DK156500B - MATRIX CONNECTION FIELD WITH CONNECTING UNITS - Google Patents

Description

DK 156500 B

The invention relates to a coupling field as defined in the preamble of claim 1. It is intended for audio, television study, and the like.

A switching field system, in particular an electronic switching field system, consists of the elements 5 input amplifier, switching point, output amplifier.

As a rule, several single elements with sairane function are put together for component groups. 10, e.g. following component groups where A, B, C, D are whole positive numbers;

Input amplifier component group (unit) having a number A of input amplifiers, switching point component group (switching unit) having a number B of inputs and a number C of outputs, output amplifier component group (unit) having a number D of output amplifiers.

If these component groups are linked to larger switching fields, the smaller the plant cost and size 20, the more elements of a type that can be assembled into a component group.

However, in view of this undesirable property, the disadvantage is that the treatment of an occurring error is considerably difficult.

If a coupling field is made up of only individual elements, it is known, e.g. in the event of a switching point failing to connect an input to an output, to shunt this switching point over an ever-present jack panel, which, however, only has access to the total switching field inputs and outputs (node connection). Then, the faulty switching point is replaced during operation and then the node connection is disconnected. (Handbuch der Tonstudiotechnik, 3rd edition, 1979, pages 469/470).

35 However, if there are several elements in a component group, the processing of an error becomes considerably more complicated. After the defective path has been shunted in the usual manner, it must be checked whether

DK 156500B

2, any other element of the component group is currently operational. In this case, either a) wait until the component group is "free" after which it can be switched, or 5 b) for each function, a connection must be made over the external jack panel, whereby the switch of these connections must not be audible.

Both options are in a complex operation process, 10 especially for component groups with many elements, very critical and present error possibilities.

The invention aims at providing a coupling field with coupling units which, in the event of a defect in a component group, readily allow replacement or repair thereof without the need for the operation to be disturbed therefrom.

This task is solved with a coupling field with the features specified in the characterizing part of claim 1. Advantageous further developments are indicated in the subclaims.

The solution according to the invention enables a computer-aided node operation, in which component groups found to be defective are replaced by spare component groups during operation. Thereby, at the same time, the defective component groups are "decoupled", ie. separate from 25 signal lines and they can be replaced seamlessly.

The invention is explained in more detail below on the basis of some embodiments illustrated with similar reference numerals in the drawing, in which FIG. 1 is a block diagram of a known coupling field as a starting point for the invention; FIG. Figs. 2 and 3 show an extended coupling field in accordance with the invention for interference-free elimination of breaks in coupling units; Figures 4 and 5 show an extended coupling field for eliminating breakdowns in input amplifier units; 6 is a block diagram of a variant of the invention for the elimination of breaks in coupling and / or coupling 3;

DK 156500 B

FIG. 7 is an expanded coupling field for eliminating breaks in output amplifier units; and FIG. 8 and 9 detail variants of FIG. 7th

FIG. 1, soin output base shows a switching field of size X to Y (X = number of switching field inputs Y = number of switching field outputs) with a number p = X / A of input amplifier component groups EV, a number of g = Y / D of output amplifier component groups 10 AV and a number of s * r = X / B x Y / C of coupling units KB, assuming that A, B, C, Df according to the preamble of the description are chosen as necessary for a reasonable realization. For example, the coupling units 1.2, 2.2, 3.2, ... a column Qg the coupling units 15 3.1, 3.2, 3.3, ... form a Union of coupling units in this coupling field.

For simplification, select C = D.

By means of the device shown in FIG. 2, it is possible to deal with a defect in a coupling unit interference-free. In order to be able to replace a clutch unit KB, the clutch field is used by a reserve column Gg and a reserve line is expanded as follows:

The switching field gets (X + 2 D) = X 'inputs and (Y + D) = Y' outputs.

25 As a spare column, a coupling unit column serves 1.3 ... s'.3 (with s '= X' / B). To its outputs (auxiliary outputs Ag), 2 times D inputs are connected such that they are connected to two independent switching unit lines.

