CN105136229A - Smart home high-reliability data collecting system based on ZigBee - Google Patents
Smart home high-reliability data collecting system based on ZigBee Download PDFInfo
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- CN105136229A CN105136229A CN201510578089.4A CN201510578089A CN105136229A CN 105136229 A CN105136229 A CN 105136229A CN 201510578089 A CN201510578089 A CN 201510578089A CN 105136229 A CN105136229 A CN 105136229A
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Abstract
The invention discloses a smart home high-reliability data collecting system based on ZigBee and belongs to data collecting systems in the smart home technical field. The smart home high-reliability data collecting system based on the ZigBee aims at being higher in reliability and real-time performance. According to the technical scheme, the smart home high-reliability data collecting system comprises a water meter box, a water meter, a ZigBee wireless communication module, a ZigBee route module, a ZigBee coordinator, a GPRS module and a central processor. A water meter sensor in the water meter transmits water quantity data information collected by the water meter sensor to the ZigBee coordinator through the ZigBee wireless communication module and the ZigBee route module in sequence, and the ZigBee coordinator transmits the received water quantity data information to the central processor through the GPRS module via a GPRS network. The smart home high-reliability data collecting system is suitable for smart homes.
Description
Technical field
The invention belongs to Smart Home technical field, relate to a kind of for the data of water meter acquisition system in Smart Home, particularly relate to a kind of for Smart Home and based on the data of water meter acquisition system of ZigBee.
Background technology
Along with the development of modernization science and technology, in Smart Home, new requirement be it is also proposed to the meter reading method of water meter, namely require in Smart Home that the meter reading method of water meter and water meter has higher reliability, real-time and convenient data processing, need fundamentally solve existing register one's residence check meter, the trouble brought to user and meter reading personnel of charging, improve the meter reading efficiency to water meter.In addition, all there is the problems such as the data transmission distance of kilowatt meter reading-out system is short, penetration capacity is poor, communication bit error rates is high in existing kilowatt meter reading-out system, add that the wall of buildings makes the signal fading badly of kilowatt meter reading-out system, data can not be transmitted in time, exactly mostly.
In addition, water meter is as a kind of metering outfit of tap water, and the discharge that they are generally used for flowing through water meter is measured.The water inlet pipe of the water meter used in prior art, rising pipe are all perpendicular to the outside surface of water meter body, and the center line of water inlet pipe, rising pipe overlaps with the center line of water meter transverse section circle.But, adopt the water meter of this structure less to the impeller impulsive force in water meter body, when particularly discharge is less, can not impacts or effectively can not impact impeller and impeller is rotated, have a strong impact on the degree of accuracy of water meter.
Summary of the invention
Goal of the invention of the present invention is: for prior art Problems existing, a kind of Smart Home High Reliable Data Collecting System based on ZigBee with higher reliability and real-time is provided, by setting up pressure regulator valve in water inlet pipe, outflow water inlet pipe is made to enter the pressure of the discharge of water meter body larger, can effectively impact impeller and promote wheel rotation, improve the degree of accuracy of water meter.
To achieve these goals, the technical solution used in the present invention is:
Based on a Smart Home High Reliable Data Collecting System of ZigBee, comprise water meter casing, water meter, ZigBee wireless communication module, ZigBee routing module, ZigBee telegon, GPRS module and central processing unit, described water meter is connected in water meter casing, and described water meter casing comprises the casing of the cylindrical shape of hollow, is provided with the projection of a loop in described casing, and the bottom of described projection extends outward the boss for blocking water meter of semi-circular shape, described water meter comprises water meter body, the water inlet pipe be all connected with water meter body and rising pipe, and described water inlet pipe and rising pipe are all tangent with water meter body, be provided with water meter turbine in described water meter body, the blade of described water meter turbine is curved surface bucket, described water inlet pipe is provided with pressure regulator valve, described pressure regulator valve comprises valve body, described valve body offers the water inlet flow channel with the inner space of valve body along the axis of valve body, spool is provided with successively outward by interior in the inner chamber of described valve body, plug screw, described valve body end is connected with plug, the plug component that can move axially along valve body is also provided with in the inner chamber of described valve body, described plug component is between water inlet flow channel and spool, described spool comprises the outer spool of hollow form, be nested in spool in can moving axially along outer spool in outer spool, outer spool, middle spool offers the outer core round of through hole shape near one end one_to_one corresponding of plug screw, the SMIS round of through hole shape, the sectional area of outer core round is greater than the sectional area of SMIS round, under nested condition, outer core round is connected with SMIS round, be provided with the second spring between middle spool and plug component, the outer spool other end is connected with plug screw, is provided with the 3rd spring between the middle spool other end and plug screw, sensor of water meter in described water meter is electrically connected with ZigBee wireless communication module, described ZigBee wireless communication module is electrically connected with ZigBee routing module, described ZigBee routing module is electrically connected with ZigBee telegon, described ZigBee telegon is electrically connected with GPRS module, and described GPRS module is connected with central processing unit by GPRS network.
