Laboratory equipment tracking system based on RFID and Bluetooth

Abstract

The invention belongs to the technical field of laboratory equipment management, and provides a laboratory equipment tracking system based on RFID and Bluetooth, an RFID reader-writer and a Bluetooth receiver are respectively arranged in a laboratory, and each piece of equipment in the laboratory is equipped with an RFID tag or a Bluetooth tag; and the central management module is configured to collect and process data from the RFID reader-writer and the Bluetooth receiver, and calculate the real-time position of each device in the laboratory according to the signal intensity and the position of the reader-writer or the receiver. The laboratory equipment management system has the advantages that real-time positioning, management and monitoring of the laboratory equipment are realized through hardware arrangement, system integration and data management, the management efficiency of the laboratory equipment can be effectively improved, and the risks of equipment loss and use management are reduced.

Description

Technical Field

[0001] The present invention relates to the field of laboratory equipment management, and in particular to a laboratory equipment tracking system based on RFID and Bluetooth. Background Art

[0002] There are many types of equipment in modern laboratories, and they are often moved or loaned out. Traditional manual management methods often fail to meet the needs of efficient management and real-time tracking. Problems such as unknown equipment location, incomplete loan records, and equipment loss frequently occur, affecting the efficiency of laboratory operations and the smooth progress of scientific research. Therefore, it is particularly urgent to develop a system that can monitor and locate laboratory equipment in real time.

[0003] RFID (Radio Frequency Identification) technology and Bluetooth technology have been widely used in the fields of Internet of Things, asset management, etc. RFID technology has the characteristics of non-contact and efficient reading, while Bluetooth technology, especially Bluetooth Low Energy (BLE) technology, has won wide recognition for its advantages of low power consumption and long-distance communication. Based on these technologies, the present invention proposes an efficient laboratory equipment tracking system, which aims to solve the current problems in laboratory equipment management and realize real-time positioning and efficient management of equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a laboratory equipment tracking system based on RFID and Bluetooth technology, which can improve equipment management efficiency, reduce the risk of equipment loss and misuse, and ultimately improve the laboratory's operating efficiency and scientific research results through real-time positioning and data management of laboratory equipment.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A laboratory equipment tracking system based on RFID and Bluetooth, in which RFID readers and Bluetooth receivers are arranged in the laboratory, and RFID tags or Bluetooth tags are equipped on each laboratory equipment; and

[0007] The central management module is configured to collect and process data from RFID readers and Bluetooth receivers, and calculate the real-time location of each laboratory equipment based on the signal strength and the location of the reader or receiver.

[0008] Furthermore, RFID readers are installed on the walls and ceiling of the laboratory so that the coverage area of ​​the RFID readers includes all spaces in the laboratory, and the coverage areas of the RFID readers are guaranteed to overlap.

[0009] Furthermore, the Bluetooth receivers are arranged at a preset distance in the laboratory to ensure that the signal coverage areas between the Bluetooth receivers overlap.

[0010] Furthermore, the central management module is configured to calculate the real-time location of each laboratory device based on the conversion relationship between the signal strength of the tag and the distance.

[0011] Furthermore, the step of obtaining the conversion relationship between the signal strength and the distance of the tag includes:

[0012] Arrange the receivers in a triangle on the ceiling or wall of the laboratory, and make the signal coverage of the receivers a semicircle;

[0013] A calibration tag is placed on any test bench in the laboratory. By acquiring the signal strength of the calibration tag and the distance between the receiver and the calibration tag, the conversion relationship between the signal strength and the distance is obtained.

[0014] Furthermore, a server is configured in the central management module, and the real-time location of each device in the laboratory is stored in the server, so that the user can obtain the real-time location of the device when accessing the server.

[0015] Furthermore, the central management module is configured to generate a movement trajectory of the device based on the real-time location of the device, and automatically record the movement path and time of the device when the device leaves or enters the laboratory to form the borrowing or returning information of the device.

[0016] Furthermore, the system also includes a screen display, which is used to display a three-dimensional view of the laboratory. The central management module marks the real-time location of the equipment in the three-dimensional view based on the equipment data stored in the server, and displays it on the screen display.

[0017] Furthermore, the central management module is configured to configure a corresponding preset area for each device in the laboratory, and automatically trigger an alarm signal when the device moves abnormally or leaves the preset area.

