Battery voltage and current consumption monitoring and recording device

Abstract

The utility model provides a battery voltage and current consumption monitoring and recording device, which solves the problems of battery abnormal state detection and the like and comprises a main control unit connected with a voltage sampling module, a current sampling module, a display module and a key module. The main control unit is connected with a TypeC communication module and a power supply module, and the main control unit is connected with a record storage module and a clock module. The device has the advantages of good detection effect, stable operation and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery detection, and specifically relates to a battery voltage and current consumption monitoring and recording device. Background Art

[0002] Batteries are common portable charging and discharging devices in electric meters. They are not only portable, stable, and have a long life, but also have the advantages of low cost and easy manufacturing. However, the current, voltage, and power generated by batteries may fluctuate greatly, causing damage to electronic devices and eventually causing partial functional failure of electronic equipment. Manual measurement not only lacks accuracy, but is also labor-intensive.

[0003] This device is a battery voltage and current monitoring device, which has solved the problems of large deviation in accuracy of manual measurement in the prior art, low measurement frequency of voltage, current and power, inability to clearly reflect real-time performance, and inability to effectively record abnormal data in measurement. It also solves the problems of poor manual effect and low efficiency, and poor consistency of repeatable test methods. The battery voltage and current monitoring device uses wavelet transform to obtain abnormal signals in the high-frequency part of voltage, current and frequency, and records the changes in voltage, current and frequency during this time period, and then uses thresholds to judge abnormal data in voltage, current and power, and records them. This helps save labor costs and improve detection efficiency and quality. Summary of the invention

[0004] The purpose of the utility model is to provide a battery voltage and current consumption monitoring and recording device with reasonable design and good current and voltage detection effect in view of the above problems.

[0005] To achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a battery voltage and current consumption monitoring and recording device, including a main control unit, the main control unit is connected to a voltage sampling module and a current sampling module, the main control unit is connected to a display module and a button module, the main control unit is connected to a Type C communication module and a power supply module, and the main control unit is connected to a recording storage module and a clock module.

[0006] In the above-mentioned battery voltage and current consumption monitoring and recording device, the main control unit uses the HT6017 model MCU module IC6.

[0007] In the above-mentioned battery voltage and current consumption monitoring and recording device, the recording storage module includes a FLASH storage chip IC4 and a FLASH storage chip IC15 connected to the MCU module IC6, and the MCU module IC6 is equipped with an EEPROM storage chip IC5.

[0008] In the above-mentioned battery voltage and current consumption monitoring and recording device, the Type C communication module includes a CP2102 serial port chip IC2 and a π121 isolation chip IC3. The serial port chip IC2 and the isolation chip IC3 are equipped with a TYPE-C-16P interface USB1.

[0009] In the above-mentioned battery voltage and current consumption monitoring and recording device, the display module includes an LCD chip IC1 and a dot matrix display screen, and the LCD chip IC1 is equipped with ESDA6V1W5 type suppression diodes D1-D4.

[0010] In the above-mentioned battery voltage and current consumption monitoring and recording device, the button module includes button switches S1-S3, and the buttons S1-S3 are equipped with display lights LED2-LED4.

[0011] In the above-mentioned battery voltage and current consumption monitoring and recording device, the power module includes a power chip U1 in SOP-8 package, the power chip U1 is connected to a photocoupler U2, the power chip U1 is equipped with a 7805 / SMD model voltage regulator chip IC7 and a 2852K33 model voltage regulator chip IC8, the power chip U1 is equipped with a 7550 model voltage regulator chip IC11 and a voltage regulator chip IC16.

[0012] In the above-mentioned battery voltage and current consumption monitoring and recording device, the voltage sampling module includes a PI 131M61 model digital isolator U3 and an A124 model analog-to-digital conversion chip IC9.

[0013] In the above-mentioned battery voltage and current consumption monitoring and recording device, the current sampling module includes a PI 131M61 model digital isolator U4 and a digital isolator U5, the current sampling module has an A124 model analog-to-digital conversion chip IC12 and an analog-to-digital conversion chip IC14, and the current sampling module has an RS8524XQ model operational amplifier IC13.

[0014] In the above-mentioned battery voltage and current consumption monitoring and recording device, the main control unit adopts the Cortex-M0 core.

