RU2024923C1 - Static storage device - Google Patents

Abstract

FIELD: information measuring technology. SUBSTANCE: device has address ports 2, data ports 3, control ports 4,8, address decoders 7, power supply lines 10,11, storage unit 5, groups 12,13 of switches. EFFECT: enhanced reliability in keeping information in emergency conditions. 1 dwg

Description

 The invention relates to information-measuring equipment, and more particularly to storage devices for measuring information that stores it in the event of an accident.

 Known information storage devices on magnetic tape (type LPM) (for example, ed. St. N 788961).

 A disadvantage of the known information storage devices is the low reliability associated with the presence of moving and wearing parts. This drawback is deprived of solid-state information storage devices containing a computer bus connected through a data port to a data bus of a storage device, through an address port to a bus address of a memory device and to a decoder whose outputs are connected to the resolution inputs of memory segments, and through a port control - with the control inputs of the storage device, the power bus of the storage device, a protective casing, while the control port contains a control decoder, cat outputs They are connected to the inputs of the waiting multivibrators.

 In these drives, non-volatile, electrically erasable storage devices through the corresponding ports receive the address, data and control signals for recording or erasing information, as well as for reading it into the computer bus from mechanical damage and high temperature.

 The disadvantages of this drive, taken as a prototype, is the low safety of information in emergency conditions when exposed to high temperature, for example, during a fire. This is because it is impossible to greatly increase the heat-shielding properties of the casing, since the thermal energy released by the storage device during normal recording of information by the drive will overheat the storage device from the inside and disrupt its normal operation.

 The aim of the invention is to increase the reliability and increase the safety of information in emergency conditions of elevated temperature.

 The goal is achieved due to the fact that the static storage device containing the bus of the electronic computer connected via the data port to the data bus of the storage device, through the address port to the address bus of the memory block and a decoder, the outputs of which are connected to the resolution inputs of the segments of the memory block, and through the control port with the control inputs of the memory block, the power supply bus of the memory block, the protective casing is equipped with an additional port, trigger, power decoders and key circuits; two outputs of the additional port are connected to the R and S inputs of the trigger, the output of which is connected to the resolution inputs of the power decoders, the address inputs of which are connected to the output of the address port, and the outputs are connected to key circuits connected between the power buses and the power inputs of the memory block segments.

 Due to this, the memory unit dissipates energy only in those periods when recording, erasing or reading information is performed, and only in the segment with which the work is performed.

 In the information storage mode, the energy does not dissipate, the contents inside the protective casing do not overheat, which makes the protective casing more heat-resistant, thereby ensuring the achievement of the purpose of the invention, namely, to increase the safety of information in emergency conditions of elevated temperature, to increase the reliability of its operation.

 The drawing shows a diagram of the proposed device.

 A solid-state storage device contains a computer bus 1, an address port 2, consisting, for example, of a decryptor and a register connected in series, a data port 3 similar to the device with an address port 2, a control port 4, consisting, for example, of a control decoder and standby multivibrators, a memory unit 5, consisting of segments 6, a decoder 7, an additional port 8, consisting, for example, of an address decoder, an RS trigger 9, power decoders 10 and 11, the number of which corresponds to the number of supply voltages of the memory unit 5, key blocks 12, 1 3, power bus 14 and 15.

 The decoder 7 is connected to the upper bits of the address of the memory block 5, formed by the address port 2, and controls the resolution inputs of the segments 6 of the memory block 5. An additional port 8 is connected to the computer bus 1 and to the R and S inputs of the trigger 9, the output of which is connected to the resolution inputs of the decoders power supply 10 and 11. The outputs of the power decoders 10 and 11 are connected to the key blocks 12, 13 connected between the respective power buses 14 and 15 and the power inputs of the segments 6 of the memory unit 5, placed in a protective casing (not shown).

 The drive works as follows.

 Information on the address of the memory unit 5 is received from the computer bus 1 to the address port 2, while the decoder 7 generates an enable signal for one of the segments 6 of the memory unit 5. The power decoders 10, 11 are prepared for operation.

 The control port 4 receives information from the computer bus 1 about the operating mode of the drive. When erasing some cells, an erase signal is generated here, which is necessary for the type of non-volatile, electrically erasable microcircuit in the memory unit 5. When recording information, a recording signal is generated, and information about the data being written is received through data port 3. When reading information in the control port 4, a read signal is generated and information from the memory unit 5 through the data port 3 enters the computer bus 1.

 Before starting to write, erase or read information, additional port 8 receives information on power-up. In this case, the trigger 9 is installed and gives a permission signal to the power decoders 10 and 11, which connect the desired segment 6 of the memory unit 5 to the power buses 14 and 15 through the corresponding key blocks 12 and 13. After writing, erasing and reading information to the additional port 8 information about power off is received, trigger 9 is reset and memory block 5 is de-energized. Due to this, heat is not generated inside the protective casing during information storage, and when writing, erasing and reading it is released only in one segment 6 of the memory unit 5. This can significantly reduce the heat generation of the memory unit 5 and thereby increase the reliability of the drive. As a result, information after an accident can be stored when exposed to a given high temperature of the fire for a longer time or for a predetermined time when exposed to a higher temperature, i.e. information safety in emergency conditions increases.

Claims (1)

 STATIC MEMORY DEVICE containing three interface blocks, the inputs of which are the address, information and first control inputs of the device, the outputs of the first interface block are connected directly to the address bus of the memory block, as well as the inputs of the first decoder, the outputs of which are connected to the address inputs of the memory block, the outputs the second and third interface units are connected to the information and control inputs of the memory unit, characterized in that, in order to increase the reliability of information storage, it is introduced The fourth interface block, the trigger, the second decoder and the key block, the input of the fourth interface block is the second control input of the device, and the outputs are connected to the inputs of the direct and inverse state of the trigger, the direct output of which is connected to the resolution input of the second decoder, the outputs of which are connected to the first inputs of the key block, the outputs of which are connected to the power supply inputs of the memory unit, and the second inputs are connected to the power buses, the address inputs of the second decoder are connected to the output of the first interface unit.