CN201464840U

CN201464840U - Controller for equipment cabinet

Info

Publication number: CN201464840U
Application number: CN2009200773146U
Authority: CN
Inventors: 范林娟; 程艳军; 陈平; 赵海峰; 洪佳威
Original assignee: Shanghai Hydro Intelligent Science & Technology Co Ltd; HENGZHUN SMART SCIENCE-TECHNOLOGY Co Ltd SHANGHAI
Current assignee: SHANGHAI ANJI INTELLIGENT TECHNOLOGY CO., LTD.
Priority date: 2009-06-26
Filing date: 2009-06-26
Publication date: 2010-05-12
Anticipated expiration: 2019-06-26

Abstract

The utility model discloses a radio frequency identification controller in the positioning management of a server of an equipment cabinet in a machine room. The controller for the equipment cabinet comprises a DC-DC power module, a microcontroller module, a reader module and a plurality of IO extension modules, wherein the DC-DC power module supplies power to the microcontroller module, the reader module and the plurality of IO extension modules; and the microcontroller module is connected with the reader module and the plurality of IO extension modules through a bus respectively. The controller for the equipment cabinet scans the equipment cabinet at a certain interval, corresponds the identified electronic tag ID numbers to the antenna numbers, and then transmits the numbers to a background management system; after receiving the data, the middleware software of the background management system analyzes and processes the data information, and then writes the data information into an associated system data base; and the query software of the background management system achieves the functions, such as daily equipment condition query, information statistics, reports generation, and the like.

Description

A kind of rack controller

Technical field:

The utility model relates to the radio RF recognition technology field, the radio frequency identification controller in particularly a kind of machine room rack server orientation management.

Background technology:

RFID is the abbreviation of Radio-Frequency Identification, i.e. radio frequency identification.The RFID radio-frequency (RF) identification is a kind of contactless automatic identification technology, and it is by the automatic recognition objective object of radiofrequency signal and obtain related data, and identification work need not manual intervention, can work in various rugged surroundings.The RFID technology can be discerned high-speed moving object and can discern a plurality of labels simultaneously, and is swift and convenient to operate.

The composition of rfid system is made up of label, antenna, read write line, data transmission middleware and management system etc. usually:

Label (Tag): be made up of coupling element and chip, each label has unique electronic code, attached to identifying destination object on the object.

Reader (Reader): read the equipment of (can also write sometimes) label information, can be designed to hand-held or fixed;

Antenna (Antenna): between label and reader, transmit radiofrequency signal.

Data transmission middleware and management system: middleware is the data that reader collects to be handled according to operation flow send to background system appointed positions (as database); The management system technology realizes friendly system management interface and related data management function according to customer requirement custom-built system management software.

The groundwork flow process of rfid system: reader produces induction current by the radiofrequency signal of emitting antenna transmission certain frequency when radio-frequency card enters the emitting antenna perform region, radio-frequency card obtains energy and is activated; Radio-frequency card sends information such as self coding by blocking built-in transmitting antenna; System's receiving antenna receives the carrier signal of sending from radio-frequency card, is sent to reader through the antenna adjustments device, and reader carries out the demodulation sign indicating number to the signal that receives and delivers to the backstage main system then and carry out relevant treatment; Main system is judged the legitimacy of this card according to logical operation, makes corresponding processing and control at different settings, sends the action of command signal control executing mechanism.

The standard of radio-frequency card:

At present, can ISO10536, ISO14443, ISO15693 and ISO18000 be arranged for several standards that radio-frequency card uses.Using maximum is ISO14443 and ISO15693, and these two standards all are made up of physical characteristics, radio-frequency power and signaling interface, initialization and anticollision and host-host protocol four parts.

According to different modes, radio-frequency card has following several classification:

1. be divided into active card and passive card by power supply mode.Active being meant has battery that power supply is provided in the card, its operating distance is far away, but the life-span is limited, volume is big, cost is high, and is not suitable for working under rugged surroundings; No battery in the passive card, it utilizes the wave beam power supply technique that the radio-frequency (RF) energy that receives is converted into direct supply for blocking interior circuit supply, and the active relatively card of its operating distance is short, but the life-span is long and less demanding to working environment.

2. being divided into low frequency radio frequency card, high-frequency radio frequency card and super high frequency radio frequency card by carrier frequency. the low frequency radio frequency card mainly contains two kinds of 125kHz and 134.2kHz, high-frequency radio frequency card frequency is mainly 13.56MHz, the super high frequency radio frequency card is mainly 433MHz, 915MHz, 2.45GHz, 5.8GHz etc. and low frequency card system is mainly used in short distance, uses cheaply, as gate inhibition's control of majority, campus card, animal supervision, cargo tracking etc. and high frequency card system is used for gate inhibition's control and needs the application system of transmission mass data; Ultrahigh frequency card system applies is in needs long decipherment distance and the high-speed occasion of discerning, and its antenna beam direction is narrower and price is higher, uses in systems such as train monitoring, expressway tol lcollection.

