Device to control on-off power

 

(57) Abstract:

The invention relates to computing and is designed for automatic switching on and off power supply to the external device (data terminal equipment) in a computer network connected to the interface with the radial serial communication. The aim of the invention is to increase functionality while reducing hardware costs by providing automatic switching power supply on the fact the beginning-the end of the communication devices transmitting data to the terminal equipment data. The goal is achieved by introducing into the device to control the on-off power supply optional clock generator 7, a timer 8, the counter 2 of the code. 5 Il.

The invention relates to computing and is designed for automatic switching on and off power supply external devices - WU (data terminal equipment - DTE) data channels connected to the interface with the radial serial communication.

A device for controlling electrical connection containing the address decoder, the two groups="ptx2">

The disadvantage of this device is the hardware centralized on / off power VU.

A device for controlling on-off of the power supply WOO in a computing system containing a Central control unit power supply trigger input which is the input of the and gate entrance code addresses WU Central control unit power and unit address generation are combined and entry Gate code addresses" device input "End WU" combined with the respective input block selection mode and an input End WU" device input "End exchange WOO" which is connected to the input of the block select mode, the starting WU which are combined with the respective input of the Central control unit power supply and is starting WU devices, input code, address and service request WU which are connected to respective inputs of the block address generation, the output of which is connected to the first inputs of the blocks of the sample WOO channels, the second inputs of which are connected to the first output of the block selection mode, the second and third outputs of which are connected respectively to promoteam, the fourth output is connected to the second input of the Central control unit power supply, a third input which is combined with the first input of the block select mode and connected to the first outputs of the peripheral control unit power supply channel, the second outputs are connected to the fourth input of the Central control unit power supply, the first and second outputs of which are connected respectively to the first and second inputs of the peripheral control units power supply channels, the third and fourth inputs of which are respectively inputs shutdown and power-WU devices, his fifth and sixth inputs connected respectively to the first and second outputs of the switching unit supply channels, the inputs of which are connected respectively to the third and fourth outputs of the peripheral control unit power supply channels, the seventh input of which is connected to the output of the fetch block WU channels, while the third output of the Central control unit power supply connected to the input of block mode selection [2].

The disadvantage of this device is the redundancy of the equipment due to the input interface I / o additional signals for switching on and off power what ukrashenie hardware costs by providing automatic switching power supply on the fact the beginning-the end of the communication data transmission equipment (ADF) LTD.

The aim is achieved in that in the device to control the on-off power supply, containing the node pair with the interface, the control unit, the switching unit network, the mode switch and the node initial setup, the output of which is connected to the reset input of the control unit, the first output of which is connected to the input of the switching network, entered the clock, timer and counter, the output of which is connected to the input of the installation of the control unit, the second output of which is connected to the reset input of the counter code, a counting input connected to the output node pair with the interface, an input connected to the input of the data transmission device, and the output of the clock generator is connected to a counter input clock and the first clock input of the control unit, the third output of which is connected to the reset input of the timer, the output of which is connected to a second clock input of the control unit, the output unit switching network connected to the first input of the mode switch, a second input connected to the input of the power supply device, the output device is connected to the outputs of the mode switch.

In Fig. 1 presents a diagram of the device: Fig.2 is a block circuit panel is e diagram of the control unit.

The device comprises (Fig.1) connected in series node 1 mates with the interface, an input connected to the input of the data transmission device, the counter 2 of the code, the unit 3 control unit 4 switching network, the switch 5 modes of operation, the output of which is connected to the output node 6 initial setup, the output connected to the reset input of the control unit, a clock generator 7 connected to the counting input of the timer 8 and the first clock input of the control unit. The reset input of the timer is connected to the third output of the control unit, the second clock input of which is connected to the output of the timer, the input 9 of the power supply network connected to the second input of the mode switch.

The control unit 3 (Fig. 2) contains a trigger 10 include, first 11, second 12 and third 13 input elements OR the first 14 and second 15 elements and NOT the input element OR NOT 16 open collector.

