A lost item search radio frequency tag

Abstract

This utility model belongs to the field of radio frequency antenna technology, specifically relating to a location-finding radio frequency tag. The utility model includes: a radio frequency antenna comprising an inductor coil, with a first binding point on one side and a second binding point on the other side; a chip electrically connected to the first binding point; a rectifier bridge, with its input terminal electrically connected to the second binding point; a power supply circuit electrically connected to the output terminal of the rectifier bridge; a ceramic capacitor connected in parallel with the power supply circuit; a Zener diode connected in parallel with the power supply circuit; and at least one electrical appliance connected in parallel with the power supply circuit. This utility model addresses the technical problem of existing tags being difficult to accurately locate in large-scale applications.

Description

Technical Field

[0001] This utility model belongs to the field of radio frequency antenna technology, and specifically relates to a locator radio frequency tag. Background Technology

[0002] The main function of RFID tags is to assign a "digital identity" to items through wireless communication, enabling contactless identification of bulk items. RFID tags are widely used in various fields, including warehousing and logistics, sales, inventory management, and industrial manufacturing.

[0003] Because RFID tags and readers have limited reading and writing ranges, in large warehouses where RFID tags are used extensively, all RFID tags within the range will respond when the reader sends a signal. However, it is difficult to identify the specific tag that responded and its corresponding goods (especially for large quantities of goods with the same packaging). Warehouse managers can only check the goods one by one within this range to find the correct item, resulting in excessively long search times and reduced work efficiency. Utility Model Content

[0004] This invention provides a location tracking RFID tag to solve the technical problem that existing tags are difficult to accurately locate in large-scale application environments. This utility model includes: a radio frequency antenna, the radio frequency antenna including an inductor coil, a first bonding point on one side of the inductor coil and a second bonding point on the other side; The chip is electrically connected to the first bonding point; The rectifier bridge has its input terminal electrically connected to the second bonding point; The power circuit is electrically connected to the output terminal of the rectifier bridge; A ceramic capacitor is connected in parallel with the power circuit. A Zener diode is connected in parallel with the power supply circuit; At least one electrical appliance is connected in parallel with the electrical circuit.

[0005] This invention utilizes the induced pulse AC power generated by a radio frequency antenna to convert it into DC power, providing a working power source for electrical appliances, and can be used for a long time.

[0006] Furthermore: when there is one electrical appliance, the electrical appliance is an LED light, and the beneficial effect of this step is that the LED light can emit light signals.

[0007] Furthermore: when there is one electrical appliance, the electrical appliance is a buzzer, and the beneficial effect of this step is that the buzzer can emit an audible signal.

[0008] Furthermore: when there are two electrical appliances, the electrical appliances are an LED light and a buzzer, and the buzzer and the LED light are connected in parallel. The beneficial effect of this step is that it can emit sound signals and light signals simultaneously.

[0009] Furthermore, a battery is connected in series with the circuit of the buzzer, which has the following advantages: the battery provides auxiliary power to the buzzer.

[0010] Furthermore, the battery is a flexible battery, which has the following advantages: the flexible battery is flatter and easier to use in conjunction with RFID tags.

[0011] Furthermore, it also includes a substrate layer, on which the radio frequency antenna and the power circuit are bonded. The chip and the rectifier bridge are bonded to the radio frequency antenna, the rectifier bridge, the ceramic capacitor, the Zener diode, and the electrical appliance and the power circuit via conductive adhesive. The beneficial effect of this step is that the substrate layer serves as a carrier for the above-mentioned components.

[0012] The beneficial effects of this utility model are: 1. The structure of RFID tags allows them to be easily attached to goods, closely connected to them, and can be used throughout the entire process from production, warehousing and logistics to final sales, providing the ability to locate items. 2. Since it mainly supplies power to electrical appliances through the induced current of the radio frequency antenna, it can be effective for a long time and is suitable for goods stored for a long time. There is no need to worry about the tag with its own battery becoming invalid after it runs out of power. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a first embodiment of a tracking RFID tag provided by this utility model; Figure 2 This is a schematic diagram of a second embodiment of a tracking RFID tag provided by this utility model.

[0015] Figure label: 1-Inductor coil; 2-Chip; 3-Rectifier bridge; 4-Power circuit; 5-Ceramic capacitor; 6-Zenith diode; 7-Electrical appliance; 8-Battery. Detailed Implementation

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] Implementation of this application, for example Figure 1 and Figure 2 As shown, this utility model provides a RFID tag for finding objects.