3. the difference by modulation system can be divided into active and passive type.The active radio frequency card sends data to read write line on one's own initiative with the radio-frequency (RF) energy of self; The passive radio frequency card uses modulation scattering method emission data, and it must utilize the carrier wave of read write line to modulate the signal of oneself, and such technology is suitable for use in gate inhibition or the traffic application, because read write line can guarantee only to activate the radio-frequency card within the certain limit.Having under the situation of barrier, with the modulation scattering method, the energy of read write line must be made a return journey and be passed barrier twice.And the signal of the radio-frequency card of active mode emission only passes barrier once, so the radio-frequency card of active mode work is mainly used in the application of barrier distance farther (can reach 30 meters).

4. can be divided into close coupling by operating distance closes card (operating distance is less than 1 centimetre), nearly coupling card (operating distance is less than 15 centimetres), loose coupling and closes card (about 1 meter of operating distance) and block (operating distance from 1 meter to 10 meters, even farther) at a distance.

5. be divided into a Card Reader, read-write card and CPU card by chip.

Above-mentioned prior art exists following problem and defective

1. when the RFID technology being applied in telecommunications room rack server orientation management, label need be attached on the metal shell of server, in background technology, this situation can cause the reduction greatly that can't read or read distance of label, can't satisfy system requirements;

2. because the thickness of server standard block is 44.45mm, thereon during adhesive label, equipment room is apart from nearer, and requires decipherment distance far away, interferes with each other between the label, can cause label to read or read rate lower;

3. in rfid system, rfid interrogator one a well matched antenna, read range is 5-10cm, and in should using, cover the height of a rack 2.15m, needs the more equipment of identification, antenna amount is a lot of and spacing is very little, causes antenna interference very big; Antenna is many, system cost is higher, has limited application.

4. in should using, require to obtain Servers-all relative order from top to bottom in the rack, and have the problem of server height random, this is that background technology cann't be solved.

The utility model content:

The purpose of this utility model provides the radio frequency identification controller in a kind of machine room rack server orientation management.This rack controller can be at rack of certain time interval interscan, and electronic tag ID number of the recognizing numbering with antenna is mapped; Send to background management system then, after the middleware software of background management system receives data, after the data message analyzing and processing, write in the relevant system database; The query software of background management system is finished daily device status inquiries, Information Statistics, functions such as report making.

This practical property is achieved through the following technical solutions:

This rack controller comprises DC-DC power module, MCU micro controller module, card reading module and a plurality of IO expansion module; Described DC-DC power module provides power supply for MCU micro controller module, card reading module and a plurality of IO expansion module; The MCU micro controller module connects with card reading module and a plurality of IO expansion module respectively by bus.

Described MCU micro controller module also is provided with the RS232 interface.

Antenna output pin for card reader is connected with antenna by analog switch, by the IO expanding element analog switch is carried out gating and is ended the time-sharing work of realization antenna by the MCU microcontroller.Reach and reduce the problem of disturbing between the antenna.

In addition, vertical antenna array in the rack, arrangement from top to down, by certain winding displacement rule with by the address correspondence of MCU (microcontroller) by the IO expanding element, to the Address Recognition of IO expanding element with regard to the indirect identification that has reached the sequencing of antenna array, thereby the purpose of putting order of having accomplished equipment in the identification rack.

If the utility model uses in communication machine room, administrative authority can learn the preservation state of equipment in the machine room very easily; The workload and the error rate of traditional complicate statistics pattern have been significantly reduced; Accelerated the speed of information acquisition and statistics greatly.For the information system management of enterprise provides in time, data guarantee reliably.

Description of drawings:

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is a schematic diagram of the present utility model;

Fig. 2 is the utility model place applied environment synoptic diagram.

Embodiment:

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, rack controller 1 described in the utility model comprises DC-DC power module 11, MCU micro controller module 12, card reading module 13 and a plurality of IO expansion module 14; Described DC-DC power module 11 provides power supply for MCU micro controller module 12, card reading module 13 and a plurality of IO expansion module 14; MCU micro controller module 12 connects with card reading module 13 and a plurality of IO expansion module 14 respectively by bus.Described MCU micro controller module 12 also is provided with the RS232 interface.

Referring to Fig. 2, the implementation process of rack controller 1 residing application system described in the utility model is:

1. antenna array is put into the slit, side of rack 2.

2. the rack controller is positioned over the top or the bottom of rack 2.

3. use homemade connecting line that antenna array and rack controller are coupled together.

4. the anti-metal label of low frequency is sticked on the side assigned address of equipment.

5. RS-485 and the power lead with the rack controller connects.

6. the RS-485 congruence General Logistics Department of all rack controllers is connected to the corresponding interface of background management system computing machine.

7. pass through the address of each rack controller of program setting.

8. the work of can switching on, the equipment that is pasted with electronic tag is put into rack can operate as normal.

The system works principle: each rack controller can be at rack of certain time interval interscan, and electronic tag ID number of the recognizing numbering with antenna is mapped; Send to background management system then, after the middleware software of background management system receives data, after the data message analyzing and processing, write in the relevant system database; The query software of background management system is finished daily device status inquiries, Information Statistics, functions such as report making.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a rack controller comprises DC-DC power module, MCU micro controller module, card reading module and a plurality of IO expansion module; It is characterized in that described DC-DC power module provides power supply for MCU micro controller module, card reading module and a plurality of IO expansion module; The MCU micro controller module connects with card reading module and a plurality of IO expansion module respectively by bus.

2. according to the rack controller of claim 1, it is characterized in that described MCU micro controller module also is provided with the RS232 interface.