SU1649554A1 - Multichannel device to input digital sensor data into computer - Google Patents

Abstract

The invention relates to computing and can be used for collecting, preprocessing and exchanging information in I / O channels. The purpose of the invention is to reduce hardware costs. The goal is achieved by introducing into a device containing a control channel, including an exchange control node, a group of input registers, an OR element, a clock generator, a group of processing channels consisting of exchange control nodes and data registers, an input and output decoupling node, control of the data register and the fixed memory node, and in each processing channel, the permanent memory node. 2 Il. (Ls

Description

The invention relates to computing and can be used in information gathering systems.

The purpose of the invention is to reduce the hardware cost of the device.

Fig. 1 shows a block diagram of the device} in Fig. 2, a circuit for switching on the BIS 1820BE1 as an exchange control node.

The device (Fig. 1) contains a control channel 1 consisting of a constant memory node 2, an exchange control node 3 and a data register 4, an input and output node 5 and 6 decoupling, an OR-7 element, processing channels 8 containing Also, nodes 2 and 3 and register 4, and generator 9 of the clock pulse ELIMINATING node 5 of the isolation form the optocoupler 10 and the element NOT 11. The output node 6 of the isolation includes the element OR 12, the optocoupler 13 and the limiting resistor 14. In FIG. also a group of input registers 15, an input 16 of the device for connection to the information output of a computer, internal communication device 17-28, the output device 29 for connection to a computer and the group 30 of inputs for coupling to outputs of discrete sensors.

The device works in the following way.

The launch of the device is carried out by applying to the input 16 of the computer the Starting operation code. By this code node 3

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Channel 1 polls consecutively nodes 3 of channel 8, issuing a request containing a code for the channel number. The node 3, which has information for transmission to the computer, sends to the line 22 a busy signal (i.e., command processing) via the OR element 7.

After the busy signal is issued, the node 3 sends data to the output node of the 6 junction and then to the output 29. After the data output is completed, the node 3 of channel 8 removes the busy signal, and the node 3 of the control channel 1 starts polling other channels. After exchanging data and removing the busy signal, node 3 of channel 8 outputs a reset signal to register 15, which continues to receive signals from sensors through inputs 30.

Channels 1 and 8 are microprocessor-based automata whose nodes 2 of the permanent memory contain the program of the channel, the commands and constants of this program are read into register 4 and go to node 3, executed, for example, on BIS 1820BE1.

Claims (1)

Invention Formula A multi-channel device for inputting information from discrete sensors into a computer, comprising a control channel including a control node, a processing channel group, a clock generator, an OR element and a group of input registers, the group of information inputs of each group input register for connection to the outputs of the corresponding group of sensors, and the reset input is connected to the first synchronizing output of the corresponding processing channel, the clock input and the resolution output of which keys respectively to the output of the clock output and control channel, a synchronization input connected to the output of the OR gate, each Ka cash register comprises a data processing, data input connected to data input-output control unit exchange, characterized in that, in order 50 five 0 0 five five 0 reduce hardware costs of the device, input and output junctions are entered into it, a fixed memory node is inserted into each processing channel, and a data register and a fixed memory node are entered into the control channel, the clock generator output is connected to the clock input of the channel control, the information input of which is connected to the output of the output node of the isolation, whose input is the input of the device for connection to the information output of the computer, the group of outputs of each register of the group input is connected to the info group The secondary inputs of the corresponding processing channel of the group, the second synchronization and information outputs of the processing channels of the group are connected respectively to the group of inputs of the OR element and the input of the output junction node whose output is the output of the device for connecting to the information input of the computer, and each processing channel has address addresses of the node the fixed memory is connected to the first information output of the exchange control node and the output of the data register, and the output of the fixed memory node is connected to the information at the input-output of the exchange control node, the second information output, the clock input, the interrupt input, the third and fourth information outputs and the group of information inputs of the exchange control node are respectively the information output, the clock input, the request input, the second and first synchronization outputs and the information group the inputs of the processing channel of the group, and in the control channel the information input of the data register is connected to the information input-output of the exchange control node and the output of the constant node the memory whose address inputs are connected to the output of the data register and the first information output of the exchange control node, the clock input, the information input, the interrogation input and the second information output of which are the clock, information and synchronization inputs and the output of the control channel, 30g Fig-i