CN204697309U - Outdoor non-maintaining multifunction wireless senser network gateway - Google Patents
Outdoor non-maintaining multifunction wireless senser network gateway Download PDFInfo
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- CN204697309U CN204697309U CN201520244897.2U CN201520244897U CN204697309U CN 204697309 U CN204697309 U CN 204697309U CN 201520244897 U CN201520244897 U CN 201520244897U CN 204697309 U CN204697309 U CN 204697309U
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Abstract
The utility model discloses a kind of outdoor non-maintaining multifunction wireless senser network gateway, it comprises radio frequency and microprocessor, for collecting the image data with processes sensor node, receiving and issuing host computer instruction; Treated data are sent to remote data center by GPRS module, send instructions under gateway and node; Treated data are sent to local data center by WIFI module and serial communication modular; Energy management module, is responsible for the power supply of modules, electric power detection and power supply smart and controls; Memory module, carries out real-time storage to wireless sensor network gateway data.The utility model achieves the non-maintaining of gateway and wild environment long-term stable operation, and particularly suitable needs to arrange net on a large scale, the wireless sensor network worked long hours under wild environment.
Description
Technical field
The utility model relates to wireless sensor network field, particularly needs to arrange net on a large scale, the wireless sensor network worked long hours under wild environment.
Background technology
Wireless sensor network (WSN) gateway is by being distributed in the node image data in scene, then according to the agreement specified in advance, field data is sent to gateway node by the mode of single-hop or multi-hop ad hoc, gateway node passes to Surveillance center again, and numerous node cooperative work is to complete the data acquisition of this network coverage.In situation of arranging net on a large scale, increasing of node, jumping figure, the sharply increase of power consumption and traffic load, can bring very large unsteadiness to network; In addition, much need the distance between the region of deployment WSN and wired IP networks far, it is very unpractical for only relying on wireless multi-hop or Mesh to arrive, and the WSN number of plies increases the increase of the transmission delay brought, and makes multilayer WSN be difficult to process real-time monitor message.
For these problems, main research at present concentrates on the aspects such as Routing Protocol, time synchronized strategy, cross layer design, load balancing, but these researchs temporarily also do not obtain important breakthrough for problem of arranging net on a large scale.GPRS technology has some to apply in the WSN of water meter, ammeter and single node.Unfortunately, these applications are still very narrow, and volume of transmitted data is also smaller, not yet really play the potentiality that GPRS and WSN combines.
Utility model content
In order to solve the deficiency that prior art exists, the purpose of this utility model is used for solving the problem, by the research to WSN and wireless communication technology, invented a kind of towards open air non-maintaining WSN gateway, arrange net on a large scale in particular to needs, the wireless sensor network worked long hours under wild environment.
A kind of wireless sensor network gateway that the utility model proposes comprises: radio frequency and microprocessor module, memory module, GPRS module, WIFI module, serial communication modular and energy management module, wherein:
The image data that described radio frequency and microprocessor are used for sending for sensor node carries out collecting and processing, and receives host computer instruction and is handed down to sensing node;
Described GPRS module is connected with described radio frequency and microprocessor, for the data after described radio frequency and microprocessor processes are sent to remote data center, is sent instructions under gateway and node by remote data center and GPRS network;
Described WIFI module is connected with described radio frequency and microprocessor with serial communication modular, for the data after described radio frequency and microprocessor processes are sent to local data center;
Described energy management module is connected with radio frequency and microprocessor module, memory module, GPRS module, WIFI module and serial communication modular, controls for the power supply of responsible modules, electric power detection and power supply smart;
Described memory module adopts SPI communication mode to be connected with radio frequency and microprocessor module, for carrying out real-time storage for wireless sensor network gateway data.
Alternatively, described radio frequency and microprocessor module are based on CC2530F256 scheme.
Alternatively, described energy management module comprises solar panel, charge management circuit, voltage stabilizing circuit and lithium battery.
Alternatively, described solar panel is 15w monocrystalline solar cells plate, and operating voltage is 17.5V, and operating current is 0.86A, and open circuit voltage is 21.5V, and short-circuit voltage is 0.97A.
Alternatively, described lithium battery is poly-lithium battery.
Alternatively, described poly-lithium battery nominal voltage is 7.4V, and maximum charging voltage is 8.4V, and minimum discharge voltage is 6.5V, and capacity is 15AH, and discharging current steady operation electric current is 3A, and charging current is 1A, and internal resistance is less than 50m Ω.
Alternatively, described memory module comprises data sub module stored and real-time clock.
Alternatively, described memory module is supported hot-swappable.
Alternatively, described radio frequency and be provided with communication interface circuit between microprocessor and described GPRS module.
