WO2012046359A1 - 伝送状態表示装置 - Google Patents

伝送状態表示装置 Download PDF

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Publication number
WO2012046359A1
WO2012046359A1 PCT/JP2011/001414 JP2011001414W WO2012046359A1 WO 2012046359 A1 WO2012046359 A1 WO 2012046359A1 JP 2011001414 W JP2011001414 W JP 2011001414W WO 2012046359 A1 WO2012046359 A1 WO 2012046359A1
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Prior art keywords
transmission
state
information
wireless transmission
base station
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PCT/JP2011/001414
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English (en)
French (fr)
Japanese (ja)
Inventor
良太 中村
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株式会社日立国際電気
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Application filed by 株式会社日立国際電気 filed Critical 株式会社日立国際電気
Publication of WO2012046359A1 publication Critical patent/WO2012046359A1/ja

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing

Definitions

  • the present invention relates to a transmission state display device that displays a transmission state, and more particularly, to a transmission state display device that effectively displays a transmission state.
  • a micro reception base station system which is a wireless transmission system as shown in FIG.
  • many techniques have been considered for the state display and state analysis of the transmission path. For example, in connection with digitalization of wireless transmission, introduction of a new evaluation index, information support that complements the difficulty of state determination with video, and the like are being studied.
  • FIG. 6 shows an example of a transmission state display method according to a conventional example. This method is the same as the method for displaying the fluctuation range and stability of the transmission state disclosed in the “transmission state display device” according to Patent Document 1 by the applicant of the present application. Specifically, an evaluation value in a transmission state is displayed in a meter 301, a reference line 302 indicating a minimum level required for wireless transmission in an evaluation index of the evaluation value, a fluctuation trajectory of the evaluation value, and each value , And the stability 304 calculated based on the evaluation value and the fluctuation value thereof are displayed together.
  • a method of quantifying the state of image data such as a constellation and a delay profile by a predetermined evaluation method is employed.
  • the system user can recognize the margin of the wireless transmission state, which cannot be determined by the video, in stages through meter values, images, display colors, and the like.
  • each transmission line should be evaluated based on the transmission state in the past predetermined period. Is required. Also, in particular, in sudden attenuation due to changes in weather, temperature, humidity, etc. during aerial transmission, what kind of change is seen with respect to the latest fluctuation rather than the total fluctuation range of the past predetermined time? Specific information is necessary.
  • an object of the present invention is to provide a transmission state display device capable of effectively displaying a transmission state.
  • a transmission state display device that displays information related to the state of wireless transmission has the following configuration. That is, the evaluation value acquisition unit acquires an evaluation value that changes with time in relation to the state of wireless transmission.
  • the time change rate acquisition unit acquires the temporal change rate of the evaluation value based on the evaluation value acquired by the evaluation value acquisition unit.
  • the information display means displays information on the temporal change rate acquired by the time change rate acquisition means.
  • the transmission status display device has the following configuration. That is, information regarding the state of wireless transmission is acquired for each of two or more wireless transmission paths in a transmission path including a plurality of wireless transmission paths.
  • the information display means displays information on the state of wireless transmission acquired for each of two or more wireless transmission paths in the transmission path on the same screen.
  • the transmission status display device has the following configuration. That is, the transmission state determination unit determines that the wireless transmission state is worse than the predetermined state based on a predetermined determination rule.
  • the information display means includes one or more wireless transmission paths determined by the transmission state determination means that the wireless transmission state is worse than a predetermined state among the two or more wireless transmission paths in the transmission path. If there is, display information about it.
  • the transmission state display device can effectively display the transmission state.
  • FIG. 3 is a diagram illustrating a configuration example of a micro reception base station system having a transmission path having a plurality of transmission paths.
  • FIG. 6 is a diagram showing an example of a display indicating a state of the latest state change with respect to an evaluation value of a wireless transmission state. It is a figure which shows an example of the display of several information including the latest state change.
  • FIG. 4 is a diagram showing an example of a wireless transmission state display in a transmission path including a plurality of transmission paths. It is a figure which shows an example of the transmission status display method which concerns on a prior art example.
  • FIG. 1 shows a configuration example (system example) of a micro reception base station system.
  • the micro reception base station system of this example has a transmission point 1 (transmission point A), a base station 2, a head office 3, and a transmission point 4 (transmission point B).
  • the transmission point 1 includes a transmission unit 11 and an antenna 12.