[0015] Compared with the existing technology, the advantages of the utility model are: wavelet transform is used to obtain the high-frequency abnormal signals of voltage, current and frequency and store and record them, so as to effectively improve the detection efficiency and detection quality; the current sampling module can automatically switch gears according to the detected current conditions to ensure the accuracy of current detection; a dot matrix method is used to display the fluctuation of battery current during the use of the device, so as to better help users find the problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the structural principle diagram of the utility model;

[0017] Figure 2 It is a circuit schematic diagram of the Type C communication module of the utility model;

[0018] Figure 3 It is a circuit schematic diagram of the display module and the key module of the utility model;

[0019] Figure 4 It is a circuit schematic diagram of the power module of the utility model;

[0020] Figure 5 It is a circuit schematic diagram of the voltage sampling module of the utility model;

[0021] Figure 6 It is a circuit schematic diagram of the current sampling module of the utility model;

[0022] Figure 7 It is a circuit schematic diagram of the main control unit of the utility model;

[0023] In the figure, there are a main control unit 1, a voltage sampling module 2, a current sampling module 3, a display module 4, a button module 5, a Type C communication module 6, a power module 7, a recording and storage module 8, and a clock module 9. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1-7 As shown, a battery voltage and current consumption monitoring and recording device includes a main control unit 1, the main control unit 1 is connected to a voltage sampling module 2 and a current sampling module 3, the main control unit 1 is connected to a display module 4 and a key module 5, the main control unit 1 is connected to a Type C communication module 6 and a power module 7, and the main control unit 1 is connected to a recording storage module 8 and a clock module 9. When the battery is working abnormally, the recording storage module 8 can automatically record the time of occurrence, the current, voltage, power, etc. that caused the abnormality, and can detect the voltage and current in real time to show the real-time changes of the data. This helps to save labor costs and improve detection efficiency and detection quality.

[0026] Specifically, the main control unit 1 uses the HT6017 model MCU module IC6, which is equipped with peripheral modules to provide a stable power supply to achieve stable operation of the device. The main control unit 1 is equipped with a clock module 9 for recording the time information of abnormal events, which is conducive to event pattern finding and problem analysis. The clock module 9 also considers temperature changes and first uses the temperature module to measure the temperature of the crystal oscillator, and then fits a highly overlapping linear curve on matlab according to the temperature curve, and then compensates the RTC clock according to the four-phase calculation formula in the main control unit 1 to obtain a high-precision RTC count at the extreme temperature.

[0027] In depth, the recording and storage module 8 includes a FLASH storage chip IC4 and a FLASH storage chip IC15 connected to the MCU module IC6, and the MCU module IC6 is equipped with an EEPROM storage chip IC5. The recording and storage module 8 can record at least 366 days of energy consumption and abnormal event functions. Each record has a corresponding timestamp, and records the current, voltage and other data of the battery for 366 days. The corresponding power consumption and the total energy consumed are calculated by the current and voltage. The remaining energy and remaining usage time of the battery can be estimated according to the input set battery model, capacity, battery material, and total energy consumed. The recording and storage module 8 is used to save the setting information of the detection device and store abnormal failure data, which is convenient for later problem finding and information summarization.

[0028] Furthermore, the Type C communication module 6 includes a CP2102 serial port chip IC2 and a π121 isolation chip IC3, and the serial port chip IC2 and the isolation chip IC3 are equipped with a TYPE-C-16P interface USB1. The data recorded during the detection process can be displayed on the PC display terminal through the Type C communication module 6, providing a basis for data analysis and tracing the cause of the problem. The existing technology generally only detects the voltage and current values, and does not consider the stable value of the battery output source. The detection of the stable output of the battery needs to consider the use of wavelet transform to amplify and observe the set high-frequency parts of the voltage and current of the battery data to ensure that the battery output data does not fluctuate greatly. To prevent the influence of large fluctuations on precision instruments.

[0029] Furthermore, the display module 4 is used to display the current voltage, current, power, total energy consumption, communication parameters, voltage threshold, current threshold, power threshold and other information display and setting of the human-computer interaction interface. Specifically, it includes an LCD chip IC1 and a dot matrix display screen, which uses a dot matrix to display real-time voltage, current, power, consumed energy, etc., and can switch communication parameters, real-time time, battery voltage, current, power threshold and other interfaces through the key module 5 to achieve good human-computer interaction. The LCD chip IC1 is equipped with ESDA6V1W5 type suppression diodes D1-D4.

[0030] In addition, the key module 5 is used for information input functions such as starting and pausing the detection mode in the human-computer interaction interface, setting the threshold value of the setting information, etc. It includes key switches S1-S3, and the buttons S1-S3 are equipped with display lights LED2-LED4.

