CN118091232A - Device for reducing distortion of measuring signal of current sensor - Google Patents
Device for reducing distortion of measuring signal of current sensor Download PDFInfo
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Abstract
The invention discloses a device for reducing distortion of a measuring signal of a current sensor, which belongs to the technical field of sensor measurement and solves the problems that the distortion of the measuring signal of the current sensor after long-time use and the oversized auxiliary device influence the installation of the current sensor and the auxiliary device easily occupy the running circuit of the current sensor; according to the invention, the current detection component is arranged to realize real-time detection of the running current of the current sensor, so that the occurrence of distortion of a measurement signal is reduced; the thickness of the whole auxiliary device is reduced by arranging a processing chip board made of an integrated circuit board material, so that the size of the auxiliary device is reduced; the auxiliary device is independently powered by the auxiliary power distribution assembly, so that the power distribution pressure of the current sensor is reduced.
Description
Technical Field
The invention belongs to the technical field of sensor auxiliary equipment, and particularly relates to a device for reducing distortion of a measuring signal of a current sensor.
Background
With the continuous development and progress of power supply technology, in order to automatically detect and display current, and have an automatic protection function and higher intelligent control when dangerous situations such as overcurrent and overvoltage occur, the power supply technology with sensing detection, sensing sampling and sensing protection gradually trends, and a sensor for detecting current or voltage is generated and is gradually favored by vast power supply designers in China; the current sensor is a detection device, can sense the information of the detected current, and can convert the information sensed by detection into an electric signal meeting certain standard requirements or other information output in a required form according to a certain rule so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like; the current sensor is also called a magnetic sensor, and can be used for household appliances, smart grids, electric vehicles and wind power generation.
There are a number of causes of failure of the current sensor, the following are several common causes of failure: power failure: if the power supply of the current sensor is damaged or cannot be connected, the current sensor cannot work normally; coil failure: when the current sensor coil is damaged or fails, the measurement of the current is disturbed; environmental interference: these external factors may affect the measurement results of the sensor if the current sensor is in a noisy or electromagnetic field strength environment.
In the prior art, the current sensor has the following problems; firstly, as the service time of the current sensor increases, the problem of measuring signal distortion can occur; secondly, the current sensor is small in volume and the size of the device for assisting is oversized; finally, the auxiliary device may take up additional amounts of current, affecting the life of the sensor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention discloses a device for reducing the signal distortion detected by a current sensor, which has smaller device volume and can independently distribute power.
In order to achieve the technical effects, the invention adopts the following technical scheme:
an apparatus for reducing distortion of a measurement signal of a current sensor, comprising
A protective housing; for providing mounting locations and isolating internal components to achieve protection of internal components; the protective shell realizes that the mounting element is arranged in the protective shell through a cavity type box-shaped structure;
an in-pair monitoring assembly; the system is used for monitoring, identifying and judging the appearance part of the current sensor through the laser and the vision sensor; the in-pair monitoring assembly is matched with the visual sensor through the laser emission device to realize external scanning of the current sensor;
Processing the chip board; the information processing device is used for extracting, identifying and summarizing information transmitted to the central chip, and configuring a corresponding scheme according to the extracted content; the processing chip board realizes extraction, identification and processing of the transmission information of the current detection component through a feature extraction model and a feature identification method;
A current detection assembly; the method is used for being connected into a current sensor operation circuit to detect whether the operation current of the current sensor is abnormal in real time; the current detection component is used for detecting the current of the current sensor through the oscilloscope and the lead so as to judge whether the current sensor has the distortion of the test signal or not;
An auxiliary power distribution assembly; the sensor is used for configuring operation power for the auxiliary device and relieving the current burden of the sensor; the auxiliary power distribution assembly realizes independent power storage and power distribution through a storage battery so as to reduce the power distribution pressure of the current sensor;
