CN114019226A - Non-contact electric quantity measuring and recording device - Google Patents
Non-contact electric quantity measuring and recording device Download PDFInfo
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- CN114019226A CN114019226A CN202111258892.1A CN202111258892A CN114019226A CN 114019226 A CN114019226 A CN 114019226A CN 202111258892 A CN202111258892 A CN 202111258892A CN 114019226 A CN114019226 A CN 114019226A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
Abstract
The invention discloses a non-contact electric quantity measuring and recording device, comprising: the power supply module is used for reducing the voltage of an external power supply; the non-contact Hall sensor is used for measuring the parameter data of the equipment to be measured and the operation record information of the equipment to be measured in a non-contact mode in real time; the main control circuit board is used for integrating the parameter data to obtain integrated parameter data with a timestamp, and storing the integrated parameter data and the running record information of the equipment to be tested in the storage module; and the wireless radio frequency module is used for transmitting the instruction received from the external equipment to the main control circuit board and wirelessly transmitting the integrated parameter data stored by the storage module and the operation record information of the equipment to be tested to the external equipment according to the control instruction received from the main control circuit board. The invention realizes the non-contact and high-precision measurement and recording of the parameters such as the operating current and voltage of the large and medium-sized robots and the like, and has the advantages of portability, easy installation, high safety, high precision and the like.
Description
Technical Field
The invention relates to the technical field of electrical measurement, in particular to a non-contact electric quantity measuring and recording device.
Background
In recent years, with the rapid development of large-scale equipment and mobile robots, development and maintenance personnel increasingly demand changes in equipment power and power supply performance, and therefore it is necessary to accurately measure and record voltage and current of a high-power system during operation. And the development and maintenance personnel calculate and analyze the load change of the system during operation according to the power change curve and the current-voltage change curve, and perform fault diagnosis and analysis, thereby performing stability optimization on the system power supply.
However, the current solutions for measuring the current and voltage of the system are usually switched-in or integrated, i.e. the measuring device is connected in series with the system under test to measure the current and voltage of the system under test, and such solutions are simple in design but have the following disadvantages: on one hand, the integration of the measuring device increases the complexity of the system, and when the measuring device has problems, the circuit of the system to be measured can be caused to break down; on the other hand, when measuring large currents for a long time, higher requirements are placed on the electrical safety performance of the measuring device, and the embedding of the measuring device also increases the power consumption of the system.
Therefore, in the iterative process of the equipment, the design of the non-contact type non-contact electric quantity measuring and recording device which is convenient to install and disassemble has strong practical value.
Disclosure of Invention
Technical problem to be solved
In view of the above, the main object of the present invention is to provide a contactless electricity measuring and recording device, which is intended to at least partially solve the above technical problems.
(II) technical scheme
In order to achieve the above purpose, the technical solution adopted by the invention is as follows:
the utility model provides a contactless electric quantity measuring and recorder, the device includes power module 1, non-contact hall sensor 2, main control circuit board 3, storage module 4 and wireless radio frequency module 5, wherein: the power module 1 is used for reducing the voltage of an external power supply and then respectively outputting the reduced voltage to the non-contact Hall sensor 2 and the main control circuit board 3; the non-contact Hall sensor 2 is used for measuring parameter data of the equipment to be measured and operation record information of the equipment to be measured in a non-contact mode in real time; the main control circuit board 3 is used for integrating the parameter data measured by the non-contact hall sensor 2 in real time to obtain integrated parameter data with a timestamp, and storing the integrated parameter data and the operation record information of the equipment to be measured in the storage module 4; the storage module 4 is used for storing the integration parameter data and the running record information of the equipment to be tested; the wireless radio frequency module 5 is configured to transmit an instruction received from an external device to the main control circuit board 3, and wirelessly transmit the integration parameter data stored in the storage module 4 and the operation record information of the device to be tested to the external device according to a control instruction received from the main control circuit board 3.
In the above scheme, the power module 1 is a dc power module, and one end of the dc power module is connected to an external power supply through an aviation plug 11.
