CN203759158U - ZigBee-network-based low voltage power source SPD on-line monitoring system - Google Patents

ZigBee-network-based low voltage power source SPD on-line monitoring system Download PDF

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Publication number
CN203759158U
CN203759158U CN201420083550.XU CN201420083550U CN203759158U CN 203759158 U CN203759158 U CN 203759158U CN 201420083550 U CN201420083550 U CN 201420083550U CN 203759158 U CN203759158 U CN 203759158U
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China
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zigbee
module
line monitoring
monitoring system
spd
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CN201420083550.XU
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Chinese (zh)
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杨仲江
陈璞阳
叶挺
周中山
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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Abstract

The utility model discloses a ZigBee-network-based low voltage power distribution SPD on-line monitoring system comprising at least a collection module, at least a ZigBee routing module and a ZigBee data terminal module that are interconnected through a ZigBee wireless network. The collection module comprises a first power source module used for power supply, a monitoring module, a first one-chip microcomputer processor and a first ZigBee transmit-receive unit. The monitoring module, the first one-chip microcomputer processor and the first ZigBee transmit-receive unit are orderly connected. The ZigBee routing module comprises a second ZigBee transmit-receive unit, a first LCD module, and a second power source module which is used for power supply, wherein the first LCD module and the second power source module are respectively connected with the second ZigBee transmit-receive unit. The ZigBee data terminal module comprises a third power source module which is used for power supply, a third ZigBee transmit-receive unit, a second one-chip microcomputer processor, a second LCD module, a storage module and a host computer. The ZigBee-network-based low voltage power source SPD on-line monitoring system is simple in principle and reasonable in structure, and popularization and utilization of on-line monitoring industries can be facilitated.

