WO2017045452A1

WO2017045452A1 - Position-determining method, device, system and processing center

Info

Publication number: WO2017045452A1
Application number: PCT/CN2016/086740
Authority: WO
Inventors: 王莹; 陆建鑫; 徐继东
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-09-14
Filing date: 2016-06-22
Publication date: 2017-03-23
Also published as: CN106524900A

Abstract

Provided is a position-determining method, device, system and processing center, the method comprising: acquiring a first photosensitive parameter corresponding to two or more photosensitive components, wherein the two or more photosensitive components are respectively disposed at positions parallel with at least two intersecting edges of an array formed by the arrangement of one or more products to be positioned (S101); acquiring a second photosensitive parameter obtained after adjusting the first photosensitive parameter when the two or more photosensitive components detect that a first product to be positioned from among the one or more products to be positioned emits light (S102); and on the basis of the change in magnitude between the second photosensitive parameter and the first photosensitive parameter, determining a position of the first product to be positioned (S103).

Description

Position determination method, device, system and processing center

Technical field

The present application relates to, but is not limited to, the field of communications, and in particular, to a location determining method, apparatus, system, and processing center.

Background technique

With the deployment of Fiber To The Home (FTTH), the use of fiber in the fiber distribution network has increased dramatically, increasing the difficulty for the staff to manage the massive fiber. The performance is that the staff is on the massive fiber. It is difficult to locate, the paper label is easy to be damaged, the paper label is difficult to identify, and the connection change cannot be monitored. Therefore, a method for positioning a large amount of optical fiber is needed. Of course, the positioning method of the optical fiber can also be set as a warehouse and other large quantities. The positioning of items in the field of items, such as the positioning of goods on supermarket shelves, and the positioning of items in warehouses, to achieve the purpose of positioning people for dense items.

The traditional method and device for intensive identification (ID) positioning is mainly based on radio frequency (Radio Frequency, referred to as RF) (such as Global Positioning System (GPS), WiFi, Bluetooth, traditional radio frequency). The wireless transmission technology (Radio Frequency Identification (RFID), etc.) basically relies on the positioning method of a plurality of positioning algorithms, wherein the algorithm includes Time of arrival (TOA) and Angle of Arrival (angle of arrival). , referred to as AOA), Received Signal Strength Indication (RSSI), etc., due to a variety of positioning algorithms, traditional dense ID positioning devices usually have multiple (two or more) fixed positions. The RF signal read/write head is composed of a plurality of (two or more) RF signal transmitters, and the RF transmitter is searched in real time by using a fixed position RF signal read/write head, and the signal position information collected by the head is passed through the terminal. The positioning algorithm calculates the position information of the search point; however, using this method will cause the following problems: First, this The traditional dense ID positioning device is relatively complicated, requires too much power supply equipment, does not utilize some undesired power supply, and does not require a long-term environment for manpower; second, this traditional dense ID positioning device makes signals between environments The electromagnetic interference is very serious, and some environments that do not want electromagnetic interference are not suitable. Third, this traditional method of dense ID positioning requires the geometric calculation and mathematical formula approximation of multi-point information. The positioning process is equivalent. Complex, and in some cases, the most positioned The final information will be biased due to the approximation of the mathematical formula, resulting in low positioning accuracy. Therefore, in the related art, there is a problem that the positioning device is complicated and the positioning accuracy is low.

In view of the complexity of the positioning equipment and the problem of the positioning accuracy in the related art, an effective solution has not been proposed yet.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a method, a device, a system and a processing center for determining a position, which solves the problem that the positioning device existing in the related art is complicated and the positioning accuracy is low.

A position determining method includes: acquiring first photosensitive parameters corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at at least two of an array arranged with one or more articles to be positioned Positioning the sides in parallel; obtaining the two or more photosensitive devices, after detecting that the first to-be-positioned item in the one or more items to be positioned is illuminated, adjusting the first photosensitive parameter a second sensitizing parameter; determining a position of the first item to be positioned according to a magnitude of change between the second sensible parameter and the first sensible parameter.

