CN201402531Y - WSN-based geomagnetic parking stall detector and geomagnetic parking stall detection system - Google Patents
WSN-based geomagnetic parking stall detector and geomagnetic parking stall detection system Download PDFInfo
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- CN201402531Y CN201402531Y CN2009200566860U CN200920056686U CN201402531Y CN 201402531 Y CN201402531 Y CN 201402531Y CN 2009200566860 U CN2009200566860 U CN 2009200566860U CN 200920056686 U CN200920056686 U CN 200920056686U CN 201402531 Y CN201402531 Y CN 201402531Y
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Abstract
Description
Technical field
The utility model relates to the parking stall measure technical field, relates in particular to geomagnetic parking stall detector and geomagnetic parking stall detection system based on radio sensing network.
Background technology
Along with popularizing of development of urbanization and automobile, car owning amount constantly increases, and the city parking difficulty becomes the common difficulty that various countries, the world today face.No matter be developed country, or developing country, the serious asymmetric and low puzzlement of parking lot equipment scientific and technological content of car park capacity and car owning amount all born without any exception.Solve the most direct method of parking difficulty is to build the parking lot more, but the city can be for the resource-constrained of building the parking lot, and the seriousness of this imbalance between supply and demand is extensively cognitive by people.Parking difficulty, the vicious cycle of disorderly stopping become the difficult point of urban traffic control, also directly cause traffic jam, hinder economic development.Meanwhile, also there are some parking fee collective systems high or do not understand the position, parking lot and utilization rate is low.Solving this imbalance between supply and demand, will build more parking lots on the one hand, is to utilize technological means to build intelligent parking system on the other hand.
What shutdown system was most crucial is the parking stall measure system.Existing parking stall measure has following several mode: one, earth coil; Earth coil detects the standardization that develops into now through decades, technology maturation, be easy to grasp, counting accurately and system stability, but have that the installation of coil or maintenance process can make that traffic is obstructed, the joint-cutting of embedding coil makes that the road surface is impaired, pavement construction causes coil can't use, be vulnerable to drawbacks such as influence, life-span of freezing, saline and alkaline or heavy traffic be short.Its two, the ultrasound wave parking stall measure; The ultrasound wave parking stall measure adopts the principle of work of ultrasonic ranging, can the reliable detection vehicle whether on the parking stall, but therefore it be subject to Effect of Environmental owing to adopt active acoustic sounding in detection process, be not suitable for using at outdoor environment; Simultaneously, because ultrasonic characteristic occurs flase drop easily and surveys phenomenon.Its three, video frequency car position detects; Video frequency car position detector is applicable to that city indoor and outdoor parking position detects, and can provide traffic data information and accident to detect information, it is much lower daytime that its deficiency is to carry out night the ratio of precision of vehicle detection, simultaneously, very mistake arranged on the accuracy of information.The above equal defectiveness of parking stall measure scheme is unfavorable for the maintenance management of parking stall measure system.
The utility model content
The utility model provides based on the geomagnetic parking stall detector of radio sensing network and geomagnetic parking stall detection system, it adopts MEMS geomagnetic sensor technology and radio sensing network technology monitoring parking stall, help the maintenance management of parking stall measure system, solve the social concern of parking difficulty.
A kind of geomagnetic parking stall detector based on radio sensing network comprises MEMS geomagnetic sensor and radio sensing network node, and the MEMS geomagnetic sensor is connected by universal serial bus with radio sensing network node; Radio sensing network node comprises radio-frequency (RF) transceiver, antenna and microcontroller, and radio-frequency (RF) transceiver is connected with antenna, and microcontroller is connected with radio-frequency (RF) transceiver.
Wherein, further comprise the dormant state control circuit that is used to control the geomagnetic parking stall detector dormant state.
Wherein, the chip model used of radio sensing network node is CC2430 or CC2431.
Wherein, the MEMS geomagnetic sensor comprises the MMC202xMG sensor chip.
Wherein, universal serial bus is I2C bus, spi bus or UART bus.
Wherein, further be included as the power module that MEMS geomagnetic sensor and radio sensing network node provide power supply.
A kind of geomagnetic parking stall detection system, comprise above-mentioned geomagnetic parking stall detector, be used to converge the aggregation node of geomagnetic parking stall detector information, be used for being undertaken the data communication terminal of data transmission, be used for being undertaken the background monitoring system of data transmission by mobile communications network and data communication terminal by mobile communications network and background monitoring system; Geomagnetic parking stall detector and aggregation node carry out data transmission by radio sensing network, and aggregation node is connected with data communication terminal by serial ports.
