BLE technology card circuit based on RFID activation

Abstract

The utility model discloses a BLE (Bluetooth Low Energy) technology card circuit based on RFID (Radio Frequency Identification Device) activation, which comprises a 2.4 G low-power-consumption Bluetooth chip used for broadcasting and reporting position information in real time; the RFID circuit can store personnel information and a Bluetooth MAC address in advance, and performs long-distance and large-quantity sensing identification through an RFID transceiver; the power supply circuit is used for supplying power to the 2.4 G low-power-consumption Bluetooth chip and the RFID circuit; the RFID technology and the BLE technology are fused, the advantages of UHF frequency band radio waves are utilized, the characteristics of long-distance and multi-label rapid reading and high penetrability are achieved, the efficiency and accuracy of personnel tracking and information reporting are effectively improved, meanwhile, the operation process is simplified, the environmental adaptability is enhanced, and the working efficiency is improved. And an efficient and convenient solution is provided for personnel management in smart city construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to a card circuit technical field, concretely relates to a BLE technology card circuit based on RFID activation. BACKGROUND

[0002] At present, the industry adopts NFC technology to carry out personnel management and information tracking, relies on the reader and writer of the site identification place to identify or report information in a short distance and one-to-one, and the efficiency is low, and the personnel position information during the period and the mobility during wearing cannot be effectively tracked and managed. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the main purpose of the utility model is to provide a BLE technology card circuit based on RFID activation.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] The utility model embodiment provides a BLE technology card circuit based on RFID activation, which comprises:

[0006] Comprise:

[0007] 2.4G low-power Bluetooth chip is used for real-time broadcast and report position information;

[0008] RFID circuit, personnel information and Bluetooth MAC address can be pre-stored, and long-distance and multiple quantity induction identification can be carried out through the RFID transceiver;

[0009] Power supply circuit, for 2.4G low-power Bluetooth chip and RFID circuit power supply;

[0010] LED indicating lamp circuit is used for indicating the working state and the sleep state of the card;

[0011] 2.4G Bluetooth antenna is connected with the 2.4G low-power Bluetooth chip and is used for emitting data to realize the real-time report of position information;

[0012] Wherein, the card circuit is initially in the sleep state, when the RFID circuit is inducted by the RFID transceiver, the output interrupt signal activates the card, and the 2.4G low-power Bluetooth chip starts to broadcast position information.

[0013] The utility model discloses preferably, the power supply circuit includes battery, low voltage difference linear voltage stabilizer, ninth electric capacity, tenth electric capacity, the positive pole of battery is connected with ninth electric capacity's first end and low voltage difference linear voltage stabilizer's VI N end respectively, the VOUT end of low voltage difference linear voltage stabilizer is connected with tenth electric capacity's first end and 2.4G low power consumption bluetooth chip's VDD end respectively, the negative pole of battery, ninth electric capacity's second end, low voltage difference linear voltage stabilizer's VSS end and tenth electric capacity's second end all ground connection.

[0014] The utility model discloses preferably, the RFID circuit includes RFID chip, RFID antenna, sixth electric capacity, eighth electric capacity, eleventh electric capacity, twelfth electric capacity, RFID chip's SCL end is connected with 2.4G low power consumption bluetooth chip's P0.16 end, the VDD end of RFID chip is connected with eleventh electric capacity after ground connection, RFID chip's RF2P end is connected with sixth electric capacity's first end, eighth electric capacity's first end and RFID antenna's first end respectively, RFID chip's RF2N end is connected with twelfth electric capacity's first end, eighth electric capacity's second end and RFID antenna's second end respectively, sixth electric capacity's second end and twelfth electric capacity's second end all ground connection.

[0015] The utility model discloses preferably, the 2.4G bluetooth antenna includes bluetooth antenna, third inductance, fourth inductance, fifth inductance, thirteenth electric capacity, fourteenth electric capacity, fifteenth electric capacity, third inductance's first end is connected with 2.4G low power consumption bluetooth chip's ANT end, third inductance's second end is connected with fourth inductance's first end and thirteenth electric capacity's first end respectively, fourth inductance's second end is connected with fifth inductance's first end and fourteenth electric capacity's first end respectively, fifth inductance's second end is connected with fifteenth electric capacity's first end and bluetooth antenna's first end respectively, thirteenth electric capacity's second end is connected with fourteenth electric capacity's second end, fifteenth electric capacity's second end and bluetooth antenna's second end respectively after ground connection.