[0031] At the same time, the power module 7 includes a power chip U1 in a SOP-8 package, the power chip U1 is connected to a photocoupler U2, the power chip U1 is equipped with a 7805 / SMD voltage regulator chip IC7 and a 2852K33 voltage regulator chip IC8, the power chip U1 is equipped with a 7550 voltage regulator chip IC11 and a voltage regulator chip IC16.

[0032] It can be seen that the voltage sampling module 2 is used to monitor the voltage output of the current detection battery. When the battery voltage is abnormal, the current event can be recorded and combined with other error information to filter out the judgment error information caused by the detection environment. It includes the PI 131M61 model digital isolator U3 and the A124 model analog-to-digital conversion chip IC9.

[0033] Obviously, the existing current sampling gears generally use a fixed range of microamperes, milliamperes, and amperes to achieve the accuracy of measuring loop current. The current sampling module 3 in this application is used to monitor the current output of the current detection battery. It can automatically switch gears according to the detected current conditions to ensure the accuracy of current detection. When the battery current is abnormal, the current event can be recorded and combined with other error information to filter out the judgment error information caused by the detection environment. Specifically, it includes a PI 131M61 model digital isolator U4 and a digital isolator U5. The current sampling module 3 has an A124 model analog-to-digital conversion chip IC12 and an analog-to-digital conversion chip IC14. The current sampling module 3 has an RS8524XQ model operational amplifier IC13.

[0034] Preferably, the main control unit 1 adopts the Cortex-M0 core.

[0035] To sum up, the principle of this embodiment is that the voltage sampling module 2 and the current sampling module 3 collect current and voltage, use wavelet transform to obtain the high-frequency abnormal signals in the voltage, current and frequency, and the recording and storage module 8 records the changes in voltage, current and frequency in this time period, and then uses the threshold to judge the abnormal data in the voltage, current and power and record them.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although this article uses more terms such as main control unit 1, voltage sampling module 2, current sampling module 3, display module 4, key module 5, Type C communication module 6, power module 7, recording storage module 8, clock module 9, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A battery voltage and current consumption monitoring and recording device, comprising a main control unit (1), characterized in that: The main control unit (1) is connected to a voltage sampling module (2) and a current sampling module (3), the main control unit (1) is connected to a display module (4) and a key module (5), the main control unit (1) is connected to a Type C communication module (6) and a power module (7), and the main control unit (1) is connected to a recording storage module (8) and a clock module (9).

2. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The main control unit (1) uses an MCU module IC6 of the HT6017 model.

3. A battery voltage and current consumption monitoring and recording device according to claim 2, characterized in that: The recording storage module (8) comprises a FLASH storage chip IC4 and a FLASH storage chip IC15 connected to the MCU module IC6, and the MCU module IC6 is equipped with an EEPROM storage chip IC5.

4. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The Type C communication module (6) comprises a CP2102 serial port converter chip IC2 and a π121 isolation chip IC3. The serial port converter chip IC2 and the isolation chip IC3 are equipped with a TYPE-C-16P interface USB1.

5. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The display module (4) comprises an LCD chip IC1 and a dot matrix display screen, wherein the LCD chip IC1 is equipped with suppression diodes D1-D4 of the ESDA6V1W5 model.

6. A battery voltage and current consumption monitoring and recording device according to claim 5, characterized in that: The key module (5) comprises key switches S1-S3, and the key switches S1-S3 are equipped with display lights LED2-LED4.

7. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The power module (7) comprises a power chip U1 in a SOP-8 package, the power chip U1 is connected to a photocoupler U2, the power chip U1 is equipped with a 7805 / SMD voltage regulator chip IC7 and a 2852K33 voltage regulator chip IC8, the power chip U1 is equipped with a 7550 voltage regulator chip IC11 and a voltage regulator chip IC16.

8. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The voltage sampling module (2) comprises a PI 131M61 model digital isolator U3 and an A124 model analog-to-digital conversion chip IC9.

9. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The current sampling module (3) comprises a PI 131M61 model digital isolator U4 and a digital isolator U5, the current sampling module (3) has an A124 model analog-to-digital conversion chip IC12 and an analog-to-digital conversion chip IC14, and the current sampling module (3) has an RS8524XQ model operational amplifier IC13.

10. A battery voltage and current consumption monitoring and recording device according to claim 1, characterized in that: The main control unit (1) adopts the Cortex-M0 core.

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