JP3156422B2 - Multiplex radio equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a multiplex radio apparatus for constructing a trunk line and branch line public communication network.

This system usually has a large hardware, and includes a communication device including a digital signal processing section, a modulation / demodulation section, a transmission / reception section, a receiving line signal processing section, a telephone, and the like, a line switching section,
A line switching device including a line switching control unit, a line status monitoring unit, a line switching operation unit, a line status display unit, and the like, and a monitoring device including a device status monitoring unit, a device status display unit, and the like are divided into two units. A variety of structures have been considered to improve operability.

[0003]

2. Description of the Related Art FIG. 9 is an example of a schematic diagram of a conventional multiplex radio apparatus. A conventional multiplex radio apparatus includes a transmission / reception apparatus 210, a modulation / demodulation apparatus 220, a supervisory control apparatus 2 which constitutes the multiplex radio apparatus
30 were housed in separate separate housings.

At the time of installation of the apparatus, each apparatus is fixed in this state, and wiring is performed between the apparatuses to perform installation work. In addition, the required functions are distributed to each device, and the operation and maintenance of the system are performed in a state where the operation locations are also distributed.

[0005]

As described above, in the conventional multiplex radio apparatus, since each device constituting the multiplex radio apparatus is housed in a separate housing and separated from each other, each of the apparatuses is installed when the apparatus is installed. The installation work was complicated, such as individually fixing and wiring between each device. In addition, required functions are distributed to the respective devices, and accordingly, the operation locations are also distributed to the respective devices. Therefore, erroneous operations and processing delays are caused particularly in emergency such as failure processing.

SUMMARY OF THE INVENTION An object of the present invention is to provide a digital multiplex radio apparatus in which installation work is not complicated and operation can be easily performed when the apparatus is installed.

[0007]

FIG. 1 is a schematic diagram of a multiplex radio apparatus according to the present invention. In the figure, 21 and 22 are digital signal processing units, 31 and 32 are modulation units, 33 and 34 are demodulation units,
41 and 42 are transmitting units, 43 and 44 are receiving units, 50 is a demultiplexing unit, 60 is a line switching unit, 65 is a line switching control unit, 70 is a line / device state monitoring unit, 75 is a meeting line signal processing unit,
81 and 82 are power supply units, 85 is a line switching operation unit, 90 is a line / device status display unit, 95 is a telephone for a meeting line, 11
0 is an upper storage shelf, 111 is a cover, 120 is a lower storage section, 130 is a front storage section, 140 is a left storage section of the housing, 1
41 is a holding bracket.

According to the present invention, there is provided a communication function unit having an active transmission system and a standby transmission system for transmitting and receiving signals and performing maintenance and operation meetings with a partner station via a telephone or the like; In a digital multiplex radio apparatus composed of a line switching function unit for performing the operation and a monitoring function unit for monitoring and displaying the state of the device, the input multiplexed bipolar signal is converted into a unipolar signal, and the modulation / demodulation unit 31, 32, two digital signal processing units 21 and 22 for converting the unipolar signal sent from 32 into a working signal and a protection signal, and converting the unipolar signal into a multi-level QA signal.
Two modulating units 31 and 32 modulating by M, the working system and the standby system
And two demodulating sections 33 and 34 for demodulating the received signals sent from the receiving sections 43 and 44, and the modulated waves outputted from the modulating sections 31 and 32 at radio frequencies. The active and standby transmission units 41 and 42 receive the received wave transmitted from the partner station, and the transmission units 41 and 42 receive the received wave transmitted from the partner station. , A demultiplexing unit 50 for separating a received wave transmitted from a partner station, a line switching unit 60 for switching between a working transmission system and a standby transmission system, and automatically controlling the line switching unit 60 A line switching control unit 65, a line / device state monitoring unit 70 for monitoring line quality, equipment failure status, and the like, two power supply units 81 and 82 for supplying power to each functional unit, and the line switching unit 60 A line switching operation unit 85 for manually operating or setting line switching conditions; A line / device status display section 90 for displaying a line switching state, line quality, equipment failure state, etc., a meeting line signal processing section 75 for performing signal processing of a meeting line between radio stations, and a meeting line telephone 95. Stored in one housing.

