WO2016110049A1 - 车辆停放地点的提示方法及装置 - Google Patents

车辆停放地点的提示方法及装置 Download PDF

Info

Publication number
WO2016110049A1
WO2016110049A1 PCT/CN2015/081195 CN2015081195W WO2016110049A1 WO 2016110049 A1 WO2016110049 A1 WO 2016110049A1 CN 2015081195 W CN2015081195 W CN 2015081195W WO 2016110049 A1 WO2016110049 A1 WO 2016110049A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
time
data
state switching
state
Prior art date
Application number
PCT/CN2015/081195
Other languages
English (en)
French (fr)
Inventor
张晓亮
冯磊
孙卫山
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016110049A1 publication Critical patent/WO2016110049A1/zh

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/017Detecting movement of traffic to be counted or controlled identifying vehicles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/123Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for prompting a parking place of a vehicle.
  • the vehicle remote control system includes: the vehicle terminal and the remote control server.
  • the vehicle terminal includes: a vehicle host, the vehicle host includes: a wireless communication unit configured to communicate with the remote control server; a wireless positioning unit configured to acquire vehicle location information through the GPS; and a vehicle control unit coupled to the wireless communication unit and the wireless positioning unit Set to generate a control request and execute a control command.
  • the solution can be used to obtain vehicle usage information anytime and anywhere, and remotely control according to the vehicle usage information or user requirements
  • the drawback of the solution is that the vehicle needs to be pre-configured with a mobile communication module or configured with a mobile communication module for the automobile. Terminal, otherwise, the above solution cannot be implemented.
  • the embodiment of the invention provides a method and a device for prompting a parking place of a vehicle, so as to at least solve the problem that the related device cannot automatically use the smart product carried by the vehicle to automatically identify the parking position of the vehicle.
  • a method of presenting a parking place of a vehicle is provided.
  • a method for prompting a parking place of a vehicle includes: acquiring a state switching time and location information of a vehicle corresponding to the state switching time, wherein the state switching time is switched from a driving state of the vehicle to a vehicle owner walking state of the vehicle Time point; the parking place of the vehicle is prompted according to the state switching time and the position information.
  • the acquiring the state switching time includes: recording the real-time changing state data by using the sensing device configured by itself, wherein the state data includes at least one of the following: speed data, acceleration data, displacement data, and jitter data; and a variation range according to the state data. Determine the state switching time.
  • the acquiring the location information comprises: recording the real-time changing positioning data by using the satellite positioning device configured by itself, wherein the intensity of the satellite positioning signal received and transmitted by the satellite positioning device is greater than a preset threshold; after determining the state switching time, according to the state The switching time and the satellite positioning data recorded in real time calculate the coordinate data of the parking place of the vehicle.
  • acquiring the location information comprises: recording, by using a satellite positioning device configured by itself, real-time changing positioning data, wherein the satellite positioning device receives and transmits the satellite positioning signal with an intensity less than a preset threshold and gradually disappears; acquiring the satellite positioning signal disappears The location of the last recorded vehicle and the time information corresponding to the location of the most recently recorded vehicle; the coordinate data of the parking place of the vehicle is calculated based on the state switching time, the acquired time information, and the location of the last recorded vehicle.
  • the parking location of the vehicle is prompted according to the state switching time and the location information, and the state switching time and location information acquired last time are read from the storage device configured by itself, in response to the control operation of the owner; the read state is to be read.
  • the switching time and location information are presented in an electronic map within the display screen to alert the owner of the parking location of the vehicle.
  • a prompting device for a parking place of a vehicle is provided.
  • the prompting device of the parking place of the vehicle includes: an acquiring module configured to acquire a state switching time and location information of the vehicle corresponding to the state switching time, wherein the state switching time is switched from the driving state of the vehicle to the vehicle The time point of the owner's walking state; the prompting module is set to prompt the parking place of the vehicle according to the state switching time and the position information.
  • the obtaining module comprises: a first recording unit configured to record real-time changed state data by using a sensing device configured by itself, wherein the state data comprises at least one of: speed data, acceleration data, displacement data, jitter data; The unit is set to determine the state switching time according to the magnitude of the change of the state data.
  • the obtaining module comprises: a second recording unit configured to record real-time changing positioning data by using a satellite positioning device configured by itself, wherein the intensity of the satellite positioning signal received and transmitted by the satellite positioning device is greater than a preset threshold;
  • the unit is configured to calculate coordinate data of the parking place of the vehicle according to the state switching time and the satellite positioning data recorded in real time after determining the state switching time.
  • the acquiring module includes: a third recording unit configured to record real-time changing positioning data by using a satellite positioning device configured by itself, wherein the intensity of the satellite positioning signal received and transmitted by the satellite positioning device is less than a preset threshold and gradually disappears;
  • the acquiring unit is configured to acquire a location of the vehicle recorded last time before the satellite positioning signal disappears and time information corresponding to the location of the last recorded vehicle; and the second calculating unit is configured to switch the time according to the state and the obtained time information And the coordinate data of the vehicle parking place is calculated at the location of the last recorded vehicle.
  • the prompting module comprises: a reading unit configured to read the most recently acquired state switching time and position information from the storage device configured by itself in response to the control operation of the vehicle owner; the display unit is set to be read The state switching time and location information are presented in an electronic map within the display screen to alert the owner of the parking location of the vehicle.
