An RFID data acquisition device with integrated touch screen

Abstract

This utility model relates to an RFID data acquisition device with an integrated touchscreen, comprising a device body, an extension rod on the device body, a reading antenna on the extension rod, a touchscreen on the device body, and a touchscreen circuit including a main chip U1. The main chip U1 is connected to an LCD circuit, a TP circuit, and a NAND-Flash circuit. The NAND-Flash circuit is connected to the device's storage. The main chip U1 is connected to a TF card circuit, which is connected to an anti-jamming circuit. The TP circuit detects and transmits touch signals to the main chip U1. The main chip U1 transmits the signals to the NAND-Flash circuit or the TF card circuit. The NAND-Flash circuit or the TF card circuit transmits data resources to the main chip U1. The main chip U1 transmits the data resources to the LCD circuit, thereby enabling the touchscreen to display images. The anti-jamming circuit prevents signal integrity from collapsing when the screen is touched.

Description

Technical Field

[0001] This utility model relates to the field of livestock RFID identification, and more specifically, to an RFID data acquisition device with an integrated touch screen. Background Technology

[0002] As the livestock industry moves towards digitalization, RFID technology is increasingly being used in livestock farming management. In large-scale farms, the application of RFID is commonplace, and RFID technology can improve the automation and intelligence levels of livestock farming.

[0003] Users can identify livestock through RFID devices to facilitate precise breeding. In order to conveniently display the text, images, videos and other relevant information needed by users, and to facilitate the operation of RFID devices, a touch screen display is added to the RFID device, thus requiring a touch screen circuit. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, an RFID data acquisition device with an integrated touchscreen is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an RFID acquisition device with an integrated touch screen, including a device body, an extension rod on the device body, a reading antenna on the extension rod, a touch screen on the device body, and a touch screen circuit on the acquisition device. The touch screen circuit is disposed on the device body, and the touch screen and the device body are electrically connected through the touch screen circuit. The touch screen circuit includes a main chip U1, which is connected to an LCD circuit, a TP circuit, and a NAND-Flash circuit. The NAND-Flash circuit is connected to the device's storage. The main chip U1 is also connected to a TF card circuit, which is connected to an anti-freeze circuit to prevent the system from freezing when the screen is touched.

[0006] Preferably, the TF card circuit includes a TF card slot connected to an anti-jamming circuit. Pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 of the TF card slot are all connected to a first resistor, which is connected to the main chip U1. Pin VDD of the TF card slot is connected to a power supply and connected in parallel with a capacitor C3, which is grounded. Pins C / D of the TF card slot are connected to the main chip U1, and the TF card slot is grounded.

[0007] Preferably, the anti-jamming circuit includes multiple second resistors. Each of the pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 of the TF card slot is provided with a second resistor between it and the corresponding first resistor. All of the multiple second resistors are connected to the power supply.

[0008] Preferably, the LCD circuit includes a connector J2 connected to the main chip U1. The connector J2 is grounded. A third resistor is connected to the LEDK pin of the connector J2. The third resistor is connected to a transistor Q3. The third resistor is connected to the collector of the transistor Q3. The emitter of the transistor Q3 is grounded. A fourth resistor and a fifth resistor are connected to the base of the transistor Q3. The fourth resistor is grounded. The fifth resistor is connected to the main chip U1.

[0009] Preferably, the RESET pin of the connector J2 is connected to a sixth resistor, which is connected to the main chip U1.

[0010] Preferably, the TP circuit includes a connector J3, which is grounded. Pins SDA, SCL, INT, and RST of the connector J3 are all connected to a seventh resistor, which is connected to the main chip U1. The seventh resistors connected to pins SDA and SCL of the connector J3 are also connected to an eighth resistor, which is connected to the power supply.

[0011] Preferably, the NAND-Flash circuit includes a storage chip U9, which is grounded. The HOLD, CLK, DI, WP, DO, and CS pins of the storage chip U9 are all connected to the main chip U1. The HOLD and WP pins of the storage chip U9 are each connected to a ninth resistor, which is connected to the power supply. The VCC pin is connected to a capacitor C84 and is connected to the power supply. The capacitor C84 is grounded.

[0012] An RFID device is provided with a touch screen for displaying livestock-related information, and the RFID device is provided with any of the above-mentioned touch screen circuits.

