WO2024078257A1

WO2024078257A1 - System and method for seeking missing object

Info

Publication number: WO2024078257A1
Application number: PCT/CN2023/119061
Authority: WO
Inventors: 黄宇安; 赵子翘
Original assignee: 奥方科技有限公司
Priority date: 2022-10-11
Filing date: 2023-09-15
Publication date: 2024-04-18
Also published as: CN115616613A

Abstract

The present invention relates to the technical field of seeking missing objects, and provides a system and method for seeking a missing object. The system comprises: a seeking indication module, which receives instruction information for seeking a missing object and transmits the instruction information to a seeking logic module; the seeking logic module, which according to the instruction information, instructs a fixed tracking device and/or a mobile tracking device within a corresponding communication range to start up, sends activation information to an identification device within the communication range, and sends location information of the current fixed tracking device in a predetermined space and/or positioning information of the mobile tracking device to a location calculation module; a sought object information sending module, which receives the activation information and sends a unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device; and the location calculation module, which obtains location information of the missing object according to the received location information and/or positioning information. Therefore, according to the present invention, a missing object can be sought in an environment in which there is a high flow of people or logistics and a high flow speed.

Description

System and method for finding missing objects

Technical Field

The present invention relates to the technical field of missing object searching, and in particular to a system and method for searching a missing object.

Background technique

In the prior art, objects may move according to their own movement rules, and it is more likely that external forces will change their movement patterns or speeds, making it difficult to track or find specific objects. In the prior art, identification devices are fixedly or removably installed in the movable objects to be tracked. These identification devices have unique identification numbers and send unique identification numbers to the surrounding areas using different short-range communication protocols. Fixed tracking devices are installed in the spaces where these movable objects may move. These fixed tracking devices use the short-range communication protocols that are suitable for the identification devices to receive the unique identification numbers sent by the identification devices.

Specifically, the device location data of these fixed tracking devices have established a fixed tracking device database, which is combined with the geographic database of the searched space. When a unique identification number is received by one or more tracking devices, a search application can calculate the location of the movable object associated with the unique identification number. The prior art includes a large space, such as a school, hospital or train station, in which tracking devices are fixedly installed, and the geographical locations of all fixed tracking devices installed in the space are stored in digital form in a three-dimensional Cartesian coordinate system or other methods. That is, the location of the tracking device can be found in the database. Therefore, the prior art is to calculate the location of the movable object associated with the unique identification number after one or more tracking devices receive a unique identification number.

In a preferred prior art, German patent application DE10357023A1 (filing date: December 3, 2003, hereinafter referred to as D1) discloses an invention for tracking and searching a movable device, wherein an identification device is installed on the movable and searched object, and the identification device sends its unique identification number to the adjacent space in an effective short-range communication method. One or more tracking devices can be fixedly installed in the effective search space, or can be moved in a movable manner in the effective search space to receive the unique identification number. The fixedly installed tracking device has recorded its location by default, represented by three-dimensional Cartesian coordinates or other numbers. The mobile tracking device is further equipped with a built-in function to calculate its location. That is, the mobile tracking device. When the device receives the unique identification number, it also calculates the location of the mobile tracking device at that time.

However, this existing technology limits the convenience of starting the search. In some scenarios where the flow of people and logistics and the speed vary greatly over time, the fixed base station is pre-designed for installation and installation, and the fixed Cartesian coordinates are recorded and a database of the tracking device (fixed base station) is established. This design needs to cope with the search for lost items in an environment with the highest flow of people, logistics and flow speed, which will become difficult.

For example, in a multimodal transportation station, most people go from residential areas to commercial areas to go to work in the morning, and most people go from commercial areas to residential areas in the evening. This requires different quantities and powers for the installation and use of fixed base stations of tracking devices required for searching objects in the entire station. When it is necessary to search for a certain object, such as a handbag, luggage cart, wheelchair, etc., or some special identification objects attached to an individual, these objects are most likely to stop at one point following the flow of people, that is, stop in the process of the most people and logistics flow. If you want to search and rely on the fixed base station tracking device that has been fixedly installed, the close-range communication may be blocked by the dense moving people and objects. This will make it difficult to find missing objects in an environment with high people flow, logistics and flow speed.

In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it.

Summary of the invention

In view of the above-mentioned defects, the object of the present invention is to provide a system and method for finding a missing object, so as to realize finding a missing object in an environment with high flow of people, logistics and flow speed.

In order to achieve an inventive object of the present invention, the present invention provides a system for finding a missing object, which is used to find a missing object, including multiple fixed tracking devices, multiple mobile tracking devices, multiple identification devices and a server, characterized in that the system includes:

a search instruction module, arranged in the mobile tracking device and/or the server, for receiving instruction information for searching the missing object and transmitting the instruction information to the search logic module; the instruction information includes a unique identification code for identifying the missing object;

a search logic module, arranged in the mobile tracking device and/or the server, for instructing the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start according to the instruction information, and sending activation information to the identification device within the communication range, and sending the current position information of the fixed tracking device within the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module;

A search object information sending module is provided in the identification device and is used to receive the activation information. and sending the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device;

The location calculation module is arranged in the mobile tracking device and/or the server, and is used to obtain the location information of the missing object according to the received location information and/or positioning information when receiving the unique identification code of the missing object.

According to the system, the system further comprises:

A drawing module, provided on the mobile tracking device and/or the server, for drawing a route map from the position of the mobile tracking device to the position of the missing object according to the positioning information and the position information of the missing object;

A display device is provided on the mobile tracking device and/or the server, and is used to display the location information of the missing object and/or the route map.

