RU44006U1 - UNINTERRUPTABLE POWER SOURCE - Google Patents

Abstract

An uninterruptible power supply relates to the field of computer technology, namely to methods and devices for uninterruptible power supply of computers. The objective of the utility model is to reduce the overall dimensions, expand the functionality of the device, increase the scope, reduce the cost of the device. The problem is solved in that in an uninterruptible power supply comprising a charger, a battery, an inverter, a filter, a control device and a communication device with a computer, the communication device with a computer is designed as a keyboard simulator included in the cable break connecting the computer keyboard to the port computer (system unit) PS / 2, - the keyboard simulator gives a command to shut down the computer using sleep mode after a signal about the absence of voltage in the supply network in the time interval 0-180 s Application in the uninterruptible power supply keyboard simulator, allowed to exclude the use of additional software to correct, automatically shutdown computer when power outages (problem in power supply). The use of a keyboard simulator in the uninterruptible power supply made it possible to reduce the overall dimensions of the device (lower capacity and, accordingly, battery weight, simplifying the design of the inverter since it requires less time

Description

The utility model relates to the field of computer technology, namely to methods and devices for uninterruptible power supply of computers.

The uninterruptible power supply for the computer system unit is designed to provide uninterrupted power to the IBM / PC type computer system unit during short-term power outages in the “voltage drops” for up to 2-4 seconds, to limit impulse noise, and to put the computer into sleep mode when power outages for more than 2-4 seconds, which allows you to save all open files and applications on your computer’s hard drive with the ability to return to work after voltage recovery in the network.

There is a method of automatically shutting down computers in case of power outages (when the battery is almost empty), based on the use of APC's PowerChute program which provides safe (correct) automatic shutdown of computers (using sleep mode), with full storage of all information on the hard drive outside depending on whether the operator is at this moment in the workplace. The method consists in using a communication device with an output to a standard RS-232 port or a USB port that sends a command through the appropriate cords (DB9-DB9 RS-232 corn cable, USB) to the PowerChute program to perform an automatic correct (safe) shutdown of the computer during interruptions in mains supply. (APC Uninterruptible Power Supply User's Manual Back-UPS CS 350 UPS model)

The main disadvantages of this device are:

1. Excessive weight and size characteristics.

2. The difficulty in setting up and installing the device for automatic operation for the average user.

3. Automatic shutdown using sleep mode, only in the event of a dangerous discharge of the backup battery.

4. The presence of additional software products.

5. High cost of uninterruptible power supply.

Closest to the proposed is Uninterruptible Power Supply Company ARS Back-UPS CS 350 (with cable for communication with a workstation, computer via USB port). The diagram of this device is shown in Fig. 1.

Its main units are a charger 1a, a battery 2a, an inverter 3a, a control device 4a and a communication device with a computer 5a (implemented on the basis of a standard serial port or USB port, depending on the delivery), a filter 6a. (APC Uninterruptible Power Supply User's Manual Back-UPS CS 350 UPS model)

The device operates as follows: in the presence of input voltage, the switch of the control device 4a is in position I and the input voltage is transmitted to the output. At the same time, e / m filters 6a are installed at the output, protecting the computer (workstation) from power surges and transients. At the same time, using the charger 1a, the batteries 2a are charged. Inverter Over is off or idling. If the input voltage disappears or decreases significantly, the control device 4a is transferred to the U position, and the voltage from the inverter 3a, which consumes the energy stored in the batteries 2a, is output. When the battery discharge drops below a critical value, the communication device with computer 5a sends commands (via the computer serial port or USB port) to the workstation (computer) and a special PowerChute power management program installed on the computer (workstation), receiving commands

puts the computer into sleep mode, ensuring automatic file saving and system shutdown, without operator intervention.

The main disadvantages of this device are:

- Excessive weight and size characteristics.

- Difficulty in setting up and installing the device for automatic operation for the average user.

- Automatic shutdown using sleep mode, only in the event of a dangerous discharge of the backup battery.

- Availability of additional software products.

- High cost of uninterruptible power supply.

The objective of the utility model is to reduce weight and size characteristics, expand the functionality of the device, increase the scope, reduce the cost of the device.

The problem is solved in that in an uninterruptible power supply comprising a charger, a battery, an inverter, a filter, a control device and a communication device with a computer, the communication device with a computer is designed as a keyboard simulator included in the cable break connecting the computer keyboard to the port computer (system unit) PS / 2.

- the keyboard simulator gives a command to shut down the computer using sleep mode after a signal about the absence of voltage in the supply network in the time interval 0-180 sec;

The analysis of the prior art by the applicant, including searches by patents and scientific and technical sources of information, and the identification of sources containing information about analogues of the claimed utility model,

allowed to establish that the applicant did not find a source characterized by signs of the proposed utility model.

