RFID (Radio Frequency Identification Device) low-power-consumption existence detection module for loading trolley

Abstract

The utility model belongs to the technical field of existence detection, in particular to an RFID (Radio Frequency Identification Device) low-power-consumption existence detection module for a loading trolley, which is embedded on a layer plate on the trolley for placing a tray and comprises a contact button, a battery and an RFID radio frequency antenna, the surface of the contact button is exposed out of the surface of the layer plate, the input end of the RFID radio frequency antenna is electrically connected with the output end of the contact button, and the output end of the RFID radio frequency antenna is electrically connected with the battery. And the battery is a micro button battery. The system can work normally in various complex workshop environments, has the advantage of stable and accurate data transmission, ensures that the existence state of each loading trolley in an automatic workshop can be detected and sent out in time, has the characteristic of low power consumption, can keep normal operation for a long time, and is high in reliability. And the manufacturing cost and the use cost are low.

Description

Technical Field

[0001] The utility model relates to the technical field of presence / absence detection, in particular to an RFID low-power consumption presence / absence detection module for a loading trolley. Background Art

[0002] By configuring a "presence detection" function on the workshop's loading carts (trolleys), the system can monitor in real time whether the cart is loaded with material, thereby automating the management of the production process. When a cart is empty, the system automatically dispatches a fully loaded cart to resume production, avoiding production interruptions and helping to reduce the time carts wait on the production line. If an empty cart is detected, the system quickly returns it to the loading area, reducing the time it spends unloaded and improving production efficiency.

[0003] The current configuration of the presence or absence detection function is usually based on infrared sensors or cameras. Since the presence or absence detection function needs to be kept turned on in real time, the common disadvantage of both infrared sensors and cameras is that they consume a lot of power.

[0004] Some of them use pressure sensors as the basis for detection, but this method has abnormal situations. When there is acceleration during the operation of the unloaded vehicle (that is, shaking or trembling), there will be detection values, so the accuracy will be insufficient.

[0005] To this end, the present application proposes an RFID low-power presence detection module for a loading trolley that can be used in modern workshop transportation and has high detection accuracy and low power consumption. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides an RFID low-power presence detection module for a loading trolley, which solves the problem that the existing presence detection function used in the loading trolley in the workshop cannot achieve both accuracy and low power consumption.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an RFID low-power consumption presence or absence detection module for a loading trolley is arranged on a shelf on the trolley for placing pallets, and includes a contact button, a battery and an RFID radio frequency antenna. The surface of the contact button is exposed to the surface of the shelf, and the input end of the RFID radio frequency antenna is electrically connected to the output end of the contact button.

[0008] Preferably, the RFID radio frequency antenna supports 2.4 GHZ frequency band active signals.

[0009] Preferably, the contact button, battery and RFID radio frequency antenna are integrated together through a PCB.

[0010] Preferably, the battery is a miniature button battery.

[0011] Preferably, there are a plurality of contact buttons.

[0012] Compared with the existing technology, the present invention provides a low-power RFID presence detection module for the loading trolley, which has the following beneficial effects:

[0013] The RFID low-power presence detection module for loading trolleys can work normally in various complex workshop environments, and has the advantages of relatively stable and accurate data transmission, ensuring that the presence or absence status of each loading trolley in the automated workshop can be detected and sent out in a timely manner. It also has the characteristics of low power consumption and can maintain normal operation for a long time, with low production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of an existing charging trolley;

[0015] Figure 2 This is a structural diagram of the RFID low-power presence detection module used for the loading trolley.

[0016] In the figure: A, trolley; B, shelf; C, pallet; 1, contact button; 2, battery; 3, RFID radio frequency antenna; 4, PCB. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] To facilitate understanding of how this technical solution achieves low-power and highly accurate presence detection, it is important to understand that a workshop is equipped with an RFID radio frequency antenna 3 capable of receiving tag information transmitted by the following methods: that is, a reader is installed within the workshop. When a loading cart A (i.e., a pallet truck) enters such a workshop, the RFID tag stores a unique code. After the tag is powered on, it periodically transmits a signal according to a preset rule. When the RFID tag enters the workshop area where the reader is located, the reader receives the information transmitted by the tag, completing the tag identification process. Of course, the above is all prior art and will facilitate understanding of this technical solution by those skilled in the art.

[0019] See also Figure 1-2The utility model provides the following technical solutions: an RFID low-power presence detection module for a loading trolley is embedded on a shelf B on a trolley A for placing a pallet C, and includes a contact button 1, a battery 2 and an RFID radio frequency antenna 3. The surface of the contact button 1 is exposed on the surface of the shelf B, the input end of the RFID radio frequency antenna 3 is electrically connected to the output end of the contact button 1, and the battery 2 is a micro button battery 2.