According to the system, the system further comprises:

A search instruction input module, provided in the mobile tracking device and/or the server, for inputting instruction information for searching for the missing object;

a database, arranged on the server, for storing device codes of the fixed tracking device and the mobile tracking device, the three-dimensional spatial coordinates of the fixed tracking device in the predetermined space, and the unique identification code of the missing object; wherein the device code of the fixed tracking device corresponds to its three-dimensional spatial coordinates;

The query module is arranged in the fixed tracking device, and is used to query the three-dimensional space coordinates of the fixed tracking device in the predetermined space in the database after the fixed tracking device is started, and send the three-dimensional space coordinates to the search logic module.

According to the system, the system further comprises:

a forwarding module, provided in the fixed tracking device and/or the mobile tracking device, for sending the unique identification code to the server upon receiving the unique identification code of the missing object;

A timing prompt module is provided in the mobile tracking device and/or the server, and is used to time the time of receiving the unique identification code of the missing object, and resend the instruction information to the search logic module when the time exceeds a preset time.

According to the system, the search logic module includes:

An instruction information receiving submodule, which is arranged in the mobile tracking device and/or the server, and is used to receive instruction information for finding the missing object sent by the finding instruction module;

The command information parsing and sending submodule is arranged in the mobile tracking device and/or the server, and is used to Analyzing the instruction information, and sending a start instruction information to the fixed tracking device and/or the mobile tracking device within the communication range corresponding to the instruction information;

a fixed tracking device information sending submodule, arranged in the fixed tracking device, for receiving the three-dimensional spatial coordinates of the fixed tracking device in the predetermined space sent by the query module, and sending the three-dimensional spatial coordinates to the position calculation module; and sending activation information to the identification device within the communication range;

The positioning information sending submodule is arranged in the mobile tracking device, and is used to send the positioning information of the mobile tracking device to the position calculation module; and send activation information to the identification device within the communication range.

According to the system, the fixed tracking device and the mobile tracking device respectively communicate with the identification device at a short distance;

The fixed tracking device and the mobile tracking device are respectively connected to the server communication network.

According to the system, the fixed tracking device is a base station; the mobile tracking device is a mobile terminal; the server is a server of the communication network; the identification device is arranged on the missing object;

The short-distance communication is Bluetooth communication.

According to the system, the seeking instruction input module includes a keyboard and/or a mouse of the mobile tracking device and/or the server;

The three-dimensional space coordinates are Cartesian coordinates; the positioning information is the GPS positioning information of the mobile tracking device;

The predetermined space includes a school, hospital, shopping mall, bus station or railway station;

The missing object is an item or a person who needs care.

In order to achieve another inventive object of the present invention, the present invention also provides a method for finding a missing object using any one of the above-mentioned systems for finding a missing object, the system comprising a plurality of fixed tracking devices, a plurality of mobile tracking devices, a plurality of identification devices and a server, the mobile tracking devices and/or the server comprising a search indication module, a search logic module and a position calculation module, the identification device comprising a search object information sending module, the method comprising:

The search instruction module receives instruction information for searching the missing object and transmits the instruction information to the search logic module; the instruction information includes a unique identification code for identifying the missing object;

The search logic module instructs the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start up according to the instruction information, and sends activation information to the identification device within the communication range;

The search object information sending module receives the activation information and sends the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device;

The search logic module sends the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module;

When receiving the unique identification code of the missing object, the position calculation module obtains the position information of the missing object according to the received position information and/or positioning information.

According to the method, the mobile tracking device and/or the server further comprises a drawing module and a display module, and the method further comprises:

The drawing module draws a route map from the position of the mobile tracking device to the position of the missing object according to the positioning information of the mobile tracking device and the position information of the missing object;

The display device displays the location information of the missing object and/or the route map.

According to the method, the mobile tracking device and/or server further comprises a search indication input module; the fixed tracking device further comprises a module query module, and the server further comprises a database;

Before the step of the searching instruction module receiving the instruction information for searching the missing object, the method includes:

Input the instruction information through the search instruction input module;

Before the step of sending the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module by the search logic module, the step includes:

After the fixed tracking device is started, the query module queries the database for the three-dimensional space coordinates of the fixed tracking device in the predetermined space, and sends the three-dimensional space coordinates to the search logic module.

According to the method, the fixed tracking device and/or the mobile tracking device further comprises a forwarding module, the mobile tracking device and/or the server further comprises a timing prompt module, and the step of sending the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device comprises:

When the forwarding module receives the unique identification code of the missing object, the forwarding module sends the unique identification code to the server;

The method further comprises:

The timing prompt module counts the time when the mobile tracking device and/or the server receives the unique identification code of the missing object, and when the time exceeds a preset time, resends the instruction information to the search logic module;

When the search logic module receives the instruction information resent by the search logic module, The corresponding communication range is adjusted, and activation information is sent to the identification device within the adjusted corresponding communication range.

According to the method described, the search logic module includes a command information receiving submodule, a command information parsing and sending submodule, and a fixed tracking device information sending submodule;

The steps of the search logic module instructing the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start according to the instruction information and sending activation information to the identification device within the communication range include:

The instruction information receiving submodule receives instruction information for finding the missing object sent by the searching instruction module;

The instruction information parsing and sending submodule parses the instruction information and sends start instruction information to the fixed tracking device and/or mobile tracking device within the communication range corresponding to the instruction information;

The fixed tracking device information sending submodule receives the three-dimensional space coordinates of the fixed tracking device in the predetermined space sent by the query module, and sends the three-dimensional space coordinates to the position calculation module; and sends activation information to the identification device within the communication range;

The positioning information sending submodule sends the positioning information of the mobile tracking device to the position calculation module; and sends activation information to the identification device within the communication range.