As preferred version of the present invention, described cabinet exterior is provided with one deck titanium dioxide plasma sprayed coating, and the bottom margin of described casing is protruding laterally and form step on box outer surface.
As preferred version of the present invention, described blade comprises inner concave arc surface and outer convex globoidal, and described inner concave arc surface is Cylinder Surface, described outer convex globoidal parabolic surface.
As preferred version of the present invention, described plug component offers bulb and place groove, described bulb is placed in groove and is placed with rubber bulb, and described rubber bulb and bulb are placed between bottom portion of groove and be provided with fine setting spring.
As preferred version of the present invention, the outline of described outer spool is divided into from down to up: lower valve face, middle valve face, upper valve face, on the longitudinal section passing through outer center spool axis, the shape of lower valve face is inside diminishing arcuation para-curve from top to bottom, the shape of middle valve face is straight line, and the shape of upper valve face is the arcuation para-curve outwards increased gradually from top to bottom.
As preferred version of the present invention, the inside surface of described water meter body and the outside surface of water meter turbine are all piled and are welded with high-chromium alloy wearing layer.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
In the present invention, sensor of water meter in water meter is for gathering the water yield data message of respective user, and water yield data message is delivered to ZigBee wireless communication module, ZigBee routing module is delivered to ZigBee telegon, the water yield data message that receives is transferred to central processing unit by GPRS module with GPRS network by ZigBee telegon, central processing unit is sending corresponding control command according to systemic presupposition, user's setting or status information, thus improves the real-time of data acquisition system (DAS) and the reliability of meter reading data.
The present invention also arranges pressure regulator valve on water inlet pipe, the pressure of the discharge of water inlet pipe is gone out by this pressure regulator valve controllable flow, because the discharge flowing out water inlet pipe has certain pressure intensity, discharge enough impeller when impacting impeller thus with certain pressure intensity are rotated, thus improve the degree of accuracy of water meter.
In addition, this pressure regulator valve possesses multi-buffer pressure relief and pressure release security is higher, and the pressure leak process of water inlet flow channel is stable, fast and be applicable to large discharge pipeline.Spool is made up of outer spool and middle spool, and when the pressure in water inlet flow channel is less, water is discharged by the SMIS round of middle spool; When the hydraulic pressure of water inlet flow channel is larger, water is arranged outward by SMIS round and the mistake water flow passage between middle spool and outer spool, and whole safety valve pressure leak process good stability, controllability are strong.In addition, change the linear contact lay between the end face of plug component and the end face in water inlet flow channel exit into face when safety valve cuts out and contact, improve the contact area between valve body and plug component when safety valve cuts out, improve sealing property between the two, not easily reveal; When safety valve is opened, under identical fluid pressure, amount of spring compression is identical, and the flow flowing through water-in and water-out runner in the unit interval is larger, thus shortens the drain time of liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of water meter turbine in the present invention;
Fig. 3 is the structural representation of pressure regulator valve in the present invention;
Fig. 4 is the partial enlarged drawing of Fig. 3 at I place;
Fig. 5 is the constitutional diagram of Fig. 3 when hydraulic pressure is less in water inlet flow channel;
Fig. 6 is the constitutional diagram of Fig. 3 when hydraulic pressure is larger in water inlet flow channel;
Fig. 7 is the partial enlarged drawing of rubber bulb and valve body junction in the present invention;
Fig. 8 is the structural representation of water meter casing in the present invention;
Fig. 9 is structured flowchart of the present invention;