Optionally, the implementation manner of the first item to be positioned to emit light includes: the radio frequency identification RFID tag on the first item to be positioned receives a radio frequency signal sent by an RFID reader, wherein the radio frequency signal carries a predetermined Identification information; the RFID tag determines whether the predetermined identification information is consistent with its own identification information; and if the determination result is that the predetermined identification information is consistent with its own identification information, the RFID tag controls the RFID tag The LEDs emit light.

Optionally, the method further includes: before determining the location of the first item to be located, receiving the item information reported by the RFID reader/writer after reading the item information of the item to be located, The item information includes the identification information and the category information of the item to be located; after determining the position of the first item to be positioned, correspondingly storing the item information of the first item to be positioned and the position of the position information.

Optionally, the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more objects to be positioned are arranged: the two or more photosensitive devices respectively Located at a position parallel to all sides of the array.

A location determining apparatus includes: a first obtaining module, a second acquiring module, and a determining module.

a first obtaining module, configured to acquire a first photosensitive parameter corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at at least two intersecting edges of the array arranged with one or more objects to be positioned Parallel position.

a second obtaining module, configured to acquire, when the two or more photosensitive devices detect that the first to-be-positioned item in the one or more items to be positioned emits light, adjust the first photosensitive parameter to obtain The second sensitization parameter.

The determining module is configured to determine a position of the first item to be positioned according to a magnitude of change between the second photosensitive parameter and the first photosensitive parameter.

Optionally, the device further includes: a receiving module and a storage module.

a receiving module, configured to receive, after the determining module determines the location of the first item to be located, the item information reported by the RFID reader/writer after reading the item information of the item to be located, wherein The item information includes at least identification information and category information of the item to be located.

The storage module is configured to, after the determining module determines the location of the first item to be located, correspondingly store the item information of the first item to be positioned and the position information of the position.

Optionally, the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more objects to be positioned are arranged: the two or more photosensitive devices are respectively located and All sides of the array are in parallel positions.

A processing center comprising the apparatus of any of the above.

A location determining system, including the processing center described above, the system further comprising: a radio frequency Identify RFID readers, RFID tags, and more than two sensors.

The RFID reader/writer is configured to perform one or more of the following operations: transmitting a radio frequency signal carrying predetermined identification information, reading item information of one or more items to be located, and reporting the read item information to the The processing center, wherein the item information includes at least identification information and category information of the item to be located.

The RFID tag is located on the item to be located, configured to receive the radio frequency signal; compare the identification information of the RFID tag with the predetermined identification information; and control the RFID if the comparison result is consistent The LEDs in the tag illuminate.

The two or more photosensitive devices are configured to adjust the first photosensitive parameter of the two or more photosensitive devices according to the intensity of the light emitted by the LED to obtain a second photosensitive parameter; and report the second photosensitive parameter to the The processing center, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which one or more articles to be positioned are arranged.

Optionally, the system further includes a light guiding device, the light guiding device is filled in a channel formed by a gap between the items to be positioned in a horizontal and vertical channel manner.

The first photosensitive parameter corresponding to the two or more photosensitive devices is obtained by the solution of the embodiment of the present invention, wherein the two or more photosensitive devices are respectively located at at least two of the arrays arranged with one or more items to be positioned. Positioning the sides in parallel; obtaining the two or more photosensitive devices, after detecting that the first to-be-positioned item in the one or more items to be positioned is illuminated, adjusting the first photosensitive parameter a second sensitizing parameter; determining a position of the first item to be positioned according to a magnitude of change between the second sensible parameter and the first sensible parameter. The invention solves the problems that the positioning device existing in the related technology is complicated and the positioning precision is low, thereby achieving the effect of reducing the complexity of the positioning device and improving the positioning accuracy.

BRIEF abstract

1 is a flow chart of a location determining method according to an embodiment of the present invention;

2 is a schematic structural view of an RFID tag according to an embodiment of the present invention;

3 is a block diagram showing the structure of a position determining apparatus according to an embodiment of the present invention;

4 is a block diagram showing a preferred structure of a position determining device according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of a processing center according to an embodiment of the present invention; FIG.

