CN206601600U - A kind of computer room comprehensive monitoring system - Google Patents

A kind of computer room comprehensive monitoring system Download PDF

Info

Publication number
CN206601600U
CN206601600U CN201720337731.4U CN201720337731U CN206601600U CN 206601600 U CN206601600 U CN 206601600U CN 201720337731 U CN201720337731 U CN 201720337731U CN 206601600 U CN206601600 U CN 206601600U
Authority
CN
China
Prior art keywords
module
monitoring
host computer
computer
computer room
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720337731.4U
Other languages
Chinese (zh)
Inventor
李广
张鲲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ji'nan Longjianda Electronics Technology Co Ltd
Original Assignee
Ji'nan Longjianda Electronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ji'nan Longjianda Electronics Technology Co Ltd filed Critical Ji'nan Longjianda Electronics Technology Co Ltd
Priority to CN201720337731.4U priority Critical patent/CN206601600U/en
Application granted granted Critical
Publication of CN206601600U publication Critical patent/CN206601600U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of computer room comprehensive monitoring system, including monitoring host computer, the monitoring host computer is connected with environment monitoring module, power supply monitoring module and picture recording module by WiFi wireless communication modules;The monitoring host computer is connected with locating module, telephone call module, computer room alarm modules, corridor alarm module, air purifier, precision air conditioner and fire-smothering gear by Zigbee wireless communication modules;The monitoring host computer is attached by optical fiber cable network and cloud server, the monitoring host computer is attached by WiFi wireless networks with local control terminal, and the monitoring host computer is attached by GPRS, 3G or 4G cordless communication network with mobile control terminal.The utility model can make monitoring device be alarmed automatically, wirelessly be monitored the connection of equipment, and the dust content in air in computer room can be monitored, and carry out filtration, purification to air in time.