Wherein, Reference numeral is: 1-water meter body, 2-water meter turbine, 3-water inlet pipe, 4-rising pipe, 5-pressure regulator valve, 6-blade, 71-casing, 72-protruding, 73-boss, 74-step, 61-inner concave arc surface, 62-outer convex globoidal, 51-valve body, 52-rubber bulb, 53-plug component, 54-the second spring, 56-the second outlet passage, 57-outer spool, 58-middle spool, 59-bulb places groove, 510-the three spring, 511-the three outlet passage, 512-plug screw, 513-O-ring seal, 514-plug, 515-water inlet flow channel, 516-the first outlet passage, 517-outer core round, 518-damping hole, 519-SMIS round, 520-the four outlet passage, 524-fine setting spring, 525-spherical water delivering orifice, 571-lower valve face, 572-middle valve face, 573-upper valve face.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1
Based on a Smart Home High Reliable Data Collecting System of ZigBee, this data of water meter acquisition system can realize the work of checking meter of the water meter of even multiple residential quarters, residential quarters.This data of water meter acquisition system comprises water meter casing, water meter, ZigBee wireless communication module, ZigBee routing module, ZigBee telegon, GPRS module and central processing unit.This water meter is installed in the man of resident family of community by water meter casing 7, i.e. single household one gas box one water meter.Each water meter correspondence arranges a ZigBee wireless communication module or multiple water meter correspondence arranges a ZigBee wireless communication module.Each ZigBee wireless communication module may correspond to and arranges a ZigBee routing module or multiple ZigBee wireless communication module correspondence arranges a ZigBee routing module.Each ZigBee routing module may correspond to and arranges a ZigBee telegon or multiple ZigBee routing module correspondence arranges a ZigBee telegon.Each ZigBee telegon may correspond to and arranges a GPRS module, a corresponding central processing unit of GPRS module.
This water meter casing comprises the casing 71 of the cylindrical shape of hollow, the projection 72 of a loop is provided with in casing 71, the bottom of this projection 72 extends outward the boss 73 for blocking water meter of semi-circular shape, this projection 72 can prop up water meter and support water meter, this boss 73 can block water meter, is that water meter can not produce and rocks in casing 71.The bottom margin of casing 71 is protruding laterally and form step 74 on the outside surface of casing 71, and this step 74 effectively can ensure the steadiness of the installation of casing 71 when installing casing 71.In addition; the outer wall of this casing 71 is also provided with one deck titanium dioxide plasma sprayed coating; this titanium dioxide plasma sprayed coating has the feature of good anticorrosion, antioxidation; greatly increase the corrosion resistivity of water meter casing; water meter in available protecting water meter casing and water meter casing, thus the serviceable life extending the water meter in water meter casing and water meter casing.
This water meter comprises water meter body, water meter body is connected with water inlet pipe and rising pipe, and this water inlet pipe and rising pipe are all tangent with water meter body, water inlet pipe and rising pipe all with the inner space of water meter body.Thus, water is via tangentially entering in water meter body along water meter body after water inlet pipe, and the water tangentially flow to can directly act on the water meter turbine in water meter body and promote water meter turbine and rotate, and improves water to the action effect of water meter turbine; Water in water meter body tangentially enters rising pipe along water meter body, is convenient to the discharge of water in water meter body.Be provided with water meter turbine in this water meter body, the blade of this water meter turbine is curved surface bucket, and this curved surface bucket comprises inner concave arc surface and outer convex globoidal, and inner concave arc surface is Cylinder Surface, and outer convex globoidal is parabolic surface.The water flowed out from water inlet pipe directly impacts on inner concave arc surface, promotes water meter turbine and rotates.The overhanging end of inner concave arc surface and the overhanging end of outer convex globoidal intersect at a summit cambered surface jointly, and summit cambered surface matches with the footpath, water meter measurement chamber of water meter body.
