Voltage and current collector with display screen and WiFi function

Abstract

The utility model discloses a voltage and current collector with a display screen and a WiFi function, which comprises a voltage and current collection module, an LCD display screen, a reset key, an IO interface, a power supply switch, an impeller switch, a menu key and a buzzer. The voltage and current acquisition module comprises a WiFi unit, the WiFi unit is used for being connected with a WiFi signal, the voltage and current acquisition module is respectively connected with an LCD display screen, a reset key, an IO interface, a power supply switch, a pulsator switch, a menu key and a buzzer, the pulsator switch and the menu key are used for adjusting display data of the LCD display screen, and the reset key is used for resetting the display data of the LCD display screen. According to the scheme of the utility model, the device is small in size, is convenient to carry, can achieve the real-time display of an electric waveform trend chart of collected voltage and current data, and can also upload the collected data to a cloud database.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of voltage current collection, especially with display screen and voltage current collection ware with WiFi function. BACKGROUND

[0002] The desktop digital multimeter is a multifunctional and multi-range measuring instrument, which can generally measure direct current, direct voltage and the like. The current desktop digital multimeter comprises a shell and a main display screen, which can directly display the reading of measurement data, but still has the following shortcomings:

[0003] The voltage current collection device is large in size, although it can be moved at will, but needs AC power supply for power supply to be used. And the measurement reading and the power supply curve value can be saved, but the data cannot be uploaded to the cloud database for saving. However, other handheld multimeters can be moved at will, but cannot view the real-time discharge waveform trend graph or power supply waveform trend graph in measurement. Therefore, aiming at the problems of the current voltage current collection device that is too large in size, cannot upload cloud data and view the real-time electric waveform trend graph, a new technology is needed to solve the current problems. SUMMARY

[0004] The main purpose of the utility model is to provide a voltage current collection ware with display screen and WiFi function, which aims to solve the technical problems of the current voltage current collection device that is too large in size, cannot upload cloud data and view the real-time electric waveform trend graph.

[0005] To achieve the above-mentioned purpose, the voltage current collection ware with display screen and WiFi function provided by the utility model comprises:

[0006] A voltage current collection module, an LCD display screen, a reset button, an IO interface, a power supply switch, a wave wheel switch, a menu button and a buzzer.

[0007] The voltage current collection module comprises a WiFi unit, which is used for connecting a WiFi signal, and is connected with the LCD display screen, the reset button, the IO interface, the power supply switch, the wave wheel switch, the menu button and the buzzer, wherein the wave wheel switch and the menu button are used for adjusting the display data of the LCD display screen, and the reset button is used for resetting the display data of the LCD display screen.

[0008] Optionally, in the first implementation manner, the voltage current collection module comprises an ESP32-S3 model chip.

[0009] Optionally, in the second implementation mode, the voltage and current acquisition module further comprises a FLASH storage unit, and the FLASH storage unit is configured to acquire voltage and current data.

[0010] Optionally, in the third implementation mode, a GPIO37 pin of the ESP32-S3 model chip is connected to an SPI_DQS pin of the FLASH storage unit, a GPIO36 pin of the ESP32-S3 model chip is connected to an IO7 pin of the FLASH storage unit, a GPIO35 pin of the ESP32-S3 model chip is connected to an IO6 pin of the FLASH storage unit, a GPIO34 pin of the ESP32-S3 model chip is connected to an IO5 pin of the FLASH storage unit, a GPIO33 pin of the ESP32-S3 model chip is connected to an IO4 pin of the FLASH storage unit, a SPI D pin of the ESP32-S3 model chip is connected to an SI pin of the FLASH storage unit, a SPI Q pin of the ESP32-S3 model chip is connected to an SO pin of the FLASH storage unit, a SPI CLK pin of the ESP32-S3 model chip is connected to an SCLK pin of the FLASH storage unit, a SPI CS0 pin of the ESP32-S3 model chip is connected to a CS# pin of the FLASH storage unit, a SPI CWP pin of the ESP32-S3 model chip is connected to an IO2 pin of the FLASH storage unit, and a SPI CHD pin of the ESP32-S3 model chip is connected to an IO3 pin of the FLASH storage unit.

