JP5332043B2 - Wireless transmission system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively display information about transmission using three dimensions in a radio transmission system including a moving transmitter, a receiver which receives a radio wave transmitted from the transmitter, and a display part. <P>SOLUTION: The display part performs display (for example, display as shown in Fig.4) using a three-dimensional map at a viewpoint for viewing the receiver from the back of the transmitter when the receiver (receiving point 401) is viewed from the transmitter (transmitting point 402). In addition, the display part has: a function for performing display using a map at a viewpoint for viewing a range including positions of two points of the transmitter and the receiver from the sky; and a function for performing the display using the map at a viewpoint for horizontally viewing the range including the positions of two points of the transmitter and the receiver. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a wireless transmission system applicable to, for example, a remote control monitoring system using wireless transmission, and more particularly to a technique for displaying information related to transmission.

As an example of a remote control monitoring system using radio transmission, a micro reception base station system including fixed radio transmission between base stations using FPU (Field Pick-up Unit) as shown in FIG. Is mentioned.
In such a micro reception base station system, the transmission side of a wireless transmission device that transmits video, audio, and data (broadcast material) at a high frequency of about 333 MHz or more called FPU is mounted on a relay vehicle or helicopter. It is moved and received by a rotating receiving antenna device, and wirelessly transmitted to a fixed station such as a broadcasting station at a high frequency of about 3 GHz or more.

JP 2007-134915 A

However, in the remote control monitoring system as described above, further development has been required for a technique for displaying information on the transmission path.
The present invention has been made in view of such conventional circumstances, and an object thereof is to provide a wireless transmission system capable of effectively displaying information related to transmission using three dimensions.

In order to achieve the above object, in the present invention, a wireless transmission system including a moving transmission device (transmission point), a reception device (reception point) that receives a radio wave transmitted from the transmission device, and a display unit. The following configuration was adopted.
That is, the display unit views the receiving device from the transmitting device side (for example, the transmitting viewpoint shown in FIG. 4), or views the transmitting device from the receiving device side (for example, shown in FIG. 3). Display using a three-dimensional map at the receiving viewpoint 308).
Therefore, using the 3D map, it is possible to show the user when the receiving device is viewed from the transmitting device side and when the transmitting device is viewed from the receiving device side, and information on transmission using 3D Can be effectively displayed. Thereby, a user's usability can be improved.
Here, various viewpoints may be used as the viewpoint of viewing the receiving apparatus from the transmitting apparatus side. For example, when the receiving apparatus is viewed from the transmitting apparatus, the viewpoint of viewing the receiving apparatus from behind the transmitting apparatus is used. be able to.
In addition, various viewpoints may be used as the viewpoint of viewing the transmitting apparatus from the receiving apparatus side. For example, when the transmitting apparatus is viewed from the receiving apparatus, the viewpoint of viewing the transmitting apparatus from behind the receiving apparatus is used. Can do.

Various transmitting apparatuses may be used. For example, an FPU transmitter that is mounted on a moving body and moves according to the movement of the moving body may be used.
Various receiving apparatuses may be used. For example, an FPU receiver provided in a base station can be used.
Further, the display unit may be provided in any part of the system (for example, an apparatus). As one configuration example, the system includes a control apparatus (for example, an operation terminal) that controls the receiving apparatus. A display unit is provided in the control device, and as another configuration example, a display unit may be provided in a device such as an FPU transmitter or an FPU receiver, or display units may be provided in a plurality of places. Further, an operation unit by the user may be provided at an arbitrary place in the system, for example, may be provided at the same place as the display unit.

Various types of 3D maps may be used.
In the display using a three-dimensional map, various information may be used as the displayed information. For example, the position of the transmission device, the position of the reception device, and the transmission between the transmission device and the reception device. Information on obstacles on the road can be used.
In addition, various information may be used as information regarding a failure in wireless transmission. For example, information such as a position where the failure exists, a characteristic of the failure, and a degree of the failure can be used.

The radio transmission system according to the present invention has the following configuration as an exemplary configuration.
That is, the display unit is a map (for example, a two-dimensional map) with a viewpoint (for example, an aerial (upper) viewpoint illustrated in FIG. 5) viewing the range including the positions of the transmission device and the reception device from the sky. ) And a map (for example, a two-dimensional map) with a viewpoint (for example, the horizontal viewpoint shown in FIG. 6) of horizontally viewing a range including the positions of the two points of the transmission device and the reception device. ) Has one or both of the functions of performing display using the.
Therefore, information regarding transmission can be displayed from various viewpoints, and user convenience can be improved.

  Here, in the display using the map, various information may be used as the displayed information. For example, the position of the transmission device, the position of the reception device, and the transmission path between the transmission device and the reception device. Information relating to a failure in the transmission path between the transmission device and the reception device can be used.

The radio transmission system according to the present invention has the following configuration as an exemplary configuration.
That is, there are a plurality of receiving devices as the receiving device.
The display unit includes a display using a map (for example, a two-dimensional map or a three-dimensional map) including information on a transmission path with each of the two or more receiving devices for the transmitting device (for example, FIG. 8). Display).
Therefore, the user can grasp information on a transmission path with each of two or more receiving devices for a certain transmitting device, and user convenience can be improved.

  Here, various numbers are used as the number of two or more receiving devices in the case of performing display using a map including information on transmission paths with each of two or more receiving devices for one transmitting device. For example, all existing receiving apparatuses may be targeted, or a receiving apparatus having a short (small) distance to the transmitting apparatus based on a condition such as a preset distance threshold. A configuration in which only the target is used may be used.