[0013] The beneficial effects of this utility model are as follows: The touch screen displays images through the LCD circuit, the TP circuit detects the touch position of the user's finger and transmits the touch signal to the main chip U1, the main chip U1 transmits the command signal to the NAND-Flash circuit, the NAND-Flash circuit transmits the data resources in the device's storage to the main chip U1, or the main chip U1 transmits the command signal to the TF card circuit, the TF card circuit transmits the data resources in the TF card to the main chip U1, and then the main chip U1 reads the received data resources and generates the final image, and then transmits it to the LCD circuit, so that the touch screen plays the final image. At the same time, the anti-freeze circuit prevents power noise from causing signal integrity failure when the screen is touched, thereby causing system deadlock. Attached Figure Description

[0014] Figure 1 This is a circuit diagram of the RFID device structure according to an embodiment of the present invention; Figure 2 This is a circuit diagram of the main chip U1 in an embodiment of this utility model; Figure 3 This is a circuit diagram of the TF card circuit and the anti-jamming circuit of this utility model embodiment; Figure 4 This is a circuit diagram of the LCD circuit according to an embodiment of the present invention; Figure 5 This is a circuit diagram of the TP circuit according to an embodiment of this utility model; Figure 6 This is a circuit diagram of the NAND-Flash circuit according to an embodiment of this utility model.

[0015] Reference numerals: 1 Device body, 2 Extension rod, 3 Reading antenna, 4 Touch screen. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.

[0017] Examples of embodiments of this utility model Figures 1 to 6As shown, an RFID data acquisition device with an integrated touchscreen includes a device body 1, an extension rod 2, a reading antenna 3, and a touchscreen 4. The data acquisition device also includes a touchscreen circuit mounted on the device body 1. The touchscreen 4 and the device body 1 are electrically connected via the touchscreen circuit. The touchscreen circuit includes a main chip U1 connected to an RFID circuit (a common existing circuit). The main chip U1 is connected to an LCD circuit, a TP circuit, and a NAND-Flash circuit. The NAND-Flash circuit is connected to the device's memory. The main chip U1 is also connected to a TF card circuit, which includes an anti-freeze circuit to prevent system crashes when the screen is touched.

[0018] The touchscreen displays images via the LCD circuit. The TP circuit detects the user's finger touch position and transmits the touch signal to the main chip U1. The main chip U1 transmits a command signal to the NAND-Flash circuit, which then transmits data resources from the device's storage to the main chip U1. Alternatively, the main chip U1 transmits a command signal to the TF card circuit, which transmits data resources from the TF card to the main chip U1. Subsequently, the main chip U1 reads the received data resources, generates the final image, and transmits it to the LCD circuit, thus allowing the touchscreen 4 to play the final image. At the same time, an anti-freeze circuit prevents power supply noise during screen touch from causing signal integrity failure and thus triggering system deadlock.

[0019] Further improvements, such as Figure 3 As shown, the TF card circuit includes a TF card slot, which is connected to an anti-jamming circuit. Pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 of the TF card slot are all connected to a first resistor with a specification of 22Ω. The first resistors are all connected to the main chip U1. Pin VDD of the TF card slot is connected to the power supply and a capacitor C3 is connected in parallel. The capacitor C3 is grounded. Pin C / D of the TF card slot is connected to the main chip U1. The TF card slot is grounded.

[0020] Further improvements, such as Figure 3As shown, the anti-jamming circuit includes multiple second resistors, each with a specification of 10K. Each of the TF card slot's pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 is connected to a second resistor between itself and its corresponding first resistor. All second resistors are connected to the power supply. When the screen backlight and driving circuit are activated, they draw a large current from the system power supply, causing a momentary drop and fluctuation in the power supply voltage (i.e., ripple noise). This noise is coupled to the adjacent, sensitive clock signal line (SDCLK) through the power and ground lines. The second resistors improve the noise tolerance and driving capability of the clock signal line, making the rising edge of the clock steeper and cleaner. A clean rising edge can cross the logic decision threshold faster, reducing the time spent hovering near the threshold voltage and significantly reducing the probability of misjudgment due to noise interference. Simultaneously, since the signal on the clock signal line is stably pulled high, pulling it low requires stronger interference energy, which effectively improves the signal's immunity to negative noise.

[0021] Further improvements, such as Figure 4 As shown, the LCD circuit includes a connector J2 connected to the main chip U1. The connector J2 is grounded. A third resistor with a specification of 10R is connected to the LEDK pin of the connector J2. The third resistor is connected to a transistor Q3. The third resistor is connected to the collector of the transistor Q3. The emitter of the transistor Q3 is grounded. A fourth resistor and a fifth resistor with a specification of 10K and a specification of 1K are connected to the base of the transistor Q3. The fourth resistor is grounded. The fifth resistor is connected to the main chip U1.