According to the method, the fixed tracking device and the mobile tracking device respectively communicate with the identification device at a short distance;

According to the method, the fixed tracking device is a base station; the mobile tracking device is a mobile terminal; the server is a server of the communication network;

The short-distance communication is Bluetooth communication.

According to the method, the seeking indication input module includes a keyboard and/or a mouse of the mobile tracking device and/or the server;

The missing object is an item or a person who needs care.

The present invention uses a search instruction module of a system for searching for missing objects to receive instruction information for searching for the missing object, and transmits the instruction information to a search logic module; the instruction information includes a tag. The search logic module instructs the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start according to the instruction information, and sends activation information to the identification device within the communication range, and sends the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module; the search object information sending module receives the activation information, and sends the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device; the position calculation module obtains the position information of the missing object according to the received position information and/or positioning information when receiving the unique identification code of the missing object. Thus, the staff of the tracking device of the mobile terminal can intensively go to the space where the identification device is most likely to be located. These increased number of tracking devices help to reduce the effective propagation range of the short-distance communication protocol when increasing the flow of people and logistics, and the mobile tracking device further expands its effective search space. Thus, the cost, limitation and capacity of the need to pre-install fixed tracking devices in the prior art are effectively supplemented. It is realized to search for missing objects in an environment with high flow of people, logistics and flow speed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a block diagram of a system for finding a missing object provided by an embodiment of the present invention;

FIG2 is a block diagram of a system for finding a missing object provided by an embodiment of the present invention;

FIG3 is a block diagram of a system for finding a missing object provided by an embodiment of the present invention;

FIG. 4 is a flow chart of a method for finding a missing object provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

1 and 2 , a system 100 for finding a missing object is provided in an embodiment of the present invention. The system 100 is used to find a missing object, and includes a plurality of fixed tracking devices 10, a plurality of mobile tracking devices 20, a plurality of identification devices 30, and a server 40. The system 100 includes:

The search instruction module 11 is provided in the mobile tracking device 20 and/or the server 40, and is used to receive instruction information for searching the missing object and transmit the instruction information to the search logic module 12; the instruction information includes a unique identification code for identifying the missing object;

The search logic module 12 is provided in the mobile tracking device 20 and/or the server 40, and is used to Instruction information, instructing the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range to start, and sending activation information to the identification device 30 within the communication range, and sending the current position information of the fixed tracking device 10 in the predetermined space and/or the positioning information of the mobile tracking device 20 to the position calculation module 14;

The object search information sending module 13 is provided in the identification device 30 and is used to receive the activation information and send the unique identification code of the missing object to the fixed tracking device 10 and/or the mobile tracking device 20;

The location calculation module 14 is provided in the mobile tracking device 20 and/or the server 40, and is used to obtain the location information of the missing object according to the received location information and/or positioning information when receiving the unique identification code of the missing object.

In this embodiment, in order to solve the technical problems existing in the prior art, multiple fixed tracking devices 10 and multiple mobile tracking devices 20 are combined into a tracking device. By setting multiple mobile tracking devices 20 in a predetermined space for searching for missing objects, it is possible to reduce the impact of dense mobile flow of people and objects blocking close-range communication due to dense mobile flow of people, which affects the search for missing objects. Specifically, the search instruction module 11 receives instruction information for searching for the missing object, and the instruction information includes a unique identification code that identifies the missing object; at the same time, according to different search requirements, it may also include a search range in the predetermined space. The corresponding search logic module 12 will instruct the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range to start according to the instruction information. For example, if the object to be searched is lost on the platform of a railway station, then the corresponding search range is the platform of the railway station and the hall of the railway station. These location ranges correspond to the corresponding communication ranges, and the activation information is sent to the identification device 30 within the communication range. Correspondingly, the identification device 30 set on the object to be searched will receive the activation information. Specifically, the object search information sending module 13 of the identification device 30 receives the activation information and sends the unique identification code of the missing object to the fixed tracking device 10 and/or the mobile tracking device 20. In addition, the search logic module 12 also sends the position information of the current fixed tracking device 10 in the predetermined space and/or the positioning information of the mobile tracking device 20 to the position calculation module 14; finally, when the position calculation module 14 receives the unique identification code of the missing object, it calculates the position information of the missing object according to the received position information and/or positioning information, and finally the specific position of the missing object in the predetermined space can be known.

It should be noted that for the sake of simplicity, multiple tracking devices, identification devices and servers are not shown in Figures 2 and 3. However, the devices in which the multiple modules shown in Figures 2 and 3 are arranged can be clearly known according to the description of this specification.

Referring to FIG. 1 to FIG. 3 , in one embodiment of the present invention, the system 100 further includes:

The drawing module 15 is arranged on the mobile tracking device 20 and/or the server 40, and is used to draw a route map from the position of the mobile tracking device 20 to the position of the missing object based on the positioning information and the position information of the missing object; after the position calculation module 14 calculates the position information of the missing object, the drawing module 15 can draw a route from the mobile tracking device 20 to the position of the missing object, or draw a route from the server 40 to the position of the missing object.

The display device 16 is provided on the mobile tracking device 20 and/or the server 40, and is used to display the location information of the missing object and/or the route map. The location information of the missing object, such as the three-dimensional spatial coordinates of the missing object in a predetermined space, can be displayed by the display device 16. The route map can also be displayed to prompt relevant personnel to find the missing object.

