CN217904660U

CN217904660U - Bluetooth asset locator based on LORAWAN and NFC communication

Info

Publication number: CN217904660U
Application number: CN202220056090.6U
Authority: CN
Inventors: 蔡仁文; 章玺; 毛庭
Original assignee: Zhejiang Lierda Internet Of Things Technology Co ltd
Current assignee: Zhejiang Lierda Internet Of Things Technology Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-11-25
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a Bluetooth asset locator based on LORAWAN and NFC communication; the Bluetooth module collects specific Bluetooth Ibeacon information in the air and analyzes a mail and a minor; after the LoRaWAN is activated for network access, the LoRaWAN completes registration binding of equipment and reports positioning data, alarm data and heartbeat data; the three-axis motion sensor senses whether the equipment moves or not and is used for controlling the frequency of the reporting of the positioning data; and carrying out configuration, reading, operation, upgrading and debugging through NFC. The power is reduced, the device can be operated and used by adopting a 3V battery, and once the device is activated, the device can be automatically recovered even if the network is disconnected without human intervention. Simultaneously can carry out hardware error self-checking, report to the server in real time, reduce the maintenance cost, prevent tearing open the warning simultaneously through light sense sensor module. Combine NFC + bluetooth beacon + LoRaWAN to constitute a system, carry out wireless operation activation through the NFC technique, upload bluetooth beacon locating data packing through LoRaWAN to realize the high in the clouds and track the management asset.

Description

Bluetooth asset locator based on LORAWAN and NFC communication

Technical Field

The utility model relates to a locator technical field especially relates to a bluetooth asset locator based on LORAWAN and NFC communication.

Background

With the improvement of the physical life of people, the fixed assets of people are more and more, and the safety problem of the fixed assets is more and more serious due to the activities of many lawless persons in the society, at the moment, a positioner is a good choice, is an instrument with a positioning function and is provided with a GPS positioning chip inside, and is widely applied to the technical fields of safety guarantee, facility supervision and the like; the existing locator has certain disadvantages when in use. Some handsets that do not support NFC functionality cannot be configured and used. Meanwhile, the locator is small in size, so that the communication distance of the LORAWAN antenna is insufficient. The traditional locator adopts the Bluetooth beacon positioning mode, the precision is only 3 to 5m, the asset locator installed on the fixed asset is very easy to take away by people, and if the asset locator cannot be early warned in time when being taken away by people due to human damage, the effect of asset positioning protection is lost.

For example, a "fixed asset locator" disclosed in chinese patent literature, publication No. CN213462606U includes a locator body, a waterproof layer is fixedly mounted on the inner wall surface of the locator body, a control main board is fixedly mounted inside the locator body, a transparent protective cover plate is embedded in the front surface of the locator body, and a rubber wrapping post is fixedly mounted on the central position of the back surface of the locator body. This application a fixed asset locator, the operating duration that can prolong the locator can adapt to various environment through triple transmission mode, accurate transmission locating information, convenience of customers looks over and withdraws, the life of extension locator can prevent simultaneously that the data line from twining and knoing, makes things convenient for personnel to use. However, the asset locator still has a mobile phone with short communication distance and does not support the NFC function to match the asset locator when in use.

Disclosure of Invention

The utility model provides a bluetooth asset locator based on LORAWAN and NFC communication to the above-mentioned problem; the Bluetooth module collects specific Bluetooth Ibeacon information in the air and analyzes a main and a minor; after the LoRaWAN is activated for network access, the LoRaWAN completes registration binding of equipment and reports positioning data, alarm data and heartbeat data; the three-axis motion sensor senses whether the equipment moves or not and is used for controlling the frequency of the reporting of the positioning data; and carrying out configuration, reading, operation, upgrading and debugging through NFC. The power is reduced, the device can be operated and used by adopting a 3V battery, and once the device is activated, the device can be automatically recovered even if the network is disconnected without human intervention. Simultaneously can carry out hardware error self-checking, report to the server in real time, reduce the maintenance cost, prevent tearing open the warning simultaneously through light sense sensor module. Combine NFC + bluetooth beacon + LoRaWAN to constitute a system, carry out wireless operation activation through the NFC technique, upload bluetooth beacon locating data packing through LoRaWAN to realize the high in the clouds and track the management asset.

