a connection structure with the dome are integrally mounted. Detailed description is omitted.

Next, referring mainly to FIG. 5, a substantially disk-shaped horizontal mount 9 supports a horizontal rotary bearing 10 at the center thereof, and a thrust bearing part 11, that is, a thrust bearing part 11 on the upper surface of the intermediate part between the horizontal rotary bearing 10 and the end of the horizontal mount 9. , The thrust load is supported as, for example, an arcuate array of balls, so that the horizontal rotary mount 12
It is designed to support the rotation with high precision. In addition, a slip ring 13 is provided at the center of the rotating body, and the horizontal mount 9 is mounted on the horizontal rotary mount 1 from the moving vehicle 1 side.
2 to supply power and control signals.
A horizontal rotary gear 14 having external gears is provided on the side surface of the central portion of the horizontal pedestal 9 and is attached to the output rotary shaft of the horizontal rotation drive unit 15 attached to the horizontal rotary pedestal 12. The horizontal rotary mount 12 is always meshed with the horizontal rotary pinion 16 and is integrally formed by the rotation of the horizontal rotary pinion 16.
0, that is, it rotates with respect to the center. The above-mentioned horizontal rotation drive unit 15 is integrally formed with a servo motor and a speed reducer, and rotation is controlled by a horizontal rotation control circuit described later. In each figure, reference numeral 17 denotes a horizontal reference position detection unit, which is composed of, for example, a combination of a permanent magnet 17a attached to the horizontal mount 9 and a hall element 17b attached to the horizontal rotary mount 12, and when both of them match during horizontal rotation. A pulse signal is output to detect the reference direction such as the longitudinal direction of the moving vehicle 1. Reference numeral 19 denotes a horizontal rotation detecting unit, which is formed by combining a light emitting element and a light receiving element, for example, and extends to the horizontal rotating gear 14 to obtain a pulse signal depending on the intensity of the received light according to the unevenness of the gear. There is. In this way, the horizontal rotation angle is detected based on the rotation directions of the two detection units 17 and 19 and the horizontal rotation drive unit 15, and the details will be described later. Further, as shown in FIG. 3 and FIG.
Two vertical rotation supporting portions 20 are provided on both sides of the vertical rotation supporting portion 20 in the drawing, and an antenna portion 21, which will be described in detail later, can be vertically rotated about a vertical rotation supporting shaft 22. A sector gear 23 is provided around the vertical rotation support shaft 22. A vertical rotation drive unit 24 is attached on the horizontal rotation base 12 so that the vertical rotation detection unit integrally rotates with the output shaft of the servomotor and the speed reducer. The vertically rotating pinion 25 attached to the gear always meshes with the sector gear 23 described above. Therefore, the antenna unit 21 is vertically rotated by the rotation of the vertical rotation drive unit 24, and the rotation angle thereof is determined by a vertical rotation detection unit, for example, a rotary enconder configured integrally with the vertical rotation drive unit. It is designed to detect. The signal processing circuit 26, the RF converter 27, and the
The RF transmission antenna 28 is attached and its operation will be described later.

Next, the structure of the antenna section 21 will be described. As shown in FIG. 6, a plurality of antenna units 21 (in the figure, 4
2) which is a rectangular and planar element antenna 29, and each of which is shown as a combination of coil elements as shown in the figure is plane-symmetric as shown in the figure with respect to the main directional center axis of the antenna section 21. Is divided into four,
The respective element antennas 29 are RU (upper right) -antenna 29a, LU (upper left) -antenna 29b, RD (lower right).
-Antenna 29c and LD (lower left) -Antenna 29d. Further, the element antennas 29 are arranged such that the central axes of the respective element antennas 29 are line-symmetrical with respect to the main directional central axis of the antenna portion 21 as shown in FIG. Further, each of the element antennas 29 is provided with a down converter 30 independently provided, and the output of the down converter 30 is connected to each of the signal processing circuits 26. The details will be described later.