The search instruction input module 17 is provided in the mobile tracking device 20 and/or the server 40, and is used to input instruction information for searching for the missing object; the instruction information of the missing object to be searched can be input through the search instruction input module 17, and the instruction information includes the unique identification code of the missing object, and the desired search range, and the range can be represented by a specific three-dimensional space coordinate input. Of course, it can also be the numbering of multiple spatial ranges within a predetermined space that has been stored in advance. Preferably, the search instruction input module 17 includes the keyboard and/or mouse of the mobile tracking device 20 and/or the server 40;

The database 18 is provided on the server 40 and is used to store the device codes of the fixed tracking device 10 and the mobile tracking device 20, the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space, and the unique identification code of the missing object; wherein the device code of the fixed tracking device 10 corresponds to its three-dimensional spatial coordinates; the database 18 stores the properties and codes of multiple tracking devices. Such as the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space and the device code of the fixed tracking device 10, the device code of the mobile tracking device 20 can also be stored. Therefore, in subsequent inquiries, the three-dimensional spatial coordinates of the fixed tracking device 10 can be directly obtained by inputting its device code. The preferred three-dimensional spatial coordinates are Cartesian coordinates.

The query module 19 is provided in the fixed tracking device 10, and is used to query the three-dimensional space coordinates of the fixed tracking device 10 in the predetermined space in the database 18 after the fixed tracking device 10 is started, and send the three-dimensional space coordinates to the search logic module 12. The fixed tracking device 10 queries the three-dimensional space coordinates of the fixed tracking device 10 in the database 18 through its query module 19, and sends the information of the three-dimensional space coordinates to the search logic module 12.

The forwarding module 21 is arranged in the fixed tracking device 10 and/or the mobile tracking device 20, and is used to send the unique identification code to the server 40 when receiving the unique identification code of the missing object; the unique identification code of the missing object received by the fixed tracking device 10 and/or the mobile tracking device 20 is transmitted to the server 40 through the forwarding module 21, thereby allowing the server 40 to timely record the feedback information of the missing object that needs to be found, and allowing the management personnel to be informed of the missing object that needs to be found in time.

The timing prompt module 22 is set in the mobile tracking device 20 and/or the server 40, and is used to time the time of receiving the unique identification code of the missing object. When the time exceeds the preset time, the instruction information is resent to the search logic module 12. By setting the timing prompt module 22 in the mobile tracking device 20, the activation information can be sent again in time when the unique identification code of the missing object is not received, so as to improve the efficiency of the search. It is known that the search range is changed and the missing object is found in time.

1 to 3 , in one embodiment of the present invention, the search logic module 12 includes:

The instruction information receiving submodule 121 is arranged in the mobile tracking device 20 and/or the server 40, and is used to receive the instruction information for finding the missing object sent by the searching instruction module 11; the instruction information for finding the missing object sent by the searching instruction module 11 is received through the instruction information receiving submodule 121, and the instruction information includes an instruction for finding the spatial range of the missing object, and the spatial range can be represented by a code or by corresponding three-dimensional spatial coordinate information.

The instruction information parsing and sending submodule 122 is arranged in the mobile tracking device 20 and/or the server 40, and is used to parse the instruction information and send the start instruction information to the fixed tracking device 10 and/or the mobile tracking device 20 within the communication range corresponding to the instruction information; by parsing the instruction information by the instruction information parsing and sending submodule 122, the corresponding instruction information can be sent to the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range, instructing these devices to start up, so as to send activation information to the identification devices 30 around them.

The fixed tracking device information sending submodule 123 is arranged in the fixed tracking device 10, and is used to receive the three-dimensional space coordinates of the fixed tracking device 10 in the predetermined space sent by the query module 19, and send the three-dimensional space coordinates to the position calculation module 14; and send activation information to the identification device 30 within the communication range; for the three-dimensional space coordinates of the fixed tracking device 10 in the predetermined space, after being queried by the query module 19, the information of its three-dimensional space coordinates will be sent to the calculation module 14 through the fixed tracking device information sending submodule 123.

The positioning information sending submodule 124 is provided in the mobile tracking device 20 and is used to send the positioning information of the mobile tracking device 20 to the position calculation module 14; and to the identification device 30 within the communication range. Send activation information. The positioning information sending submodule 124 sends the positioning information of the mobile tracking device 20 to the position calculation module 14. The positioning information includes the GPS (Global Positioning System) positioning information of the mobile tracking device 20, which can be the GPS positioning of the mobile terminal indoors or outdoors. After the mobile tracking device 20 receives the unique identification code sent by the corresponding identification device 30, the position of the mobile tracking device 20 can be accurately located through GPS positioning, thereby calculating the position information of the missing object.

Referring to FIG. 1 to FIG. 3 , in one embodiment of the present invention, the fixed tracking device 10 and the mobile tracking device 20 respectively communicate with the identification device 30 over a short distance; the two devices communicate with each other through a short-distance communication protocol, and the short-distance communication protocol has an effective communication range, and the fixed tracking device 10 and the mobile tracking device 20 can send activation information to the adjacent identification device 30, and the identification device 30 can send a unique identification number to the adjacent fixed tracking device 10 and the mobile tracking device 20. The fixed tracking device 10 and the mobile tracking device 20 send activation information to the adjacent identification device 30 by short-distance communication, and the corresponding adjacent identification device 30 is connected to the server 40 communication network by short-distance communication. Preferably, the fixed tracking device 10 is a base station; the mobile tracking device 20 is a mobile terminal; the server 40 is a server 40 of the communication network; and the missing object is an item or a person who needs to be taken care of.