Description

A kind of computer room comprehensive monitoring system
Technical field
The utility model is related to computer room management domain, more particularly to a kind of computer room comprehensive monitoring system.
Background technology
With the development of informationization technology, the increasing Enterprise Construction computer room of oneself turns into computer room The cental system of storage and transmission information during enterprise operation.In order to ensure the normal operation of company information storage and transmission, It is necessary that in computer room various hardware devices safe and reliable operation.The ambient parameters such as temperature, humidity, air quality are influences The key factor of hardware device operation conditions in computer room, once PC Rooms Environmental Facilities break down, will influence information and control The normal operation of equipment, threatens to data transfer, storage and whole system reliability of operation, accordingly, it would be desirable between not Internal environment disconnectedly to computer room is monitored.
There is certain defect in existing machine room monitoring system:First, most computer rooms need staff to be used in Control Room Computer or related display device are checked to the regional of computer room, are wasted time and energy, and need several staff to carry out Alternation of day and night is on duty, and is periodically patrolled in computer room, higher to artificial dependence, and automaticity is low, special when occurring During situation, lack complete accident interlink warning function.
In addition, being attached at present between the monitoring device of major part computer room by the way of wired, with being set in computer room It is standby to be continuously increased with dilatation, it is necessary to be modified to circuit or rearrangement, it is unfavorable for extension and renewal of the equipment, adds fortune The cost of dimension.
In addition, lack the monitoring scheme to computer room dust in air in monitoring system, the precision equipment such as server in server room Generally there is the requirement of dust-proof aspect, if run for a long time in the exceeded environment of dust, it is most likely that radiating can be caused not The problem of good, power consumption increase and service life shorten.
Utility model content
In order to make up the deficiencies in the prior art, the utility model provides a kind of computer room comprehensive monitoring system, can make prison Control equipment is alarmed automatically, is wirelessly monitored the connection of equipment, and can be to the dust in air in computer room Content is monitored, to solve problems of the prior art.
The utility model is achieved by the following technical solution:
A kind of computer room comprehensive monitoring system, including monitoring host computer, the monitoring host computer are connected by WiFi wireless communication modules Environment monitoring module, power supply monitoring module and picture recording module are connect, the monitoring host computer is by using the clothes that two-node cluster hot backup mode is disposed Business device composition;The environment monitoring module includes Temperature Humidity Sensor, Smoke Sensor and particle counting sensor;The power supply Monitoring modular includes voltage sensor and current sensor;The picture recording module includes camera and harddisk memory;
The monitoring host computer connects locating module, telephone call module, computer room alarm by Zigbee wireless communication modules Module, corridor alarm module, air purifier, precision air conditioner and fire-smothering gear;The locating module is GPS positioning device Or Big Dipper positioner;The telephone call module includes being inserted with the dialing alarm of SIM card and is inserted with the SMS alarm of SIM card Device;The computer room alarm modules and corridor alarm module are acoustooptic alarm;
The monitoring host computer is attached by optical fiber cable network and cloud server, and the monitoring host computer passes through WiFi Wireless network is attached with local control terminal, and the monitoring host computer passes through GPRS cordless communication networks, 3G wireless communication networks Network or 4G cordless communication networks are attached with mobile control terminal;The local control terminal is desktop computer or notebook Computer;The mobile control terminal is the smart mobile phone with network function, tablet personal computer or PDA;
The monitoring host computer, environment monitoring module, power supply monitoring module, picture recording module, locating module, telephone call module It is connected respectively with ups power with fire-smothering gear.
Further optimally, the camera in the picture recording module is fish eye camera.
Further optimally, the fire-smothering gear is heptafluoro-propane fire extinguisher or carbon dioxide extinguisher.
Further optimally, the Temperature Humidity Sensor is DHT11 digital hygro sensors.
Further optimally, the ups power is on line type UPS power supply.
The beneficial effects of the utility model are:Monitoring device can be made to be alarmed automatically, environment in computer room is occurred It is dangerous to notify related operation maintenance personnel in time, reduce the work load of room management personnel;Wirelessly it is monitored equipment Connection, make computer room connection more clean and tidy, connect up it is more convenient;And the dust content in air in computer room can be carried out Monitoring, carries out filtration, purification, suitable for wide popularization and application to air in time.
Brief description of the drawings
Fig. 1 is system connection diagram of the present utility model.
