RU10938U1 - DEVICE FOR SWITCHING THE POWER SUPPLY OF THE ELECTRONIC SYSTEM PROTECTED FROM AN EXTERNAL USERS - Google Patents

Abstract

1. A device for switching the power supply circuit of an electronic system with protection from unauthorized users, comprising a switch for its power supply circuit located in the housing of the electronic system, an associated actuator and a key, characterized in that it further comprises a microprocessor connected to an autonomous power source, a memory unit , a control panel, an indication and alarm unit, an unauthorized access sensor to a power circuit switch, a timer, and also a code reader information from a key that is made electronic, while the first, second, third and fourth inputs of the microprocessor are connected respectively to the outputs of the control panel, the output of the unauthorized access sensor to the power circuit switch, the output of means for reading code information from the key and the timer output, input / the microprocessor output is connected to the input / output of the memory unit, and the first and second outputs of the microprocessor are connected respectively to the input of the actuator and the input of the display and alarm unit 2. The device according to claim 1, characterized in that the sensor of unauthorized access to the power circuit switch is made in the form of a volume sensor of the electronic system.

Description

The utility model relates to switching technology and can be used in electronic systems for various purposes, where access to the system is required to be differentiated, as well as protection of electronic equipment located in the system enclosure.

A device is known from the prior art for switching the power supply circuit of an electronic system with protection from unauthorized users (SP-0281106-31, 1994), comprising a switch for its power supply circuit located in the housing of the electronic system, the control input of which is connected to a button located randomly on keyboard electronic system.

The main disadvantage of the known device lies in the fact that it is characterized by a low degree of protection against access to the system by unauthorized users, since the control button for the switch of the power supply circuit of the electronic system can be easily determined by simply busting all the buttons on the keyboard. In addition, the well-known device 1 has a limited area of use - only for electronic systems with an keyboard.

There is also known a device for switching the power supply circuit of an electronic system with protection from unauthorized users (ЗР-0164564-В1, 1969), taken as a prototype and containing a power circuit switch located in the electronic system housing associated with an actuator controlled by a mechanical key.

The disadvantage of this device is the low degree of protection against unauthorized access to the electronic system of unauthorized users, because, firstly, a mechanical key can be faked or use a master key, and secondly, unauthorized access to the electronic system is possible by external shunting of the contacts of the power switch as a result of unauthorized penetration into the internal volume of the housing of the electronic system,

The utility model is aimed at solving the technical problem of improving the reliability of protection of a device from unauthorized users by performing an electronic key, as well as by using means for signaling and fixing the time of unauthorized entry into the internal volume of the electronic system enclosure.

The problem is solved in that the device for switching the power supply circuit of the electronic system with protection from unauthorized users, containing its electronic circuit switch located in the housing of the electronic system, the associated actuator and key, according to the pose model, additionally contains connected to an autonomous source power supply, microprocessor, memory unit, remote

control unit INDICVE AND and alarm, unauthorized access sensor to the power circuit switch, timer, and also means for reading code information from a key that is electronic, with the first, second, third and fourth inputs of the microprocessor connected respectively to the output of the control panel, the output of the sensor of unauthorized access to the switch of the power supply circuit, the output of means for reading the code information from the key and the output of the timer, the input / output of the microprocessor is connected to the input / the output of the memory unit, and the first and second outputs of the processor are connected respectively to the input of the actuator and the input of the display and signaling unit.

It is advisable that D8. The sensor of unauthorized access to the switch of the power supply circuit is made in the form of a volume sensor of the electronic system.

This embodiment of a device for switching the power supply circuit of an electronic system with protection from unauthorized users provides increased reliability of protecting the device from unauthorized users since it is practically impossible to fake an electronic key, and unauthorized entry into the electronic system will not only trigger an alarm, but will also be recorded in the memory unit.

3 further, the utility model is illustrated in the drawing and description thereto.

The drawing shows a block diagram of a device for switching the power supply circuit of an electronic system with protection from unauthorized users.

- 3 - 4 memory unit 2, control panel 3, means 4 for reading code information (for example, a reader) from an electronic key (not shown), unauthorized access sensor 5 to the switch b of the power circuit of the electronic device (not shown), actuator 7, block 8 indication and alarm and timer 9.