6 is a structural block diagram of a position determining system according to an embodiment of the present invention;

7 is a schematic overall frame view of a dense ID optical wireless positioning device in accordance with an embodiment of the present invention;

FIG. 8 is a schematic diagram of a specific implementation manner 1 of dense ID optical wireless positioning according to an embodiment of the present invention; FIG.

9 is a schematic diagram of a second embodiment of a dense ID optical wireless positioning according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a third embodiment of a dense ID optical wireless positioning according to an embodiment of the present invention; FIG.

11 is a schematic diagram of a communication flow of a dense ID optical wireless positioning apparatus according to an embodiment of the present invention.

Embodiments of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It should be noted that the terms "first", "second" and the like in the specification and claims of the embodiments of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. order.

In this embodiment, a location determining method is provided. FIG. 1 is a flowchart of a location determining method according to an embodiment of the present invention. As shown in FIG. 1, the process includes steps S101-S103:

Step S101: Acquire a first photosensitive parameter corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which one or more objects to be positioned are arranged.

Step S102: Acquire a second obtained by adjusting the first photosensitive parameter when the two or more photosensitive devices detect that the first to-be-positioned item in the one or more items to be positioned emits light. Sensitive parameters.

Step S103, determining a position of the first item to be positioned according to a magnitude of change between the second photosensitive parameter and the first photosensitive parameter.

In the above embodiment, a plurality of photosensitive devices may be placed in advance around the array of articles to be positioned, so that the photosensitive device closest to the first object to be positioned may be determined by the variation range of the photosensitive parameters of the photosensitive device, and the photosensitive device is The position may be predetermined, so that the above-mentioned photosensitive device can be used as a positioning device to determine the position of the first item to be positioned, thereby reducing the complexity of the positioning device, and there is no electromagnetic influence between the photosensitive devices, so The positioning accuracy is improved, and the problem that the positioning device is complicated and the positioning accuracy is low in the related art is solved, thereby achieving the effect of reducing the complexity of the positioning device and improving the positioning accuracy.

In an optional embodiment, the implementation of the first item to be positioned to emit light may include: receiving, by the radio frequency identification (RFID) tag on the first item to be positioned, a radio frequency signal sent by the RFID reader, wherein the radio frequency signal Carrying predetermined identification information; the RFID tag determines whether the predetermined identification information is consistent with its own identification information; and if the determination result is that the predetermined identification information is consistent with its own identification information, the RFID tag controls the RFID tag A light emitting diode (Light Emitting Diode, abbreviated as LED) emits light. In this embodiment, the RFID tag is an RFID tag with self-illuminating capability, and the RFID tag has a plurality of structures. For example, the RFID tag may include an antenna, an RFID chip, and an LED lighting device, as shown in FIG. 2, FIG. Is a schematic structural diagram of an RFID tag according to an embodiment of the present invention, wherein the LED lighting device may include an LED lamp and a driving circuit, in which the radio frequency signal carrying specific identification information (such as specific ID information) may be received through the antenna, After comparing the ID with the ID of the RFID chip itself, if the ID is determined to be correct, the RFID chip drives the LED circuit to turn on and off, lighting or turning off the LED lamp; if it is determined that the ID is incorrect, the RFID chip does not drive the opening of the LED circuit. Off, the LED light remains off.

In an optional embodiment, before determining the location of the first item to be located, the method further includes: receiving the item information reported by the RFID reader after reading the item information of the item to be located, wherein the The item information includes at least the identification information and the category information of the item to be located, wherein the category information is specific type information of the item to be located (for example, when the item to be positioned is the item on the supermarket shelf, the category information may be “peanut oil”). , "rice", etc.); After the location of the item to be located, the method further includes: correspondingly storing the item information of the first item to be located and the position information of the position. Thereby, the worker can quickly determine the position of the item, and after the position of the subsequent item is moved, the original position of the item can be determined, thereby placing the item back to the original position.