  • the base station 2 includes a rotation receiving antenna device 21, a receiving unit 22, a transmitting unit 23, a fixed antenna 24, a modem unit 25, and a controlled terminal station 26.
  • the head office 3 includes a fixed antenna 31, a reception unit 32, a rotary reception antenna device 33, a reception unit 34, a decoding unit 35, an information generation unit 36, an information editing unit 37, an operation terminal 38, a control terminal station 39, and a modem unit 40.
  • the transmission point 4 includes a transmission unit 41 and an antenna 42.
  • the transmission point 1 and the transmission point 4 as the transmission source of the broadcast material have an FPU that can be moved by an automobile, a helicopter, etc., and are located at the relay site, and the head office 3 as the transmission destination of the broadcast material Is fixedly installed, and a base station 2 serving as a relay station between the transmission point 1 and the head office 3 is fixedly installed on the summit or the like.
  • the transmission unit 11 converts the material into a microwave signal that can be wirelessly transmitted, and transmits the radio wave from the antenna 12.
  • the transmission unit 11 encodes an SDI (Serial Digital Interface) signal into a TS (Transport Stream) signal that is a frame format of a fixed-length packet format used for FPU transmission, and modulates it to an intermediate frequency signal. After that, the frequency is converted to the microwave band and transmitted to the antenna 12.
  • SDI Serial Digital Interface
  • TS Transport Stream
  • the radio wave transmitted from the transmission point 1 is received by the rotary receiving antenna device 21, and the received signal is sent to the receiving unit 22.
  • the receiving unit 22 has a function of, for example, converting a received microwave band signal into an intermediate frequency signal, then demodulating the signal into the TS signal, and decoding it into an SDI signal.
  • the receiving unit 22 in the base station 2 of the present example only needs to have a function for converting to the above-described TS signal with no signal degradation.
  • the TS signal obtained by the receiving unit 22 is transmitted to the transmitting unit 23 and transmitted by radio waves from the fixed antenna 24. Similar to the reception unit 22, the transmission unit 23 in the base station 2 only needs to have a function of converting a TS signal into a microwave band signal at a minimum.
  • the radio wave transmitted from the base station 2 is received by the fixed antenna 31, and the received signal is decoded into an SDI signal by the receiving unit 32 and the decoding unit 35 and sent to the main line.
  • the material is transmitted as a signal from the antenna 42 through the transmission unit 41.
  • the transmission point 4 has the same function as the transmission point 1 described above, for example.
  • the signal from the transmission point 4 is directly received by the rotary receiving antenna device 33, and the received signal is decoded into an SDI signal by the receiving unit 34 and the decoding unit 35 and sent to the main line.
  • the base station 2 in wireless transmission using the micro-reception base station system of this example, how efficiently the base station 2 can receive radio waves from the transmission point 1 becomes important. That is, the direction of the reception antenna (rotary reception antenna device 21) in the base station 2 must be changed depending on the position of the transmission point 1. For this reason, in the micro receiving base station system, the receiving antenna (rotating receiving antenna device 21) is a rotating base that can be rotated by remote control from the head office 3.
  • This control monitoring method is as follows.
  • a control packet transmitted from the operation terminal 38 to the network is received by the control terminal station 39 and converted into a serial signal.
  • the serial signal described above is modulated into, for example, an analog signal by the modem unit 40 and transmitted to the base station 2.
  • This analog signal is received by the modem 25 in the base station 2 and demodulated into the serial signal described above, and then transmitted to the controlled terminal station 26.
  • the controlled terminal station 26 decodes the serial signal (control signal) and controls the rotation receiving antenna device 21.
  • monitoring information such as an angle in the rotation receiving antenna device 21 in the base station 2 is sent to the controlled terminal station 26 as a monitoring signal.
  • the controlled terminal station 26 transmits the information (monitor signal) as a serial signal to the modulation / demodulation unit 25, and the modulation / demodulation unit 25 modulates the serial signal into, for example, an analog signal and transmits the analog signal to the head office 3.
  • the modem unit 40 in the head office 3 demodulates the received signal into the serial signal described above and transmits it to the control terminal station 39.
  • the control terminal station 39 decodes the received serial signal and transmits it to the network as a monitoring packet.
  • the operation terminal 38 receives the monitoring packet and displays it as information on a screen on the operation terminal 38.
  • the rotation receiving antenna device 2 in the base station 2 can be controlled and monitored.
