CN212363292U

CN212363292U - Soil detection device based on RFID

Info

Publication number: CN212363292U
Application number: CN202021234642.5U
Authority: CN
Inventors: 王相; 王志馨; 王钟轩
Original assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Current assignee: Weihai Jingxun Changtong Electronic Technology Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-15
Anticipated expiration: 2030-06-29

Abstract

The utility model provides a pair of soil detection device based on RFID, include: hand-held type terminal and soil sensor module, hand-held type terminal includes the organism, and the organism openly is equipped with display screen and film keyboard, and the organism bottom is equipped with data interface connector, is equipped with main control chip, read-write card chip, 485 interface chips, the interface that charges, battery and charging circuit in the organism. The utility model discloses can communicate through the wireless radio frequency mode between the IC-card label in the soil detection region, the hand-held type terminal reads the regional serial number information of the interior storage of IC-card label. The handheld terminal can read the detection data in the soil sensor module, can record single-point data, and can also collect data within a set time period.

Description

Soil detection device based on RFID

Technical Field

The utility model relates to a soil detection technology field, more specifically the soil detection device based on RFID that says so relates to.

Background

Soil detection is an important work in modern agricultural production, and soil moisture content, nutrient content, pH value, pollution condition and other soil quality related data of soil can be known through soil detection. The data obtained from soil testing are all crucial to agricultural production.

At present, a soil sensor is generally used for collecting soil related data during soil detection, and the data reading mode of the soil sensor comprises a wired connection mode for reading data through a computer, a wireless connection mode for reading data through a platform, a sensor connection mode for directly reading data through a display screen and the like. The data is read through a computer in a wired connection mode and read through a platform in a wireless connection mode, so that the data can be read in real time and monitoring is facilitated, but the wired connection network cable is densely laid and is inconvenient to use in a large range; wireless equipment is needed for wireless connection, the flow is consumed, and the manufacturing cost is high; the sensor is connected with the display screen to directly read data, manual copying is needed, and the use in a large area is inconvenient.

Moreover, soil detection is usually performed in a wide area of management, real-time monitoring is not required, and data can be acquired in a required time period to meet the requirement.

Based on this, how to record soil data in a required time period without manual recording is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

To the above problem, an object of the utility model is to provide a soil detection device based on RFID.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme: an RFID-based soil detection device, comprising: hand-held type terminal and soil sensor module, the hand-held type terminal includes the organism, and the organism openly is equipped with display screen and film keyboard, and the organism bottom is equipped with data interface connector, is equipped with main control chip, reads and writes card chip, 485 interface chip in the organism, the interface that charges, battery and charging circuit, main control chip respectively with read and write card chip, charging circuit, battery, 485 interface chip are connected, and 485 interface chip passes through data interface connector and soil sensor module data connection, and the battery passes through charging circuit and the interface connection that charges.

Further, the charging circuit includes: the power supply circuit comprises a power supply chip U3, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R7, a resistor R41, a resistor R42, a capacitor C7, a capacitor C8, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C15, an inductor L2 and a diode D3;

one pin of the power chip U3 is connected with sixteen pins of the power chip U3, a charging interface, one end of a capacitor C7 and one end of a capacitor C8 respectively, two pins of the power chip U3 are connected with three pins of the power chip U3, one end of an inductor L2 and a cathode of a diode D3 respectively, four pins of the power chip U3 are connected with five pins of the power chip U3 and the charging interface respectively, and the other end of the capacitor C7, the other end of the capacitor C8 and an anode of the diode D3 are grounded respectively; the seven pin of the power chip U3 is grounded, the eight pin of the power chip U3 is respectively connected with one end of a capacitor C13, one end of a capacitor C15, one end of a resistor R7 and the other end of an inductor L2, and the other end of a resistor R7 is connected with a battery; the nine pins of the power chip U3 are respectively connected with one end of a capacitor C11, one end of a capacitor C12 and a battery, and the other end of the capacitor C11, the other end of the capacitor C12, the other end of the capacitor C13 and the other end of the capacitor C15 are respectively grounded; the eleven pins of the power chip U3 are respectively connected with one end of the capacitor C10 and the thirteen pins of the power chip U3, and the eleven pins of the power chip U3, the twelve pins of the power chip U3 and the other end of the capacitor C10 are respectively grounded;

fourteen pins of the power chip U3 are connected with one end of a resistor R4, one end of a resistor R42 and one end of a resistor R2 respectively, fifteen pins of the power chip U3 are connected with one end of a resistor R3, one end of a resistor R41 and one end of a resistor R1 respectively, the other end of the resistor R1 is connected with the other end of a resistor R2 and a charging interface respectively, the other end of the resistor R41 and the other end of the resistor R42 are grounded respectively, and the other end of the resistor R3 and the other end of the resistor R4 are connected with the main control chip respectively.

