DE3119940C2 - Coupling field with coupling modules - Google Patents

Abstract

In the case of a switching network, which is composed of switching modules, each containing several crosspoints, a specific arrangement of reserve modules ensures that operation can be maintained while the defective module is replaced in the event of a fault in a module. Use, for example, in cross-switch panels in recording studio technology.

Description

a) at least one column serving as a reserve, so-called reserve column (13, 23, 33, ... in F i g. 2), the multiple additional column lines are assigned, so-called reserve column lines,

b) at least one line serving as a reserve, so-called reserve line (s'.i, s'. 2, s'3, ... ), to which several additional line lines are assigned, so-called reserve line lines,

Input groups are connected in parallel to one another, characterized in that reserve outputs of a sub-switching network are connected to reserve inputs of another sub-switching network and vice versa (Fig. 6).

6. Coupling matrix according to the preamble of claim 1 or one of the other claims with output amplifier modules, characterized in that at least one reserve output amplifier module (AVt) with associated crosspoints (coupling modules 1 s "\ 2s") over the required number of output amplifier modules and coupling points is' ...) are provided which can be switched as a replacement in the same way assigned for a failed output amplifier block (AVT) crosspoints (coupling modules 1.1,2.1, ...), and that between the outputs of the switching matrix and the output amplifier blocks an output Emergency coupling (AK) is switched to transfer the output signals of the reserve output amplifier module (A Vt) to the outputs (Y) provided for the failed output amplifier module (AV 1} (FIGS. 7 to 9).

which can be switched jointly to a bypass route for a defective coupling module that the reserve column lines connected or connectable to the reserve row lines via a first reserve coupling module (33 in FIG second reserve coupling module (s'. \) can be connected to the column lines belonging to the defective coupling module (3.1), control means being provided to switch through the coupling points of at least one of the two reserve coupling modules mentioned in the same way as with the defective coupling module.

2. Switching matrix according to claim 1, characterized in that that the crosspoints of the other of the two reserve coupling modules mentioned after one fixed pattern can be switched through.

3. Switching matrix according to claim 1 or 2, characterized in that the connections between the reserve row and column lines are established via associated output and input amplifiers will.

4. Switching network according to the preamble of claim 1 or one of claims 2, 3, characterized in that over the required number of input amplifier modules and coupling modules, at least one input amplifier module corresponding reserve (p ') and an associated reserve of columns. or reserve coupling modules (s ". \, s" 2, ... ) arranged in rows with common inputs, so-called extension inputs, and an input emergency switching network is provided which is parallel to the switching network inputs on the input side and to the extension inputs of the column or row on the output side of reserve coupling modules (s ".l, s" .2, ... ) leads (Figs. 4 and 5).

5. Switching matrix according to one of the preceding claims, which is divided into sub-switching matrices, whose The invention relates to a switching network as specified in the preamble of claim I. It's for that Sound, television studio technology and the like provided.

A switching matrix system, especially an electronic one Switching matrix system, consists of the elements

Input amplifier,
Crosspoint,

Output amplifier.

As a rule, several individual elements with the same function are combined into assemblies. There are z. B. the following assemblies, where A, B, C, D mean whole positive numbers:

Input amplifier assembly (module) with a number A of input amplifiers,
Coupling module (coupling module) with a number B of inputs and a number C of outputs,

Output amplifier assembly (module) with a number D of output amplifiers.

If these assemblies are interconnected to form larger switching networks, the system price and -size, the smaller the more elements of a type can be combined to form an assembly.

However, this desirable property is offset by the disadvantage that the treatment of an occurring Error is made much more difficult.

If a switching matrix is only made up of individual elements, so it is known, in case of failure z. B. a crosspoint that connect an input to an output should, this coupling point via an already existing jack field, but only to the inputs and outputs of the overall switching network has access to bridge (emergency connection). After that, the defective Coupling point replaced during operation and then the emergency connection interrupted. (Manual der Tonstudiotechnik, 3rd edition, 1979, p. 469/470). However, if there are several elements in a building

group, the handling of an error becomes considerably more complex. After bridging the defective path as usual it must be checked whether any other element of the assembly, e.g. Z in function ÜL This is true to, so must either

a) wait until the module is "free", then can it be changed, or

b) For each function there must be a connection via the external jack field, whereby the change of these connections will not be audible allowed.

