Household high power charging load data recorder

Abstract

Provides a household high power charging load data recording device. The present invention includes a first current sensor module 10, a voltage collection and conversion module 20, an analog-to-digital conversion module 30, and a storage module 50, in which the first current sensor module is connected in series to a power transmission line, the voltage collection and conversion module is connected to the power transmission line, the first current sensor module and the voltage collection and conversion module are respectively connected to the analog-to-digital conversion module, and the analog-to-digital conversion module is connected to the storage module. The first current sensor module detects the current on the power transmission line and generates a first current detection signal. The voltage collection and conversion module collects the voltage of the power transmission line and converts the collected power line voltage into a small voltage signal. The analog-to-digital conversion module performs analog-to-digital conversion between the first current detection signal and the small voltage signal.

Description

[Technical field]

[0001] The present application relates to the field of power supply, and mainly relates to a data recording device for household high-power charging loads. [Background technology]

[0002] The number of home charging devices is increasing. For example, loads with a charging power of 50W or more are generally high-power. For example: mobile phone charger: the most common household high-power charger. It is possible to fast charge various brands of mobile phones, and the current fast charging power is 66W or more. Laptop Charger: This charger is for charging your laptop. They are designed to be highly efficient and can charge your computer quickly. Generally, the charging power is 65W or more, and the high-power ones are about 300W. Nowadays, electric bicycles are becoming more and more popular, and their charging power is generally between 50W and 120W. Charger: The charging power of this charger is generally between 70W-300W. Other high power New electrical appliances: cleaning robots, electric trunks, etc. The use of high-power chargers brings many problems to electrical safety, the most important of which is fire. and electric shock. High-power household chargers can be overloaded, discharged, aged, or misused. If the equipment loses control, electrical wires, batteries or components may overheat and ignite, causing a fire. This type of accident is not uncommon. The current output from a high-power home charger is The user may accidentally touch a conductive part or a charger contaminated with moisture. Doing so may result in electric shock or, in severe cases, personal injury or death. Detailed power consumption process data for household high-power charging loads is lacking, and related research This has seriously limited the ability to provide early warning of related safety issues. This application solves the problem of detailed power usage process data being insufficient for detailed household high-power charging loads. A household high-power charging load data recording device is provided for determining whether a first current sensor module is connected to the first power sensor module. The module includes a voltage acquisition and conversion module, an analog-to-digital conversion module, and a storage module. The first current sensor module is connected in series with the power line, and the voltage collection and conversion module is connected to the power line. The first current sensor module and the voltage acquisition and conversion module are connected to the electric wire. The analog-to-digital conversion module is connected to the storage module. The hub is connected to the The first current sensor module detects a current on the power line and generates a first current detection signal; 1. The current detection signal is sent to the analog-to-digital conversion module. The converter module detects the voltage on the power line and converts the detected power line voltage into a small voltage signal. , configured to send a small voltage signal to an analog-to-digital conversion module. The log-to-digital conversion module receives the first current detection signal and the small voltage signal and converts them into analog-to-digital to convert the digital signal to a digital signal and send it to the memory module. The storage module receives the digital signal and stores the digital signal. It is configured to: The household high-power charging load data recording device proposed in this application is for charging load electricity, especially high-power electricity It can completely and accurately record the voltage and current waveforms of electrical equipment, and utilize the advantages of current sensors. By using this method, the sensitivity of the recording start was guaranteed and the accuracy of the measurement was also guaranteed. The spectrum of the electricity usage related data recorder is wide, and various types of loads can be used for various types of electricity. It can record electricity usage data in an air-conditioning environment and has a wide range of applications. It provides detailed, abundant, true, unified and comprehensive power usage data, and is a practical household appliance. Solve the problem of power usage detailed process data that power charging load is insufficient . Optionally, the household high power charging load data recorder is equipped with a startup management module and a lower limit detection module. The boot management module is electrically connected to the memory module, and the lower limit detection module is The modules are electrically connected to the first current sensor module and the startup management module, respectively. ,The startup management module includes a shutdown management module. The first current sensor module detects a current on the power line and generates a first current detection signal; 1 is configured to transmit a current detection signal to the lower limit detection module. The controller receives the first current detection signal, analyzes the current situation on the power line, and determines whether the second mutation occurs. If the mutated current falls below the lower threshold, a stop command is sent to the stop management module. The stop management module is configured to send a stop command to the The enclosing unit is configured to send a command to the storage module to stop recording. In response to an instruction to stop storing records, the controller causes the enclosure to stop storing records. The control is configured to stop the Optionally, the household high power charging load data recorder can be equipped with an upper limit detection module and a second A current sensor module is connected in series with the power line, and the second current sensor module is connected in series with the power line. The limit detection module is electrically connected to the start / stop management module and the second current sensor module. The start / stop management module includes a start