[0011] Optionally, in the fourth implementation mode, a VDD3P3 pin of the ESP32-S3 model chip is connected to one end of a first inductor, and the other end of the first inductor is connected to the power supply switch.

[0012] Optionally, in the fifth implementation mode, a LAN IN pin of the ESP32-S3 model chip is connected to the IO interface.

[0013] Optionally, in the sixth implementation mode, the IO interface is respectively connected to one end of a second inductor and one end of a third inductor.

[0014] Optionally, in the seventh implementation mode, the other end of the second inductor is connected to a LAN IN pin of the ESP32-S3 model chip.

[0015] Optionally, in the eighth implementation mode, the other end of the third inductor is connected to a first capacitor, and the first capacitor is grounded.

[0016] Optionally, in the ninth implementation, one end of the second inductor is connected to a second capacitor, and the other end of the second inductor is connected to a third capacitor, and the second capacitor and the third capacitor are grounded.

[0017] In the embodiment of the utility model, through the voltage current acquisition module inside integrated WiFi unit, with WiFi unit connection cloud database will measure data upload to cloud database, voltage current acquisition module and LCD display screen, reset button, IO interface, power supply switch, impeller switch, menu button, buzzer connection integrated display screen, through impeller switch, menu button realize the control to display screen, through reset button realize the reset to display screen, not only small volume convenient to carry still can realize to the real time display electric wave form trend chart of voltage current data collection, solved the current voltage current acquisition equipment's volume is too big, cannot upload cloud data and real time view electric wave form trend chart technical problem. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to the structure shown in these drawings.

[0019] Figure 1 It is a structural schematic diagram of the voltage current collector with display screen and WiFi function of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the voltage current collector with display screen and WiFi function of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the ESP32-S3 model chip of the utility model;

[0022] Figure 4 It is a pin connection schematic diagram of the ESP32-S3 model chip and FLASH storage unit of the utility model.

[0023] The realization of the utility model, functional characteristics and advantages will be further described with reference to the drawings combined with the embodiment. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0025] It should be noted that if the embodiments of the present utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0026] In addition, if the embodiments of the present utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present utility model.

[0027] The present utility model provides a voltage current collector with display screen and WiFi function.

[0028] In the embodiments of the present utility model, as shown in the drawings, Figure 1 Figure 1 It is a structural schematic view of the voltage current collector with display screen and WiFi function, the voltage current collector with display screen and WiFi module includes:

[0029] ​Voltage current acquisition module 10, LCD display screen 20, reset button 30, IO interface 40, power supply switch 50, impeller switch 60, menu button 70, buzzer 80;The voltage current acquisition module 10 includes: WiFi unit 101, the WiFi unit 101 is used to connect WiFi signal, the voltage current acquisition module 10 is connected LCD display screen 20, reset button 30, IO interface 40, power supply switch 50, impeller switch 60, menu button 70, buzzer 80 respectively, wherein, the impeller switch 60, the menu button 70 are used to adjust the display data of LCD display screen 20, and the reset button 30 is used to reset the display data of LCD display screen 20.

[0030] Please refer to Figure 2 , Figure 2 It is a structural embodiment schematic view of the voltage current acquisition device with display screen and WiFi function.The input voltage power supply range is 5V-24V / 5A, the output voltage power supply range and the measurement range are 5V-24V / 5A, in addition to USB power supply, a plug-in power supply end is provided for power supply, when going out, a mobile power supply can be used for power supply, in addition to USB interface output, a plug-in terminal is provided for output power supply, when power-on, the buzzer responds to two sounds, the LCD display screen initializes to display the product name, enters the Menu interface, and has four function options: power monitoring, waveform trend, file storage, function setting, etc., the impeller switch is rotated left and right to switch the Menu interface, the impeller switch is pressed to enter the selected Menu interface, and the reset button is pressed once to reset to the equipment initialization state.The power monitoring interface can realize real-time viewing of voltage, current and power parameters, when entering the waveform trend interface, the waveform starts to record by clicking the impeller switch, the waveform trend can view the voltage and current curves, the voltage and current values can be viewed by sliding the curve, the current waveform curve needs to be set to record the curve time, the recorded waveform is automatically saved in the equipment, the voltage current acquisition module has 8MB-FLASH storage, in addition to storing the factory equipment engineering code in the FLASH, the waveform trend recording file storage is in the FLASH, after recording is completed and saved, the interface is jumped, it is prompted to open the current recording curve, or the recorded waveform curve is uploaded to the cloud data storage, when uploading the file, the WiFi connection needs to be matched in advance in the setting interface to upload, when not needed, it can be deleted, after the network scanning code connection is uploaded, the equipment interface two-dimensional code is scanned, the equipment waveform curve is read, the waveform trend can also be viewed by connecting the computer, and the real-time recorded voltage and current values, wherein the data acquisition is collected by INA226 chip, the setting interface can realize equipment upgrading, start-up interface animation adjustment, language selection, currently only three languages are supported, English, Chinese and Japanese, in addition to this, the equipment calibration and network connection are provided.