The identification device 30 is set on the missing object. If the missing object is an item, such as a bag, it is set in the bag. Of course, the settings of these identification devices 30 are pre-set in the bag to prevent the bag from being lost. If the missing object is a person who needs care, such as a 3-year-old child or an elderly person, a patient, etc., the identification device 30 can be placed in the pocket of his clothes. Preferably, the short-range communication is Bluetooth communication. The fixed tracking device 10 and the mobile tracking device 20 transmit and activate the identification device through the short-range communication transmitter device set therein, and the short-range communication receiving device receives and respectively sends the unique identification number issued by the identification device; the tracking device also forwards the received unique identification number to the server 40 by network communication. The server 40 is preferably a server of a long-range communication network, and the long-range communication network provides each tracking device with a communication function. And the server 40 can also include one or more servers, which can be used to store information of the system 100 for finding missing objects and support the operation of the system 100.

In addition, the three-dimensional space coordinates are Cartesian coordinates; the positioning information is the GPS positioning information of the mobile tracking device 20; the predetermined space includes places with dense traffic such as schools, hospitals, shopping malls, bus stations or train stations. Since items are easily lost in these places with dense traffic, the system 100 for finding missing objects can effectively find lost items or missing persons in the predetermined space. figure.

Referring to FIGS. 1 to 4 , in one embodiment of the present invention, a method for finding a missing object using any of the above-described systems 100 for finding a missing object is provided. The system 100 includes a plurality of fixed tracking devices 10, a plurality of mobile tracking devices 20, a plurality of identification devices 30, and a server 40. The mobile tracking devices 20 and/or the server 40 include a finding indication module 11, a finding logic module 12, and a position calculation module 14. The identification device 30 includes a finding object information sending module 13. The method includes:

In step S401, the search instruction module 11 receives instruction information for searching for the missing object and transmits the instruction information to the search logic module 12; the instruction information includes a unique identification code for identifying the missing object;

In step S402, the search logic module 12 instructs the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range to start according to the instruction information, and sends activation information to the identification device 30 within the communication range;

In step S403, the object search information sending module 13 receives the activation information and sends the unique identification code of the missing object to the fixed tracking device 10 and/or the mobile tracking device 20;

In step S404, the search logic module 12 sends the current position information of the fixed tracking device 10 in the predetermined space and/or the positioning information of the mobile tracking device 20 to the position calculation module 14;

In step S405 , upon receiving the unique identification code of the missing object, the location calculation module 14 acquires the location information of the missing object according to the received location information and/or positioning information.

In this embodiment, the search instruction module 11 receives the instruction information of searching for the missing object and transmits the instruction information to the search logic module 12; the search logic module 12 instructs the fixed tracking device 10 and/or the mobile tracking device 20 in the corresponding communication range to start according to the instruction information, and when these tracking devices are started, they will send activation information to the identification device 30 in the communication range. Preferably, in this embodiment, the fixed tracking device 10 and the mobile tracking device 20 communicate with the identification device 30 at a short distance respectively. The object search information sending module 13 arranged in the identification device 30 receives the activation information and sends the unique identification code of the missing object to the fixed tracking device 10 and/or the mobile tracking device 20; the search logic module 12 sends the position information of the current fixed tracking device 10 in the predetermined space and/or the positioning information of the mobile tracking device 20 to the position calculation module 14; wherein the position information of the fixed tracking device 10 in the predetermined space is preferably its three-dimensional space coordinate information in the predetermined space, such as Cartesian coordinates; the positioning information of the mobile tracking device 20 is the GPS positioning information of the mobile tracking device 20; thereby, the position of the mobile tracking device 20 can be accurately located indoors or outdoors through the GPS positioning information, so as to Therefore, when the location calculation module 14 receives the unique identification code of the missing object, the location information of the missing object is obtained according to the received location information and/or positioning information. Specifically, the predetermined space includes a school, a hospital, a shopping mall, a bus stop or a railway station; the missing object is an object or a person who needs care. This overcomes the problem in the prior art that it is difficult to find a missing object in a predetermined space with dense crowds such as a school, a hospital, a shopping mall, a bus stop or a railway station because of the blocking of close-range communication by dense moving people and objects.

In one embodiment of the present invention, the mobile tracking device 20 and/or the server 40 further includes a drawing module 15 and a display module, and the method further includes:

The drawing module 15 draws a route map from the position of the mobile tracking device 20 to the position of the missing object according to the positioning information of the mobile tracking device 20 and the position information of the missing object;

The display device 16 displays the location information of the missing object and/or the route map.

In this embodiment, after the position calculation module 14 calculates the position information of the missing object, the drawing module 15 can draw a route from the mobile tracking device 20 to the position of the missing object, or draw a route from the server 40 to the position of the missing object. In addition, the position information of the missing object, such as the three-dimensional spatial coordinates of the missing object in a predetermined space, can be displayed by the display device 16. The route map can also be displayed to prompt relevant personnel to find the missing object, thereby helping relevant managers to quickly find the missing object.

In one embodiment of the present invention, the mobile tracking device 20 and/or the server 40 further comprises a search indication input module 17; the fixed tracking device 10 further comprises a module query module 19, and the server 40 further comprises a database 18;

Before the step of the searching instruction module 11 receiving the instruction information for searching the missing object, the following steps are included:

Input the instruction information through the search instruction input module 17;

Before the step of the search logic module 12 sending the current position information of the fixed tracking device 10 in the predetermined space and/or the positioning information of the mobile tracking device 20 to the position calculation module 14, the following steps are included:

After the fixed tracking device 10 is started, the query module 19 queries the database 18 for the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space, and sends the three-dimensional spatial coordinates to the search logic module 12 .

