SU651392A1 - Remote indication frequency-division apparatus - Google Patents

Description

I

The invention relates to telemetry and can be used in frequency systems for determining the state of two-arm objects.

We know the frequency devices of those signaling systems that contain filters, power sources and generators connected to the dispatching push & lm (DP) l at controlled sites (CPs). The equipment KP of these devices is not reliable enough.

The closest to the invention to the invention is the nacroTv device of the telesignal signal, which contains the tunable frequency generator at the control room, the input of which is connected to the object keys and the indicator, the tunable frequency generator output is connected to a two-wire communication line, and KP are contact sensors connected by primary output leads with series oscillatory circuits, the second leads of contact sensors and series oscillatory circuits are connected to a double conductive line 2. This device is also not sufficiently reliable, since power sources and other

elements, and nodes.

The aim of the invention is to improve the reliability of the device.

The goal is achieved by the fact h (then a phase disk driver, a combined first two inputs and a third input of which is connected to the first and second outputs of the switching frequency generator, is entered into the PD, respectively. The fourth output of the phase discriminator and the second output of the frequency switch generator are connected to two wire ls connection

About the phase discriminator is connected to the control input of the indicator.

Claims (2)

The drawing is a block diagram of the device. It contains a clock pulse generator 1, a distributor 2, a switching frequency generator 3, an indicator 4, a phase discriminator 5, a two-wire communication line b, coptak sensors 7 — a c-follower and oscillatory circuits 8–8. The principle of operation of the device telenalisanvi is based on the combination of operations call KP and obtain information about his sotsogvgai. The clock pulse generator 1 gives pulses to the distributor 2, which simultaneously switches the frequencies of the generator 3 and the corresponding pulses -. indicator cells 4. Phase discriminator 5 matches the current of the generator 3 and the current of the communication link, and in the case of a closed contact; The telesity probe (TF) sensor of the CCR, when its resistance at the resonant frequencies is minimal, gives a control signal for igniting the corresponding cell of the indicator board. The inclusion of the definitive cells of the indicator panel sirnaliziruet that the contact of the TC of this KP is closed, and the current in the post-resonant resonant circuit iviaKCJfr is small. The special feature of the operation of the phase disc minator is that it reacts only to the resonance current of the serial Koirrypa and does not react to the capacitive and inductive currents of all the other KPs included in the datyhh moment. In the case of an open contact of the TC sensor, the phase discriminator does not produce a signal. The use of a series oscillatory circuit as a selector and the use of a phase discriminator as a current meter made it possible to simplify the construction of the device as a whole. In Rweil Tata Szhena cost and increased its reliability. Formula of the Invention The frequency signal of a television signaling device containing a generator of trans pulses at the control room, the output of which is connected to the input of the determiner, the outputs of the distributor are connected to the inputs of the switch perekl1o. frequencies with an indicator, at monitored points - contact sensors connected to the first terminals with successive oscillatory circuits, the second terminals contact. sensors and consecutive oscillatory circuits are connected to a two-wire communication line, so that, in order to increase reliability, a phase discriminator, the combined first two inputs and the third input of which is connected respectively, with the first and second outputs of the switching frequency generator; The fourth output of the phase discriminator and the second output of the generator of switching frequencies are connected to a two-wire Communication line and the output of the call discriminator is connected to the control input of the indicator. Sources of information taken into account in the examination 1. F. Katkov A., Kiev. Remote control, 1967, p. 277. 2. Ilyin V. A. Telecontrol and Telecontrol, M., Energie, 1969, p. 283.