JP2598620B2 - Monitoring equipment for communication transmission equipment - Google Patents

Description

Description: The present invention relates to a monitoring device for a communication transmission device defined in the generic concept of claim 1.

Such a device is already known from EP 385 126 A2. This known device monitors during operation of a telecommunications technology transmission device and / or
Or it is used for control. In the processor unit having the address, one of a plurality of processor units which exchange information via a message (telegram) transmission network is set and set as a master. If two processor units are incorrectly set as masters, the processor unit set as master switches to slave mode and reports its status. The operation monitoring method (process) operates according to a calling method (also referred to as a polling method). The track sections are connected to each other via a bidirectional data bus. During normal operation, the processor unit transmits all paging messages (telegrams) and response messages (telegrams) arriving at one input side by switching to a plurality of outputs.

One processor unit which allows such a transmission of telemetry messages (telegrams) to all their outputs is known from DE 3806947 A1. Even if a hybrid circuit is used, transmission of a telemetry message (telegram) in a plurality of directions can be performed.

A data transmission device already known from DE 343 644 A1 has a data network with a tree-like (tree) structure. Hierarchical systems are provided (prepared) depending on the data transmission device. As such, each station can be queried and controlled by one master assembly via one bus to the equipment for each station. Each master assembly will itself again be queried and controlled by the upper master (until the entire information is available at one control center). In the lower plane (level) of the system, only the partial information supplied to the level exists each time.

An object or object of the present invention is that the processor unit only has to transmit a plurality of telemetry messages (telegrams) to one output side each time, and all the processor units provided in the monitoring device are replaced by other processor units. The object is to configure the monitoring device of the communication transmission device so that it can receive all telemetry messages transmitted by the unit.

According to the present invention, the monitoring device of the communication transmission device is configured by the method defined in the characterizing part of claim 1. Here, several stations of the central transmission device are monitored. A processor unit having a mirror imaging function can be an additional processor unit or a processor unit of a network element.

The advantage obtained from the means of the invention is that all the desired information is made available to any station by means which can be easily realized by the monitoring device.

Advantageous developments of the monitoring device for monitoring multiple stations or stations of the communication transmission device are specified in claim 2. Here, the processor unit having the mirror image function may be an additional processor unit or a processor unit of one network element.

The advantage of the measure according to claim 2 is that a plurality of stations or stations of the communication transmission device are each provided with a secondary master, to which the function of the primary master can be transferred if necessary. . The primary master has active call and control functions, which control and monitor all functions in the communication network. Another similar master at another station or station is 2
The next master function can listen to data traffic and thereby generate a similar type of alarm and information list.

An advantageous embodiment of the transfer (transition) of the primary master function is shown in claim 3.

By means of claim 4, it is advantageous, especially in view of the intended transmission of the control command, also when one station or station requests the takeover of the primary master function from another station or station. Can be maintained.

Particularly high availability of the monitoring device is obtained by means according to claim 5.

The means of claim 6 provides a double use of the echo function.

 Next, the present invention will be described in detail with reference to the illustrated embodiment.

1 shows a monitoring device for a communication transmission device having a plurality of stations or stations, and FIG. 2 shows one network element (element,
3 and 4 show a sequence diagram for processing a message (telegram) by the processor unit, and FIG. 3 shows a message (telegram) on the data bus. FIG. 4 is for a message (telegram) arriving via the transmission channel.

FIG. 1 shows one section (section) of a communication transmission network, in which a plurality of stations are mutually connected via a communication transmission apparatus. The communication transmission device has stations or stations 1, 2 interconnected via a communication transmission network. At the stations or stations 1, 2 network elements are provided, which are line terminals of digital optical transmission equipment, in particular. With the above-described transmission device, a valid signal is transmitted from one station or station to the other station or station each time. Depending on the transmission device, an active monitoring channel is made available in addition to the active channel each time. The network elements 131..13n; 231..23n are thus interconnected by a network of active monitoring channels, which has the same structure as the communication transmission network used for transmitting the valid signal. .

