CN104429876A - Closed locking type stereoscopic sprout cultivation device based on plant factory technique - Google Patents

Closed locking type stereoscopic sprout cultivation device based on plant factory technique Download PDF

Info

Publication number
CN104429876A
CN104429876A CN201410577206.0A CN201410577206A CN104429876A CN 104429876 A CN104429876 A CN 104429876A CN 201410577206 A CN201410577206 A CN 201410577206A CN 104429876 A CN104429876 A CN 104429876A
Authority
CN
China
Prior art keywords
room
cabinet
water
control panel
bud
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.)
Granted
Application number
CN201410577206.0A
Other languages
Chinese (zh)
Other versions
CN104429876B (en
Inventor
权龙哲
王启晗
邢锡华
孟晓
张加武
奚德君
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.)
Northeast Agricultural University
Original Assignee
Northeast Agricultural University
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 Northeast Agricultural University filed Critical Northeast Agricultural University
Priority to CN201410577206.0A priority Critical patent/CN104429876B/en
Publication of CN104429876A publication Critical patent/CN104429876A/en
Application granted granted Critical
Publication of CN104429876B publication Critical patent/CN104429876B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00Soilless cultivation, e.g. hydroponics
    • A01G31/02Special apparatus therefor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Greenhouses (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)

Abstract

The invention relates to a closed locking type stereoscopic sprout cultivation device. The closed locking type stereoscopic sprout cultivation device comprises a cabinet body, a three-layer soaking chamber, a water inlet pipeline connected with the soaking chamber, a water tank, a water pump, an electromagnetic valve, a relay, thin film keys, a microcomputer control panel and a roller shutter device. After a cultivation machine is started, water temperatures of all layers, the water inlet time interval and the sprout soaking time are adjusted through the microcomputer control panel according to the real-time temperature in the machine body and the types of sprouts. According to the closed locking type stereoscopic sprout cultivation device, the soaking type cultivation method and the stereoscopic structure are adopted, the defects that when a traditional bean sprout growing machine is used for cultivating sprouts, the number of fibrous root is large, and only one kind of sprouts can be cultivated in one machine are overcome, and the purpose of cultivating different kinds of sprouts in one machine at the same time is realized.