management module. The second current sensor module detects a current on the power line and generates a second current detection signal; 2 is configured to send the current detection signal to the upper limit detection module. receive a second current detection signal, analyze a current situation on the power transmission line, and determine that a first mutation occurs; If the mutation current is higher than the upper threshold, a start-up command is sent to the start-up management module. The boot management module is configured to perform the memory register in response to the boot instruction command. The enclosure is configured to transmit instructions to the memory module to activate the code. In response to a command to store logging, the enclosure is controlled to start the logging function. It is configured to: Optionally, the home high power charging load data recorder can be used to record the startup management module output and and a timing module electrically connected to the shutdown management module input. In response to the start instruction command, the management module sends a start timing command to the timing module. The timing module is also configured to receive a timing start command. Start the recording start time length, and if the start time length is equal to the preset time length, the stop management mode The control module is configured to send a stop command to the control module. As an option, a domestic high-power charging load data recorder can be connected to the startup management module. a timing module electrically connected to said timing module, said timing module being adapted to control a start timing In response to the command, the timing record timing start time length is started, and the timing start If the time length is equal to the preset startup time length, a startup command is sent to the startup management module. is configured to transmit. Optionally, the home high power charging load data recorder can be used with the startup management module and the shutdown A start / stop button module is electrically connected to the management module. The stop key module responds to the user's key operation and sends a start instruction command to the start management module. The stop command is configured to send a stop command to the stop management module. There are. As an option, the domestic high-power charging load data recorder can be used for power line and domestic high-power charging. The charging load data recorder includes a power supply module electrically connected to the power supply module. , converting the voltage of the power transmission line to at least a low-voltage DC current, and converting the low-voltage DC current into a household high-power charging load device. The data is then sent to a data recording device. Optionally, the household high power charging load data recorder can include a first current sensor module and a mixing prevention filter module electrically connected to the AD conversion module, The protection filter module is configured to filter the first current sense signal. Optional anti-aliasing filter for domestic high power charging load data recorders The ring module consists of a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, and a fourth 2nd Capacitor, 3rd Capacitor, 4th Capacitor, 1st Op Amp, 2nd Op Amp Includes resistors. The first end of the first resistor is connected to the output end of the first current sensor module, and the second end of the first resistor is connected to the output end of the first current sensor module. The second end of the first resistor is connected to the common-mode input of the first operational amplifier through a first capacitor. The inverting input terminal of the first operational amplifier is connected to the output terminal of the first operational amplifier through a resistor. The first end of the second capacitor is connected to one end of the second resistor, 1 is connected to the common-mode input terminal of the operational amplifier, and the second terminal of the second capacitor is grounded. The first end of the third resistor is connected to the output terminal of the first operational amplifier, and the second end of the third resistor is connected to the output terminal of the second operational amplifier via the fourth resistor. The second end of the third resistor is connected to the common-mode input terminal of the operational amplifier, and the second end of the third resistor is connected to the second The inverting input of the second op amp is connected to the output of the second op amp. The first end of the fourth capacitor is connected to one end of the fourth resistor and the common-mode input terminal of the second operational amplifier. The second end of the fourth capacitor is grounded, and the output of the second operational amplifier is It is connected to the input terminal of the analog conversion module. Optionally, the household high power charging load data recorder includes a first indicating module and a second indicating module. an instruction module, the first instruction module being electrically connected to the storage module; The two indicating modules are electrically connected to the power supply module. The storage module also responds to the instruction to activate the storage record by informing the first instruction module. configured to transmit a command to activate a storage state and responsive to a command to stop storing the record. The first instruction module transmits a command to stop the stored state to the first instruction module. In response to an activation of a status command, the device is configured to display the activation status information and in response to a stop status command, the device is configured to display the activation status information. The second indication module indicates whether the power supply module is normally powered on. power supply module is configured to display a normal power supply command when If the power supply is abnormal, a power supply abnormality command will be displayed. The present application relates to a first current sensor module for detecting a current on a power line and generating a first current detection signal. and a voltage collector that collects the line voltage and converts it into a small voltage signal. The first current detection signal and the small voltage signal are converted into analog-to-digital by the analog-to-digital converter. Digital conversion module, enclosure activates logging function and performs logging operation or stop the logging facility to control the logging operation. Management module, record analog-to-digital conversion module obtains digital signal on / off A storage module for storing and stopping recording operations under the control of the off management module. This application relates to a method for completely and accurately measuring the voltage and current waveforms of electricity for loads, particularly electricity for high-power electrical equipment. It can record detailed power usage process data of household large power charging loads Resolve the issue. [Brief description of the drawings]