The network elements 131..13.n; 231..23n each have one processor unit 121..12n; 221..22n, which is used as a monitoring device. Processor unit 1 additionally
Depending on 1,21, it is possible to collect, transmit and store monitoring and control information in the active monitoring network.

In the station or station 1, the processor unit 11 configured as master exchanges information via the data bus 10 with the processor units 121..12n configured as slaves. The data bus 10 includes the reception bus 101 of the transmission bus 102.

The master 11 has its input connected to the transmit bus 10, its output connected to the receive bus 101, and in particular an RS485
Has an interface.

Processor unit 121..1 configured as slave
2n has its data output side connected to the transmission bus 102 and its data input side connected to the reception bus 101, respectively.

Master 11 slaves call messages (telegrams)
Send to 121..12n and receive response message (telegram) from slave. Further, the master 11 transfers the message (telegram) received from the transmission bus 102 to the reception bus 101, respectively.

The data buses 10, 20 of the stations or stations 1, 2 are interconnected using a full-duplex transmission channel 611. The transmission channels 612..61n; 622... 62n reach other stations not shown in FIG.

One of the stations or stations is provided with a processor unit which is operated as a master, ie the primary master in station or station 1 is provided.

The processor units 121 ... 12n of the network elements 131 ... 13n send the messages (telegrams) arriving via the local data bus 10 to the transmission channels 611..61n connected to the respective network elements 131..13n. Forward. Further, the network elements 131..13n are the transmission channels 611.61.
Transfer the message (telegram) received via n to the local data bus.

The same holds for the network elements (elements, components) 231... 23n of the station or station 2 which are connected to the local data bus 20 and have transmission channels 611,
622..62n.

Each further station is provided with a processor unit having a mirror image function, the processor unit having an input connected to the transmission bus and an output connected to the reception bus. And sends the message (telegram) received by the transmission bus to the reception bus. The station or station 2 is provided with a processor unit 21.

The processor units 121 ... 12n; 221 ... 22n are received via their associated transmission channels 611 ... 61n, 622 ... 62n and are sent back via the same transmission channel for messages (telegrams) (reverse transmission). ).

Master 11 is the primary master. A secondary master 21 is used as a processor unit having a mirror image function (function). Every processor unit has an address. One of the processor units formed by the master and the secondary master is set as a primary master, and the other is set as a secondary master.

In the response program of the processor unit used as the secondary master, a request to take over the primary master function can be transferred. The primary master is configured as follows: its primary message in the next message (telegram).
The secondary master function is sent to the requesting secondary master, so that the secondary master mode can be shifted to the secondary master mode.

The primary master can advantageously be blocked from sending its primary master function.

Automatic restart of the primary master function is advantageous in the following cases, i.e., when the processor unit which has transitioned from the primary master to the secondary master mode does not receive a call message nor a response message (telegram) within a predetermined time. Is advantageous.

The processor units 121 ... 12n of the network elements 131 ... 13n of the station or station 1
Are connected to each other and to the primary master via a 4-wire data bus 10. The processor units 221 ... 22n of the network elements 231 ... 23n of the station or station 2 are connected to the secondary master via the 4-wire data bus 20.

Network elements (elements, components) 131 ... 13n
.. Are each connected via a unique transmission channel 611 ... 61.
One remote network element (element, component) is connected, and here, only the network element (element, component) 231 of the plurality of network elements (element, component) is shown in FIG. The remote network element (element, component) 231 is connected to the network element (element, component) 232 ... 23n of the remote station or station 2 via the data bus 20 there. The same goes for additional transmission channels 612..6
1n and 622 ... 62n. As a result, the data buses 10, 20,... Of all stations or stations 1, 2,... Are logically interconnected.

The digital buses 10, 20 are provided with one receive and one transmit pulse 101, 102, 201, 202 for the duplex transmission mode, including all the processor units 121 ... 12n; 62.
1 ... 62n are connected.