In addition, as for two or more receiving devices in the case of performing display using a map including information of transmission paths with each of two or more receiving devices for one transmitting device, for example, the transmitting device is currently communicating ( A receiving device (candidate receiving device) that does not transmit a signal is included, and if there is a receiving device with which the transmitting device is currently communicating, it may be included.
For example, when there are a plurality of transmission apparatuses, a configuration in which a transmission apparatus to be displayed can be selected (designated) by a user or the like may be used.

The radio transmission system according to the present invention has the following configuration as an exemplary configuration.
In other words, the display unit displays the transmission path determined to be free from other transmissions when performing display using the map including transmission path information with each of the two or more receiving apparatuses. A display (for example, a display as shown in FIG. 8) is performed in such a manner that it can be identified from the road.
Therefore, when displaying information on a transmission line with each of two or more reception apparatuses for a certain transmission apparatus, the user can easily grasp the transmission line (the reception apparatus) determined as having no failure. User convenience can be improved.

Here, various methods may be used as a method for determining the presence or absence of a failure in the transmission path. For example, a method for determining that there is no failure when there is no obstacle such as a mountain or a building in the transmission path. Or a method of determining that there is no obstacle when the transmission quality calculated in consideration of the influence of obstacles such as mountains and buildings in the transmission path is better than a predetermined threshold it can.
Various methods may be used as a method for identifying a transmission line in the display. For example, a method of changing the thickness, color, type, or the like of a line (transmission line) representing the transmission line can be used. .

In the present invention, a wireless transmission system including a moving transmission device, a reception device that receives a radio wave transmitted from the transmission device, and a display unit has the following configuration.
That is, the display unit has a function of performing a display using a two-dimensional map (for example, a display as shown in FIG. 10), and a transmission path and a viewpoint when the display using the two-dimensional map is specified. It has a function of performing display using a corresponding three-dimensional map (for example, display as shown in FIG. 11) on the same screen.
Therefore, when a transmission path and a viewpoint are specified in a display using a two-dimensional map, a display using a three-dimensional map corresponding to the specified transmission path and viewpoint is performed. Information can be displayed effectively. Thereby, a user's usability can be improved.

Here, various types of two-dimensional maps may be used.
In addition, as a method for specifying a transmission line, for example, a method for specifying a transmission line selected (designated) by a user, or only information related to one transmission line is displayed in a display using a two-dimensional map. In this case, it is possible to use a method for specifying the transmission path when it is present, a method for specifying a predetermined transmission path set in advance, or the like.
As a method for specifying the viewpoint, for example, a method for specifying the viewpoint selected (designated) by the user, a method for specifying a predetermined viewpoint set in advance, or the like can be used.

  In addition, as a mode of performing display using a three-dimensional map on the same screen with respect to display using a two-dimensional map, for example, a frame different from a display frame (window) using a two-dimensional map is used. An aspect of performing display using a 3D map, or erasing the content of the display in a display frame using a 2D map, and performing display using a 3D map in the frame (that is, Overwrite) mode can be used.

(Description of various configuration examples)
Various configuration examples shown below may be applied to the present invention.
As an example of the configuration, the display unit has a three-dimensional map including the positions of two points of the transmission device and the reception device, a line (for example, a square line) connecting these two points, and a wireless between these two points. Displays information about transmission failures.
Therefore, for example, the display of the transmission path and the fault area can be made clearer, and the user can determine whether or not transmission is possible more quickly and effectively.
Here, in the display unit, for example, a line connecting two points on the three-dimensional map, and information on a failure in wireless transmission (and information on other display targets on the three-dimensional map). It is displayed superimposed.

As one configuration example, the display unit displays information on the Fresnel zone relating to wireless transmission between the two points on a three-dimensional map.
Therefore, the status of wireless transmission can be visually presented to the user more clearly.
Here, as information on the Fresnel zone, for example, information on the first Fresnel zone can be used.

As one configuration example, when the line connecting the two points changes (for example, when redrawing), the display unit displays all or a predetermined part of the information displayed on the three-dimensional map as an afterimage. Keep doing.
Therefore, the afterimage can make it easier for the user to grasp the status of wireless transmission in various arrangements.
Here, various information may be used as the afterimage, and for example, a line connecting the two points, information on a failure, or the like can be used.

As one configuration example, the display unit has a function of switching between display using a two-dimensional map and display using a three-dimensional map. In addition, the wireless transmission system includes switching instruction means for giving an instruction to switch display using a two-dimensional map and display using a three-dimensional map to the display unit.
Accordingly, the display using the two-dimensional map and the display using the three-dimensional map can be switched by a switching instruction operation by the user, and the convenience for the user can be further improved.
Here, as a mode of switching between the display using the 2D map and the display using the 3D map, for example, a mode of switching from the display using the 2D map to the display using the 3D map, A mode of switching from the used display to a display using a two-dimensional map or a mode of switching between these two directions can be used.

As one configuration example, the display unit has a function of performing display using a two-dimensional map and display using a three-dimensional map on one screen.
Therefore, the user can confirm the display using the two-dimensional map and the display using the three-dimensional map on one screen, and can further improve the convenience for the user.

As one configuration example, the display unit displays information on a plurality of receiving device candidates for one transmitting device (for example, information on the position of each candidate) using a two-dimensional map or a three-dimensional map.
As an example of the configuration, the display unit has a function of changing the attributes (for example, thickness, color, type, etc.) of the line connecting the two points according to the state of wireless transmission between the two points.
As one configuration example, the display unit displays information on propagation loss, diffraction loss, and the like in wireless transmission.
As an example of the configuration, the display unit displays information using a graphic as information regarding a failure.

  As described above, according to the present invention, it is possible to effectively display information related to transmission using three dimensions.