Wherein, mobile communications network is specially: use the cordless communication network of GPRS (General Packet Radio Service) technology, the cordless communication network or the third generation cordless communication network of employing code division multiple access technology.
Wherein, the model of data communication terminal is GF-2008AW GPRS DTU.
Wherein, background monitoring system comprises database server, client server, management server, and database server is connected with client server, management server.
The beneficial effects of the utility model: geomagnetic parking stall detector comprises MEMS geomagnetic sensor and radio sensing network node, and the MEMS geomagnetic sensor is connected by universal serial bus with radio sensing network node; Owing to adopt MEMS geomagnetic sensor technology and radio sensing network technology monitoring parking stall, help the maintenance management of parking stall measure system; And the radio sensing network technology no longer need be particularly suitable for the parking lot of waiting the abominable parking lot of environment in the open or being not suitable for connecting up at the parking lot laying-out.
Another beneficial effect of the present utility model: the geomagnetic parking stall detection system comprises geomagnetic parking stall detector, be used to converge the aggregation node of geomagnetic parking stall detector information, be used for being undertaken the data communication terminal of data transmission, be used for being undertaken the background monitoring system of data transmission by mobile communications network and data communication terminal by mobile communications network and background monitoring system; Because geomagnetic parking stall detector adopts MEMS geomagnetic sensor technology and radio sensing network technology monitoring parking stall, helps the maintenance management of parking stall measure system; And the geomagnetic parking stall detection system gathers together wireless sensor technology, mobile communications network, computer monitoring technology effectively, and large-scale intelligent comprehensive parking service can be provided, and solves the social concern of parking difficulty.
Description of drawings
Fig. 1 is the structural representation of geomagnetic parking stall detection system of the present utility model.
Embodiment
Referring to Fig. 1, the utility model is described in detail below in conjunction with accompanying drawing.
The geomagnetic parking stall detection system of present embodiment comprises geomagnetic parking stall detector 10, be used to converge the aggregation node 11 of geomagnetic parking stall detector 10 information, be used for being undertaken the data communication terminal 12 of data transmission, be used for being undertaken the background monitoring system 13 of data transmission by mobile communications network and data communication terminal 12 by mobile communications network and background monitoring system 13; Geomagnetic parking stall detector 10 carries out data transmission with aggregation node 11 by radio sensing network, and aggregation node 11 is connected with data communication terminal 12 by serial ports.Above-mentioned universal serial bus is I2C bus, spi bus or UART bus.
Geomagnetic parking stall detector 10, aggregation node 11 (CDT), data communication terminal 12 (DUT) constitute sub-network, and each sub-network is corresponding to a zone.A background monitoring system 13 can be corresponding to a plurality of sub-networks.Present embodiment is formed sub-network by the ZigBee agreement, and aggregation node 11 is the promoters in the sub-network, can add near the geomagnetic parking stall detector 10 that can be connected in network once starting.After sub-network is set up successfully, aggregation node 11 can delete voluntarily connection less than geomagnetic parking stall detector 10, upgrade the information in the sub-network at any time.Finally converge to aggregation node 11 by information such as geomagnetic parking stall detector 10 detected parking stalls in the multi-hop mode, aggregation node 11 sends to data communication terminal 12 with this information, and data communication terminal 12 sends to background monitoring system 13 by mobile communications network with this information.
In the present embodiment, mobile communications network is specially the cordless communication network that uses GPRS (General Packet Radio Service) technology (GPRS).Certainly, can also be other mobile communication technology, such as, the cordless communication network of employing code division multiple access technology (CDMA), the third generation (3G) cordless communication network, the cordless communication network of use TD SDMA access technology (TD SCDMA).
The model of data communication terminal 12 is GF-2008AW GPRS DTU.It is the product that the good multiple glad Science and Technology Ltd. in Beijing provides, and highly integrated GPRS technology and ICP/IP protocol link to each other with aggregation node 11 by serial ports, use the AT+I instruction easily control data receive and dispatch.Certainly, can also be for using the equipment of other mobile communication technology.Present embodiment has utilized GPRS network and INTERNET network, and these two kinds of networks as information transmitting medium, are set up the data transmission channel of data communication terminal 12 and background monitoring system 13.
Background monitoring system 13 comprises database server 15, client server 14, management server 16.Database server 15 is connected with client server 14, management server 16.Database server 15 is used to receive the information such as parking stall that data communication terminal 12 sends.Client server 14 obtains information from database server 15, and the user can obtain essential informations such as parking stall, wagon flow by client server 14, thereby gets help when stopping.Management server 16 obtains information from database server 15, and it can provide functions such as timing, charging, Information Statistics retrieval, query display for the parking lot management personnel mainly towards parking lot management personnel and governability personnel; Can analyze data for the governability personnel provide wagon flow, car statistics, and then auxiliary city planning.Certainly, can also note, the data of the mode Query Database server 15 of phone.Background monitoring system 13 provides intelligent parking management software operation interface, belongs to the upper layer application part, and at different user, software provides charging, record violating the regulations, inquiry and functions such as demonstration, analysis and statistics.
