WO2018227697A1 - 物联网定位方法、装置及系统 - Google Patents

物联网定位方法、装置及系统 Download PDF

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Publication number
WO2018227697A1
WO2018227697A1 PCT/CN2017/093384 CN2017093384W WO2018227697A1 WO 2018227697 A1 WO2018227697 A1 WO 2018227697A1 CN 2017093384 W CN2017093384 W CN 2017093384W WO 2018227697 A1 WO2018227697 A1 WO 2018227697A1
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WIPO (PCT)
Prior art keywords
target device
location
information
user terminal
relay
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/093384
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English (en)
French (fr)
Inventor
杜光东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Shenglu IoT Communication Technology Co Ltd
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Shenzhen Shenglu IoT Communication Technology Co Ltd
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Publication of WO2018227697A1 publication Critical patent/WO2018227697A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention belongs to the technical field of Internet of Things, and in particular, to an Internet of Things positioning method, apparatus, and system.
  • GPS Global Positioning System
  • An object of the present invention is to provide an Internet of Things (IoT) positioning method, device, and system, which are intended to solve the problem of high power consumption and high cost of the positioning module in the current positioning device.
  • IoT Internet of Things
  • An object of the present invention is to provide an Internet of Things (IoT) positioning method, device, and system, which are intended to solve the problem of high power consumption and high cost of the positioning module in the current positioning device.
  • IoT Internet of Things
  • a first aspect of the embodiments of the present invention provides an Internet of Things (IoT) positioning method, including:
  • the determining, according to the distance information sent by the multiple relay devices, the location of the target device including: acquiring location information of the transit device Deriving the target according to the position information of the relay device and the distance information sent by the plurality of relay devices The location of the standard device.
  • the determining, according to the distance information sent by the multiple relay devices, the location where the target device is located, the method further includes: sending, to the user terminal, Optimal route information between the location of the user terminal and the location of the target device to cause the user terminal to display the optimal route information on a map.
  • the method further includes: acquiring image information of a location of the target device collected by the image collection device
  • a second aspect of the embodiments of the present invention provides an Internet of Things (GPS) positioning apparatus, including:
  • a receiving unit configured to receive distance information of the relay device and the target device sent by the relay device, where the distance information is obtained by the relay device according to a signal strength of communication between the relay device and the target device;
  • a processing unit configured to obtain, according to the distance information sent by the plurality of the relay devices, a location where the target device is located;
  • a sending unit configured to send location information of the target device to the user terminal.
  • the method further includes: an alarm unit, configured to send the alarm information to the user terminal after detecting that the location information of the target device exceeds the preset area.
  • the sending unit is further configured to send, to the user terminal, optimal route information between the location of the user terminal and the location of the target device, So that the user terminal displays the optimal route information on a map.
  • the method further includes: an acquiring unit, configured to acquire, where the target device is collected by the image collecting device The image information of the location; the sending unit is further configured to send the image information to the user terminal
  • a third aspect of the embodiments of the present invention provides an Internet of Things positioning system, including a positioning device and a target. Device, relay device and user terminal;
  • the target device is configured to communicate with the relay device
  • the relay device is configured to obtain distance information from the target device according to a signal strength of the communication device and the target device, and send the distance information to the positioning device;
  • the positioning device is configured to receive distance information sent by the plurality of the relay devices, and obtain a location where the target device is located according to the distance information sent by the plurality of the relay devices;
  • the user terminal is configured to receive location information of the target device sent by the positioning device.
  • the distance information of the target device is transmitted through the distance information of the target device, and the position information of the target device is obtained, thereby realizing the positioning of the target device.
  • the embodiment of the present invention can realize the positioning function only by the communication module without using the GPS positioning module, thereby reducing the cost and power consumption of the positioning device, and facilitating the scale implementation of the positioning device.
  • FIG. 1 is a schematic diagram of a scene of a target device and a relay device in an Internet of Things positioning system according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an implementation of an Internet of Things positioning method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of an implementation of an alarm in an Internet of Things positioning method according to an embodiment of the present invention
  • FIG. 4 is a flowchart of implementing an recommended optimal route in an Internet of Things positioning method according to an embodiment of the present invention
  • FIG. 5 is a flowchart of an implementation of image collection in an Internet of Things positioning method according to an embodiment of the present invention.
  • FIG. 6 is an interaction flowchart of an Internet of Things positioning system according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of an Internet of Things positioning apparatus according to an embodiment of the present invention.
  • FIG. 8 is a hardware block diagram of an Internet of Things positioning apparatus according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of an Internet of Things positioning system according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a scenario of a target device and a relay device in an Internet of Things positioning system according to an embodiment of the present invention.
  • the circle represents the target device
  • the rectangle represents the relay device.
  • the solid line represents the position before the target device moves
  • the dotted line represents the position after the target device moves.
  • the arrows indicate communication between the target device and the relay device.
  • the target device can communicate with a relay device within the coverage of the wireless signal. Before the target device moves, it communicates with the three relay devices within the coverage of the wireless signal; after the target device moves, it communicates with the four relay devices within the coverage of the wireless signal.
  • the relay device In the area where positioning is required, the relay device is arranged in multiple places, so that the wireless signal of the relay device covers the entire area.
  • the positioning area can include both indoors and outdoors.
  • the accuracy of the positioning method is higher than the accuracy of the positioning of the GPS positioning module, and depending on the scene, the area and the demand, the position and number of the relay device can be adjusted to achieve different positioning effects.
  • Target devices include, but are not limited to, power modules, communication modules, and processing modules.
  • the power module supplies power to the target unit.
  • the power module can be powered by a battery or by converting solar energy into electrical energy through a solar panel.
  • the button battery can be used in combination with the solar power panel for power supply.
  • the shape of the target device may adopt a portable card or ring type.
  • the target device can be worn by the protected target.
  • Protected targets include, but are not limited to, children, the elderly, patients, and pets.
  • the protected target can also be an important item such as a car, and the target device can be fixedly placed on the protected object.
  • the relay device includes, but is not limited to, a power module, a communication module, and a processing module.
  • the wireless communication mode that the communication module can implement includes a wireless communication mode of the target device, so that communication between the relay device and the target device is performed.
  • the relay device can also implement ZigBee communication and can establish a communication connection with the target device within the coverage of the wireless signal.
  • the relay device can selectively increase the wired communication mode according to the actual situation. For example, optical fiber communication, power line carrier communication, and the like are added.
  • the relay device can be arranged on the street lamps on both sides of the road. Beside the trash can on the column, in the small area or on both sides of the street and on some other fixed public facilities.
  • FIG. 2 is a flowchart of implementing an Internet of Things positioning method according to an embodiment of the present invention, which is as follows:
  • the distance information is obtained by the relay device according to a signal strength of communication between the relay device and the target device.
  • the target device communicates with the relay device within the coverage of the wireless signal.
  • the relay device analyzes the signal strength of the communication with the target device, obtains a distance from the target device, generates distance information, and transmits the distance information to the positioning device.
  • the positioning device receives the distance f ⁇ transmitted by the relay device.
  • the target device communicates with one or more relay devices within the coverage of the wireless signal.
  • the communication between the target device and the relay device may be that the communication signal is sent by the target device, the relay device communicates after responding, or the communication connection signal is sent by the relay device, and the target device responds and then communicates.
  • the target device may transmit a communication connection signal to the outside in the form of a broadcast. After receiving one of the communication connection signals, the one or more relay devices within the coverage of the wireless signal respond to the connection request of the target device. Alternatively, the relay device can transmit a communication connection signal to the outside in the form of a broadcast. After receiving one of the communication connection signals, the one or more target devices within the coverage of the wireless signal answer the connection request of the relay device.
  • a connection key may be set for the target device and the relay device, and the communication may be performed after the key verification is successful, and if the key verification fails, the two parties cannot connect.
  • the influence of communication between multiple positioning systems in one area can be avoided, and a part of the target devices in the current area can be shielded according to actual needs.
  • the relay device can identify the target device by the communication address.
  • Each target device has a unique communication address, and when the relay device communicates with the target device, the different target devices can be distinguished by the communication address.
  • Each relay device has a unique communication address so that the positioning device and the target device distinguish between different relay devices.
  • each target device is provided with unique identification information. After communicating with the relay device, the target device transmits identification information to the relay device, so that the relay device records the target device with the identification information.
  • Each relay device is provided with unique identification information to distinguish the target device from the positioning device .