Next, the peripheral monitoring camera 31 is provided on the rear surface of the antenna portion 21 provided on the vertical pedestal 20 supported by the vertical rotary support portion 20 on the horizontal rotary pedestal 12, and two peripheral monitoring camera support portions 32 are shown in the figure. It is fixed by a peripheral monitoring camera mounting screw and is rotated horizontally and vertically like the antenna section 21. In addition, the initial setting of the fixed position of the peripheral monitoring camera 31 is made possible by loosening the peripheral monitoring camera mounting screw 31 so that the vertical rotation direction becomes free, and the peripheral monitoring camera mounting screw is set to an arbitrary horizontal rotation position. By tightening, the peripheral monitoring camera 31 is fixed.

Next, the operation will be described. When the receiving device 2 is in the operating state, the horizontal rotary drive unit 15 provided on the horizontal rotary base 12 operates to operate the horizontal rotary drive unit 1.
The horizontal rotation pinion 16 provided coaxially with the No. 5 rotates. The horizontal rotary pinion 16 meshes with the horizontal rotary gear 14 provided over the entire circumference of the central portion of the horizontal pedestal 9, so that the horizontal rotary pedestal 12 rotates horizontally when the horizontal rotary drive unit 15 rotates. At this time, the permanent magnets 17a provided on the horizontal rotary mount 12 are connected to the hall element 17a provided on the horizontal mount 9.
After passing over b, a pulse signal is generated from the horizontal reference position detector 17 and transmitted to a signal processor described later. As a result, for example, a combination of a light emitting element and a light receiving element is provided so as to branch to the horizontal rotary gear 14 to output a pulse signal depending on the intensity of the received light according to the unevenness of the gear. The horizontal rotation detection unit 19 that detects the horizontal rotation direction by operating the above-described equation operates to start detection of the horizontal rotation direction and the horizontal rotation angle.

As described above, first, in order to check how many times the horizontal rotary base 12 is located from the horizontal reference position, the horizontal rotation base 12 passes before the horizontal reference position 17 at least once. That is, the Hall element 17a provided on the horizontal rotary mount passes over the permanent magnet 17b provided on the horizontal mount to generate a pulse signal. From the position where the pulse signal is generated, the horizontal rotation detector 19 detects the amount of movement of the gear with respect to the horizontal rotation gear 14 and calculates the horizontal rotation angle. Further, every time when the pulse signal is generated by passing in front of the horizontal rotation reference position 17, the data of the horizontal rotation detection unit 19 is cleared and is newly calculated from the pulse signal position. Next, either the antenna use mode or the camera use mode is selected by the mode switch. Here, the antenna use mode will be described first.

Radio waves from the satellite pass through the dome 6 made of a radio wave transmitting material and are received by the antenna portion 21 provided on the horizontal rotary mount 12. The antenna section 21 is
As shown in FIG. 6, a plurality of strip-shaped element antennas 29 are divided into four parts in the figure so as to be plane-symmetric with respect to the main directivity central axis of the antenna section 21 as shown, and each of the element antennas 29 is divided. Since the directivity center axis of is arranged with a declination in such a relationship that it is line-symmetrical as shown in the figure,
When the antenna unit 21 receives satellite broadcasting in the best orientation, 4
When the element antennas 29 divided into two have the same reception level, and the antenna section 21 is not in the best direction, the reception level of the element antenna 29 close to the best direction increases and the reception levels of the other element antennas 29 decrease. Become Further, the element antenna 29 is an array of a required number of elements, for example, helical coils arranged at a required interval, and each one individually functions as a small antenna.