Unit 4 switching network (Fig.3) contains a triac optocoupler 17, 18, 19, 20, symmetric thyristor 21, the first 22 and second 23 resistors.

Switch 5 modes (Fig.4) contains the toggle switch 24, the switching device in the STANDBY modes or WORK, the first 25 and second 26 fuses that protect against Korotkov the IU (Fig.5) operation of the control unit taken following abbreviations: ARTICLE code - counter code; TCD - line data from the APD; TON. BCS - trigger enable block switching network; MEM.T - reset timer; MEM. IC - reset counter code; F - clock frequency generator; THE timeout.

In the OPERATION of the device disconnects from the network and the power supply voltage is applied directly on the outlet LTD.

In STANDBY mode the device operates as follows. After you put the toggle switch 24 from WORK in the position of the STANDBY power supply is switched to a source 27 of the power device, the indicator 29 mode and all the elements of the device, the power supply to +5V. After the appearance of the power supply node 6 initial setup produces a positive RESET pulse duration of about 20 MS received at the first input of the OR element 11 of the control unit 3, and then from the output of the OR element 11 is supplied to the reset input of the trigger 10 and the first input of the OR element 12, the output of which a reset pulse is supplied to the reset input of the counter code 2. With zero output of the trigger 10, the reset signal is supplied to the first input of the third element OR 13, the input of which is fed to the reset input of the timer 8, blocking it. Thus, the device is installed in the original (initial) CD counter 2 reset code signals of the clock generator 7, at the input of the first element 14, the output of which they are coming to the second input of the OR element 12 and further to the reset input of counter 2 code. Data from APD on line TCD, passing through node 1 mates with the interface, proceed to the counting input of counter 2 code. If the number of ones in the byte is equal to or more than four, then the output of counter 2 code a signal Lips. TON received at a single input trigger 10 of the enable section of the switching network and to the second input of the third element OR 13, the output of which is input to the reset timer 8 receives the first reset signal and then the unblocking of the timer, i.e., that point at the counting input of the timer allowed the signal F with a period of 400 MS and a duration of 1 μs, generated by a clock generator 7. The low level signal from the zero output of the trigger 10 is supplied not only to the first input of the third element OR 13, but also on the input of the second element 15, from which it is fed to the input of the element OR NOT 16 open collector, thereby generating a signal on.BCS at the input of the switching unit network engaged in connection outlets Ltd. to the mains. Thus, up until the line TCD continues to receive data counters the data line TCD timer 8 starts to count down, set via dip switch and specifying the period during which the device waits for the continuation of data - 3, 6, 13 or 27 minutes when the preset time, the timer 8 produces THE signal coming through the elements OR 11 and 12 to the zero inputs of the trigger 10 enable BCS and counter 2 code, respectively, thereby removing the signal on.BCS with unit switching network and disabling outlet OOD from the mains.

Thus, the proposed device to control on-off power supply allows you to extend the functionality and, therefore, the scope of it at a lower hardware cost compared to the prototype. The introduction of such generator, timer and counter code allows to provide automatic remote turn on-off the power supply to the fact the beginning-the end of the exchange with APD LTD.

DEVICE TO CONTROL on-OFF POWER supply, containing the node pair with the interface, the control unit, the switching unit network, the mode switch and the node initial setup, the output of which is connected to the reset input of the control unit, the first output of which is connected to the input of the block is dine with the input set of the control unit, the second output of which is connected to the reset input of the counter code, a counting input connected to the output node pair with the interface, an input connected to the input of the data transmission device, the output of the clock generator is connected to a counter input clock and the first clock input of the control unit, the third output of which is connected to the reset input of the timer, the output of which is connected to a second clock input of the control unit, the output unit switching network connected to the first input of the mode switch, a second input connected to the input of the power supply device, the output device is connected to the outputs of the mode switch.

 

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