[0003] In order to more clearly describe the technical aspects of the present application, the following description will be made in the following embodiments. The drawings are briefly described below, and are clearly understood by those skilled in the art without any creative effort. Based on these drawings other drawings can be derived. [Figure 1] FIG. 1 is a schematic diagram of a household high-power charging load data recording device according to an embodiment of the present application. [Diagram 2] FIG. 2 is a schematic diagram of a household high-power charging load data recording device according to another embodiment of the present application. [Diagram 3] FIG. 2 is a schematic diagram of a household high-power charging load data recording device according to another embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a household high-power charging load data recording device according to another embodiment of the present application. [Diagram 5] FIG. 2 is a circuit diagram of a mixing prevention filter module according to an embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of a household high-power charging load data recording device according to another embodiment of the present application.

[0004] Legend explanation:

[0030] 10-first current sensor module, 20-voltage acquisition conversion module, 30-type Number conversion module, 40-interval management module, 50-memory module, 60-second current cell Sensor module, 70-Upper limit detection module, 80-Lower limit detection module, 90-Time measurement module module, 41-Startup management module, 42-Stop management module. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0005] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description is provided in conjunction with the accompanying drawings. , unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The embodiments described below are representative of all embodiments consistent with this application. A system consistent with certain aspects of the present application, as specifically described in the claims, is not provided. These are merely examples of systems and methods. The present application provides a household high-power charging load data recording device. As shown in FIG. Sensor module 10, voltage collection and conversion module 20, analog-to-digital conversion module 30 and a memory module 50. The first current sensor module 10 is connected in series to the power line. The voltage collection and conversion module 20 is connected to the power transmission line, and the first current sensor module 1 0 and the voltage acquisition conversion module 20 are respectively connected to the analog-to-digital conversion module 30. The analog-to-digital conversion module 30 is connected to a storage module 50 . Specifically, the first current sensor module 10 detects a current on the power line and outputs a first current detection signal. A power line voltage is collected and converted into a small voltage signal. The voltage acquisition and conversion module 20 for detecting the first current. It is used for analog-to-digital conversion of output signals and small voltage signals. A storage module 50 for storing the digital signal obtained by the digital conversion module 30. The first current sensor module 10 measures the current flowing through the power line and performs analog-to-digital conversion. The first current detection signal is coupled to the power line for outputting the first current detection signal to the module 30. The detection signal characterizes the magnitude of the detected current. The transmission line is a single-phase conductor for residential electricity. The single-phase conductor is rated at 220V AC, and the current in the conductor changes with the power of the electrical load. The flow waveform changes. The first current sensor module 10 can include a Hall current sensor. Compared to electromagnetic current sensors, the spectrum is wider and the sensor can transmit from 0 Hz to several hundred kHz. Therefore, it is ideal for wide spectrum current measurement of high power electrical equipment such as high power charging equipment. The Hall current sensor has a measurement range of 10A and an accuracy of 0.2 level. The voltage capture conversion module 20 specifically includes a voltage transponder for converting voltage. Potential Transformer: PT is included. The conductor voltage is Then, the 220V voltage is converted into a small voltage signal that can be input to the AD conversion module 30. PT can choose for example the rated variable is 220V / 2V, of course The specifics can be set according to the actual situation, and the present application does not impose any limitations thereon. The analog-to-digital conversion module 30 has dual-channel, synchronous sampling capabilities. The first current detection signal and the small voltage signal are converted into a two-channel analog-to-digital converter. The 10-channel digital input / output (Digital-to-Analog) signal can be sampled and converted synchronously. In one embodiment, an AD4632-16 analog-to-digital converter is used to convert analog quantities to digital values. The AD4632-16 analog-to-digital converter completes the conversion to a digital quantity. 10-bit, synchronous sampling, 500kSPS successive approximation register (SAR) type analog-to-digital conversion It guarantees maximum integral nonlinearity INL of ±3 ppm and 16-bit lossless code, and is -40 Excellent accuracy from ℃ to +125℃. Low drift, internal precision reference buffer This simplifies the sharing of the reference voltage with other system circuits. When using a 5V reference voltage source, The 4632-16 analog-to-digital converter has a typical dynamic range of 97.4 dB. The low noise floor supports signal chains with smaller gain and lower power consumption. Wide differential input and common mode ranges allow the inputs to be referenced when not saturated. The entire pressure range can be used, thereby simplifying signal conditioning requirements and system calibration The sampling rate may be 50 kHz. In a particular embodiment, the enclosure 50 is configured to provide a 100% data integrity guarantee to ensure continuous data retention for 8 hours or more. For this purpose, 16GB of FLASH can be used. The household high-power charging load data recording device proposed in this application is for charging load electricity, especially high-power electricity It can completely and accurately record the voltage and current waveforms of electrical equipment, and utilize the advantages of current sensors. By using this method, the sensitivity of the recording start was guaranteed and the accuracy of the measurement was also guaranteed. The spectrum of the electricity usage related data recorder is wide, and various types of loads can be used for various types of electricity. It can record electricity usage data in an air-conditioning environment and has a wide range of applications. It can provide detailed, abundant, true, unified and comprehensive power usage related data, which is detailed and practical. Solving the problem of insufficient detailed power usage process data for typical household high-power charging loads Can In some embodiments, as shown in FIGS. 2 and 4, a domestic high power charging load data recording device The start / stop management module 40 and the storage module 50 The start / stop management module 40 includes a stop management module 42. The first current sensor module 10 and the start / stop management module 