When the mode changeover switch is set to the antenna use mode, the signal activates the mode changeover relay via the slip ring 13 to set the signal processing circuit 26 in the antenna use mode side. Next, similarly to the above, one horizontal rotation is performed and a pulse signal is received from the horizontal reference position detection unit 17. Next, a synchronization signal is generated so that the channel set by a channel operation switch separately provided on the vehicle side or a preset channel is generated, and the synchronization signal is transmitted to the channel tuning circuit via the local oscillator and the element Channel tuning circuits (four in the figure) provided corresponding to the number of antennas 29 are all the same channel. Next, frequency conversion is performed from the four element antennas 29 to the first intermediate frequency by the down converter 30 provided independently of each other. For example, in BS broadcasting, the strength of radio waves is much weaker than that in terrestrial broadcasting, and in addition, 12 GH
The z-band has a high frequency, and the radio waves collected by the down converter 30 are frequency-converted to the 1 GHz band, which is about 1/10, and the signal level thereof is amplified. Next, although not shown, the signal converted to the first intermediate frequency is passed through a low-pass filter, amplified by RF-Amp, and converted to a 403 MHz band by a second frequency converter (not shown). Then, the same channel can be made through the channel tuning circuit described above, and the same synchronization signal and the same local oscillator can be used to make the phases match. Further, here, an analog AGC signal indicating the reception level received by the antenna unit 21 is generated by each.
As described above, the antenna section 21 of the present invention receives each independently, and the level comparison circuit for comparing the reception levels compares the element antennas 29 with each other to find the direction of the satellite. For example, when the upper right element antenna (RU-antenna) 29a is higher than the other element antennas 29b, 29c, and 29d, data is sent from the level comparison circuit to the antenna direction control circuit and the antenna direction control circuit causes the antenna unit 21 to move. Calculate the direction to turn,
The data is divided into data sent to the horizontal rotation control circuit and data sent to the vertical rotation control circuit by the control changeover circuit via the mode changeover switch set to the antenna use mode, and each data is divided into the horizontal rotation control circuit. Then, it is sent to the vertical rotation control circuit to operate the horizontal rotation drive unit 15 and the vertical rotation drive unit 24 to operate the horizontal rotation mount 12 and the antenna unit 21. Although the horizontal rotation has been described above, the vertical rotation is provided on the axis of the vertical rotation drive unit 24 in which the motor and the speed reducer are integrally configured based on the data sent from the vertical rotation control circuit. As the vertical rotation pinion 25 rotates, the sector gear 23 provided on the back surface of the vertical rotation support portion 20 provided on the horizontal rotation support 12 and supported on the vertical rotation support portion 20 rotates to perform vertical rotation. Here, since the element antenna 29a on the upper right has a higher reception level than the other element antennas 29b, 29c, 29d, the element antenna 29a is horizontally rotated to the right and vertically rotated upward so that each element of the level comparison circuit is rotated. The level difference of the antenna 29 is eliminated, and the antenna unit 21 can be oriented in an appropriate direction. In this way, the level comparison is always performed, and the antenna direction control circuit monitors so that the respective reception levels are always equal.

Further, the respective signals having the same phase by the channel tuning circuit are combined by the mixer. That is, when the signals having the same phase are combined, the respective signals are added and the signal level rises. On the contrary, if the phases are deviated, the signal levels do not rise and they cancel each other out, resulting in a drop in the signal level. In addition, the signal synthesized by the mixer is IF-Amp
Although not shown in the figure, the signal is converted into an AV signal by using a conversion device for converting the signal into an AV signal, which is not shown, and the AV signal is stabilized and amplified by AV-Amp. Next, a signal is sent to the RF converter 27 via the mode switching relay that has been switched to the antenna use mode by the mode switching switch, and is converted into an RF signal. The RF signal is a frequency band between 1ch and 3ch of VHF television broadcasting, and mainly uses 2ch in the Kanto direction and 1ch in Osaka in the Kansai direction. Next, the signal converted into the RF signal is sent to the RF transmitting antenna 28 and is transmitted as a radio wave for VHF television broadcasting of 1 or 2ch. An RF signal transmitted as a radio wave for VHF TV broadcasting is received by an RF receiving antenna 3 installed in the moving vehicle 1, and is transmitted to a tuner for receiving VHF TV broadcasting, and a TV monitor 4 is set in accordance with the channel used as the RF signal. Also, it is sent to the small monitor 5 and viewed as a television signal.

