CN106052736B - The node protective cover of ZigBee technology environmental monitoring system - Google Patents
The node protective cover of ZigBee technology environmental monitoring system Download PDFInfo
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- CN106052736B CN106052736B CN201610566178.1A CN201610566178A CN106052736B CN 106052736 B CN106052736 B CN 106052736B CN 201610566178 A CN201610566178 A CN 201610566178A CN 106052736 B CN106052736 B CN 106052736B
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- China
- Prior art keywords
- half core
- annular groove
- control panel
- protective cover
- upper half
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
Abstract
The present invention discloses a kind of node protective cover of ZigBee technology environmental monitoring system, including superstructure, bottom structure and control panel.Superstructure and bottom structure are formed using upper and lower two hemispheres, and each hemisphere is made of Loadings On Hemispherical Shell and half core, and two halves sphere is linked together by the internal and external threads of half core, forms complete sphere.Episphere housing is equipped with strip fenestra, parallel with the size ring groove position of upper half core.Upper half core prevents water from entering ball interior by two-stage annular groove, and the center of upper half core, which is equipped with air hole, makes protective cover internal and external environment consistent.Lower half core is designed using roly-poly type, and bottom is equipped with counterweight cabin, being capable of adjust automatically node posture.The present invention has the advantages that at low cost, low in energy consumption, small, safe and reliable, water, shock, install convenient and node posture adjust automatically.
Description
Technical field
The invention belongs to field of mechanical technique, further relate to one kind in sensor technology, internet of things field
The node protective cover of ZigBee technology environmental monitoring system.The present invention proposes a kind of there is that ventilative, waterproof, shockproof, posture is automatic
The wireless telecom equipment of functions and the safeguard structures of sensor node such as adjustment, it is easy to carry, quick to meet sensor node
Deployment and the requirement of anti-adverse environment.
Background technology
Existing enviromental monitoring equipment is most of to be all mounted on the unattended places such as deserted mountain meadow, jungle, river dyke,
Wireline connected device volume is big, of high cost, and power consumption is big, installs and uses inconvenience, and wireless device in practical applications then easily by
To the limitation of power consumption, volume, cost, transmission reliability etc., node deployment is inconvenient, and equipment protection poor performance,
The environment such as easily being impregnated, roll, shaking in natural environment by rainwater is influenced and is damaged.
Shenyang Engine Design ＆ Research Institute, Aviation Industry Corporation of China is in a kind of utility model patent " sensing of application
A kind of biography of environment measuring is disclosed in device protective jacket " (application number 201520722434.2,204944523 U of publication number CN)
Sensor protective jacket.The protective jacket includes leading portion, stage casing and back segment, and leading portion is equipped with sensor mounting hole, sensor mounting hole extension
To the back segment of protective jacket, stage casing connection airflow line, the back segment of protective jacket is placed in connection airflow line, and the back segment of protective jacket is set
There are air admission hole, air admission hole connection sensor mounting hole, which can prevent the direct shock transducer of high-speed flow.But
Shortcoming existing for the protective jacket is：First, the air admission hole on sensor guard set back segment directly connects sensor mounting hole,
Although gas-liquid separation ear can detach gas-liquid mixture, itself does not have drain function, water proofing property existing defects；Secondly,
Protective jacket integrally lacks Shockproof damping structure, and the sensor mounting hole of protective jacket is directly connected to sensor using screw thread, does not have
Damping property.
The utility model patent that 31 photovoltaic Science and Technology Ltd. of Nanjing applies at it be " circuit board containing Temperature Humidity Sensor
It is disclosed in protective cover " (application number 201320742986.0,203563257 U of publication number CN) a kind of containing Temperature Humidity Sensor
The protective cover of circuit board.The protective cover includes upper cover and lower cover, under be placed in the cavity of upper cover, the lower part of upper cover side wall along its
Circumference is equipped with several symmetrically arranged ventilation holes.Circuit board is arranged on the inside of lower cover cavity, and lower cover cavity bottom surface is equipped with to hold and lead
Line by centre bore, conducting wire connect with circuit board, and the gap filling between conducting wire and lower cover centre bore has fluid sealant.The practicality is new
Type has good air permeability, can in the case where ensureing the electronic components such as Temperature Humidity Sensor normal work, reach waterproof,
The effect of depositing dust.But shortcoming existing for the utility model is：First, which uses column structure, by upper
Countersunk head screw on lid sidewall bottom cover rim is fixed on the position specified, and installation is complicated, it is impossible to the adjust automatically of posture is carried out,
It is unfavorable for the quick and long-range dispensing deployment of sensor node；Secondly, lower cover cavity bottom surface be equipped with hold conducting wire by centre bore,
Gap filling fluid sealant between conducting wire and centre bore, the centre bore are located at lower cover cavity bottom surface, and sealing structure is easily by broken
It is bad, rainwater is made to be penetrated into from bottom, water proofing property existing defects.