In this embodiment, the search instruction input module 17 is provided in the mobile tracking device 20 and/or the server 40, and is used to input instruction information for searching for the missing object; The command information of the missing object to be searched can be input, and the command information includes the unique identification code of the missing object and the desired search range. Preferably, the search instruction input module 17 includes the keyboard and/or mouse of the mobile tracking device 20 and/or the server 40;

The database 18 is set in the server 40, and is used to store the device codes of the fixed tracking device 10 and the mobile tracking device 20, the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space, and the unique identification code of the missing object; wherein the device code of the fixed tracking device 10 corresponds to its three-dimensional spatial coordinates; the database 18 stores the properties and codes of multiple tracking devices. After the fixed tracking device 10 is started, the query module 19 queries the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space in the database 18, and sends the three-dimensional spatial coordinates to the search logic module 12. The fixed tracking device 10 queries the three-dimensional spatial coordinates of the fixed tracking device 10 in the database 18 through its query module 19, and sends the information of the three-dimensional spatial coordinates to the search logic module 12.

In one embodiment of the present invention, the fixed tracking device 10 and/or the mobile tracking device 20 further includes a forwarding module 21, and the mobile tracking device 20 and/or the server 40 further includes a timing prompt module 22. The step of sending the unique identification code of the missing object to the fixed tracking device 10 and/or the mobile tracking device 20 includes:

When receiving the unique identification code of the missing object, the forwarding module 21 sends the unique identification code to the server 40;

The method further comprises:

The timing prompt module 22 counts the time when the mobile tracking device 20 and/or the server 40 receives the unique identification code of the missing object, and resends the instruction information to the search logic module 12 when the time exceeds a preset time;

When the seeking logic module 12 receives the instruction information resent by the seeking logic module 12 , it adjusts the corresponding communication range and sends activation information to the identification device 30 within the adjusted corresponding communication range.

In this embodiment, the forwarding module 21 transmits the unique identification code of the missing object received by the fixed tracking device 10 and/or the mobile tracking device 20 to the server 40, so that the server 40 can timely record the feedback information of the missing object to be found, and let the management personnel know the missing object to be found in time. The timing reminder module 22 set in the mobile tracking device 20 can timely send the activation information again when the unique identification code of the missing object is not received, so as to improve the efficiency of the search. The knowledge is to change the search range and find the missing object in time.

In one embodiment of the present invention, the search logic module 12 includes a command information receiving submodule 121, a command information parsing and sending submodule 122, and a fixed tracking device information sending submodule 123;

The steps of the search logic module 12 instructing the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range to start according to the instruction information and sending activation information to the identification device 30 within the communication range include:

The instruction information receiving submodule 121 receives instruction information for finding the missing object sent by the searching instruction module 11;

The instruction information parsing and sending submodule 122 parses the instruction information and sends a start instruction message to the fixed tracking device 10 and/or the mobile tracking device 20 within the communication range corresponding to the instruction information;

The fixed tracking device information sending submodule 123 receives the three-dimensional space coordinates of the fixed tracking device 10 in the predetermined space sent by the query module 19, and sends the three-dimensional space coordinates to the position calculation module 14; and sends activation information to the identification device 30 within the communication range;

The positioning information sending submodule 124 sends the positioning information of the mobile tracking device 20 to the position calculation module 14; and sends activation information to the identification device 30 within the communication range.

In this implementation, the instruction information receiving submodule 121 receives the instruction information for searching the missing object sent by the searching instruction module 11, and the instruction information includes the spatial range for searching the missing object, which can be represented by a code or the corresponding three-dimensional spatial coordinate information. The instruction information parsing and sending submodule 122 parses the instruction information, and can send the corresponding instruction information to the fixed tracking device 10 and/or the mobile tracking device 20 within the corresponding communication range, instructing these tracking devices to start up, so as to send activation information to the identification devices 30 around them. After the three-dimensional spatial coordinates of the fixed tracking device 10 in the predetermined space are queried by the query module 19, the three-dimensional spatial coordinates of the fixed tracking device 10 are sent to the calculation module 14 through the fixed tracking device information sending submodule 123. The positioning information sending submodule 124 sends the positioning information of the mobile tracking device 20 to the position calculation module 14, so that the calculation module 14 can calculate the position information of the missing object.

Preferably, the fixed tracking device 10 and the mobile tracking device 20 are respectively connected to the server 40 communication network. The fixed tracking device 10 is a base station; the mobile tracking device 20 is a mobile terminal; by setting a mobile mobile terminal as the mobile tracking device 20, the missing object can be better found. The server 40 is a server 40 of the communication network; and the short-range communication is Bluetooth communication.

In one embodiment of the present invention, the method for finding a lost object includes:

1. The search instruction input module 17 starts searching for a unique identification number;

2. The search instruction module 11 receives the corresponding instruction information for searching for the missing object, and the search logic module 12 further indicates the initial search space of the object represented by the unique identification number according to the content of the instruction information, that is, the search range within the predetermined space.

3. The search logic module 12 sends an activation instruction to some or all tracking devices, such as fixed base stations and mobile smart phone tracking devices;

In one embodiment, the scene is an intermodal station, and the identification device to be found is a wheelchair passenger who has just entered the station by train. In order to improve efficiency, the search logic module 12 only sends activation instructions to the fixed base stations and mobile smart phone tracking devices located on the platform and adjacent hall of the incoming train.