The above technical problem of the present invention can be solved by the following technical solutions:

a Bluetooth asset locator based on LORAWAN and NFC communication comprises an NFC antenna module, a master control Bluetooth module, a light-sensitive sensor module, a three-color LED, a three-axis sensor module, a LoRaWAN antenna and a lithium battery, wherein the master control Bluetooth module is connected with the light-sensitive sensor module through the three-color LED; the lithium battery supplies power to the master control Bluetooth module; the master control Bluetooth module is in interactive connection with the LoRaWAN module; the master control Bluetooth module is respectively connected with the light sensor, the three-axis sensor and the NFC antenna; loRaWAN module connection LoRaWAN antenna. The Bluetooth module collects specific Bluetooth Ibeacon information in the air and analyzes a main and a minor; after the LoRaWAN is activated for network access, the LoRaWAN completes registration binding of equipment and reports positioning data, alarm data and heartbeat data; the three-axis motion sensor senses whether the equipment moves or not and is used for controlling the frequency of the reporting of the positioning data; and carrying out configuration, reading, operation, upgrading and debugging through NFC. The power is reduced, the device can be operated and used by adopting a 3V battery, and once the device is activated, the device can be automatically recovered even if the network is disconnected without human intervention. Hardware error self-checking can be carried out, the server is reported in real time, the maintenance cost is reduced, and meanwhile, the anti-dismantling alarm is carried out through the light sensation sensor module.

Preferably, the master control bluetooth module adopts a chip M1 as a master chip, the model of the chip M1 is LSD4BT-E92ASTD001, and the master chip can control the operation of the asset locator together with hardware equipment through a program. The main control Bluetooth module adopts a Bluetooth beacon positioning technology, scans beacon information which is installed in a matched mode in an area, reports the information to a cloud server by using a lorawan data communication module after statistics, calculates accurate position information after a specific algorithm is carried out, and presents the position information to a manager or a user.

Preferably, the NFC antenna module includes an antenna ANT4, a TVS protection tube D2, a capacitor C5, a resistor R25, an antenna ANT3, a TVS protection tube D3, a capacitor C6, and a resistor R26; the output end of the antenna ANT4 is connected with the second end of the TVS protection tube D2, the first end of the TVS protection tube D2 is grounded, the output end of the antenna ANT4 is connected with the second end of the capacitor C5, the first end of the capacitor C5 is grounded, the second end of the capacitor C5 is connected with the first end of the resistor R25, and the second end of the resistor R25 is connected with the NFC1 port of the chip M1; the output end of the antenna ANT3 is connected with the second end of the TVS protection tube D3, the first end of the TVS protection tube D3 is grounded, the output end of the antenna ANT3 is connected with the second end of the capacitor C6, the first end of the capacitor C6 is grounded, the second end of the capacitor C6 is connected with the first end of the resistor R26, and the second end of the resistor R26 is connected with the NFC2 port of the chip M1; the model of the chip M1 is LSD4BT-E92ASTD001. The NFC antenna is connected with the master control Bluetooth module, so that the integration of an asset locator and an NFC technology can be realized, and meanwhile, the NFC antenna can be configured, inquired and operated by a mobile phone with NFC by using a WeChat applet which is independently developed by Lierda.

Preferably, the LoRaWAN module is used for reporting positioning data, alarm data and heartbeat data, and the LoRaWAN module can be used for rapidly helping managers in the area to detect instrument and equipment distribution in the area, so that reasonable scheduling positioning is realized, and the utilization rate of resources is improved.

Preferably, the LoRaWAN antenna comprises a capacitor C13, a resistor R13, a capacitor C14, a TVS protection tube D4 and an antenna ANT2; a GND port of the antenna ANT4 is grounded, an RF port of the antenna ANT4 is connected with a first end of a TVS protection tube D4, and a second end of the TVS protection tube D4 is grounded; the TVS protection tube D4 is connected with the first end of the capacitor C14, and the second end of the capacitor C14 is grounded; the first end of the capacitor C14 is connected with the second end of the resistor R13, one end of the resistor R13 is connected with the first end of the capacitor C13, and the second end of the capacitor C13 is grounded; the first end of the capacitor C13 is connected with an ANT port of a chip M2 of the LoRaWAN module; the model of the chip M2 is LSD4WN-2R717M9A. And Bluetooth beacon positioning data is packed and uploaded through a LoRaWAN circuit, so that assets are tracked and managed at the cloud.

Preferably, the light sensation sensor module is arranged at the bottom of the asset locator, and the light sensation sensor is arranged at the bottom of the asset locator, so that the initial light intensity is lower, and the alarm error caused by the fact that people are simply close to the shading is avoided.