Invention content
The purpose of the invention is to overcome the above-mentioned problems of the prior art, provide a kind of with small, carrying
The node protective cover of convenient, ventilative, waterproof, shockproof and posture automatic regulating function ZigBee technology environmental monitoring system, with
Solution existing environmental monitoring system equipment cost in effect ground is high, volume is big, water proofing property is poor, shock resistance is poor and is difficult to rapid deployment
Problem.
The present invention concrete thought be：On existing sensor protective shield architecture basics, protective cover is used and up and down may be used
The sphere structure of separation, by the selection to protection cover material and the appropriate connection of internal each component, emphasis is in component
Water guide structure, counterweight cabin and air hole are designed verification, and the protective roof structure after connection is made to can be applied to actual environment
Detection, so as to meet the ventilative of the node protective cover of ZigBee technology environmental monitoring system, waterproof, shockproof and posture adjust automatically
Etc. functions.
To achieve these goals, the present invention includes superstructure, bottom structure and control panel.
The present invention solves the problems, such as that current protective cover does not have shock-absorbing function or damping performance is bad first, solves
Technical solution is used by the technical problem：The Loadings On Hemispherical Shell of superstructure and bottom structure uses silastic material system
Make, half core of superstructure and bottom structure is made of tetrafluoroethene material, and Loadings On Hemispherical Shell is equipped with elastic support, partly
Core is equipped with location hole, episphere housing and upper half core and is joined together to form top knot by elastic support and location hole
Structure, lower semisphere housing are joined together to form substructure with lower half core by elastic support and location hole.
Secondly, it solves the problems, such as water-proof drainage while keeping protective cover internal and external environment consistent, solves the technology and ask
Technical solution is used by topic：The upper half core of protective cover is equipped with external screw thread, and the lower half core of protective cover is equipped with internal thread, prevents
Shield carries out closure connection by the internal and external threads of half core, and the circumferential upper part of upper half core is equipped with small annular groove, small annular groove top
Center be equipped with air hole, the lower part of small annular groove is equipped with big annular groove, uniformly set between two annular grooves four it is vertical
Groove, each vertical trench communicate respectively with big annular groove and small annular groove, and episphere housing is equipped with four strip fenestras, strip window
Hole is intervally arranged with 90 degree between big annular groove and small annular groove on the same circumference.
Finally, it solves the problems, such as that protective cover installation is complicated and posture is unable to adjust automatically, solves the technical problem institute
The technical solution adopted is that：Protective cover uses roly-poly type structure, and bottom structure is set as hemisphere structure, by lower semisphere housing and
Lower half core forms.Lower half core bottom is equipped with counterweight cabin, and superstructure and bottom structure proportion are adjusted by counterweight cabin.Counterweight
Storehouse top is equipped with battery compartment, for place apparatus supplying cell.
The present invention has the following advantages that compared with prior art：
First, since the superstructure and substructure of the present invention is using hemisphere structure, superstructure is by episphere
Core and episphere housing composition, substructure are made of lower half core and lower semisphere housing, and upper and lower hemispheres core passes through internal and external threads
Connection, lower half core bottom are equipped with counterweight cabin, and counterweight cabin uses roly-poly type structure, overcome protective cover use in the prior art
Column structure, installation are complicated, it is impossible to carry out the adjust automatically of posture, be unfavorable for the quick and long-range dispensing deployment of sensor node
The shortcomings that so that the present invention has the advantages that sensor node posture can be adjusted flexibly under natural environment state, is conducive to
The quick and long-range dispensing deployment of sensor node.
Second, since the upper half core of the present invention is using two-stage annular groove and center air through-hole structure, upper half core circumference
Top is equipped with small annular groove, and the center on small annular groove top is equipped with air hole, and the lower part of small annular groove is equipped with big annular groove, two rings
Four vertical trench are uniformly arranged between slot, each vertical trench communicates respectively with big annular groove and small annular groove, episphere housing
Equipped with four strip fenestras, strip fenestra is intervally arranged with 90 degree between big annular groove and small annular groove on the same circumference, is overcome
Protective cover directly connects sensor mounting hole using air admission hole in the prior art, and gas-liquid separation ear do not have drain function, prevents
The shortcomings that aqueous existing defects so that the present invention have the advantages that and meanwhile water-proof drainage with it is ventilative.