Description

A kind of enclosed type solid based on plant factor's technology educates bud equipment
Technical field
The present invention relates to a kind of bean sprout culture equipment, more specifically refer to a kind of sprout culturing apparatus adopting infiltration type breeding method and stereo multilayer to infiltrate cell structure.
Background technology
As everyone knows, bean sprouts is the traditional a kind of vegetables of China, comprises the kinds such as moyashi, mung bean sprouts, black bean sprout and little bean sprouts.Compared with other vegetables, a large amount of protein, vitamin C, asparatate, calcium, iron, food fiber, organic matter, vitamin B1 etc. are contained in bean sprouts, and clear and melodious good to eat, very popular.Traditional bean sprout cultivation method is fairly simple, the step such as be divided into seed selection, seed soaking, trickle vernalization, gather, and the general vessel such as glazed earthen basin crock that adopt carry out manual operations, control temperature, humidity by rule of thumb, and labour intensity is large, and efficiency is very low.Though existing bean sprout growing machine can meet the hope that people have private savings vegetable garden, adopt the bud dish fibrous root of spraying method cultivation more and do not reach the effect only just simultaneously can cultivating multiple bud dish with a machine.The breeding method that the present invention adopts stereo multilayer independently to infiltrate, can solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of small intelligent sprout culturing apparatus of family expenses, this machine can not only make bud dish grow under the environment of relative constancy, ensure germination rate, and can be implemented in a machine object of simultaneously cultivating the less different types of bud dish of fibrous root.
Technical scheme of the present invention is: three-dimensional small intelligent sprout culturing apparatus, the inlet channel, water tank, water pump, magnetic valve, relay, film key, microcomputer control panel and the roller blind device that comprise cabinet, infiltrate room, be connected with infiltration room.Infiltrate the upside that room is fixed on cabinet, inlet channel is fixed on the rear portion of cabinet and communicates with infiltration room, water tank is positioned over the lower left quarter infiltrating room, water pump, magnetic valve, relay, microcomputer control panel are arranged on the lower right side infiltrating room by fixed support, film key is fixed on cabinet outside by lead-in wire, microcomputer control panel connects film key, temperature sensor, relay, heating rod, travel switch, infrared human body inductive switch.
This cabinet is made up of sandwich material, and interlayer outside is natural wood, and it is cotton that heat insulation glass is filled in interlayer inside.
This infiltration room is drawer-type structure, and material is transparent frosted plastic; On the upside of the scupper of each drawer type bottom of gullet retaining bar, there is osculum at 2cm place, and wherein the diameter in top hole is 5mm, and comparatively descend one deck to be 8mm, orlop is 11mm, in order to ensure the identical of reservoir storage.
A waveform semipermeable membrane is fixed, the water filtration that water clock in osculum goes out by this semipermeable membrane by 1/2 place of this water tank length, ensures water cleaning during water circulation.
At the center fixed journey system switch of 30cm, rear portion 8cm bottom this cabinet internal layer, could be energized, in order to economize on electricity and to prevent unexpected generation when bottom infiltrates whole circuit when the drawer type tank of room pushes touching travel switch completely.
A fan is installed with the door of glass and infrared human body inductive switch in the front of this cabinet, roller blind device is had between glass and infiltration room, when infrared human body inductive switch senses that user observes the growing state of the inner bud dish of cultivating machine, roller shutter is opened automatically, ensure that and infiltrates the stable of chamber interior environment.
The micro computer of three-dimensional small intelligent sprout culturing apparatus, by regulating the water temperature of each layer, the time interval of water inlet to the Real-Time Monitoring of internal body temperature and soaking the time of bud dish, realizes each layer accurately temperature control, control water.Adopt immersion type breeding method and three-dimensional structure, improving traditional bean sprout growing machine, to cultivate bud dish fibrous root more and can only cultivate a kind of deficiency of bud dish in a machine simultaneously, achieves the function of simultaneously cultivating variety classes bud dish in a machine.
accompanying drawing illustrates:
Fig. 1 is three-dimensional small intelligent sprout culturing apparatus front view
Fig. 2 is right view of the present invention
Fig. 3 is left view of the present invention
Fig. 4 is the graphics of the indoor layer of infiltration of the present invention
In Fig. 1,1, film key; 2, cabinet; 3, infrared human body inductive switch; 4, room is infiltrated; 5, water tank; 6, hinge; 7, door.
In Fig. 2,8, water pump; 9, transformer; 10, magnetic valve; 11, relay; 12, microcomputer control panel; 13, travel switch; 14, inlet channel.
In Fig. 3,15, backing plate; 16, slideway; 17, temperature sensor; 18, heating rod; 19, gripper shoe; 20, belt; 21, gobo; 22, motor.
In Fig. 4,23, osculum; 24, retaining bar; 25, shake hands; 26, filler strip; 27, drawer type tank.
embodiment:
Be one of the present invention preferably specific embodiment as shown in Figure 1 to Figure 4, a kind of three-dimensional small intelligent sprout culturing apparatus, the inlet channel (14), water tank (5), water pump (8), magnetic valve (10), relay (11), film key (1), microcomputer control panel (12) and the roller blind device that comprise cabinet (2), infiltrate room (4), be connected with infiltration room.Infiltrate the upside that room (4) is fixed on cabinet (2), comprise ectonexine, internal layer comprises osculum (23), retaining bar (24), handle (25), filler strip (26), drawer type tank (27), the rear portion that inlet channel (14) is fixed on this cabinet is connected with infiltration room, water tank (5) is positioned over the lower left quarter infiltrating room (4), water pump (8), magnetic valve (10), relay (11), film key (1) and microcomputer control panel (12) are arranged on the lower right side infiltrating room (4) by fixed support, it is outside that film key (1) is fixed on cabinet (2) by lead-in wire, microcomputer control panel (12) is connected to film key (1), temperature sensor (17), relay (11), heating rod (18), travel switch (13), infrared human body inductive switch (3).
A fan is installed with the door (7) of glass in the front of cabinet (2), and roller blind device fixed by doorframe.
Using method of the present invention is: when producing bud dish, by water tank with water to graduation mark position, the bean or pea soaked evenly are tiled to be educated on bud dish, bud dish will be educated and put into drawer type tank (27), again infiltration room (4) is arranged on backing plate (15), slip slideway slips into infiltrating room (4), until touching travel switch (13), simultaneously heating rod (18), temperature sensor (17) inserts backing plate (15) relevant position, gobo (21) on roller blind device is drawn, pressing respective films button (1) selects the bud colza class that will cultivate of user and its to educate the number of plies at bud dish place, water pump (8) is started working, current select corresponding inlet channel (14) to flow in the drawer type tank (27) of placement bean or pea by the magnetic valve (10) controlled by relay (11), discharge from osculum (23) simultaneously, because the water yield flowed into from inlet channel is greater than the water yield flowed out from osculum, after a period of time, current flood bean or pea, bean or pea start to soak, after water pump (8) quits work a period of time, current are flow to end by osculum (23), once soak end-of-job.Adopt this water circulation system structure simple, easy to operate.
In whole process, water pump (8), magnetic valve (10), relay (11), temperature sensor (17), heating rod (18) control by microcomputer control panel (12), microcomputer control panel (12) regulates the water temperature of each layer, the time interval of water inlet according to the real time temperature of internal body and bud colza class and soaks the time of bud dish, thus realize controlling the independence of each layer, and then achieve the function of simultaneously cultivating variety classes bud dish in same machine.
The front of this cultivating machine cabinet (2) is the door (7) of a fan with glass, the material infiltrating room (4) is the food-grade PP plastics of frosted, in the process of growth of bud dish, when infrared human body inductive switch (13) senses that user observes the growing state of the inner bud dish of cultivating machine, microcomputer control panel (12) controls motor (22) and drives belt (20) to rotate, gobo (21) is pulled open, after infrared human body inductive switch (3) senses that user leaves, gobo (21) gets back to again the position of blocking infiltrating room (4) completely under the effect of roller blind device, user can be made to recognize the upgrowth situation of bud dish, in turn ensure that the stable of bud dish growing environment.
Bud dish is in cultivation after 4 days, and length reaches about 6cm i.e. edible, specifically will determine according to the kind of bud dish and personal like.