In the above scheme, the aviation plug 11 is configured to convert 220V ac voltage of an external power supply into 48V dc voltage and provide the 48V dc voltage to the dc power supply module, and the dc power supply module further steps down the 48V dc voltage to 5V and then outputs the voltage to the non-contact hall sensor 2 and the main control circuit board 3, respectively.
In the scheme, the aviation plug 11 is cuboid in shape, has the size phi of 12.5 multiplied by 35mm, and supplies power of 48V direct current and 8W.
In the above scheme, the non-contact hall sensor 2 is a hall coulometer, the hall coulometer has a round hole, and a power line of the device to be measured passes through the round hole during measurement, so that non-contact measurement and recording are realized.
In the above scheme, the non-contact hall sensor 2 measures the parameter data of the device to be measured in real time in a non-contact manner, where the parameter data at least includes voltage, current, electric quantity, and power.
In the above scheme, the storage module 4 adopts a Micro-SD memory card, and the Micro-SD memory card is embedded in the main control circuit board 3.
In the above scheme, the external device is an upper computer, which is equipped with control software matched with the contactless electricity quantity measuring and recording device, and the upper computer performs wireless control and wireless data transmission on the contactless electricity quantity measuring and recording device by operating the control software and the wireless radio frequency module 5.
In the above scheme, the upper computer performs wireless control and wireless data transmission on the contactless electric quantity measuring and recording device by operating the control software and the wireless radio frequency module 5, and the method includes: the upper computer runs the control software to send a control instruction to the non-contact electric quantity measuring and recording device; the wireless radio frequency module 5 of the non-contact electric quantity measuring and recording device transmits the received control instruction to the main control circuit board 3; and the master control circuit board 3 returns the integration parameter data stored in the storage module 4 and the running record information of the equipment to be tested to the upper computer through the wireless radio frequency module 5 according to the control instruction.
In the above scheme, the device further comprises a wireless debugging module 6, the wireless debugging module 6 is provided with a receiving end and a transmitting end, the receiving end is in wired or wireless connection with the main control circuit board 3, the transmitting end is in wireless connection with the upper computer, and the upper computer carries out remote burning and wireless debugging on the non-contact electric quantity measuring and recording device through the wireless debugging module 6 and the singlechip development software installed on the upper computer.
(III) advantageous effects
According to the technical scheme, the non-contact electric quantity measuring and recording device provided by the invention has at least one of the following beneficial effects:
1. the non-contact electric quantity measuring and recording device provided by the invention can be installed inside or outside equipment to be measured, the power line of the equipment to be measured penetrates through the round hole during measurement by adopting the non-contact Hall sensor with the round hole, the current, the voltage, the electric quantity, the power of the equipment to be measured and the operation recording information of the equipment to be measured can be measured and recorded in a non-contact manner, the non-contact and high-precision measurement and recording of parameters such as the operation current and the operation voltage of high-power equipment and a large and medium-sized robot are realized, and the non-contact electric quantity measuring and recording device has the advantages of portability, easiness in installation, high safety, high precision and the like.
2. The contactless electric quantity measuring and recording device provided by the invention realizes wireless control and wireless data transmission on the contactless electric quantity measuring and recording device by adopting the wireless radio frequency module and the control software installed on the upper computer.
3. The non-contact electric quantity measuring and recording device provided by the invention realizes remote burning and wireless debugging of the non-contact electric quantity measuring and recording device by adopting the wireless debugging module and the singlechip development software installed on the upper computer.
4. The contactless electricity quantity measuring and recording device provided by the invention can be subjected to remote wireless debugging, so that the contactless electricity quantity measuring and recording device can run uninterruptedly for a long time, measures, records and stores parameters such as current, voltage, electricity quantity, power and the like uninterruptedly for a long time at the rate of 1Hz, and wirelessly reads data stored in the storage module through the upper computer to realize data transmission.
5. The non-contact electric quantity measuring and recording device provided by the invention follows a standardized design principle, adopts a modularized thought, is convenient to couple and connect with an external device, and is beneficial to replacement and upgrading of the device.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a contactless electricity measuring and recording apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a Hall coulometer having a circular aperture in the non-contact coulometric measurement and recording device of FIG. 1;
fig. 3 is a schematic structural diagram of another contactless electricity measuring and recording apparatus according to an embodiment of the invention.