  • the acquiring state switching time and the position information of the vehicle corresponding to the state switching time are adopted, wherein the state switching time is a time point of switching from the running state of the vehicle to the vehicle owner walking state of the vehicle; And the location information prompts the parking place of the vehicle, and solves the problem that the related technology cannot automatically identify the parking position of the vehicle by using the smart product carried by the portable technology, and then automatically recognizes the parking state and the parking position by using the smart product that is carried by the smart device, so as to better serve the vehicle. Users without the need to add additional hardware costs.
  • 1 is a prompting method of a parking place of a vehicle according to an embodiment of the present invention
  • FIG. 2 is a schematic view of a direction of a three-axis acceleration sensor in accordance with a preferred embodiment of the present invention
  • FIG. 3 is a schematic diagram of state data simulation during running of a vehicle according to a preferred embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing the simulation of a travel route of a vehicle according to a preferred embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a prompting device for a parking place of a vehicle according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing the structure of a prompting device for a parking place of a vehicle according to an embodiment of the present invention.
  • FIG. 1 is a method of presenting a parking place of a vehicle according to an embodiment of the present invention.
  • the method can be applied to a smart terminal product. As shown in FIG. 1 , the method can include the following processing steps:
  • Step S102 acquiring a state switching time and location information of the vehicle corresponding to the state switching time, wherein the state switching time is a time point when the driving state of the vehicle is switched to the vehicle owner walking state of the vehicle;
  • Step S104 prompting the parking place of the vehicle according to the state switching time and the position information.
  • the method of the vehicle shown in FIG. The information solves the problem that the related technology cannot automatically recognize the parking position of the vehicle by using the smart product carried by the portable technology, and then automatically recognizes the parking state and the parking position by using the smart product carried by the related technology, so that the user can be better served without increasing Additional hardware costs.
  • step S102 acquiring the state switching moment may include the following operations:
  • Step S1 recording real-time changing state data by using a sensing device configured by itself, wherein the state data includes at least one of the following: speed data, acceleration data, displacement data, and jitter data;
  • Step S2 Determine the state switching time according to the magnitude of the change of the state data.
  • the acceleration sensor can be activated for data acquisition, and the state data of the mobile terminal itself can be obtained by using the three-axis acceleration sensor component, and the mobile terminal (for example, a smart phone or a wearable product smart watch) can be obtained by using a three-axis acceleration sensor.
  • the speed and acceleration data of the mobile terminal can be judged whether the terminal is in a driving state or a walking state according to the acquired data, and the speed and the jitter degree in the driving state are different from the speed and the jitter degree of the user in the walking state.
  • the acquired car parking time can then be stored in the storage device of the mobile terminal.
  • acquiring location information may include the following operations:
  • Step S3 recording the real-time changing positioning data by using the satellite positioning device configured by itself, wherein the intensity of the satellite positioning signal received and transmitted by the satellite positioning device is greater than a preset threshold;
  • Step S4 After determining the state switching time, the coordinate data of the parking place of the vehicle is calculated according to the state switching time and the satellite positioning data recorded in real time.
  • the GPS chip can be started to enter a working state for data collection, obtain geographic location information of the mobile terminal, and then store the acquired data in a storage device of the mobile terminal.
  • acquiring location information may include the following operations:
  • Step S5 recording the real-time changing positioning data by using the satellite positioning device configured by itself, wherein the intensity of the satellite positioning signal received and transmitted by the satellite positioning device is less than a preset threshold and gradually disappears;
  • Step S6 acquiring the location of the vehicle recorded last time before the satellite positioning signal disappears and the time information corresponding to the location of the most recently recorded vehicle;
  • Step S7 Calculate coordinate data of the parking place of the vehicle according to the state switching time, the acquired time information, and the location of the last recorded vehicle.
  • the speed and acceleration data acquired by the triaxial acceleration sensor and the geographic location data acquired by the GPS chip can be used to determine the geographic location information at the next moment, which is suitable for when the GPS signal is weak and cannot be performed.
  • the coordinates of the acceleration sensor are used to determine the subsequent geographical coordinates. For example, when the car enters the underground garage, the geographic coordinates can also be obtained. The time when the car is parked is extracted, and the geographical location information provided by the GPS at this moment is extracted, and then stored in the storage device of the mobile terminal.
  • step S104 prompting the parking place of the vehicle according to the state switching time and the location information may include the following steps:
  • Step S8 Responding to the control operation of the vehicle owner, reading the state switching time and location information acquired last time from the storage device configured by itself;
  • Step S9 The read state switching time and position information are presented in an electronic map in the display screen, and the vehicle owner is prompted to the parking place of the vehicle.
  • the parking location data is selected by displaying a map on the display screen of the mobile terminal, where the parking time and the parking location coordinates may be included, and displayed in the corresponding location of the mobile terminal map.
  • the intelligent mobile terminal that the user personally carries can automatically use the data of the sensor and the GPS chip to determine the state switching between the driving state of the car and the walking state of the owner, and the time of the switching time and The location is the time and location of the car parking, users can use the mobile terminal display to quickly view the parking location and find the parking location.
  • FIG. 2 is a schematic view of the direction of a three-axis acceleration sensor in accordance with a preferred embodiment of the present invention.
  • the X-axis direction of the three-axis acceleration sensor can be used to indicate the forward direction
  • the Y-axis direction can be used to indicate the lateral direction
  • the Z-axis direction can be used to indicate the vertical direction.
  • the triaxial acceleration sensor can acquire acceleration data of the mobile terminal in different directions, and obtain current velocity data and displacement data.
  • the acceleration sensor is activated, data is collected according to a preset time interval (for example, 0.1 s), and the state data of the mobile terminal is obtained by using a three-axis acceleration sensor, and the mobile terminal (for example, a smart phone or a wearable product smart watch) can utilize three axes.