Both possibilities are part of a complex operational sequence, especially in the case of assemblies with many Elements, very critical and offer the possibility of error.

It is the object of the invention to provide a switching matrix for the To create sound, television studio technology and the like with coupling modules, which in the event of a defect in one Assembly can be easily replaced or repaired without disrupting operation got to.

This object is achieved by the switching network with the features of claim 1. Advantageous Further developments are given in the subclaims.

The solution according to the invention enables a computer-aided emergency operation in which as defective recognized modules are replaced by reserve modules during operation. Be there at the same time the defective assemblies are »activated«, d. H. separated from signal lines, and can be used without any problems be replaced.

On the basis of exemplary embodiments, which are shown in the drawings with standardized reference numerals are, the invention is explained in more detail. It shows

F i g. 1 is a block diagram of a known switching network as a starting point for the invention,

F i g. 2 and 3 a switching network expanded according to the invention for the trouble-free handling of accidents in Coupling modules,

F i g. 4 and 5 an extended coupling field to deal with accidents in input amplifier modules,

F i g. 6 a block diagram for a modification of the invention for dealing with accidents in coupling and / or input amplifier modules,

Fig. 7 an expanded switching matrix for coping of accidents in output amplifier modules and

F i g. 8 and 9 detailed modifications to FIG. 7th

ZuFig.l:

The starting point is a coupling matrix of size X to Y (X = number of coupling network inputs; Y <= ■ number of coupling network outputs) with a number ρ = X / A of input amplifier assemblies EV, a number q <m Y / D of output amplifier assemblies AV and a number ί · r - X / B times Y / C of coupling modules KB, whereby it should be assumed that A, B, C, D (see introduction to the description) are chosen as a reasonable implementation requires. For example, the coupling modules 1.2, 2.2, 3.2, ... form a column, the coupling modules 3.1,3.2,3.3, ... a row of coupling modules in this switching network.

For the sake of simplicity, C = D is chosen.

With the aid of the expanded switching network shown in FIG. 2, it is now possible to deal with a breakdown of a coupling module without interference. In order to be able to replace a switching module KB , the switching matrix is extended by a reserve column and a reserve line as follows:

The switching matrix receives

(X + 2 D) - X 'inputs and
(Y + D) = Y ' outputs.

A coupling module column 13 ... s'3 serves as a reserve column (with <· '- X' / BX your outputs (auxiliary outputs An) are assigned 2 D inputs so that these two independent coupling module rows are assigned. These inputs lead divide into switching matrix, which serve as reserve lines.

In the event of an accident, for. B. the following.
Connections are made with the coupling module 3.1, one of which is defective. The same connections are then first switched through in a reserve coupling module 33 , so that the same signals are present at the auxiliary outputs An that would be present at the outputs of the coupling module 3.1 if there were no errors. In the example given, these signals are fed into the first and last inputs of the switching matrix. After deleting the connections in the coupling module 3.1, the connections can be made via the reserve coupling modules U or s'3.

F i g. 3 shows one of the possible signal flows in the

Drive (normal) and average case.

In Figure 4, an expanded switching network is shown, which is suitable for the trouble-free continuation of operation in the event of failure of an input amplifier module EV

In order to be able to continue operation undisturbed in the event of a breakdown of an input amplifier module £ V, the number of inputs of the coupling network has been expanded to include inputs (extension inputs) to X " . The number of coupling modules KB is supplemented accordingly

The whole is referred to as the main switching network.

In addition, an input emergency switching network of size X to A is connected upstream of the main switching network. The overall switching network created in this way has the following restrictions, which make it particularly easy to implement:

a) A coupling points are assigned to an input amplifier module EV and combined in terms of control technology to form a unit, so that little control effort is required.

b) The inputs of the input emergency switching network become corresponding inputs of the main switching network connected in parallel, d. H. only in the event of an accident do the signals pass through two switching matrices.

The latter property is e.g. B. is important if for cost reasons for the incoming average switching network a relay switch is used, while the main switch is made up of electronic crosspoints consists.