Water inlet pipe is also provided with pressure regulator valve, this pressure regulator valve comprises valve body 51, plug component 53, spool and plug screw 512 is provided with in valve body 51, plug component 53, spool and plug screw 512 is arranged outward by interior successively in the inner chamber of valve body 51, valve body 51 one end offers water inlet flow channel 515, this water inlet flow channel 515 and valve body 51 inner space, valve body 51 other end has been threaded plug 514, is enclosed in the inner chamber of valve body 51 by plug component 53, spool and plug screw 512 by plug 514.Plug component 53 is positioned at the inner chamber of valve body 51 and can moves around along the axis of valve body 51 inner chamber, when the hydraulic pressure in water inlet flow channel 515 exceedes a certain value time, promotion plug component 53 outwards moves along the axis of valve body 51 inner chamber by the acting force that hydraulic pressure acts on plug component 53, thus between the end face and the end face of water inlet flow channel 515 water outlet of plug component 53, forms the mistake water flow passage supplying water and circulate.Plug component 53 offers some first outlet passages 516 along its circumference, and the axis of some first outlet passages 516 be parallel to each other and all with the axis being parallel of plug component 53.Spool comprises outer spool 57, the middle spool 58 of hollow form, middle spool 58 to be nested in outer spool 57 and can to move axially along outer spool 57, outer spool 57 offers the second outlet passage 56 near the side of plug component 53, and the mistake water flow passage formed between the inwall of the outline of this second outlet passage 56 and outer spool 57, valve body 51 is communicated with.Outer spool 57, middle spool 58 near the end of plug screw 512 for being horn-like structure, and the horn-like structure position of outer spool 57 offers outer core round 517, the horn-like structure position of middle spool 58 offers SMIS round 519, and outer core round 517 and SMIS round 519 coaxial cable and the sectional area of outer core round 517 are greater than the sectional area of SMIS round 519.Under nested condition, the horn-like structure position of outer spool 57 envelopes the horn-like structure position of middle spool 58, and outer core round 517 is connected with SMIS round 519; When hydraulic pressure increases to a certain degree, the horn-like structure position of outer spool 57 and the horn-like structure position of middle spool 58 depart from mutually.Middle spool 58 two ends respectively correspondence are provided with the second spring 54, the 3rd spring 510, second spring 54 between middle spool 58 and plug component 53, and the 3rd spring 510 is between middle spool 58 and plug screw 512.The mode that plug screw 512 is threaded connection is installed in the inner chamber of valve body 51, and the mode that plug 514 is also threaded connection is installed on the end of valve body 51.Plug screw 512 offers the 3rd outlet passage 511, plug 514 offers the 4th outlet passage 520, when the end face of plug component 53 and the end face of water inlet flow channel 515 water outlet depart from, water inlet flow channel 515, first outlet passage 516, second outlet passage 56, the 3rd outlet passage 511 are communicated with the mistake water flow passage forming drainage with the 4th outlet passage 520.In addition, the surface of contact that valve body 51 and plug 514 contact with each other also is provided with O-ring seal 513.The surface of contact that the end face of valve body 51 and the end face of plug 514 contact with each other also is provided with O-ring seal 513, can further improve the sealing property of safety valve, prevent leak of liquid.
In the present invention, the principle of work of pressure regulator valve is: when in the water inlet flow channel 515 of valve body 51, pressure is larger, promote plug component 53 to move, thus form sluice at plug component 53 and the water outlet of water inlet flow channel 515, outside water enters in the inner chamber of valve body 51 via water inlet flow channel 515, sluice, and is finally discharged by outer core round 517, SMIS round 519, aperture due to outer core round 517 is greater than the aperture of SMIS round 519, thus certain at the flow via the outer row of SMIS round 519, when the flow of inlet water of the water inlet flow channel 515 of valve body 51 is greater than the drain discharge of the outer row of SMIS round 519, pressure in valve body 51 inner chamber will increase gradually, and promote plug component 53 continuation motion, when pressure increase is to certain value, the elastic force of the 3rd spring 510 is less than hydraulic pressure, during the acting force of the second spring 54 centering spool 58, middle spool 58 is by the lateral movement be forced near plug screw 512, make middle spool 58, outer spool 57 is at SMIS round 519, outer core round 517 place is separated formation second sluice, thus increase the transverse drainage sectional area of spool, improve the drain discharge of spool.