It is a figure which shows the structural example of the micro receiving base station system which concerns on one Example of this invention. It is a figure which shows an example of the display of the transmission line using a three-dimensional electronic map. It is a figure for demonstrating the viewpoint on the three-dimensional map which concerns on a transmission line display. It is a figure which shows an example of the display in the transmission viewpoint using a three-dimensional map. It is a figure which shows an example of the display by the sky viewpoint (aerial viewpoint) using a three-dimensional map. It is a figure which shows an example of the display by the horizontal viewpoint using a three-dimensional map. It is a figure which shows an example of the operation screen of remote control monitoring. It is a figure which shows an example of the display of the map part at the time of pressing down the all base profile display button by the user. It is a figure which shows an example of the display of the operation screen at the time of pressing down a candidate search display button by the user. It is a figure which shows an example of the display of the operation screen in the control monitoring system of wireless transmission using a two-dimensional map. It is a figure which shows an example of the display of the operation screen at the time of pressing down a three-dimensional display button.

Embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 shows a configuration example of a micro reception base station system according to an embodiment of the present invention which is an example of a remote control monitoring system using wireless transmission.
The micro reception base station system of this example is provided with a transmission point A11, a base station 12, a head office 13, and a transmission point B14.

The transmission point A11 includes a transmission unit 11-1 and an antenna 11-2.
The base station 12 includes a rotation receiving antenna device 12-1, a receiving unit 12-2, a transmitting unit 12-3, a controlled terminal station 12-4, a modem unit 12-5, and a fixed antenna 12-6.
The head office 13 includes a fixed antenna 13-1, a receiving unit 13-2, a rotating receiving antenna device 13-3, a receiving unit 13-4, a decoding unit 13-5, an information generating unit 13-6, an information editing unit 13-7, A modem unit 13-8, a control terminal station 13-9, and an operation terminal 13-10 are provided.
The transmission point B14 includes a transmission unit 14-1 and an antenna 14-2.

  Here, for example, the system of this example is applied to a broadcasting system, the transmission point A11 and the transmission point B14 are FPU transmitters mounted on a moving body such as a relay car and a helicopter, and the base station 12 serving as a reception point is It is equipped with an FPU receiver (for example, a rotating receiving antenna device 12-1), is installed on the top of a mountain or on a building, and operates unattended. In the head office 13, the transmission point A11, the transmission point B14, and the base station 12 are operated. Remote control or monitoring (remote control monitoring) is performed by a user operation or automatically.

  Usually, the communication line between the head office 13 and the base station 12 is fixed and in a good communication state, while the state of wireless communication between the transmission point A11 and the base station 12 is the topography between them. It fluctuates by etc. For this reason, in the head office 13, information on the state of wireless communication between the transmission point A11 and the base station 12 is displayed on a screen of a terminal (for example, the operation terminal 13-10) together with a map, and an operation from the user is accepted. Moreover, the positional information etc. of the transmission point A11 are acquired, and rotation etc. are controlled about the antenna (for example, rotation receiving antenna apparatus 12-1) of the base station 12 based on these.

An example of the operation in the micro reception base station system of this example is shown.
In this example, a case where broadcasting material is transmitted from the transmission point A11 and the transmission point B14 to the head office 13 will be described.
The material from the transmission point A11 at a long distance from the head office 13 is wirelessly transmitted to the head office 13 through the base station 12. First, the transmission unit 11-1 at the transmission point A11 converts the material into a microwave signal that can be wirelessly transmitted, and transmits a radio wave from the antenna 11-2. Here, the transmission unit 11-1 encodes an SDI (Serial Digital Interface) signal into a TS (Transport Stream) signal, which is a frame format of a fixed-length packet format used for transmission in the FPU, and outputs the intermediate frequency signal. After being modulated, the frequency is converted to the microwave band and transmitted to the antenna 11-2.

  The radio wave transmitted from the transmission point A11 is received by the rotation receiving antenna device 12-1 in the base station 12 and sent to the receiving unit 12-2. Here, the receiving unit 12-2 has, for example, a function of converting a microwave band signal into an intermediate frequency signal, a function of demodulating it into a TS signal, and a function of decoding this into an SDI signal. However, the receiving unit 12-2 in the base station 12 only needs to have a function for conversion to a TS signal with no minimum signal degradation. The TS signal is sent to the transmission unit 12-3 and transmitted by radio waves from the fixed antenna 12-6. Similar to the reception unit 12-2, the transmission unit 12-3 in the base station 12 only needs to have a function of converting a minimum TS signal into a microwave band.

The radio wave transmitted from the base station 12 is received by the fixed antenna 13-1 of the head office 13, is decoded into an SDI signal by the receiving unit 13-2 and the decoding unit 13-5, and is sent to the main line.
Further, the material from the transmission point B14 at a short distance from the head office 13 is transmitted from the antenna 14-2 through the transmission section 14-1, and directly received by the rotary reception antenna device 13-3 of the head office 13, and the reception section. 13-4, decoded by the decoding unit 13-5 and sent to the main line.

  In wireless transmission using the micro-reception base station system of this example, it is important how efficiently the base station 12 can receive radio waves from the transmission point A11. That is, the direction of the antenna of the rotation receiving antenna device 12-1 in the base station 12 must be changed depending on the position of the transmission point A11. For this reason, in the micro reception base station system of this example, the rotation receiving antenna device 12-1 has a rotating mount that can be rotated by remote control from the head office 13 in the antenna.

The control monitoring method is as follows.
In the head office 13, the control packet transmitted from the operation terminal 13-10 to the network is received by the control terminal station 13-9 and converted into a serial signal. Here, it is also possible to connect a plurality of operation terminals and a plurality of control terminals to the network, and to transmit / receive by specifying a transmission partner and a reception partner by each device ID. The serial signal is further modulated, for example, into an analog signal by the modulation / demodulation unit 13-8 and transmitted to the base station 12. The analog signal is received by the modulation / demodulation unit 12-5 in the base station 12, demodulated into a serial signal, and then transmitted to the controlled terminal station 12-4. The controlled terminal station 12-4 decodes the received control signal and controls the rotation receiving antenna apparatus 12-1.