Description

Low-tension supply SPD on-line monitoring system based on ZigBee-network
Technical field
The utility model relates to a kind of low-tension supply SPD on-line monitoring system based on ZigBee-network, belongs to electronics, electrical equipment monitoring field.
Background technology
In low-voltage distribution system, surge protector (Surge Protective Device, SPD) can effectively limit transient overvoltage and the surge current of releasing, thereby is widely used.But the core component Zinc-oxide piezoresistor of low-tension supply SPD is in operation and has aging degradation phenomena, in order to ensure the safe operation of using electricity system, must detect accordingly operating low-tension supply SPD.Traditional means is taked regular power failure detection method, is difficult to reflect in time the aging conditions of device interior, has huge hidden danger in promptness and security, has also wasted a large amount of manpower and materials simultaneously.Based on above reason, meet current intelligent grid safety for the on-line monitoring of low-tension supply SPD, economy, the development trend of stable operation, has wide DEVELOPMENT PROSPECT.Below, by research Patents, technical background of the present utility model is described.
Mostly adopt wired mode for the on-line monitoring of SPD at present, for example patent digital-type intelligent Zinc-Oxide Arrester on-line monitoring instrument (201220231520.X) adopts centre path current sensor to gather leakage current, image data is after single-chip microcomputer is processed, after RS485 interface, import in man-machine interface, thereby reach the object of on-line monitoring, the electric lightning on-line monitoring intelligent terminal (201120329498.8) of a kind of optical fiber power supply of patent, the data collecting module collected that utilization comprises temperature sensor and voltage transformer (VT), use RS232 interface that the real time data of test is uploaded to PC, according to supervisory system, the SPD of data exception is reported to the police, thereby realize on-line monitoring, a kind of capacitive apparatus of patent and arrester on-line monitoring system (201220415370) utilize Canbus and data acquisition unit to carry out communication, to realize safe and reliable on-line monitoring.But above-mentioned patent is because its data transmission is taked the mode of wire transmission, and required cable laying amount is larger, and wiring aspect cost is higher, and in the time that monitoring system need to add new monitoring point, upgrading is very difficult.More seriously, the stability of this type systematic is poor, once break down at certain point of circuit, may cause whole system normally to move, and this has just limited the development of wire transmission on-line monitoring system aspect.Therefore, develop a kind of new online monitoring data transmission mode and seem particularly important.Patent Zinc-Oxide Arrester on-Line Monitor Device (201220151871.X) adopts the load mode of bluetooth communication as lightning arrester Real-time Monitoring Data, to arrive the on-line monitoring of wireless mode, but bluetooth module power consumption is larger, transmission range only has 1 ~ 10 meter and cannot expand in a large number child node, thereby is not suitable for large-scale on-line monitoring.Patent electric transmission line lightning arrester on-Line Monitor Device (201220401658.X) adopts the wireless transmission method of GPRS transport module as its online monitoring data communication, has better realized the on-line monitoring of field high-voltage arrester.But many for monitoring node number, the on-line monitoring of the low-tension supply SPD that fitting limit is little, GPRS data transmission expense is too high, economic and practical not.Therefore be badly in need of a kind of new wireless transmission method, many to meet low-tension supply SPD on-line monitoring interstitial content, networking expansion is good, the requirement that data transmission is cheap.
Zigbee is the low-power consumption territory fidonetFido based on IEEE802.15.4 standard, has low-power consumption, low cost, and low rate, closely, prolongs in short-term, high power capacity, high safety, the features such as unlicensed band.It is a kind of technology between radio mark and Bluetooth technology, is mainly used in wireless near field communication field.ZigBee has the radio standard carrying, thereby between numerous sensors, mutually coordinates to realize communication, and sensor node only needs small energy just can data message be passed to another sensor from a sensor by antenna.Finally, these data messages can import computing machine into and carry out corresponding analyzing and processing or collected by another kind of wireless module.Therefore ZigBee-network is best suited in the wireless technology in the fields such as sensor network, engineering monitoring, family's monitoring.According to relevant investigation, at present ZigBee be there is not yet to report for the Patents of low-tension supply SPD on-line monitoring system.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network, and the wiring cost that the utility model has solved existing on-line monitoring system existence is high, the problem of poor reliability.The utility model principle is simple, rational in infrastructure, is conducive to the utilization and extention of on-line monitoring industry.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
The utility model provides a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network, comprises by interconnective at least one acquisition module of ZigBee wireless network, at least one ZigBee routing module and a ZigBee data terminal module;
Described acquisition module comprises the first power module and the monitoring modular being connected successively, the first processor of single chip computer, a ZigBee Transmit-Receive Unit for powering; Described monitoring modular comprises leakage current monitoring circuit, over-voltage monitoring circuit;
Described ZigBee routing module comprises the 2nd ZigBee Transmit-Receive Unit and a coupled LCD module, the second source module for powering respectively;
Described ZigBee data terminal module comprises the 3rd power module, the 3rd ZigBee Transmit-Receive Unit, second singlechip processor, the 2nd LCD module, memory module, the host computer for powering; Described the 3rd power module is connected with the 3rd ZigBee Transmit-Receive Unit, second singlechip processor respectively; Described the 3rd ZigBee Transmit-Receive Unit is connected with the 2nd LCD module, second singlechip processor respectively; Described second singlechip processor is connected with memory module by memory interface, is connected with host computer by serial ports unit.
As further prioritization scheme of the present utility model, described leakage current monitoring circuit adopts outer integration Luo-coil to gather the leakage current of SPD; Described over-voltage monitoring circuit adopts resitstance voltage divider collection to put on the magnitude of voltage of SPD.
As further prioritization scheme of the present utility model, described first, second processor of single chip computer adopts 16 super low power consuming single chip processor chips that model is MSP430.
As further prioritization scheme of the present utility model, the described first to the 3rd ZigBee Transmit-Receive Unit employing is integrated with CC2430 and two kinds of chips of CC2591.
As further prioritization scheme of the present utility model, the described first to the 3rd power module adopts the LVPS of 1.8 ~ 3.6V.
As further prioritization scheme of the present utility model, described memory interface adopts USB/SD interface circuit.
As further prioritization scheme of the present utility model, described serial ports unit adopts RS232 interface.
As further prioritization scheme of the present utility model, described ZigBee Transmit-Receive Unit is connected by spi bus with LCD module.
As further prioritization scheme of the present utility model, described first, second LCD module adopts the Liquid Crystal Module of 128 × 64 dot matrix.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
(1) the utility model, based on ZigBee wireless network, has been realized the wireless networked of low-tension supply SPD on-line monitoring system, compares existing on-line monitoring system, and more economical and efficient is easy to expand;
(2) acquisition module of the present utility model uses Luo-coil and voltage divider to gather leakage current and the superpotential of low-tension supply SPD, avoids monitoring equipment to introduce high voltage, thereby makes on-line monitoring safer, accurately;