Sensor of water meter in described water meter is electrically connected with the ZigBee wireless communication module in kilowatt meter reading-out system, and the water yield data message after encryption is delivered to ZigBee wireless communication module.The water yield data message of user can be delivered to ZigBee telegon by ZigBee routing module by ZigBee wireless communication module successively, the water yield data message that receives is transferred to central processing unit by GPRS module with GPRS network by ZigBee telegon, central processing unit is sending corresponding control command according to systemic presupposition, user's setting or status information, thus improves the real-time of data acquisition system (DAS) and the reliability of meter reading data.In addition, also deciphering module can be set between GPRS module and central processing unit, water yield data message after the encryption that can be sent GPRS module by this deciphering module is deciphered automatically, and by the water yield data information transfer after deciphering to central processing unit, thus facilitating the water yield data message of receiving end, the water yield data message avoiding the water meter of user is arbitrarily tackled by people and reading information and then reveal the problem of user profile.
embodiment 2
On the basis of embodiment one, plug component 53 offers on the end face of water inlet flow channel 515 side bulb and place groove 59, this bulb is placed in groove 59 and is provided with rubber bulb 52, and rubber bulb 52 can be placed in groove 59 at bulb and freely rotate; Rubber bulb 52 and bulb are also provided with between placing bottom groove 59 and finely tune spring 524, rubber bulb 52 can according to the flatness of water inlet flow channel 515 distal end faces and adaptively modifying position, inclination angle under the effect of fine setting spring 524, the end face of rubber bulb 52 is fully contacted with water inlet flow channel 515 distal end faces, improves the sealing property of contact site.
As preferably, water inlet flow channel 515 end is provided with spherical water delivering orifice 525 near the side of plug component 53, the radius-of-curvature of this spherical water delivering orifice 525 and the radius of rubber bulb 52 suitable.
embodiment 3
On the basis of embodiment one or embodiment two, SMIS round 519 inside is provided with damping hole 518, damping hole 518 draining aperture be less than the aperture of SMIS round 519, thus when in water inlet flow channel 515, hydraulic pressure is less, water is discharged by damping hole 518, and due to the xsect of damping hole 518 less, the flow that water in water inlet flow channel 515 is arranged outward is less, hydraulic pressure in water inlet flow channel 515 increases faster, thus can make middle spool 58 with outer spool 57 at round place quick separating, pressure release is accelerated in raising.
embodiment 4
On the basis of above-described embodiment, the outline of outer spool 57 is divided into from down to up: lower valve face 571, middle valve face 572, upper valve face 573, on the longitudinal section passing through outer spool 57 central axis, the shape of lower valve face 571 is inside diminishing arcuation para-curve from top to bottom, the shape of middle valve face 572 is straight line and the length of middle valve face 572 is 100 to 400mm, and the shape of upper valve face 573 is the arcuation para-curve outwards increased gradually from top to bottom.For make water flow in runner more smooth and easy, reduce vibration, be easy to outer row, the degree that lower valve face 571 externally tilts is less than the degree that valve face 573 externally tilts.
embodiment 5
On the basis of above-described embodiment, the outside surface of valve body 51 inside surface and outer spool 57 is all piled and is welded with high-chromium alloy wearing layer, and the thickness of built-up welding depends on the needs.