In an optional embodiment, the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged: the two or more photosensitive devices are respectively located At a position parallel to all sides of the above array. That is, a photosensitive member is disposed at a parallel position of each side of the array in which the articles to be positioned are arranged, so that the position of any item to be positioned in the array can be accurately positioned.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium (such as ROM/RAM, disk). The optical disc includes a plurality of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method described in the embodiments of the present invention.

In the embodiment, a position determining device is also provided, which is configured to implement the above-mentioned embodiments and optional embodiments, and details have been omitted for description. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

3 is a structural block diagram of a position determining apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes a first acquiring module 31, a second acquiring module 32, and a determining module 33, which will be described below.

The first obtaining module 31 is configured to acquire a first photosensitive parameter corresponding to the two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at at least two intersecting edges of the array arranged with the one or more objects to be positioned a second obtaining module 32, connected to the first acquiring module 31, configured to obtain the above two or more photosensitive devices in the case that the first to-be-positioned item in one or more items to be positioned is detected to emit light , obtained by adjusting the first photosensitive parameter The second sensing parameter determining module 33 is connected to the second acquiring module 32, and is configured to determine the position of the first item to be positioned according to the magnitude of the change between the second sensing parameter and the first sensing parameter.

In an optional embodiment, the implementation of the first to-be-positioned item is performed by: the radio frequency identification RFID tag on the first item to be positioned receives the radio frequency signal sent by the RFID reader, wherein the radio frequency signal carries Predetermined identification information; the RFID tag determines whether the predetermined identification information is consistent with its own identification information; and if the determination result is that the predetermined identification information is consistent with its own identification information, the RFID tag controls the LED of the RFID tag to perform Glowing. The structure of a specific RFID tag has been stated in the foregoing embodiments, and will not be described herein.

4 is a block diagram showing a preferred structure of a location determining apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes a receiving module 41 and a storage module 42 in addition to all the modules shown in FIG. The device is described.

The receiving module 41 is connected to the determining module 33, and is configured to receive the item information reported by the RFID reader/writer after reading the item information of the item to be positioned, before determining the position of the first item to be positioned, wherein the The item information includes at least the identification information and the category information of the item to be located; the storage module 42 is connected to the determining module 33, and is configured to store the item information of the first item to be positioned after determining the position of the first item to be positioned. And location location information.

In an optional embodiment, the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged: the two or more photosensitive devices are respectively located At a position parallel to all sides of the above array.

5 is a block diagram showing the structure of a processing center according to an embodiment of the present invention. As shown in FIG. 5, the processing center 51 includes the position determining means 52 of any of the above.

6 is a structural block diagram of a position determining system according to an embodiment of the present invention. As shown in FIG. 6, the system includes the above-described processing center 51, and further includes a radio frequency identification RFID reader/writer 61, an RFID tag 62, and two or more photosensitive devices. 63, wherein the RFID reader/writer 61 is configured to perform one or more of the following operations: transmitting a radio frequency signal carrying predetermined identification information; reading item information of one or more items to be located, and reading the above-mentioned item The information is reported to the processing center 51, wherein the item information includes at least the identification information and the category information of the item to be located; the RFID tag 62 is located on the item to be positioned, and is configured to receive the radio frequency signal; and the identification information of the RFID tag 62 is Predetermined identification information for comparison; in the case where the comparison result is that the identification information is consistent with the predetermined identification information The LEDs in the RFID tag 62 are controlled to emit light; the two or more photosensitive devices 63 are arranged to adjust the first sensing parameters of the two or more photosensitive devices 63 according to the intensity of the light emitted by the LEDs to obtain a second photosensitive parameter; The second sensation parameter is reported to the processing center 51, wherein the two or more photosensitive devices 63 are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged.

In an optional embodiment, the two or more photosensitive device segments 66 are located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged: the two or more photosensitive devices 66 are located at positions parallel to all sides of the array described above.