  • the relay device communicates with the target device, and transmits the identification information to the target device.
  • the relay device communicates with the positioning device, and transmits the identification information to the positioning device.
  • the signal strength during wireless signal transmission is related to the distance between the transmitting end and the receiving end.
  • the transmission model can be constructed based on the signal strength and transmission distance of the wireless signal. Different wireless signals can have different transmission models or different parameters for the same model. For example, the transmission model of the Wi-Fi wireless signal and the transmission model of the ZigBee wireless signal can select an appropriate transmission model according to the actual situation.
  • the relay device generates a received signal strength indication (Resived Signal Strength Indication, RSS1) according to the signal strength of the communication with the target device, and substitutes a transmission model of the wireless signal to calculate a distance between the relay device and the target device.
  • RSS1 Received Signal Strength Indication
  • the distance information is generated and sent to the positioning device.
  • the relay device may store a list of signal strengths and distances generated according to the transmission model calculation.
  • the relay device When the relay device communicates with the target device, the relay device acquires the signal strength, and then finds the distance corresponding to the signal strength in the list, which is the distance between the relay device and the target device, generates distance information, and transmits the distance information to the positioning device. Thereby, it is possible to shorten the time interval in which the relay device generates the distance information, reduce the inter-turn error of the positioning of the target device, and improve the inter-turn accuracy of the positioning.
  • the relay device After the relay device generates the distance information, it compares with the distance information generated last time. If the distance information coincides with the distance information generated last time, it indicates that the distance between the target device and the relay device has not changed, and thus the distance information is not transmitted to the positioning device. If the distance information does not coincide with the distance information generated last time, it indicates that the distance between the target device and the relay device changes, and the distance information is transmitted to the positioning device. Thereby, the amount of information transmitted by the relay device can be reduced without affecting the positioning, the processing task of the communication module in the relay device can be reduced, and the power consumption of the relay device can be reduced.
  • the target device transmits the data to the relay device for communication.
  • the traditional Internet Protocol data packet is in the process of communication between the two parties.
  • the traditional Internet Protocol data packet contains the data format of retransmission and response.
  • the target device After the data transmission is performed, after the target device transmits a set of data, the target device does not resend the data regardless of whether the data is successfully received by the relay device. Because the purpose of the communication between the target device and the relay device is to enable the relay device to obtain the identification information or the communication address of the target device, and calculate the distance according to the signal strength, and the target device communicates with the relay device once every other end, so In multiple communications, the data sent by a target device fails to be successfully received, which has less impact on the positioning process. By using ⁇ data for communication, the amount of data communicated between the target device and the relay device can be reduced, the processing efficiency is improved, and the power consumption of the communication process is reduced.
  • the target device may send a set of preset data for the relay device to analyze the signal strength of the communication with the target device.
  • the preset data can be a set of data suitable for analyzing the signal strength through theoretical or practical experiments.
  • the location of the target device is obtained according to the distance information sent by the plurality of the relay devices.
  • the relay device generates distance information based on communication with the target device, and transmits the distance information to the positioning device.
  • the positioning device receives the distance information sent by the relay device.
  • the target device communicates with a plurality of relay devices within the communication range, the plurality of relay devices respectively transmit the distance information to the positioning device.
  • the positioning device analyzes the location of the target device based on the received distance information.
  • the obtaining the location of the target device according to the distance information sent by the plurality of the relay devices may include:
  • the manner of acquiring the location information of the relay device may include acquiring location information of the stored relay device, or receiving location information sent by the relay device.
  • location information of each relay device is stored in the positioning device. After receiving the distance information sent by the relay device, the location information corresponding to the relay device is found. Combined with intermediate equipment The position information and the distance information of the relay device and the target device are analyzed to obtain the position of the target device.
  • the relay device sends the peer of the distance information to the positioning device, and also sends the location information of the relay device.
  • the positioning device analyzes the position of the target device based on the received distance information and the position information of the relay device.
  • the relay device after receiving the location information sent by the relay device, storing the location information of the relay device, and returning the indication information, so that the relay device only sends the distance information in the subsequent information transmission, and is no longer sent. location information.
  • the amount of data communicated between the relay device and the positioning device is reduced, the communication efficiency is improved, and the communication power consumption is reduced.
  • the positioning device uses the geometric relationship to determine the position of the target device according to the position of the relay device and the distance between the relay device and the target device. For example, if the target device communicates with only one relay device, the position of the target device determined according to the geometric relationship is centered on the relay device, and the distance between the relay device and the target device is within a radius of the arc; When communicating with two relay devices, the position of the target device determined according to the geometric relationship is the intersection of the arcs centered on the two relay devices; if the target device communicates with three or more relay devices, Find the position range of the target device based on the geometric relationship.
  • the positioning device since there is a certain error in the distance between the target device and the relay device obtained by the signal strength, the positioning device has a certain error according to the position of the target device obtained from the distance information, and thus is determined. After the target device is located, the circular area of the preset radius around the position is taken as the position of the target device, thereby reducing the influence of the error on the positioning result.
  • the transfer device may be disposed at the same level. It is also possible to determine the arrangement height of the relay device based on the possible height of the actual target device. For example, after positioning the child in kindergarten, the relay device can be placed at a position of about 50 cm from the ground to make the transfer device and the target device substantially flat in height, improving positioning accuracy.
  • the positioning device analyzes the location of the target device according to the distance information, generates location information, and transmits the location information to the user terminal.
  • the positioning device includes, but is not limited to, a processing module, a power module, a communication module, and a display module.
  • User terminal Can be for mobile phones, tablets, computers, and more.
  • the manner of communication between the positioning device and the user terminal includes, but is not limited to, GPRS communication, fiber optic communication, and Wi-Fi communication.
  • the user terminal After receiving the location information of the target device, the user terminal updates the location information of the target device.
  • the user terminal can display a plan view of the desired location area and display the location of the target device on the floor plan.
  • the location device obtains the location information of the target device, comparing the location information on the target device, if the current location information and the previous location information are the same, the location information is not sent to the user terminal for updating. If the current location information is different from the previous location information, the location information is sent to the user terminal for updating.
  • the current location information of the current target device is sent to the user terminal.
  • the update request information includes identification information of the target device.
  • the update request information may contain identification information of one or more target devices.
  • the target device can be monitored and an alarm can be issued.
  • the method further includes:
  • the location information of the target device after the location information of the target device is obtained according to the distance information, it may be detected whether the current location of the target device is within the preset region. If the current location of the target device is not within the preset area, an alert message is sent to the user terminal.
  • the area to be positioned may be divided into one or more preset areas.
  • the size and shape of the preset area are not limited and can be determined according to actual needs.
  • kindergartens can be divided into outdoor activity areas, classroom areas, canteen areas, and import and export.
  • the user can make settings in the user terminal, select the range of the preset area, or use the entire kindergarten area as the preset area.
  • the user terminal can be worn by a teacher or parent. If the child wears the target device away from the preset area, an alarm message is sent to the user terminal.
  • Alarm information includes, but is not limited to, pop-up reminders, audible alarms, and light flashing alarms.
  • the user terminal may pop up a pop-up window reminder on the screen, and the pop-up window content may include the user name corresponding to the target device, the orientation of the departure area, the departure time, and the like, and may also emit vibration. , sound, flashing lights and other alarm prompts.
  • the alarm information and the communication user terminal holder so that the user terminal holder and the target device holder can acquire the target device holder, it is possible to avoid the loss of the target device holder.
  • the method further includes:
  • the optimal route information between the location of the user terminal and the location of the target device is sent to the user terminal, so that the user terminal displays the optimal route information on a map.
  • the optimal route information between the location of the user terminal and the location of the target device is obtained according to the location information and the location information of the user terminal, and sent to User terminal.
  • the user terminal displays the optimal route on the map for the user to view.
  • the optimal route can be determined in conjunction with the road, building, etc. of the location area.
  • Optimal route information includes, but is not limited to, road conditions with good road conditions and shortest route information.
  • the user terminal after receiving the location information of the target device, the user terminal provides the user with an option of route display. After the user selects to display the route, the user terminal acquires the route information sent by the positioning device for display.
  • the route information can include multiple routes, which can be displayed on the user terminal screen simultaneously, and the optimal route is distinguished from other routes. For example, the optimal route can be displayed in red, and other routes can be displayed in blue. According to the user settings, the user terminal can also display only the optimal route.