  • the acceleration sensor acquires speed and acceleration data of the mobile terminal. The acquired data is then stored in the storage device of the mobile terminal.
  • the mobile terminal can transmit the speed, acceleration, displacement, and geographic location coordinates of the mobile terminal acquired by the three-axis acceleration sensor and the GPS chip to the central processing unit, and then store the same in the storage device.
  • the central processor can use the stored data to determine whether the current mobile terminal is in a driving state or in a walking state, because the speed and the degree of jitter during driving are different from the speed and jitter of the vehicle owner when walking, therefore, the above two types
  • the moment when the state is switched is the time when the car is parked.
  • the GPS geographical location data obtained at this time is the location of the car parking.
  • the speed and acceleration data acquired by the three-axis acceleration sensor can also be utilized, and the geographical location data acquired by the GPS chip is used to determine the geographical location information at the next moment, for example, :
  • the location coordinates can also be obtained. The time when the car is parked is extracted, the geographical location information provided by the GPS at this moment is extracted, and the acquired data is stored in the storage device of the mobile terminal.
  • the above judgment process is as follows: assuming that the position of the car before the disappearance of the GPS signal is (x0, y0, z0), the speed of the three-axis acceleration sensor in the X, Y and Z directions is Vx0, Vy0 and Vz0, the acceleration is ax0, ay0 and az0. Record the path traveled by the car and calculate the time at the specific time by The travel distance in the X-axis, Y-axis, and Z-axis directions, respectively.
  • the above calculation method of the integral takes the X-axis direction as an example.
  • the specific calculation process is as follows:
  • the geographic location coordinates corresponding to time t are (x0+d(xt), y0+d(yt), z0+d(zt)).
  • the geographic location coordinates of the vehicle's final geographic location are (x0+d(xT), y0+d(yT), z0+d(zT)).
  • the geographical coordinates of any time between 0 and T are obtained by the above formula, and then the above series of coordinates are stored in the storage device.
  • the central processor extracts the time and geographic coordinates in the above storage device, and displays the corresponding geographic coordinates in the map presented by the display screen, and the viewed coordinate position is the position where the car is parked.
  • FIG. 3 is a schematic diagram of state data simulation during running of the vehicle in accordance with a preferred embodiment of the present invention.
  • 4 is a schematic diagram of a simulation of a travel route of a vehicle in accordance with a preferred embodiment of the present invention. As shown in FIGS. 3 and 4, it is assumed that the forward direction is the X-axis direction, and after 20 seconds of travel, the turn travels in the Y-axis direction for 20 seconds.
  • the distance traveled by the vehicle along the Y axis is also 100m.
  • FIG. 5 is a structural block diagram of a prompting device for a parking place of a vehicle according to an embodiment of the present invention.
  • the prompting device of the parking place of the vehicle can be applied to the smart terminal product.
  • the prompting device of the parking place of the vehicle may include: an acquiring module 10 configured to acquire a state switching time and a vehicle corresponding to the state switching time. Position information, wherein the state switching time is a time point when the driving state of the vehicle is switched to the vehicle owner walking state of the vehicle; and the prompting module 20 is configured to prompt the parking place of the vehicle according to the state switching time and the position information.
  • the device shown in FIG. 5 solves the problem that the related technology cannot automatically recognize the parking position of the vehicle by using the smart product carried by the portable technology, and then automatically recognizes the parking state and the parking position by using the smart product carried by the portable device, so as to better serve the vehicle. Users without the need to add additional hardware costs.
  • the obtaining module 10 may include: a first recording unit 100 configured to record real-time changed state data by using a sensing device configured by itself, wherein the state data includes at least one of the following: speed data, acceleration The data, the displacement data, the jitter data, and the determining unit 102 are configured to determine the state switching timing according to the magnitude of the change of the state data.
  • the obtaining module 10 may include: a second recording unit 104 configured to record real-time changing positioning data by using a satellite positioning device configured by itself, wherein the satellite positioning device receives and transmits the satellite positioning signal The intensity is greater than the preset threshold; the first calculating unit 106 is configured to calculate the coordinate data of the parking place of the vehicle according to the state switching time and the satellite positioning data recorded in real time after determining the state switching time.
  • the obtaining module 10 may include: a third recording unit 108 configured to record real-time changing positioning data by using a satellite positioning device configured by itself, wherein the satellite positioning device receives and transmits the satellite positioning signal The intensity is less than the preset threshold and gradually disappears; the obtaining unit 110 is configured to acquire the location of the vehicle recorded last time before the satellite positioning signal disappears and the time information corresponding to the location of the last recorded vehicle; the second calculating unit 112, setting The coordinate data of the parking place of the vehicle is calculated according to the state switching time, the acquired time information, and the location of the most recently recorded vehicle.
  • the prompting module 20 may include: a reading unit 200 configured to read the most recently acquired state switching time and position information from the storage device configured by itself, in response to the control operation of the vehicle owner;
  • the unit 202 is configured to present the read state switching time and location information in an electronic map in the display screen, and prompt the vehicle owner to the parking place of the vehicle.
  • the foregoing embodiment achieves the following technical effects (it is required that the effects are achievable by some preferred embodiments): using the technical solution provided by the embodiment of the present invention, the mobile terminal Using the acceleration sensor data and the gyroscope data as the recognition conditions, judging the change law of the motion state of the terminal, and then using GPS to perform positioning, thereby automatically identifying the parking state and the parking position by using the smart product carried by the portable device, so as to better serve user.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described, or separate them into individual integrated circuit modules, or Multiple of these modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the method and apparatus for prompting a parking place of a vehicle provided by the embodiment of the present invention have the following beneficial effects: the automatic recognition of the parking state and the parking position by using the smart product carried by the embodiment can better serve the user without increasing Additional hardware costs.