  • the reception level and transmission level in the reception unit 22 and transmission unit 23 installed in the base station 2 transmission / reception channel (frequency band), modulation method, transmission output, decoding method, for example,
  • transmission / reception channel frequency band
  • modulation method for example
  • transmission output for example
  • decoding method for example,
  • the selection of the contact of the signal switching device the selection of the input and output of signals related to the signal multiplexing device and the signal separation device, the operation terminal 38, the control terminal station 39, Control and monitoring can be performed by transmitting a series of signals in the order of the controlled terminal station 26 and the control device (device to be controlled).
  • the signal switch is provided in the base station 2 when, for example, a plurality of reception signals are obtained by the reception unit 22 of the base station 2 and one of the signals is selected as a transmission signal. A plurality of signals output from the unit 22 are input, switching is performed so that one of the signals is selected, and the selected signal is output to the transmission unit 23 as a transmission signal.
  • the signal multiplexing apparatus is provided in the base station 2 when a plurality of reception signals are obtained by the reception unit 22 of the base station 2 and these signals are multiplexed to be a transmission signal, and is output from the reception unit 22. A plurality of signals are input, these signals are multiplexed, and a multiplexed result signal is output to the transmission unit 23 as a transmission signal.
  • the head office 3 is provided with a signal separation device, which separates the multiplexed signal received by the fixed antenna 31 into a plurality of original signals and outputs them to the reception unit 32.
  • TMCC including transmission parameters such as the reception frequency and modulation method in the reception units 22 and 34 is provided as more detailed information for adjusting the direction of the reception antenna.
  • the head office 3 superimposes support data such as Transmission and Multiplexing Configuration Control information, reception level, margin (Margin Degree), BER, MER (Modulation Error Ratio), delay profile, and constellation on the above-mentioned TS signal. Can be transmitted to the unit 36.
  • the information generation unit 36 separates the support data superimposed on the TS signal based on the signals from the reception units 32 and 34, edits the support data by the information editing unit 37, Information such as the result can be displayed on a screen on the operation terminal 38.
  • the reception unit 22 of the base station 2 and the reception unit 34 of the head office 3 multiplex information (an example of support data) of transmission state evaluation values into an MPEG TS signal, and the information is stored in the head office 3.
  • the information generator 36 separates the TS signal and sends it to the information editor 37.
  • the receiving unit 32 and the receiving unit 34 of the head office 3 can directly send to the information editing unit 37.
  • FIG. 2 shows a configuration example (system example) of a micro reception base station system having a transmission path having a plurality of transmission paths.
  • the micro reception base station system of this example is similar to the one shown in FIG. 1, for example, and includes a transmission point 101 (transmission point A), a base station 102 (base station A), a head office 103, a transmission point 104 (transmission point). B), and further includes a base station 105 (base station B) and a transmission point 106 (transmission point C).
  • the transmission point 101 includes a transmission unit 111 and an antenna 112.
  • the base station 102 includes a rotary reception antenna device 121, a reception unit 122, a transmission unit 123, and a fixed antenna 124. Note that, in this example, a part mainly related to signal radio transmission is shown, but a modem unit and a controlled terminal station are also provided.
  • the head office 103 includes a fixed antenna 131, a reception unit 132, a rotary reception antenna device 133, a reception unit 134, a decoding unit 135, an information generation unit 136, an information editing unit 137, and an operation terminal 138. In this example, the portion mainly related to wireless transmission of signals is shown, but a control terminal station and a modem unit are also provided.
  • the transmission point 104 includes a transmission unit 141 and an antenna 142.
  • the base station 105 includes a rotating reception antenna device 151, a reception unit 152, a transmission unit 153, and a fixed antenna 154.
  • the transmission point 106 includes a transmission unit 161 and an antenna 162.
  • the transmission point 106 is operated as a transmission point to the base station 105, the base station 105 uses the base station 102 as a relay base station to the head office 103, and a plurality of transmission paths from the transmission point 106 to the head office 103. Transmission using a transmission path including
  • the material is wirelessly transmitted as a signal from the transmission unit 161 through the antenna 162.
  • a signal from the transmission point 106 is received by the rotating reception antenna device 151, and wirelessly transmitted from the fixed antenna 154 via the reception unit 152 and the transmission unit 153. This signal is received by the rotation receiving antenna device 121 of the base station 102.
  • the operation of the transmission point 106 is the same as the operation of the other transmission points 101 and 104
  • the operation of the base station 105 is the same as the operation of the other base station 102
  • these operations and operations at the head office 103 are shown in FIG. 1 is the same as that shown in FIG.