  • the positioning device receives the identifier information of the target device sent by the user terminal, and sends the route information of the target device corresponding to the identifier information and the user terminal to the user terminal.
  • the user can operate on the user terminal and actively request to display the location information of a certain target device and the route of the user terminal to the target device.
  • the user terminal holder can quickly find the target device holder, reduce the accidental loss of the target device holder, and improve the search efficiency.
  • the method further includes:
  • a plurality of image acquisition devices may be arranged in the area to be positioned, respectively for collecting Images in different orientations.
  • the image acquisition device may be an infrared camera, a road-specific surveillance camera, a spherical camera, a dome camera, or the like.
  • the positioning device acquires an image of a period of time collected by the image capturing device within a certain range around the position information according to the position information of the target device obtained by the analysis.
  • the user terminal after receiving the image request information sent by the user terminal, acquiring image information collected by the image acquiring device corresponding to the image request information.
  • the image request information may include identification information of the target device.
  • the user terminal acquires identification information of one or more target devices selected by the user, generates image request information, and sends the image request information to the positioning device. Thereby, the corresponding image information can be sent according to the user's selection, which is convenient for the user to view.
  • the image information is transmitted to the user terminal.
  • the image information collected by the image acquisition device is acquired, and the image information is sent to the user terminal.
  • the user terminal receives the image information and displays it on the screen.
  • the alarm information is sent to the user terminal.
  • Obtaining the position of the target device away from the preset area and the last time in the preset area, searching for the image capturing device around the last position of the preset area, and acquiring the image capturing device in the target device The image information collected in a period of time before and after is sent to the user terminal.
  • the image acquisition of the preset area by the image acquisition device realizes the activity monitoring of the target device in the preset area.
  • the event information can be known based on the image information collected or stored internally, which helps to find the lost target.
  • FIG. 6 is an interaction flowchart of an Internet of Things (IoT) positioning method according to an embodiment of the present invention.
  • the execution body participating in the interaction process includes a target device, a relay device, a positioning device, and a user terminal, and the implementation principle of the interaction process is The implementation principles described in FIG. 2 to FIG. 5 are consistent, and therefore only the interaction process is briefly described, and the details are not described herein:
  • the target device communicates with the relay device.
  • Wireless communication is performed between the target device and the relay device to enable the relay device to derive the signal strength of the communication.
  • the relay device transmits the distance information to the positioning device.
  • the relay device obtains distance information from the target device according to the signal strength of the communication device and the target device
  • the positioning device obtains the location of the target device according to the distance information.
  • the positioning device derives the location of the target device according to the distance information sent by the plurality of relay devices.
  • the positioning device sends the location information to the user terminal.
  • the positioning device transmits the location information of the target device to the user terminal to cause the user terminal to display the location of the target device.
  • the positioning device sends an alarm message to the user terminal.
  • the positioning device detects that the location information of the target device exceeds the preset area, and sends an alarm message to the user terminal.
  • the positioning device sends the optimal route information to the user terminal.
  • the positioning device transmits the optimal route information between the location of the user terminal and the location of the target device to the user terminal, so that the user terminal displays the optimal route information on the map.
  • the positioning device acquires image information.
  • the positioning device acquires image information of a location of the target device collected by the image acquisition device.
  • the positioning device transmits the image information to the user terminal.
  • the positioning device transmits the image information collected by the image collection device to the user terminal.
  • the distance information of the target device is transmitted through the distance information of the target device, and the position information of the target device is obtained, thereby realizing the positioning of the target device.
  • the embodiment of the present invention can realize the positioning function only by the communication module without using the GPS positioning module, thereby reducing the cost and power consumption of the positioning device, and facilitating the scale implementation of the positioning device.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be taken to the embodiment of the present invention.
  • the implementation process constitutes any limitation.
  • FIG. 7 is a structural block diagram of an Internet of Things positioning apparatus according to an embodiment of the present invention. For the convenience of explanation, only the parts related to the present embodiment are shown.
  • the apparatus includes a receiving unit 71, a processing unit 72, and a transmitting unit 73.
  • receiving unit 71 configured to receive distance information of the relay device and the target device sent by the relay device, where the distance information is obtained by the relay device according to a signal strength of the communication device and the target device .
  • the processing unit 72 is configured to determine, according to the distance information sent by the plurality of the relay devices, a location where the target device is located.
  • the sending unit 73 is configured to send location information of the target device to the user terminal.
  • the device further comprises an alarm unit.
  • the alarm unit is configured to: after detecting that the location information of the target device exceeds the preset area, send an alarm message to the user terminal.
  • the sending unit 73 is further configured to send, to the user terminal, optimal route information between the location of the user terminal and the location of the target device, so that the user terminal displays the Optimal route information.
  • the device further comprises an acquisition unit.
  • an acquiring unit configured to acquire image information of a location where the target device is collected by the image capturing device
  • the sending unit 73 is further configured to send the image information to the user terminal.
  • the processing unit 72 is configured to acquire location information of the relay device, and analyze, according to the location information of the relay device and the distance information sent by the plurality of the relay devices, the location of the target device. position.
  • the location information of the target device is obtained by combining the distance information of the target device with the distance information of the target device, and the positioning of the target device is achieved.
  • the embodiment of the present invention can realize the positioning function only by the communication module without using the GPS positioning module, thereby reducing the cost and power consumption of the positioning device, and facilitating the scale implementation of the positioning device.
  • the Internet of Things positioning device can include: one or more input devices 802, one or more output devices 803, one or more processors 801 and memory 804.
  • the processor 801, the input device 802, the output device 803, and the memory 804 are connected by a bus 805.
  • the processor 801 is configured to receive, by using the input device 802, the relay device and the target device that are sent by the relay device.
  • the distance information is obtained by the relay device according to the signal strength of the communication device and the target device.
  • the processor 801 is further configured to determine, according to the distance information sent by the plurality of the relay devices, the location where the target device is located.
  • the processor 801 is further configured to send the location information of the target device to the user terminal by using the output device 803.
  • the processor 801 is further configured to: monitor that the location information of the target device exceeds a preset area.
  • the alarm information is sent to the user terminal through the output device 803.
  • the processor 801 is further configured to send, by using the output device 803, optimal route information between the location of the user terminal and the location of the target device to the user terminal, so that the user terminal is The optimal route information is displayed on the map.
  • the processor 801 is further configured to acquire, by using the input device 802, image information of a location of the target device collected by the image collection device, and send the image information to the user by using the output device 803. terminal.
  • the memory 804 is configured to store a software program, a module, and the network interaction data, and the processor 810 executes various function applications and data by running a software program and a unit stored in the memory 804. Processing, to achieve the information exchange function of the terminal.
  • the so-called processor 801 may be a central processing unit (CPU), and the processor 801 may also be other general-purpose processors, digital signal processors (Digital Signal) Processor, DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the input device 802 may include a touch panel, a fingerprint sensor (for collecting fingerprint information of the user and direction information of the fingerprint), a microphone, and the like, and the output device 803 may include a display (LCD or the like), a speaker, and the like.
  • a fingerprint sensor for collecting fingerprint information of the user and direction information of the fingerprint
  • a microphone for collecting fingerprint information of the user and direction information of the fingerprint
  • the output device 803 may include a display (LCD or the like), a speaker, and the like.
  • Memory 804 can include read only memory and random access memory and provides instructions and data to processor 801. A portion of memory 804 may also include non-volatile random access memory. For example, the memory 804 can also store information of the device type.
  • FIG. 9 shows an object provided by an embodiment of the present invention.
  • a block diagram of a networked positioning system For the convenience of explanation, only the parts related to the present embodiment are shown.
  • the system includes a target device 91, a relay device 92, a positioning device 93, and a user terminal 94.
  • the target device 91 is configured to communicate with the relay device 92.
  • a relay device 92 is configured to obtain distance information from the target device 91 according to the signal strength of the relay device 92 and the target device 91, and send the distance information to the positioning device 93. .
  • the positioning device 93 is configured to receive the distance information sent by the plurality of the relay devices 92, and obtain the position of the target device 91 according to the distance information sent by the plurality of the relay devices 92.
  • the user terminal 94 is configured to receive location information of the target device 91 sent by the positioning device 93.
  • the positioning device 93 is further configured to acquire the location information of the relay device 92; and analyze the target information according to the location information of the relay device 92 and the distance information sent by the plurality of the relay devices 92. The location of the device 91.