80 are respectively The start / stop management module 40 is electrically connected to the stop management module 40. Includes 2. The first current sensor module 10 detects a current on the power line and generates a first current detection signal. Then, the first current detection signal is sent to the lower limit detection module 80. When the first current detection signal is detected, a second mutation occurs in the current on the power transmission lead based on the first current detection signal. and whether the mutation current is below a lower threshold; If the mutation current is below the lower threshold, the start-up management module 40 sends a stop command signal to the The memory module 50 is controlled based on the stop instruction signal to close the memory recording function. and a start / stop management module 40 for stopping the memory recording operation. Specifically, the second mutation is a mutation or abrupt decrease in the current, specifically from high to low. The detection module 80 detects the current based on the first current detection signal output by the first current sensor module 10. Based on this, it is judged whether a sudden change or decrease in the current of the transmission line from high to low will occur, and once A sudden change or decrease from high to low occurs and the current exceeds the set lower threshold. If it falls below the limit, the lower limit detection module 80 outputs a stop instruction signal to the start management module 40. Then, the boot management module 40 controls the storage module 50 to stop the recording function and Stop the operation. In this embodiment, the first current sensor module 10 and the lower limit detection module 80 detect the current of the power transmission line. Automatically monitors for current drop events and automatically shuts down memory module 5 after detecting a current drop event. Automatically control 0 to turn off the memory recording function, and realize adaptive off management of the memory recording function did. In some embodiments, as shown in FIGS. 3 and 4, a domestic high power charging load data recording device includes an upper limit detection module 70 and a second current sensor module 60, and the second current sensor The module 60 is connected in series to the power line, and the upper limit detection module 70 is a startup management module. The start-up management module 40 is electrically connected to the second current sensor module 60. The boot management module 41 is included. a second current sensor module for monitoring a current through the power line and generating a second current sense signal; When the upper limit detection module 70 is exceeded, the second current detection signal is sent based on the acquired second current detection signal. Determine whether the first sudden change in current on the power lead occurs and whether the sudden change in current exceeds the set upper limit. If the sudden change in current exceeds the upper threshold, the start command is issued. The start instruction signal is output to the start / stop management module 40. A start / stop management model for controlling the memory 50 to start the memory recording function and execute the memory recording operation. Joule 40. The start / stop management module 40 controls the memory module 50 to start the memory recording function. The start / stop management module 40 is used to start / stop the memory recording function. By key control, remote control, wireless communication control, timing control, or adaptive automatic control, etc. However, the present application is not limited thereto. Specifically, the second current sensor module 60 includes a Rogowski coil current sensor. The output of the secondary side of the Rogowski coil current sensor is proportional to the primary input current. The larger the amplitude of the primary measurement current, the higher the frequency becomes, and the lower the secondary output voltage becomes. The moment a high-power charger starts charging, it produces a momentary current impulse. The peak current can reach several to several tens of times the steady-state charging current, and the high-frequency pulse current Therefore, a Rogowski coil current sensor is used to capture the current variation. The sensor rating parameters are determined by the need for a large current measurement range. In order to meet the requirements, 60A can be selected. The first mutation is a particularly high current mutation or sudden increase. Based on the second current detection signal output from the second current sensor module 60, Determine whether a current mutation from high to low has occurred and set the mutation current If so, the upper limit detection module 70 starts The boot management module 40 outputs a boot instruction signal to the storage module. The controller 50 is controlled to activate the memory recording function and execute the memory recording operation. In this embodiment, the second current sensor module 60 and the upper limit detection module 70 detect the current of the power transmission line. Automatically monitors for current surge events and shuts down the memory module after monitoring the current surge event. 50 is automatically controlled to start the memory recording function, and adaptive startup management of the memory recording function is realized. . The start and stop functions of the start and stop management module 40 are respectively implemented by the start management module 41. The stop management module 42 realizes this independently. In some embodiments, as shown in FIG. 4, the rate charge load data recorder is a start-up tube. The output terminal of the control module 41 and the input terminal of the stop management module 42 are electrically connected to The start-up management module 41 responds to a start-up instruction command. The timer 90 is also configured to send a start timing command to the timer module 90 . The timing module 90 starts timing after receiving a start signal from the start management module 41. When the measured time length reaches a preset time length, a stop instruction signal is sent to the stop management module 42. The stop management module 42 outputs the stop instruction signal, and controls the storage module 50 based on the stop instruction signal. In this embodiment, the timing module 90 closes the storage function and stops the storage operation. This realizes automatic time control management of storing records. In some embodiments, the domestic high power charging load data recorder includes a startup management module 41. The timing module is electrically connected to the start In response to a timing command, the timing record timing start time length is started and the timing If the timing start-up time length is equal to the preset start-up time length, the start-up management module 41 The device is configured to transmit a start-up command. Specifically, the timing module is used to delay the automatic start, and after the delay setting The timing module delays the start of the timing from the start time, and the delay time length, i.e., the cumulative After delaying the accumulation time to the preset start-up time, the timing module A start instruction signal is automatically output to the start management module 41. The signal is a start instruction signal. The preset start time is obtained from the user timing command. The start time can be set according to the user's needs, but there is no restriction