Third, since the superstructure and bottom structure of the present invention use shock-damping structure, superstructure and bottom structure
Loadings On Hemispherical Shell made of silastic material, half core of superstructure and bottom structure using the making of tetrafluoroethene material,
Upper and lower hemispheres housing is equipped with elastic support, and upper and lower hemispheres core is equipped with location hole, and it is fixed that upper half core passes through with episphere housing
Position hole links together with elastic support, and lower half core is linked together with lower semisphere housing by location hole and elastic support,
It overcomes protective jacket in the prior art and integrally lacks Shockproof damping structure, the sensor mounting hole of protective jacket is directly connected using screw thread
Sensor is connect, the shortcomings that without damping property so that the present invention has the advantages that damping and reduction shocking damage so that node can
To be shed by aircraft, remotely launch etc. in a manner of rapid deployment.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structure diagram of control panel of the present invention；
Fig. 3 is episphere cored structure schematic diagram of the present invention；
Fig. 4 is episphere housing structure diagram of the present invention；
Fig. 5 is lower semisphere cored structure schematic diagram of the present invention；
Fig. 6 is lower semisphere housing structure diagram of the present invention；
Fig. 7 is the node protective cover installation diagram of ZigBee technology environmental monitoring system of the present invention.
Drawing reference numeral explanation：1 is external screw thread；2 be episphere housing；3 be upper half core；4 be elastic support；5 be small ring
Slot；6 be air hole；7 be big annular groove；8 be internal thread；9 be bottom structure；10 be battery compartment；11 be counterweight cabin；12 be lower half
Core；13 be lower semisphere housing；14 plate pedestals in order to control；15 be Temperature Humidity Sensor；16 be radio-frequency antenna；17 assist for ZigBee
Discuss controller；18 be pressure sensor；19 be vertical trench；20 be location hole；21 be strip fenestra；22 be superstructure；23
Plate in order to control.
Specific embodiment
The present invention is explained in further detail below in conjunction with the accompanying drawings.
With reference to attached drawing 1, the present invention includes superstructure 22, bottom structure 9, control panel 23.Superstructure 22 is hemisphere
Structure is made of episphere housing 2 and upper half core 3.Bottom structure 9 is hemisphere structure, by lower semisphere housing 13 and lower half
Core 12 forms.Control panel 23 includes Zigbee protocol controller 17, Temperature Humidity Sensor 15, pressure sensor 18, radio frequency day
Line 16.Upper half core 3 is connected with lower half core 12 by external screw thread 1 with internal thread 8.
With reference to attached drawing 2, the Zigbee protocol chip 17 and Temperature Humidity Sensor 15, pressure sensor 18 on control panel 23 are logical
Cross I/O port connection.Antenna 16 is connect with the RF modules integrated on Zigbee protocol chip 17.Control panel 23 is using round domain knot
Structure is spaced in control panel 23 edge designs, 3 mounting-positioning holes 20 with 120 degree, and each location hole (20) passes through lower hemisphere shell
The fixed control panel (23) of the corresponding elastic support (4) of body (13).
With reference to attached drawing 3,3 circumferential upper part of upper half core is equipped with small annular groove 5, and the lower part of small annular groove 5 is equipped with big annular groove 7.Upper half
Core 3 is uniformly arranged four vertical trench 19 between two annular grooves, each vertical trench (19) respectively with big annular groove 7 and small
Annular groove 5 communicates.The structure can effectively prevent rainwater to enter in protection body, it is ensured that the safe and reliable work of monitoring system.Upper half
The center of core 3 is equipped with air hole 6, can be consistent protective cover internal and external environment, play permeation functions.Episphere
Core 3 is set there are three location hole 20, and elastic support 4 corresponding with episphere housing 2 connects each location hole 20 respectively, Neng Gouqi
To fixed upper half core 3 and cushioning effect.Upper half core 3 is made of tetrafluoroethene material, can be mitigated protective cover and integrally be weighed
Amount, while there is cushioning effect.