  • the positioning device 93 is further configured to monitor that the location information of the target device 91 exceeds a preset area.
  • the positioning device 93 is further configured to send the optimal route information between the location of the user terminal 94 and the location of the target device 91 to the user terminal 94.
  • the user terminal 94 is further configured to display the optimal route information on a map.
  • the positioning device 93 is further configured to acquire image information of the location of the target device 91 collected by the image collection device, and send the image information to the user terminal 94.
  • the location information of the target device is obtained by combining the distance information of the target device with the distance information of the target device, and the positioning of the target device is achieved.
  • the embodiment of the present invention can realize the positioning function only by the communication module without using the GPS positioning module, thereby reducing the cost and power consumption of the positioning device, and facilitating the scale implementation of the positioning device.
  • each functional unit and module described above is exemplified. In practical applications, the above functions may be assigned differently according to needs.
  • the functional unit and the module are completed, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.
  • Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit, and the integrated unit may be implemented by hardware.
  • Formal implementation can also be implemented in the form of software functional units.
  • the disclosed apparatus and method may be implemented in other manners.
  • the system embodiment described above is merely illustrative.
  • the division of the module or unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.
  • the unit described as a separate component may or may not be physically distributed, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place, or may be distributed to multiple On the network unit. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the medium includes a number of instructions for causing a computer device (which may be a personal computer, a server, Or a network device or the like) or a processor performs all or part of the steps of the method according to various embodiments of the embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (R OM), and a random access memory (RAM).
  • a variety of media that can store program code such as a disk or a disc.

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Abstract

本方案适用于物联网技术领域，提供了一种物联网定位方法、装置及系统。该方法包括：接收中转装置发送的所述中转装置与目标装置的距离信息，所述距离信息由所述中转装置根据所述中转装置与所述目标装置通信的信号强度得出；根据多个所述中转装置发送的距离信息得出目标装置所在的位置；向用户终端发送所述目标装置的位置信息。本方案能够不使用GPS定位模块，仅通过通信模块实现定位功能，降低了定位装置的成本和功耗，有助于定位装置的规模化实施。

Description

发明名称：物联网定位方法、 装置及系统
技术领域
[0001] 本发明属于物联网技术领域， 尤其涉及一种物联网定位方法、 装置及系统。
背景技术
[0002] 日常生活中， 小孩在小区或公园玩耍， 父母可能不在身边， 此吋父母只能通过 自己实地寻找或询问他人来寻找孩子。 幼儿园老师要关注小孩的安全， 当有小 孩不在视线范围吋， 也需要对小孩进行寻找。 当有不法分子拐走小孩吋， 父母 无法及吋知道孩子的位置， 会错过最佳的找寻吋间。
[0003] 目前通过让小孩佩戴安装有全球定位系统 （Global Positioning System, GPS) 定位模块的装置， 实现对小孩的定位。 但 GPS定位模块的功耗往往较大， 需要经 常更换电源， 且 GPS定位模块的成本较高， 一些家庭或组织难以承担其费用。 技术问题
[0004] 本发明实施例的目的在于提供了一种物联网定位方法、 装置及系统， 旨在解决 目前定位装置中定位模块的功耗大， 成本高的问题。
问题的解决方案
技术解决方案
[0005] 本发明实施例的目的在于提供了一种物联网定位方法、 装置及系统， 旨在解决 目前定位装置中定位模块的功耗大， 成本高的问题。
[0006] 本发明实施例的第一方面， 提供了一种物联网定位方法， 包括：
[0007] 接收中转装置发送的所述中转装置与目标装置的距离信息， 所述距离信息由所 述中转装置根据所述中转装置与所述目标装置通信的信号强度得出；
[0008] 根据多个所述中转装置发送的距离信息得出所述目标装置所在的位置；
[0009] 向用户终端发送所述目标装置的位置信息。
[0010] 在第一方面的第一种可能的实现方式中， 所述根据多个所述中转装置发送的距 离信息得出所述目标装置所在的位置， 包括： 获取所述中转装置的位置信息； 根据所述中转装置的位置信息和多个所述中转装置发送的距离信息得出所述目 标装置所在的位置。
[0011] 在第一方面的第二种可能的实现方式中， 所述根据多个所述中转装置发送的距 离信息得出所述目标装置所在的位置， 之后还包括： 监测到所述目标装置的位 置信息超出预设区域吋， 向所述用户终端发送报警信息。
[0012] 在第一方面的第三种可能的实现方式中， 所述根据多个所述中转装置发送的距 离信息得出所述目标装置所在的位置， 之后还包括： 向所述用户终端发送所述 用户终端位置与所述目标装置位置之间的最优路线信息， 以使所述用户终端在 地图上显示所述最优路线信息。