in this application. In this embodiment, a timing module is used to realize auto-start execution with record storage. In some embodiments, the domestic high power charging load data recorder includes a startup management module A start / stop button module 41 and a stop management module 42 are electrically connected to each other. The start / stop key module responds to the user's key operation and starts the start management module. A start instruction command is sent to the stop management module 42. is configured to transmit The start / stop key module is used to realize the key control to store the recording function. The start / stop management module 40 is composed of a start management module 41 and a stop management module 42. The start / stop key module includes a start management module 41 and a stop management module 2. Each time the button is pressed, the memory recording function switches between "Start" and " A start instruction signal or a stop value signal is output so that the start instruction signal or the stop value signal is switched between "start" and "stop." In this embodiment, the start / stop key module controls the key to store the recording function. The power usage data recording device of the present invention realizes various start / stop control. It has a variety of control functions and status indications, and can easily develop records of various charging devices. In some embodiments, the domestic high power charging load data recorder is a power line and domestic high power charging load data recorder. The high power charging load includes a power supply module electrically connected to the data recording device. The system converts the voltage of the power line into at least low-voltage DC and uses the low-voltage DC for high-power home charging. The load data is sent to a recording device. The power supply module converts the 220V voltage of the power line into various DC / DC converters required for the operation of the other modules of the equipment. That is, the power supply module can convert electrical data into low voltage. Provide a DC low voltage that corresponds to the module that needs to supply power to the recording device. In this embodiment, electricity can be taken directly from the conductive wire used, and it is possible to use a separate power source. There is no need to connect the lines. In some embodiments, the domestic high power charging load data recorder comprises a first current detection signal A mixing prevention filter module configured to filter a first current sensor module. A mixing prevention filter module electrically connected to the AD conversion module 30. This includes the following: In some embodiments, the anti-aliasing function of the domestic high power charging load data recorder is The filter module consists of a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, 2nd Capacitor, 3rd Capacitor, 4th Capacitor, 1st Op Amp, 2nd Op Amp Includes resistors. Specifically, the mixing prevention filter module detects the output of the first current sensor module 10. The first current detection signal is input to the mixing prevention filter module, and the mixing prevention filter module The module filters out high frequency signals in the first current sense signal and reduces the band interference caused by out-of-band noise. It is used to eliminate the aliasing effect of the in-band signal. The current detection signal is fed back to the analog-to-digital conversion module 30 . The frequency band of the present application can be set, for example, to 0-20 kHz. The anti-aliasing filter may be arranged according to circumstances, and the present application does not impose any limitations thereon. A low-pass filter with a cutoff frequency of 20 kHz can be used. As shown in FIG. 5, a circuit diagram of a mixing prevention filter module in one embodiment of the present application. The anti-presence filter module consists of a first resistor R1A, a second resistor R2A, a third resistor R1B, and a fourth resistor R2C. Resistor R2B, 1st capacitor C1A, 2nd capacitor C2A, 3rd capacitor C1 B, the fourth capacitor C2B, the first op-amp U2A, and the second op-amp U2B. nothing. A first end of the first resistor R1A is connected to the output end of the first current sensor module 1010, and a second The terminal is connected to the common-mode input terminal of the first operational amplifier U2A via the second resistor R2A, and the terminal is connected to the common-mode input terminal of the first operational amplifier U2A via the first resistor R The second end of 1A is connected to the output of the first operational amplifier U2A through the first capacitor C1A. The inverting input terminal of the first operational amplifier U2A is connected to the output terminal of the first operational amplifier U2A. The first end of the capacitor C2A is connected to one end of the second resistor R2A and the common-mode input of the first operational amplifier U2A. The second end of the second capacitor C2A is connected to the output end of the first capacitor C2A, and the second end of the second capacitor C2A is grounded. The first end of the third resistor R1B is connected to the output terminal of the first operational amplifier U2A, and the second end is connected to the fourth resistor It is connected to the common-mode input terminal of the second operational amplifier U2B via R2B, and the second terminal of the third resistor R1B is connected to the output of the second operational amplifier U2B via the third capacitor C1B, The inverting input of the amplifier U2B is connected to the output of the second operational amplifier U2B, and the fourth capacitor The first terminal of C2B is connected to one terminal of the fourth resistor R2B and the common-mode input terminal of the second operational amplifier U2B. The second end of the fourth capacitor C2B is grounded, and the second end of the second operational amplifier The output terminal of the amplifier U2B is connected to the input terminal of the analog-to-digital conversion module 3030. . Specifically, the anti-aliasing filter of this embodiment is a fourth-order Chebyshev filter. It is. In some embodiments, the domestic high power charging load data recorder includes a storage module 50 a first indicating module electrically connected to the power supply module; and a second indicating module electrically connected to the power supply module. and an instruction module. The storage module 50 also responds to a command to activate the storage record by a first instruction module. configured to transmit a command to the memory device to initiate a storage state and to respond to a command to stop storing the record. In response, the first instruction module transmits a command to stop the stored state. The first instruction module configured to display the start-up state information in response to activation of the store state command; In response to the power supply module, the second indicating module indicates the power supply module is normally stopped. If the power supply is being supplied, the power supply module is configured to display a normal power supply command. If the power supply of the module is abnormal, the power supply abnormal command is displayed. The module and the second indicator module are LED indicator modules, i.e. The device may be provided with a status indicator lamp. For example, when the device's operating power is normal, the power supply module will turn on the green Controls