Abstract

一种车辆停放地点的提示方法及装置,该方法包括,步骤S102,获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;步骤S104,根据状态切换时刻和位置信息提示车辆的停放地点。根据该提示方法及装置,利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户,且无需增加额外的硬件成本。

Description

车辆停放地点的提示方法及装置 技术领域
本发明涉及通信领域,具体而言,涉及一种车辆停放地点的提示方法及装置。
背景技术
目前,伴随着生活水平的逐步提高,部分家庭拥有了自己的汽车,但是专属的停车位却并没有随之配备完全,因此,大多数人还需要在公共停车场或者公共道路的马路边进行停车,由此易造成停车位置不断发生变化,经常会出现有人遗忘昨天,甚至前几天停车的位置,因此,需要提供一种解决方案能够协助车主记录停车的位置,并及时提醒车主停车的方位,以便于车主顺利地找到自己的车辆。
相关技术中一些汽车厂家为汽车配置了第三代移动通信技术(3G)通信模块和全球定位系统(GPS)芯片,或者,配备3G通信模块和GPS芯片的移动终端,汽车或移动终端可以将GPS定位的信息发送至服务器,然后用户再利用手机或者电脑从服务器查看汽车定位信息,具体解决方案如下:汽车远程控制系统包括:车载终端及远程控制服务器。车载终端包括:车载主机,车载主机包括:无线通信单元,设置为与远程控制服务器进行通信;无线定位单元,设置为通过GPS获取车辆位置信息;车辆控制单元,与无线通信单元和无线定位单元相连,设置为产生控制请求,执行控制指令。尽管利用该解决方案可以随时随地获取汽车使用信息,并根据汽车使用信息或用户需求进行远程控制,但是,该解决方案的缺陷在于:需要汽车预先配置移动通信模块或者为汽车配置带移动通信模块的终端,否则,上述解决方案无法实施。
随着智能产品的迅速崛起,例如:智能手机和智能穿戴设备的逐步普及,越来越多的人会随身携带智能手机或智能穿戴产品,这类产品自身会配备多种类型的传感器件,例如:加速度传感器、陀螺仪和GPS芯片,然而,相关技术中并没有提供利用这类随身携带的智能产品自动识别车辆停放位置的解决方案。
发明内容
本发明实施例提供了一种车辆停放地点的提示方法及装置,以至少解决相关技术中无法利用随身携带的智能产品自动识别车辆停放位置的问题。
根据本发明实施例的一个方面,提供了一种车辆停放地点的提示方法。
根据本发明实施例的车辆停放地点的提示方法包括:获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;根据状态切换时刻和位置信息提示车辆的停放地点。
优选地,获取状态切换时刻包括:利用自身配置的感应器件记录实时变化的状态数据,其中,状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;根据状态数据的变化幅度确定状态切换时刻。
优选地,获取位置信息包括:利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;在确定状态切换时刻后,根据状态切换时刻以及实时记录的卫星定位数据计算车辆停放地点的坐标数据。
优选地,获取位置信息包括:利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;获取在卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;根据状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算车辆停放地点的坐标数据。
优选地,根据状态切换时刻和位置信息提示车辆的停放地点包括:响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的状态切换时刻和位置信息;将读取到的状态切换时刻和位置信息呈现在显示屏幕内的电子地图中,向车主提示车辆的停放地点。
根据本发明实施例的另一方面,提供了一种车辆停放地点的提示装置。
根据本发明实施例的车辆停放地点的提示装置包括:获取模块,设置为获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;提示模块,设置为根据状态切换时刻和位置信息提示车辆的停放地点。
优选地,获取模块包括:第一记录单元,设置为利用自身配置的感应器件记录实时变化的状态数据,其中,状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;确定单元,设置为根据状态数据的变化幅度确定状态切换时刻。
优选地,获取模块包括:第二记录单元,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;第一计算单元,设置为在确定状态切换时刻后,根据状态切换时刻以及实时记录的卫星定位数据计算车辆停放地点的坐标数据。
优选地,获取模块包括:第三记录单元,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;获取单元,设置为获取在卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;第二计算单元,设置为根据状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算车辆停放地点的坐标数据。
优选地,提示模块包括:读取单元,设置为响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的状态切换时刻和位置信息;显示单元,设置为将读取到的状态切换时刻和位置信息呈现在显示屏幕内的电子地图中,向车主提示车辆的停放地点。