[0013] 结合第一方面或者第一方面的任一种可能的实现方式， 在第四种可能的实现方 式中， 还包括： 获取图像采集装置采集到的所述目标装置所在位置的图像信息
； 将所述图像信息发送至所述用户终端。
[0014] 本发明实施例的第二方面， 提供了一种物联网定位装置， 包括：
[0015] 接收单元， 用于接收中转装置发送的所述中转装置与目标装置的距离信息， 所 述距离信息由所述中转装置根据所述中转装置与所述目标装置通信的信号强度 得出；
[0016] 处理单元， 用于根据多个所述中转装置发送的距离信息得出所述目标装置所在 的位置；
[0017] 发送单元， 用于向用户终端发送所述目标装置的位置信息。
[0018] 在第二方面的第一种可能的实现方式中， 还包括： 报警单元， 用于监测到所述 目标装置的位置信息超出预设区域吋， 向所述用户终端发送报警信息。
[0019] 在第二方面的第二种可能的实现方式中， 所述发送单元， 还用于向所述用户终 端发送所述用户终端位置与所述目标装置位置之间的最优路线信息， 以使所述 用户终端在地图上显示所述最优路线信息。
[0020] 结合第二方面或者第一方面的任一种可能的实现方式， 在第三种可能的实现方 式中， 还包括： 获取单元， 用于获取图像采集装置采集到的所述目标装置所在 位置的图像信息； 所述发送单元， 还用于将所述图像信息发送至所述用户终端
[0021] 本发明实施例的第三方面， 提供了一种物联网定位系统， 包括定位装置、 目标 装置、 中转装置和用户终端；
[0022] 所述目标装置， 用于与所述中转装置进行通信；
[0023] 所述中转装置， 用于根据所述中转装置与所述目标装置通信的信号强度得出与 所述目标装置的距离信息， 并将所述距离信息发送至所述定位装置；
[0024] 所述定位装置， 用于接收多个所述中转装置发送的距离信息， 并根据多个所述 中转装置发送的距离信息得出所述目标装置所在的位置；
[0025] 所述用户终端， 用于接收所述定位装置发送的所述目标装置的位置信息。
发明的有益效果
有益效果
[0026] 本发明实施例中， 通过对多个中转装置发送的与目标装置的距离信息， 结合中 转装置所在的位置， 得出目标装置的位置信息， 实现对目标装置的定位。 本发 明实施例能够不使用 GPS定位模块， 仅通过通信模块实现定位功能， 降低了定位 装置的成本和功耗， 有助于定位装置的规模化实施。
对附图的简要说明
附图说明
[0027] 图 1是本发明实施例提供的物联网定位系统中目标装置和中转装置的场景示意 图；
[0028] 图 2是本发明实施例提供的物联网定位方法的实现流程图；
[0029] 图 3是本发明实施例提供的物联网定位方法中报警的实现流程图；
[0030] 图 4是本发明实施例提供的物联网定位方法中推荐最优路线的实现流程图；
[0031] 图 5是本发明实施例提供的物联网定位方法中图像采集的实现流程图；
[0032] 图 6是本发明实施例提供的物联网定位系统的交互流程图；
[0033] 图 7是本发明实施例提供的物联网定位装置的结构框图；
[0034] 图 8是本发明实施例提供的物联网定位装置的硬件框图；
[0035] 图 9是本发明实施例提供的物联网定位系统的结构框图。
本发明的实施方式 [0036] 为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实施例 ， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施例仅仅用 以解释本发明， 并不用于限定本发明。 为了说明本发明所述的技术方案， 下面 通过具体实施例来进行说明。
[0037] 图 1为本发明实施例提供的物联网定位系统中目标装置和中转装置的场景示意 图。 其中， 圆形代表目标装置， 矩形代表中转装置。 实线代表目标装置移动前 所在位置， 虚线代表目标装置移动后所在位置。 箭头表示目标装置和中转装置 之间进行通信。
[0038] 目标装置可以和无线信号覆盖范围内的中转装置进行通信。 目标装置移动前， 和无线信号覆盖范围内的三个中转装置分别进行通信； 目标装置移动后， 和无 线信号覆盖范围内的四个中转装置分别进行通信。 在需要进行定位的区域， 多 处布置中转装置， 使中转装置的无线信号覆盖整个区域。 定位区域可以包括室 内和户外。 该定位方法的精确度上高于 GPS定位模块定位的精确度， 并且根据场 景不同、 区域不同和需求不同， 可以调节中转装置的位置和数目， 实现不同的 定位效果。 目标装置包括但不限于电源模块、 通信模块和处理模块。 电源模块 为目标装置提供电源。 电源模块具体可以通过电池进行供电， 或者通过太阳能 发电板将太阳能转换为电能进行供电。 优选地， 可以采用纽扣电池结合太阳能 发电板的方式进行供电。
[0039] 可选地， 目标装置的外形可以采用便携的卡式或环式。 目标装置可以由被保护 目标佩戴。 被保护目标包括但不限于儿童、 老人、 病人和宠物。 被保护目标还 可以为汽车等重要物品， 可以将目标装置固定放置于被保护目标。
[0040] 中转装置包括但不限于电源模块、 通信模块和处理模块。 其中， 通信模块能够 实现的无线通信方式包括目标装置的无线通信方式， 以便中转装置和目标装置 之间进行通信。 例如， 目标装置采用 ZigBee通信， 则中转装置也能够实现 ZigBee 通信， 并且能够与无线信号覆盖范围内的目标装置建立通信连接。 此外， 中转 装置还可以根据实际情况选择性的增加有线通信方式。 例如增加光纤通信、 电 力线载波通信等。
[0041] 如果是对户外的目标装置进行定位， 可以将中转装置布置于道路两旁的路灯支 柱上、 小区内或街道两旁的垃圾箱旁边以及一些其他的固定的公共设施上。
[0042] 图 2为本发明实施例提供的物联网定位方法的实现流程图， 详述如下：
[0043] 在 S201中， 接收中转装置发送的所述中转装置与目标装置的距离信息， 所述距 离信息由所述中转装置根据所述中转装置与所述目标装置通信的信号强度得出
[0044] 在本发明实施例中， 目标装置与无线信号覆盖范围内的中转装置分别进行通信 。 中转装置对与目标装置进行通信的信号强度进行分析， 得出与目标装置之间 的距离， 生成距离信息， 发送给定位装置。 定位装置接收中转装置发送的距离 f π息。
[0045] 目标装置与无线信号覆盖范围内的一个或多个中转装置进行通信。 目标装置与 中转装置之间的通信， 可以是由目标装置发送通信连接信号， 中转装置应答后 进行通信， 也可以是由中转装置发送通信连接信号， 目标装置应答后进行通信
[0046] 目标装置可以以广播的形式向外界发送通信连接信号。 无线信号覆盖范围内的 一个或多个中转装置接收到通信连接信号后， 应答目标装置的连接请求。 或者 中转装置可以以广播的形式向外界发送通信连接信号。 无线信号覆盖范围内的 一个或多个目标装置接收到通信连接信号后， 应答中转装置的连接请求。
[0047] 可选地， 可以为目标装置和中转装置设置连接密钥， 在密钥验证成功后才能进 行通信， 若密钥验证失败则双方不能进行连接。 由此， 可以避免一个区域内多 个定位系统存在吋相互之间通信的影响， 并且可以根据实际需求对当前区域内 的一部分目标装置进行屏蔽。
[0048] 中转装置可以通过通信地址来识别目标装置。 每个目标装置具有唯一的通信地 址， 当中转装置与目标装置通信吋可以通过通信地址来区分不同的目标装置。 每个中转装置都具有唯一通信地址， 以便定位装置和目标装置区分不同的中转 装置。
[0049] 可选地， 每个目标装置设置有唯一的标识信息。 目标装置在与中转装置通信吋 ， 发送标识信息给中转装置， 以使中转装置用该标识信息记录该目标装置。 每 个中转装置设有唯一的标识信息， 以使目标装置和定位装置区分各个中装装置 。 中转装置与目标装置通信吋， 将标识信息发送给目标装置。 中转装置与定位 装置通信吋， 将标识信息发送给定位装置。
[0050] 无线信号传输过程中的信号强度和发送端与接收端之间的距离有关。 可以根据 无线信号的信号强度和传输距离构建为传输模型。 不同的无线信号可以有不同 的传输模型， 或者对应同一模型的不同参数。 例如 Wi-Fi无线信号的传输模型和 ZigBee无线信号的传输模型可以分别根据实际情况选择适当的传输模型。
[0051] 中转装置根据与目标装置通信吋的信号强度生成接收的信号强度指示 （Receive d Signal Strength Indication, RSSl) ， 代入无线信号的传输模型， 计算求出中转 装置与目标装置之间的距离。 生成距离信息， 发送给定位装置。
[0052] 可选地， 中转装置可以存储根据传输模型计算生成的信号强度和距离的列表。
当中转装置与目标装置通信吋中转装置获取信号强度， 再査找列表中该信号强 度对应的距离， 该距离即为中转装置和目标装置的距离， 生成距离信息并发送 至定位装置。 由此， 能够缩短中转装置生成距离信息的吋间， 减小对目标装置 定位的吋间误差， 提高定位的吋间准确度。