Defined from the list of identified analogues and prototype, as the closest in combination to the technical result perceived by the applicant, the distinguishing features in the claimed utility model are set forth in the utility model formula.

Therefore, the claimed utility model meets the criterion of "novelty."

The utility model is illustrated by drawings, where:

In fig. 1 shows a diagram of a prototype.

In fig. 2 shows a diagram of the inventive device.

The inventive utility model consists (Fig. 2) of a charger 1, a battery 2, an inverter 3, a control device 4, a keyboard simulator 5 (included in the cable break connecting the keyboard to the ps / 2 computer port), filter 6.

Preparing an uninterruptible power supply for operation.

The uninterruptible power supply is connected to a personal computer instead of the usual 220 V power cord, as well as to the “gap” of the cable connecting the keyboard to the PS / 2 port. In the power settings of the operating system, permission to use sleep mode is set. The device is ready to go.

The uninterruptible power supply operates as follows in the presence of input voltage, the switch of the control device 4 is in position I, and the input voltage is transmitted to the output. At the same time, e / m filters 6 are installed at the output, protecting the computer (workstation) from power surges and transients. In the initial state, the keyboard simulator 5 is connected to the cable break of the connecting keyboard

computer and the PS / 2 port does not have any effect on its operation (the simulator is transparent to all signals coming from the keyboard).

If the mains voltage fails or significantly decreases (interruptions in the supply network), the control unit 4 switches to position 11 and starts the inverter 3 which consumes the energy stored in the batteries 2, thereby ensuring uninterrupted power supply to the computer. The control device 4 gives a command in the time interval 0-180 sec to start the keyboard simulator 5. After the signal from the control device 4, the keyboard simulator 5 analyzes the status of the computer keyboard. To ensure the correct completion of the procedure for exchanging the keyboard and the computer, the keyboard simulator 5 expects a pause in the keyboard, then disconnects the keyboard from the computer. Again, the keyboard simulator 5 analyzes the status of the computer keyboard to make sure that the computer does not send any commands to the keyboard and is ready to receive information from it. After that, the keyboard simulator 5 sends to the PS / 2 port a sequence of bytes programmed in its memory, simulating the operation of the keyboard by sending a command to put the computer into sleep mode. After the end of the sending, a pause is held, then the keyboard is reconnected to the computer and the device returns to its original state. A computer equipped with an operating system, taking a sequence of commands from a keyboard simulator puts the computer into sleep mode, while all programs and files that the operator is currently working with are saved from the computer's RAM to the hard drive, after the computer enters sleep mode, the computer’s power supply is turned off and the circuit control stops the inverter. Subsequently, when voltage appears in the supply network, the operator turns on the computer and continues to work on the topic with open programs and files with which the computer went into sleep mode.

A user working on a personal computer opens (runs) various programs for printing, drawing, playing games, watching films, listening to music, etc. for work and entertainment. Upon unexpected shutdown

electricity for a short time from 0 to 100 seconds. (depending on the settings of the device), the control circuit starts up uninterruptible power supply, and the computer system unit is powered by a battery. With an increase in the time of interruptions in electricity, the keyboard simulator additionally triggers which instructs the operating system to put the computer into sleep mode. Upon completion of the transition of the computer to sleep mode, the computer is de-energized and can stand in this state for any length of time. After the appearance of voltage in the mains, the user turns on the computer and the operating system restores the state of the computer at the time it goes into sleep mode, the same files are opened, the printing and drawing programs that the user worked with continue to play the same music, go film. The use of uninterruptible power supply relieves the computer user to manually “shut down” applications and other running programs during an emergency emergency shutdown of the computer due to a power failure.

During operation, the uninterruptible power supply is constantly connected to the network and recharges the battery. When the battery is fully charged, the charger stops charging and only maintains voltage at the battery terminals within 14.5-15.0 V, compensating for its self-discharge.

The use of a keyboard simulator in an uninterruptible power supply made it possible to exclude the use of additional software products for the correct, automatic shutdown of a computer in case of power outages (problems in power supply).

The use of a keyboard simulator in an uninterruptible power supply made it possible to reduce the overall dimensions of the device (lower capacity and, accordingly, battery weight, simplifying the design of the inverter since it requires less time)

Claims (2)

1. An uninterruptible power supply comprising a charger, a battery, an inverter, a filter, a control device, and a computer communication device, characterized in that the computer communication device is designed as a keyboard simulator included in a cable break connecting a computer keyboard to a computer port (system unit) ) PS / 2. 2. The source according to claim 1, characterized in that the keyboard simulator gives a command to shut down the computer using sleep mode after a signal about the absence of voltage in the supply network in a time interval of 0-180 sec.