[0018] Furthermore, the central management module is configured to regularly generate a device usage statistics report based on the real-time location and movement trajectory of the device to display a location heat map, frequency, and usage time of the device.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] This paper proposes a laboratory equipment tracking system based on RFID and low-power Bluetooth technology, which realizes real-time positioning, management and monitoring of laboratory equipment through hardware layout, system integration and data management. The system has the advantages of high precision, low power consumption and strong real-time performance, which can effectively improve the efficiency of laboratory equipment management, reduce the risk of equipment loss and use management, and is suitable for various equipment management needs of modern laboratories. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a schematic diagram of the framework of the laboratory equipment tracking system provided in this embodiment;

[0023] Figure 2 It is a schematic diagram of the conversion relationship between the signal strength and distance of the tag provided in this embodiment. DETAILED DESCRIPTION

[0024] It should be noted that in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0027] like Figure 1 As shown, this embodiment provides a laboratory equipment tracking system, including the following modules:

[0028] Equipment tag module, each laboratory equipment is equipped with a passive RFID tag with a unique ID to indicate the identity of the equipment. At the same time, each device can also be equipped with a low-power Bluetooth tag, which regularly broadcasts its corresponding ID and related information. Of course, you can also choose an RFID tag or a Bluetooth tag for the device to indicate the identity of the device.

[0029] The receiver module includes an RFID reader and a Bluetooth receiver. An RFID reader is arranged every 5 meters in the laboratory to ensure coverage of the entire laboratory space, and a Bluetooth receiver is arranged every 5 meters in the laboratory to receive the broadcast signals of low-power Bluetooth tags.

[0030] Each reader can read the ID of the RFID tag within its range and send it to the central management system. By measuring the received signal strength (RSSI), the Bluetooth receiver can send the information of the device tag to the central management system.

[0031] The central management module is responsible for collecting and processing data information from RFID readers and Bluetooth receivers, thereby calculating the real-time location of the equipment in the laboratory based on the signal strength and receiver location.

[0032] The central management module is equipped with a server, and the real-time location of each device in the laboratory is stored in the server so that users can obtain the real-time location of the device when accessing the server.

[0033] Therefore, RFID tags or Bluetooth tags are attached to laboratory equipment. RFID tags are passive tags. Since passive tags do not have a built-in power supply, in order to avoid battery life problems, they rely on the electromagnetic waves emitted by the RFID reader to obtain energy, and then send the stored information back to the reader. Bluetooth tags use low-power Bluetooth modules to increase their battery life.

[0034] The server controls the RFID reader or Bluetooth receiver through the local area network, reads the tag information on the device at regular intervals, calculates the location of the device, and then records it. Users can access the server through the Web to obtain the real-time location of all laboratory equipment.

[0035] In the laboratory, RFID readers are installed on the ceiling, walls, and other locations of the laboratory to ensure that the coverage areas between readers overlap to a certain extent to avoid signal blind spots. The Bluetooth receiver is also configured with the corresponding frequency and power to obtain the best coverage effect.

[0036] The central management system processes the data obtained from the RFID reader and Bluetooth receiver through multi-point positioning algorithm technology to calculate the real-time location of the device.

[0037] like Figure 2 As shown, the central management module is configured to calculate the real-time location of each laboratory device based on the conversion relationship between the signal strength of the tag and the distance.

[0038] The step of obtaining the conversion relationship between the signal strength and the distance of the tag includes:

[0039] S1. Arrange the receivers in a triangular manner on the ceiling or wall of the laboratory, and make the signal coverage of the receivers semicircular;

[0040] S2. A calibration tag is placed on any test bench in the laboratory. The signal strength of the calibration tag is obtained, and the conversion relationship between the signal strength and the distance is obtained according to the distance between the receiver and the calibration tag.

[0041] The receivers are arranged in a triangle on the ceiling, and the calibration tags are arranged on the test bench. The receivers are designed to adjust the direction and coverage of the signal. At the same time, the coverage of the receiver is designed to be semicircular. By obtaining the signal strength (RSSI) of the calibration tag, the conversion relationship between the signal strength and the distance can be obtained based on the known distance between the receiver and the calibration tag. Therefore, the signal strength of the experimental equipment received by each receiver is first obtained through the three-point positioning method, and then converted into distance according to the conversion relationship to obtain the accurate position of the experimental equipment tag.

[0042] At the same time, the central management module tracks the location of each device in real time, and users can query specific devices through the interface configured by the central management module. Users can enter the device ID or name in the interface to search for the current location of the device, and the interface highlights the real-time location of the device.