the lighting of the LED lamp. When the device is not working or there is a power failure, the power module The module controls the second instruction module so that the green LED lamp is turned off. The memory module 50 then outputs a first instruction, such as a flashing green LED lamp of the first instruction module. You can control the lighting of the LED lamp of the module, and when the process stops, the lamp The light will turn off. Different operating states can be indicated through the indication module, and the user can Convenient for clearly and intuitively understanding the device status. Simple status indication function makes it easy to use. stomach. FIG. 6 is a block diagram showing the configuration of a recording device using electrical-related data according to another embodiment of the present invention. The electrically related data recording device is a first current detector connected in series with the power line. A current sensor module 10, a voltage collection and conversion module 20 connected to a power transmission line, a first current sensor The sensor module 10 and the AD conversion module 3 connected to the voltage collection and conversion module 20 0, the boot management module 40, the AD conversion module 30 and the boot management module 40 a memory module 50 connected to the power line; and a second current sensor module 60 connected in series to the power line. The second current sensor module 60 and the upper limit detection module connected to the startup management module 40 The first current sensor module 70 is connected to the first current sensor module 10 and the startup management module 40. The limit detection module 80 is connected to the output terminal of the start management module 41, and the stop management module An upper limit detection module 70 connected to the input terminal of the module 42 A timing module 90, a timing module connected to the start / stop management module 40; A start / stop key module connected to the start / stop management module 40, A power supply module is connected between the first current sensor module 10 and the AD conversion module 30. The start / stop management module 40 is a start management module. The system includes a stop management module 42 and a stop control module 43. The boot management module 41 supports the setting of boot mode: manual button boot, timing Automatic start of testing, automatic start of mutation testing, optional or multiple types can be selected. Then, the timing module 90 will delay from the current time to the preset start time. When the start-up management module 41 receives the command, the start-up management module 41 outputs a start-up instruction signal. The stop management module 41 and the stop management module 42 are accessed simultaneously, and each time the button is clicked The state switches between "Startup" and "Stop". Upper limit detection module 70 In this way, the output of the second current sensor module 60 changes from low to high, and the set upper limit It detects whether the threshold is exceeded, and if so, outputs a start-up instruction signal to the start-up management module 41. The boot management module 41 receives the corresponding trigger input based on the current boot mode. Detects the signal, outputs a start signal as soon as the trigger signal is valid, and stores the signal in the memory module 50. to trigger the recording process. Stop the management module 42, which supports the input of three types of signals. The first is logging. indicates that if a keystroke is received, the current logging process will stop. Second, it is the input of the timing module 90, 0 starts timing after receiving a valid start signal and when timing reaches the set preset time Then, a valid stop instruction signal is output to the stop management module 42. Thirdly, the lower limit detection module When the current sensor module 10 detects the first current, the current sensor module 10 detects the first current. The device detects the current going from high to low and below the set lower threshold. When it detects one of the three types of signals, it outputs a stop instruction signal. The management module 42 outputs a stop signal, which is sent to the storage module 50 to stop the current recording process. Stop the process. This application makes comprehensive use of the advantages of the Rogowski coil current sensor and the Hall current sensor to record The sensitivity of the start-up is guaranteed, and the accuracy of the measurement is guaranteed. The recording device records the charging process of household high-power electrical appliances, especially high-power rechargeable appliances, and records the power during the charging process. Records the voltage and current waveforms to provide detailed, abundant and accurate data for related research, and supports various start / stop control It has a variety of control functions and status indications, and can conveniently display the records of various charging devices. It supports various recording methods and completely and accurately records the voltage and current waveforms during load charging. It can be recorded. The recording process has various start-up control functions, including: manual button start-up, timing automatic Automatic start, automatic start of inspection mutation. The recording process has various stop control functions, including: : Manual button stop, automatic timing stop, automatic detection no-flow stop. Various start / stop control functions can be set at will. Can be combined to meet the needs of different electrical appliances, different scenes, and different application needs. The device is powered directly from the electrical conductor, so there is no need to connect a separate power cord. At the same time, it has concise status indication and is easy to use. The present application relates to a first current sensor module for detecting a current on a power line and generating a first current detection signal. and a power supply module 10 that collects the line voltage and converts the collected line voltage into a small voltage signal. A voltage acquisition and conversion module 20 performs analog-to-digital conversion of the first current detection signal and the small voltage signal. The analog-to-digital conversion module 30 and the storage module 50 activate the storage recording function. Control to execute memory recording operation or stop memory recording function to stop memory recording operation The start / stop management module 40 and the storage module 50 are a recording AD conversion module. The digital signal obtained by the filter 30 is stored under the control of the on / off management module 40. This application relates to load electricity, particularly high power It can record the voltage and current waveforms of electrical appliances completely and accurately, and can record detailed household large power Solves the problem of lack of detailed power usage process data for charging loads. Similar parts between the embodiments provided herein may be referred to each other. The above embodiments are merely some examples under the overall concept of the present application and should not be construed as limiting the scope of protection of the present application. It is understood by those skilled in the art that other embodiments expanded on the basis of the present disclosure include: It falls within the scope of protection of this application without any payment of creative labor.

