Requirements to ergonomics and technical aesthetics

 

The shape and the way the information shall be determined by its composition and purpose.

Information about the abnormal situation in the system should be displayed on the screen in a manner that attracts the attention of the staff.

General ergonomic requirements for AWM ACSEE must meet DSTU 7299: 2013 "Design and Ergonomics. Operator. The relative position of the workplace. General requirements Ergonomics"

Design solutions and the quality of their implementation shall meet the requirements of technical aesthetics.

Ergonomic solutions should provide ease of operation, maintenance and repair of equipment.

 

 

Requirements for the operation, maintenance, repair and preservation of the system components

 

In areas where the equipment is located ACSEE SS, should be provided with the operating conditions according to the requirements that are set in the operating instructions on the device and means.

Mode ACSEE SS - continuous, non-stop with periodic maintenance.

 

Maintenance ACSEE SS should be two types of:

 

· Operational Services;

· routine maintenance.

 

The main type of repair should be carried out by replacing the faulty unit with spare parts. Next repair faulty units is carried out by the personnel operating the system, or at specialized repair shops.

 

 

Requirements for the protection of information from unauthorized access

 

Protection should be the organizational and technical means of limiting access to specific users. As part of protection should be provided for software data protection, which allow:

 

· access control system operators to tasks, reports, parameters and system resources;

· control of data integrity and system configuration;

· registration and recording of operator actions.

 

It must be ensured limiting user access to tasks of manual data entry. Manual data entry must have the appropriate signs and details of the manual input operator.

 

To protect against unauthorized access must be provided:

 

· organizational solutions (limiting access of unauthorized persons to the premises, which houses the equipment ACSEE);

· physical protection (lock and seal on products, special cabinets, safes);

· programming techniques (setting passwords, placing applications and data in the write-protected memory areas), creation of groups (profiles) of users in terms of access - administration, review and manual data entry, data revisions;

· Measures to protect against changes in the information in the files of data that is stored on external media.

 

 

Requirements for the preservation of information in case of emergencies

 

There must be measures that ensure the renewal or minimize data loss due to the influence of factors that caused the emergency and hardware failures. Measures to protect and restore the information shall be provided at the level of software, as well as wearing the organizational and technical nature (to use RAID arrays on the server, backup server, "hard" copies of software and data duplication while preserving information).

As part of the system of technical means shall be provided to the external memory, which ensure the safety of the software, information files and the possibility of subsequent recovery. It shall be capable of manual or automatic backup.

Safety information should be provided by ACSEE SS under the following emergency situations:

 

· temporary power failure;

· temporary failure of cable lines and equipment data, the duration of which does not exceed the operating time in standalone mode;

· failure of individual hardware ACSEE SS.

 

In emergencies system must not give out false signals and information.

 

In the event of failure of the main power supply, computer hardware systems must go powered by uninterruptible power supply unit and perform safe shutdown in automatic or manual mode.

Resuming after failures and accidents in the system should be carried out in automatic or automatic modes.

Electricity meters in the loss of power and / or failures of communication channels should ensure the preservation of information in non-volatile memory (the primary database) for the period in the amount of pre-fault load schedule at least 45 days with the integration period of 30 minutes. In addition, electricity meters, which have digital interface must provide safety indicators at the beginning of the day, during the day, at the beginning of the month - for the month.

Programmes meter reading should include mechanisms for monitoring the completeness of the data and their reading with safety regulations.

 

 

Requirements for protection from the influence of external factors

 

Technical means ACSEE SS when activating and deactivating the switching should not create obstacles that cause a malfunction of other products that are connected to the same network as the primary power supply to the local network, besides a power supply.

The ACSEE SS should include technical measures of protection against the effects of electromagnetic obstacles is provided by laying data cables separate from cables and other purposes, the use of the screening, filtration, grounding. According to EMC elements ACSEE SS shall meet the requirements of international standards IEC 61000-4-8, IEC 61000-4-118 and others.

Protection of the network Ethernet, RS-232 lines, RS-485, Trunk telecommunications, radio links, power lines equipment Surge (interference from lightning strikes, switching of power equipment) must be provided in the construction of ACSEE SS.

When transmitting information through communication channels must be used interfaces and communications protocols that provide interference-encoding, error protection and detection.

 

 

Requirements for the standardization and unification

 

ACSEE SS should be based on existing standards, rules, regulations and other regulatory documents (industry leadership training materials, GOST 34.201-89, RD 50-34.698-90).

In the absence of purchased technical equipment with the necessary characteristics, they should be designed for individual specification for the design phase.

 

ACSEE unification should be achieved by:

 

· unification of hardware components through the use of a limited set of standardized hardware, standardized set of events computing;

· unification of the software through the use of standard programs.

 

The software must be able, without significant improvements of software add-ons, creating interaction between software systems with ACS.

 

Building ACSEE local level and its integration into the ACSEE regional level should be implemented on the basis of new international standards, namely,:

 

· ІЕС 61970 (Sim Model - Common Information Model);

· ІЕС 61968 (The main interface for the control of electrical networks, the structure of information messages for control centers);

· ІЕС 61850-7 (forming marks quality parameters);

· ІЕС 60870-6 (data transfer protocols between the control centers) as the primary protocol to communicate with RECS with LECS credentials of the current accounting period, event data and historical data.

· DLMS COSEM (communication protocol)

 

 

Power Requirements

 

For electricity meters should be organized external (backup) power supply. The power supply must be carried out using special isolating transformers for electrical isolation of power. Standby power must allow reading of electricity meters in the absence of measured voltage and current.

Electrical equipment in the closet communication server ACSEE, must be single-phase 220V AC, 50 Hz. Power consumption of equipment cabinet ACSEE media server should not exceed 1500 VA.

The housing must be connected to a protective earth circuit.

In order to ensure a reliable power supply cabinet and prevent data loss when a power failure, use an uninterruptible power supply (UPS). UPS, with the disappearance of the primary power supply should provide autonomous operation and shutdown of the server for at least 30 minutes.

Power ARM should be a single-phase AC voltage of 220V, 50 Hz.