Reference numerals:
the device comprises a power module 1, an aviation plug 11, a non-contact Hall sensor 2, a main control circuit board 3, a storage module 4, a wireless radio frequency module 5 and a wireless debugging module 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The non-contact electric quantity measuring and recording device provided by the invention can be installed inside or outside the equipment to be measured and used for measuring and storing various parameters of the equipment to be measured in real time, such as voltage, current, electric quantity, power and the like. Fig. 1 is a schematic structural diagram of a contactless electricity measuring and recording device according to an embodiment of the invention. This contactless electric quantity measurement and recorder include power module 1, non-contact hall sensor 2, main control circuit board 3, storage module 4 and wireless radio frequency module 5, wherein: and the power supply module 1 is used for reducing the voltage of an external power supply and then respectively outputting the voltage to the non-contact Hall sensor 2 and the main control circuit board 3. And the non-contact Hall sensor 2 is used for measuring the parameter data of the equipment to be measured and the operation record information of the equipment to be measured in real time in a non-contact mode. And the main control circuit board 3 is used for integrating the parameter data measured by the non-contact Hall sensor 2 in real time to obtain time-stamped integrated parameter data, and storing the integrated parameter data and the operation record information of the equipment to be tested in the storage module 4. And the storage module 4 is used for storing the integration parameter data and the operation record information of the equipment to be tested. And the wireless radio frequency module 5 is used for transmitting the instruction received from the external equipment to the main control circuit board 3, and wirelessly transmitting the integrated parameter data stored in the storage module 4 and the operation record information of the equipment to be tested to the external equipment according to the control instruction received from the main control circuit board 3.
In one embodiment of the present invention, as shown in fig. 1, the power module 1 is a dc power module, and one end of the dc power module is connected to an external power source through an aviation plug 11. The aviation plug 11 is used for converting 220V alternating voltage of an external power supply into 48V direct voltage to be supplied to the direct current power supply module, and the direct current power supply module further reduces the 48V direct voltage to 5V and then respectively outputs the voltage to the non-contact hall sensor 2 and the main control circuit board 3. Optionally, the aviation plug 11 is rectangular, has a size phi of 12.5 × 35mm, and supplies 48V direct current and 8W power.
In one embodiment of the present invention, the non-contact hall sensor 2 is a hall coulometer, as shown in fig. 2, and fig. 2 is a schematic structural diagram of the hall coulometer with a round hole in the non-contact electricity quantity measuring and recording device shown in fig. 1. The Hall coulometer is provided with a round hole, and a power line of the equipment to be measured penetrates through the round hole during measurement, so that non-contact measurement and recording are realized. Optionally, the non-contact hall sensor 2 measures parameter data of the device to be measured in real time in a non-contact manner, where the parameter data at least includes voltage, current, electric quantity, and power.
The non-contact electric quantity measuring and recording device provided by the invention has the advantages that the non-contact Hall sensor with the round hole is adopted, the power line of the equipment to be measured penetrates through the round hole during measurement, the current, the voltage, the electric quantity, the power of the equipment to be measured and the operation recording information of the equipment to be measured can be measured and recorded in a non-contact manner, the non-contact and high-precision measurement and recording of the parameters such as the operation current and the operation voltage of the large and medium-sized robots are realized, and the non-contact electric quantity measuring and recording device has the advantages of portability, easiness in installation, high safety, high precision and the like.
In an embodiment of the present invention, as shown in fig. 1, a storage module 4 is a Micro-SD memory card, and optionally, the Micro-SD memory card may be embedded in the main control circuit board 3; of course, the Micro-SD memory card may be disposed outside the main control circuit board 3. Optionally, the Micro-SD memory card is used for storing various integration parameter data such as voltage, current, electric quantity, power and the like obtained by real-time measurement, and information such as an operation record of the device to be tested. The wireless radio frequency module 5 is used for wirelessly transmitting files such as integration parameter data and operation records stored in the Micro-SD memory card to other equipment without extra connection through a data line.