Claims (5)

1. the enclosed type solid based on plant factor's technology educates bud equipment, comprise cabinet (2), infiltrate room (4), the inlet channel (14) be connected with infiltration room, water tank (5), water pump (8), magnetic valve (10), relay (11), film key (1), microcomputer control panel (12) and roller blind device, it is characterized in that, infiltrate the upside that room (4) is fixed on this cabinet (1), comprise ectonexine, internal layer comprises osculum (23), retaining bar (24), handle (25), filler strip (26), drawer type tank (27), inlet channel (14) is fixed on the rear portion of cabinet (2) and communicates with infiltration room (4), water tank (5) is positioned over the lower left quarter infiltrating room (4), and water pump (8), magnetic valve (10), relay (11), microcomputer control panel (12) are arranged on the lower right side infiltrating room (4) by fixed support, it is outside that film key (1) is fixed on cabinet (2) by lead-in wire, microcomputer control panel (12) is connected to film key (1), temperature sensor (17), relay (11), heating rod (18), travel switch (13), infrared human body inductive switch (3), a fan is installed with the door (7) of glass in the front of cabinet (2), and roller blind device fixed by doorframe, by this microcomputer control panel (12), realize regulating and controlling the layered self-adapting of this infiltration room (4), meet the growth needs of variety classes bud dish in different layers.
2. enclosed type solid according to claim 1 educates bud equipment, it is characterized in that, this infiltration room (4) being used for educating bud is embedded in backing plate (15), backing plate (15) is arranged on slideway (16), slideway (16) is fixed on double sandwich insulation cabinet (2), left side slideway is apart from double sandwich insulation cabinet (2) lower shoe 20cm, rear base plate 6cm, the right slideway is apart from double sandwich insulation cabinet (2) lower shoe 21cm, rear base plate 6cm.
3. enclosed type solid according to claim 1 educates bud equipment, it is characterized in that, this infiltration room (4) is drawer-type structure, is made up of ectonexine, and material is transparent frosted plastic, infiltrate room (4) internal layer base plate apart from the fixing filler strip (26) 2 in 2cm place, handle (25) right side, filler strip (26) spacing is 20cm, long 10cm, wide 2cm, high 1cm, the upper sieve mesh type of placing of filler strip (26) educates bud dish, infiltrate room (4) internal layer base plate apart from the fixing retaining bar (24) in 2cm place, handle (25) upside, retaining bar is consistent with bottom lengths, wide 1cm, high 1cm, the scupper that these retaining bar (24) central authorities have 1cm wide, there is osculum (23) at the base plate place of this retaining bar scupper positive upside 2cm, wherein the diameter of the osculum (23) of top infiltration room (4) is 5mm, one deck is comparatively descended to be 8mm, orlop is 11mm, the identical of every layer of reservoir storage is ensured with the water inlet of osculum (23) synergic adjustment with drainage discharge by inlet channel (14).
4. enclosed type solid according to claim 1 educates bud equipment, it is characterized in that, the end face contacted with infiltration room (4) at this backing plate (15) inserts heating rod (18), thick bottom, this heating rod (18) top heating part is thin, insertion position is apart from the front end face 5cm of the close door (7) of backing plate (15), left side 4cm, upper apart from heating rod (18) 3cm at backing plate (15), 4cm place, left side inserts temperature sensor (17), it is inner that the working portion of heating rod (18) and temperature sensor (17) also inserts water tank (5) simultaneously, there is insertion groove the corresponding position of water tank (5), can fix after insertion, fix a waveform semipermeable membrane at length 1/2 place of water tank (5), the water that water clock in osculum goes out by this semipermeable membrane filters, and ensures water cleaning during water circulation.
5. enclosed type solid according to claim 1 educates bud equipment, it is characterized in that, the door (7) of a fan with glass is installed in the front of this cabinet (2), at cabinet (2) left interlayer front surface installation infrared human induction switch (3), apart from interlayer left side 1cm, upper surface 4cm, roller blind device is had between glass and infiltration room (4), when infrared human body inductive switch (13) senses that user observes the growing state of the inner bud dish of cultivating machine, microcomputer control panel (12) controls motor (22) and drives belt (20), gobo (21) is pulled open, after infrared human body inductive switch senses that user leaves, gobo gets back to again the position of blocking infiltrating room (4) completely under the effect of roller blind device, this feature is convenient to raiser and is observed the growing state infiltrating indoor bud dish, ensure that raiser infiltrates the stable of indoor environment when observing the growth of bud dish simultaneously.
CN201410577206.0A 2014-10-27 2014-10-27 A kind of enclosed type solid based on plant factor's technology educates bud equipment Expired - Fee Related CN104429876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410577206.0A CN104429876B (en) 2014-10-27 2014-10-27 A kind of enclosed type solid based on plant factor's technology educates bud equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410577206.0A CN104429876B (en) 2014-10-27 2014-10-27 A kind of enclosed type solid based on plant factor's technology educates bud equipment