With reference to attached drawing 4, episphere housing 2 is equipped with four strip fenestras 21, and strip fenestra 21 is on the same circumference with 90 degree
It is intervally arranged between big annular groove 7 and small annular groove 5.The big annular groove 7, small annular groove 5 and air hole 6 of the structure and upper half core
It cooperates, can make protective cover that there is gas permeability, meanwhile, protective cover can be guided water via strip window by big annular groove 7
Hole 21 is discharged, and protective cover is made to have water proofing property.Upper hemispherical shell is made of silastic material, and upper hemispherical shell is made to have certain resist
Vibration resistance.
With reference to attached drawing 5, location hole 20 is used for fixing lower half core 12 and control panel 23 in lower half core 12；Lower half core 12
Internal thread 8 connect and connect with external screw thread 1；Control panel pedestal 14 is used to place circuit board.Counterweight cabin 11 is designed using roly-poly type,
By being equipped with weight in counterweight cabin 11, make bottom structure 9 below, superstructure 22 is above, the component face of control panel 23
Always upwards, entire sphere posture can realize adjust automatically.11 top of counterweight cabin is equipped with battery compartment 10, can be in battery compartment 10
Plate 23 provides power supply to placing battery in order to control.Lower half core is made of tetrafluoroethene material.
With reference to attached drawing 6, lower semisphere housing 13 sets that there are three elastic support 4, three elastic supports 4 and the three of lower half core 12
A location hole 20 is connected, for fixing lower half core 12 and control panel 23.Lower semisphere housing is made of silastic material.
With reference to attached drawing 7, control panel 23 is placed in lower half core 12, passes through location hole 20 between half core and Loadings On Hemispherical Shell
Hemisphere is joined together to form with elastic support 4, reaches good mating connection and reduction effect of vibration.Between two halves sphere
Sphere is joined together to form by external screw thread 1 and internal thread 8.
The above is only one embodiment of the present of invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and the equivalent structure that technical spirit makees above example change, and still fall within skill of the present invention
In the protection domain of art scheme.
Claims (4)
1. a kind of node protective cover of ZigBee technology environmental monitoring system, including superstructure (22), bottom structure (9), control
Making sheet (23)；It is characterized in that, the superstructure (22) is hemisphere structure, by episphere housing (2) and upper half core
(3) it forms；The bottom structure (9) is hemisphere structure, is made of lower semisphere housing (13) and lower half core (12)；It is described
Control panel (23) include Zigbee protocol controller (17), Temperature Humidity Sensor (15), pressure sensor (18), radio-frequency antenna
(16)；The upper half core (3) is connect by external screw thread (1) with lower half core (12), and upper half core (3) circumferential upper part is equipped with
Small annular groove (5), small annular groove (5) central upper portion position are equipped with air hole (6), and the lower part of small annular groove (5) is equipped with big annular groove (7)；
Upper half core (3) is uniformly arranged four vertical trench (19) between two annular grooves, each vertical trench (19) respectively with greatly
Annular groove (7) and small annular groove (5) communicate；The episphere housing (2) exists equipped with four strip fenestras (21), strip fenestra (21)
It is intervally arranged between big annular groove (7) and small annular groove (5) with 90 degree on same circumference；The lower half core (12) passes through interior spiral shell
Line (8) is connect with upper half core (3), and lower half core bottom is equipped with counterweight cabin (11)；The counterweight cabin (11) is using tumbler
Formula structure, counterweight cabin (11) top are equipped with battery compartment (10)；Described internal thread (8) bottom is equipped with control panel pedestal (14)；Institute
Pass through lower half on the circumference of control panel (23) stated with 120 degree of spaced design, 3 location holes (20), each location hole (20)
The fixed control panel (23) of the corresponding elastic support (4) of global shell (13).
A kind of 2. node protective cover of ZigBee technology environmental monitoring system according to claim 1, which is characterized in that institute
The upper half core (3) stated passes through 3 equally distributed location holes (20), 3 elastic supports corresponding on episphere housing (2)
(4) it docks；Lower half core (12) passes through 3 equally distributed location holes (20), 3 bullets corresponding on lower semisphere housing (13)
Property pillar (4) dock, form two hemispheres.
A kind of 3. node protective cover of ZigBee technology environmental monitoring system according to claim 1, which is characterized in that institute
The control panel (23) stated is arranged on the control panel pedestal (14) of lower half core (12), with 120 degree on the circumference of control panel (23)
3 location holes (20) of spaced design, each location hole (20) is solid by lower semisphere housing (13) corresponding elastic support (4)
Determine control panel (23).