  Monitoring information such as an angle in the rotation receiving antenna device 12-1 of the base station 12 is sent as a monitoring signal to the controlled terminal station 12-4. The controlled terminal station 12-4 transmits the information as a serial signal to the modem unit 12-5, and the modem unit 12-5 modulates the information into, for example, an analog signal and transmits the analog signal to the head office 13. The modem unit 13-8 in the head office 13 demodulates the received signal into a serial signal and transmits it to the control terminal station 13-9. The control terminal station 13-9 decodes the received serial signal and transmits a monitoring packet to the network. The operation terminal 13-10 receives this monitoring packet and displays it on the terminal as information.

  As described above, it is possible to monitor and monitor the rotation receiving antenna apparatus 12-1 in the base station 12. Furthermore, in the micro reception base station system of this example, the reception / transmission level, transmission / reception channel (frequency band), modulation method, transmission output, and decoding in the reception unit 12-2 and transmission unit 12-3 installed in the base station 12 For example, the selection of the contact point of the signal switch, the signal input / output selection of the signal multiplexing / demultiplexing device, and the like are performed in the same manner as in the control monitoring of the rotation receiving antenna device 12-1, the control terminal 13-10-control terminal. Station 13-9-Controlled terminal station 12-4-Control and monitoring can be performed by a series of signal transmissions of a control device (device to be controlled).

  Further, when transmitting directly to the head office 13 for material transmission from the transmission point B14, using a signal transmission path of operation terminal 13-10-control terminal station 13-9-control device (device to be controlled), It is possible to control and monitor devices such as the rotation receiving antenna device 13-3 and the receiving unit 13-4 existing in the head office 13.

  Further, in the micro reception base station system of this example, as providing more detailed information for adjusting the direction of the reception antennas 12-1 and 13-3, the reception frequency and modulation in the reception units 12-2 and 13-4 are provided. TMCC (Transmission and Multiplexing Configuration Control) information including transmission parameters such as the method, reception level, margin (Margin Degree), BER (Bit Error Rate), MER (Modulation Error Ratio), delay profile data, etc. For example, the information is superimposed on the TS signal and transmitted to the inside of the head office 13, and the data is separated from the signals from the reception units 13-2 and 13-4 by the information generation unit 13-6. Edit by -7, upper operating terminal 13-10 (e.g., the screen) to be displayed on, there is a method.

(Background technology and problems of this embodiment)
The background art and problems described below are for easy understanding of the description of the present embodiment and are not necessarily publicly known.
FIG. 2 shows an example of transmission path display using a three-dimensional electronic map.
The display screen shown in FIG. 2 displays a three-dimensional electronic map, which includes a reception point 201, a transmission point 202, a transmission line (from the reception point 201, an antenna angle display line) 203, a fault A display (indicating a failure area) 204, angle reference lines 205 and 206, and an orientation index 207 are shown. By such a display method, transmission path information and altitude information that have been displayed separately until now are integrated into one screen. Thereby, for example, it is possible for the user to easily determine the outlook considering the topographic elements.
In this example, for example, each position is detected from GPS (Global Positioning System) information and latitude / longitude information of the map and displayed on the map.

  First, the map in this example is three-dimensional. For example, altitude information is added on the map by a conventional three-dimensional technique, and therefore a vertical change can be confirmed on the map. When displaying the transmission path line (transmission path line) 203 connecting the transmission point 202 and the reception point 201 on the map, the information that considers topographic elements is integrated by characterizing the area that becomes the obstacle in transmission. It becomes possible to provide. For example, in FIG. 2, the range of the failure is watched. According to this, compared with the conventional profile display obtained by cutting out one transmission line, it is possible to examine the current transmission line in which peripheral terrain information is grasped. In other words, the user pays attention to both altitude and surrounding terrain elements with only one screen of information on propagation loss related to transmission gain in the current transmission path, loss loss due to trouble, and transmission movement / relocation cost for trouble avoidance. Can be compared and judged.

  Here, the propagation loss of the high frequency of about 333 MHz or more can be calculated from the transmission output, each antenna power gain (can be derived from the transmission frequency and the antenna diameter), and the distance. It is possible to express using the line thickness, color, etc., or numerical values. Further, in FIG. 2, the determination of whether transmission is possible by radio wave diffraction at the trouble point is supported at the same time. The diffraction loss when the line of sight on the transmission line is blocked can be approximated using, for example, diffraction parameters derived from the reception point altitude, transmission point altitude, obstacle point altitude, and transmission radio wave wavelength.

  In these examples, the digital modulation and transmission at a high frequency of about 333 MHz or higher have been used in recent years. In this example, the attenuation after passing through the fault region is displayed by the thickness of the transmission line 203. ing. In other words, diffraction loss corresponding to high-frequency transmission of about 333 MHz or higher of digital modulation can be confirmed at the same time as the transmission line. Can be considered relatively.

Here, in this example, the display content of FIG. 2 is displayed on the screen of the operation terminal 13-10 of the head office 13, and the operation terminal 13-10 receives an operation from the user. The transmission point 202 indicates the position of the transmission point A11, and the reception point 201 indicates the position of the base station 12.
Regarding the rotary receiving antenna device 12-1 at the reception point 201, the angle reference line 205 indicates a horizontal (H) 0 ° position, and the angle reference line 206 indicates a vertical (height V) 0 ° position. In this example, H0 ° indicates north, and changes from north to east, south, and west as it becomes positive.
The fault display 204 indicates that the wireless transmission path is shielded by a mountain or the like, and the faulted portion is painted in a predetermined color.