(3) the utility model, by adding ZigBee routing module, is convenient to data centralization transmission, has effectively expanded the transmission range of wireless monitor system simultaneously;
(4) the utility model, by adding ZigBee terminal module, is realized the real-time storage function of Monitoring Data, and utilizes host computer to carry out real-time on-line monitoring to low-tension supply SPD.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the structured flowchart of acquisition module.
Fig. 3 is the structured flowchart of ZigBee routing module.
Fig. 4 is the structured flowchart of ZigBee data terminal module.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Those skilled in the art of the present technique are understandable that, unless specially statement, singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording using in instructions of the present utility model " comprises " and refers to and have described feature, integer, step, operation, element and/or assembly, exists or adds one or more other features, integer, step, operation, element, assembly and/or their group but do not get rid of.Should be appreciated that, when we claim element to be " connected " or " coupling " when another element, it can be directly connected or coupled to other elements, or also can have intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises arbitrary unit of listing item and all combinations that one or more is associated.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the utility model under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the meaning consistent with meaning in the context of prior art, unless and definition as here, can not explain by idealized or too formal implication.
A kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network of the utility model design, based on ZigBee wireless network, by at least one acquisition module, at least one ZigBee routing module and a ZigBee data terminal module, the wiring cost that has solved existing on-line monitoring system existence is high, the problem of poor reliability.
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail:
A low-voltage distribution SPD on-line monitoring system based on ZigBee-network, as shown in Figure 1, comprises by interconnective at least one acquisition module of ZigBee wireless network, at least one ZigBee routing module and a ZigBee data terminal module.By the operation conditions of at least one each low-tension supply of acquisition module Real-Time Monitoring SPD, by ZigBee wireless network, Real-time Monitoring Data is sent to ZigBee routing module; ZigBee routing module plays transfer effect, can effectively expand the transmission range of whole ZigBee-network.By ZigBee routing module, Real-time Monitoring Data is forwarded to ZigBee data terminal module, after ZigBee data terminal module is accepted real time data and is processed, on the one hand data are deposited in mass-memory unit, to transfer at any time historical summary, thereby be conducive to analysis accident occurrence cause; On the other hand, transfer data to host computer, host computer, according to built-in algorithms, is monitored in real time to low-tension supply SPD system, in the time there is danger, reports to the police in time.
Acquisition module in the utility model as shown in Figure 2, comprises the first power module and the monitoring modular being connected successively, the first processor of single chip computer, a ZigBee Transmit-Receive Unit for powering; Described monitoring modular comprises leakage current monitoring circuit, over-voltage monitoring circuit.Leakage current monitoring circuit adopts outer integration Luo-coil to gather the leakage current of low-tension supply SPD, and the signal of collection is sent into the first processor of single chip computer processing after a series of processing such as integrating resistor, linear amplification, filtering, A/D conversion, carries out format conversion.Over-voltage monitoring circuit adopts resitstance voltage divider collection to put on the magnitude of voltage of SPD, and the signal of collection is sent into the first processor of single chip computer processing after polarity conversion, pressure limiting, photoelectric coupling.The first processor of single chip computer adopts 16 super low power consuming single chip processor chips that model is MSP430, monitoring modular is by the signal input MSP430 obtaining, through processing, input signal is converted into the data layout that can read knowledge, then transmits to a ZigBee Transmit-Receive Unit.The one ZigBee Transmit-Receive Unit main integrated CC2430 and two kinds of chips of CC2591, CC2430 is a complete compatible 8051 kernels, support 2.4 GHz less radio-frequency single-chip microcomputers of IEEE 802.15.4 agreement simultaneously, in the time using CC2430 chip to carry out wireless transmission, because the emissive power of chip itself is very little, limit the communication distance of this wireless network; Therefore add radio frequency chip CC2591, thereby improve emissive power, improve the sensitive of receiver, extend its communication distance.Real-time Monitoring Data, through this ZigBee Transmit-Receive Unit, sends wireless signal to ZigBee routing node.The first power module is mainly responsible for to said units power supply, in order to reduce power consumption, can adopt two joint 1.5V dry cells to realize.
ZigBee routing module in the utility model as shown in Figure 3, comprises the 2nd ZigBee Transmit-Receive Unit and a coupled LCD module, the second source module for powering respectively.The 2nd ZigBee Transmit-Receive Unit is accepted the data that acquisition module transmits, and is forwarded to data terminal module after carrying 8051 kernel processes.The one LCD module adopts the liquid crystal of 128 × 64 dot matrix, and data-transmission mode adopts spi bus transmission, is mainly used in showing node state.Because ZigBee routing module need to keep stable state, therefore second source module adopts form of communication conventionally, adopts 3.3V alternating current to power to ZigBee routing module in embodiment of the present utility model.
ZigBee data terminal module in the utility model as shown in Figure 4, comprises the 3rd power module, the 3rd ZigBee Transmit-Receive Unit, second singlechip processor, the 2nd LCD module, memory module, host computer for powering; Described the 3rd power module is connected with the 3rd ZigBee Transmit-Receive Unit, second singlechip processor respectively; Described the 3rd ZigBee Transmit-Receive Unit is connected with the 2nd LCD module, second singlechip processor respectively; Described second singlechip processor is connected with memory module by memory interface, is connected with host computer by serial ports unit.The 3rd ZigBee Transmit-Receive Unit is mainly made up of CC2430 and two kinds of chips of CC2591,16 super low power consuming single chip processor chips that second singlechip processor adopting model is MSP430.Because data terminal needs processing speed faster, although 8051 cores that CC2430 is integrated, MSP430 has advantages of processing speed and super low-power consumption faster, is more suitable for the demand of system, so the 3rd ZigBee Transmit-Receive Unit is connected with MSP430 single-chip microcomputer, with speed up processing.After the 3rd ZigBee Transmit-Receive Unit is accepted data that ZigBee routing module transmits, real time data is sent into and in MSP430, changed data layout.The 2nd LCD module is connected with the 3rd ZigBee Transmit-Receive Unit by SPI circuit, for showing Transmit-Receive Unit state.MSP430 is connected with USB/SD card fetch interface and RS232 interface, MSP430 can realize two functions: first, the real time data of processing is deposited in large capacity storage module by USB or SD interface circuit, to transfer at any time historical summary, if there is accident to occur, can analyzes it and produce reason; The second, real time data can be transferred to host computer through RS232 interface, low-tension supply SPD system is monitored in real time, thereby realized the whole on-line monitoring based on ZigBee-network.
The above; it is only the embodiment in the utility model; but protection domain of the present utility model is not limited to this; any people who is familiar with this technology is in the disclosed technical scope of the utility model; can understand conversion or the replacement expected; all should be encompassed in of the present utility model comprise scope within, therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims (9)