In an alternative embodiment, the system further includes a light guiding device that fills the channel formed by the gap between the items to be positioned in a horizontal and vertical channel. Therefore, when the channel is blocked, the photosensitive device can also correctly receive the light emitted by the object to be positioned through the light guiding device, thereby improving the positioning accuracy.

In the above embodiment, the item to be positioned may be a fiber optic cable connector, or may be a product on a supermarket shelf. Of course, it may be other items. The following is an example in which the object to be positioned is a fiber optic cable connector. The examples are described. In the following embodiments, the RFID read/write head may be simply referred to as a read/write head.

In an embodiment of the present invention, a method and apparatus for dense ID optical wireless positioning based on a self-illuminating RFID tag and a photosensitive device are provided, which is a system for automatically positioning a fiber port, by placing a self for each fiber connector The illuminated label, in conjunction with the light-sensitive device near the port, enables rapid detection and positioning of the fiber optic connector.

7 is a schematic diagram of the overall frame of a dense ID optical wireless positioning device according to an embodiment of the present invention. As shown in FIG. 7, the device includes an RFID read/write head (corresponding to the RFID reader/writer 62 described above) and a plurality of self-illuminating devices. RFID tag (corresponding to the above-mentioned RFID tag 64), a plurality of photosensitive devices (corresponding to the above-mentioned photosensitive device 66), wherein the position of the self-illuminating RFID tag and the photosensitive device are taken in a one-to-one manner; dense ID positioning The overall working method of the method and device is that, firstly, the RFID read/write head first reads the plurality of tags according to the point-to-multipoint protocol; then, the read/write head starts to read a fixed ID and issues a lighting command, a single self The illuminating RFID tag receives the radio frequency signal of the specific ID through the antenna, and compares the ID with the ID of the RFID chip itself. If the ID is determined to be correct, the RFID chip drives the LED circuit to turn on and off, thereby lighting or turning off the LED. If the LED is determined to be incorrect, the RFID chip does not execute the command, and the LED remains in the off state. Finally, after the photosensitive device senses the intensity of the LED, its corresponding sensitivity parameter changes, and the parameter change is compared by comparing the photosensitive device. Select the most sensitive photosensitive device to locate the location of the ID tag and manage the location information and ID.

8 is a schematic diagram of Embodiment 1 of dense ID optical wireless positioning according to an embodiment of the present invention. As shown in FIG. 8, dense items are arranged in an M*N array, wherein the dense items are fiber optic cable connectors, and the position thereof is as shown in FIG. 8. Shown. The photosensitive device is arranged in one-to-one correspondence with one set of mutually perpendicular long-side and wide-side objects in the dense object array; the optical fiber connector is attached with a self-illuminating RFID tag, and each row of photosensitive devices is connected in series through the power line and managed in the background. The center is connected; the staff holds the RFID read/write head into the dense goods placement area, or opens the RFID read/write head mounted on the fiber connection box. According to the point-to-multipoint protocol, the head starts reading multiple tags and transmits the tag information to the background processing center. Then the read/write head starts to read a fixed ID, and the ID is reported to the background, on the fiber optic cable. The self-illuminating RFID tag receives the radio frequency signal of the specific ID through the antenna, and compares the ID with the ID of the RFID chip itself. If the ID is determined to be correct, the RFID chip starts to drive the LED circuit to illuminate the LED lamp; if the ID is determined to be incorrect, the RFID The chip ignores the RF signal and the LED is not illuminated. After the photosensitive device senses the LED light, the photosensitive parameter of the device changes, and the data of the parameter change is transmitted to the background processing center through the power line communication. In the background, by comparing the data of the photosensitive device, the four orthogonal (two orthogonal) photosensing with the largest change are selected. The device locates the specific location information of the ID tag, and the background information is managed in association with the previously reported ID, and the lighting of the LED light also enables the person to clearly see the fixed ID item.