These inputs lead to coupling field parts which serve as reserve lines.

In a case of a break, e.g. f0lgende.

It is assumed that the coupling unit 3.1 has connections through which one is defective. First, the same connections are then routed through a spare connector 3.3, so that the same signals that in the error-free case would be above the outputs of the connector 3.1 are above the auxiliary outputs A1.

These signals are applied to the 4 in the example given

DK 156500 B

first and last inputs on the switch field. Upon termination of the connections in the coupling unit 3.1, the connections may be passed over the spare coupling units 1.3 or s.3.

FIG. 3 shows one of the possible signal currents in the operational case (normally the case) and in the break case.

FIG. 4 shows an extended coupling field suitable for interruption-free operation of the output of an input amplifier unit EV.

10 In order to be able to continue operation undisturbed by the failure of an input amplifier unit EV, the number of inputs on the switching field has been extended by inputs (extension inputs) to X'1. The number of KB units is supplemented accordingly. Their entirety was referred to as the main switching field.

In addition, an input emergency connection field of size X x is connected in front of the main switching field. The total switching field created in this way has the following limitations, which makes it particularly easy to realize: a) A switching points are connected to an input amplifier unit EV and to a unit, so that a small control technical call is required.

B) The inputs of the input node coupling field are connected in parallel with corresponding inputs of the main coupling field, ie. only in the event of a break, the signals pass through two switching fields.

The latter property is e.g. important if, for the sake of the cost of the input node switching field, a relay switching field is used, while the main switching field is made up of electronic switching points.

In case of breakage, e.g. upon failure of an input amplifier in the input amplifier unit, its 35 inputs across the input node coupling field coupled with the expansion inputs leading to the reserve line s '' .1, s '' .2, .... The connections that were previously coupled over the coupling unit 1.1 are now coupled over the coupling 5

DK 156500 B

device s1'.1.

FIG. 5 shows the signal currents in the operating case and the j break time.

For large switching fields, in the case of 5, an input amplifier unit suitable for use in FIG. 6.

For large switching fields with many outputs, it is common to divide the switching field with X inputs and Y outputs into sub-switching fields whose input groups with each X inputs are connected in parallel with each other. However, every 10 subconnection fields has only a proportion of the total Y outputs. In this case, a modified coupling as shown in FIG. 6 an undisturbed operation in the event of a sub-field failure.

Is a coupling field X x Y made e.g. of two sub-coupling fields of X x Y / 2, the sub-coupling fields 1 and 2 of FIG. 6 extended to the size (X + A) x (Y / 2 + A), The additional outputs in the second subconnection field are connected to the additional inputs in the first subconnection field and vice versa.

20 In the case of A - C, this design enables operation in defective both of an input amplifier unit and of a switching unit.

FIG. 7 relates to a circuit for the detection of a defect in an output amplifier unit AV. In order to be able to cope with a defect in an output amplifier unit without interruption, a coupling field of size X x Y is extended with outputs, ie. with a spare output amplifier unit t with associated spare sails. In addition, the coupling field is supplemented by an output decoupling field AK of the format D x Y, whose couplers are designed as switches U1, U2, ... as shown in FIG. 7th

In defective cases, e.g. upon failure of the output amplifier unit AVI, couplings are made in the spare column, so that over the reserve output amplifier unit t is the same signals as above (the functional) AVI. The switch then becomes 6

DK 156500 B

switched from 0 to "1", bypassing the output amplifier AVI.

A disadvantage of this coupling is the fact that the signal always passes through a further coupler which at present with an acceptable supply can only be designed as a non-electronic coupler.

An embodiment by which this disadvantage is avoided is shown in FIG. 8. It assumes that the output of the output amplifier AV is disconnected. It is e.g. possible 10 on the asymmetrical side of an output transformer ü by means of an electronic coupler Sa, which is then constituted by the output node coupling field with couplers Sb, Sc. In both of the latter cases, the output node switching field can be controlled manually or automatically.

FIG. 9 shows a node coupling where the signal under normal conditions does not pass through any additional couplers.