1. the low-voltage distribution SPD on-line monitoring system based on ZigBee-network, it is characterized in that, this system comprises by interconnective at least one acquisition module of ZigBee wireless network, at least one ZigBee routing module and a ZigBee data terminal module;
Described acquisition module comprises the first power module and the monitoring modular being connected successively, the first processor of single chip computer, a ZigBee Transmit-Receive Unit for powering; Described monitoring modular comprises leakage current monitoring circuit, over-voltage monitoring circuit;
Described ZigBee routing module comprises the 2nd ZigBee Transmit-Receive Unit and a coupled LCD module, the second source module for powering respectively;
Described ZigBee data terminal module comprises the 3rd power module, the 3rd ZigBee Transmit-Receive Unit, second singlechip processor, the 2nd LCD module, memory module, the host computer for powering; Described the 3rd power module is connected with the 3rd ZigBee Transmit-Receive Unit, second singlechip processor respectively; Described the 3rd ZigBee Transmit-Receive Unit is connected with the 2nd LCD module, second singlechip processor respectively; Described second singlechip processor is connected with memory module by memory interface, is connected with host computer by serial ports unit.
2. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described leakage current monitoring circuit adopts outer integration Luo-coil to gather the leakage current of SPD; Described over-voltage monitoring circuit adopts resitstance voltage divider collection to put on the magnitude of voltage of SPD.
3. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described first, second processor of single chip computer adopts 16 super low power consuming single chip processor chips that model is MSP430.
4. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, the described first to the 3rd ZigBee Transmit-Receive Unit employing is integrated with CC2430 and two kinds of chips of CC2591.
5. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, the described first to the 3rd power module adopts the LVPS of 1.8 ~ 3.6V.
6. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described memory interface adopts USB or SD interface circuit.
7. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described serial ports unit adopts RS232 interface.
8. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described ZigBee Transmit-Receive Unit is connected by spi bus with LCD module.
9. a kind of low-voltage distribution SPD on-line monitoring system based on ZigBee-network according to claim 1, is characterized in that, described first, second LCD module adopts the Liquid Crystal Module of 128 × 64 dot matrix.
CN201420083550.XU 2014-02-26 2014-02-26 ZigBee-network-based low voltage power source SPD on-line monitoring system Expired - Fee Related CN203759158U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913650A (en) * 2014-02-26 2014-07-09 南京信息工程大学 Low-voltage power supply SPD online monitoring system based on ZigBee network
CN104849597A (en) * 2015-05-20 2015-08-19 南京信息工程大学 Metal oxide lightning arrester online monitoring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103913650A (en) * 2014-02-26 2014-07-09 南京信息工程大学 Low-voltage power supply SPD online monitoring system based on ZigBee network
CN104849597A (en) * 2015-05-20 2015-08-19 南京信息工程大学 Metal oxide lightning arrester online monitoring method

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