4. The tracking device that receives the activation instruction, including the fixed tracking device 10 and/or the mobile tracking device 20, sends an activation message to the identification device within its effective communication range;

5. The identification device 30 receives the activation information and sends out its unique identification number;

6. If one or more tracking devices receive the unique identification number to be searched, the unique identification number and the tracking device code of the tracking device are transmitted to the search logic module 12. If the tracking device is a mobile smart phone, the real-time location is calculated by the built-in device of the mobile smart phone and sent to the search logic module in Cartesian coordinates;

7. The search logic module 12 receives one or more tracking device codes corresponding to the unique identification number to be searched, and the position coordinates of each tracking device code. When the tracking device is a fixed base station, it is obtained from the tracking device database 18, and when it is a mobile terminal, it is calculated from the received real-time position, and the more accurate real-time position of the identification device 30 is calculated by the preset logic; thereby obtaining the position of the missing object.

8. The search logic module 12 provides the real-time location of the identification device 30 to the source of the instruction. When the source of the instruction is one of the mobile terminals, the real-time location is displayed on the display screen of the mobile terminal.

Furthermore, a route map may be drawn based on the position in space from the current tracking device of the mobile terminal to the position of the unique identification device.

9. If the unique identification number cannot be received in step 6, that is, the tracking device in the initial search space in step 2 cannot effectively send activation information to the identification device that needs to be activated, the search logic expands the search range and repeats steps 3 to 6. Furthermore, if the expansion is unsuccessful, it can be expanded to use all tracking devices to activate and receive messages. If the unique identification number is still not received within the preset time, the search instruction source is returned.

Furthermore, in step 8 of the above method, the identification device 30 may still be moving, and the mobile terminal in the tracking device repeats step 7 to receive the latest unique identification number, tracking device code, tracking device location and calculate the latest real-time location of the identification device in real time, and repeats step 8 to display the real-time drawn location of the identification device 30. The mobile terminal as a tracking device can form a framework for calculating the location of indoor objects with a fixed base station type tracking device in the scene, including using the Zeelo positioning system to calculate the accurate real-time location of the mobile terminal.

In one embodiment of the present invention, in order to enhance efficiency, the staff holding the tracking device of the mobile terminal in the application scene of the system 100 can go to the space where the identification device 30 is most likely to be located. The increased number of tracking devices helps to reduce the effective propagation range of the short-range communication protocol when the flow of people and goods increases, and the mobile tracking device further expands its effective search space. Therefore, the cost, limitation and capacity of the prior art that requires the pre-installation of fixed tracking devices are effectively supplemented.

In summary, the present invention uses the search instruction module of the system for searching for missing objects to receive the instruction information for searching for the missing object, and transmits the instruction information to the search logic module; the instruction information includes a unique identification code for identifying the missing object; the search logic module instructs the fixed tracking device and/or the mobile tracking device in the corresponding communication range to start according to the instruction information, and sends activation information to the identification device in the communication range, and sends the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module; the search object information sending module receives the activation information, and sends the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device; when the position calculation module receives the unique identification code of the missing object, it obtains the position information of the missing object according to the received position information and/or positioning information. As a result, the staff of the tracking device of the mobile terminal can intensively go to the space where the identification device is most likely to be located. These increased number of tracking devices help to reduce the effective propagation range of the short-range communication protocol when increasing the flow of people and logistics, and the mobile tracking device further expands its effective search space. Therefore, the cost, limitation and capacity of the prior art that requires the installation of fixed tracking devices in advance are effectively supplemented, and the missing object can be found in an environment with high flow of people, logistics and flow speed.

Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

A system for finding a missing object, for finding a missing object, comprises a plurality of fixed tracking devices, a plurality of mobile tracking devices, a plurality of identification devices and a server, wherein the system comprises:

a search instruction module, arranged in the mobile tracking device and/or the server, for receiving instruction information for searching the missing object and transmitting the instruction information to the search logic module; the instruction information includes a unique identification code for identifying the missing object;

a search logic module, arranged in the mobile tracking device and/or the server, for instructing the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start according to the instruction information, and sending activation information to the identification device within the communication range, and sending the current position information of the fixed tracking device within the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module;

a search object information sending module, arranged in the identification device, for receiving the activation information and sending the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device;

The location calculation module is arranged in the mobile tracking device and/or the server, and is used to obtain the location information of the missing object according to the received location information and/or positioning information when receiving the unique identification code of the missing object.
The system according to claim 1, characterized in that the system further comprises:

A drawing module, provided on the mobile tracking device and/or the server, for drawing a route map from the position of the mobile tracking device to the position of the missing object according to the positioning information and the position information of the missing object;

A display device is provided on the mobile tracking device and/or the server, and is used to display the location information of the missing object and/or the route map.
The system according to claim 1, characterized in that the system further comprises:

A search instruction input module, provided in the mobile tracking device and/or the server, for inputting instruction information for searching for the missing object;

a database, arranged on the server, for storing device codes of the fixed tracking device and the mobile tracking device, the three-dimensional spatial coordinates of the fixed tracking device in the predetermined space, and the unique identification code of the missing object; wherein the device code of the fixed tracking device corresponds to its three-dimensional spatial coordinates;

A query module is provided in the fixed tracking device, and is used to query the three-dimensional space coordinates of the fixed tracking device in the predetermined space in the database after the fixed tracking device is started, and The three-dimensional space coordinates are sent to the search logic module.
The system according to claim 3, characterized in that the system further comprises:

a forwarding module, provided in the fixed tracking device and/or the mobile tracking device, for sending the unique identification code to the server upon receiving the unique identification code of the missing object;

A timing prompt module is provided in the mobile tracking device and/or the server, and is used to time the time of receiving the unique identification code of the missing object, and resend the instruction information to the search logic module when the time exceeds a preset time.
The system according to claim 3, characterized in that the search logic module comprises:

An instruction information receiving submodule, which is arranged in the mobile tracking device and/or the server, and is used to receive instruction information for finding the missing object sent by the finding instruction module;