Then, two digital signal processing units 21 and 22 for the active system and two digital systems for the standby system,
2, the demodulation units 33 and 34, the transmission units 41 and 42,
The receiving units 43 and 44, the line switching unit 60, the power supply units 81 and 82, the line switching control unit 65, and the line / device status monitoring unit 70 are arranged on the upper storage shelf 110.

The splitter 50 is connected to the upper storage shelf 110.
The object can be achieved by arranging it in the lower storage section 120 located below. The demultiplexing unit 50
The line switching operation unit 85 and the line / device status display unit 90 are arranged in the front storage unit 130 located at the front of the device.

A transmission / reception connection point is provided on the front side of the demultiplexing unit 50, and the lower part of the front storage unit 130 for storing the line switching operation unit 85 and the line / device status display unit 90 is rotated. It may be structured to fall forward as an axis.

Further, the line switching control unit 65 and the line / device state monitoring unit 70 are disposed in the housing left storage unit 140, and the meeting line telephone 95 is connected to the line switching control unit 65 and the line / device state. The holding unit 141 of the meeting line telephone 95 is disposed in front of the monitoring unit 70 and the line switching control unit 6.
5. The digital signal processing units 21 and 22 are also used as covers for covering the front of the line / device status monitoring unit 70.
The modulating units 31 and 32, the demodulating units 33 and 34, the transmitting units 41 and 42, the receiving units 43 and 44, the demultiplexing unit 50, the line switching unit 60, the line switching control unit 65, and the line Cover 11 covering switching operation unit 85 and line / device state monitoring unit 70
1 may be separated.

Further, the holding fitting 141 of the meeting line telephone 95 has a left and right upper and lower rotation axis, and the holding fitting 14
1 may be rotated 180 degrees to the left.

[0014]

The digital signal processing units 21 and 22, the modulation units 31 and 32, and the demodulation units 33 and 3 are respectively used for the working system and the standby system.
4, transmission units 41 and 42, reception units 43 and 44, and demultiplexing unit 5
0, line switching unit 60, line switching control unit 65, line / device state monitoring unit 70, two power supply units 81, 82, line switching operation unit 85, line / device state display unit 90, meeting line signal processing unit 75, Since the meeting line telephone 95 is housed in one housing, only one housing needs to be installed at the time of installation of the apparatus, and conventional wiring between each apparatus can be eliminated. In addition, since the operation locations can be integrated into one place, the operation can be facilitated.

Here, the digital signal processing units 21 and
2, modulation units 31, 32, demodulation units 33, 34, transmission unit 4
1, 42, receiving units 43 and 44, line switching unit 60, power supply units 81 and 82, line switching control unit 65, line / device state monitoring unit 70 are arranged in the upper storage shelf 110, and the demultiplexing unit 50 is stored in the upper storage shelf. By arranging it in the lower storage section 120 located below the shelf 110, it is possible to secure a heat radiation space for the heat generating unit while effectively utilizing the mounting space.

Further, the storage section 130 on the front surface of the demultiplexing section 50
A line switching operation unit 85 and a line / device status display unit 90
By arranging and, each unit can be accessed without removing the display unit and the operation unit.

Further, a connection point for transmission and reception is provided on the front side of the demultiplexing unit 50, and the storage unit 130 on the front surface of the demultiplexing unit 50 has a structure in which the storage unit 130 is tilted forward with the lower left and right sides as rotation axes, thereby enabling transmission. When the units 41 and 42 and the receiving units 43 and 44 are exchanged, it is possible to easily access the connection point between the demultiplexing unit and the transmitting / receiving unit.

Further, the line switching control unit 65 and the line / device state monitoring unit 70 are arranged in the left housing unit 140 of the housing, and the meeting line telephone 95 is connected to the line switching control unit 65 and the line / device state monitoring unit 70. Place it on the front side. Then, the holding fitting 141 of the meeting line telephone 95 is connected to the line switching control unit 65.
And a cover that covers the front surface of the line / device state monitoring unit 70. Also, digital signal processing units 21 and 22, modulation units 31 and 32, demodulation units 33 and 34, transmission units 41 and 4
2. The receiving units 43 and 44, the line switching unit 60, the meeting line signal processing unit 75, and the cover 111 that covers the power supply units 81 and 82 are separated.