Claims

1. A household high-power charging load data recording device, A first current sensor module 10, a voltage collection and conversion module 20, and an analog-to-digital converter A conversion module 30 and a storage module 50, The first current sensor module 10 is connected in series to the power line and the voltage collection and conversion module 2 0 is connected to the power transmission line, and the first current sensor module 10 and the voltage collection and conversion module 20 Each is connected to an analog-to-digital conversion module 30, The analog-to-digital conversion module 30 is connected to the storage module 50 and includes a first current sensor The sensor module 10 detects a current on the power line, generates a first current detection signal, and sending the output signal to the analog-to-digital conversion module 30; The voltage collection and conversion module 20 detects the voltage of the power line and converts the detected power line voltage into a small voltage 3. Convert the small voltage signal into a signal and send it to the analog-to-digital conversion module 30; The analog-to-digital conversion module 30 receives the first current detection signal and the small voltage signal and converts them into an analog A log-to-digital conversion is performed to obtain a digital signal, and the digital signal is sent to the storage module 50. Believe, The storage module 50 is configured to receive the digital signal and store the digital signal. R, A household high power charging load data recorder.

2. The system includes a start / stop management module 40 and a lower limit detection module 80, The start / stop management module 40 and the memory module 50 are electrically connected, and the lower limit detection module 80 is electrically connected to the first current sensor module 10 and the start / stop management module 40 The start / stop management module 40 includes a stop management module 42, The first current sensor module 10 detects a current on the power line and generates a first current detection signal. , transmits a first current detection signal to the lower limit detection module 80, and the lower limit detection module 80 1. Receive the current detection signal, analyze the current situation on the power line, and detect the second mutation. If the difference in current falls below the lower threshold, a stop command is sent to the stop management module 42. The stop management module 42 receives the stop command and stores it in the storage module 50 in response to the stop command. The storage module 50 is configured to send a command to stop recording. configured to control the storage module 50 to stop the recording function in response to the 2. The household high power charging load data recording device according to claim 1.