[0031] Please refer to Figure 3 , Figure 3 It is a structural schematic view of the ESP32-S3 model chip of the utility model. The voltage and current acquisition module comprises: an ESP32-S3 model chip. The voltage and current acquisition module further comprises: a FLASH storage unit, which is used for collecting voltage and current data.

[0032] One end of the first inductor L1 is connected to the VDD3P3 pin of the ESP32-S3 model chip, the other end of the first inductor L1 is connected to VDD33, and a power supply switch is arranged at VDD33. The LAN_IN pin of the ESP32-S3 model chip is connected to the IO interface (ANT PCB), and the IO interface (ANT PCB) is respectively connected to one end of the second inductor L2 and one end of the third inductor L3. The other end of the second inductor L2 is connected to the LAN_IN pin of the ESP32-S3 model chip. The other end of the third inductor L3 is connected to the first capacitor C5, and the first capacitor C5 is grounded. One end of the second inductor L2 is connected to the second capacitor C11, and the other end of the second inductor L2 is connected to the third capacitor C12, and the second capacitor C11 and the third capacitor C12 are both grounded.

[0033] Please refer to Figure 4 , Figure 4The pin connection schematic view of the ESP32-S3 model chip and the FLASH storage unit, the GPIO37 pin of the ESP32-S3 model chip is connected with the SPI_DQS pin of the FLASH storage unit, the GPIO36 pin of the ESP32-S3 model chip is connected with the IO7 pin of the FLASH storage unit, the GPIO35 pin of the ESP32-S3 model chip is connected with the IO6 pin of the FLASH storage unit, the GPIO34 pin of the ESP32-S3 model chip is connected with the IO5 pin of the FLASH storage unit, the GPIO33 pin of the ESP32-S3 model chip is connected with the IO4 pin of the FLASH storage unit, the SPI D pin of the ESP32-S3 model chip is connected with the SI pin of the FLASH storage unit, the SPI Q pin of the ESP32-S3 model chip is connected with the SO pin of the FLASH storage unit, the SPI CLK pin of the ESP32-S3 model chip is connected with the SCLK pin of the FLASH storage unit, the SPI CS0 pin of the ESP32-S3 model chip is connected with the CS# pin of the FLASH storage unit, the SPI CWP pin of the ESP32-S3 model chip is connected with the IO2 pin of the FLASH storage unit, and the SPI CHD pin of the ESP32-S3 model chip is connected with the IO3 pin of the FLASH storage unit.

[0034] The pin connection of the ESP32-S3 model chip and the LCD screen needs to be determined according to the model of the LCD screen, and the 8MB model of the LCD screen is taken as an example, the SPICLK, SPICS1, SPID, SPIQ, SPIWP, SPIHD, GPIO33, GPIO34, GPIO35, GPIO36 and GPIO37 pins of the ESP32-S3 model chip are respectively connected with the CLK, CE#, DQ0, DQ1, DQ2, DQ3, DQ4, DQ5, DQ6, DQ7 and DQS / DM pins of the LCD screen.

[0035] The utility model discloses a collector with expansion interface, supports I2C and GPIO connection, firmware OTA function, current, voltage detection module uses 10mOmega and 1mOmega sampling resistance series in output loop to be used to convert output current into voltage signal in this patent, and the acquisition chip INA226 is the current shunt / power monitor with I2C or SMBUS compatible interface. It will measure the voltage on the sampling resistor, and after the internal PGA conditioning amplification, it is converted into digital quantity by the internal 16-bit AD converter for the host chip to read. The host chip ESP32-S3 reads the corresponding data of the two INA226 chips on the sampling circuit through the I2C digital bus, realizes range switching through the isolation circuit control bypass MOS, and the data is displayed on the LCD screen of the device through the state interface or the curve chart after the operation of the host chip, for the user to observe.