Alternatively, described gateway relies on mounting bracket to fix, the long 200mm of vertical rod support of described mounting bracket, the GB steel pipe that the first half is long 50mm, diameter is 60mm, wall thickness is 2.0mm, the GB steel pipe of the latter half to be diameter be 76mm, flange in the bottom is the steel plate of thickness 6mm, integral installation rack surface electrostatic plastic spraying, high temperature baking vanish, cradle top is provided with the lightning rod of movable dismounting.
Utilize technique scheme of the present utility model, the data collected are sent on this gateway by WSN sensor node, and carry out data processing by radio frequency and microprocessor, be then sent to remote data center by GPRS module, or be sent to local data center by WIFI and RS232.Be applied in arranging net on a large scale, utilize " thought of dividing and ruling ", large scale network is divided and rule, composition GPRS-WSN group, each GPRS-WSN gateway is according to the corresponding many little networks of WSN of own net ability process, and the little network of each WSN is reliable and stable, thus make whole large scale network reliable and stable, and can trans-regional, collaborative work.When remote server controls accordingly to transducer acquisition node, ICP/IP protocol can be passed through, be sent on this wireless sensor network gateway via GPRS network again, radio frequency and microprocessor are according to receiving concrete content-control gateway and sensor node.When WSN network application is in wild environment, monitored area is away from wired IP networks, and the data collected are transferred to remote data center by GPRS network by this gateway, and backs up real-time gateway data by SD card memory.Be operated in wild environment, usually do not have civil power and environment is comparatively severe, this gateway energy management module can continuous operation more than 15 days under without the low side adverse circumstances of any illumination.PC host computer can be received by GPRS network and issue data, can remote parameter setting, real-time clock correction etc., for firmware upgrade, system maintenance is all very convenient.
The utility model achieves the non-maintaining and wild environment long-term stable operation of gateway, and particularly suitable needs to arrange net on a large scale, the wireless sensor network worked long hours under wild environment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model wireless sensor network gateway.
The hardware elementary diagram of this utility model of Fig. 2 RS-232 telecommunication circuit.
Fig. 3 is the support installing schematic diagram of the utility model wireless sensor network gateway.
Fig. 4 is application model frame diagram of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Fig. 1 is the structured flowchart of the utility model wireless sensor network gateway, and as shown in Figure 1, described wireless sensor network gateway comprises: radio frequency and microprocessor module, memory module, GPRS module, WIFI module, serial communication modular and energy management module, wherein:
The image data that described radio frequency and microprocessor are used for sending for WSN sensor node carries out collecting and processing, and receives host computer instruction and is handed down to sensing node;
Described GPRS module is connected with described radio frequency and microprocessor, for the data after described radio frequency and microprocessor processes are sent to remote data center, remote data transmission is realized to remote data center when monitored area is away from IP cable network, and can be closed and node the Controling network that sends instructions under WSN gateway and node by remote data center and GPRS network, so just can utilize thought of dividing and ruling in arranging net on a large scale, form GPRS-WSN group, large scale network is divided and rule, the work of trans-regional association;
Described WIFI module is connected with described radio frequency and microprocessor with serial communication modular, for the data after described radio frequency and microprocessor processes are sent to local data center, namely WIFI module and serial communication modular provide local area transmission service for WSN network;
In the utility model one embodiment, described serial communication modular is RS232 serial communication modular.
Described energy management module is connected with above-mentioned modules, for responsible gateway modules power supply, detect electricity, Based Intelligent Control carried out to power supply, realize non-maintaining and wild environment long-term stable operation;
Described memory module comprises data sub module stored and real-time clock module, SPI communication mode is adopted to be connected with radio frequency and microprocessor module, for carrying out real-time storage for wireless sensor network gateway data, especially when the timing of GPRS network swinging of signal can be backed up in realtime for gateway data, and warm connection function can be realized.
In the utility model one embodiment, described data sub module stored is SD card data sub module stored.
When remote server controls accordingly to transducer acquisition node, ICP/IP protocol can be passed through, be sent on this wireless sensor network gateway via GPRS network again, radio frequency and microprocessor are according to receiving concrete content-control gateway and sensor node.
Wherein, described radio frequency and microprocessor module are based on CC2530F256 scheme, described CC2530F256 is that it can set up powerful network node with low-down total material cost for one of IEEE802.15.4, ZigBee and RF4CE application real SOC (system on a chip) solution.CC2530F256 combines the premium properties of leading RF transceiver, the enhancement mode 8051CPU of industrywide standard, In-System Programmable flash memory, 8KB RAM and other powerful functions many, mainly collects and processes sensing node information and receive PC host computer instruction and be handed down to sensing node.