The transmission line 203 (for example, line thickness, color, type, etc.) is based on one or more of, for example, propagation loss of transmission radio waves in free space and the influence (for example, diffraction) of an obstacle (indication 204 of the obstacle). It is decided. For the transmission line 203, for example, the line may be erased where no radio wave passes.
The orientation index 207 can be rotated by an operation, and the displayed map is rotated accordingly.

In addition, about the various information shown by FIG. 2, only arbitrary arbitrary parts may be displayed, or the other information which is not shown in this example may be further displayed.
As a specific example, a configuration may be used in which a first Fresnel zone of transmission, which is a radio wave propagation main area, is displayed with respect to the transmission path. The radio wave propagation main area is determined based on one or more of, for example, propagation loss of a transmission radio wave in free space and the influence (for example, diffraction) of a failure (failure display 204).

  In the display method as shown in FIG. 2, since the area surrounding information is added on the map, the user is not only a failure situation on one transmission path, but also a total transmission path considering the loss of radio waves and the avoidance cost. Establishing study is possible.

  However, since such a three-dimensional map has a map form that holds a great deal of information, the map operation of the user is very complicated compared to the operation of the conventional two-dimensional map. For example, in a two-dimensional map, the operation is simply a horizontal movement and a map scale operation, but in a three-dimensional map, in addition to this, a viewpoint movement with the height direction added is added. Thereby, in a three-dimensional map, even if only one point is displayed, an operation of viewing from which direction and at which angle is required. In other words, the operation method of a 3D map is much more complicated than the amount of information on the map, so the user needs extra time to operate the map so that it can be displayed from the desired viewpoint. End up. Considering the complexity of such map operations, this problem requires some kind of support mechanism.

  Therefore, in the present embodiment, in view of the problems as described above, for example, while supporting the map operation on the three-dimensional electronic map, the viewpoint that satisfies the required information display related to the transmission path confirmation work is searched and displayed. Thus, an object is to provide a more effective display function in the three-dimensional transmission line display.

With reference to FIG. 3, the viewpoint on the three-dimensional map concerning the transmission line display of this example is demonstrated first.
In FIG. 3, the transmission path portions correspond to those shown in FIG. 2, and show a reception point 301, a transmission point 302, a transmission line 303, and a failure display 304, respectively.
Here, the viewpoint candidate for displaying this transmission path is a representative point (referred to as a transmission viewpoint) 305 on the extension of this transmission path, or a representative point above the midpoint of this transmission path (referred to as an “upper viewpoint”). 306, or a representative point (referred to as a horizontal viewpoint) 307 on the vertical bisector of this transmission line on a two-dimensional plane.

In addition to these viewpoints, for example, as a representative point on the extension of the transmission path, a viewpoint (referred to as a reception viewpoint) 308 viewed from the extension of the reception point, or the transmission path on the two-dimensional plane A representative point on the vertical bisector may include a point 309 (which can be said to be a horizontal viewpoint viewed from the opposite side) 309 that is symmetrical to the point of the horizontal viewpoint 307 with respect to the transmission line.
As a supplementary point in FIG. 3, a midpoint 310 of the transmission path is shown.

Display examples of the transmission path shown in FIG. 2 when viewed from these viewpoints are shown in FIGS. 4, 5, and 6.
FIG. 4 shows an example of display at a transmission viewpoint using a three-dimensional map.
FIG. 5 shows an example of a display at an aerial viewpoint (aerial viewpoint) using a three-dimensional map.
FIG. 6 shows an example of display from a horizontal viewpoint using a three-dimensional map.

In the display example of the transmission path at the transmission viewpoint shown in FIG. 4, the part representing the transmission path corresponds to that shown in FIG. 2, and shows the reception point 401, transmission point 402, and fault display 404, respectively. . Note that the transmission line cannot be seen from the transmission viewpoint.
In the display example of the transmission path from the sky viewpoint shown in FIG. 5, the part representing the transmission path corresponds to that shown in FIG. 2, and the reception point 501, the transmission point 502, the transmission path 503, and the fault display 504, respectively. Is shown.
In the display example of the transmission path from the horizontal viewpoint shown in FIG. 6, the part representing the transmission path corresponds to that shown in FIG. 2, and the reception point 601, the transmission point 602, the transmission path 603, and the fault display 604, respectively. Is shown.

Each of these viewpoints is displayed from the sender's perspective (display from the transmission viewpoint), displayed on a two-dimensional map (display from the sky viewpoint), and displayed in a topographic profile (display from the horizontal viewpoint). It corresponds to. Since each of these three viewpoints is intended to determine the object from a direction of another dimension, for example, it is more effective to list three candidates as candidates without being limited to one.
For example, in the display of the transmission line shown in FIG. 4, it is considered that communication between the user who performs remote control of the base station 12 and the site is performed more smoothly. Further, the display shown in FIG. 5 and FIG. 6 is a familiar display for a user who has used the same display from before, for example, so that it is considered that the state of the transmission path is easy to understand.

FIG. 7 shows an example of an operation screen for remote control monitoring that functionally configures the display method as described above.
In this example, this operation screen is displayed on the screen of the operation terminal 13-10 of the head office 13, and when the user operates the operation unit of the operation terminal 13-10, the operation content is accepted.

  In the display of the operation screen shown in FIG. 7, for example, a reception level meter 701, a reception level value 702, a rotation antenna current angle 703, rotation antenna monitoring information 704, reception function monitoring information 705 are provided as device control monitoring functions similar to the conventional one. A transmission point information 706 and a rotating antenna control button 707 are shown, and functions relating to the three-dimensional transmission path display include a three-dimensional map 708, an aerial viewpoint button 709, a horizontal viewpoint button 710, a transmission viewpoint button 711, an entire base. A profile display button 712, a candidate search display button 713, and a profile setting button 714 are shown.