In an embodiment of the present invention, as shown in fig. 1, the main control circuit board 3 reads data from the non-contact hall sensor 2, the data at least includes various parameter data such as voltage, current, electric quantity, power, and the like, which are obtained by the non-contact hall sensor 2 from the device to be measured in a non-contact manner in real time, and integrates the various parameter data, and after processing, integrated parameter data with a timestamp is obtained and stored in the Micro-SD memory card, which may be embedded in the main control circuit board.
In an embodiment of the present invention, as shown in fig. 1, the external device may be an upper computer, for example, a PC computer, which is installed with control software matching with the contactless electricity quantity measuring and recording device, and the upper computer performs wireless control and wireless data transmission on the contactless electricity quantity measuring and recording device by running the control software and the wireless rf module 5.
Optionally, the upper computer performs wireless control and wireless data transmission on the contactless electric quantity measuring and recording device by running the control software and the wireless radio frequency module 5, and specifically includes: the upper computer runs the control software to send a control instruction to the non-contact electric quantity measuring and recording device; the wireless radio frequency module 5 of the non-contact electric quantity measuring and recording device transmits the received control instruction to the main control circuit board 3; and the main control circuit board 3 returns the integration parameter data stored in the storage module 4 and the running record information of the equipment to be tested to the upper computer through the wireless radio frequency module 5 according to the control instruction.
The contactless electric quantity measuring and recording device provided by the invention realizes wireless control and wireless data transmission on the contactless electric quantity measuring and recording device by adopting the wireless radio frequency module 5 and the control software installed on the upper computer.
In another embodiment of the present invention, as shown in fig. 3, fig. 3 is a schematic structural diagram of another contactless electricity quantity measuring and recording apparatus according to an embodiment of the present invention. The non-contact electric quantity measuring and recording device further comprises a wireless debugging module 6, the wireless debugging module 6 is provided with a receiving end and a transmitting end, the receiving end is connected with the main control circuit board 3 in a wired or wireless mode, and the transmitting end is connected with the upper computer in a wireless mode. The upper computer carries out remote burning and wireless debugging on the non-contact electric quantity measuring and recording device through the wireless debugging module 6 and the singlechip development software installed on the upper computer.
Optionally, the processes of remote burning and wireless debugging of the contactless electric quantity measuring and recording device by the upper computer through the wireless debugging module 6 and the single chip microcomputer development software installed in the upper computer are as follows: the upper computer is connected with a sending end of the wireless debugging module 6, is matched with a receiving end of the wireless debugging module 6 connected with the non-contact electric quantity measuring and recording device, carries out electric quantity measuring and recording program compiling through single chip microcomputer development software (such as Keil single chip microcomputer development software) installed on the upper computer, and can carry out remote burning and wireless debugging on the non-contact electric quantity measuring and recording device.
The non-contact electric quantity measuring and recording device provided by the invention realizes remote burning and wireless debugging of the non-contact electric quantity measuring and recording device by adopting the wireless debugging module and the singlechip development software installed on the upper computer.
Furthermore, the contactless electricity measuring and recording device provided by the invention can be subjected to remote wireless debugging, so that the contactless electricity measuring and recording device can run uninterruptedly for a long time, measures, records and stores parameters such as current, voltage, electricity, power and the like uninterruptedly for a long time at the rate of 1Hz, and wirelessly reads data stored in the storage module through the upper computer to realize data transmission.
In addition, the non-contact electric quantity measuring and recording device provided by the invention follows a standardized design principle, adopts a modularized thought, is convenient to be coupled and connected with external equipment, and is beneficial to replacement and upgrading of the device.
The following describes the non-contact power parameter acquisition of the device to be measured by the non-contact power measuring and recording device provided by the present invention in detail with reference to fig. 1 to 3.
When the non-contact electric quantity measuring and recording device provided by the invention is used for carrying out non-contact electric quantity parameter acquisition on equipment to be measured, the non-contact electric quantity measuring and recording device comprises a main control board, a direct-current power supply module, a non-contact Hall coulometer VAC9010H, a storage card, a wireless radio frequency module, a shell and an aviation plug, the overall design and hardware connection diagrams of the non-contact electric quantity measuring and recording device are shown in fig. 1 to 3, and the Hall coulometer, the wireless radio frequency module and a Micro-SD storage card are connected with a main control circuit board. The main control circuit board adopts an STM32F407 chip, can process data collected by a Hall coulometer, and records current, voltage and electric quantity information to a Micro-SD memory card at a rate of 1 Hz. In addition, the main control circuit board can also transmit data in the Micro-SD memory card to an upper computer through a wireless radio frequency module connected with the main control circuit board.