By doing so, each unit of the transmission system can be independently accessed. The holding fitting 141 of the meeting line telephone 95 is rotated left and right by 180 degrees, and the holding fitting 141 itself is rotated 180 degrees to the left, so that the line switching control unit 65 and the line / device state monitoring. Since the front of the unit of the unit 70 is opened, it is possible to easily access the monitoring / control system unit while communicating with the meeting line telephone 95.

[0020]

An embodiment will be described with reference to FIGS. FIG. 2 is an example of each functional block diagram of the multiplex radio apparatus of the present invention.
FIG. 3 is an example of an external view of the multiplex radio apparatus according to the present invention when the meeting line telephone is removed, FIG. 4 is an example of an external appearance view of a demultiplexing unit of the multiplex radio apparatus of the present invention, and FIG. FIG. 6 is a front view example of the wireless device excluding the meeting line telephone, the line switching operation unit, and the line / device status display unit. FIG. 6 is a front view example of the multiplex wireless device of the present invention in which a cover is attached to an upper storage shelf.

FIG. 7 is a view showing an example in which the front storage unit of FIG. 3 is tilted forward with the rotation axis at the lower left and right sides. FIG. It is a figure showing rotating to the left.

In the figure, the same reference numerals as those in FIG.
Reference numeral 10 denotes a baseband signal branching unit for branching a baseband signal input from the transmission device side, 111 denotes a cover of an upper storage shelf, and 112 to 115 denote pipe cables for connecting between a transmitting / receiving unit and a branching unit. is there.

First, a description will be given of an example of a block diagram of a multiplex radio apparatus according to the embodiment of the present invention shown in FIG. The bipolar signal from the transmission device is split into two, an active system and a standby system, in a baseband signal splitter 10 and converted into unipolar signals by digital signal processors 21 and 22, respectively. Then, the signals are subjected to multi-level QAM modulation by the modulation units 31 and 32, superimposed on the radio frequency by the transmission units 41 and 42, and transmitted to the demultiplexing unit 50. In the demultiplexing unit 50, the working signal is usually selected from the working signal and the protection signal by a built-in switch (not shown), and transmitted to a partner station via an antenna via a band filter (not shown). You.

The received wave from the partner station is input to the demultiplexing unit 50 via an antenna, separated from the transmitted wave by a demultiplexer (not shown), passed through a reception bandpass filter, and used by a splitter. It is branched into a system and a standby system. Then, the signals are sent to the receiving units 43 and 44 and demodulated by the demodulating units 33 and 34, respectively.
Next, the unipolar signals demodulated by the demodulation units 33 and 34 in the digital signal processing units 21 and 22 are converted into bipolar signals, and the line switching unit 60 selects one of the working system and the standby system, usually the working system. Sent to the transmission device.

For common functions, the line switching control unit 65 automatically controls the line switching unit 60, and the line / device state monitoring unit 70 monitors line quality, device failure status, etc. The processing unit 75 performs signal processing of a meeting line between wireless stations.

One of the two power supply units 81 and 82 supplies power to the working system units and common function units, and the other supplies power to the standby system units and common function units. Further, the line switching operation unit 85 manually operates the line switching unit 65 and sets line switching conditions, and the line / device status display unit 90 displays a line switching status, a line quality, a device failure status, and the like.

Next, the example of the external view of FIG. 3 shows an example of mounting of each functional unit mounted on the upper storage shelf 110 among the functional units constituting FIG. Although not shown, a slit hole is provided on the upper surface of the main storage shelf 110 to serve as an exhaust port for dissipating heat generated from the transmission units 41 and 42 in particular.

The relationship between the functional units constituting FIG. 2 and the functional units shown in FIG. 3 is as follows. TX1 in FIG. 3 is equipped with a working modulation unit 31 and a transmission unit 41 in FIG.
3 implements the receiving unit 43 and the demodulating unit 33 of FIG. 2, and BU / UB of FIG. 3 designates the baseband branching unit 10, the digital signal processing unit 21, and the digital signal processing unit 21 of FIG. 22,
In addition, the line switching unit 60 is mounted. The same applies to the spare TX2 and RX2.