  Note that a three-dimensional map 708 in FIG. 7 shows a form in which a graphic characterizing a failure point and a character string as a commentary supplement (in this example, a character string “diffraction loss −10 dB”) are displayed. Without being limited to those illustrated, various methods such as color, line segment thickness, line type, figure supplement, and annotation supplement may be used for displaying the fault.

  In the operation terminal 13-10 of this example, for example, when the user presses each viewpoint button 709 to 711 on the operation screen using an operation method such as a mouse, information on the displayed transmission path (in this example, For example, the display content in the frame of the three-dimensional map 708 is switched to the display of the designated viewpoint, and it is considered that the map operation time of the user is remarkably shortened.

Next, the profile related buttons 712 to 714 will be described.
The all base profile display button 712 obtains and displays a transmission path for all base stations (reception points) registered (for example, registered in advance or during operation) with respect to the designated transmission point. An instruction is accepted.
FIG. 8 shows an example of display of a map portion (in this example, display content within the frame of the three-dimensional map 708, for example) when the user presses the all base profile display button 712.
In the example of the transmission path display shown in FIG. 8, the first base station (first reception point) 802, the second base station (second reception point) 803, Base station (third reception point) 804, transmission line 805 between the transmission point 801 and the first base station 802, transmission line 806 between the transmission point 801 and the second base station 803, transmission point 801 and the third A transmission line 807 with the base station 804 is displayed. Also, a failure 808 on the transmission line 805 and a failure 809 on the transmission line 807 are displayed.

In the display example shown in FIG. 8, the viewpoint for displaying all the base stations is an aerial viewpoint that can cover the horizontal plane.
In such a display, for example, the first base station 802 and the third base station 804 can immediately understand that there are faults 808 and 809 on the transmission path. In such a display, for example, when there is a failure, the transmission line is displayed in red, while for the transmission line that is visible, the transmission line is displayed in green. it can. The line thickness, color, line type, and the like can be changed according to the presence or absence of an obstacle.
In this example, the case where information related to the three base stations 802 to 804 is displayed for one transmission point 801 is shown. However, for example, there are cases where there is no base station to be displayed or there is one. There may be.

The candidate search display button 713 accepts an instruction to automatically search for a transmission path that can be transmitted (in this example, a transmission path having no fault) for the selected transmission point.
FIG. 9 shows an example of the operation screen displayed when the candidate search display button 713 (901 in FIG. 9) is pressed by the user. The example of the transmission path candidate display shown in FIG. 9 is an example in the case of the base station arrangement shown in FIG.
The display example shown in FIG. 9 is different from the display example shown in FIG. 7 in that the display contents in the frame of the three-dimensional map 708 are switched, and corresponding buttons (candidate search display button 901, transmission viewpoint button) are switched. 902) is the same except that the color is changed.

In the display example shown in FIG. 9, when the candidate search display button 901 is pressed, the second base station that was out of the three base stations shown in FIG. The information on the transmission path is displayed at the transmission viewpoint by the transmission viewpoint button 902, for example, which has been selected in advance by the user. In particular, in the case of transmission path candidate display, it is considered effective to display the expected electric field 903 calculated from the transmission path distance based on the free space loss, and is displayed in this example.
At this time, information on the transmission side is required, but in this example, it can be solved by setting the transmission side by pressing the profile setting button 904 (714 in FIG. 7). .

  Here, as the setting contents (information on the transmission side to be acquired and set) when the user presses the profile setting button 904, for example, antenna diameter, transmission frequency information, transmission output information, and the like can be considered. As for the reception setting (reception side information setting), for example, monitoring information from a base station currently performing control monitoring or pre-base station information can be used. Based on these pieces of information, a total comparison and examination using a three-dimensional map for setting a transmission path can be performed for all the registered base stations for one transmission point.

In the display as shown in FIG. 8, for example, the user operating the operation terminal 13-10 can select any one base from a plurality of displayed base station (reception points) 802 to 804 candidates. When a station is selected and designated, the operation terminal 13-10 that has accepted the designation displays various information using a three-dimensional map such as shown in FIG. 2 for the base station designated as the transmission point 801. It is also possible to adopt a configuration in which
In addition, the operation terminal 13-10 can be configured to be able to arbitrarily switch between a flat display as shown in FIG. 8 and a stereoscopic display as shown in FIG.

  The planar display of the peripheral information of the transmission point as shown in FIG. 8 and the switching between the planar display and the stereoscopic display can improve the usability of the user. For example, it is possible to search for an alternative reception point (in this example, a base station) according to the transmission status. Further, for example, the operation terminal 13-10 detects the transmission status of a receiving point (other receiving point) other than the currently displayed receiving point (for example, one receiving point), and becomes one alternative candidate The above reception points can be displayed.

Furthermore, an application example is shown.
The transmission line display method of this example can be expected to be more applicable, for example, in combination with a display using a conventional two-dimensional map.
FIG. 10 shows an example of an operation screen display in a wireless transmission control and monitoring system using a two-dimensional map, which has a three-dimensional map combined function.
In the display of the operation screen shown in FIG. 10, for example, reception level meter 1001 (corresponding to 701 in FIG. 7), reception level value 1002 (corresponding to 702 in FIG. 7), rotation, Antenna current angle 1003 (corresponding to 703 in FIG. 7), rotating antenna monitoring information 1004 (corresponding to 704 in FIG. 7), reception function monitoring information 1005 (corresponding to 705 in FIG. 7), transmission point information 1006 (corresponding to 706 in FIG. 7), a rotating antenna control button 1007 (corresponding to 707 in FIG. 7), and a two-dimensional electronic map display 1008 are shown. A 3D display button 1009 used as an interface to a 3D map and an acquisition button (information acquisition button) 1010 from 3D are shown. There.