The weight of the contactless electricity measuring and recording device provided by the invention is less than 1kg, and in one embodiment of the invention, the size of the host computer is about 99 x 88 x 63mm3The aviation plug is in a cuboid shape, the size is about phi 12.5 multiplied by 35mm, power is supplied by 48V direct current, the power is 8W, a power line of a tested device needs to penetrate through a round hole of a non-contact Hall coulometer in the non-contact electric quantity measuring and recording device provided by the invention during measurement, and the diameter of the power line is not more than 18 mm.
The non-contact electric quantity parameter acquisition is carried out on the equipment to be measured by utilizing the non-contact electric quantity measuring and recording device provided by the invention, on one hand, the complexity of the system can be reduced, the safety of the system is ensured, and the influence on the system to be measured caused by the fault of the measuring module is avoided; on the other hand, the method greatly simplifies the installation method and has higher portability.
Therefore, the non-contact electric quantity measuring and recording device provided by the invention can flexibly select the installation position, and the function of reading and recording various parameters (voltage, current, electric quantity and power) of the tested equipment in real time in a non-contact manner for a long time can be realized only by enabling the power line of the tested equipment to pass through the round hole of the non-contact type Hall coulometer in a non-contact manner no matter inside or outside the tested equipment.
The non-contact electricity measuring and recording device provided by the invention performs high-precision sensing acquisition, long-time uninterrupted recording and wireless transmission on the equipment to be measured, and is described in detail below with reference to fig. 1 to 3.
In order to realize the functions of high-precision non-contact electric quantity parameter acquisition, long-time uninterrupted recording and wireless transmission, a circuit schematic diagram is designed based on the STM32F 407. The adopted circuit devices comprise elements such as a main control chip, a resistor, a capacitor, a VRB4805YMD direct current power supply module, a TPS7333 voltage conversion module, an SP485 chip, an LED indicator light and the like. The designed circuit schematic diagram is respectively provided with TTL and RS485 serial interfaces for the wireless radio frequency module and the Hall coulombmeter. Based on the designed circuit schematic diagram, a hardware circuit is designed and a PCB real object is processed, the substrate of the PCB real object is made of FR-4 composite material and woven glass fiber cloth and epoxy resin adhesive, and the adhesive has good flame retardance and can be stably operated when the PCB is loaded for a long time.
In order to improve the acquisition precision, the recording real-time performance and the long-time operation stability of the sensing information of the non-contact electric quantity measuring and recording device provided by the invention, the targeted design is implemented on a software system related to the device. Firstly, in order to improve the real-time performance and accuracy of sensor data acquisition, a software system is developed based on an RT-Thread embedded operating system, and the sensor data acquisition, data preprocessing and data storage exist in the form of a plurality of parallel sub-threads, so that the accuracy and the real-time performance of the sensor data acquisition and processing are improved, and the risk of process conflict is reduced. Secondly, an efficient data storage mechanism and protocol are designed, and a large amount of high-precision sensor data are collected and written into an onboard 16GB memory card. In order to ensure the time uniqueness of data storage, each frame of data is written into the memory card and simultaneously writes the current timestamp into the memory card for data alignment processing on a later time scale. Finally, in order to ensure the readability and high fault tolerance of the stored data, the data format that the ID and the data content are stored simultaneously is adopted, so that the large-scale data failure caused by partial data damage can be avoided.
| ID | Data of |
| 0 | Voltage of |
| 1 | Electric current |
| 2 | |
| 3 | Power of |
| 4 | Run time (hour) |
| 5 | Run time (minutes) |
| 6 | Run time (seconds) |
The non-contact electric quantity measuring and recording device provided by the invention has the advantages that the measuring range of the voltage is 0-90V, and the relative testing precision is 1.67%; the current measurement range is 0-200A, the relative test precision is 0.89%, and the current measurement range has the characteristics of wide range and high precision.