The wire coming from the reserve output amplifier unit AV is connected to the output of the defective output amplifier unit AV by means of couplers S as soon as the defective output amplifier unit AV is removed. This is achieved by holding the switches S open by means of the existing output amplifier unit AV. Thus, in the event of a disturbance, the dropped output amplifier unit 25 is not automatically separated from the output, but the intact amplifiers in the output amplifier unit are bypassed interference-free upon removal of the output amplifier.

Advantages of the Invention: The invention can be easily integrated into existing systems. Under the new boundary conditions, the design of new systems can be designed more optimally. Optionally, the invention can also be taken over in existing plants, if there are alternative routes.

35 Additional options:

The invention can be used in one and three stage fields. In three-stage fields, however, it is only appropriate to detect a defect in the input amplifier and / or

Claims (7)

1. Matrix coupling field for establishing electrical connections between line and column lines, which are in accordance with the number (X) of inputs and outlets respectively. the number (Y) of outputs, with coupling modules, each containing several switching points and connected to several column and line lines and arranged in lines and columns, characterized by the existence of spare column lines (L2) and spare line lines ( L1) with at least one associated coupling module spare column (1.3, 2.3, 3.3, ... in Fig. 3) respectively. coupling module spare line (s'.1, s'.2, s * .3 ...) which together can be coupled to a bypass path (L3, L2, L1) for a faulty coupling unit (3.1) by 35 spare column lines (L2) connected or coupled to the reserve line cables (L1) over a first spare coupling unit (3.3 in Fig. 3) in the spare sail can be connected to the line cables (L3) belonging to the faulty coupling unit (3.1). ) and the spare line lines over another spare coupling unit (s.1) can be connected to the defective coupling unit (3.1) of the defective coupling unit (3.1), where there are control means for passing the coupling points in at least one of the two mentioned spare coupling units in the same way as in the defective coupling unit. Coupling field according to claim 1, characterized in that the coupling points in the second of the two said spare coupling units are passable through a fixed sample. 3. A coupling field according to claim 1 or 2, characterized in that the connections between the reserve line and the column lines are established over the corresponding output and input amplifiers. Switching field according to the preamble of claim 11 or according to claim 2 or 3, characterized in that in addition to the required number of input amplifier units and switching units, there is at least one input (p ') corresponding to an input amplifier unit and an associated reserve of columns or line-mounted spare coupling units (s ''. 1, s ''. 2, ...) with common inputs, so-called expansion inputs, and an input node coupling field, which on the input side is parallel to the coupling field inputs and on the output side. leads to the expansion inputs of the column and the line of spare coupling units (s ''.!, s ''. 2, ...), respectively (Figs. 4 and 5). 5. A switching field according to one or more of the preceding claims, which is divided into sub-switching fields, whose input groups are connected in parallel with each other, characterized in that spare outputs on one sub-connection field are connected to spare inputs on another * 5 C sub-connection field. and vice versa, (Fig. 6). DK 156500 B Hereby a further saving of component groups is possible by e.g. a number of D outputs can be used for switching unit and output amplifier unit failure cases. The specified configurations are minimum configurations. In large plants, a multiple use may be appropriate. The control of the node functions can be done manually, semi-automatically and fully automatically. In the semi-automatic case, the various node functions can be performed by a computer, in which a controller has to notify the computer of success or non-success. A fully automatic application of the system can take place in the presence of a measurement system. 20 PATENT REQUIREMENTS 6. Switching field according to the preamble of claim 1 or according to one or more of the other requirements with output amplifier units, characterized in that, in addition to the number of output amplifier units and switching points required by themselves, there is at least one spare output amplifier unit (AVt) with associated switching points (switching units ^. 1 ', 2r11', ...) which, as a substitute, are switchable in the same way for a dropped output power amplifier (AVI) associated switching points 10 (switching units 1.1, 2.1,. ..) and that between the output field of the coupling field and the output amplifier units, an output node coupling field (AK) is connected to transmit the output signals of the spare output amplifier unit (AVt) to the output output amplifier unit (AVI) present (Fig. 7-9).