FIG. 11 shows an example of the operation screen displayed when the user presses the three-dimensional display button 1009 in the display shown in FIG.
In the display example of the operation screen shown in FIG. 11, in addition to the display contents shown in FIG. 10, a viewpoint selection pull-down 1101 and a 3D map window 1102 are displayed. In addition, the color of the corresponding button (three-dimensional display button 1009) is changed.

  The user can select a viewpoint such as an aerial viewpoint, a horizontal (planar) viewpoint, and a transmission viewpoint by using the viewpoint selection pull-down 1101 when the 3D map window 1102 performs display using the 3D map. In this way, when the transmission path is synchronized with the two-dimensional map and displayed by the three-dimensional map, it is possible to provide information in a state that is easy for the user to view by selecting the viewpoint. At this time, the information communicated from the two-dimensional map is, for example, the transmission point, the latitude and longitude of the reception point, and the altitude and viewpoint information.

  Specifically, in response to the user's operation pressing the 3D display button 1009 and selecting one of the viewpoints from the viewpoint selection pull-down 1101, the operation terminal 13-10 selects a predetermined program (3D map). Sending point information (eg, latitude, longitude, altitude), receiving point information (eg, latitude, longitude, altitude) and viewpoint information (viewpoint information) to the program) Information about the road is drawn. Normally, in order to draw a transmission path on a map, at least the latitude, longitude, and altitude information of the transmission point and the reception point is required, and other information is acquired and considered. May be.

Here, for example, the user can set the transmission path (for example, the position of the transmission and reception points) using the two-dimensional map, and then check the periphery by looking at the three-dimensional map synchronized therewith. .
In addition, for example, in a display using a two-dimensional map, in response to the user selecting (designating) a transmission path and a viewpoint, the display using a three-dimensional map corresponding to the selected transmission path and viewpoint is performed. If the transmission path is specified, such as when there is only one transmission path in the display using the two-dimensional map, it is specified according to the user selecting (specifying) the viewpoint. A mode in which display using a three-dimensional map corresponding to the viewpoint selected for the transmission path to be performed may be used.

Further, in the display examples of the operation screens shown in FIGS. 10 and 11, an acquisition button 1103 from three dimensions for expanding the information on the two-dimensional map based on the information on the transmission path indicated by the three-dimensional map. (Corresponding to 1010 in FIG. 10).
For example, the user moves the transmission path (position of transmission and reception points) on the 3D map by the operation, and then presses the information acquisition button 1103 from the 3D map to transmit the transmission path information on the 3D map. It is also possible to draw information synchronized with the two-dimensional map on the two-dimensional map. In the operation terminal 13-10, when the information acquisition button 1103 from the 3D map is pressed, the information in the 3D map window 1102 is reflected in the 2D electronic map display 1008.

Here, the three-dimensional display button 1009 and the information acquisition button 1010 from the three-dimensional map (1103 in FIG. 11) may be in the two-dimensional electronic map display 1008 as another configuration example, or three-dimensional An information acquisition button 1010 from a map (1103 in FIG. 11) may be in the three-dimensional map window 1102. As an example, a 3D display button 1009 for calling a 3D map on a 2D map is provided, and an information acquisition button from the 3D map for calling or reflecting the 2D map on the 3D map is provided. A display method of providing 1010 (1103 in FIG. 11) may be used.
Further, for example, a configuration may be adopted in which the display of the three-dimensional stereoscopic map and the display of the two-dimensional planar map can be switched to each other by a user operation.
The two-dimensional and three-dimensional displays on the same screen as shown with reference to FIGS. 10 and 11 can improve the usability of the user.

In the display example of this example, information using a 3D map is displayed separately as a window. For example, a 3D map is used for the same screen (one screen) for a set of the same transmission point and reception point. As an example of another configuration, the display frame of the two-dimensional electronic map (two-dimensional electronic map display 1008) is replaced with the three-dimensional electronic map display as it is. May be.
Further, as one configuration example, the size relationship between the two-dimensional map screen and the three-dimensional map screen that are simultaneously displayed on the same screen may be switched by a user operation or the like. Can be improved.

  As described above, in this example, a transmission device (in this example, transmission point A11), a reception device that receives radio waves from the transmission device (in this example, base station 12), and an operating device that controls the reception device ( In this example, in a wireless transmission system (in this example, a micro receiving base station system) including an operation terminal 13-10) of the head office 13, the operation device includes a three-dimensional electronic map, and the electronic map A display of a transmission path passing through the above two points or an accompanying radio wave propagation area (for example, Fresnel zone), an indication of a failure in the transmission path or the accompanying radio wave propagation area, and a first representative on the extension of the transmission path A second representative point above the midpoint of the transmission line, or a third representative point on a perpendicular bisector of the transmission line on a two-dimensional plane, and a first representative point or a first representative point The transmission from 2 representative points or 3 representative points It performs a process of switching to the three-dimensional display of the viewpoint overlooking the.

In the operation device of this example, in the transmission line display as described above, a process for obtaining a transmission line (backup transmission line) that connects the transmission point in the transmission line and another reception point registered in the operation apparatus; Then, processing for displaying the preliminary transmission path on the three-dimensional electronic map is performed.
Further, in the operation device of this example, in the transmission line display as described above, a process for selecting and displaying only the spare transmission line having no particular failure is performed.
In the operation device of this example, in the transmission line display as described above, a two-dimensional electronic map is provided, and a transmission line designated on the two-dimensional electronic map is used as a transmission line display method on the three-dimensional map. Process to display.