The processor units each form a device for sequence control, depending on the device, in the form of network elements (elements, components) or in the master processor unit, the organized (ordered) propagation of information in the network. Is produced.

A message (telegram) rating is provided by the processor unit for the transfer of messages (telegrams) arriving via the transmission channel of one network element (element, component).

The call message (telegram) arrives at the receiving bus 101 of the station or station 1 from the primary master.
To all network elements (elements, components) 131 ... 13n of the station or station 1 from all network elements (elements, components) of the station or station 1 to all associated transmission channels 611 ... 61n. For example, from the network element (element, component) 131 to the network element (element, component) 2310 via the transmission channel 611, and from the network element (element, component) 231 to the transmission bus 202 of the data bus 20 of the station or station 2 From the transmission bus 202 to the secondary master 21, and from the secondary master 21 to the station or station 2 data bus.
20 to the so-called receiving bus 201, from the receiving bus 201 to all the network elements (elements, components) 231 ... 23 of the station or station 2, and to all the network elements (elements, components) 232
(231) ... 23n reach the associated transmission channel 621 ... 62 and (from the network element (element, component) 231 to that channel) all transmission channels reach further stations. And so on.

The call message (telegram) thus reaches all processor units of the monitoring device. The addressed processor unit responds with a response message (telegram). Here, the processor unit transmits the response message (telegram) to the data bus connected thereto and to the transmission channel connected thereto, so that the response message (telegram) is propagated in both directions in the transmission network. You.

The response message (telegram) reaches the primary master 11 via, for example, the following route.

Reaching the network element (element, component) 232 via the transmission channel 622, from the network element (element, component) 232 to the transmission bus 202 of the data bus 20 of the station or station 2, and from the transmission bus 202 to the secondary master 21 From the secondary master 21 to the receiving bus 201 of the data bus 20 of the station or station 2, from the receiving bus 201 to all network elements (elements, components) 232 ... 23n of the station or station 2, Network elements (elements, components) 23
From 2 ... 23n to all the associated transmission channels 622..62n (except for the transmission channel 622 from the network element (element, component) 232) and from the network element (element, component) 231 via the transmission channel 611 To the network element (element, component) 131, from the network element (element, component) 131 to the transmission bus of the data bus 10 of the station or station 1, from the transmission bus 102 to the primary master 11, and to the primary master 11. From the receiving bus with a special job identifier
101, all the network elements (elements, components) 131..13n of the station or station 1 from the receiving bus 101, and all the network elements (elements, components) 13
1 ... 13n to all associated transmission channels 611 ... 61n, for example from a network element (element, component) 131 to a network element (element, component) 231 via a transmission channel 611, and furthermore Reach all stations as in a call.

FIGS. 3 and 4 show sequence diagrams for forming a response message (telegram) in the transmission network. Here, FIG. 3 relates to a response message (telegram) arriving on the data bus, and FIG. 4 relates to a response message (telegram) arriving at the transmission channel concerned.

Each of the stations or the stations 1 and 2 is provided with a processor unit having a mirror image (mirror symmetry or reflection) function. The station or station has a primary master 11, and the station or station 2 has a secondary master 21. The station or station has a primary master 11, and the station or station 2 has a secondary master. Each of the processor units having a mirror image function (which may possibly be a pseudo master) is connected like a master to the data bus of the respective station or station.

Depending on the mirror image function, the network element (element, component) with full duplex transmission by separating the receiving and transmitting paths without additional switching means such as hybrids or couplers
To all other (remaining) network elements (elements, components). The mirror image function is performed by a processor unit configured or operated as a secondary master.
Or by a processor unit connected or operated as a pseudo master (if the station does not have a secondary master for local monitoring). For example, secondary master 21
Transfers the received call message (telegram) to the receiving bus 201 of the data bus 20.