[0016] The utility model discloses preferably, the LED pilot lamp circuit includes first resistor, light emitting diode, first resistor's first end is connected with 2.4G low power consumption bluetooth chip's P0.12 end, first resistor's second end is connected with light emitting diode after ground connection.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The utility model discloses through fusing RFID and BLE technology, utilize the advantage of UHF frequency band radio wave, realized long distance, multi-label quick reading and the characteristic of strong penetrability, effectively promoted the efficiency and accuracy of personnel tracking and information report, simplified the operation process simultaneously, enhanced the environmental adaptability, provided efficient, convenient solution for the personnel management in wisdom city construction. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings described here are used to disclose the further understanding of the utility model, constitute a part of the utility model, and the illustrative embodiment and the explanation thereof of the utility model are used to explain the utility model, and do not constitute the improper limitation to the utility model.

[0020] Figure 1 It is the structure schematic drawing of BLE technology card circuit based on RFID activation for the utility model embodiment;

[0021] Figure 2 It is the structure schematic drawing of 2.4G low power consumption bluetooth chip in BLE technology card circuit based on RFID activation for the utility model embodiment;

[0022] Figure 3 It is the structure schematic drawing of power supply circuit in BLE technology card circuit based on RFID activation for the utility model embodiment;

[0023] Figure 4 It is the structure schematic drawing of RFID circuit in BLE technology card circuit based on RFID activation for the utility model embodiment;

[0024] Figure 5 It is the structure schematic drawing of LED indicating lamp circuit in BLE technology card circuit based on RFID activation for the utility model embodiment. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model more clear, the following combines the drawing and embodiment, and further detailedly explains the utility model. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0026] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, for ordinary skilled persons in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0027] It should be noted that in this document, the terms "comprise", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, article or device. Without more limitations, the element defined by the sentence "comprises a" does not exclude the presence of another identical element in the process, article or device comprising the element.

[0028] The utility model embodiment provides a kind of BLE technology card circuit based on RFID activation, as shown in Figures 1-5 It includes:

[0029] 2.4G low-power Bluetooth chip U1 is used to broadcast real-time reporting position information;

[0030] RFID circuit, personnel information and Bluetooth MAC address can be pre-stored, and long-distance, multiple quantity sensing identification is carried out by RFID transceiver;

[0031] Power supply circuit, for the 2.4G low-power Bluetooth chip U1 and RFID circuit power supply;

[0032] LED indicator circuit is used to indicate the working state and sleep state of card;

[0033] 2.4G Bluetooth antenna is connected with the 2.4G low-power Bluetooth chip U1, and is used to emit data to realize the real-time reporting of position information;

[0034] Wherein, the card circuit initially is in sleep state, when RFID circuit is inducted by RFID transceiver, output interrupt signal activates card, and makes 2.4G low-power Bluetooth chip U1 start broadcasting position information.

[0035] As shown in Figure 2 And Figure 3As shown in the power supply circuit, the battery BAT1, low dropout linear regulator U3, the ninth capacitor C9, the tenth capacitor C10, the positive electrode of the battery BAT1 is connected with the first end of the ninth capacitor C9 and the VIN end of the low dropout linear regulator U3 respectively, the VOUT end of the low dropout linear regulator U3 is connected with the first end of the tenth capacitor C10 and the VDD end of the 2.4G low power Bluetooth chip U1 respectively, the negative electrode of the battery BAT1, the second end of the ninth capacitor C9, the VSS end of the low dropout linear regulator U3 and the second end of the tenth capacitor C10 are grounded.