[0022] Further improvements, such as Figure 4 As shown, the RESET pin of connector J2 is connected to a sixth resistor with an 0R rating. This sixth resistor is connected to the main chip U1. By placing an 0R sixth resistor on the path connecting the RESET pin to the main chip U1, the main chip U1 can be easily disconnected from the RESET pin of connector J2 simply by removing the sixth resistor with a soldering iron. This eliminates the possibility of a short circuit between the RESET pin and ground or power supply, facilitating the inspection of leakage or short circuits. It eliminates the need to cut the copper foil with a blade, avoiding damage to the circuit board. Furthermore, depending on design requirements, this 0R sixth resistor can be easily replaced with a resistor of other resistance values, or simply left unconnected to disconnect the connection without modifying the circuit board layout, thus improving design compatibility.

[0023] Further improvements, such as Figure 5As shown, the TP circuit includes connector J3, which is grounded. Pins SDA, SCL, INT, and RST of connector J3 are all connected to a seventh resistor with an OR rating. The seventh resistors are all connected to the main chip U1. Pins SDA and SCL of connector J3 are also connected to an eighth resistor with an 10K rating. The eighth resistors are connected to the power supply.

[0024] Further improvements, such as Figure 6 As shown, the NAND-Flash circuit includes a storage chip U9, which is grounded. The HOLD, CLK, DI, WP, DO, and CS pins of the storage chip U9 are all connected to the main chip U1. The HOLD and WP pins of the storage chip U9 are each connected to a ninth resistor, which is connected to the power supply. The VCC pin is connected to a capacitor C84 and is connected to the power supply. The capacitor C84 is grounded.

[0025] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An RFID data acquisition device with an integrated touchscreen, comprising a device body, characterized in that, The device body is equipped with an extension rod; the extension rod is equipped with a reading antenna; the device body is equipped with a touch screen; the acquisition device also includes a touch screen circuit; the touch screen circuit is disposed on the device body; the touch screen and the device body are electrically connected through the touch screen circuit; the touch screen circuit includes a main chip U1, the main chip U1 is connected to an LCD circuit, a TP circuit and a NAND-Flash circuit; the NAND-Flash circuit is connected to the device's storage; the main chip U1 is also connected to a TF card circuit; the TF card circuit is connected to an anti-freeze circuit to prevent the system from freezing when the screen is touched.

2. The RFID data acquisition device with integrated touchscreen according to claim 1, characterized in that, The TF card circuit includes a TF card slot; the TF card slot is connected to an anti-jamming circuit; pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 of the TF card slot are all connected to a first resistor; the first resistors are all connected to the main chip U1; pin VDD of the TF card slot is connected to the power supply and a capacitor C3 is connected in parallel; the capacitor C3 is grounded; pins C / D of the TF card slot are connected to the main chip U1; the TF card slot is grounded.

3. The RFID data acquisition device with integrated touchscreen according to claim 2, characterized in that, The anti-jamming circuit includes multiple second resistors; each of the TF card slot's pins DAT2, DAT3, CMD, CLK, DAT0, and DAT1 is connected to a second resistor between itself and the corresponding first resistor; all of the multiple second resistors are connected to a power supply.

4. The RFID data acquisition device with integrated touchscreen according to claim 1, characterized in that, The LCD circuit includes a connector J2 connected to the main chip U1; the connector J2 is grounded; a third resistor is connected to the LEDK pin of the connector J2; the third resistor is connected to a transistor Q3; the third resistor is connected to the collector of the transistor Q3; the emitter of the transistor Q3 is grounded; a fourth resistor and a fifth resistor are connected to the base of the transistor Q3; the fourth resistor is grounded; and the fifth resistor is connected to the main chip U1.

5. An RFID data acquisition device with an integrated touchscreen according to claim 4, characterized in that, The RESET pin of connector J2 is connected to a sixth resistor; the sixth resistor is connected to the main chip U1.

6. The RFID data acquisition device with integrated touchscreen according to claim 1, characterized in that, The TP circuit includes connector J3; connector J3 is grounded; pins SDA, SCL, INT and RST of connector J3 are all connected to a seventh resistor; the seventh resistors are all connected to the main chip U1; the seventh resistors connected to pins SDA and SCL of connector J3 are also connected to an eighth resistor; the eighth resistors are connected to the power supply.

7. The RFID data acquisition device with integrated touch screen according to claim 1, characterized in that, The NAND-Flash circuit includes a storage chip U9; the storage chip U9 is grounded; the HOLD, CLK, DI, WP, DO and CS pins of the storage chip U9 are all connected to the main chip U1; the HOLD and WP pins of the storage chip U9 are each connected to a ninth resistor; the ninth resistor is connected to the power supply; the VCC pin is connected to a capacitor C84 and is connected to the power supply; the capacitor C84 is grounded.

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