A kind of 4. node protective cover of ZigBee technology environmental monitoring system according to claim 1, which is characterized in that institute
The counterweight cabin (11) stated refers to that bottom structure (9) is hemisphere, is matched in the bottom of bottom structure (9) using roly-poly type structure
To add the counterweight cabin of weight (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566178.1A CN106052736B (en) | 2016-07-18 | 2016-07-18 | The node protective cover of ZigBee technology environmental monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566178.1A CN106052736B (en) | 2016-07-18 | 2016-07-18 | The node protective cover of ZigBee technology environmental monitoring system |
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| Publication Number | Publication Date |
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| CN106052736A CN106052736A (en) | 2016-10-26 |
| CN106052736B true CN106052736B (en) | 2018-06-26 |
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| CN201610566178.1A Active CN106052736B (en) | 2016-07-18 | 2016-07-18 | The node protective cover of ZigBee technology environmental monitoring system |
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| CN112730749A (en) * | 2020-12-28 | 2021-04-30 | 深圳市安帕尔科技有限公司 | Probe safety cover |
| CN114001699B (en) * | 2021-12-31 | 2022-04-12 | 中国化学工程第十三建设有限公司 | Real estate building area measuring device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100477737C (en) * | 2007-10-10 | 2009-04-08 | 北京博创兴盛机器人技术有限公司 | Scouting robotic ball |
| CN101742108A (en) * | 2010-01-15 | 2010-06-16 | 邱新生 | Spherical security monitoring device |
| CN202501862U (en) * | 2012-03-31 | 2012-10-24 | 珠海格力电器股份有限公司 | Box body of detection device and detection device |
| CN103152841A (en) * | 2013-03-08 | 2013-06-12 | 中国矿业大学 | Wireless sensor node buffering protector |
| CN203563257U (en) * | 2013-11-22 | 2014-04-23 | 南京三一光伏科技有限公司 | Protective cover with humiture sensor circuit board |
| CN203811162U (en) * | 2014-04-29 | 2014-09-03 | 广州精勘测绘科技有限公司 | Depth finder |
| CN204217265U (en) * | 2014-12-02 | 2015-03-18 | 温州冲亚电子科技有限公司 | A kind of attaching type multiaspect sensing terminal |
| CN204944523U (en) * | 2015-09-18 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of sensor guard cover |
| EP3018472A1 (en) * | 2014-10-29 | 2016-05-11 | Siemens Schweiz AG | Cover for a duct sensor |
| CN205861084U (en) * | 2016-07-18 | 2017-01-04 | 西安电子科技大学 | A kind of node protective cover of ZigBee technology environmental monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050242933A1 (en) * | 2004-04-28 | 2005-11-03 | Ko-Chin Loh | Sensor assembly |
-
2016
- 2016-07-18 CN CN201610566178.1A patent/CN106052736B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100477737C (en) * | 2007-10-10 | 2009-04-08 | 北京博创兴盛机器人技术有限公司 | Scouting robotic ball |
| CN101742108A (en) * | 2010-01-15 | 2010-06-16 | 邱新生 | Spherical security monitoring device |
| CN202501862U (en) * | 2012-03-31 | 2012-10-24 | 珠海格力电器股份有限公司 | Box body of detection device and detection device |
| CN103152841A (en) * | 2013-03-08 | 2013-06-12 | 中国矿业大学 | Wireless sensor node buffering protector |
| CN203563257U (en) * | 2013-11-22 | 2014-04-23 | 南京三一光伏科技有限公司 | Protective cover with humiture sensor circuit board |
| CN203811162U (en) * | 2014-04-29 | 2014-09-03 | 广州精勘测绘科技有限公司 | Depth finder |
| EP3018472A1 (en) * | 2014-10-29 | 2016-05-11 | Siemens Schweiz AG | Cover for a duct sensor |
| CN204217265U (en) * | 2014-12-02 | 2015-03-18 | 温州冲亚电子科技有限公司 | A kind of attaching type multiaspect sensing terminal |
| CN204944523U (en) * | 2015-09-18 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of sensor guard cover |
| CN205861084U (en) * | 2016-07-18 | 2017-01-04 | 西安电子科技大学 | A kind of node protective cover of ZigBee technology environmental monitoring system |
Non-Patent Citations (1)
| Title |
|---|
| 数字气象仪温湿度防护罩的设计与试验;阮学诚;《技术交流》;19800615;第50-53页 * |
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