CN204406675U - A kind of geomagnetic parking stall detector - Google Patents
A kind of geomagnetic parking stall detector Download PDFInfo
- Publication number
- CN204406675U CN204406675U CN201520135439.5U CN201520135439U CN204406675U CN 204406675 U CN204406675 U CN 204406675U CN 201520135439 U CN201520135439 U CN 201520135439U CN 204406675 U CN204406675 U CN 204406675U
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- module
- magnetic resistance
- resistance induction
- microprocessor
- parking stall
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- Y02B60/50—
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- Geophysics And Detection Of Objects (AREA)
- Traffic Control Systems (AREA)
Abstract
The utility model relates to a kind of geomagnetic parking stall detector, belongs to technical field of vehicle detection, is made up of magnetic resistance induction module, main control module and power management module, and wherein main control module comprises microprocessor and WiFi communication module; Magnetic resistance induction module and microprocessor are bi-directionally connected, the data that microprocessor processes magnetic resistance induction module exports, and configure the correlation parameter of magnetic resistance induction module simultaneously; Power management module connects magnetic resistance induction module and main control module, for the two provides operating voltage; Microprocessor is connected with power management module, carries out the management of power supply effective utilization to it.Geomagnetic parking stall detector that the utility model provides adopts WiFi wireless transmission, and networking is simple, and dilatation ability is strong, implements, use cost is cheap.
Description
Technical field
The utility model belongs to technical field of vehicle detection, relates to a kind of geomagnetic parking stall detector.
Background technology
Along with socioeconomic develop rapidly, city automobile quantity sharply increases, and brings the problem of parking difficulty thereupon.The occupied information of Real-time Obtaining parking stall can effectively help to guide urban transportation, reduces the time that driver finds parking stall cost, reducing automobile blindly finding the energy resource consumption in way, parking stall simultaneously, saving time, economizing on resources.
Current parking stall measure mainly adopts the modes such as ultrasound examination, infra-red detection, image recognition and geomagnetism detecting.Ultrasonic detector volume little Yi installs, but necessary top set, and mounting condition is subject to certain restrictions, and installation cost is corresponding increase also; Infra-red detection accuracy of detection is lower, is vulnerable to the impact of dust, ice, mist; Image recognition provides and contains much information, but with high content of technology, and use cost is also high, and reliability is but relatively on the low side.Compared to above-mentioned detection mode, the reliability of geomagnetism detecting is high, cost is low, easy for installation, more and more extensive in the application in parking stall measure field.
Geomagnetic parking stall detector is in the market main mainly with Zigbee wireless transmission.Under mode of operation, the transfer rate of Zigbee is low, and transmitted data amount is little, and thus the transmitting-receiving time of signal is very short; During non-operating mode, Zigbee node is in park mode.Working time is short, power consumption of receiving and sending messages lower and adopt park mode, make the very power saving of Zigbee node.The shortcoming of Zigbee is that product development difficulty is large, and the construction cycle is long, and cost of products is high, and communication, through the forwarding of multiple gateway, postpones larger.WiFi is current most popular wireless communication technique, and networking is simple, and dilatation ability is strong, and be widely used, equipment price is cheap, but there is the high problem of power consumption.
Utility model content
For the problems referred to above, the utility model proposes a kind of geomagnetic parking stall detector, utilize microprocessor to carry out the management of power supply effective utilization to power management module, notice power management module enters energy-saving mode in good time, thus reduce the power consumption of whole parking space detector, extend working time.
For achieving the above object, the utility model adopts technical scheme as follows:
A kind of geomagnetic parking stall detector, be made up of magnetic resistance induction module, main control module and power management module, wherein main control module comprises microprocessor and wireless communication module.
Described wireless communication module is WiFi communication module; Described magnetic resistance induction module and microprocessor are bi-directionally connected; Described power management module connects magnetic resistance induction module and main control module; Described microprocessor is connected with power management module.
Described power management module provides operating voltage for magnetic resistance induction module and main control module, and be subject to the power supply effective utilization management of microprocessor, selectivity turns off the power supply supply of particular module simultaneously.
Described magnetic resistance induction module detects parking stall magnetic field intensity, and possesses temperature drift compensation function.
Described microprocessor exports data to magnetic resistance induction module and compares process, configures the correlation parameter of magnetic resistance induction module simultaneously, as filter times, detects frequency etc.
Described magnetic resistance induction module and being bi-directionally connected of microprocessor adopt I2C twin wire universal serial bus.
The utility model provides a kind of geomagnetic parking stall detector, adopts WiFi communication module, and WiFi wireless telecommunications are disposed extensively, technology maturation, and networking is simple, and dilatation ability is strong, and equipment cost is cheap; Utilize microprocessor to carry out the management of power supply effective utilization to power management module, solve the problem that WiFi equipment power consumption is large, increase the service time of parking space detector.
Accompanying drawing explanation
Fig. 1 is geomagnetic parking stall detector inside composition schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
A kind of geomagnetic parking stall detector, as shown in Figure 1, be made up of magnetic resistance induction module, main control module and power management module, wherein main control module comprises microprocessor and wireless communication module.Described wireless communication module is WiFi communication module; Described magnetic resistance induction module and microprocessor are bi-directionally connected; Described power management module connects magnetic resistance induction module and main control module; Described microprocessor is connected with power management module.
Described power management module provides operating voltage for magnetic resistance induction module and main control module, and be subject to the power supply effective utilization management of microprocessor, selectivity turns off the power supply supply of particular module simultaneously.
Described magnetic resistance induction module detects parking stall magnetic field intensity, because electronic devices and components have certain temperature coefficient usually, its output signal can vary with temperature and drift about, be called for short " temperature drift ", therefore in magnetic resistance induction module, temperature sensor is provided with, environment temperature is monitored, and converts temperature drift compensation signal to by related circuit, the impact that compensation temperature exports magnetic resistance induction module.
Described microprocessor exports data to magnetic resistance induction module and compares process, can configure the correlation parameter of magnetic resistance induction module simultaneously, as filter times, detects frequency etc.For ensureing the accuracy of parking stall measure, the magnetic field intensity to magnetic resistance induction module detects is needed to carry out filtering process, filter times can be arranged by microprocessor, and such as filter times is set to 30, then represent that the magnetic field intensity to continuous 30 times detect is averaged; Detect frequency and characterize the magnetic resistance induction module double time interval that magnetic field intensity is monitored, such as detecting set of frequency is 0.1S, then before representing magnetic resistance induction module once to magnetic field intensity carry out monitoring with after time interval of once magnetic field intensity being monitored be 0.1S.
Described magnetic resistance induction module and being bi-directionally connected of microprocessor adopt I2C twin wire universal serial bus.
Claims (5)
1. a geomagnetic parking stall detector, is made up of magnetic resistance induction module, main control module and power management module, and wherein main control module comprises microprocessor and wireless communication module, it is characterized in that: described wireless communication module is WiFi communication module; Described magnetic resistance induction module and microprocessor are bi-directionally connected; Described power management module connects magnetic resistance induction module and main control module; Described microprocessor is connected with power management module.
2. geomagnetic parking stall detector as claimed in claim 1, it is characterized in that: described power management module provides operating voltage for magnetic resistance induction module and main control module, be subject to the power supply effective utilization management of microprocessor, selectivity turns off the power supply supply of particular module simultaneously.
3. geomagnetic parking stall detector as claimed in claim 2, is characterized in that: described magnetic resistance induction module detects parking stall magnetic field intensity, and possesses temperature drift compensation function.
4. geomagnetic parking stall detector as claimed in claim 2, is characterized in that: described microprocessor exports data to magnetic resistance induction module and compares process, configures the correlation parameter of magnetic resistance induction module simultaneously.
5. geomagnetic parking stall detector as claimed in claim 2, is characterized in that: described magnetic resistance induction module and being bi-directionally connected of microprocessor adopt I2C twin wire universal serial bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135439.5U CN204406675U (en) | 2015-03-10 | 2015-03-10 | A kind of geomagnetic parking stall detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135439.5U CN204406675U (en) | 2015-03-10 | 2015-03-10 | A kind of geomagnetic parking stall detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204406675U true CN204406675U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520135439.5U Expired - Fee Related CN204406675U (en) | 2015-03-10 | 2015-03-10 | A kind of geomagnetic parking stall detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN204406675U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637312A (en) * | 2015-03-11 | 2015-05-20 | 南京颐丰益信息技术有限公司 | Geomagnetic parking space detector and geomagnetic parking space detection method |
| CN105702052A (en) * | 2016-04-20 | 2016-06-22 | 中国人民解放军海军工程大学 | Geomagnetic sensor and Wifi-based parking space detection apparatus and method |
| TWI660332B (en) * | 2016-12-27 | 2019-05-21 | 成都天鉑數字技術有限公司 | Parking space detection method and device |
-
2015
- 2015-03-10 CN CN201520135439.5U patent/CN204406675U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637312A (en) * | 2015-03-11 | 2015-05-20 | 南京颐丰益信息技术有限公司 | Geomagnetic parking space detector and geomagnetic parking space detection method |
| CN105702052A (en) * | 2016-04-20 | 2016-06-22 | 中国人民解放军海军工程大学 | Geomagnetic sensor and Wifi-based parking space detection apparatus and method |
| TWI660332B (en) * | 2016-12-27 | 2019-05-21 | 成都天鉑數字技術有限公司 | Parking space detection method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20180310 |