Preferably, the light sensation sensor module comprises a light sensation circuit and an alarm circuit; the light sensing circuit comprises a light sensing diode D1, a resistor R27, a capacitor C35, a light emitting diode A1, a light emitting diode A2, a resistor R10 and a resistor R12; VCC OUT is connected with the positive end of the light sensing diode D1, the negative end of the light sensing diode D1 is connected with the first end of the resistor R27, and the second end of the resistor R27 is grounded; a first end of the resistor R27 is connected with a first end of the capacitor C35, and a second end of the capacitor C35 is grounded; a first end of the capacitor C35 is connected with the LPCOMP port of the M1; the positive end of a VCC OUT light-emitting diode A1, the negative end of the light-emitting diode A1 is connected with the first end of a resistor R12, and the second end of the resistor R12 is connected with the LED _ K1 port of the M1; the VCC OUT light emitting diode A2 has a positive terminal, the light emitting diode A2 has a negative terminal connected to the first terminal of the resistor R10, and the resistor R10 has a second terminal connected to the LED _ K2 port of the M1. If the light intensity data that the light sense diode gathered takes place when the great change, and the electric current in the circuit takes place the great change, and chip M1 carries out the warning with the alarm circuit in signal transmission to the light sense sensor module, through the buzzer to the great change of light intensity data, has avoided the asset locator to be taken off by the people to a certain extent, has ensured the safety of asset locator.

The utility model has the advantages that:

1. the service life is long; due to the extremely low power consumption design, the equipment can run for 3 to 5 years, and the cost of frequent replacement is avoided.

2. The maintenance is convenient; once activated, the equipment can automatically recover even if the network is disconnected without human intervention. And the system also has hardware error self-checking function, reports to the server in real time and reduces maintenance cost.

3. The operation and the installation are simple; when in use, the equipment is fixed on an instrument needing to be positioned by 3M glue. And an NFC WeChat small program which is independently developed and developed by Lierda is matched, so that the operation is visualized, the basic information of the running state of the equipment can be read in real time, and the equipment is operated, including activation, upgrading, parameter change and the like.

4. Has the anti-removal alarm; the light sensation can detect the change intensity of the light, and the dismantling alarm can be carried out.

Drawings

FIG. 1 is a block diagram of the system of the present application;

FIG. 2 is a circuit diagram of a main control Bluetooth module and a power supply of the present application;

fig. 3 is a circuit diagram of the LoRaWAN module and the NFC antenna module according to the present application;

FIG. 4 is a circuit diagram of a three-axis sensor module and a light sensor module according to the present application;

fig. 5 is a system architecture diagram of the present application.

Detailed Description

It should be understood that the examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The technical solution of the present invention is further specifically described below by way of embodiments and with reference to the accompanying drawings.

A Bluetooth asset locator based on LORAWAN and NFC communication comprises an NFC antenna module, a master control Bluetooth module, a light-sensitive sensor module, a three-color LED, a three-axis sensor module, a LoRaWAN antenna and a lithium battery; the LoRaWAN module is connected with the LoRaWAN antenna; the lithium battery supplies power to the master control Bluetooth module; the master control Bluetooth module is respectively connected with the light sensor, the three-axis sensor and the NFC antenna; the master control bluetooth module and the LoRaWAN module are in interactive connection. The locator internally comprises a central processing module, a radio frequency module, a three-axis sensor, an antenna, a power supply, a light sense, an LED, an NFC and the like. By using the mobile phone with the NFC function, the label can be activated and configured in WeChat small program-Lierda indoor positioning. The first use of the product requires binding on the server and then activation. In the activation process, the product sends a network access request through the LORA, and after the network access is successful, the product and the server perform equipment registration binding, so that the product enters a working mode and periodically reports positioning data. The shell material of the locator is injection molded by ABS + permanent antistatic engineering plastics.

The main control Bluetooth module collects the Ibeacon information of the specific Bluetooth in the air and analyzes a main and a minor; the method comprises the steps of firstly requiring an APP program to be in a non-departure state, directly starting to work if the program is activated, and entering a registration interface again if the program is not activated but the program is accessed to the network. After the LoRaWAN is activated for network access, registration and binding of the equipment are completed, and then positioning data, alarm data and heartbeat data can be reported; the three-axis motion sensor can sense whether the equipment moves or not and is used for controlling the reporting frequency of the positioning data; configuration, reading, operation, upgrading and debugging are carried out through NFC; the light sensor can perceive and judge the light intensity at the bottom, and because the light sensor is arranged at the bottom of the locator, the light intensity is lower, when the light intensity changes, namely, a person approaches and contacts the asset locator, the light can be shielded, the light intensity received by the light sensing diode is reduced, so that the person can be directly perceived to approach and contact and send out an alarm, and the function can provide anti-dismantling alarm and ensure the safety of the asset locator.