Described energy management module comprises solar panel, charge management circuit, voltage stabilizing circuit and lithium battery further, wherein, the power output of solar panel stores into lithium battery by charge management circuit, and through voltage stabilizing circuit, power supply is to CC2530 radio-frequency module, GPRS module inside has voltage stabilizing function, so lithium battery can directly be powered to GPRS module.Wherein, solar panel selects 15w monocrystalline solar cells plate, operating voltage: 17.5V, operating current: 0.86A, open circuit voltage: 21.5V, short-circuit voltage: 0.97A, size: 430*295*25mm.In the utility model one embodiment, described lithium battery is poly-lithium battery, described poly-lithium battery nominal voltage: 7.4V, maximum charging voltage: 8.4V, minimum discharge voltage: 6.5V, capacity: 15AH, discharging current steady operation electric current 3A, charging current: 1A, internal resistance: be less than 50m Ω, size: 13.3cm*9.4cm*2.6cm, weight: about 500g, service time is long, and discharge and recharge capable of circulation can reach more than 700 times, service life of lithium battery 3-5.
Described SD card memory module, based on 51 kernels, has been transplanted file system, has also been comprised real-time clock, makes SD card memory module possess the real-time storage function of data; When the one party of communication breaks down, wireless sensor network gateway storing data automatically is in local SD card memory module; When communication recovers, the data of storage can be resumed, thus improve the reliability of system, especially under exceedingly odious condition, when the timing of GPRS swinging of signal can improve the stable of system and reliability.
As shown in Figure 2, need between CC2530 radio-frequency module and GPRS module to carry out the mutual of data, so need to design communication interface circuit, to realize correct transfer of data.Because CC2530 single-chip microcomputer provides Transistor-Transistor Logic level, and GPRS module provides RS232 negative logic level, in order to can effectively communicate between CC2530 with GPRS module, these two level must be changed mutually.Again because the operating voltage of CC2530 is 3.3V, its TTL output level ceiling voltage is 3.3V, therefore level transferring chip needs the Transistor-Transistor Logic level of 3.3V to be converted to RS-232 negative logic level, in the utility model one embodiment, have employed the MAX3232 chip that can be operated in 3.3V.
The minimum supply power voltage of GPRS module is 5V, immediate current can reach 1.5A, select the lithium battery that voltage nominal is higher, be beneficial to the demand that lithium battery is easier to meet GPRS module instantaneous large-current, consider again the transformation efficiency of circuit, the larger efficiency of input and output pressure reduction is lower, so be nominally the lithium battery of 7.4V, instead of is nominally the lithium battery of about 12V.Calculate battery capacity, can draw and be nominally the lithium battery that 7.4V capacity is 15Ah, the minimum output power of solar panel is 1.8W, can supply gateway work about 15 days calculating according in unglazed situation, and gateway selects the solar panel of 15W to power.
As shown in Figure 3, gateway mounting bracket technical requirement is, gateway adopts enclosure material: cast aluminium, shell stationary fixture (U hoop clip code); Sealing strip; The anti-head of PG9; Plug, aluminum hull inside dimension is: 210 × 130 × 60mm.Fixing by vertical rod support of gateway, the long 200mm of vertical rod support, the GB steel pipe that the first half is long 50mm, diameter is 60mm, wall thickness is 2.0mm; The GB steel pipe of the latter half to be diameter be 76mm, flange in the bottom is the steel plate of thickness 6mm, integral support surface electrostatic plastic-blasting, high temperature baking vanish, milky, and lightning rod is arranged on cradle top, movable dismounting.
As shown in Figure 4, WSN monitored area is wide, under lowered in field environment, monitored area distance IP cable network distance, so arranging net on a large scale and bad environments environment, is major test for WSN scheme Design, for these problems, main research at present concentrates on the aspects such as Routing Protocol, time synchronized strategy, cross layer design, load balancing, but these researchs temporarily also do not obtain important breakthrough for problem of arranging net on a large scale.GPRS technology has some to apply in the WSN of water meter, ammeter and single node.Unfortunately, these applications are still very narrow, and volume of transmitted data is also smaller, not yet really play the potentiality that GPRS and WSN combines.Utilization is divided and ruled thought, corresponding for a N number of node WSN gateway is formed a small-sized WSN network, N is not more than the number of nodes (scope generally can be 50-100) that WSN system carries, number of nodes is many, the increase of the WSN number of plies can bring unstable networks, transmission delay increases, the problems such as node data loss, so divide and rule, GPRS-WSN group is resolved into by arranging net on a large scale, each GPRS-WSN gateway is according to the corresponding many little networks of WSN of own net ability process, and the little network of each WSN is reliable and stable, thus make whole large scale network reliable and stable, and can be trans-regional, collaborative work.
Utilize technique scheme of the present utility model, be distributed in the node image data in scene, then according to the agreement specified in advance, field data is sent to the GPRS-WSN gateway node of its correspondence by the mode of single-hop or multi-hop ad hoc, gateway node in GPRS-WSN group is passed to corresponding guarded region data center by operator's GPRS network again and is done certain transmission backup mechanism, when remote server controls accordingly to transducer acquisition node, ICP/IP protocol can be passed through, be sent on this wireless sensor network gateway via GPRS network again, radio frequency and microprocessor are according to receiving concrete content-control gateway and sensor node.