The processor units 121..12n, 222... 22n have a filter function (function). The processor unit 121 ... 12
The response message (telegram) received by n, 222... 22n is recognized by itself as being transmitted, and without the need for additional switching means such as frequency converters or filters. .61n, 622 ... 62n
Suppression of transmission over the network allows unidirectional propagation of messages (telegrams) in a communication network. For example, the network element (element, component) 232 is a response message (telegram) (this is the network element (element, component,
) Is not returned to the transmission channel 622 after reception from the secondary master 21. Further, the primary master 11 receives a call message (telegram) (this is received based on the mirror image function (function) of the secondary master 21).
Is not sent twice.

With regard to the filter function, the processor unit stores a predetermined number of messages (telegrams) each time, in particular the last three messages (telegrams) each time. Half or more stored messages (telegrams) are advantageously cyclically overwritten by newly arriving messages (telegrams).

The primary master 11 has an echo function. Here, the response message (telegram) received by the primary master is provided with a job identifier and transmitted. The filter function of the processor unit is suppressed by a special job identifier for the message (telegram) having the identifier.
Depending on the special job identifier, a response message (telegram) transmitted as an echo from the primary master or a response message (telegram) received each time is distinguished. In particular, the job identifier provided in the message (telegram) structure is selected to be the same number for all response messages (telegrams), and this value can be increased by one each time based on the echo function during transmission. In that way, the response message (telegram) received by the primary master is modified before transmission according to the echo function as follows, i.e., regardless of its field filter function by the processor unit. It is modified to be transferred each time.

Instead of the otherwise required job identifier provided in the protocol, the response message (telegram) sent as an echo can optionally be modified in other forms.

According to the above-mentioned means, re-propagation of a response message (telegram) in a communication network becomes possible. Remote secondary master
Upon receipt of a response message (telegram) transmitted as an echo from the primary master 11 according to 21., the secondary master monitors the entire data traffic and updates its own alarm and message memory contents to the primary. Master 11
Can be the same as that of

Each processor unit, in other words, the processor unit of the network element and the master, is assigned a unique address by coding during the operation of the monitoring device. The coding can be performed by hardware or software. The first part of the address is respectively the same by the processor unit of one station or station and thus forms the address of the station or station concerned. The second part of the address represents a station or a respective processor unit within a station. Each call message (telegram) can be identified by the respective processor unit as pertaining solely to it.

The special addressing of the processor unit allows automatic detection of software support of the structure of the communication network. The primary master sends a paging message (telegram) with one special identifier to each processor unit recorded in its paging list, which is also the processor unit of the network element (element, component) and each Send to secondary master.

Depending on each processor unit receiving such a message (telegram) based on the above identifier, the message (telegram) may be supplemented with two parts of its unique address and forwarded, so that the address-controlled processor The message (telegram) arriving at the unit will contain the addresses of all stations or stations and the processor unit in linked form. There, depending on the message (telegram) transmitted as a response message (telegram) and received by the master, the master describes the cascade connection of the stations or stations and the assignment of the processor units to the stations or stations, and thus the entire structure of the communication network. It can be detected and displayed on the data visualization device 13.

Based on the established network structure and message (telegram) routing, all paging messages (telegrams) of the primary master 11 as well as response messages (telegrams) of all processor units, and any station or station response message (telegram) of the communication network. Telegrams) 1,2. At a further station or station 2, the call and answer messages (telegrams) are heard by a secondary master of the same construction type.

Here, the secondary master 21 etc. may store a call-and-information list (which matches the list stored by the primary master).

Call and command messages (telegrams) always originate only from the primary master 11, which otherwise would result in collisions of data telegrams (messages) on the buses 10, 20 of the station or station 1,2. It is because it is.

All addressed network elements (elements, components) are addressed by the primary master by means of paging or control messages (telegrams). The respectively addressed network element (element, component) responds within a predetermined period of time with the desired information or with the removal of the command.