[0043] The central management module can also automatically record the borrowing and returning information of the equipment and generate detailed equipment track records. When the equipment leaves the laboratory or enters a new experimental area, the system automatically records the moving path and time of the equipment without manual registration. Users can query the equipment's usage records, borrowing time, and return time through the historical track function, showing the location changes of the equipment at different time points.

[0044] The system also includes a screen display, which is used to display the three-dimensional view of the laboratory. The screen display is set up in the laboratory center or management office to display the distribution of all equipment in the laboratory in real time. The screen display obtains the latest equipment location data through the central management system, uses the laboratory floor plan or map as the background, and marks the real-time location of the equipment in the three-dimensional view, intuitively displaying the real-time location of the equipment.

[0045] A 3D view is provided in the interface configured in the central management module to show the three-dimensional position of the equipment in the laboratory. The 3D view supports rotation, scaling and movement, and users can view the distribution of equipment from different angles, which is particularly suitable for multi-story laboratories or complex environments.

[0046] In addition, the central management module can regularly generate equipment usage statistics reports, analyze equipment usage frequency, loan status and movement trajectory, and help managers optimize equipment scheduling and maintenance plans. The report includes equipment usage heat map, frequency analysis, usage time statistics, etc., and displays the equipment usage in a visual way.

[0047] The central management module can also set the management area and behavior rules of the equipment. When the equipment moves abnormally or leaves the preset area, an alarm is automatically triggered. The alarm information is notified to the management personnel through the screen display, SMS or email, so that abnormal situations can be handled in time to prevent the loss or misuse of the equipment.

[0048] The laboratory equipment tracking system provided in this embodiment realizes real-time positioning, management and monitoring of laboratory equipment through hardware layout, system integration and data management. The system has the advantages of high precision, low power consumption and strong real-time performance, which can effectively improve the efficiency of laboratory equipment management and reduce the risk of equipment loss and use management.

[0049] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A laboratory equipment tracking system based on RFID and Bluetooth, characterized in that: RFID readers and Bluetooth receivers are arranged in the laboratory, and RFID tags or Bluetooth tags are installed on various equipment in the laboratory; and The central management module is configured to collect and process data from RFID readers and Bluetooth receivers, and calculate the real-time location of each laboratory equipment based on the signal strength and the location of the reader or receiver.

2. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 1, characterized in that: The RFID readers are installed on the walls and ceiling of the laboratory so that the coverage area of ​​the RFID readers includes all spaces in the laboratory, and the coverage areas of the RFID readers are guaranteed to overlap.

3. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 1, characterized in that: The Bluetooth receivers are arranged in the laboratory at a preset distance so that the signal coverage areas of the Bluetooth receivers are guaranteed to overlap.

4. A laboratory equipment tracking system based on RFID and Bluetooth according to claim 2 or 3, characterized in that: The central management module is configured to calculate the real-time location of each laboratory device based on the conversion relationship between the signal strength and distance of the tag.

5. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 4, characterized in that: The steps of obtaining the conversion relationship between the signal strength and the distance of the tag include: The receivers are arranged in a triangular manner on the ceiling or wall of the laboratory, and the signal coverage of the receivers is a semicircle; A calibration tag is placed on any test bench in the laboratory. By acquiring the signal strength of the calibration tag and the distance between the receiver and the calibration tag, the conversion relationship between the signal strength and the distance is obtained.

6. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 1, characterized in that: The central management module is configured with a server, and the real-time location of each device in the laboratory is stored in the server, so that the user can obtain the real-time location of the device when accessing the server.

7. The RFID and Bluetooth-based laboratory equipment tracking system according to claim 6, characterized in that: The central management module is configured to generate a movement trajectory of the device based on the real-time location of the device, and automatically record the movement path and time of the device when the device leaves or enters the laboratory to form the borrowing or returning information of the device.

8. The RFID and Bluetooth-based laboratory equipment tracking system according to claim 6, characterized in that: The system also includes a screen display, which is used to display a three-dimensional view of the laboratory. The central management module marks the real-time location of the equipment in the three-dimensional view based on the equipment data stored in the server, and displays it on the screen display.

9. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 1, characterized in that: The central management module is configured to configure corresponding preset areas for each device in the laboratory, and automatically trigger an alarm signal when the device moves abnormally or leaves the preset area.

10. The laboratory equipment tracking system based on RFID and Bluetooth according to claim 1, characterized in that: The central management module is configured to regularly generate a device usage statistics report based on the real-time location and movement trajectory of the device to display a location heat map, frequency and usage time of the device.

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