In figure, 1, monitoring host computer;11st, WiFi wireless communication modules;12nd, Zigbee wireless communication modules;13rd, cloud service Device;14th, local control terminal;15th, mobile control terminal;16th, ups power;2nd, environment monitoring module;21st, Temperature Humidity Sensor; 22nd, Smoke Sensor;23rd, particle counting sensor;3rd, power supply monitoring module;31st, voltage sensor;32nd, current sensor;4、 Picture recording module;41st, camera;42nd, harddisk memory;100th, locating module;200th, telephone call module;201st, dialing alarm Device;202nd, Short message alarm;300th, computer room alarm modules;400th, corridor alarm module;500th, air purifier;600th, it is accurate empty Adjust;700th, fire-smothering gear.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this reality It is described in detail with new.
As shown in figure 1, present embodiment discloses a kind of computer room comprehensive monitoring system, including monitoring host computer 1, the monitoring master Machine 1 uses WiFi by the JA(junction ambient) monitoring modular 2 of WiFi wireless communication modules 11, power supply monitoring module 3 and picture recording module 4 Wireless communication module 11 carries out equipment connection, can reduce the wiring in computer room, improves the dilatancy of newly-increased oil (gas) filling device.The prison The server group that control main frame 1 is disposed by use two-node cluster hot backup mode is into the monitoring host computer 1 is controlled as the center of monitoring system Equipment, for receiving and recording the information that environment monitoring module 2 and power supply monitoring module 3 are sent, and to the image of picture recording module 4 Information Pull network is forwarded, and enables the situation in administrative staff's remote reviewing computer room;By using the clothes of two-node cluster hot backup It is engaged in device, can be when server break down wherein, another server is still able to normal work, it is ensured that supervised in computer room The normal operation of control system.
The environment monitoring module 2 includes Temperature Humidity Sensor 21, Smoke Sensor 22 and particle counting sensor 23, point It Yong Yu not detect the diameter and quantity of temperature in computer room, humidity, smokescope and dust in air particle, and will get Data are uploaded to monitoring host computer 1 by WiFi wireless communication modules 11.The power supply monitoring module 3 includes the He of voltage sensor 31 Current sensor 32, for monitoring electric current and voltage status during equipment operation in computer room in real time, and the data got is led to Cross WiFi wireless communication modules 11 and be uploaded to monitoring host computer 1.The picture recording module 4 includes camera 41 and harddisk memory 42, Image information storage in the computer room that recorded is arrived harddisk memory 42 by the camera 41, is easy to the environmental information to computer room Playback is carried out to check.The monitoring host computer 1 for the temperature got, humidity, smokescope, dust in air particle diameter With quantity and the data of electric current and voltage, the pre-set corresponding warning numerical value of difference, when environment monitoring module 2 is fed back A certain item or a few environmental datas close to warning numerical value when, monitoring host computer 1 can control corresponding air-conditioning, air cleaning etc. to set It is standby to open, enter the work such as trip temperature cooling or air cleaning, by each item data control of building environment in reasonable benefit/risk In the range of, and warning device alert is controlled simultaneously, notify administrative staff.
The monitoring host computer 1 by Zigbee wireless communication modules 12 connect locating module 100, telephone call module 200, Computer room alarm modules 300, corridor alarm module 400, air purifier 500, precision air conditioner 600 and fire-smothering gear 700. Zigbee is a kind of low-power consumption, the Local Area Networt Communication Protocols of low cost, is suitable for automation field, by using Zigbee Wireless communication technology, can reduce the installation work of computer room, make the working environment of computer room cleaner and tidier, be conducive to entering new equipment Row expands.The locating module 100 is GPS positioning device or Big Dipper positioner, for the location of computer room information is anti- Monitoring host computer 1 is fed to, such as enterprise possesses computer room in multiple cities, and when dangerous situation occurs in certain computer room, administrative staff can pass through Locating module 100 knows the geographical position where computer room, takes emergency measures in time.
By Zigbee wireless communication modules 12, the monitoring host computer 1 can control telephone call module 200, computer room police Report the unlatching of module 300, corridor alarm module 400, air purifier 500, precision air conditioner 600 and fire-smothering gear 700.Institute Stating telephone call module 200 includes being inserted with the dialing alarm 201 of SIM card and is inserted with the Short message alarm 202 of SIM card;It is described Computer room alarm modules 300 and corridor alarm module 400 are acoustooptic alarm.When environment monitoring module 2, power supply monitoring module 3 The data detected close to monitoring host computer 1 default warning numerical value when, monitoring host computer 1 will control telephone call module 200, computer room Alarm modules 300 and corridor alarm module 400 are opened, and the landline telephone of computer lab management personnel is dialed by dialing alarm 201 Or mobile phone, and alarming short message is sent to the mobile phone of computer lab management personnel by Short message alarm 202, notify custodian Member takes further emergency measure;Other monitoring host computer 1 will control to open the audible-visual annunciator in computer room and in corridor, remind Other nigh staff are on the scene in time.