通过本发明实施例,采用获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;根据状态切换时刻和位置信息提示车辆的停放地点,解决了相关技术中无法利用随身携带的智能产品自动识别车辆停放位置的问题,进而利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户,且无需增加额外的硬件成本。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据本发明实施例的车辆停放地点的提示方法;
图2是根据本发明优选实施例的三轴加速度传感器方向的示意图;
图3是根据本发明优选实施例的车辆行驶过程中的状态数据模拟示意图;
图4是根据本发明优选实施例的车辆行驶路线的模拟示意图;
图5是根据本发明实施例的车辆停放地点的提示装置的结构框图;
图6是根据本发明实施例的车辆停放地点的提示装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
图1是根据本发明实施例的车辆停放地点的提示方法。该方法可以应用于智能终端产品中,如图1所示,该方法可以包括以下处理步骤:
步骤S102:获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;
步骤S104:根据状态切换时刻和位置信息提示车辆的停放地点。
相关技术中,无法利用随身携带的智能产品自动识别车辆停放位置。采用如图1所示的方法,通过获取由车辆的行驶状态切换至车辆的车主步行状态的切换时间点以及与该切换时间点对应的车辆所在的位置信息,从而为车主提供车辆停放地点的提示信息,由此解决了相关技术中无法利用随身携带的智能产品自动识别车辆停放位置的问题,进而利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户,且无需增加额外的硬件成本。
优选地,在步骤S102中,获取状态切换时刻可以包括以下操作:
步骤S1:利用自身配置的感应器件记录实时变化的状态数据,其中,状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;
步骤S2:根据状态数据的变化幅度确定状态切换时刻。
在优选实施例中,可以启动加速度传感器进行数据采集,通过利用三轴加速度传感器件获取移动终端自身的状态数据,移动终端(例如:智能手机或者可穿戴产品智能手表)可以利用三轴加速度传感器获得移动终端的速度、加速度数据,根据获取到的数据可以判断该终端是位于开车的状态还是位于走路的状态,开车状态下的速度和抖动程度与用户在走路状态下的速度和抖动程度不同。而在这两种状态发生切换的时刻,即为汽车停放的时间,然后可以将获取到的汽车停放时间存储在移动终端的存储器件中。
优选地,在步骤S102中,获取位置信息可以包括以下操作:
步骤S3:利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;
步骤S4:在确定状态切换时刻后,根据状态切换时刻以及实时记录的卫星定位数据计算车辆停放地点的坐标数据。
在优选实施例中,可以启动GPS芯片进入工作状态进行数据采集,获取移动终端的地理位置信息,然后再将获取到的数据存储在移动终端的存储器件中。
优选地,在步骤S102中,获取位置信息可以包括以下操作:
步骤S5:利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;
步骤S6:获取在卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;
步骤S7:根据状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算车辆停放地点的坐标数据。
在优选实施例中,可以利用三轴加速度传感器获取到的速度和加速度数据,以及利用GPS芯片获取到的地理位置数据,判断下一时刻的地理位置信息,其适用于当GPS信号弱,无法进行GPS定位时,通过加速度传感器的数据判断后续的地理位置坐标,例如:当汽车进入地下车库时,亦可以获得地理位置坐标。提取汽车停放时的时间,以及提取此时刻GPS提供的地理位置信息,然后再存储至移动终端的存储器件中。
优选地,在步骤S104中,根据状态切换时刻和位置信息提示车辆的停放地点可以包括以下步骤:
步骤S8:响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的状态切换时刻和位置信息;
步骤S9:将读取到的状态切换时刻和位置信息呈现在显示屏幕内的电子地图中,向车主提示车辆的停放地点。
在优选实施例中,通过在移动终端的显示屏上显示地图,选择提取停车位置数据,其中,可以包括:停车时间和停车地理位置坐标,显示在移动终端地图的相应位置, 以便于车主及时查看汽车停放位置,由此可以实现让用户个人随身携带的智能移动终端自动利用传感器和GPS芯片的数据判断在汽车行驶状态与车主步行状态之间的状态切换,切换时刻的时间与地点即为汽车停放的时间和位置,用户可以利用移动终端显示器快速地查看停放位置,查找停车的位置。
作为本发明的一个优选实施例,图2是根据本发明优选实施例的三轴加速度传感器方向的示意图。如图2所示,三轴加速度传感器的X轴方向可以用来表示前向,Y轴方向可以用来表示侧向,Z轴方向可以用来表示竖直方向。
采用三轴加速度传感器在采集人类在步行时的典型测量结果可以发现:人类在跑步时,每秒行进最多不超过5步;而人类在步行时,最迟在每两2秒便会行进一步,因此,人类步行频率基本保持在0.5到5Hz,其中,Hz为每秒发生次数的单位。三轴加速度传感器可以采集不同方向上移动终端的加速度数据,并且获得当前的速度数据,以及位移数据。启动加速度传感器,按照预设时间间隔(例如:0.1s)进行数据采集,利用三轴加速度传感器件获取移动终端自身状态数据,移动终端(例如:智能手机或者可穿戴产品智能手表)可以利用三轴加速度传感器获取移动终端的速度、加速度数据。然后再将获取到的数据存储至移动终端的存储器件中。