[0020] As an optional implementation scheme of the present invention, when pallet C is placed on shelf B, contact button 1 is pressed by gravity. Since contact button 1 uses "0" and "1" to represent the open and closed states of the contact, the RFID radio frequency antenna 3 sends a signal indicating that there is material in the cart, and the reader in the workshop can receive the signal, which is convenient for relevant personnel or automation systems (such as scheduling systems) to update the loading status of the cart in time. Moreover, by means of contact button 1, compared with traditional infrared sensors or cameras, power consumption can be significantly reduced.

[0021] Among them, since the transmission distance of RFID radio frequency tags is long, which can reach tens of meters or even farther, for common workshops, the RFID radio frequency tags have sufficient ability to send signals farther into the workshop, and can also ensure that the cart can receive the presence or absence detection signal no matter where it is located through the layout of the readers in the workshop; and RFID radio frequency tags have strong anti-interference performance, which can effectively resist magnetic field interference in a more complex workshop environment, and can maintain normal operation in various environments, thereby ensuring the stability of signal transmission, making the collection and transmission of presence or absence detection signals more stable and reliable.

[0022] Through the above structure, a presence detection function is provided that can work normally in various complex workshop environments, with the advantage of relatively stable and accurate data transmission, ensuring that the presence or absence status of each loading trolley A in the automated workshop can be detected and sent out in a timely manner, and it also has the characteristics of low power consumption, can maintain normal operation for a long time, and has low production cost and use cost.

[0023] Specifically, the RFID radio frequency antenna 3 supports 2.4 GHz frequency band active signals.

[0024] As an optional implementation scheme of the present invention, the 2.4 GHz frequency band has a higher transmission rate, which means that RFID tags can send and receive data at a faster speed. This high-speed transmission feature enables RFID systems to process large amounts of data and improve work efficiency. For example, in application scenarios such as logistics and warehouse management, fast data transmission can significantly improve the efficiency of operations such as cargo tracking and inventory counting, while also providing the benefits of longer transmission distances and strong anti-interference capabilities.

[0025] like Figure 2 As shown, the contact button 1, the battery 2 and the RFID radio frequency antenna 3 are integrated together through the PCB 4.

[0026] As an optional implementation scheme of the present invention, the presence / absence detection module is formed into a modular integrated device, which reduces wiring during use and defects in the use of the loading trolley A caused by wiring, and is easy to mass produce.

[0027] like Figure 1 As shown, a plurality of contact buttons 1 are provided.

[0028] As an optional embodiment of the present invention, multiple contact buttons 1 are provided primarily to ensure that after the pallet C is placed on the shelf B, at least one contact button 1 can be contacted. Of course, the present technical solution does not limit the positional layout of the contact buttons 1 on the shelf B, and those skilled in the art may customize the improvements based on the specifications of different pallet trucks or pallet C.

[0029] The working principle and usage process of the present invention are as follows: when the pallet C is placed on the shelf B, the contact button 1 is pressed by gravity. Since the contact button 1 uses "0" and "1" to indicate the open and closed states of the contact, the RFID radio frequency antenna 3 sends a signal indicating that there is material in the cart, and the reader in the workshop can receive the signal, which is convenient for relevant personnel or automation systems (such as scheduling systems) to update the loading status of the cart in a timely manner. Moreover, the contact button 1 can significantly reduce power consumption compared to traditional infrared sensors or cameras.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The RFID low-power presence detection module for the loading trolley is installed on the shelf on the trolley for placing pallets, including a contact button, a battery and an RFID radio frequency antenna, characterized in that: The surface of the contact button is exposed from the surface of the layer board, and the input end of the RFID radio frequency antenna is electrically connected to the output end of the contact button.

2. The RFID low-power consumption presence detection module for a loading trolley according to claim 1 is characterized in that: The RFID radio frequency antenna supports 2.4 GHZ frequency band active signals.

3. The RFID low-power consumption presence detection module for a loading trolley according to claim 1 is characterized in that: The contact button, battery and RFID radio frequency antenna are integrated together through a PCB.

4. The RFID low-power consumption presence detection module for a loading trolley according to claim 1 is characterized in that: The battery is a miniature button battery.

5. The RFID low-power consumption presence detection module for a loading trolley according to claim 1 is characterized in that: There are a plurality of contact buttons.

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