Furthermore, a 4G network chip is arranged in the machine body, and the 4G network chip is connected with the main control chip.

Further, a buzzer is further arranged on the machine body and connected with the main control chip.

Further, the data interface connector adopts a DB9 data interface connector.

Further, the main control chip adopts a single chip microcomputer with the model of STM32F103RCT6, and the read-write card chip adopts an RC522 non-contact read-write card chip.

Further, the power supply chip adopts a TP5100 power supply chip.

Further, the soil sensor module adopts a 485 sensor, and the soil sensor module comprises a combination of any one or more of a soil conductivity sensor, a soil temperature sensor, a soil humidity sensor, a soil pH value sensor and a soil EC value sensor.

Contrast prior art, the utility model discloses beneficial effect lies in:

1. the utility model discloses a communicate through Radio Frequency (RFID) mode between the IC-card label in hand-held type terminal and the soil detection region, the hand-held type terminal reads the regional serial number information of the interior storage of IC-card label. The handheld terminal is connected with the soil sensor module through the D-type data interface connector, a standard 485 communication protocol is adopted, the handheld terminal can read detection data in the soil sensor module, single-point data recording can be carried out, and data acquisition in a specified time period can be carried out at a set time. Data collection within a specified time period may set the interval time. The utility model discloses both can not only take notes soil data in the time quantum of needs, do not need the manual transcription again, improved soil data acquisition's convenience.

2. The utility model discloses a charging circuit adopts the TP5100 chip, adopts 12V to charge for 8.4V battery, is equipped with the high-low level signal feedback pin that is charging and is full of the electricity. The battery protection circuit has the functions of reverse connection protection and short circuit protection of the battery and temperature protection of the battery.

3. The utility model discloses a hand-held type terminal is connected with soil sensor module through 485 sensor device, with the data transmission screen on, wherein 485's instruction can freely set up in the equipment function fence of equipment, conveniently reads various data. Meanwhile, the time, the brightness of backlight, automatic on-off, backlight dormancy and unit setting can be carried out.

4. The utility model discloses have the function of 4G free network, can carry out the transmission of data to the platform through 4G, can set up IP and port and report time interval in setting up the interface simultaneously, make equipment in fixed time interval, pass to self-defined IP and port with data.

Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an electrical block diagram of the present invention;

fig. 3 is a circuit configuration diagram of the charging circuit of the present invention.

In the drawings, each reference numeral denotes:

1. a hand-held terminal; 2. a soil sensor module; 3. a display screen; 4. a membrane keypad; 5. a data interface connector.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.

An RFID-based soil detection device as shown in fig. 1, comprising: hand-held type terminal 1 and soil sensor module 2, hand-held type terminal 1 includes the organism, and the organism openly is equipped with display screen 3 and film keyboard 4, and the organism bottom is equipped with data interface connector 5.

The main control chip is connected with the read-write card chip, the charging circuit, the battery, the 485 interface chip and the buzzer respectively, the 485 interface chip is in data connection with the soil sensor module through the data interface connector, and the battery is connected with the charging interface through the charging circuit.

As shown in fig. 3, the charging circuit includes: the power supply circuit comprises a power supply chip U3, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R7, a resistor R41, a resistor R42, a capacitor C7, a capacitor C8, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C15, an inductor L2 and a diode D3; one pin of the power chip U3 is connected with sixteen pins of the power chip U3, a charging interface, one end of a capacitor C7 and one end of a capacitor C8 respectively, two pins of the power chip U3 are connected with three pins of the power chip U3, one end of an inductor L2 and a cathode of a diode D3 respectively, four pins of the power chip U3 are connected with five pins of the power chip U3 and the charging interface respectively, and the other end of the capacitor C7, the other end of the capacitor C8 and an anode of the diode D3 are grounded respectively; the seven pin of the power chip U3 is grounded, the eight pin of the power chip U3 is respectively connected with one end of a capacitor C13, one end of a capacitor C15, one end of a resistor R7 and the other end of an inductor L2, and the other end of a resistor R7 is connected with a battery; the nine pins of the power chip U3 are respectively connected with one end of a capacitor C11, one end of a capacitor C12 and a battery, and the other end of the capacitor C11, the other end of the capacitor C12, the other end of the capacitor C13 and the other end of the capacitor C15 are respectively grounded; the eleven pins of the power chip U3 are respectively connected with one end of the capacitor C10 and the thirteen pins of the power chip U3, and the eleven pins of the power chip U3, the twelve pins of the power chip U3 and the other end of the capacitor C10 are respectively grounded; fourteen pins of the power chip U3 are connected with one end of a resistor R4, one end of a resistor R42 and one end of a resistor R2 respectively, fifteen pins of the power chip U3 are connected with one end of a resistor R3, one end of a resistor R41 and one end of a resistor R1 respectively, the other end of the resistor R1 is connected with the other end of a resistor R2 and a charging interface respectively, the other end of the resistor R41 and the other end of the resistor R42 are grounded respectively, and the other end of the resistor R3 and the other end of the resistor R4 are connected with the main control chip respectively.