  • FIG. 3 shows an example of a display indicating the state of the latest state change for the evaluation value of the wireless transmission state.
  • a margin value which is one of evaluation indexes in digital wireless transmission, is used as the evaluation value of the wireless transmission state.
  • a graph 201 of the latest data for the margin value which is one of the evaluation indexes in digital wireless transmission, shows the highest value 202 and the lowest value 203 between them, and the overall change slope (this In the example, the temporal change rate) is displayed by a numerical value 204 (in this example, “ ⁇ 3 dB / 5 minutes”) and an arrow 205 (in this example, the same content as the numerical value 204 is shown).
  • This arrow 205 expresses the degree of inclination by the inclination of the arrow.
  • the horizontal axis represents time [minute]
  • the vertical axis represents margin [dB].
  • 0 [minute] represents the current time (time), and minus represents the past.
  • the inclination of the arrow 205 may be displayed in a predetermined number of steps depending on the numerical value of the change inclination.
  • a display effect such as changing the display color step by step according to the value of the change inclination for some displays. Therefore, it is also possible to use a method that makes the display of the arrow 205 clearer by displaying the inclination and the display color in association with each other in accordance with the stepwise level.
  • the monitoring period (the denominator of the calculated value) for calculating the change slope can be arbitrarily set according to the operation mode of the wireless transmission.
  • the degree of the latest change that was unknown in the conventional method for example, it is possible to cope with an abrupt change in the evaluation value between the highest value and the lowest value recorded as past results.
  • a state deteriorates due to a change in climate or the like there may be a sudden change (for example, fading) that leads to a failure after a significant change in a very short period in the initial stage.
  • the time change rate of the evaluation value of the transmission state is displayed as in this example, it is possible to easily detect the decrease in the value due to the initial fluctuation as described above, and this can be transmitted to the user. It is possible to warn.
  • the display method of this example can also be applied to a temporarily established transmission line that supports information about wireless transmission after establishment of the transmission line by the rotating antenna receiver in the conventional method.
  • the purpose of a prior attention function in a fixed transmission line for the purpose of constant transmission established in a fixed manner is strong.
  • FIG. 4 shows an example of display of a plurality of pieces of information including the latest state change. Specifically, regarding an evaluation value of a transmission state such as a margin, a rating value 211 ([A] in this example) based on the current evaluation value, and a stability 212 (in this example) similar to that shown in FIG. , “70” (%)), and an arrow 213 (corresponding to the arrow 205 shown in FIG. 3) representing the latest state change is displayed.
  • these pieces of information 211, 212, and 213 are described in a square (in this example, the outer rectangle), and the rating value 211 and the stability 212 are set in other squares (in this example). , Inside rectangle).
  • an evaluation value such as a margin or a received electric field value is divided into a plurality of stages, and each stage is expressed as A, B, C,. Can be used. It is also possible to control the display color for each piece of information 211, 212, and 213.
  • the current value of the evaluation value in this example, the rating value 211
  • the degree of state stability in this example, the stability 212
  • the latest fluctuation in this example, the arrow 213
  • Such display of a plurality of information 211 to 213 is performed by, for example, a display device (in this example, the operation terminals 38 and 138 of the head offices 3 and 103 having a control interface from the user to the micro reception base station system of this example. ) And the like, it is effective when considering the screen area efficiency of the display screen, and is effective for a display layout or the like when simultaneously displaying a plurality of evaluation indices and a plurality of transmission path states.
  • FIG. 5 shows an example of display of the wireless transmission state in a transmission path including a plurality of transmission paths, as a display example using the evaluation method and display method described above.
  • This example shows a case where the present invention is applied to the micro reception base station system shown in FIG. 2, and specifically, wireless transmission from the transmission point 106 (transmission point C) to the head office 103 is taken as an example.
  • the transmission path is established in advance using the preset function in the display device (in this example, the operation terminal 138 of the head office 103).
  • the preset function is a function for automatically controlling the rotation receiving antenna devices 121 and 151 in the base stations 102 and 105 in a predetermined direction based on pre-registered data.
  • the display example of FIG. 5 shows an initial receiving base station (in this example, “base station B”) and a final receiving base station (in this example, “head office”) in the micro receiving base station system of this example.
  • Evaluation based on label 221, transmission path 222 from the initial receiving base station to the final receiving base station, and each evaluation index (in this example, received electric field strength (BL), margin, constellation) in the receiving unit of each transmission path Information 223 (similar to that shown in FIG. 4) of the combination of the value, the stability, and the arrow indicating the latest fluctuation, the evaluation value (total evaluation value) 224 for the entire transmission path for each evaluation index, and the alarm message 225 is displayed.