9 is a schematic diagram of Embodiment 2 of dense ID optical wireless positioning according to an embodiment of the present invention. As shown in FIG. 9, dense items are arranged in an M*N array, wherein the dense items may be fiber optic cable connectors, photosensitive devices and dense The four outer items of the item array are arranged one-to-one; one item is attached with a self-illuminating RFID tag, and each row of photosensitive devices is connected in series with the background management center through the power line; the staff holds the RFID read/write head to enter the intensive goods. After placing the area, or open the RFID read/write head mounted on the fiber connection box. According to the point-to-multipoint protocol, the head starts reading multiple tags and transmits the tag information to the background processing center. Then the read/write head starts to read a fixed ID, and the ID is reported to the background, and the fiber connector is connected. The self-illuminating RFID tag receives the RF signal of the specific ID through the antenna, and compares the ID with the ID of the RFID chip itself, if If the ID is correct, the RFID chip starts to drive the LED circuit and illuminate the LED lamp; if it is determined that the ID is incorrect, the RFID chip ignores the RF signal and the LED is not illuminated. After the photosensitive device senses the LED light, the device parameters change, and the data is transmitted to the background processing center through the power line communication. In the background, by comparing the parameter changes of the photosensitive device, the four groups of photosensitive devices with the largest change are selected to locate the specific position of the ID tag. Information, the background information is managed in association with the previously reported ID, and the lighting of the LED light also enables the person to clearly see the fixed ID item. This method has a set of photosensitive devices on the outside of the dense items. No matter which position of the object is in the array, the photosensitive device can receive specific information, so that the positioning information is accurate and there is no duplication and error.

10 is a schematic diagram of Embodiment 3 of dense ID optical wireless positioning according to an embodiment of the present invention. As shown in FIG. 10, dense items are arranged in an M*N array, wherein the dense items may be fiber optic cable connectors, in order to prevent photosensitive channels. Blocked and blocked, M*N transparent plastic or other light-guide material channels can be placed between the arrays of goods, that is, the gap between the fiber-optic connectors is filled with light-guiding materials for horizontal and vertical channels, so that even if there is a channel blockage And occlusion, the illuminating information of the self-illuminating RFID, or the photosensitive device that can be transmitted to the four peripheral edges through the light guiding material.

The photosensitive device is arranged in one-to-one correspondence with the four outer items of the dense object array; each item is attached with a self-illuminating RFID tag, and each row of photosensitive devices is connected in series with the background management center through the power line; the staff is armed with RFID reading and writing After the head enters the dense goods placement area, or open the RFID read/write head mounted on the fiber connection box. According to the point-to-multipoint protocol, the head starts reading multiple tags and transmits the tag information to the background processing center. Then the read/write head starts to read a fixed ID, and the ID is reported to the background, and the fiber connector is connected. The self-illuminating RFID tag receives the radio frequency signal of the specific ID through the antenna, and compares the ID with the ID of the RFID chip itself. If the ID is determined to be correct, the RFID chip starts to drive the LED circuit to illuminate the LED lamp; if it is determined that the ID is incorrect, then The RFID chip ignores the RF signal and the LED is not illuminated.

Even if the channel is blocked or blocked, the LED light intensity can be introduced into the corresponding edge photosensitive device through the light guiding channel. After the photosensitive device senses the LED light introduced through the light guiding device, the device parameters change and the data passes through the power line. The communication is transmitted to the background processing center, and the background changes the parameter variation of the photosensitive device, selects the four groups of photosensitive devices with the largest change to locate the position information of the ID tag, and the background information is managed in association with the previously reported ID, and the LED is simultaneously The lighting of the lights also allows the person to clearly see the fixed ID item. Due to the dense array of objects The columns are filled with light guiding channels. Even if there are blockages and blockages in the dense object channels, the light intensity emitted by the LEDs can be transmitted to the corresponding edge photosensitive device through the light guiding channel, and the photosensitive device can still receive information and is sensitive. The sensitivity of the device is not reduced, the positioning information is more accurate, and there is no duplication or error.