An instruction information parsing and sending submodule, which is arranged in the mobile tracking device and/or the server, and is used to parse the instruction information and send a start instruction information to the fixed tracking device and/or the mobile tracking device within the communication range corresponding to the instruction information;

a fixed tracking device information sending submodule, arranged in the fixed tracking device, for receiving the three-dimensional spatial coordinates of the fixed tracking device in the predetermined space sent by the query module, and sending the three-dimensional spatial coordinates to the position calculation module; and sending activation information to the identification device within the communication range;

The positioning information sending submodule is arranged in the mobile tracking device, and is used to send the positioning information of the mobile tracking device to the position calculation module; and send activation information to the identification device within the communication range.
The system according to claim 1, characterized in that the fixed tracking device and the mobile tracking device respectively communicate with the identification device at a short distance;

The fixed tracking device and the mobile tracking device are respectively connected to the server communication network.
The system according to claim 6, characterized in that the fixed tracking device is a base station; the mobile tracking device is a mobile terminal; the server is a server of the communication network; the identification device is arranged on the missing object;

The short-distance communication is Bluetooth communication.
The system according to claim 3, characterized in that the seeking instruction input module comprises a keyboard and/or a mouse of the mobile tracking device and/or the server;

The three-dimensional space coordinates are Cartesian coordinates; the positioning information is the positioning information of the mobile tracking device GPS location information;

The predetermined space includes a school, hospital, shopping mall, bus station or railway station;

The missing object is an item or a person who needs care.
A method for finding a missing object using the system for finding a missing object according to any one of claims 1 to 8, the system comprising a plurality of fixed tracking devices, a plurality of mobile tracking devices, a plurality of identification devices and a server, wherein the mobile tracking devices and/or the server comprise a search indication module, a search logic module and a position calculation module, the identification device comprises a search object information sending module, and the method comprises:

The search instruction module receives instruction information for searching the missing object and transmits the instruction information to the search logic module; the instruction information includes a unique identification code for identifying the missing object;

The search logic module instructs the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start up according to the instruction information, and sends activation information to the identification device within the communication range;

The search object information sending module receives the activation information and sends the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device;

The search logic module sends the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module;

When receiving the unique identification code of the missing object, the position calculation module obtains the position information of the missing object according to the received position information and/or positioning information.
The method according to claim 9, characterized in that the mobile tracking device and/or the server further comprises a drawing module and a display module, and the method further comprises:

The drawing module draws a route map from the position of the mobile tracking device to the position of the missing object according to the positioning information of the mobile tracking device and the position information of the missing object;

The display device displays the location information of the missing object and/or the route map.
The method according to claim 8, characterized in that the mobile tracking device and/or the server further comprises a search indication input module; the fixed tracking device further comprises a module query module, and the server further comprises a database;

Before the step of the searching instruction module receiving the instruction information for searching the missing object, the method includes:

Input the instruction information through the search instruction input module;

Before the step of sending the current position information of the fixed tracking device in the predetermined space and/or the positioning information of the mobile tracking device to the position calculation module by the search logic module, the step includes:

After the fixed tracking device is started, the query module queries the database for the three-dimensional space coordinates of the fixed tracking device in the predetermined space, and sends the three-dimensional space coordinates to the search logic module.
The method according to claim 10 is characterized in that the fixed tracking device and/or the mobile tracking device further comprises a forwarding module, the mobile tracking device and/or the server further comprises a timing prompt module, and the step of sending the unique identification code of the missing object to the fixed tracking device and/or the mobile tracking device comprises:

When the forwarding module receives the unique identification code of the missing object, the forwarding module sends the unique identification code to the server;

The method further comprises:

The timing prompt module counts the time when the mobile tracking device and/or the server receives the unique identification code of the missing object, and when the time exceeds a preset time, resends the instruction information to the search logic module;

When the seeking logic module receives the instruction information resent by the seeking logic module, the seeking logic module adjusts the corresponding communication range and sends activation information to the identification device within the adjusted corresponding communication range.
The method according to claim 11, characterized in that the search logic module includes a command information receiving submodule, a command information parsing and sending submodule, and a fixed tracking device information sending submodule;

The steps of the search logic module instructing the fixed tracking device and/or the mobile tracking device within the corresponding communication range to start according to the instruction information and sending activation information to the identification device within the communication range include:

The instruction information receiving submodule receives instruction information for finding the missing object sent by the searching instruction module;

The instruction information parsing and sending submodule parses the instruction information and sends start instruction information to the fixed tracking device and/or mobile tracking device within the communication range corresponding to the instruction information;

The fixed tracking device information sending submodule receives the three-dimensional space coordinates of the fixed tracking device in the predetermined space sent by the query module, and sends the three-dimensional space coordinates to the position calculation module; and sends activation information to the identification device within the communication range;

The positioning information sending submodule sends the positioning information of the mobile tracking device to the position calculation module; and sends activation information to the identification device within the communication range.
The method according to claim 9, characterized in that the fixed tracking device and the mobile tracking device respectively communicate with the identification device at a short distance;

The fixed tracking device and the mobile tracking device are respectively connected to the server communication network.
The method according to claim 14, characterized in that the fixed tracking device is a base station; the mobile tracking device is a mobile terminal; the server is a server of the communication network;

The short-distance communication is Bluetooth communication.
The method according to claim 11, characterized in that the seeking indication input module comprises a keyboard and/or a mouse of the mobile tracking device and/or the server;

The three-dimensional space coordinates are Cartesian coordinates; the positioning information is the GPS positioning information of the mobile tracking device;

The predetermined space includes a school, hospital, shopping mall, bus station or railway station;

The missing object is an item or a person who needs care.