[0053] 可选地， 中转装置生成距离信息后， 与上一次生成的距离信息进行对比。 如果 该距离信息与上一次生成的距离信息一致， 则表明目标装置与中转装置之间的 距离没有发生变化， 此吋不向定位装置发送该距离信息。 如果该距离信息与上 一次生成的距离信息不一致， 则表明目标装置与中转装置之间的距离发生变化 ， 此吋向定位装置发送该距离信息。 由此， 能够在不影响定位的情况下减少中 转装置发送的信息量， 减少中转装置中通信模块的处理任务， 降低中转装置的 功耗。
[0054] 作为本发明的一个实施例， 所述目标装置向所述中转装置发送啁啾数据进行通 信。
[0055] 在本实施例中， 当所需定位的区域内目标装置较多吋， 中转装置发送和接收的 数据量会非常庞大， 对中转装置的通信处理造成负担。 因此， 可以采用一种简 化的数据格式进行传输， 即啁啾数据。 相对于传统的互联网协议数据包， 啁啾 数据不包含重传或应答协议。 传统的互联网协议数据包在双方通信过程中， 当 一方接收到数据后， 需要回复应答信息， 以告知另一方所传输数据成功被接收 ， 否则另一方在没有收到应答信息的情况下， 会将之前的数据重新发送。 所以 传统的互联网协议数据包包含重传和应答的数据格式， 虽然可以确保数据传输 成功， 但所传输的数据量较大， 数据传输效率低。
[0056] 采用啁啾数据传输吋， 目标装置发送一组数据后， 无论该数据是否被中转装置 所成功接收， 目标装置都不会对该组数据重新发送。 因为目标装置与中转装置 进行通信的目的在于使中转装置获取目标装置的标识信息或通信地址， 同吋根 据信号强度计算距离， 且每隔一端吋间目标装置与中转装置进行一次通信， 所 以， 在多次通信中， 某次目标装置所发送的数据未能被成功接收对定位过程的 影响较小。 采用啁啾数据进行通信， 能够减小目标装置和中转装置通信的数据 量， 提高处理效率， 降低通信过程的功耗。
[0057] 可选地， 目标装置可以发送一组预设数据， 该预设数据用于中转装置分析得出 与目标装置通信的信号强度。 预设数据可以是通过理论或实际试验得出的适于 分析信号强度的一组数据。
[0058] 在 S202中， 根据多个所述中转装置发送的距离信息得出所述目标装置所在的位 置。
[0059] 在本实施例中， 中转装置根据与目标装置通信生成距离信息， 并将距离信息发 送至定位装置。 定位装置接收中转装置发送的距离信息。 目标装置与通信范围 内的多个中转装置进行通信， 则多个中转装置分别将距离信息发送至定位装置 。 定位装置根据接收到的距离信息分析得出目标装置所在的位置。
[0060] 作为本发明的一个实施例， 所述根据多个所述中转装置发送的距离信息得出所 述目标装置所在的位置， 可以包括：
[0061 ] 获取所述中转装置的位置信息；
[0062] 根据所述中转装置的位置信息和多个所述中转装置发送的距离信息得出所述目 标装置所在的位置。
[0063] 在本实施例中， 获取中转装置的位置信息的方式可以包括获取存储的中转装置 的位置信息， 或者接收中转装置发送的位置信息。
[0064] 作为一个具体的实现方式， 定位装置中存储有各个中转装置的位置信息。 在接 收到中转装置发送的距离信息后， 査找中转装置对应的位置信息。 结合中转装 置的位置信息和中转装置与目标装置的距离信息分析得出目标装置的位置。
[0065] 作为另一具体的实现方式， 中转装置向定位装置发送距离信息的同吋， 还发送 中转装置所在的位置信息。 定位装置根据接收到的距离信息和中转装置的位置 信息分析得出目标装置所在的位置。
[0066] 可选地， 在接收到一次中转装置所发送的位置信息后， 存储中转装置的位置信 息， 并返回指示信息， 以使中转装置在之后的信息发送中只发送距离信息， 不 再发送位置信息。 由此， 减少中转装置与定位装置之间通信的数据量， 提高通 信效率， 降低通信功耗。
[0067] 定位装置根据中转装置所在的位置和中转装置与目标装置的距离， 利用几何关 系求出目标装置所在的位置。 例如， 若目标装置只与一个中转装置通信， 则根 据几何关系求出的目标装置所在位置为以中转装置为圆心， 以中转装置与目标 装置之间距离为半径的圆弧范围内； 若目标装置与两个中转装置进行通信， 则 根据几何关系求出的目标装置所在的位置为以两个中转装置为圆心的圆弧的相 交位置； 若目标装置与三个及以上的中转装置进行通信， 则根据几何关系求出 目标装置的位置范围。
[0068] 可选地， 由于通过信号强度求出的目标装置和中转装置之间的距离存在一定误 差， 所以定位装置根据距离信息所求出的目标装置的位置存在一定误差， 因此 在求出的目标装置所在位置后， 取所在位置周围预设半径的圆形区域作为目标 装置的位置， 由此减小误差对定位结果的影响。
[0069] 可选地， 为避免中转装置所在位置高度对定位结果的影响， 可以将中转装置布 置于同一水平高度。 还可以根据实际目标装置可能的高度来确定中转装置的布 置高度。 例如， 在幼儿园对儿童进行定位吋， 可以将中转装置布置于离地面 50 厘米左右的位置， 以使中转装置和目标装置的在高度上基本持平， 提高定位精 度。
[0070] 在 S203中， 向用户终端发送所述目标装置的位置信息。
[0071] 在本实施例中， 定位装置根据距离信息分析得出目标装置所在的位置， 生成位 置信息， 将位置信息发送至用户终端。
[0072] 定位装置包括但不限于处理模块、 电源模块、 通信模块和显示模块。 用户终端 可以为手机、 平板、 电脑等等。 定位装置和用户终端之间的通信方式包括但不 限于 GPRS通信、 光纤通信和 Wi-Fi通信。
[0073] 用户终端在接收到目标装置的位置信息后， 将目标装置的位置信息进行更新。
用户终端可以显示所需定位区域的平面图， 并在平面图上显示出目标装置的位 置。
[0074] 可选地， 定位装置得出目标装置的位置信息后， 对比目标装置上一位置信息， 如果当前位置信息和上一位置信息相同， 则不向用户终端发送位置信息进行更 新。 如果当前位置信息和上一位置信息不同， 则向用户终端发送位置信息进行 更新。
[0075] 可选地， 在接收到用户终端发送的位置信息的更新请求信息吋， 向用户终端发 送当前的目标装置的当前位置信息。 更新请求信息包括目标装置的标识信息。 更新请求信息可以包含一个或多个目标装置的标识信息。
[0076] 作为本发明的一个实施例， 可以对目标装置进行监测， 并发出警报。 如图 3所 示， 在 S202之后， 所述方法还包括：
[0077] 在 S301中， 监测到所述目标装置的位置信息超出预设区域吋， 向所述用户终端 发送报警信息。
[0078] 在本实施例中， 根据距离信息得出目标装置的位置信息后， 可以检测目标装置 的当前位置是否在预设区域内。 如果目标装置的当前位置不在预设区域内， 则 向所述用户终端发送报警信息。
[0079] 所需定位的区域可以划分为一个或多个预设区域。 预设区域的大小和形状并不 作限制， 可以根据实际需求而定。 例如， 可以将幼儿园划分为户外活动区， 教 室区、 食堂区、 进出口等。 用户可以在用户终端进行设置， 选择预设区域的范 围， 也可以将整个幼儿园区作为预设区域。 用户终端可以由老师或家长进行佩 戴。 若儿童佩戴目标装置离幵预设区域， 则向用户终端发送报警信息。
[0080] 报警信息包括但不限于弹窗提醒、 声音报警和灯光闪烁报警。 例如， 用户终端 在接收到报警信息后， 可以在屏幕上弹出弹窗提醒， 弹窗内容可以包含目标装 置所对应的用户名称、 离幵区域的方位、 离幵吋间等等， 还可以发出振动、 声 音、 闪烁灯等报警提示。 [0081] 由此， 通过发送报警信息， 及吋通信用户终端持有者， 以便用户终端持有者及 吋获取目标装置持有者， 可以避免目标装置持有者走失的情况。
[0082] 作为本发明的一个实施例， 为方便査找目标装置的位置， 如图 4所示， 在 S202 之后， 所述方法还包括：
[0083] 在 S401中， 向所述用户终端发送所述用户终端位置与所述目标装置位置之间的 最优路线信息， 以使所述用户终端在地图上显示所述最优路线信息。
[0084] 在本实施例中， 根据距离信息得出目标装置的位置信息后， 根据位置信息和用 户终端的位置信息得出用户终端位置与目标装置位置之间的最优路线信息， 并 发送至用户终端。 用户终端在接收到最优路线信息后将最优路线在地图上进行 显示， 以便用户査看。
[0085] 最优路线可以结合定位区域的道路、 建筑物等情况进行确定。 最优路线信息包 括但不限于路况良好的路线信息和用吋最短的路线信息。
[0086] 可选地， 用户终端接收到目标装置的位置信息后， 为用户提供路线显示的选项 。 用户选择显示路线后， 用户终端获取定位装置发送的路线信息进行显示。 路 线信息可以包含多条路线， 可以同吋显示在用户终端屏幕上， 将最优路线与其 他路线加以区分， 例如可以将最优路线使用红色显示， 其他路线用蓝色显示。 根据用户设置， 用户终端也可以只显示最优路线。
[0087] 可选地， 定位装置接收用户终端发送的目标装置的标识信息， 将标识信息所对 应的目标装置与用户终端的路线信息发送至用户终端。 用户可以在用户终端上 进行操作， 主动请求显示某个目标装置的位置信息和用户终端到目标装置的路 线。
[0088] 由此， 通过向用户终端发送最优路线信息， 可以使用户终端持有人及吋快捷地 寻找到目标装置持有人， 减少目标装置持有人意外走失的情况， 提高寻找效率