When the data that particle counting sensor 23 detects computer room dust in air particle diameter and quantity are warned close to default When guarding against numerical value, monitoring host computer 1 will control air purifier 500 to open, and the air in computer room is filtered, and reduce computer room air The content of middle dust.When Temperature Humidity Sensor 21 detects data the presetting close to monitoring host computer 1 of temperature or humidity in computer room When guarding against numerical value, monitoring host computer 1 will control the unlatching of precision air conditioner 600 to be adjusted, and make temperature or humid control reasonable at one In the scope of safety.When default warning of the smog content data close to monitoring host computer 1 in the computer room that Smoke Sensor 22 is detected During numerical value, monitoring host computer 1 will control fire-smothering gear 700 to open, the generation of burning things which may cause a fire disaster in prevention computer room.
The monitoring host computer 1 is attached by optical fiber cable network with cloud server 13, uses optical fiber cable network The detection data of storage are uploaded to cloud server 13 by the Long-range Data Transmission that can be stablized, monitoring host computer 1, convenient Data are backed up, and prevent loss of data, while being easy to the environmental data before and after dangerous situation occurs to be analyzed and compared, in time It was found that problem present in management.
The monitoring host computer 1 is attached by WiFi wireless networks with local control terminal 14, and the local control is eventually End 14 is desktop computer or notebook.Each item data is sent to locally by monitoring host computer 1 by WiFi wireless networks Control terminal 14, and the equipment control command that local control terminal 14 is sent can be received, enterprise is special without being set in computer room Control Room, administrative staff connect WiFi wireless networks in office by desktop computer or notebook, you can Computer room is checked and controlled.
The monitoring host computer 1 is by GPRS cordless communication networks, 3G cordless communication networks or 4G cordless communication networks with moving Dynamic control terminal 15 is attached;The mobile control terminal 15 be the smart mobile phone with network function, tablet personal computer or PDA.Monitoring host computer 1 is sent out each item data by GPRS cordless communication networks, 3G cordless communication networks or 4G cordless communication networks Mobile control terminal 15 is sent to, and the equipment control command that mobile control terminal 15 is sent can be received, administrative staff are outgoing When pass through smart mobile phone, tablet personal computer or PDA, you can computer room is checked and controlled, and receive monitoring host computer 1 transmission report Alert information.
The monitoring host computer 1, environment monitoring module 2, power supply monitoring module 3, picture recording module 4, locating module 100, phone Alarm module 200 and fire-smothering gear 700 are connected with ups power 16 respectively.When line voltage powers unstable or power failure, The data that voltage sensor 31 and current sensor 32 are detected can reach the default warning numerical value of monitoring host computer 1, monitoring host computer 1 Control is opened into ups power 16 to environment monitoring module 2, power supply monitoring module 3, picture recording module 4, locating module 100, phone report Alert module 200 and fire-smothering gear 700 are powered, it is ensured that the stable operation of equipment, and warning message sent in time to Administrative staff.
As a preferred embodiment, the camera 41 in the picture recording module 4 is fish eye camera, flake shooting Machine can carry out a wide range of panoramic shooting without dead angle to computer room inside, and only a small amount of fish eye camera need to be installed i.e. in computer room Preferable shooting effect can be achieved, is that enterprise reduces computer room construction cost.
As a preferred embodiment, the fire-smothering gear 700 is heptafluoro-propane fire extinguisher or carbon dioxide Fire extinguisher, when there is burning things which may cause a fire disaster generation in computer room, because the sophisticated electronics in computer room can not use water source to be puted out a fire to save life and property, is used Heptafluoro-propane fire extinguisher or carbon dioxide extinguisher can substantially reduce equipment loss when putting out a fire to save life and property burning things which may cause a fire disaster.
As a preferred embodiment, the Temperature Humidity Sensor 21 is DHT11 digital hygro sensors, this sets The digital module acquisition technique and temperature and humidity sensing technology of standby application specific, with high reliability and long-time stability.
As a preferred embodiment, the ups power 16 is on line type UPS power supply, after computer room has a power failure, On line type UPS power supply can provide longer power-on time for the visual plant in computer room, critical data is preserved, More times implementation emergency measures are provided for administrative staff.
To sum up, the utility model can make monitoring device be alarmed automatically, and the danger that environment in computer room is occurred is timely Related operation maintenance personnel is notified, the work load of room management personnel is reduced;The connection of equipment is wirelessly monitored, is made Computer room connection is more clean and tidy, and it is more convenient to connect up;And the dust content in air in computer room can be monitored, in time Filtration, purification is carried out to air.
Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.Finally illustrate, with Upper embodiment is only unrestricted to illustrate the technical solution of the utility model, although with reference to preferred embodiment to the utility model It is described in detail, it will be understood by those within the art that, the technical solution of the utility model can be repaiied Change or equivalent substitution, without departing from the objective and scope of technical solutions of the utility model, it all should cover in the utility model Right among.