  • each evaluation index in this example, received electric field strength (BL), margin, constellation
  • the transmission path 222 includes a transmission point 106 (transmission point C), a wireless transmission path, a base station 105 (base station B), a wireless transmission path, a base station 102 (base station A), a wireless transmission path.
  • the transmission path is in the order of the head office 103.
  • reception units transmission states (reception in this example) in each of the reception unit 152 of the base station 105 (base station B), the reception unit 122 of the base station 102 (base station A), and the reception unit 132 of the head office 103 Information) is displayed.
  • the direction of the arrow line indicating the transmission path is different between the transmission at the rotating gantry and the transmission at the fixed gantry.
  • OK stable
  • WG warning
  • NG defective
  • the margin time change rate of the transmission path between the base station 102 and the head office 103 is lowered for the margin, and the margin is WG.
  • an alarm message 225 a message “Headquarter: Fixed reception unit margin is decreasing due to period fluctuation” is displayed for warning.
  • the base station on the transmission path from the initial reception point is determined in the display device that performs the display. For this reason, in the display device of this example, for example, a method of storing transmission routes in a table in advance when each base station is an initial reception point and storing them in a memory, or a plurality of preset functions when performing a preset function A method of discriminating a target base station by automatically interlocking with the base station is used.
  • the initial reception base station for example, the base station closest to the transmission point, etc.
  • the route to the final reception point may be automatically detected by the device, for example, or by the user (person) It may be set by an operation to be performed.
  • the display device displays the transmission path 222 on the display screen and simultaneously displays information related to the state evaluation.
  • the number of evaluation items to be displayed increases, so that it is preferable to display as much space as possible.
  • the method of displaying the information 223 of the combination of the rating value, the stability, and the arrow as in this example is suitable for efficiently displaying the evaluation value based on a plurality of evaluation indexes at each point.
  • an evaluation index (total evaluation value 224) of the entire transmission path it may be displayed for each evaluation index (BL, margin, constellation in this example) as in this example, or other
  • the worst result among the determination results based on the respective evaluation indexes is displayed in a comprehensive manner (for example, the worst one is not displayed in three lines of BL, margin, and constellation). Line display) may be performed.
  • a warning in this example, an alarm message 225
  • a warning is displayed on the screen of the display device, or a warning (sound) is displayed.
  • the display method as shown in FIG. 4 is used, but for example, the display method of the change slopes 204 and 205 as shown in FIG. 3 may be used.
  • Various aspects of the display related to the evaluation value of the transmission state in this example will be described.
  • Various evaluation values of the transmission state may be used.
  • received field strength (BL), margin level, error rate (eg, BER), modulation error ratio (MER), constellation, delay Values relating to profiles and the like can be used.
  • the evaluation value and the stability may be acquired by various calculation methods.
  • a rating value based on the evaluation value of the transmission state for example, the rating value 211 shown in FIGS. 4 and 5 and the overall rating value 224 shown in FIG. 5 and the stability (for example, FIGS. 4 and 5). 3
  • the rate of change over time for example, the change slopes 204 and 205 of the evaluation value shown in FIG. 3 and the arrow 213 shown in FIGS. 4 and 5.
  • the color for example, a combination of “blue, green, yellow, orange, red (indicating stability, good, warning, danger, defective)” or “blue (or green), yellow, red (respectively, , Indicating stability, warning, or failure) ”or the like.
  • the figure for example, it is possible to use a mode in which the size or inclination of the arrow is changed.
  • the inclination of the arrow is changed, and when the inclination of the arrow is positive (positive), it is directed upward. When it is negative (negative), it faces downward, and the larger the value, the larger the inclination.
  • an aspect in which the size of an exclamation mark (!), A star shape, or the like is changed to “large, medium, or small (indicating stability, warning, or defect, respectively)” can be used.
  • a combination of “circle, triangle, and square (indicating stability, warning, and defect, respectively)” can be used as the graphic.
  • a value for example, a rating value, a stability, an arrow, A mode of displaying information on a total value for all transmission paths
  • a mode of displaying information on a total value for example, the worst value
  • a display related to a single wireless transmission path as shown in FIG. 3 can be displayed on a screen of an LCD (Liquid Crystal Display) or the like of an FPU receiver corresponding to each transmission path.
  • Collective display of two or more wireless transmission paths as shown in FIG. 5 can be performed on the display device of the FPU receiving base station remote controller.