而在GPS芯片启动后,还可以获取多个卫星的数据,利用此数据便可以计算出当前移动终端的地理位置坐标数据。移动终端可以将三轴加速度传感器、GPS芯片获取到的移动终端的速度、加速度、位移以及地理位置坐标发送至中央处理器,然后再存储至存储器件中。中央处理器可以利用上述存储的数据,判断当前移动终端是处于开车状态还是处于行走状态,由于在开车时的速度和抖动程度与车主在走路时的速度和抖动程度不同,因此,在上述两种状态发生切换的时刻即为汽车停放的时间。而在此时获得的GPS地理位置数据即为汽车停车的位置。
在GPS信号较弱无法进行GPS准确定位的情况下,还可以利用三轴加速度传感器获取到的速度和加速度数据,再利用GPS芯片获取到的地理位置数据,判断下一时刻的地理位置信息,例如:当汽车进入地下车库时,亦可以获得地理位置坐标。提取汽车停放时的时间,提取此时刻GPS提供的地理位置信息,将获取的数据存储在移动终端的存储器件中。
在优选实施过程中,上述判断过程如下:假设GPS信号消失前汽车的位置为(x0,y0,z0),此时三轴加速度传感器在X,Y和Z轴方向上的速度为Vx0,Vy0和Vz0,加速度为ax0,ay0和az0。对汽车行进的路径进行记录,通过积分计算在特定时间t 时,分别在X轴、Y轴以及Z轴方向上的行进距离。上述积分计算方法以X轴方向为例,具体计算过程如下:
Figure PCTCN2015081195-appb-000001
其中,
Figure PCTCN2015081195-appb-000002
与时间t对应的地理位置坐标为(x0+d(xt),y0+d(yt),z0+d(zt))。
如果在汽车停车时所经过的时间为T,则车辆最终所在地理位置的地理位置坐标为(x0+d(xT),y0+d(yT),z0+d(zT))。由上述公式获得0到T之间任一时间的地理位置坐标,然后再将上述一系列坐标存储至存储器件中。
中央处理器提取上述存储器件中的时间和地理坐标,并在显示屏幕呈现的地图中显示相应的地理坐标,所查看到的坐标位置即为汽车停放的位置。
其中,当汽车存放到地下车库无GPS信号区域时,在地图上显示由地理位置行车的行车路径和停车位置。以下举例模拟汽车行驶速度和路线,图3是根据本发明优选实施例的车辆行驶过程中的状态数据模拟示意图。图4是根据本发明优选实施例的车辆行驶路线的模拟示意图。如图3和图4所示,假设首先前行方向为沿X轴方向,行驶20秒后转弯沿Y轴方向行驶20秒。在首先沿X轴方向行驶时,其初始速度为0,加速度前10秒为1,后10秒为-1;当转弯至沿Y轴行驶时,其初始速度为0,加速度前10秒为1,后10秒为-1。因此,可以计算出车辆沿X轴方向的行驶距离为100m,其中,前10秒行驶距离为50m,其依据的公式为:d1=1/2at2;后10秒行驶距离为50m,其依据的公式为:d2=1/2a(t-20)2
同理,还可以计算出车辆沿Y轴行驶的距离同样为100m。
图5是根据本发明实施例的车辆停放地点的提示装置的结构框图。该车辆停放地点的提示装置可以应用于智能终端产品,如图5所示,该车辆停放地点的提示装置可以包括:获取模块10,设置为获取状态切换时刻以及与状态切换时刻对应的车辆所在的位置信息,其中,状态切换时刻是由车辆的行驶状态切换至车辆的车主步行状态的时间点;提示模块20,设置为根据状态切换时刻和位置信息提示车辆的停放地点。
采用如图5所示的装置,解决了相关技术中无法利用随身携带的智能产品自动识别车辆停放位置的问题,进而利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户,且无需增加额外的硬件成本。
优选地,如图6所示,获取模块10可以包括:第一记录单元100,设置为利用自身配置的感应器件记录实时变化的状态数据,其中,状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;确定单元102,设置为根据状态数据的变化幅度确定状态切换时刻。
优选地,如图6所示,获取模块10可以包括:第二记录单元104,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;第一计算单元106,设置为在确定状态切换时刻后,根据状态切换时刻以及实时记录的卫星定位数据计算车辆停放地点的坐标数据。
优选地,如图6所示,获取模块10可以包括:第三记录单元108,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;获取单元110,设置为获取在卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;第二计算单元112,设置为根据状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算车辆停放地点的坐标数据。
优选地,如图6所示,提示模块20可以包括:读取单元200,设置为响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的状态切换时刻和位置信息;显示单元202,设置为将读取到的状态切换时刻和位置信息呈现在显示屏幕内的电子地图中,向车主提示车辆的停放地点。
从以上的描述中,可以看出,上述实施例实现了如下技术效果(需要说明的是这些效果是某些优选实施例可以达到的效果):采用本发明实施例所提供的技术方案,移动终端利用加速度传感器数据和陀螺仪数据作为识别条件,判断终端的运动状态的变化规律,然后再利用GPS进行定位,以此利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
如上所述,本发明实施例提供的一种车辆停放地点的提示方法及装置具有以下有益效果:利用随身携带的智能产品自动识别停车状态和停车位置,可以更好地服务于用户,且无需增加额外的硬件成本。