Claims (5)

1. a kind of computer room comprehensive monitoring system, including monitoring host computer (1), it is characterised in that:The monitoring host computer (1) passes through WiFi Wireless communication module (11) JA(junction ambient) monitoring modular (2), power supply monitoring module (3) and picture recording module (4), the monitoring host computer (1) by the server group disposed using two-node cluster hot backup mode into;The environment monitoring module (2) includes Temperature Humidity Sensor (21), Smoke Sensor (22) and particle counting sensor (23);The power supply monitoring module (3) includes voltage sensor (31) With current sensor (32);The picture recording module (4) includes camera (41) and harddisk memory (42);
The monitoring host computer (1) connects locating module (100), telephone call module by Zigbee wireless communication modules (12) (200), computer room alarm modules (300), corridor alarm module (400), air purifier (500), precision air conditioner (600) and gas Extinguishing device (700);The locating module (100) is GPS positioning device or Big Dipper positioner;The telephone call module (200) include being inserted with the dialing alarm (201) of SIM card and be inserted with the Short message alarm (202) of SIM card;The computer room alarm Module (300) and corridor alarm module (400) are acoustooptic alarm;
The monitoring host computer (1) is attached by optical fiber cable network with cloud server (13), and the monitoring host computer (1) is led to WiFi wireless networks are crossed to be attached with local control terminal (14), the monitoring host computer (1) by GPRS cordless communication networks, 3G cordless communication networks or 4G cordless communication networks are attached with mobile control terminal (15);The local control terminal (14) For desktop computer or notebook;The mobile control terminal (15) is the smart mobile phone with network function, flat board Computer or PDA;
The monitoring host computer (1), environment monitoring module (2), power supply monitoring module (3), picture recording module (4), locating module (100), telephone call module (200) and fire-smothering gear (700) are connected with ups power (16) respectively.
2. computer room comprehensive monitoring system according to claim 1, it is characterised in that:Shooting in the picture recording module (4) Head (41) is fish eye camera.
3. computer room comprehensive monitoring system according to claim 1, it is characterised in that:The fire-smothering gear (700) is Heptafluoro-propane fire extinguisher or carbon dioxide extinguisher.
4. computer room comprehensive monitoring system according to claim 1, it is characterised in that:The Temperature Humidity Sensor (21) is DHT11 digital hygro sensors.
5. computer room comprehensive monitoring system according to claim 1, it is characterised in that:The ups power (16) is online Ups power.
CN201720337731.4U 2017-03-31 2017-03-31 A kind of computer room comprehensive monitoring system Expired - Fee Related CN206601600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720337731.4U CN206601600U (en) 2017-03-31 2017-03-31 A kind of computer room comprehensive monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720337731.4U CN206601600U (en) 2017-03-31 2017-03-31 A kind of computer room comprehensive monitoring system

Publications (1)

Publication Number Publication Date
CN206601600U true CN206601600U (en) 2017-10-31

Family

ID=60145179

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720337731.4U Expired - Fee Related CN206601600U (en) 2017-03-31 2017-03-31 A kind of computer room comprehensive monitoring system

Country Status (1)