[0018] This application includes: a radio frequency antenna, the radio frequency antenna including an inductor coil 1, the inductor coil 1 having a first bonding point on one side and a second bonding point on the other side; Chip 2 is electrically connected to the first bonding point; The rectifier bridge 3 has its input terminal electrically connected to the second bonding point; The power circuit 4 is electrically connected to the output terminal of the rectifier bridge 3; Ceramic capacitor 5 is connected in parallel with the power supply circuit 4; Zener diode 6 is connected in parallel with the power supply circuit 4; At least one electrical appliance 7 is connected in parallel with the power circuit 4.

[0019] This application utilizes the induced pulse AC power generated by the radio frequency antenna after receiving radiation or magnetic field generated by the reader, which is converted into DC power by the rectifier bridge 3 to provide working power for the electrical appliance 7 on the power circuit 4, and can be used for a long time; the ceramic capacitor 5 makes the output current more stable, and the Zener diode 6 protects the electrical appliance 7.

[0020] There are multiple implementation schemes for the application appliance 7, including but not limited to Embodiment 1 and Embodiment 2. For example, when there is one appliance 7, the appliance 7 is an LED light, which can emit light signals.

[0021] When there is one electrical appliance 7, the electrical appliance 7 is a buzzer, which can emit an audible signal.

[0022] When there are two electrical appliances 7, the electrical appliances 7 are an LED light and a buzzer, and the buzzer and the LED light are connected in parallel, which can emit sound signals and light signals at the same time.

[0023] When there is a buzzer in the power circuit 4, considering that the buzzer consumes more power, a battery 8 is connected in series in the circuit of the buzzer to provide auxiliary power to the buzzer.

[0024] Based on the above technical solution, the battery 8 is a flexible battery, which is flatter and easier to use in conjunction with radio frequency tags.

[0025] Based on the above technical solution, a substrate layer is also included. The RF antenna and the power circuit 4 are bonded to the substrate layer. The chip 2, the rectifier bridge 3, the RF antenna, the rectifier bridge 4, the ceramic capacitor 5, the Zener diode 6, and the electrical appliance 7 are all bonded to the power circuit 4 using conductive adhesive. The substrate layer serves as a carrier for all the above components. The substrate layer can be a flexible film layer made of PET or other plastics, with an adhesive layer on one side. The RF tag can be adhered to the goods through the adhesive layer. The film-like substrate layer can be flat or bent for bonding, adapting to goods of various shapes. In the above, to make the RF tag flatter, the rectifier bridge 3, the ceramic capacitor 5, the Zener diode 6, the LED light, and the buzzer all adopt a surface-mount structure.

[0026] In addition, the substrate layer can also be a rigid substrate made of a circuit board.

[0027] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A tracking RFID tag, characterized in that, include: A radio frequency antenna, the radio frequency antenna including an inductor coil, a first bonding point on one side of the inductor coil and a second bonding point on the other side; The chip is electrically connected to the first bonding point; The rectifier bridge has its input terminal electrically connected to the second bonding point; The power circuit is electrically connected to the output terminal of the rectifier bridge; A ceramic capacitor is connected in parallel with the power circuit. A Zener diode is connected in parallel with the power supply circuit. At least one electrical appliance is connected in parallel with the electrical circuit.

2. The RFID tag for finding items according to claim 1, characterized in that, When there is only one electrical appliance, the electrical appliance is an LED light.

3. The RFID tag for finding items according to claim 1, characterized in that, When there is one electrical appliance, the electrical appliance is a buzzer.

4. The RFID tag for finding items according to claim 1, characterized in that, When there are two electrical appliances, the electrical appliances are an LED light and a buzzer, and the buzzer and the LED light are connected in parallel.

5. The RFID tag for finding items according to claim 3 or 4, characterized in that, A battery is also connected in series with the circuit of the buzzer.

6. The RFID tag for finding items according to claim 5, characterized in that, The battery is a flexible battery.

7. The RFID tag for finding items according to claim 1, characterized in that, It also includes a substrate layer, on which the radio frequency antenna and the power circuit are bonded. The chip and the rectifier bridge are bonded to the radio frequency antenna, the rectifier bridge, the ceramic capacitor, the Zener diode, and the electrical appliance and the power circuit via conductive adhesive.

Images