FIG. 4 shows an example of a mounting state of the branching unit 50 mounted on the lower storage unit 120.
The demultiplexing unit 50 is mounted by utilizing an intake space for heat radiation of each functional unit mounted.

The demultiplexing unit 50 is roughly divided into three parts: a transmitting side, a receiving side, and an antenna side. The transmitting units 41 and 42 and the power units 81 and 82 shown in FIG. The branching unit 50 is arranged so as to avoid the mounting position.

On the front face of the main storage unit 120, as shown by the thick pipe cable in FIG. 5, the transmitting side and the receiving side of the demultiplexing unit 50 and the transmitting units 41 and 42 and the receiving unit 43, respectively. The connection part of the demultiplexing unit 50 is located so that the connection with 44 can be easily performed.

On both left and right sides of the main storage unit 120,
Slit holes are provided to serve as air inlets for dissipating heat generated from the transmission units 41 and 42 and the power supply units 81 and 82.

FIG. 5 is an example of a front view excluding the meeting line telephone 95, the line switching operation unit 80, and the front storage unit 130 for storing the line device status display unit 90.
2 and the demultiplexing unit 50, and the demultiplexing unit 50 and the receiving units 43 and 44.
The example of connection by the pipe cables 112-115 between them is shown.

FIG. 6 shows the front of the multiplex radio apparatus of the present invention in a normal operation state. The position of the rotation axis of the front storage unit 130 shown in FIG. 7 and the meeting line telephone shown in FIG. 3 shows the position of the rotation axis with respect to the holding bracket 141 of FIG.

FIG. 7 is an example showing that the front storage unit 130 of FIG. 3 has a structure in which the front storage unit 130 is tilted forward with the left and right lower left portions serving as rotation axes, as viewed from the right side of the apparatus. And
When inserting / removing the pipe cables 112 to 115 shown in FIG.
Insert and remove.

FIG. 8 is a diagram of the apparatus viewed from the upper side.
The line switching control unit 65 stored in the upper storage shelf 110 located after the meeting line telephone 95 is shown in FIG.
And when it is necessary to operate the line / device state monitoring unit 70, the holding bracket 141 is rotated 180 degrees to the left so that it can be easily implemented even while calling the partner station. It is.

[0037]

As described above in detail, according to the present invention, it is possible to reduce the floor space by storing all the functions of the apparatus in one housing and reducing the size. By consolidating the function operation parts in one place, easy operation can be made possible.

Further, since the branching unit is arranged below the heat generating unit, a space for intake air can be secured, and the height of the apparatus can be reduced as much as possible. When a plurality of devices are installed, a lower exhaust space can also be used.

Further, by disposing the display unit and the operation unit from the front of each unit and by setting the front of the branching unit, it is possible to access each unit without removing the display unit and the operation unit.

Also, there is an effect that the connection point between the demultiplexing unit and the transmitting / receiving unit can be easily accessed when the transmitting unit and the receiving unit are exchanged.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating an example of a multiplex radio apparatus according to the present invention.

FIG. 2 is a block diagram illustrating an example of a configuration of a multiplex radio apparatus according to the present invention.

FIG. 3 is an example of an external view of the multiplex radio apparatus of the present invention when a meeting line telephone is removed.

FIG. 4 is an example of a mounting external view of a demultiplexing unit of the multiplex radio apparatus of the present invention.

FIG. 5 is an exemplary front view of the multiplex radio apparatus according to the present invention, excluding a meeting line telephone, a line switching operation unit, and a line / device status display unit.

FIG. 6 is an example of a front view in which a cover is attached to an upper storage shelf of the multiplex radio apparatus of the present invention.

FIG. 7 is a diagram showing that the front storage unit of FIG. 3 is tilted forward with the lower left and right sides as rotation axes.

FIG. 8 is a view showing that the holding bracket of the telephone for the meeting line rotates leftward with the left and right upper and lower portions as rotation axes.

FIG. 9 is an example of a schematic diagram of a conventional multiplex radio apparatus.