Publications (2)

Publication Number Publication Date
CN104429876A true CN104429876A (en) 2015-03-25
CN104429876B CN104429876B (en) 2016-08-17

Family

ID=52877239

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410577206.0A Expired - Fee Related CN104429876B (en) 2014-10-27 2014-10-27 A kind of enclosed type solid based on plant factor's technology educates bud equipment

Country Status (1)

Country Link
CN (1) CN104429876B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106010956A (en) * 2016-06-29 2016-10-12 哈尔滨华藻生物科技开发有限公司 Spirulina seed/seedling multistage cultivation device
CN106359065A (en) * 2016-11-04 2017-02-01 东莞辰达电器有限公司 Tide-type planting system
CN107597710A (en) * 2017-10-26 2018-01-19 合肥科地尔农业技术开发有限公司 A kind of cleaning equipment
CN107597711A (en) * 2017-10-26 2018-01-19 安徽燕之坊食品有限公司 A kind of whirling vibration integral type sprouted unpolished rice cleans lifting device
CN107683763A (en) * 2017-11-15 2018-02-13 梅博文 Family expenses bean sprout plants cabinet
CN107716435A (en) * 2017-10-26 2018-02-23 安徽理工大学 One kind cleaning lifting device
CN107913873A (en) * 2017-10-26 2018-04-17 安徽理工大学 A kind of rotary cleaning device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB444377A (en) * 1934-09-01 1936-03-19 Hermann Beck Cabinet for promoting germination of seeds and growth of seedlings
GB473279A (en) * 1935-10-24 1937-10-04 Charlotte Dobenzig Apparatus for the production of plant sprouts
GB744200A (en) * 1952-08-27 1956-02-01 Henry Maurice Stern Device for the artificial germination of seeds, grain and the like
CN101057550A (en) * 2006-04-19 2007-10-24 中国农业大学 Closed type fully using artificial light environment controlled plant factory
CN202050765U (en) * 2011-01-31 2011-11-30 刘国平 Novel fully automatic energy-saving bean sprouting machine
CN102960197A (en) * 2012-12-17 2013-03-13 东北农业大学 Spatial type intelligent seedling-raising robot platform suitable for plant industrialized production
CN103098693A (en) * 2013-02-06 2013-05-15 惠州伟志电子有限公司 Miniature light-emitting diode (LED) plant factory
KR20130098091A (en) * 2012-02-27 2013-09-04 주식회사 세원시스첸 Plants cultivation apparatus
CN103733971A (en) * 2014-01-17 2014-04-23 汪蕾 Soilless vegetable cultivation machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB444377A (en) * 1934-09-01 1936-03-19 Hermann Beck Cabinet for promoting germination of seeds and growth of seedlings
GB473279A (en) * 1935-10-24 1937-10-04 Charlotte Dobenzig Apparatus for the production of plant sprouts
GB744200A (en) * 1952-08-27 1956-02-01 Henry Maurice Stern Device for the artificial germination of seeds, grain and the like
CN101057550A (en) * 2006-04-19 2007-10-24 中国农业大学 Closed type fully using artificial light environment controlled plant factory
CN202050765U (en) * 2011-01-31 2011-11-30 刘国平 Novel fully automatic energy-saving bean sprouting machine
KR20130098091A (en) * 2012-02-27 2013-09-04 주식회사 세원시스첸 Plants cultivation apparatus
CN102960197A (en) * 2012-12-17 2013-03-13 东北农业大学 Spatial type intelligent seedling-raising robot platform suitable for plant industrialized production
CN103098693A (en) * 2013-02-06 2013-05-15 惠州伟志电子有限公司 Miniature light-emitting diode (LED) plant factory
CN103733971A (en) * 2014-01-17 2014-04-23 汪蕾 Soilless vegetable cultivation machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曾松伟,刘敬彪,周巧娣: "基于FPGA 的植物工厂控制系统研究", 《农机化研究》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106010956A (en) * 2016-06-29 2016-10-12 哈尔滨华藻生物科技开发有限公司 Spirulina seed/seedling multistage cultivation device
CN106359065A (en) * 2016-11-04 2017-02-01 东莞辰达电器有限公司 Tide-type planting system
CN107597710A (en) * 2017-10-26 2018-01-19 合肥科地尔农业技术开发有限公司 A kind of cleaning equipment
CN107597711A (en) * 2017-10-26 2018-01-19 安徽燕之坊食品有限公司 A kind of whirling vibration integral type sprouted unpolished rice cleans lifting device
CN107716435A (en) * 2017-10-26 2018-02-23 安徽理工大学 One kind cleaning lifting device
CN107913873A (en) * 2017-10-26 2018-04-17 安徽理工大学 A kind of rotary cleaning device
CN107683763A (en) * 2017-11-15 2018-02-13 梅博文 Family expenses bean sprout plants cabinet

Also Published As

Publication number Publication date
CN104429876B (en) 2016-08-17

Similar Documents

Publication Publication Date Title
CN104429876B (en) A kind of enclosed type solid based on plant factor's technology educates bud equipment
CN202285745U (en) Household soilless culture box
CN103416291B (en) Bean seedling/ bean sprout machine and cultivating method for bean seedlings/ bean sprouts
CN206641099U (en) A kind of city apartment intelligence green plant implant system
CN101213931A (en) Sprout vegetables intelligent breeding device
CN201919384U (en) Stereoscopic plant cultivation system
CN201138975Y (en) Intelligent cultivation apparatus for bud seedling
CN204132123U (en) A kind of family planter
CN104255398B (en) A kind of domestic automatic irrigation system
CN203896953U (en) Regular-water-supply sprouting-vegetable three-dimensional planting device
CN102726279A (en) Bean sprout cultivation room
CN206024775U (en) Indoor cabinet formula four seasons vegetable planting machine
CN206491666U (en) Automatic meter Shui Fen is from electric cooker
CN205305556U (en) Multifunctional seeding box
CN108934525B (en) Egg type intelligence vegetable planting desk lamp
CN202068787U (en) Root-growth accelerating device for root-cutting grafted seedling of melon crops
CN102612998A (en) Method for out-of-season cultivation of needle mushrooms in summer without air-conditioning refrigeration
CN204426239U (en) Full-automatic shoot vegetable machine
CN205694810U (en) A kind of automatic water filling bean sprout growing machine
CN206744143U (en) Commercial bean sprouts production facility
CN105724322A (en) Indoor large-scale breeding method for corydalus cornutus larvae and pupae
CN206354136U (en) A kind of indoor micro-nano bubble hydroponic device
CN102342238B (en) The rural nursery of domestic, economize on water, humidify, anion multifunctional ecological device
CN204146178U (en) A kind of aquarium-type tea table
CN204362670U (en) A kind of family expenses leafy vegetable incubator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160817

Termination date: 20181027

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