SU902325A1 - Device for interrogation of information sensors - Google Patents

Description

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The invention relates to telemetry devices and can be used when interrogating telemetry sensors with a variable interrogation frequency, with operational processing of telemetry information taken from them.

A device for polling information sensors is known, which contains a clock pulse generator, the output of which is connected to an input for recording information processing time and a switching element. Switching elements to which control inputs are connected to the outputs of corresponding information sensors p 3 "

However, the known device for polling information sensors has a large amount of equipment and, moreover, in it, each time recording unit requires an individual Processing Time selection scheme.

The purpose of the invention is to simplify the device by reducing the number of individual units for recording information processing time.

This goal is achieved by the fact that a device for polling information sensors, containing a clock pulse generator, the output of which is connected to the input of the information processing time metering unit, and AND switching elements, to the control inputs of which are connected to the outputs of the corresponding information sensors, a memory register is entered, an adder, a comparison unit, a pulse shaper, an OR element, a program matrix, and a state counter, while the outputs of the information processing time meter via the memory register are connected to one of the inputs of the adder, the outputs of which are connected to one of the inputs of the comparator unit, to the other inputs of which the outputs of the information processing time metering unit are connected, and the output of the comparator unit is connected to one of the inputs of the OR element, which is combined with the corresponding meter input states, the setup input of which is combined with another input of the OR element, the output of which is connected to the control input of the memory register, and the outputs of the state counter are connected respectively to the other inputs A commutating elements and program matrix to the inputs, the outputs of which are connected to the other inputs of the adder. The drawing shows the structural electrical circuit of the proposed device for interrogating information sensors. The device contains a clock pulse generator 1, an information processing time metering unit 2, a memory register 3, an adder 4, a comparison block 5, a program matrix 6, a state counter 7, switching elements 8, information sensors 9, a pulse former 10, the element OR 11, a common bar 12 connection. The device works as follows. From the generator of 1 clock pulses, the temporal pulses arrive at block 2 of the recording of information processing time, which operates continuously. According to the initial setup signal, the 7 state counter is set to the first state and its outputs through the switching element 8, which decoder 7 the counter state 7, connects the first information sensor 9 to the common communication bus 12. 11 is issued with permission to write to the memory register 3 states of the block 2, which records the time of information processing. The outputs of the memory register 3 are connected to the inputs of the adder 4, to the second inputs of which the code of the program matrix 6 is supplied, which determines the time during which the information sensor 9 should be connected to the common communication bus 12. Since register 4 is in memory

If the state of the information processing time block 2 is recorded, it corresponds to the moment of connecting the information sensor 9 to the common communication bus 12, then the output of the adder 4 receives a code corresponding to the moment the information sensor 9 is disconnected from the common communication bus 12. 9

Claims (1)

1. USSR author's certificate No. 530479, cl. H 04 G 9/14, 1976 (prototype).