[Explanation of symbols]

 Reference Signs List 10 baseband branching unit 21, 22 digital signal processing unit 31, 32 modulation unit 33, 34 demodulation unit 41, 42 transmission unit 43, 44 reception unit 50 demultiplexing unit 60 line switching unit 65 line switching control unit 70 line / device status Monitoring unit 75 Meeting line signal processing unit 81, 82 Power supply unit 85 Line switching operation unit 90 Line / device status display unit 95 Meeting line telephone 110 Upper storage shelf 111 Cover 112-115 Pipe cable 120 Lower storage unit 130 Front storage unit 140 Left storage section 141 Holder 210 Transmitter / receiver 220 Modulator / demodulator 230 Monitoring control device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B 1/74 H04B 1/38 H04B 1/02 H04B 1/06

Claims (5)

(57) [Claims] 1. A communication function unit having an active transmission system and a standby transmission system for transmitting and receiving signals and conducting maintenance and operation meetings with a partner station via a telephone or the like, and a line for monitoring lines and switching lines. In a digital multiplex radio apparatus composed of a switching function unit and a monitoring function unit for monitoring and displaying the state of a device, an input multiplexed bipolar signal is converted into a unipolar signal, and a demodulation unit (33, 34). ), Two digital signal processing units (21, 22) for converting the unipolar signal sent from the current system into a bipolar signal.
A working system and a protection system for modulating the unipolar signal with multi-level QAM; and a working system and a protection system for demodulating a reception signal sent from a reception unit (43, 44). Two demodulators (33, 34); and two transmitters (41, 4) for transmitting the modulated waves output from the modulators (31, 32) at radio frequencies.
2) an active system and a standby system for receiving the received wave transmitted from the partner station; two receiving units (43, 44); a transmitting wave transmitted from the transmitting unit (41, 42); A demultiplexing unit (50) for separating a received wave sent from a station, and a line switching unit (60) for switching between an active transmission system and a standby transmission system
A line switching control unit (65) for automatically controlling the line switching unit (60); a line / device state monitoring unit (70) for monitoring line quality, device failure status, etc .; Two power supply units (81, 82) to supply
A line switching operation unit (85) for manually operating the line switching unit (60) and setting line switching conditions; and a line / device state for displaying a line switching state, line quality, a device failure state, and the like. A display unit (90), a meeting line signal processing unit (75) for performing signal processing of a meeting line between radio stations, and a meeting line telephone (95) are housed in one housing, and the working system and the standby system Each of the two digital signal processing sections (21, 22), the modulation sections (31, 32), the demodulation sections (33, 34), the transmission sections (41, 42), and the reception section (43). , 44), the line switching unit (60), the power supply units (81, 82), the line switching control unit (65),
The line / device status monitoring unit (70) is placed in the upper storage shelf (11).
0), and the demultiplexing unit (50) is disposed in a lower storage unit (120) located below the upper storage shelf (110). 2. The front storage unit (13) according to claim 1, wherein the front storage unit (13) is located in front of the branching unit (50).
0), wherein the line switching operation unit (85) and the line / device status display unit (90) are arranged. 3. The line switching operation section (85) and the line / device status display section (90) according to claim 2, wherein a transmission / reception connection point is provided on the front side of the branching section (50). A multiplex radio apparatus characterized in that it is structured to fall forward with the lower part of the front storage part (130) to be stored as an axis. 4. The meeting line telephone (95) according to claim 1, wherein the line switching control section (65) and the line / device state monitoring section (70) are arranged in a housing left storage section (140). To the line switching control unit (6
5) and the front of the line / device state monitoring unit (70), and the holding bracket (14) of the meeting line telephone (95).
1) is also used as a cover for covering the front surfaces of the line switching control unit (65) and the line / device state monitoring unit (70), and the digital signal processing units (21, 22) and the modulation unit (31, 32), the demodulation sections (33, 34), the transmission sections (41, 42), the reception sections (43, 44), the demultiplexing section (50), the line switching section (60), and the line switching control. Section (65) and the meeting line signal processing section (7
5) and a cover (11) covering the power supply units (81, 82).
A multiplex radio apparatus characterized by being separated from 1). 5. The holding device (14) according to claim 4, wherein the holding line (14) of the meeting line telephone (95) is provided.
1) A multiplex radio apparatus characterized in that the holding bracket (141) rotates 180 degrees to the left with the upper and lower left sides as rotation axes.