SU432499A1 - DEVICE FOR MANAGING THE MULTICHANNEL MEASURING SYSTEM - Google Patents

Description

one

The device relates to the field of computer technology and can be used in automated monitoring and control systems.

Devices are known for controlling a multi-channel measuring system, comprising a register of a channel number, the outputs of which are connected to the inputs of the decoder, and a register of the number of sensors, the outputs of which are connected to the corresponding inputs of blocks of address keys of all channels.

A disadvantage of the known devices is the impossibility of simultaneous operation of the measuring apparatus in several channels. The VM program is designed so that, until the end of the measurement, a sample of another sensor in this channel cannot occur, otherwise the measurement may be corrupted. As a result, the speed of the measuring system is reduced.

The proposed device is characterized in that a start block, an OR circuit and in each channel — the first and second AND circuit, a trigger and a control key are entered in it, one input of the first AND circuit of each channel is connected to the corresponding output of the decoder, the second input is with the first output of the start-up block, and the output with the installation input at "1 flip-flop, the installation input at" About which is connected to the second output of the startup module, and the single output - with the first input of the control key and with one input of the second "And" circuit, whose output connected to the appropriate input m block

address keys and one of the inputs of the scheme

"OR, and the other entrance is the third exit

the start block, the fourth output of which is connected to the second input of the control key.

This allows a new sensor number to be obtained from the VM before the end of the previous measurement and to measure simultaneously in several channels. As a result, the speed of the device increases.

The block diagram of the device shown in the drawing.

The device contains a channel number register 1, a sensor number register 2, a decoder 3, a start block 4, triggers 5, And 6, 7 circuits, address key blocks 8, control keys 9 and OR 10 circuit.

The device works as follows. The operation of the device begins with the fact that initially the address of the sensor whose signal is to be measured arrives from the VM.

This address consists of the channel number code, which goes to channel number 1 register, and the sensor number code, which goes to sensor number 2 register. The sensor number code from the sensor number register outputs is given in parallel to the inputs of the address blocks

Keys 8 all channels. The code of the channel number with the help of the decoder 3 is converted into a signal arriving at the first input of the circuit "AND 6 of the corresponding channel. The signals at the outputs of the start-up block 4 for each channel appear in a certain sequence and repeat cyclically at intervals that are determined by the technical and data from the measuring equipment of the channels. These signals are produced alternately for all channels. The enable signal of the operation of the corresponding channel is supplied from the start-up unit 4 to the second input of the < 6 > channel after the measurements in this channel have ended. When the signals at both inputs of the circuit "AND 6" trigger 6 are transferred to one state. At the same time, a signal is removed from its unit level, which permits the passage of signals from the start-up unit 4 through the AND 7 circuit and through the control key 9. When the signal from the startup unit 4 is sent to the AND 7 circuit, the sensor number code is transferred from the sensor number register 2 through the block of address keys 8 into the hardware of this “anal. At the same time, through the scheme "OR 10, a signal" is sent to the computer "request, according to which it issues the following address. After that, the start-up unit 4 receives the necessary control signals through the public key of control 9 and the channel equipment is measured and the sensor signal is measured. Trigger 5 remains in one state until a measurement is completed on this channel (then from trigger 4 to input of trigger 5 to “O”, a reset signal is received, which sets trigger 5 to zero. If the new address is received from the VM before the end of the previous measurement contains a channel number that is different from the previous channel number, then the enable signal of this channel will come from the salvo unit 4 — to the input of the “And 6” circuit, and the signal from the startup block 4 and the input of the “7” circuit will allow to transfer a new sensor number to the channel equipment through the block of address keys 8 before the measurement in the previous channel ends. If the channel number in the new address

will be the same as in the previous address, then the transmission of the sensor number to the channel and the issuance of the signal "the request will be delayed until the measurement is completed in this channel, after what 5 from the start-up unit 4 will first receive a reset signal to the input of the trigger 5 in" O, then the enable signal of the operation of this drip to the input of the circuit "And 6 and, finally, the signal to the input of the circuit" And 7, allowing

0 transmitting the sensor number to the channel hardware. Then everything will be repeated. In this case, different sequences of the arrival of the channel number codes in the addresses are possible. If the channel numbers go in order, then the maximum speed will be realized. If the addresses of the sensors of the same channel are then followed, then the system speed is equal to the speed of one channel.

Subject invention

A device for controlling a multi-channel measuring system, containing a register of the channel number, the outputs of which are connected to the inputs of the decoder, and a register of the number of the sensor, the outputs of which are connected to the corresponding inputs of the address blocks

0 keys of all channels, different from the fact that, in order to increase the speed of the device, a startup block, an OR scheme and in each channel — the first and second AND schemes, a trigger and a control key, and one input first “And each channel is connected to the corresponding output of the decoder, the second input is connected to the first output of the start block, and the output is connected to the installation input at“ 1 trigger, the installation input at

0 "About which is connected to the second output of the start-up block, and a single output - to the first input of the control key and to one input of the second" And circuit, the output of which is connected to the corresponding input of the address key block and to one of the inputs of the "And, and another input - with the third output of the start-up unit, the fourth output is connected to the second input of the control key. N-channel TpeSoSuHue SBM