[0036] As shown in the power supply circuit, Figures 2-4 As shown in the RFID circuit, the RFID chip U2, RFID antenna A1, the sixth capacitor C6, the eighth capacitor C8, the eleventh capacitor C11, the twelfth capacitor C12, the SCL end of the RFID chip U2 is connected with the P0.16 end of the 2.4G low power Bluetooth chip U1, the VDD end of the RFID chip U2 is connected with the ground after connecting with the eleventh capacitor C11 in series, the RF2P end of the RFID chip U2 is connected with the first end of the sixth capacitor C6, the first end of the eighth capacitor C8 and the first end of the RFID antenna A1 respectively, the RF2N end of the RFID chip U2 is connected with the first end of the twelfth capacitor C12, the second end of the eighth capacitor C8 and the second end of the RFID antenna A1 respectively, the second end of the sixth capacitor C6 and the second end of the twelfth capacitor C12 are grounded.

[0037] As shown in the power supply circuit, Figure 2 As shown in the 2.4G Bluetooth antenna, the Bluetooth antenna ANT1, the third inductor L3, the fourth inductor L4, the fifth inductor L5, the thirteenth capacitor C13, the fourteenth capacitor C14, the fifteenth capacitor C15, the first end of the third inductor L3 is connected with the ANT end of the 2.4G low power Bluetooth chip U1, the second end of the third inductor L3 is connected with the first end of the fourth inductor L4 and the first end of the thirteenth capacitor C13 respectively, the second end of the fourth inductor L4 is connected with the first end of the fifth inductor L5 and the first end of the fourteenth capacitor C14 respectively, the second end of the fifth inductor L5 is connected with the first end of the fifteenth capacitor C15 and the first end of the Bluetooth antenna ANT1 respectively, the second end of the thirteenth capacitor C13 is connected with the second end of the fourteenth capacitor C14, the second end of the fifteenth capacitor C15 and the second end of the Bluetooth antenna ANT1 respectively and grounded.

[0038] As shown in the power supply circuit, Figure 5 As shown in the LED indicator circuit, the first resistor R1, the light emitting diode D1, the first end of the first resistor R1 is connected with the P0.12 end of the 2.4G low power Bluetooth chip U1, the second end of the first resistor R1 is connected with the ground after connecting with the light emitting diode D1 in series.

[0039] The working principle of the utility model is as follows:

[0040] As Figures 1-3 The BLE technology card circuit based on RFID activation, the working principle is as follows:

[0041] Initial state: the card circuit is in a dormant state when it is not activated, at this time, the 2.4G low-power Bluetooth chip U1 does not work, and the LED indicator light is off, so as to save energy. The power supply circuit provides stable power support for the entire card circuit, but only powers each component when needed.

[0042] RFID activation: when the individual wearing the card enters the sensing range of the RFID transceiver, the RFID transceiver sends a radio frequency signal to activate the RFID tag in the RFID circuit. The RFID tag responds to this signal and sends the information stored therein, including personnel information and Bluetooth MAC address. After the RFID transceiver receives these information, together with the location information of the receiving place, it is transmitted to the logistics scheduling management center through wired or wireless mode, and stored in the information database of the center.

[0043] Card activation and location information broadcast: at the same time when the RFID circuit is activated, an interrupt signal (such as P0.16) is output to the 2.4G low-power Bluetooth chip U1. The interrupt signal serves as a trigger condition to wake up the Bluetooth chip from the dormant state and start working. Once woken up, the Bluetooth chip starts broadcasting location information through the 2.4G Bluetooth antenna. These information includes Bluetooth MAC address (for identity recognition) and possible location data (if the Bluetooth chip has self-positioning function). In smart park, smart venue and other applications, these location information are received and processed by the Bluetooth positioning base station at the receiving place.

[0044] LED indicator light state change: after the card is activated and enters the working state, the LED indicator light is always on for 3 seconds to visually indicate that the card is working. When the card receives a sleep instruction or enters a dormant state due to other reasons, the LED indicator light will flash 3 times, prompting the user that the card has stopped working.

[0045] Location information upload and filtering: in smart application scenarios such as transportation line inspection station, warehouse, station, wharf, airport, etc., the Bluetooth positioning base station filters data based on the Bluetooth MAC address in the RFID sensing information, to ensure that only the personnel location information related to the current area is uploaded. This helps to improve the efficiency and accuracy of information processing.