In the chemical composition of high-chromium alloy wearing layer carbon content reach 4 to 5%, chromium content up to 25 to 30%, in its metallographic structure, the volume fraction of Cr7C3 carbonide reaches more than 50%, and macrohardness is HRC56 to 62, and the hardness of chromium carbide is HV1400 to 1800.Because carbonide is formed in the perpendicular distribution of wear direction, even if compare with the casting alloy of hardness with congruent, anti-wear performance is enhanced about more than once, and has good resistance to impact, can bear impact and wearing and tearing that High-Pressure Water causes.In addition, high-chromium alloy wearing layer contains the crome metal of high number percent, therefore makes the outside surface of valve body 51 inside surface and outer spool 57 all have necessarily antirust and corrosion resistance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. based on a Smart Home High Reliable Data Collecting System of ZigBee, it is characterized in that: comprise water meter casing, water meter, ZigBee wireless communication module, ZigBee routing module, ZigBee telegon, GPRS module and central processing unit, described water meter is connected in water meter casing, described water meter casing comprises the casing (71) of the cylindrical shape of hollow, be provided with the projection (72) of a loop in described casing (71), the bottom of described projection (72) extends outward the boss (73) for blocking water meter of semi-circular shape, described water meter comprises water meter body (1), the water inlet pipe (3) be connected with water meter body (1) and rising pipe (4), and described water inlet pipe (3) and rising pipe (4) are all tangent with water meter body (1), be provided with water meter turbine (2) in described water meter body (1), the blade (6) of described water meter turbine (2) is curved surface bucket (6), described water inlet pipe (3) is provided with pressure regulator valve (5), described pressure regulator valve (5) comprises valve body (51), described valve body (51) offers the water inlet flow channel (515) with the inner space of valve body (51) along the axis of valve body (51), spool is provided with successively outward by interior in the inner chamber of described valve body (51), plug screw (512), described valve body (51) end is connected with plug (514), the plug component (53) that can move axially along valve body (51) is also provided with in the inner chamber of described valve body (51), described plug component (53) is positioned between water inlet flow channel (515) and spool, described spool comprises the outer spool (57) of hollow form, be nested in the middle spool (58) that can move axially along outer spool (57) in outer spool (57), outer spool (57), the upper one end one_to_one corresponding near plug screw (512) of middle spool (58) offers the outer core round (517) of through hole shape, the SMIS round (519) of through hole shape, the sectional area of outer core round (517) is greater than the sectional area of SMIS round (519), under nested condition, outer core round (517) is connected with SMIS round (519), be provided with the second spring (54) between middle spool (58) and plug component (53), outer spool (57) other end is connected with plug screw (512), is provided with the 3rd spring (510) between middle spool (58) other end and plug screw (512), sensor of water meter in described water meter is electrically connected with ZigBee wireless communication module, described ZigBee wireless communication module is electrically connected with ZigBee routing module, described ZigBee routing module is electrically connected with ZigBee telegon, described ZigBee telegon is electrically connected with GPRS module, and described GPRS module is connected with central processing unit by GPRS network.
2. a kind of Smart Home High Reliable Data Collecting System based on ZigBee as claimed in claim 1, it is characterized in that: described casing (71) outer wall is provided with one deck titanium dioxide plasma sprayed coating, the bottom margin of described casing (71) is protruding laterally and form step (74) on casing (71) outside surface.
3. a kind of Smart Home High Reliable Data Collecting System based on ZigBee as claimed in claim 1, it is characterized in that: described blade (6) comprises inner concave arc surface (61) and outer convex globoidal (62), described inner concave arc surface (61) is Cylinder Surface, described outer convex globoidal (62) parabolic surface.
4. a kind of Smart Home High Reliable Data Collecting System based on ZigBee as claimed in claim 1, it is characterized in that: described plug component (3) offers bulb and place groove (9), described bulb is placed in groove (9) and is placed with rubber bulb (2), and described rubber bulb (2) and bulb are provided with between placing bottom groove (9) and finely tune spring (24).
5. a kind of Smart Home High Reliable Data Collecting System based on ZigBee as described in claim 1 or 4, it is characterized in that: the outline of described outer spool (57) is divided into from down to up: lower valve face (571), middle valve face (572), upper valve face (573), on the longitudinal section passing through outer spool (57) central axis, the shape of lower valve face (571) is inside diminishing arcuation para-curve from top to bottom, the shape of middle valve face (572) is straight line, and the shape of upper valve face (573) is the arcuation para-curve outwards increased gradually from top to bottom.
6. a kind of Smart Home High Reliable Data Collecting System based on ZigBee as claimed in claim 1, is characterized in that: the inside surface of described water meter body (1) and the outside surface of water meter turbine (2) are all piled and be welded with high-chromium alloy wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578089.4A CN105136229A (en) | 2015-09-11 | 2015-09-11 | Smart home high-reliability data collecting system based on ZigBee |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578089.4A CN105136229A (en) | 2015-09-11 | 2015-09-11 | Smart home high-reliability data collecting system based on ZigBee |
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| CN105136229A true CN105136229A (en) | 2015-12-09 |
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| CN201510578089.4A Pending CN105136229A (en) | 2015-09-11 | 2015-09-11 | Smart home high-reliability data collecting system based on ZigBee |
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