Next, when the mode changeover switch is changed over to the use mode of the peripheral monitoring camera 31, the mode changeover relay is also changed over. As a result, the last data sent from the vertical rotation detection unit integrally formed with the horizontal rotation detection unit 17 and the vertical rotation drive unit 24 is stored in the antenna position via the antenna direction control circuit and the antenna direction estimation circuit. It is sent to the circuit and holds the data. Next, the camera position data preset by the camera position setting circuit is sent to the mode switching relay via the camera direction control circuit and sent to the horizontal rotation control circuit and the vertical rotation control circuit by the control circuit switching unit. Similarly, the horizontal rotation drive unit 15 and the vertical rotation drive unit 24 are operated to direct the peripheral monitoring camera 31 to the set position. The initial setting of the peripheral monitoring camera 31 is performed after loosening the peripheral monitoring camera mounting screw 33 of the peripheral monitoring camera support portion 32 provided on the rear surface of the antenna unit 21 of the vertical mount to perform the initial setting of the vertical rotation position. The peripheral monitoring camera 31 is fixed by tightening the peripheral monitoring camera mounting screw 33. In addition to the preset camera position, it can be arbitrarily set with a manual operation switch.
In the manual operation, data obtained by operating the lever of the manual operation switch is sent to the camera direction control circuit via the slip ring 13, and the horizontal rotation drive unit 15 and the vertical rotation drive unit 24 are operated in the same manner as above to set. The set data can also be sent to and held by the camera position setting circuit.

Next, the periphery monitoring camera 31 photographs through the transparent portion 7 of the dome 6 made of a radio wave transmitting material.
The AV signal of the peripheral monitoring camera 31 is amplified by AV-Amp to the same level as the antenna output signal to be a camera output signal. The RF converter 2 via the mode changeover relay that is interlocked with the mode changeover switch that is switched to the camera use mode by the mode changeover switch that switches between the antenna use mode and the camera use mode.
7 and the RF transmission antenna 28 in the same manner as above.

Further, when the radio wave from the satellite is interrupted in the antenna use mode, the angular velocity in the moving direction of the moving vehicle is detected by an angular velocity detector (not shown) such as a plurality of piezoelectric gyros to detect the amount of movement of the vehicle body. The calculation unit calculates the amount of movement of the moving vehicle and sends the data to the antenna direction estimation circuit, and the direction of the antenna unit 21 is controlled by the antenna direction control circuit in the same manner as the horizontal rotation drive unit 15 and the vertical rotation drive unit
4 is controlled to control the direction of the antenna so that the satellite is always tracked even when the radio wave from the satellite is interrupted. The mode switch is switched from the antenna use mode to the camera use mode, and the antenna use mode is resumed. When the mode selector switch is switched to, the satellite radio wave can be received immediately. Here, the receiving device 1 has been described as receiving radio waves from a satellite,
It can also be used for two-way communication. Further, although the peripheral monitoring camera 31 is described as visible light, it may be a sensor capable of supplementing infrared rays or the like.

Example 2. Another embodiment of the present invention will be described. Although the RF receiving antenna 3 for receiving VHF television broadcasting is provided separately from the receiving device 1 in the above-described embodiment, the RF receiving antenna is configured integrally with the receiving device as shown in FIG. It may be.

FIG. 8 is a perspective view showing the appearance of a receiving apparatus according to another embodiment of the present invention. In the figure, reference numeral 34 is an RF receiving antenna which is configured integrally with the receiving apparatus 1 and is arranged at a required angle. Others are the same as those shown in the above-mentioned embodiment.

Next, the operation will be described. A converted from the RF transmitting antenna 28 into an RF signal as in the first embodiment
The V signal is transmitted and received by an RF receiving antenna that is configured integrally with the receiving device 1.
Since the RF receiving antenna 34 is integrally configured in this manner, the transmission power of the RF transmitting antenna can be reduced and the radio waves from the RF transmitting antenna can be received in high quality. Further, the radio waves of VHF television broadcasting can be received as in the first embodiment.