In arranging net on a large scale, utilization is divided and ruled thought, this gateway is utilized to form GPRS-WSN group, each GPRS-WSN gateway is according to the little network of WSN of own net ability process respective numbers, and the little network of each WSN is reliable and stable, thus make whole large scale network reliable and stable, overcome tremendous economic waste that GPRS TOCOM total communication brings and WSN network to arrange net on a large scale instability problem, in conjunction with GPRS networking mode on the basis of WSN network integrity, the multi-hop ad hoc flexible nature making full use of Mesh network plays GPRS remote data transmission advantage simultaneously, solve the problem that guarded region distance IP cable network far causes, and then form unattended operation ground transaucer group, and can be trans-regional, collaborative work, networking transmission means is various, time delay is few, network stabilization is reliable, and have multiple duplication transmission mechanism to ensure.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (9)
1. wireless sensor network (WSN) gateway, is characterized in that, this gateway comprises: radio frequency and microprocessor module, memory module, GPRS module, WIFI module, serial communication modular and energy management module, wherein:
The image data that described radio frequency and microprocessor are used for sending for sensor node carries out collecting and processing, and receives host computer instruction and is handed down to sensing node;
Described GPRS module is connected with described radio frequency and microprocessor, for the data after described radio frequency and microprocessor processes are sent to remote data center, is sent instructions under gateway and node by remote data center and GPRS network;
Described WIFI module is connected with described radio frequency and microprocessor with serial communication modular, for the data after described radio frequency and microprocessor processes are sent to local data center;
Described energy management module is connected with radio frequency and microprocessor module, memory module, GPRS module, WIFI module and serial communication modular, controls for the power supply of responsible modules, electric power detection and power supply smart;
Described memory module adopts SPI communication mode to be connected with radio frequency and microprocessor module, for carrying out real-time storage for wireless sensor network gateway data.
2. gateway according to claim 1, is characterized in that, described energy management module comprises solar panel, charge management circuit, voltage stabilizing circuit and lithium battery.
3. gateway according to claim 2, is characterized in that, described solar panel is 15w monocrystalline solar cells plate, and operating voltage is 17.5V, and operating current is 0.86A, and open circuit voltage is 21.5V, and short-circuit voltage is 0.97A.
4. gateway according to claim 2, is characterized in that, described lithium battery is poly-lithium battery.
5. gateway according to claim 4, is characterized in that, described poly-lithium battery nominal voltage is 7.4V, maximum charging voltage is 8.4V, and minimum discharge voltage is 6.5V, and capacity is 15AH, discharging current steady operation electric current is 3A, and charging current is 1A, and internal resistance is less than 50m Ω.
6. gateway according to claim 1, is characterized in that, described memory module comprises data sub module stored and real-time clock.
7. gateway according to claim 1, is characterized in that, described memory module is supported hot-swappable.
8. gateway according to claim 1, is characterized in that, described radio frequency and be provided with communication interface circuit between microprocessor and described GPRS module.
9. gateway according to claim 1, it is characterized in that, described gateway relies on mounting bracket to fix, the long 200mm of vertical rod support of described mounting bracket, the GB steel pipe that the first half is long 50mm, diameter is 60mm, wall thickness is 2.0mm, the GB steel pipe of the latter half to be diameter be 76mm, flange in the bottom is the steel plate of thickness 6mm, integral installation rack surface electrostatic plastic spraying, high temperature baking vanish, cradle top is provided with the lightning rod of movable dismounting.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676074A (en) * | 2016-03-11 | 2016-06-15 | 国网山西省电力公司运城供电公司 | Power transmission line fault positioning device based on non-contact type sensor |
| CN105704849A (en) * | 2016-03-22 | 2016-06-22 | 北京科技大学 | Self-powered internet of things gateway based on 433M and GPRS |
| CN106973470A (en) * | 2016-01-13 | 2017-07-21 | 深圳市轻生活科技有限公司 | Can voice latency or time switch intelligent lamp and its intelligent lighting control system |
-
2015
- 2015-04-21 CN CN201520244897.2U patent/CN204697309U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973470A (en) * | 2016-01-13 | 2017-07-21 | 深圳市轻生活科技有限公司 | Can voice latency or time switch intelligent lamp and its intelligent lighting control system |
| CN105676074A (en) * | 2016-03-11 | 2016-06-15 | 国网山西省电力公司运城供电公司 | Power transmission line fault positioning device based on non-contact type sensor |
| CN105704849A (en) * | 2016-03-22 | 2016-06-22 | 北京科技大学 | Self-powered internet of things gateway based on 433M and GPRS |
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