JPS5949029A - Monitor system of multiplex radio device - Google Patents

Abstract

PURPOSE:To detect a fault that cannot be detected only by a self-diagnosis with a duplex radio device, by folding a part of the using side output of a transmitter back to a receiver at the side of a spare device. CONSTITUTION:Hybrid circuits (a) and (b) are provided to transmitters TA and TB respectively, and an input is possible to base band processors RX1 and RX2 by means of a switch SW2 or SW3 of a receiver after switching an SW1. At the transmitter side an input base band signal IN is divided into SYS1 and SYS2 through the hybrids and then delivered to a TX1. These SYS1 and SYS2 are divided again by the hybrids. One of these two divided signals is sent to a TX2, and the other is selected by the SW1 and delivered to the receiver side. Both SW1 and SW4 interlock with each other and select the signal of the using side and monitor it by the processor RX1. The transmission information is received by a spare system of the receiver, and a synchronizing signal is detected. Thus it is possible to detect a fault of own device under transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a monitoring system for multiplex radio equipment, and in particular, in a hot standby multiplex radio equipment, a part of the output of the active side of the transmitter is transmitted to the standby equipment side. By returning to 48 aircraft,
The present invention relates to a monitoring system for L2 multiplex radio equipment 1d so that failures that cannot be detected by the transmitter alone are detected by the receiver of its own station.

(2) Conventional technology and problems Conventionally, when transmitting and receiving multiplexed signals wirelessly from a carrier terminal station, etc., each transmitting side equipment system and receiving equipment system has a self-diagnosis function to prevent failures from occurring. What is being done is dealing with it. The redundant system button switches to the standby system when a ζ failure occurs.

However, if a failure that cannot be detected in the transmission 4Q occurs, an alarm will be generated for both the working and standby systems in the receiver of the other station, and -
It is determined that there is a failure at the previous station (fading or a transmission error at the other station), and the line is disconnected. Therefore, even if a redundant system configuration is used, it is not easy to detect where on the transmitting side the failure occurs and whether it is an i5 problem or whether the failure is caused by an external factor during transmission0 (3 ) OBJECT OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks by providing a method for pre-empting a part of the current output of a transmitter in a multiplex radio device using an I/standby system. We present a monitoring system for multiple radio fε that makes it possible to detect faults that cannot be detected by self-diagnosis alone by looping back to the fM4i and side receivers.

(4) Structure of the Invention In order to achieve the above object, the present invention provides a multiplex radio device in which both the transmitting system and the receiving system are duplexed, in which a part of the output of the active side or the standby side of the transmitting device is received on the standby side. The present invention is characterized in that it includes a switch means for returning the signal back to the device, and monitors a failure in the transmitting device using the received wave ψ.

(5) Examples of the invention The present invention will be explained in detail below using examples.

The drawing is a block diagram of a monitoring system for multiple radio equipment according to the present invention.

] In C, E is a carrier terminal station, TA and TB are duplex transmitting devices, RA, RB are duplex receiving devices, C is an antenna for transmitting and receiving with the other station, L vibrator, and a lid circuit. , CNT is the first division of the system.

Number of transmissions jtTA, TB+1. jBaseband processing device T
X.

(SYS,, 5YS2), Micro Kokoro J=Il
! Consisting of the first RTX2 (SYSI, 5YS2),
Receiver/end device C1yaA.

RB is the baseband processing unit GoRX+ (SYS
1. SYS2), microwave processing device RX2 (
It consists of SYSI, 5YStji, etc. Normally, one of the transmitting devices TA, TB and the receiving devices RA, RB is used, and the other is reserved. iji and na fuswitch j9w4. SW5 is different! To the power of moonlight
The receiver transmits the received information, and the receiver receives the transmitted information, making it possible to quickly switch from standby to active by switching the system when a cursive occurs. .

Therefore, the present invention provides a transmitter & IMTA, 1'BK hybrid circuit (B), turns off the switch SW1, and selectively switches the baseband processing unit to either the receiver switch SW'* or SW3. It is possible to input to RX+, RXt.Then, on the transmitting side, the input band information is a hybrid SYS, 5YS2.
After being divided into TX and output, respectively, HA5YSr
, 5YSt are selected and transmitted. 5XV1. SW4 is Ren! ! 4 to 9% signal (select and receive R)
Mengshi is in X1. On the receiving side, S to receive
Receives the TX output via W, , and transmits the current T
X, is monitored by the backup RX. 8%.

S W31 SW 6! Well, linked.

If the receiving side SW, SW4 is switched to the standby mode and becomes normal, it can be determined that there is a failure in the TX and 01, and if the RX is at the error level, it can be determined that the RX is at fault.

In the detour device 1:5, baseband processing A4i f
JT, X1 inserts a control signal, synchronization signal, etc. into the multiplexed signal inputted from the carrier terminal E, and the microwave processing device TX2 converts the digitized signal into a microwave and sends it to the antenna CJ:, 9 Perform the process fi[ to enable transmission. On the other hand, Uke 4M device? , the received microwave is digitized by a microwave processing device X2,
Baseband processing device RX controls No. 1, No. 6, etc.
Send tel+ and output OUT to transport end @E.

Here, as previously discussed, the transmission information (digitized signal) from the current Jn system of the transmission 111β'' iron is prepared for the reception wave □f;i
: Receives and returns on the 'i system, and detects the check rate (parity check) of the l1TIJ4'J signal, thereby detecting a failure in the own device during the j-g 63° to the phase i-station. possible.

In addition, in this example, the feeding control section CNT is set with the SW4 hx switch W, SW, SW, (-"
rSwitch and transmit at the same time! ;iN, the usage system is shown as an example of fault monitoring in the reception system ;j system, and μυ
Village-to-village deformation can be considered by controlling the switches of Kasa and Wabi (1 crane f':!j), which are monitored by the transmission system.

(6) Hikari 11's Sukehira and I were wondering, ``1.''However, according to the present invention, it is not possible to determine the correct signal by only sending 4n' prompts, such as in particular the digital control device N. Even if it is certain that old detection is not possible, if you use your own prediction (, i 5+,
・It is possible to monitor 0 works, and it is very effective to practice it.

[Brief explanation of drawings]

In the example of 1d ≦ congratulatory banshiki of the drawing (one utterance),
・Shiru Isaka Kaizu Demeru. TA, TB: Transfer device Rh, RB: Receiving machine

Claims (1)

[Claims] In a multiplex radio device in which both the transmitting section and the receiving section are duplexed, a switch means is provided to return part of the output of the active side or standby side of the transmitting device to the standby side receiving device, and the transmitting device is connected to the receiving device. A monitoring method for multiple radio equipment characterized by monitoring faults in multiple radio equipment.