  In this way, in this example, for example, a map of a viewpoint (transmission viewpoint) from which the reception point is seen from behind the transmission point by displaying a three-dimensional map and pressing various displayed buttons on the FPU remote controller, for example. Processing to display a map of a viewpoint that captures the range including the transmission point and reception point from above (upper viewpoint), and a viewpoint that captures the range including the transmission point and reception point from the side (horizontal (Viewpoint) map display processing, processing for displaying and displaying transmission paths (for example, backup transmission paths) with all base stations for the specified transmission point, and within the calculated backup transmission paths For example, a process of displaying only a transmission path without an obstacle in an identifiable state and a process of displaying a corresponding three-dimensional map on the same screen when a transmission path on the two-dimensional map is selected and a viewpoint is selected are performed.

  Therefore, in this example, for example, in the transmission path setting in the remote control monitoring system using wireless transmission, the function of switching the current transmission path to a representative viewpoint for the transmission path display on the three-dimensional electronic map is provided. By doing so, the operability of the three-dimensional map can be improved, and the user's transmission path design can be supported more functionally than, for example, the conventional method. This makes it possible to easily and functionally shorten the user's operation while utilizing the abundant amount of information of the 3D map, and to improve the information provision and functionality as a system as a whole. it can.

  In this example, the configuration example in which various types of information display and operation are performed on the operation terminal 13-10 of the head office 13 is shown. However, as another configuration example, one or both of the display and the operation is a transmission point (for example, , FPU) and the like performed by other devices may be used.

Here, the configuration of the system and apparatus according to the present invention is not necessarily limited to the configuration described above, and various configurations may be used. The present invention can also be provided as, for example, a method or method for executing the processing according to the present invention, a program for realizing such a method or method, or a recording medium for recording the program. It is also possible to provide various systems and devices.
The application field of the present invention is not necessarily limited to the above-described fields, and the present invention can be applied to various fields.
In addition, as various processes performed in the system and apparatus according to the present invention, for example, the processor executes a control program stored in a ROM (Read Only Memory) in hardware resources including a processor and a memory. A controlled configuration may be used, and for example, each functional unit for executing the processing may be configured as an independent hardware circuit.
The present invention can also be understood as a computer-readable recording medium such as a floppy (registered trademark) disk or a CD (Compact Disc) -ROM storing the control program, and the program (itself). The processing according to the present invention can be performed by inputting the program from the recording medium to the computer and causing the processor to execute the program.

11 .. Transmission point A, 12 .. Base station, 13 .. Head office, 14 .. Transmission point B, 11-1, 12-3 .. Transmitter, 11-2 .. Antenna, 12-1, 13- 3 ··· Rotating receiving antenna device, 12-2, 13-2, 13-4 · · Receiver, 12-4 · · Controlled terminal station, 12-5 · · Modulator and demodulator, 12-6, 13-1 · · Fixed antenna, 13-5 · · Decoding unit, 13-6 · · Information generation unit, 13-7 · · Information editing unit, 13-8 · · Modulation and demodulation unit, 13-9 · · Control terminal, 13-10 ..Operation terminals,
201, 301, 401, 501, 601 ... Reception point, 202, 302, 402, 502, 602, 801 ... Transmission point, 203, 303, 805-807 ... Transmission line, 204, 304, 404, 504, 604, 808, 809 ... Failure indication 205, 206 Angle reference line 207 Orientation index 305 Transmission point 306 Sky perspective 307 Horizontal view 308 Reception point 309 ..Horizontal viewpoint viewed from the opposite side, 310 ..Middle point of transmission path 503, 603 ..Transmission path 701, 1001 ..Reception level meter, 702, 1002 ..Reception level value, 703, 1003. Rotating antenna current angle, 704, 1004 .. Rotating antenna monitoring information, 705, 1005 ..Receiving function monitoring information, 706, 1006 .. Trust point information, 707, 1007 ... Rotating antenna control button, 708 ... Three-dimensional map, 709 ... Sky viewpoint button, 710 ... Horizontal viewpoint button, 711,902 ... Transmission viewpoint button, 712 ... All base profiles Display button, 713, 901 ... Candidate search display button, 714, 904, Profile setting button, 802-804, Base station, 903, Expected electric field, 1008, Two-dimensional electronic map display, 1009, Three-dimensional Display button, 1010, 1103, .. 3D acquisition button (information acquisition button), 1101 .. Viewpoint pull-down, 1102 .. 3D map window,

Claims (4)

In a wireless transmission system comprising a moving transmitting device, a receiving device that receives radio waves transmitted from the transmitting device, and a display unit,
Wherein the display unit, information about the failure in the transmission path between the receiving device and the transmitting device, the viewpoint to view the receiving device from the transmitting device side, perspective view the transmitting apparatus from the receiving apparatus, the transmitting A viewpoint selected by the user from a plurality of viewpoints with different gaze directions prepared in advance, including a viewpoint of viewing the range including the position of the device and the receiving apparatus from the sky and a viewpoint of viewing the range horizontally. , Display using a three-dimensional map,
A wireless transmission system characterized by that. The wireless transmission system according to claim 1,
When the display unit performs display using a three-dimensional map from any viewpoint, in response to the selection of another viewpoint by the user's operation, the three-dimensional display based on the selected other viewpoint Switch to display using a map,
A wireless transmission system characterized by that. In the radio transmission system according to claim 1 or 2,
As the receiving device, there are a plurality of receiving devices,
The display unit has a function of performing display using a two-dimensional map for information regarding a failure in each transmission path between the transmitting device and each of the plurality of receiving devices. In response to the selection of one of the transmission paths from among them by a user operation, the selected transmission path is displayed using a three-dimensional map.
A wireless transmission system characterized by that. The wireless transmission system according to any one of claims 1 to 3 ,
As the receiving device, there are a plurality of receiving devices,
In response to an instruction by a user operation to search for an alternative candidate for a receiving device receiving a radio wave transmitted from the transmitting device, the display unit includes the transmitting device among the other receiving devices. Display using a three-dimensional map for the alternative candidate receiving device determined that there is no failure in the transmission line between,
A wireless transmission system characterized by that.