[0089] 作为本发明的一个实施例， 为及吋获得目标装置持有人的相关情况， 如图 5所 示， 所述方法还包括：
[0090] 在 S501中， 获取图像采集装置采集到的所述目标装置所在位置的图像信息。
[0091] 在本实施例中， 所需定位的区域内可以布置多个图像采集装置， 分别用于采集 不同方位的图像。 图像采集装置可以为红外摄像机、 道路专用监控摄像机、 球 形摄像机、 半球形摄像机等等。 定位装置根据分析得到的目标装置的位置信息 ， 获取位置信息周围一定范围内的图像采集装置所采集的一段吋间的图像。
[0092] 可选地， 在接收到用户终端发送的图像请求信息后， 获取图像请求信息对应的 图像采集装置采集的图像信息。 图像请求信息可以包含目标装置的标识信息。 用户终端获取用户选择的一个或多个目标装置的标识信息， 生成图像请求信息 ， 并发送给定位装置。 由此， 可以根据用户的选择发送相应的图像信息， 便于 用户査看。
[0093] 在 S502中， 将所述图像信息发送至所述用户终端。
[0094] 在本实施例中， 获取图像采集装置采集到的图像信息， 将图像信息发送至用户 终端。 用户终端接收图像信息， 并在屏幕上显示。
[0095] 可选地， 获取图像采集装置采集到的图像进行存储， 在接收到用户终端发送的 图像请求信息后， 在存储的数据库中査找图像请求信息对应的图像信息， 将图 像请求信息对应的图像信息发送至用户终端。
[0096] 可选地， 当分析得出的目标装置的位置信息超出预设区域后， 向用户终端发送 报警信息。 获取目标装置离幵预设区域的离幵吋间和最后一次位于预设区域的 位置， 査找最后一次位于预设区域的位置周围的图像采集装置， 获取该图像采 集装置在目标装置离幵吋间前后一段吋间内所采集到的图像信息， 发送至用户 终端。
[0097] 由此， 通过图像采集装置对预设区域的图像采集， 实现对目标装置在预设区域 内的活动监测。 当发生目标装置持有者意外走失吋， 可以根据实吋采集的或内 部存储的图像信息了解事件情况， 有助于寻找走失目标。
[0098] 图 6示出了本发明实施例提供的物联网定位方法的交互流程图， 参与该交互流 程的执行主体包括目标装置、 中转装置、 定位装置和用户终端， 该交互流程的 实现原理与图 2至图 5所述的实现原理相一致， 因此仅简要地描述该交互流程， 不赘述：
[0099] 1、 目标装置与中转装置进行通信。
[0100] 目标装置与中转装置之间进行无线通信， 以使中转装置得出通信的信号强度。 [0101] 2、 中转装置向定位装置发送距离信息。
[0102] 中转装置根据中转装置与目标装置通信的信号强度得出与目标装置的距离信息
， 并将距离信息发送至定位装置。
[0103] 3、 定位装置根据距离信息得出目标装置所在位置。
[0104] 定位装置根据多个中转装置发送的距离信息得出目标装置所在的位置。
[0105] 4、 定位装置向用户终端发送位置信息。
[0106] 定位装置向用户终端发送目标装置的位置信息， 以使用户终端显示目标装置的 位置。
[0107] 5、 定位装置向用户终端发送报警信息。
[0108] 定位装置监测到目标装置的位置信息超出预设区域吋， 向用户终端发送报警信 息。
[0109] 6、 定位装置向用户终端发送最优路线信息。
[0110] 定位装置向用户终端发送用户终端位置与目标装置位置之间的最优路线信息， 以使用户终端在地图上显示最优路线信息。
[0111] 7、 定位装置获取图像信息。
[0112] 定位装置获取图像采集装置采集到的目标装置所在位置的图像信息。
[0113] 8、 定位装置将图像信息发送至用户终端。
[0114] 定位装置将图像采集装置采集到的图像信息发送至用户终端。
[0115] 本发明实施例中， 通过对多个中转装置发送的与目标装置的距离信息， 结合中 转装置所在的位置， 得出目标装置的位置信息， 实现对目标装置的定位。 本发 明实施例能够不使用 GPS定位模块， 仅通过通信模块实现定位功能， 降低了定位 装置的成本和功耗， 有助于定位装置的规模化实施。
[0116] 应理解， 在本发明实施例中， 上述各过程的序号的大小并不意味着执行顺序的 先后， 各过程的执行顺序应以其功能和内在逻辑确定， 而不应对本发明实施例 的实施过程构成任何限定。
[0117] 对应于上文实施例所述的物联网定位方法， 图 7示出了本发明实施例提供的物 联网定位装置的结构框图。 为了便于说明， 仅示出了与本实施例相关的部分。
[0118] 参照图 7， 该装置包括接收单元 71、 处理单元 72和发送单元 73。 [0119] 接收单元 71， 用于接收中转装置发送的所述中转装置与目标装置的距离信息， 所述距离信息由所述中转装置根据所述中转装置与所述目标装置通信的信号强 度得出。
[0120] 处理单元 72， 用于根据多个所述中转装置发送的距离信息得出所述目标装置所 在的位置。
[0121] 发送单元 73， 用于向用户终端发送所述目标装置的位置信息。
[0122] 优选地， 该装置还包括报警单元。
[0123] 报警单元， 用于监测到所述目标装置的位置信息超出预设区域吋， 向所述用户 终端发送报警信息。
[0124] 优选地， 发送单元 73， 还用于向所述用户终端发送所述用户终端位置与所述目 标装置位置之间的最优路线信息， 以使所述用户终端在地图上显示所述最优路 线信息。
[0125] 优选地， 该装置还包括获取单元。
[0126] 获取单元， 用于获取图像采集装置采集到的所述目标装置所在位置的图像信息
[0127] 发送单元 73， 还用于将所述图像信息发送至所述用户终端。
[0128] 优选地， 处理单元 72， 用于获取所述中转装置的位置信息； 并根据所述中转装 置的位置信息和多个所述中转装置发送的距离信息分析得出所述目标装置所在 的位置。
[0129] 本发明实施例中， 通过对多个中转装置发送的与目标装置的距离信息， 结合中 转装置所在的位置， 得出目标装置的位置信息， 实现对目标装置的定位。 本发 明实施例能够不使用 GPS定位模块， 仅通过通信模块实现定位功能， 降低了定位 装置的成本和功耗， 有助于定位装置的规模化实施。
[0130] 图 8示出了本发明实施例提供的物联网定位装置的硬件框图。 参见图 8， 该物联 网定位装置可以包括： 一个或多个输入设备 802， 一个或多个输出设备 803， 一 个或多个处理器 801和存储器 804。 处理器 801、 输入设备 802、 输出设备 803和存 储器 804通过总线 805连接。
[0131] 处理器 801， 用于通过输入设备 802接收中转装置发送的所述中转装置与目标装 置的距离信息， 所述距离信息由所述中转装置根据所述中转装置与所述目标装 置通信的信号强度得出。 处理器 801， 还用于根据多个所述中转装置发送的距离 信息得出所述目标装置所在的位置。 处理器 801， 还用于通过输出设备 803向用 户终端发送所述目标装置的位置信息。
[0132] 可选地， 处理器 801， 还用于监测到所述目标装置的位置信息超出预设区域吋
， 通过输出设备 803向所述用户终端发送报警信息。
[0133] 可选地， 处理器 801， 还用于通过输出设备 803向所述用户终端发送所述用户终 端位置与所述目标装置位置之间的最优路线信息， 以使所述用户终端在地图上 显示所述最优路线信息。
[0134] 可选地， 处理器 801， 还用于通过输入设备 802获取图像采集装置采集到的所述 目标装置所在位置的图像信息， 并通过输出设备 803将所述图像信息发送至所述 用户终端。
[0135] 所述存储器 804， 用于存储软件程序、 模块和所述网络交互数据， 所述处理器 8 01通过运行存储在所述存储器 804的软件程序以及单元， 从而执行各种功能应用 以及数据处理， 实现终端的信息交互功能。
[0136] 应当理解， 在本发明实施例中， 所称处理器 801可以是中央处理单元 (Central Processing Unit, CPU) , 该处理器 801还可以是其他通用处理器、 数字信号处理 器（Digital Signal Processor, DSP)、 专用集成电路 (Application Specific Integrated Circuit, ASIC)、 现成可编程门阵列（Field-Programmable Gate Array， FPGA)或 者其他可编程逻辑器件、 分立门或者晶体管逻辑器件、 分立硬件组件等。 通用 处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
[0137] 输入设备 802可以包括触控板、 指纹采传感器 （用于采集用户的指纹信息和指 纹的方向信息） 、 麦克风等， 输出设备 803可以包括显示器 （LCD等） 、 扬声器 等。
[0138] 存储器 804可以包括只读存储器和随机存取存储器， 并向处理器 801提供指令和 数据。 存储器 804的一部分还可以包括非易失性随机存取存储器。 例如， 存储器 804还可以存储设备类型的信息。
[0139] 对应于上文实施例所述的物联网定位方法， 图 9示出了本发明实施例提供的物 联网定位系统的结构框图。 为了便于说明， 仅示出了与本实施例相关的部分。