In the present embodiment, the geomagnetic parking stall detector 10 based on radio sensing network comprises MEMS geomagnetic sensor and radio sensing network node, and the MEMS geomagnetic sensor is connected by universal serial bus with radio sensing network node; Radio sensing network node comprises radio-frequency (RF) transceiver, antenna and microcontroller, and radio-frequency (RF) transceiver is connected with antenna, and microcontroller is connected with radio-frequency (RF) transceiver.The MEMS geomagnetic sensor is finished the collection of parking space information through the variation of out-of-date caused terrestrial magnetic field by measured automobiles.Radio sensing network node is finished earth magnetism information processing and wireless transmission.
In the present embodiment, the chip model that radio sensing network node uses is CC2430.The CC2430 chip is a real System on Chip/SoC (SoC) CMOS solution by the exploitation of TI company, and this solution fully satisfies based on the 2.4GHz ISM wave band of ZigBee to be used requirement low-cost, low-power consumption, and has good performance.Radio sensing network node also can use other chip, is the CC2431 chip such as model.
The MEMS geomagnetic sensor comprises the MMC202xMG sensor chip.This chip is produced by MeiXin Semiconductor company limited, adopt the manufacturing of MEMS technology, have that volume is little, sensitivity very high (measuring accuracy 1/512 Gauss), advantage such as low in energy consumption, can detect an automobile exactly to influence of geomagnetic, and then the information whether vehicle parking is arranged is provided.In addition, this chip adopts the I2C interface, can be connected and carry out information transmission easily with applied radio sensing network node in the native system.
Geomagnetic parking stall detector 10 further is included as the power module that MEMS geomagnetic sensor and radio sensing network node provide power supply, and power module can have dry cell, 5V direct supply and three kinds of power supply modes of sun power.Further comprise the dormant state control circuit that is used to control geomagnetic parking stall detector 10 dormant states; Geomagnetic parking stall detector 10 power consumption under dormant state is very low, can be provided with regularly to wake up or by external interrupt wakeup on the dormant state control circuit; Woke up once in per 3 minutes such as being set to, can make power consumption fall very lowly like this.
The course of work of geomagnetic parking stall detector 10 is as follows.After geomagnetic parking stall detector 10 powered on, radio sensing network node began building network, and the MEMS geomagnetic sensor detects the terrestrial magnetic field to be changed, and radio sensing network node entered park mode after networking finished.Radio sensing network node woke up once every 3 minutes, and radio sensing network node can initiatively send to the MEMS geomagnetic sensor and read ground magnetic value order.After the MEMS geomagnetic sensor received orders, the ground of register taking-up internally magnetic value was sent in the inner Flash storer of radio sensing network node.The ground magnetic value that the microcontroller analysis is read compares with default reference threshold, and whether judge this parking stall has car, and the parking space information after will handling by radio-frequency (RF) transceiver is by sending.Radio sensing network node enters dormant state once more, waits for and waking up next time.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (10)
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074125A (en) * | 2011-01-25 | 2011-05-25 | 中山北京理工大学研究院 | Low power consumption parking management system based on wireless sensor network, and wireless network nodes |
| CN102129726A (en) * | 2010-12-31 | 2011-07-20 | 钟明 | Multi-stage parking data collection system |
| CN102324188A (en) * | 2011-07-15 | 2012-01-18 | 广州市捷众科贸有限公司 | Buried parking space detector |
| CN102610124A (en) * | 2012-03-15 | 2012-07-25 | 秦旭彦 | Solar parking space sensor |
| CN102890871A (en) * | 2012-10-23 | 2013-01-23 | 中国矿业大学 | Remote wireless real-time detection system for terrestrial magnetism parking space |
| CN103106809A (en) * | 2012-12-31 | 2013-05-15 | 北京时代凌宇科技有限公司 | Detecting method and device for parking car tracking positioning |
| CN103236183A (en) * | 2013-04-12 | 2013-08-07 | 吕林璐 | Automatic car-searching system, automatic car-searching method and mobile terminal based on wireless geomagnetism detection |
| CN103365288A (en) * | 2013-08-02 | 2013-10-23 | 武汉恒达智慧城市交通研发有限公司 | Intelligently magnetic control method for parking |
| CN103390352A (en) * | 2012-09-27 | 2013-11-13 | 深圳市捷顺科技实业股份有限公司 | Terrestrial magnetism carport detector and detecting system |
| CN103606295A (en) * | 2013-10-30 | 2014-02-26 | 中国科学院上海微系统与信息技术研究所 | Parking-space information detection method |
| CN103827936A (en) * | 2011-07-25 | 2014-05-28 | 世界传感有限公司 | Sensor module for ground and system providing a pluraty of these |
| CN103914992A (en) * | 2014-04-24 | 2014-07-09 | 银江股份有限公司 | Intelligent parking detection system based on wireless sensor network |
| CN103996277A (en) * | 2014-05-31 | 2014-08-20 | 杭州百控科技有限公司 | Geomagnetic data aggregation forwarder |
| CN104408939A (en) * | 2014-11-04 | 2015-03-11 | 新疆华赛信息技术有限公司 | Wireless geomagnetic detector for vehicle detection, and vehicle detection method for wireless geomagnetic detector |
| CN104900068A (en) * | 2015-06-04 | 2015-09-09 | 交通运输部科学研究院 | Vehicle detector, method for intermittent and variable-frequency power supply, and method for reducing power consumption of wireless transceiver module |
| CN106548658A (en) * | 2016-11-22 | 2017-03-29 | 广西大学 | A kind of wireless anti-interference parking stall measure system of earth magnetism sensing |
| CN107067806A (en) * | 2017-04-05 | 2017-08-18 | 合肥酷睿网络科技有限公司 | A kind of parking guidance information delivery system based on GPRS network |
| CN107331197A (en) * | 2017-07-24 | 2017-11-07 | 同济大学 | A kind of parking systems stall testing apparatus, system and method |
| CN107749172A (en) * | 2017-09-27 | 2018-03-02 | 青岛海信网络科技股份有限公司 | A kind of geomagnetism detecting device control method and geomagnetism detecting device |
| CN109102716A (en) * | 2018-08-28 | 2018-12-28 | 南京理工大学 | A kind of parking stall measure system and method based on LoRa wireless communication technique |
| CN111145553A (en) * | 2018-11-02 | 2020-05-12 | 上海瑞章物联网技术有限公司 | Vehicle identification system |
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- 2009-05-15 CN CN2009200566860U patent/CN201402531Y/en not_active IP Right Cessation
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129726A (en) * | 2010-12-31 | 2011-07-20 | 钟明 | Multi-stage parking data collection system |
| CN102074125A (en) * | 2011-01-25 | 2011-05-25 | 中山北京理工大学研究院 | Low power consumption parking management system based on wireless sensor network, and wireless network nodes |
| CN102324188A (en) * | 2011-07-15 | 2012-01-18 | 广州市捷众科贸有限公司 | Buried parking space detector |
| CN103827936B (en) * | 2011-07-25 | 2016-08-17 | 世界传感有限公司 | Surface sensor module and the system of multiple this sensor assembly is provided |
| CN103827936A (en) * | 2011-07-25 | 2014-05-28 | 世界传感有限公司 | Sensor module for ground and system providing a pluraty of these |
| US9330569B2 (en) | 2011-07-25 | 2016-05-03 | Worldsensing, S.L. | Sensor module for ground and system providing a pluraty of these |
| CN102610124A (en) * | 2012-03-15 | 2012-07-25 | 秦旭彦 | Solar parking space sensor |
| CN103390352A (en) * | 2012-09-27 | 2013-11-13 | 深圳市捷顺科技实业股份有限公司 | Terrestrial magnetism carport detector and detecting system |
| CN102890871A (en) * | 2012-10-23 | 2013-01-23 | 中国矿业大学 | Remote wireless real-time detection system for terrestrial magnetism parking space |
| CN103106809A (en) * | 2012-12-31 | 2013-05-15 | 北京时代凌宇科技有限公司 | Detecting method and device for parking car tracking positioning |
| CN103236183A (en) * | 2013-04-12 | 2013-08-07 | 吕林璐 | Automatic car-searching system, automatic car-searching method and mobile terminal based on wireless geomagnetism detection |
| CN103365288B (en) * | 2013-08-02 | 2016-01-20 | 武汉恒达智慧城市交通研发有限公司 | A kind of method of magnetic control intelligently for storing cycle |
| CN103365288A (en) * | 2013-08-02 | 2013-10-23 | 武汉恒达智慧城市交通研发有限公司 | Intelligently magnetic control method for parking |
| CN103606295A (en) * | 2013-10-30 | 2014-02-26 | 中国科学院上海微系统与信息技术研究所 | Parking-space information detection method |
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