[0030]

As described above, according to the present invention, since the satellite broadcasting receiving antenna device and the peripheral monitoring camera are integrally configured, the peripheral monitoring camera can be arbitrarily operated by using the driving device of the satellite broadcasting antenna device. You can point the perimeter surveillance camera at an angle. Also, by covering with a dome made of a radio wave permeable material, it is possible to simultaneously protect the peripheral monitoring camera and the satellite broadcasting antenna device from rainwater and the like.

Further, by providing a transparent part made of a transparent material of a radio wave transmitting material in a necessary part of the dome, it is possible to take an image of the peripheral monitoring camera from the inside of the dome.

Also, after converting the signal of the satellite broadcasting antenna device and the peripheral monitoring camera signal into a video signal respectively, the signal is arbitrarily selected by the switching device, and the signal is transmitted by the RF transmission antenna through the RF converter. Send and R
Since the radio wave is received by the F receiving antenna and the image is received by the monitor TV, the high frequency is not transmitted by the rotating part, and the purpose can be achieved only by transmitting the power supply and the control signal using an inexpensive slip ring. Can be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a receiving device according to an embodiment of the present invention is attached to a moving vehicle.

FIG. 2 is a perspective view showing the external appearance of the receiving device of the present invention.

FIG. 3 is a top view showing a cross section of a part of the receiving device of the present invention.

FIG. 4 is a side view showing a part of the receiving device of the present invention in section.

FIG. 5 is a partial cross-sectional view showing details of a horizontal pedestal portion of the receiving device of the present invention.

FIG. 6 is a diagram for explaining details of an antenna unit for receiving a satellite broadcast radio wave of the receiving apparatus of the present invention.

FIG. 7 is a block diagram showing a system of a receiving device of the present invention.

FIG. 8 is a perspective view showing an external appearance of a receiving device according to another embodiment of the present invention.

FIG. 9 is a perspective view showing an appearance of a moving vehicle to which a conventional receiving device is attached.

FIG. 10 is a block diagram showing a flow of video and audio of a system in a conventional receiving device.

[Explanation of symbols]

 1 moving vehicle 2 receiving device 3 RF receiving antenna 4 TV monitor 6 dome made of radio wave permeable material 7 transparent part provided at necessary parts of dome 9 horizontal mount 10 horizontal rotary bearing 12 horizontal rotary mount 14 horizontal rotary gear 15 Horizontal rotation drive unit 16 Horizontal rotation pinion 17 Horizontal reference detection unit 19 Horizontal rotation detection unit 21 Antenna unit 24 Vertical rotation drive unit 26 Signal control unit 27 RF transformer 28 RF transmission antenna 31 Perimeter monitoring camera

Claims (4)

[Claims] 1. An antenna and a peripheral monitoring camera, which are installed on the roof of a moving vehicle and whose rotation is controlled in horizontal and vertical directions, are arranged to track in the direction of arrival of radio waves having strong directivity. A receiving device characterized by being attached as one unit. 2. A switch for switching between a usage mode of the antenna and a usage mode of the peripheral monitoring camera is provided in the passenger compartment of the moving vehicle, and horizontal and vertical rotations are performed at the time of switching from the usage mode of the antenna to the usage mode of the peripheral monitoring camera. In addition to providing a means for storing the moving position, the monitoring direction of the peripheral monitoring camera can be set in advance in the horizontal and vertical rotation positions with respect to the reference direction of the moving vehicle in the use mode of the peripheral monitoring camera. The receiving device according to claim 1, wherein the receiving device is provided. 3. An RF transmitting antenna for transmitting an RF signal to an RF converter via an antenna or a switch for selecting and switching a video signal output from a peripheral monitoring camera and transmitting the RF signal on a horizontal rotary mount of a receiver. The receiving device according to claim 1, wherein the receiving device is provided. 4. The receiving device is covered with a dome made of a radio wave transmitting material, and a transparent portion is provided at a necessary place of the radio wave transmitting dome. Receiver.