[0140] 参照图 9， 该系统包括目标装置 91、 中转装置 92、 定位装置 93和用户终端 94。
[0141] 目标装置 91， 用于与所述中转装置 92进行通信。
[0142] 中转装置 92， 用于根据所述中转装置 92与所述目标装置 91通信的信号强度得出 与所述目标装置 91的距离信息， 并将所述距离信息发送至所述定位装置 93。
[0143] 定位装置 93， 用于接收多个所述中转装置 92发送的距离信息， 并根据多个所述 中转装置 92发送的距离信息得出所述目标装置 91所在的位置。
[0144] 用户终端 94， 用于接收所述定位装置 93发送的所述目标装置 91的位置信息。
[0145] 优选地， 定位装置 93还用于获取所述中转装置 92的位置信息； 并根据所述中转 装置 92的位置信息和多个所述中转装置 92发送的距离信息分析得出所述目标装 置 91所在的位置。
[0146] 优选地， 定位装置 93还用于监测到所述目标装置 91的位置信息超出预设区域吋
， 向所述用户终端 94发送报警信息。
[0147] 优选地， 定位装置 93还用于向所述用户终端 94发送所述用户终端 94位置与所述 目标装置 91位置之间的最优路线信息。
[0148] 用户终端 94还用于在地图上显示所述最优路线信息。
[0149] 优选地， 定位装置 93还用于获取图像采集装置采集到的所述目标装置 91所在位 置的图像信息， 并将所述图像信息发送至所述用户终端 94。
[0150] 本发明实施例中， 通过对多个中转装置发送的与目标装置的距离信息， 结合中 转装置所在的位置， 得出目标装置的位置信息， 实现对目标装置的定位。 本发 明实施例能够不使用 GPS定位模块， 仅通过通信模块实现定位功能， 降低了定位 装置的成本和功耗， 有助于定位装置的规模化实施。
[0151] 所属领域的技术人员可以清楚地了解到， 为了描述的方便和简洁， 仅以上述各 功能单元、 模块的划分进行举例说明， 实际应用中， 可以根据需要而将上述功 能分配由不同的功能单元、 模块完成， 即将所述装置的内部结构划分成不同的 功能单元或模块， 以完成以上描述的全部或者部分功能。 实施例中的各功能单 元、 模块可以集成在一个处理单元中， 也可以是各个单元单独物理存在， 也可 以两个或两个以上单元集成在一个单元中， 上述集成的单元既可以采用硬件的 形式实现， 也可以采用软件功能单元的形式实现。 另外， 各功能单元、 模块的 具体名称也只是为了便于相互区分， 并不用于限制本申请的保护范围。 上述系 统中单元、 模块的具体工作过程， 可以参考前述方法实施例中的对应过程， 在 此不再赘述。
[0152] 本领域普通技术人员可以意识到， 结合本文中所公幵的实施例描述的各示例的 单元及算法步骤， 能够以电子硬件、 或者计算机软件和电子硬件的结合来实现 。 这些功能究竟以硬件还是软件方式来执行， 取决于技术方案的特定应用和设 计约束条件。 专业技术人员可以对每个特定的应用来使用不同方法来实现所描 述的功能， 但是这种实现不应认为超出本发明的范围。
[0153] 所属领域的技术人员可以清楚地了解到， 为描述的方便和简洁， 上述描述的系 统、 装置和单元的具体工作过程， 可以参考前述方法实施例中的对应过程， 在 此不再赘述。
[0154] 在本发明所提供的几个实施例中， 应该理解到， 所揭露的装置和方法， 可以通 过其它的方式实现。 例如， 以上所描述的系统实施例仅仅是示意性的， 例如， 所述模块或单元的划分， 仅仅为一种逻辑功能划分， 实际实现吋可以有另外的 划分方式， 例如多个单元或组件可以结合或者可以集成到另一个系统， 或一些 特征可以忽略， 或不执行。 另一点， 所显示或讨论的相互之间的耦合或直接耦 合或通讯连接可以是通过一些接口， 装置或单元的间接耦合或通讯连接， 可以 是电性， 机械或其它的形式。
[0155] 所述作为分离部件说明的单元可以是或者也可以不是物理上分幵的， 作为单元 显示的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可 以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或者全部单元 来实现本实施例方案的目的。
[0156] 所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用 吋， 可以存储在一个计算机可读取存储介质中。 基于这样的理解， 本发明实施 例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部 或部分可以以软件产品的形式体现出来， 该计算机软件产品存储在一个存储介 质中， 包括若干指令用以使得一台计算机设备 （可以是个人计算机， 服务器， 或者网络设备等） 或处理器 （processor) 执行本发明实施例各个实施例所述方法 的全部或部分步骤。 而前述的存储介质包括： U盘、 移动硬盘、 只读存储器 （R OM， Read-Only Memory) 、 随机存取存储器 (RAM, Random Access Memory
) 、 磁碟或者光盘等各种可以存储程序代码的介质。
以上所述实施例仅用以说明本发明的技术方案， 而非对其限制； 尽管参照前述 实施例对本发明进行了详细的说明， 本领域的普通技术人员应当理解： 其依然 可以对前述各实施例所记载的技术方案进行修改， 或者对其中部分技术特征进 行等同替换； 而这些修改或者替换， 并不使相应技术方案的本质脱离本发明各 实施例技术方案的精神和范围， 均应包含在本发明的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种物联网定位方法， 其特征在于， 包括：
接收中转装置发送的所述中转装置与目标装置的距离信息， 所述距离 信息由所述中转装置根据所述中转装置与所述目标装置通信的信号强 度得出；
根据多个所述中转装置发送的距离信息得出所述目标装置所在的位置 向用户终端发送所述目标装置的位置信息。
[权利要求 2] 根据权利要求 1所述的物联网定位方法， 其特征在于， 所述根据多个 所述中转装置发送的距离信息得出所述目标装置所在的位置， 包括： 获取所述中转装置的位置信息；
根据所述中转装置的位置信息和多个所述中转装置发送的距离信息得 出所述目标装置所在的位置。
[权利要求 3] 根据权利要求 1所述的物联网定位方法， 其特征在于， 所述根据多个 所述中转装置发送的距离信息得出所述目标装置所在的位置， 之后还 包括：
监测到所述目标装置的位置信息超出预设区域吋， 向所述用户终端发 送报警信息。
[权利要求 4] 根据权利要求 1所述的物联网定位方法， 其特征在于， 所述根据多个 所述中转装置发送的距离信息得出所述目标装置所在的位置， 之后还 包括：
向所述用户终端发送所述用户终端位置与所述目标装置位置之间的最 优路线信息， 以使所述用户终端在地图上显示所述最优路线信息。
[权利要求 5] 根据权利要求 1-4任一项所述的物联网定位方法， 其特征在于， 还包 括：
获取图像采集装置采集到的所述目标装置所在位置的图像信息； 将所述图像信息发送至所述用户终端。
[权利要求 6] —种物联网定位装置， 其特征在于， 包括： 接收单元， 用于接收中转装置发送的所述中转装置与目标装置的距离 信息， 所述距离信息由所述中转装置根据所述中转装置与所述目标装 置通信的信号强度得出；
处理单元， 用于根据多个所述中转装置发送的距离信息得出所述目标 装置所在的位置；
发送单元， 用于向用户终端发送所述目标装置的位置信息。
根据权利要求 6所述的物联网定位装置， 其特征在于， 还包括： 报警单元， 用于监测到所述目标装置的位置信息超出预设区域吋， 向 所述用户终端发送报警信息。
根据权利要求 6所述的物联网定位装置， 其特征在于， 所述发送单元 ， 还用于向所述用户终端发送所述用户终端位置与所述目标装置位置 之间的最优路线信息， 以使所述用户终端在地图上显示所述最优路线 f π息。
根据权利要求 6-8任一项所述的物联网定位装置， 其特征在于， 还包 括：
获取单元， 用于获取图像采集装置采集到的所述目标装置所在位置的 图像信息；
所述发送单元， 还用于将所述图像信息发送至所述用户终端。
一种物联网定位系统， 其特征在于， 包括定位装置、 目标装置、 中转 装置和用户终端；
所述目标装置， 用于与所述中转装置进行通信；
所述中转装置， 用于根据所述中转装置与所述目标装置通信的信号强 度得出与所述目标装置的距离信息， 并将所述距离信息发送至所述定 位装置；
所述定位装置， 用于接收多个所述中转装置发送的距离信息， 并根据 多个所述中转装置发送的距离信息得出所述目标装置所在的位置； 所述用户终端， 用于接收所述定位装置发送的所述目标装置的位置信 息。
PCT/CN2017/093384 2017-06-16 2017-07-18 物联网定位方法、装置及系统 Ceased WO2018227697A1 (zh)

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