[0046] Hibernation instruction and energy consumption management: after the card is used, the base station can send a hibernation instruction to the card through wireless mode. Once the instruction is received, the 2.4G low-power Bluetooth chip U1 stops broadcasting position information, the RFID circuit also enters the hibernation state, and the LED indicator light is turned off. At this time, the power supply circuit continues to provide minimum power support for the card to maintain the hibernation state and prepare for the next activation. This low-power management function helps to prolong the life of the card battery.

[0047] The above merely describes preferred embodiments of the present application, and is not intended to limit the scope of protection of the present application.

Claims

1. A BLE technology card circuit based on RFID activation, characterized in that, include: A 2.4G low-power Bluetooth chip is used for real-time broadcasting and reporting of location information; The RFID circuit can pre-store personnel information and Bluetooth MAC addresses, and perform long-distance, multi-quantity sensing and identification through an RFID transceiver; The power supply circuit provides power to the 2.4G low-power Bluetooth chip and the RFID circuit. LED indicator circuit is used to indicate the card's working and sleep status; A 2.4G Bluetooth antenna, connected to the 2.4G low-power Bluetooth chip, is used to transmit data to achieve real-time reporting of location information; The card circuit is initially in a dormant state. When the RFID circuit is sensed by the RFID transceiver, it outputs an interrupt signal to activate the card, causing the 2.4G low-power Bluetooth chip to start broadcasting location information.

2. The BLE technology card circuit based on RFID activation according to claim 1, characterized in that, The power supply circuit includes a battery, a low-dropout linear regulator, a ninth capacitor, and a tenth capacitor. The positive terminal of the battery is connected to the first terminal of the ninth capacitor and the VIN terminal of the low-dropout linear regulator. The VOUT terminal of the low-dropout linear regulator is connected to the first terminal of the tenth capacitor and the VDD terminal of the 2.4G low-power Bluetooth chip. The negative terminal of the battery, the second terminal of the ninth capacitor, the VSS terminal of the low-dropout linear regulator, and the second terminal of the tenth capacitor are all grounded.

3. A BLE technology card circuit based on RFID activation according to claim 2, characterized in that, The RFID circuit includes an RFID chip, an RFID antenna, a sixth capacitor, an eighth capacitor, an eleventh capacitor, and a twelfth capacitor. The SCL terminal of the RFID chip is connected to the P0.16 terminal of the 2.4G low-power Bluetooth chip. The VDD terminal of the RFID chip is connected to ground after being connected in series with the eleventh capacitor. The RF2P terminal of the RFID chip is connected to the first terminal of the sixth capacitor, the first terminal of the eighth capacitor, and the first terminal of the RFID antenna, respectively. The RF2N terminal of the RFID chip is connected to the first terminal of the twelfth capacitor, the second terminal of the eighth capacitor, and the second terminal of the RFID antenna, respectively. The second terminals of the sixth capacitor and the second terminals of the twelfth capacitor are both grounded.

4. A BLE technology card circuit based on RFID activation according to claim 3, characterized in that, The 2.4G Bluetooth antenna includes a Bluetooth antenna, a third inductor, a fourth inductor, a fifth inductor, a thirteenth capacitor, a fourteenth capacitor, and a fifteenth capacitor. The first end of the third inductor is connected to the ANT terminal of the 2.4G low-power Bluetooth chip. The second end of the third inductor is connected to the first end of the fourth inductor and the first end of the thirteenth capacitor. The second end of the fourth inductor is connected to the first end of the fifth inductor and the first end of the fourteenth capacitor. The second end of the fifth inductor is connected to the first end of the fifteenth capacitor and the first end of the Bluetooth antenna. The second end of the thirteenth capacitor is connected to the second ends of the fourteenth capacitor, the fifteenth capacitor, and the Bluetooth antenna, and then grounded.

5. A BLE technology card circuit based on RFID activation according to claim 4, characterized in that, The LED indicator circuit includes a first resistor and a light-emitting diode. The first end of the first resistor is connected to the P0.12 terminal of the 2.4G low-power Bluetooth chip, and the second end of the first resistor is connected in series with the light-emitting diode and then grounded.

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