Country Link
CN (1) CN206601600U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107728560A (en) * 2017-11-23 2018-02-23 岭南师范学院 A kind of computer laboratory safety monitoring assembly and its monitoring method
CN108021166A (en) * 2017-12-26 2018-05-11 广州锋牛网络科技有限公司 A kind of computer room integrated maintenance service system
CN108073490A (en) * 2017-12-26 2018-05-25 云栖科技(广州)有限公司 A kind of intelligent computer computer room control system
CN108088497A (en) * 2017-12-04 2018-05-29 广州黑曜石科技有限公司 A kind of computer floor integrated maintenance system
CN108153197A (en) * 2017-12-28 2018-06-12 重庆洪深现代视声技术有限公司 Dynamic environment monitoring system based on MUC control chips
CN108390932A (en) * 2018-02-24 2018-08-10 河南工程学院 A kind of computer remote monitoring device
CN108681285A (en) * 2018-05-24 2018-10-19 安徽国电京润电力科技有限公司 A kind of power station environmental monitoring system and its implementation
CN108873795A (en) * 2018-07-30 2018-11-23 莫毓昌 A kind of intelligent monitor system capable of automatic alarm
CN109032214A (en) * 2018-06-28 2018-12-18 常州大学 A kind of computer room security alerting system
CN112365011A (en) * 2020-11-09 2021-02-12 广州电力通信网络有限公司 Relay support system for reliability of IDC operation and maintenance service
CN113263952A (en) * 2021-05-25 2021-08-17 深圳市科力尔智能控制技术有限公司 Double-electric-power intelligent monitoring system and using method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107728560A (en) * 2017-11-23 2018-02-23 岭南师范学院 A kind of computer laboratory safety monitoring assembly and its monitoring method
CN108088497A (en) * 2017-12-04 2018-05-29 广州黑曜石科技有限公司 A kind of computer floor integrated maintenance system
CN108021166A (en) * 2017-12-26 2018-05-11 广州锋牛网络科技有限公司 A kind of computer room integrated maintenance service system
CN108073490A (en) * 2017-12-26 2018-05-25 云栖科技(广州)有限公司 A kind of intelligent computer computer room control system
CN108153197A (en) * 2017-12-28 2018-06-12 重庆洪深现代视声技术有限公司 Dynamic environment monitoring system based on MUC control chips
CN108390932A (en) * 2018-02-24 2018-08-10 河南工程学院 A kind of computer remote monitoring device
CN108681285A (en) * 2018-05-24 2018-10-19 安徽国电京润电力科技有限公司 A kind of power station environmental monitoring system and its implementation
CN109032214A (en) * 2018-06-28 2018-12-18 常州大学 A kind of computer room security alerting system
CN108873795A (en) * 2018-07-30 2018-11-23 莫毓昌 A kind of intelligent monitor system capable of automatic alarm
CN112365011A (en) * 2020-11-09 2021-02-12 广州电力通信网络有限公司 Relay support system for reliability of IDC operation and maintenance service
CN113263952A (en) * 2021-05-25 2021-08-17 深圳市科力尔智能控制技术有限公司 Double-electric-power intelligent monitoring system and using method

Similar Documents

Publication Publication Date Title
CN206601600U (en) A kind of computer room comprehensive monitoring system
CN204652570U (en) The long-range cruising inspection system of fire protection equipment
CN209514355U (en) One kind being based on LoRa technology Internet of Things distribution room monitoring system
CN207718209U (en) A kind of environmental monitoring and safety pre-warning system
CN107241214A (en) A kind of mobile phone A PP computer room operational systems
CN204990600U (en) Computer lab security protection monitored control system
CN203101995U (en) Machine room comprehensive environment monitoring and early warning system
CN211207128U (en) Computer lab power environment monitoring device based on thing networking
CN207408803U (en) Dynamic environment monitoring apparatus and system
CN205544586U (en) A real -time monitoring system for indoor substation
CN111787057B (en) Automatic management system for data center machine room of campus network machine room
CN103207616A (en) Environmental information monitoring method for transformer substation
CN102974064A (en) Fire-extinguishing agent gas pressure network monitoring system of gas fire-extinguishing system bottle unit
CN204143608U (en) Emergency alarm and Intelligent police service disposal system
CN206096878U (en) Machine room monitoring equipment
CN204360200U (en) A kind of real-time monitoring system
CN105223997A (en) A kind of intelligent cabinet with moisture-proof function
CN112217288A (en) Power distribution system based on Internet of things and control method thereof
CN205941681U (en) ESD's direct current voltage detecting system in field of gas transmission station
CN208424404U (en) Multizone data center computer room Centralized Monitoring management system
CN208477698U (en) Unattended people's air-defence warning's system
CN105223891A (en) A kind of intelligent cabinet being applied to data center machine room
CN102798416A (en) Monitoring system for power environment in machine room
CN204496662U (en) Based on ZigBee intelligent remote fuel gas leak alarm systems
CN210518554U (en) Network camera

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171031

Termination date: 20190331

CF01 Termination of patent right due to non-payment of annual fee