11 is a schematic diagram of a communication flow of a dense ID optical wireless positioning apparatus according to an embodiment of the present invention. As shown in FIG. 11, the flow includes steps S1101-S1112:

In step S1101, the RFID read/write head is turned on.

Step S1102: The head starts reading a plurality of tags according to the point-to-multipoint protocol, and transmits the tag information to the background processing center.

In step S1103, the head selects a tag ID, issues a lighting command, and reports the ID to the background.

Step S1104: The self-luminous RFID tag on the optical fiber cable receives the radio frequency signal of the specific ID through the antenna, and compares the ID with the ID of the RFID chip itself. If the ID is determined to be correct, the process goes to step S1105. Otherwise, the RFID chip ignores the radio frequency signal. The LED is not illuminated.

In step S11105, the RFID chip drives the LED circuit to illuminate the LED lamp.

In step S1106, each photosensitive device is driven by the background to start detecting the brightness of the label, and the data detecting the change of the corresponding light intensity of the photosensitive device is reported to the background through the power line.

In step S1107, the function of the positioning detection system is turned on in the background, and the reported data is compared and analyzed, and the position information of the photosensitive device that receives the maximum light intensity is determined, thereby obtaining the position information of the light-emitting label.

In step S1108, the background associates the specific location information with the ID reported by the previous head.

In step S1109, the background notifies the head to close the illuminating label of the fixed ID.

In step S1110, the head transmits a close lighting command according to the point-to-multipoint communication protocol.

In step S1111, after receiving the command, the RFID bright tag compares the ID information carried in the command with its own ID. When the comparison result is consistent, the process goes to step S1112; otherwise, the light-emitting state is maintained.

In step S1112, the RFID bright label turns off the LED illumination.

The head can initiate the lighting and positioning of the next label until all the labels are positioned.

It should be noted that each of the foregoing modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. Acquire a first photosensitive parameter corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting edges of the array in which one or more objects to be positioned are arranged.

S2. Acquire a second sensible parameter obtained by adjusting the first sensible parameter when the two or more photosensitive devices detect that one of the one or more items to be positioned emits light.

S3. Determine a position of the first item to be positioned according to a magnitude of change between the second sensing parameter and the first sensing parameter.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in the embodiment, the processor performs the above steps S1-S3 according to the stored program code in the storage medium.

For example, the examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

In the embodiment of the present invention, it is based on the illuminability of the self-illuminating RFID tag, the detectability of the device parameter change after the photosensitive device senses the light, the passive performance of the self-illuminating RFID tag and the photosensitive device, the RFID and the self-luminous The point-to-multipoint optical wireless communication performance of the RFID tag, and the advantage that the RFID read/write head needs to be opened when it is used, so that the device and method for dense ID optical wireless positioning based on the self-luminous RFID device and the photosensitive device are compared with the conventional Dense ID positioning method and The device has the advantages of relatively simple device, no power supply, small electromagnetic interference, no algorithm for positioning, and clear and accurate positioning.

It will be apparent to those skilled in the art that each module or step of the above-described embodiments of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed across 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 The steps shown or described herein are performed sequentially, or they are separately fabricated into a plurality of integrated circuit modules, or a plurality of the modules or steps are fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

The above is only an alternative embodiment of the present invention, and is not intended to limit the embodiments of the present invention. For those skilled in the art, the present invention may be variously modified and changed. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Claims

A position determining method comprising:

Obtaining a first photosensitive parameter corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting edges of the array in which one or more objects to be positioned are arranged;

Obtaining, by the two or more photosensitive devices, the second photosensitive parameter obtained by adjusting the first photosensitive parameter when detecting that the first to-be-positioned item in the one or more items to be positioned emits light;

Determining a position of the first item to be positioned according to a magnitude of change between the second photosensitive parameter and the first photosensitive parameter.
The position determining method according to claim 1, wherein the implementation of the first item to be positioned to emit light comprises:

The radio frequency identification (RFID) tag on the first to-be-positioned item receives the radio frequency signal sent by the RFID reader/writer, wherein the radio frequency signal carries predetermined identification information;