3. An upper limit detection module 70 and a second current sensor module 60 are included. The second current sensor module 60 is connected in series to the power line, and the upper limit detection module 70 is The second current sensor module 60 is electrically connected to the dynamic management module 40. The sensor module 60 detects the current on the power line and generates a second current detection signal. a detection signal to an upper limit detection module 70; a second current detection signal is received; and a current Analyze the current situation, and if the first mutation occurs and the current of the mutation is higher than the upper threshold, start A start-up instruction command is sent to the management module 41, and the start-up management module 41 In response to the command, the storage module 50 may be configured to send a command to initiate a storage record. The storage module 50 is configured to store the configured to control and initiate a recording function; 3. The household high power charging load data recording device according to claim 2.

4. The output terminal of the start management module 41 is electrically connected to the input terminal of the stop management module 42. The timing module 90 and the boot management module 41 respond to the boot instruction command and start the timer. A start timing command is sent to the timing module 90, and the timing module 90 responds to the timing start command. In response, a timed record start-up time length is started, and if the start-up time length is equal to a preset time length, In this case, the stop instruction command is transmitted to the stop management module 42.

4. The household high power charging load data recording device according to claim 3.

5. A timing module electrically connected to the start-up management module 41; The timing module responds to the start timing command and sets the start time of the recording timing. When the timing start time length is equal to the preset start time length, the start control configured to transmit a start instruction command to the management module 41; 5. The household high power charging load data recording device according to claim 4.

6. A start / stop management module 41 and a stop management module 42 are electrically connected to each other. Equipped with a stop button module, The start / stop key module notifies the start management module 41 of the start / stop operation in response to the user's key operation. or sends a stop command to the stop management module 42. It is configured to 6. The household high power charging load data recording device according to claim 5.

7. A power supply module electrically connected to the power line, The power supply module converts the voltage of the power line into at least low-voltage DC and converts the low-voltage DC into household voltage. configured to transmit the high power charging load data to a data recorder; 7. The household high power charging load data recording device according to claim 6.

8. Preventing mixing of the first current sensor module 10 and the AD conversion module 30 when they are electrically connected A filter module is provided, and the anti-mixing filter module filters the first current detection signal. is configured to process, 8. The household high power charging load data recording device according to claim 7.

9. The mixing prevention filter module consists of a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a first operational amplifier resistor, a second capacitor, a third capacitor, a fourth capacitor, and a first operational amplifier resistor , a second operational amplifier resistor; The first end of the first resistor is connected to the output end of the first current sensor module 10, and the second end of the first resistor is connected to the output end of the first current sensor module 10. a first terminal of the first resistor connected to the common-mode input terminal of the first operational amplifier through a first capacitor The inverting input terminal of the first operational amplifier is connected to the output terminal of the first operational amplifier through the a first end of the second capacitor connected to one end of the second resistor; The first terminal of the second capacitor is connected to the common-mode input terminal of the first operational amplifier, the second terminal of the second capacitor is grounded, and the third resistor The first terminal of the resistor is connected to the output terminal of the first operational amplifier, and the second terminal of the resistor is connected to the output terminal of the second operational amplifier via a fourth resistor. the second end of the third resistor is connected to the common-mode input terminal of the second operational amplifier via the third capacitor. the inverting input terminal of the first operational amplifier is connected to the output terminal of the second operational amplifier; The first end of the fourth capacitor is connected to one end of the fourth resistor and the common-mode input terminal of the second operational amplifier. The second end of the fourth capacitor is grounded, and the output of the second operational amplifier is connected to the analog connected to the input end of the conversion module 30; 9. The household high power charging load data recording device according to claim 8.

10. A first instruction module electrically connected to the memory module 50; and a second instruction module connected to the second input module, The storage module 50, in response to initiating the command to store, configured to transmit a storage state command, and in response to stopping the command to store, A command to stop the storage state is sent to the instruction module, and the first instruction module sends a command to stop the storage state. configured to display the start status information in response to the start command and to display the stop status information in response to the stop status command. , displaying the stopped state information; and the second indicating module indicating that the power supply module is normally supplying power. If the power supply is in the normal power supply state, the power supply module is configured to display the normal power supply command. If there is an abnormality, a power supply abnormality command is displayed.

9. The household high power charging load data recording device according to claim 8.

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