Claims (10)

  1. 一种车辆停放地点的提示方法,包括:
    获取状态切换时刻以及与所述状态切换时刻对应的车辆所在的位置信息,其中,所述状态切换时刻是由所述车辆的行驶状态切换至所述车辆的车主步行状态的时间点;
    根据所述状态切换时刻和所述位置信息提示所述车辆的停放地点。
  2. 根据权利要求1所述的方法,其中,获取所述状态切换时刻包括:
    利用自身配置的感应器件记录实时变化的状态数据,其中,所述状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;
    根据所述状态数据的变化幅度确定所述状态切换时刻。
  3. 根据权利要求2所述的方法,其中,获取所述位置信息包括:
    利用自身配置的卫星定位器件记录实时变化的定位数据,其中,所述卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;
    在确定所述状态切换时刻后,根据所述状态切换时刻以及实时记录的卫星定位数据计算所述车辆停放地点的坐标数据。
  4. 根据权利要求2所述的方法,其中,获取所述位置信息包括:
    利用自身配置的卫星定位器件记录实时变化的定位数据,其中,所述卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;
    获取在所述卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;
    根据所述状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算所述车辆停放地点的坐标数据。
  5. 根据权利要求1至4中任一项所述的方法,其中,根据所述状态切换时刻和所述位置信息提示所述车辆的停放地点包括:
    响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的所述状态切换时刻和所述位置信息;
    将读取到的所述状态切换时刻和所述位置信息呈现在显示屏幕内的电子地图中,向所述车主提示所述车辆的停放地点。
  6. 一种车辆停放地点的提示装置,包括:
    获取模块,设置为获取状态切换时刻以及与所述状态切换时刻对应的车辆所在的位置信息,其中,所述状态切换时刻是由所述车辆的行驶状态切换至所述车辆的车主步行状态的时间点;
    提示模块,设置为根据所述状态切换时刻和所述位置信息提示所述车辆的停放地点。
  7. 根据权利要求6所述的装置,其中,所述获取模块包括:
    第一记录单元,设置为利用自身配置的感应器件记录实时变化的状态数据,其中,所述状态数据包括以下至少之一:速度数据、加速度数据、位移数据、抖动数据;
    确定单元,设置为根据所述状态数据的变化幅度确定所述状态切换时刻。
  8. 根据权利要求7所述的装置,其中,所述获取模块包括:
    第二记录单元,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,所述卫星定位器件接收与发射的卫星定位信号的强度大于预设阈值;
    第一计算单元,设置为在确定所述状态切换时刻后,根据所述状态切换时刻以及实时记录的卫星定位数据计算所述车辆停放地点的坐标数据。
  9. 根据权利要求7所述的装置,其中,所述获取模块包括:
    第三记录单元,设置为利用自身配置的卫星定位器件记录实时变化的定位数据,其中,所述卫星定位器件接收与发射的卫星定位信号的强度小于预设阈值并逐渐消失;
    获取单元,设置为获取在所述卫星定位信号消失前最近一次记录的车辆所在位置以及与最近一次记录的车辆所在位置对应的时间信息;
    第二计算单元,设置为根据所述状态切换时刻、获取到的时间信息以及最近一次记录的车辆所在位置计算所述车辆停放地点的坐标数据。
  10. 根据权利要求6至9中任一项所述的装置,其中,所述提示模块包括:
    读取单元,设置为响应车主的控制操作,从自身配置的存储器件中读取最近一次获取到的所述状态切换时刻和所述位置信息;
    显示单元,设置为将读取到的所述状态切换时刻和所述位置信息呈现在显示屏幕内的电子地图中,向所述车主提示所述车辆的停放地点。
PCT/CN2015/081195 2015-01-06 2015-06-10 车辆停放地点的提示方法及装置 WO2016110049A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510007319.1 2015-01-06
CN201510007319.1A CN105825701A (zh) 2015-01-06 2015-01-06 车辆停放地点的提示方法及装置

Publications (1)

Publication Number Publication Date
WO2016110049A1 true WO2016110049A1 (zh) 2016-07-14

Family

ID=56355460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/081195 WO2016110049A1 (zh) 2015-01-06 2015-06-10 车辆停放地点的提示方法及装置

Country Status (2)