Each network element (element, component) has a connection to the transmission channel, which connection connects the network element (element, component) locally to the network element (element, component) at a remote station or station. . Each query or command message (telegram) arriving via the data bus is transferred via transmission channels connected by network elements. Messages (telegrams) arriving at the network element (element, component) of one other (other) station or station via the transmission channel are transferred by them to the data bus, so that it is transmitted there via the data bus. Access (routing) to all other (remaining) connected network elements is reached. Only the addressed network element (element, component) responds with the desired information, which is distributed throughout the network on the same path.

If necessary, calls or orders can be sent from other stations or stations, rather than from the stations or stations. To this end, the primary master function can be selectively implemented in each of the stations or stations 1, 2 etc. Depending on the information exchange between the masters 11, 21,..., The original (first) primary master will not make a call as long as another master has the primary master function.

The master is assigned an address like a processor unit of a network element (element, component) and is stored in a call list. Thus, the master can likewise be called cyclically. Due to the secondary master in the response message (telegram) in addition to the intrinsic noise, 1
A request to transfer the primary master function to the next master can also be transmitted.

When the primary master receives the request for primary master function transmission, it transfers its primary master function to the requesting secondary master in the next case, in the normal case, ie, if not blocked by the operational service there, and The device itself immediately shifts to the secondary master operation mode (1 by the secondary master).
(By listening and storing the cyclic call-and-answer message (telegram) continued in the next master function).

During this time, the primary master takes over the secondary master function and is thus in the actual information state.

Returning to the original function as the primary master is performed by a request from the new primary master, by a request from the old primary master, and by calling the address of the new primary master in order. obtain. After receiving the response message (telegram), the new primary master shifts again to the secondary master function.

Advantageously, means are provided for automatically restarting the primary master function in case the old primary master does not receive a call message (telegram) nor a response message (telegram) at the desired time interval. Therefore, the entire communication transmission device can be monitored and controlled from any station for the user or the operation service.

The monitoring device is used for central monitoring of a transmission network consisting of a number of physically separate stations, which have transmission equipment as network elements. The stations of the monitoring device may be processor units, which may include one or more processors. The processor units are interconnected in a linear, star-like or tree-like structure by means of transmission channels, which are made available by the transmission function. In particular, line terminals can be used as transmission equipment.

The control and monitoring are selectively possible from any station. All information from one transmission function and all instructions of the primary master are propagated throughout the network and stored in the local unit, the master of the active monitoring device. If necessary, the information can be transmitted to an alarm device and a personal computer.

The monitoring device shown in FIG. 2 has sufficient coincidence with that of FIG. The difference is that the station or station 2 lacks a network element 21. Network elements (elements, components) 23
One processor unit 221 has its input side and output side connected to the data bus like a master. The processor unit 221 has a mirror image function (function) as a pseudo master.

The primary master or the secondary master can also be one processor unit of one network element.

The stations or stations, each having its own primary master, secondary master or pseudo master, are located at different locations. Optionally, two or more such stations can be located at the same location, eg, at the same. The reticulation of the stations can be carried out as follows, i.e., as if a tree-like structure has been formed. The number of branches in one station or station can be more than one. No lateral (disconnection) connections are made between branches in the dendritic structure.

Each slave is assigned to one transmission device and detects a quality parameter and a fault condition of the transmission device. During operation, the primary master inquires all slaves cyclically about the status of the relevant transmission device. After the inquiry by the primary master, the data is returned in a response message (telegram).

Signaling device connected to the secondary master, especially a PC
(Personal computer) may indicate and optionally store alarms from the system. The control function can only be performed by one master having the primary master function. However, the primary master function can be requested by each secondary master. The system can thereby be controlled from various operating stations, in particular a PC.

Depending on the echo function of the primary master, the secondary master can also receive a response message (telegram) addressed to the primary master. Since the reply message (telegram) transmitted as an echo from the primary master also reaches the processor (from which the reply message (telegram) is derived), the echo function advantageously simultaneously confirms the receipt of the reply message (telegram). Can also be used for When one processor receives a unique response message (telegram) including a job identifier and the like,
It confirms that the response message (telegram) has been properly received by the primary master. Based on such confirmation, the processor unit may reset the memory for storing the message for a short time until transmission to the primary master.