The contactless electricity quantity measuring and recording device provided by the invention can measure the current and the voltage of the equipment to be measured in real time in a contactless state, record the electricity quantity parameters uninterruptedly for a long time and store data into an SD card; data in the SD card can be read wirelessly through an upper computer, and data transmission is achieved.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a contactless electric quantity measuring and recorder, its characterized in that, the device includes power module (1), non-contact hall sensor (2), main control circuit board (3), storage module (4) and wireless radio frequency module (5), wherein:
the power supply module (1) is used for reducing the voltage of an external power supply and then respectively outputting the reduced voltage to the non-contact Hall sensor (2) and the main control circuit board (3);
the non-contact Hall sensor (2) is used for measuring parameter data of the equipment to be measured and operation record information of the equipment to be measured in a non-contact mode in real time;
the main control circuit board (3) is used for integrating the parameter data measured by the non-contact Hall sensor (2) in real time to obtain integrated parameter data with a timestamp, and storing the integrated parameter data and the running record information of the equipment to be measured in the storage module (4);
the storage module (4) is used for storing the integration parameter data and the running record information of the equipment to be tested;
the wireless radio frequency module (5) is used for transmitting an instruction received from an external device to the main control circuit board (3), and wirelessly transmitting the integration parameter data stored in the storage module (4) and the running record information of the device to be tested to the external device according to the control instruction received from the main control circuit board (3).
2. The contactless electricity measuring and recording device according to claim 1, characterized in that the power module (1) is a dc power module, one end of which is connected to an external power source through an aviation plug 11.
3. The contactless electricity measuring and recording device according to claim 2, wherein the aviation plug 11 is configured to convert 220V ac voltage of an external power supply into 48V dc voltage to be provided to the dc power supply module, and the dc power supply module further steps down the 48V dc voltage to 5V and then outputs the voltage to the contactless hall sensor (2) and the main control circuit board (3), respectively.
4. The contactless electricity measuring and recording device according to claim 2 or 3, wherein the aviation plug 11 is rectangular, has a size phi of 12.5 x 35mm, and supplies 48V direct current and 8W power.
5. The contactless electricity quantity measuring and recording device according to claim 1, characterized in that the contactless hall sensor (2) is a hall coulometer having a round hole through which a power line of the device under test passes during measurement, so as to realize contactless measurement and recording.
6. The contactless electricity measuring and recording device according to claim 1, wherein the contactless hall sensor (2) measures the parameter data of the device under test in real time in a contactless manner at least including voltage, current, electricity and power.
7. The contactless electricity quantity measuring and recording device according to claim 1, characterized in that the storage module (4) adopts a Micro-SD memory card, which is built in the main control circuit board (3).
8. The device according to claim 1, wherein the external device is an upper computer, and a control software matched with the device is installed on the external device, and the upper computer performs wireless control and data transmission on the device by operating the control software and the radio frequency module (5).
9. The device for measuring and recording electric quantity in a contactless manner according to claim 8, wherein the upper computer performs wireless control and wireless data transmission on the device for measuring and recording electric quantity in a contactless manner by operating the control software and the wireless radio frequency module (5), and the device comprises:
the upper computer runs the control software to send a control instruction to the non-contact electric quantity measuring and recording device;
the wireless radio frequency module (5) of the non-contact electric quantity measuring and recording device transmits the received control instruction to the main control circuit board (3); and
and the master control circuit board (3) returns the integrated parameter data stored in the storage module (4) and the running record information of the equipment to be tested to the upper computer through the wireless radio frequency module (5) according to the control instruction.
10. The contactless electricity measuring and recording device according to claim 1 or 8, further comprising a wireless debugging module (6), wherein the wireless debugging module (6) has a receiving end and a transmitting end, the receiving end is connected to the main control circuit board (3) in a wired or wireless manner, the transmitting end is connected to the upper computer in a wireless manner, and the upper computer performs remote burning and wireless debugging on the contactless electricity measuring and recording device through the wireless debugging module (6) and the single chip microcomputer development software installed on the upper computer.
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Application publication date: 20220208 |