Determining, by the RFID tag, whether the predetermined identification information is consistent with its own identification information;

In a case where the result of the determination is that the predetermined identification information coincides with the identification information of the self, the RFID tag controls the light emitting diode LED in the RFID tag to emit light.
The location determining method according to claim 2, the method further comprising:

Before determining the location of the first item to be located, receiving the item information reported by the RFID reader/writer after reading the item information of the item to be positioned, wherein the item information includes the to-be-determined Identification information and category information of the item;

After determining the location of the first item to be positioned, the item information of the first item to be positioned and the position information of the position are correspondingly stored.
The position determining method according to claim 1, wherein the two or more photosensitive members are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged:

The two or more photosensitive devices are respectively located at positions parallel to all sides of the array.
A location determining apparatus includes: a first acquiring module, a second acquiring module, and a determining module;

The first obtaining module is configured to acquire first photosensitive parameters corresponding to two or more photosensitive devices, wherein the two or more photosensitive devices are respectively located in at least two of the arrays arranged with one or more items to be positioned The position where the intersecting edges are parallel;

The second obtaining module is configured to acquire, when the two or more photosensitive devices detect that the first to-be-positioned item in the one or more items to be positioned emits light, adjust the first photosensitive parameter The second sensitization parameter obtained afterwards;

The determining module is configured to determine a position of the first item to be positioned according to a magnitude of change between the second photosensitive parameter and the first photosensitive parameter.
The position determining device according to claim 5, wherein the implementation of the first item to be positioned to emit light comprises:

The radio frequency identification (RFID) tag on the first to-be-positioned item receives the radio frequency signal sent by the RFID reader/writer, wherein the radio frequency signal carries predetermined identification information;

Determining, by the RFID tag, whether the predetermined identification information is consistent with its own identification information;

In a case where the result of the determination is that the predetermined identification information coincides with the identification information of the self, the RFID tag controls the light emitting diode LED in the RFID tag to emit light.
The location determining apparatus according to claim 6, further comprising: a receiving module and a storage module;

The receiving module is configured to receive, after the determining module determines the location of the first item to be located, the item information reported by the RFID reader/writer after reading the item information of the item to be located The item information includes at least identification information and category information of the item to be located;

The storage module is configured to, after the determining module determines the location of the first item to be located, correspondingly store the item information of the first item to be positioned and the position information of the position.
The position determining device according to claim 5, wherein the two or more photosensitive members are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more articles to be positioned are arranged:

The two or more photosensitive devices are respectively located at positions parallel to all sides of the array.
A processing center comprising the apparatus of any one of claims 5 to 8.
A position determining system comprising the processing center of claim 9, the system further comprising: a radio frequency identification RFID reader, an RFID tag, and two or more photosensitive devices;

The RFID reader/writer is configured to perform one or more of the following operations: transmitting a radio frequency signal carrying predetermined identification information, reading item information of one or more items to be located, and reporting the read item information to the a processing center, wherein the item information includes identification information and category information of the item to be located;

The RFID tag is located on the item to be located, configured to receive the radio frequency signal; compare the identification information of the RFID tag with the predetermined identification information; and control the RFID if the comparison result is consistent The LEDs in the tag emit light;

The two or more photosensitive devices are configured to adjust the first photosensitive parameter of the two or more photosensitive devices according to the intensity of the light emitted by the LED to obtain a second photosensitive parameter; and report the second photosensitive parameter to the The processing center, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which one or more articles to be positioned are arranged.
The position determining system of claim 10, wherein the two or more photosensitive devices are respectively located at positions parallel to at least two intersecting sides of the array in which the one or more items to be positioned are arranged:

The two or more photosensitive devices are respectively located at positions parallel to all sides of the array.
The position determining system according to claim 10, further comprising a light guiding device, the light guiding device being filled in a channel formed by a slit between the articles to be positioned in a horizontal and vertical channel type.
A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the location determining method of any one of claims 1 to 4.