Country Link
CN (1) CN105825701A (zh)
WO (1) WO2016110049A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110956847A (zh) * 2019-12-20 2020-04-03 奇瑞汽车股份有限公司 车位的识别方法、装置及存储介质
EP3878718A1 (en) * 2020-03-13 2021-09-15 Faurecia Clarion Electronics Co., Ltd. Remote control determination device and remote control determination system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106023630B (zh) * 2015-08-28 2018-11-20 千寻位置网络有限公司 自动判别停车位置的方法及其装置
CN107862889A (zh) * 2017-10-10 2018-03-30 厦门盈趣科技股份有限公司 一种室内找寻停车路线的系统及方法
CN109727477A (zh) * 2017-10-31 2019-05-07 长城汽车股份有限公司 停车场智能寻车方法及寻车系统
EP3506234A1 (de) * 2017-12-27 2019-07-03 Skidata Ag Verfahren zur ermittlung des abstellplatzes eines fahrzeugs
CN109121084A (zh) * 2018-10-08 2019-01-01 广州小鹏汽车科技有限公司 车辆、移动终端及其寻车方法、装置和系统
CN110392346B (zh) * 2019-07-30 2021-03-19 Oppo(重庆)智能科技有限公司 记录停车位置的方法、移动终端、计算机存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005321868A (ja) * 2004-05-06 2005-11-17 Hitachi Kokusai Electric Inc 駐車場管理システム
CN101238500A (zh) * 2005-08-30 2008-08-06 松下电器产业株式会社 停车位置搜索支援装置、方法以及程序
CN101504424A (zh) * 2009-01-09 2009-08-12 南京航空航天大学 微型多功能人体姿态智能检测仪及检测方法
CN103313389A (zh) * 2013-07-02 2013-09-18 公安部第三研究所 基于无线定位技术实现反向寻车停车控制的系统及方法
CN103473949A (zh) * 2013-09-24 2013-12-25 张忠义 一种可反向寻车的结合车机的停车场停车定位方法
CN103956071A (zh) * 2014-05-20 2014-07-30 徐敬 一种停车场找车的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004029899A1 (en) * 2002-09-24 2004-04-08 Sergio Szulanski Means of signalling of public transportation by the visually handicapped
JP2008097251A (ja) * 2006-10-11 2008-04-24 Toyota Central R&D Labs Inc 渋滞予測装置、運転支援装置、及び運転支援システム
JP5712530B2 (ja) * 2010-09-02 2015-05-07 カシオ計算機株式会社 測位装置、測位方法、及び、プログラム
US10145707B2 (en) * 2011-05-25 2018-12-04 CSR Technology Holdings Inc. Hierarchical context detection method to determine location of a mobile device on a person's body
US8606499B2 (en) * 2011-12-16 2013-12-10 Navteq B.V. Method and apparatus for determining parking area location information
CN202650264U (zh) * 2012-05-03 2013-01-02 梁笃国 一种基于定位技术进行服务主动推送的系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005321868A (ja) * 2004-05-06 2005-11-17 Hitachi Kokusai Electric Inc 駐車場管理システム
CN101238500A (zh) * 2005-08-30 2008-08-06 松下电器产业株式会社 停车位置搜索支援装置、方法以及程序
CN101504424A (zh) * 2009-01-09 2009-08-12 南京航空航天大学 微型多功能人体姿态智能检测仪及检测方法
CN103313389A (zh) * 2013-07-02 2013-09-18 公安部第三研究所 基于无线定位技术实现反向寻车停车控制的系统及方法
CN103473949A (zh) * 2013-09-24 2013-12-25 张忠义 一种可反向寻车的结合车机的停车场停车定位方法
CN103956071A (zh) * 2014-05-20 2014-07-30 徐敬 一种停车场找车的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110956847A (zh) * 2019-12-20 2020-04-03 奇瑞汽车股份有限公司 车位的识别方法、装置及存储介质
EP3878718A1 (en) * 2020-03-13 2021-09-15 Faurecia Clarion Electronics Co., Ltd. Remote control determination device and remote control determination system

Also Published As

Publication number Publication date
CN105825701A (zh) 2016-08-03

Similar Documents

Publication Publication Date Title
WO2016110049A1 (zh) 车辆停放地点的提示方法及装置
US11721098B2 (en) Augmented reality interface for facilitating identification of arriving vehicle
US10533857B2 (en) User terminal and control method thereof
CN102164344B (zh) 盲人导航手机
CN104575079B (zh) 一种停车场内车辆定位方法及寻车方法
CN105594267B (zh) 用于室内位置道路查找的虚拟面包屑
US20160343249A1 (en) Methods and devices for processing traffic data
US7847709B2 (en) Multimode vehicle location device and method
CN108318043A (zh) 用于更新电子地图的方法、装置和计算机可读存储介质
CN105976636B (zh) 一种利用增强现实技术的停车场寻车系统及其寻车方法
US9396541B2 (en) Positioning control method
CN108389028B (zh) 行程提醒的方法、装置及移动终端
CN111524381B (zh) 一种停车位置的推送方法、装置、系统及电子设备
CN104021694A (zh) 用于确定停车信息的设备和方法
JP6603506B2 (ja) 駐車位置案内システム
CN112455331A (zh) 车辆防撞预警方法、系统及车载计算机设备
CN111352142A (zh) 室内停车定位方法、装置、电子设备和介质
CN106606407A (zh) 一种室内高精度盲人导航系统
CN106197415A (zh) 终端对可穿戴设备的跟踪方法、装置
CN106842272B (zh) 停车场内生成停车轨迹的方法、系统及装置
JP4800252B2 (ja) 車載装置及び交通情報提示方法
CN107727092A (zh) 信息提醒方法、装置及电子设备
CN111028532A (zh) 基于车联网的室内寻车方法、车辆及室内寻车系统
KR20170059352A (ko) 주차위치 알림 시스템과 이를 구현하기에 적합한 차량정보 수집장치
CN112866915B (zh) 导航信息处理方法、装置、电子设备及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15876555

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15876555

Country of ref document: EP

Kind code of ref document: A1