The data interface connector adopts a DB9 data interface connector. The main control chip adopts a single chip microcomputer with the model number of STM32F103RCT6, and the read-write card chip adopts an RC522 non-contact read-write card chip. The power supply chip adopts a TP5100 power supply chip. The soil sensor module adopts a 485 sensor and comprises a combination of any one or more of a soil conductivity sensor, a soil temperature sensor, a soil humidity sensor, a soil PH value sensor and a soil EC value sensor. Such as: a soil conductivity temperature and humidity three-in-one sensor and a soil conductivity temperature and humidity PH value EC value five-in-one sensor can be adopted.

In the embodiment, the RC522 chip is adopted, the IC card can be identified, data communication is carried out between the IC card and the single chip microcomputer STM32F103RCT6, two paths of common IO are adopted for communication, high and low levels are collected and shifted to form a 16-system number, and therefore a corresponding equipment number is obtained. Because each soil detection area is provided with a fixed IC card tag, the soil detection device provided by the embodiment can identify the current card number by directly swiping the card, the buzzer can make a sound, and at the moment, when data recording is needed, the corresponding card number and Chinese name can be stored at the same time, so that different data in different areas can be stored in a distinguished manner.

The ID number can be freely set corresponding to the Chinese name, the ID can be read from the equipment through a homemade upper computer script, the Chinese name can be input after the corresponding ID, then the Chinese name is written in by clicking, the soil detection device provided by the embodiment can permanently record the Chinese name corresponding to the ID, and except that the name corresponding to the current ID is manually cleared, or the Chinese name is reconfigured again through the upper computer script. The ID number is printed and stored next time, the corresponding Chinese name will automatically follow the stored data.

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or 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 defined in the present application.

Claims

1. An RFID-based soil detection device, comprising: hand-held type terminal and soil sensor module, the hand-held type terminal includes the organism, and the organism openly is equipped with display screen and film keyboard, and the organism bottom is equipped with data interface connector, is equipped with main control chip, reads and writes card chip, 485 interface chip in the organism, the interface that charges, battery and charging circuit, main control chip respectively with read and write card chip, charging circuit, battery, 485 interface chip are connected, and 485 interface chip passes through data interface connector and soil sensor module data connection, and the battery passes through charging circuit and the interface connection that charges.

2. The RFID-based soil detection device of claim 1, wherein the charging circuit comprises: the power supply circuit comprises a power supply chip U3, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R7, a resistor R41, a resistor R42, a capacitor C7, a capacitor C8, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C15, an inductor L2 and a diode D3;

3. The RFID-based soil detection device of claim 1, wherein: and a 4G network chip is also arranged in the machine body, and the 4G network chip is connected with the main control chip.

4. The RFID-based soil detection device of claim 1, wherein: still be equipped with bee calling organ on the organism, bee calling organ is connected with main control chip.

5. The RFID-based soil detection device of claim 1, wherein the data interface connector employs a DB9 data interface connector.

6. The RFID-based soil detection device of claim 1, wherein the main control chip is a single chip microcomputer with a model number of STM32F103RCT6, and the read-write card chip is an RC522 non-contact read-write card chip.

7. The RFID-based soil detection device of claim 2, wherein the power chip is a TP5100 power chip.

8. The RFID-based soil detection device of claim 1, wherein the soil sensor module employs a 485 sensor, and the soil sensor module comprises any one or more of a soil conductivity sensor, a soil temperature sensor, a soil humidity sensor, a soil PH sensor, and a soil EC sensor in combination.