The first use of the product requires binding on the server and then activation by the applet. After the network access and the registration are successful, the working mode is entered, and the beacon is searched. The device enters a normal operating mode after being normally activated and registered. Ibeacon's signal search will be carried out first, and the signal will be filtered by specific UUID, and the information of the locating point will be packaged according to the protocol and reported to the server. The reported time interval can be adjusted in real time according to the motion state of the equipment. And the equipment also reports the equipment state in a fixed time interval.

Combine NFC + bluetooth beacon + LoRaWAN to constitute a system, carry out wireless operation activation through the NFC technique, upload bluetooth beacon locating data packing through LoRaWAN to realize the high in the clouds and track the management asset.

Claims

1. A bluetooth asset locator based on LORAWAN and NFC communications, characterized by: the locator comprises an NFC antenna module, a master control Bluetooth module, a light-sensitive sensor module, a three-color LED, a three-axis sensor module, a LoRaWAN antenna and a lithium battery; the lithium battery supplies power to the master control Bluetooth module; the master control Bluetooth module is in interactive connection with the LoRaWAN module; the master control Bluetooth module is respectively connected with the light sensor, the three-axis sensor and the NFC antenna; loRaWAN module connection LoRaWAN antenna.

2. The bluetooth asset locator based on LORAWAN and NFC communication of claim 1, wherein: the master control Bluetooth module comprises a chip M1; the NFC antenna module comprises an antenna ANT4, a TVS protection tube D2, a capacitor C5, a resistor R25, an antenna ANT3, a TVS protection tube D3, a capacitor C6 and a resistor R26; the output end of the antenna ANT4 is connected with the second end of the TVS protection tube D2, the first end of the TVS protection tube D2 is grounded, the output end of the antenna ANT4 is connected with the second end of the capacitor C5, the first end of the capacitor C5 is grounded, the second end of the capacitor C5 is connected with the first end of the resistor R25, and the second end of the resistor R25 is connected with the NFC1 port of the chip M1; the output end of the antenna ANT3 is connected with the second end of the TVS protection tube D3, the first end of the TVS protection tube D3 is grounded, the output end of the antenna ANT3 is connected with the second end of the capacitor C6, the first end of the capacitor C6 is grounded, the second end of the capacitor C6 is connected with the first end of the resistor R26, and the second end of the resistor R26 is connected with the NFC2 port of the chip M1; the model of the chip M1 is LSD4BT-E92ASTD001.

3. The LORAWAN and NFC communication-based bluetooth asset locator of claim 1, wherein: the LoRaWAN antenna comprises a capacitor C13, a resistor R13, a capacitor C14, a TVS protection tube D4 and an antenna ANT2; a GND port of the antenna ANT4 is grounded, an RF port of the antenna ANT4 is connected with a first end of a TVS protection tube D4, and a second end of the TVS protection tube D4 is grounded; the TVS protection tube D4 is connected with the first end of the capacitor C14, and the second end of the capacitor C14 is grounded; the first end of the capacitor C14 is connected with the second end of the resistor R13, one end of the resistor R13 is connected with the first end of the capacitor C13, and the second end of the capacitor C13 is grounded; the first end of the capacitor C13 is connected with an ANT port of a chip M2 of the LoRaWAN module; the model of the chip M2 is LSD4WN-2R717M9A.

4. The bluetooth asset locator based on LORAWAN and NFC communication of claim 1, wherein: the light sensor module is arranged at the bottom of the asset positioner.

5. The bluetooth asset locator based on LORAWAN and NFC communication of claim 2, wherein: the light-sensitive sensor module comprises a light-sensitive circuit and an alarm circuit; the light sensing circuit comprises a light sensing diode D1, a resistor R27, a capacitor C35, a light emitting diode A1, a light emitting diode A2, a resistor R10 and a resistor R12; VCC OUT is connected with the positive end of the light sensing diode D1, the negative end of the light sensing diode D1 is connected with the first end of the resistor R27, and the second end of the resistor R27 is grounded; a first end of the resistor R27 is connected with a first end of the capacitor C35, and a second end of the capacitor C35 is grounded; a first end of the capacitor C35 is connected with an LPCOMP port of the M1; the positive end of a VCC OUT light-emitting diode A1, the negative end of the light-emitting diode A1 is connected with the first end of a resistor R12, and the second end of the resistor R12 is connected with the LED _ K1 port of the M1; the VCC OUT light emitting diode A2 has a positive end, the light emitting diode A2 has a negative end connected to the first end of the resistor R10, and the resistor R10 has a second end connected to the LED _ K2 port of the chip M1.