[0036] In the utility model embodiment, through the voltage current acquisition module internal integration WiFi unit, utilize WiFi unit connection cloud database to measure data is uploaded to the cloud database, voltage current acquisition module and LCD display screen, reset button, IO interface, power supply switch, wave wheel switch, menu button, buzzer connection integrated display screen, realize the control to display screen through wave wheel switch, menu button, realize the reset of display screen through reset button, not only small volume convenient to carry can realize the real time display electric wave form tendency diagram to the collection voltage current data, solved the current voltage current's collection equipment's volume is too big, cannot upload cloud data and the technical problem of real time viewing electric wave form tendency diagram.

[0037] The above is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure transformation made under the inventive concept of the utility model, or direct / indirect application in other related technical fields includes in the patent protection range of the utility model.

Claims

1. A voltage and current collector with a display screen and WiFi function, characterized in that, The voltage and current collector with a display screen and a WiFi module comprises: a voltage and current collection module, an LCD display screen, a reset button, an IO interface, a power supply switch, a wave wheel switch, a menu button, and a buzzer; The voltage and current collection module comprises a WiFi unit for connecting a WiFi signal, and is connected to the LCD display screen, the reset button, the IO interface, the power supply switch, the wave wheel switch, the menu button, and the buzzer.

2. The voltage and current collector with display screen and WiFi function according to claim 1, characterized in that, The voltage and current collection module comprises an ESP32-S3 model chip.

3. The voltage and current collector with display screen and WiFi function according to claim 2, characterized in that, The voltage and current collection module further comprises a FLASH storage unit for collecting voltage and current data.

4. The voltage and current collector with display screen and WiFi function according to claim 3, characterized in that, The GPIO37 pin of the ESP32-S3 model chip is connected to the SPI_DQS pin of the FLASH storage unit, the GPIO36 pin of the ESP32-S3 model chip is connected to the IO7 pin of the FLASH storage unit, the GPIO35 pin of the ESP32-S3 model chip is connected to the IO6 pin of the FLASH storage unit, the GPIO34 pin of the ESP32-S3 model chip is connected to the IO5 pin of the FLASH storage unit, the GPIO33 pin of the ESP32-S3 model chip is connected to the IO4 pin of the FLASH storage unit, the SPI D pin of the ESP32-S3 model chip is connected to the SI pin of the FLASH storage unit, the SPI Q pin of the ESP32-S3 model chip is connected to the SO pin of the FLASH storage unit, the SPI CLK pin of the ESP32-S3 model chip is connected to the SCLK pin of the FLASH storage unit, the SPI CS0 pin of the ESP32-S3 model chip is connected to the CS# pin of the FLASH storage unit, the SPI CWP pin of the ESP32-S3 model chip is connected to the IO2 pin of the FLASH storage unit, and the SPI CHD pin of the ESP32-S3 model chip is connected to the IO3 pin of the FLASH storage unit.

5. The voltage and current collector with display screen and WiFi function according to claim 2, characterized in that, The VDD3P3 pin of the ESP32-S3 model chip is connected to one end of a first inductor, and the other end of the first inductor is connected to the power supply switch.

6. The voltage and current collector with display screen and WiFi function according to claim 2, characterized in that, The LAN_IN pin of the ESP32-S3 model chip is connected to the IO interface.

7. The voltage and current collector with display screen and WiFi function according to claim 6, characterized in that, The IO interface is connected to one end of a second inductor and one end of a third inductor.

8. The voltage and current collector with display screen and WiFi function according to claim 7, characterized in that, The other end of the second inductor is connected to the LAN_IN pin of the ESP32-S3 model chip.

9. The voltage and current collector with display screen and WiFi function according to claim 1, characterized in that, The other end of the third inductor is connected to a first capacitor, and the first capacitor is grounded.

10. The voltage and current collector with display screen and WiFi function according to claim 1, characterized in that, One end of the second inductor is connected to a second capacitor, and the other end of the second inductor is connected to a third capacitor, and the second capacitor and the third capacitor are both grounded.

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