The first input 1: microprocessor 1 is connected to the output of the control panel S, the second input of microprocessor 1 is connected to the output of the sensor 5, the third input of microprocessor 1 is connected to the output of means 4 for reading code information from the electronic key, and the fourth input is connected to the output of timer 9. Input / output of microprocessor 1 is connected to the input / output of memory unit 2. The first output of the microprocessor 1 is connected to the control input of the actuator 7 connected to the switch b of the power circuit of the electronic device, while the input elements 10 of the switch b are connected to the corresponding busbars of the power supply network, and the output elements 11 of the switch b are connected, for example, to the power supply unit of the electronic system . The second output of the microprocessor 1 is connected to the input of the block 6 indication and alarm. The device is powered by an autonomous power source

As an electronic system, for example, various computing devices, in particular the system unit of a personal computer, can be used.

A device for switching the power supply circuit of an electronic system with protection from unauthorized users works as follows. are placed inside the housing of the corresponding electronic sCTeiviij. Means 4 for reading the code information and from the electronic key (for example, a reader) is fixed on the front control panel of the electronic system or on its rear panel so that it is accessible. The electronic key registered in this device is pressed against the means 4 for reading the code information. The code and synchronization signals read from the key from the output of the means 4 go to the third input of the microprocessor 1, where the read code is compared with the code} hanging in the memory unit 2, If in the process of comparing the codes all the digits are respectively equal, then at the first output of the microprocessor 1, a signal is generated that arrives at the control input of the actuator 7. As a result of the actuation of the actuator 7, the corresponding contacts of the switch bis its output elements are closed. for example, to the power supply unit of the electronic system. To turn off the power to the system, you must press the key to the tool 4 again.

2 if at least one of the compared bits in the code comparison process doesn’t correspond to the memory in the E block of the microprocessor 1 input / output. Signals are generated about an attempt to access using an unwritten key, as well as about the time of unauthorized access, BTA information is entered in the corresponding block cells 2 memories. At the same time, a signal is generated at the second output of microprocessor 1 and is fed to the input of display and signaling unit 8.

- 5 any power supply circuit of the electronic system (for example, 1,1per, by removing the housing from the electronic system), the sensor 5 is activated and the signal from its output goes to the second input of microprocessor 1. 3 as a result, signals about unauthorized entry into the input / output of microprocessor 1 | internal volume of the electronic system and penetration time. This information is also recorded in the memory unit 2. At the same time, a signal is generated at the second output of microprocessor 1, which arrives at the indication and signaling unit 6.

As the sensor 5, an acoustic or photoelectric volume sensor can be used, and the indication and signaling unit 8 can include means of light and / or cyro-sign indication, as well as acoustic or any other signaling.

Thus, the use of the proposed device allows you to set the number and time of each attempt of unauthorized access to the means 4 and / or switch b. To do this, press the key prescribed in this device to the tool 4. Then, access to the control panel 3 is made. By the command received at the first input of microprocessor 1 from the control panel 3, information is output from the memory block 2 about all unauthorized access to the indication and signaling unit 6.

Using the remote control 3 is also the manufacture of the Meter key, as well as the registration of the required number of electronic keys.

- b T

Claims (2)

1. A device for switching the power supply circuit of an electronic system with protection from unauthorized users, comprising a switch for its power supply circuit located in the housing of the electronic system, an associated actuator and a key, characterized in that it further comprises a microprocessor connected to an autonomous power source, a memory unit , a control panel, an indication and alarm unit, an unauthorized access sensor to a power circuit switch, a timer, and also a code reader information from a key that is made electronic, while the first, second, third and fourth inputs of the microprocessor are connected respectively to the outputs of the control panel, the output of the unauthorized access sensor to the power circuit switch, the output of means for reading code information from the key and the timer output, input / the microprocessor output is connected to the input / output of the memory unit, and the first and second outputs of the microprocessor are connected respectively to the input of the actuator and the input of the display and alarm unit nation. 2. The device according to claim 1, characterized in that the sensor of unauthorized access to the power circuit switch is made in the form of a volume sensor of the electronic system.