Continued on the front page (72) Inventor Müller, Carl Germany D-8190 Wolf Ratshausen-Waldtram Cardinal-Wendel-Strasse 37 (72) Inventor Lozek, Harald-Roger Germany D-1000 Berlin 47 Michel —Klinitz-Wech 14 Tse (56) References JP-A-61-177838 (JP, A) JP-A-63-231564 (JP, A) European Patent Application Publication 385126 (EP, A)

Claims (7)

(57) [Claims] 1. A station or station (1, 2) interconnected via a communication transmission network, and a processor unit (121 ... 12) of a communication transmission device in the station or station.
13, 13n), wherein a further processor unit in at least one of said stations is a call master. It is configured to exchange information with a processor unit (121 ... 12n) configured as a slave via a data bus (10, 20) as a (primary master), where the processor unit (121..12n) , 221..22
n) is assigned an address, and each addressed processor unit in the device is arranged to answer the call of the master, in each case a data station or station (1,2). A bus (10, 20) is provided, and the data bus includes a first unidirectional bus (101, 201) and a second unidirectional bus (102, 20).
2) and one of the above stations or stations (1)
Each of the processor units (121 ... 12n) configured as slaves is connected with its data output to the transmission bus (102) and with its data input to the reception bus (101), The master (primary master 11) is connected by its input to the transmission bus (102), by its output to the reception bus 101,
Further, the master (primary master 11) receives the message (telegram) received by the transmission bus (102) and receives the message (telegram) by the reception bus (10).
The data bus (10, 20) of the station (1, 2) is connected to the transmission channel (61).
1 ... 61n; 622 ... 62n)
Furthermore, only one of the stations or stations (1) is provided with a processor unit which is operated as a call master (primary master 11), and furthermore comprises a network element (131 ... 13n; 231). ... 23n) is the local data bus (10,2
0) via the transmission channels (611 ... 61n) connected to the respective network element (131 ... 13n; 231 ... 23n), and The message (telegram) received via the transmission channel (611 ... 61n) is transferred to the local data bus (10, 20) and mirrored (mirrored image) at another station or station (2). Each one of the processor units having functions (secondary master 21) is connected by its input to a transmission bus (202), by its output to a reception bus (201), and by a transmission bus (202). Received message (telegram) receiving bus (201)
To the processor unit (121 ... 12n; 22).
1 ... 22n) are the associated transmission channels (611 ... 61n; 622 ... 62)
A monitoring device for a communication transmission device, which is capable of preventing a message (telegram) received via n) from being returned (return transmission) via the same transmission channel. 2. A call master (11) as a primary master and a processor unit (21) having a mirror imaging function (function) as a secondary master are provided, each of said masters having an address. 2. The processor unit defined by claim 1, wherein one of the processor units formed by the master (primary master 11) and the secondary master is a primary master (11) and the other is adjustable as a secondary master. apparatus. 3. An inquiry (request) for transfer or transfer of the primary master function can be transmitted in a response message (telegram) of the processor unit (21) used as the secondary master (21) and used as the primary master. 3. The device according to claim 2, wherein the processor unit (11) is adapted to send its primary master function to the interrogating secondary master and to itself enter the secondary master operating mode. 4. The apparatus according to claim 3, wherein the primary master is capable of blocking its primary master function transmission (discarding). 5. When the processor unit which has shifted from the primary master mode to the secondary master mode does not receive both a call and a response (message) telegram within a predetermined time.
4. The apparatus according to claim 3, wherein automatic restart of the next master function is performed. 6. The processor unit response message (telegram) modified and transmitted by the primary master based on the echo function is also used to confirm receipt of the response telegram by the primary master to the processor unit. The apparatus according to any one of claims 1 to 5. 7. The processor unit response message (telegram) transmitted by the primary master is also used to confirm receipt of the response telegram by the primary master to the processor unit configured as a slave. The device according to any one of claims 1 to 6.