In the event of an accident z. B. if an input amplifier fails in the input amplifier module its inputs via the input emergency coupling

b5 the extension inputs connected to the reserve line s ". \, s" .2, ... to lead. The connections that were previously switched via the coupling module 1.1 are now switched via the coupling module s ". \ .

5 6

F i g. 5 shows the signal flows in the operating and Hava amplifier module, however, when removing the shouted Output amplifier bypassed interference-free.

If one of them fails, it is suitable for large switching networks The input amplifier module shown in FIG. 6 illustrated advantages of the invention

Variant. 5

In the case of large switching networks with many outputs, the invention can easily be integrated into existing systems

It is usual to integrate the switching network with A "inputs and K outputs. The design of new systems can be divided into sub-switching networks, the respective inputs of which, taking into account the new boundary conditions , are more optimally designed gang groups with X inputs each parallel to one another. The invention can possibly be switched However, each sub-switching network only has one output, which can also be taken over into existing systems, but has a share of the total V outputs

Undisturbed operation in the event of a breakdown in a sub-switching network. Further options

possible.

If there is a switching matrix X times Yz. B. from two part 15 The invention can be used in single and three-stage coupling coupler fields of X by Y / 2, the Teilkoppeiiei- fields are used, in three-stage fields it is the 1 and 2 in FIG. 6 to the size (X + A) times (Yl- but only useful, the damage to input amplifier 2 + A) . The additional outputs of the binary and / or output amplifier modules in the antenna sub-switching network are to be met with the additional inputs. The described inputs of the first sub-switching network and reversals can in some cases also be used for monitoring and listening purposes.

In the event A > C , this arrangement enables all described emergency facilities

Operation in the event of an accident of both an input amplifier can be combined. Here is another saving module and a coupling module are possible. of assemblies possible in that z. B. a number

F i g. 7 relates to a circuit arrangement in order to counter 25 of D outputs for coupling module and output of an output amplifier module A V can be used for amplifier module damage. In order to avoid malfunctions with the accident The specified configurations are minimal

of an output amplifier module ready for figurations. In large systems, multiple use can be made, so a coupling matrix of size X by Y will make sense. The control of the emergency outputs, ie a reserve output amplifier functions can be expanded manually, semi-automatically and fully automatically with the associated reserve column. Follow.

In addition, the switching network is an output average. In the semi-automatic case, the various

Switching network AK of the format D times Y supplemented, the emergency functions of which are carried out by a computer. Switches as changeover switches U ₁ , Ui, ... according to FIG. 35 must report failure to the computer. A fully automatic

In the event of an accident, z. B. If the exit table fails, the system can be used if there is a Amplifier module AVl, circuits are made in the reserve of a measuring system.

column made so that the reserve output

Stronger module t the same signals as on (undisturbed- see 8 sheets of drawings

ten) AVi are present. Then the toggle switch U \ from 0 to 40
switched to "1", which bypasses the AVi output amplifier module.

A disadvantage of this circuit is the fact that
the signal always passes through an additional switch,
the z. Z. with reasonable effort only as non-electrical 45
tronic switch can be performed.

One version that avoids this disadvantage is in
F i g. 8 shown. It assumes that the outcome of the
Output amplifier module AV can be switched off. That
is z. B. on the unbalanced side of an output 50
Transformer O through an electronic switch Sa
possible, which is then part of the output emergency coupling with the switches Sb, Sc in the two
In the latter cases, the output emergency switching network can be remotely controlled manually or automatically. 55

In Fig. 9 shows an emergency circuit in which
normally the signal has no further switch
flows through

The backup output amplifier module AV
incoming line is with the output of the defective ω
Output amplifier module AV through switch 5
connected as soon as the defective output amplifier module AV is removed. This is achieved in that
the switches S are kept open by the existing output amplifier module AV. Here- 65
this does not automatically disconnect the failed output amplifier module from the output in the event of a fault.

Claims (1)

Patent claims: i. Coupling array with coupling modules, the column lines and associated therewith crossed row lines and in the column lines associated columns and the row lines associated rows are arranged and the several crosspoints for each electrical connection of a column line with one Contain row line, characterized in that that one about the per se with regard to the number of switching matrix inputs and outputs required number of columns, rows, column lines and row lines exceeding Reserve is provided containing: