CN103956071B - The method of car is looked in a kind of parking lot - Google Patents
The method of car is looked in a kind of parking lot Download PDFInfo
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- CN103956071B CN103956071B CN201410218306.4A CN201410218306A CN103956071B CN 103956071 B CN103956071 B CN 103956071B CN 201410218306 A CN201410218306 A CN 201410218306A CN 103956071 B CN103956071 B CN 103956071B
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Abstract
The present invention relates to a kind of method that car is looked in parking lot, the method is without any need for external information, and also do not need build any network or carry out engineering construction, above and below ground can be used.The method, based on the portable electron device with three axis accelerometer, three-axis gyroscope and microprocessor, only need click the startup button of this device when stopping.The microprocessor of this device repeats constantly to gather the data of three axis accelerometer and three-axis gyroscope after this startup button is pressed by certain frequency, and the distance value calculated in earth axes between car owner and car, display on a display screen, and is become large or diminish by sound, light, this distance of vibration prompt.Car owner according to distance prompt gradually towards reduce direction walk, until close to zero time just have found.The present invention is not limited to parking lot and looks for car, and the occasion that the start position preset got back to by any needs is all applicable.
Description
Technical field
The invention belongs to a kind of method finding car in parking lot, particularly a kind of by find under guiding at the portable electron device carried with sub method of stopping.
Background technology
After Parking, later going for the position of stopping again is a very difficult thing sometimes, especially at some stranger or more complicated parking environments.In order to address this problem, there are following schemes at present.
A kind of scheme is located by GPS, and electronic chart is demarcated the position of parking, but can cause losing efficacy owing to not receiving satellite-signal for underground parking.
Another scheme is positioned by the base station of mobile communication, and this needs to install a mobile communication module on car, and takies the resource of a telephone number, and obvious cost of use is higher.
Also have a kind of scheme to be utilize indoor positioning technologies, take wireless signal to layout and network, being sent on the mobile phone of car owner by the car positional information determined, car owner just can find the position of parking by the prompting that this network system provides.The shortcoming of this scheme needs to set up the wireless network for locating.
, at each parking stall sensor installation, parking stall there is car and there be not the center management system of car in parking lot to show in some parking lot, and further, the mobile phone that this system can accomplish parking position information to be dealt into car owner later looks for car to facilitate.Obviously this scheme is also more complicated.
All methods all will relate to network and layout and communication above, and what determine is the absolute position of car on map.
In fact, car be found only to need to allow car owner know, and car and the relative distance between him are diminishing just passable gradually, finds car when this relative distance also just means close to zero.This can realize by the principle of inertial navigation.Inertial navigation is according to Newton second law in kinematics, utilize inertance element accelerometer measures acceleration, and with gyroscope etc., the attitude of moving object is corrected, by carrying out to the linear acceleration of three dimensions the displacement that twice integral operation obtains three orthogonal directionss respectively, also just distance can be calculated by these three displacements.The advantage of inertial navigation unit is without any need for external information, does not also need build any network or carry out engineering construction, and above and below ground can be used.Certainly, inertial navigation also has shortcoming, because displacement is by obtaining the integration of time, because element measuring accuracy and the error of calculation can cause the longer error calculated of time remaining larger.
At present, the electronic installation carried with is used as motion sensor as smart mobile phone, intelligent watch, electronics bracelet etc. have employed the inertance elements such as MEMS Micro-electro-mechanaccelerometer accelerometer, gyroscope, magnetometer all widely, and the iPhone mobile phone resembling Apple just have employed three axis accelerometer and the three-axis gyroscope of 16 two's complement outputs.The performance of microprocessor is also more and more higher, is also nothing difficult for a large amount of calculating of process in real time.And for looking for this application of car, computational accuracy does not need very high.
Summary of the invention
The object of the invention is the car of wishing to help people to find to park by a shirtsleeve operation mode.
To achieve these goals, the present invention is based on the portable electron device with three axis accelerometer, three-axis gyroscope and microprocessor, this device can be a smart mobile phone, or one piece of intelligent watch, also can be an electronics bracelet, facilitate car owner to carry with in a word.When car owner is after car has been stopped in parking lot, he can leave after only need clicking the startup button of this device, the microprocessor of this device repeats constantly to gather the data of three axis accelerometer and three-axis gyroscope after this startup button is pressed by certain frequency, and the distance value calculated in earth axes between car owner and car, display on a display screen, and is become large or diminish by sound, light, this distance of vibration prompt.Return to look for car when car owner finishes thing, he according to distance prompt gradually towards reduce direction walk, until close to zero time just have found.In fact, when this distance is less, car owner completely can ekphorize thus find car according to site environment.After finding car, car owner presses stopping key of this device.
The present invention is not limited to parking lot and looks for car, and the occasion that the start position preset got back to by any needs is all applicable.
Such as, tourist group is when going sight-seeing certain sight spot, and what time everybody is in this homeposition set for guide and everybody agreement, and the carry-on device of so each visitor each self-starting oneself, even if also can get back to starting point well according to distance prompt at strange environment.
For another example, the operational design of this electronic installation must be applicable to blind personage and use, so they can diminish in distance sound, get back to the departure place preset under vibration prompt.
Accompanying drawing explanation
Fig. 1 is the present invention based on portable electronic device structure schematic diagram.
Fig. 2 is the present invention based on smart mobile phone schematic appearance.
Fig. 3 is the present invention based on electronics bracelet schematic appearance.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention based on portable electronic device structure see Fig. 1, wherein three axis accelerometer is connected with microprocessor by communication interface with three-axis gyroscope, three axis accelerometer regularly produces the linear acceleration data of three dimensions by certain frequency, three-axis gyroscope also regularly produces the angular velocity data of three dimensions by certain frequency, microprocessor regularly goes get above data and calculate by communication interface, angular velocity data is by obtaining auto levelizer at the inclination angle of three dimensions after integration, the data of in the future self-acceleration meter can be transformed into the linear acceleration of three dimensions in earth axes accordingly, speed is obtained through integration, integration obtains the displacement of three dimensions again, distance is the root-mean-square valve of displacement, or adopt simple algorithm, the absolute value of the displacement of three dimensions is added and obtains distance value, also be manhatton distance.
Startup button in Fig. 1, to stop key with output enable button can be that physical button is connected with microprocessor, also can be the virtual key of touch-screen.After startup button is pressed, microprocessor is by associated storage zeros data and start to process the data from three axis accelerometer and three-axis gyroscope, and the distance value calculated regularly is delivered to display screen display, and become still to diminish greatly according to distance and export the sound, light, the vibration that are easy to the two kinds of different modes identified and divide and be clipped to hummer, luminotron, vibrating motor, output enable button exports for controlling to open to export or close.When being pressed when stopping key, microprocessor stops the execution of above-mentioned all programs.
The present invention based on smart mobile phone outward appearance see Fig. 2, smart mobile phone has possessed the hardware cells such as three axis accelerometer, three-axis gyroscope and microprocessor, only need install application software.There are three virtual keys below the display screen of mobile phone, are startup button respectively, stop key and output enable button, be input to microprocessor by touch-screen.The top of display screen is distance display, and is shown to be close to car with the sensing of arrow, and namely distance value is more and more less, otherwise when distance change is large, the direction of arrow is reverse.
The present invention based on electronics bracelet outward appearance see Fig. 3, electronics bracelet is in order to power saving and reduce costs and do not have display screen, is become near or become far away by the sound of two kinds of different modes, light, vibration prompt distance.Electronics bracelet has startup, stopping and output enable three buttons, also have luminotron and hummer, there is vibrating motor inside, if need further power saving to cancel vibrating motor.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (1)
1. the method for car is looked in a parking lot, based on having three axis accelerometer, the portable electron device of three-axis gyroscope and microprocessor, it is characterized in that: the button clicking this device at origin, the microprocessor of this device repeats by certain frequency the data constantly gathering three axis accelerometer and three-axis gyroscope after this button is pressed, and the distance value calculated in earth axes between this device and origin, display on a display screen, and be become large or diminish by sound or light or this distance of vibration prompt, the carrier of this device walks towards the direction reduced gradually according to distance prompt, until close to zero time just got back to origin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410218306.4A CN103956071B (en) | 2014-05-20 | 2014-05-22 | The method of car is looked in a kind of parking lot |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410213015.6 | 2014-05-20 | ||
| CN201410213015 | 2014-05-20 | ||
| CN2014102130156 | 2014-05-20 | ||
| CN201410218306.4A CN103956071B (en) | 2014-05-20 | 2014-05-22 | The method of car is looked in a kind of parking lot |
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| CN103956071A CN103956071A (en) | 2014-07-30 |
| CN103956071B true CN103956071B (en) | 2015-09-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017046388A1 (en) * | 2015-09-18 | 2017-03-23 | Valeo Comfort And Driving Assistance | Method for controlling a functionality of a vehicle by means of a user terminal and associated control system |
| US10129701B2 (en) | 2015-09-15 | 2018-11-13 | Mediatek Inc. | Location context managing method and electronic device |
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| LU92541B1 (en) * | 2014-09-10 | 2016-03-11 | Iee Sarl | Radar sensing of vehicle occupancy |
| CN104359483B (en) * | 2014-10-29 | 2018-08-28 | 吴云珊 | Reverse orbit navigation system and its implementation under a kind of no signal overlay environment |
| CN104390647A (en) * | 2014-11-27 | 2015-03-04 | 上海斐讯数据通信技术有限公司 | Car looking-for method and device, and car key |
| CN104700644B (en) * | 2014-12-25 | 2018-02-16 | 惠州Tcl移动通信有限公司 | A kind of method and system of automatic identification automobile position |
| CN105825701A (en) * | 2015-01-06 | 2016-08-03 | 中兴通讯股份有限公司 | Method and device for prompting vehicle parking place |
| CN104992569A (en) * | 2015-07-09 | 2015-10-21 | 苏州朗捷通智能科技有限公司 | Intelligent guidance system for building parking spots |
| CN106297367A (en) * | 2016-08-29 | 2017-01-04 | 河海大学常州校区 | A kind of underground parking lot vehicle-searching method and device |
| CN110113490B (en) * | 2019-04-30 | 2020-11-03 | 维沃移动通信有限公司 | Information processing method, terminal and computer readable storage medium |
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| EP1921590A1 (en) * | 2005-08-30 | 2008-05-14 | Matsushita Electric Industrial Co., Ltd. | Parking position search assisting apparatus, method and program |
| JP2011002324A (en) * | 2009-06-18 | 2011-01-06 | Clarion Co Ltd | Device and program for detecting position |
| CN103492837A (en) * | 2011-04-11 | 2014-01-01 | 歌乐株式会社 | Position calculation method and position calculation device |
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| US10129701B2 (en) | 2015-09-15 | 2018-11-13 | Mediatek Inc. | Location context managing method and electronic device |
| WO2017046388A1 (en) * | 2015-09-18 | 2017-03-23 | Valeo Comfort And Driving Assistance | Method for controlling a functionality of a vehicle by means of a user terminal and associated control system |
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| CN103956071A (en) | 2014-07-30 |
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