  • a remote control monitoring system for transmitting a signal through one or more wireless transmission paths, an initial transmission point and a final reception point of wireless transmission , A function for discriminating each wireless transmission path that is a transmission path necessary for the wireless transmission, and a function for obtaining an evaluation value (for example, an evaluation value for each evaluation index) regarding the reception state in each transmission path And a rating value calculated from a predetermined calculation based on a change in at least an evaluation value in the past predetermined period (in this example, it may or may not be the latest) (Evaluation value for each evaluation index) is determined, and the wireless transmission path from the initial transmission point to the final reception point of the wireless transmission is determined (for example, for each evaluation index or for all evaluation indexes). Overall) to display the status of the most rating lower transmission line in each transmission path the overall evaluation value of the radio transmission path.
  • the remote control monitoring system of this example it is possible to support the detection of the change in the transmission state in each transmission path by displaying, for example, the temporal change rate of the evaluation value in the display device related to wireless reception.
  • displaying by displaying using numerical values, a small number of characters, colors, and figures, it is possible to realize a clear display at a glance.
  • comprehensive information display corresponding to the status display regarding the transmission path involving a plurality of wireless transmission paths can be realized, and for example, simultaneous monitoring of a plurality of transmission paths is possible. Display can be performed, and efficient and precise information provision can be performed for a system operation user.
  • the information display means (in this example, for example, the functions of the operation terminals 38, 138) displays the information on the temporal change rate acquired by the time change rate acquisition means (in this example, for example, FIG. Display as shown in FIG. 4 and FIG. Therefore, by displaying information on the temporal change rate of the evaluation value, for example, it is possible to notify the user of the latest temporal change rate and the like, and effectively display the transmission state. it can.
  • the transmission status display device may be provided anywhere in the system, for example.
  • Various types of information may be used as information regarding the state of wireless transmission to be displayed.
  • Various evaluation values that change with time regarding the state of wireless transmission may be used.
  • evaluation values of two or more different characteristics may be used.
  • the temporal change rate for example, those with various periods (start point and end point) may be used.
  • various display methods such as numerical values, characters, colors, and graphics may be used.
  • the transmission status display device has the following configuration. That is, information regarding the state of wireless transmission is acquired for each of two or more wireless transmission paths in a transmission path including a plurality of wireless transmission paths.
  • the information display means displays information on the state of wireless transmission acquired for each of two or more wireless transmission paths in the transmission path on the same screen (in this example, for example, a display as shown in FIG. 5). . Therefore, information regarding the state of wireless transmission in a transmission path including a plurality of wireless transmission paths can be displayed for the user to easily understand, and the transmission state can be displayed effectively.
  • all of the plurality of wireless transmission paths may be included. It may be good or a part.
  • a mode of displaying information on the same screen for example, it is a group of screen display contents, but since it does not fit on one physical screen (for example, one screen such as a display), the entire screen can be scrolled. This includes cases that can be seen.
  • the transmission status display device has the following configuration. That is, the transmission state determination means (in this example, for example, the functions of the information editing units 37 and 137 or the operation terminals 38 and 138) is based on a predetermined determination rule and the wireless transmission state is worse than the predetermined state. Judge that.
  • the information display means includes one or more wireless transmission paths determined by the transmission state determination means that the wireless transmission state is worse than a predetermined state among the two or more wireless transmission paths in the transmission path. If there is, information about it (in this example, for example, the overall rating value 224 in FIG. 5 or the information 223 of the combination of the rating value, the stability, and the arrow or both of them) is displayed.
  • the predetermined state in the case where it is determined that the wireless transmission state is worse than the predetermined state, various states may be used, and a predetermined state for performing such a determination may be used. Various determination rules may be used.
  • a mode for displaying information related to the presence of one or more wireless transmission paths that are determined to be bad compared to a predetermined state various modes such as numerical values, characters, colors, figures, and the like can be used. A display method may be used. (End of description of configuration example)
  • 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.
  • a hardware resource including a processor, a memory, etc.
  • a processor is read by a ROM (Read A configuration controlled by executing a control program stored in (Only Memory) may be used.
  • each functional unit for executing the processing may be configured as an independent hardware circuit.
  • the present invention can be grasped as a computer-readable recording medium such as a floppy (registered trademark) disk or a CD (Compact Disc) -ROM storing the control program, or 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.

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  • Computer Networks & Wireless Communication (AREA)
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  • Maintenance And Management Of Digital Transmission (AREA)
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