an electromagnetic adsorption assembly; the current sensor is used for connecting the auxiliary device and the current sensor and absorbing current dissipated by the sensor; the electromagnetic adsorption component generates an electromagnetic field through the inductance coil so as to realize that the auxiliary device is adsorbed and mounted on the current sensor through the electromagnetic field;
an auxiliary heat dissipation assembly; the auxiliary current sensor is used for assisting heat dissipation of the current sensor and the auxiliary device; the auxiliary heat dissipation component is used for blowing air to the inside of the protective shell through the heat dissipation fan and the heat dissipation holes so as to realize auxiliary natural heat dissipation;
a hierarchical alarm assembly; the system is used for outputting alarms according to the number and the type of fault contents through different lamplight and loudspeaker assemblies;
The in-pair monitoring assembly is arranged at the bottom of the processing chip board through a mounting piece, the processing chip board is fixedly arranged at the middle position of the protective shell through a mounting piece, the electromagnetic adsorption assembly is arranged on the surface of the current sensor through electromagnetic adsorption, the electromagnetic adsorption assembly is fixedly arranged at the bottom of the protective shell through a mounting piece, the in-pair monitoring assembly, the current detection assembly, the electromagnetic adsorption assembly, the auxiliary heat dissipation assembly and the grading alarm assembly are electrically connected with the auxiliary power distribution assembly, the auxiliary power distribution assembly is arranged at the tail position of the protective shell, the auxiliary heat dissipation assembly is installed on the side of the protective housing, the auxiliary heat dissipation assembly penetrates through the side plate of the protective housing, the current detection assembly is installed at the bottom of the protective housing through the installation piece, the current detection assembly penetrates through the protective housing and extends to the inside of the current sensor, the grading alarm assembly is installed at the outer side of the top of the protective housing through wire connection, the inner monitoring assembly is installed at the bottom of the protective housing, and the inner monitoring assembly is arranged at the middle position of the electromagnetic adsorption assembly and the current detection assembly.
As a further description of the above-described arrangements,
The protective shell is of a rectangular cavity box structure with a notch, and the protective shell is used for protecting elements in installation and isolating air through the box structure to prevent oxidation; the protective housing includes fan storehouse, battery support, chip mounting groove and euphotic layer, the fan storehouse sets up the left side of protective housing, the battery support sets up the inboard central point of backplate of protective housing puts, euphotic layer covers the concatenation and is in the bottom of protective housing, the chip mounting groove sets up the inside of protective housing, the chip mounting groove sets up the top of battery support.
As a further description of the above-described arrangements,
The device is characterized in that the internal monitoring assembly scans the connected current sensor through infrared laser and a vision sensor and transmits a scanning result to the processing chip board, the internal monitoring assembly comprises a laser emitting device, a vision sensor and a merging processing unit, the laser emitting device is mounted at the bottom of the processing chip board, the laser emitting device is connected with the auxiliary power distribution assembly through a wire, the vision sensor is mounted on the side face of the laser emitting device in a fitting manner, the vision sensor and the laser emitting device are connected with the merging processing unit through tail wires, the merging processing unit is arranged at the bottom of the processing chip board, and the laser emitting device and the vision sensor are used for scanning the current sensor through a light-transmitting layer of the protective casing.
As a further description of the above-described arrangements,
The processing chip board realizes the feature extraction and recognition of the information transmitted by the in-pair monitoring component and the current detection component through a feature extraction model and a feature recognition method; the processing chip board comprises an image information interface, a sound card, a central chip, a signal conversion unit, a circuit board, a model training module and a characteristic recognition unit, wherein the input end of the image information interface is connected with the output end of the in-pair monitoring assembly through a wire, the output end of the sound card is connected with the input end of the grading alarm assembly through a wire, the central chip, the image information interface, the sound card, the signal conversion unit, the model training module and the characteristic recognition unit are arranged on the upper side of the circuit board, the circuit board is fixedly clamped in a chip mounting groove of the protective shell, the central chip is arranged at the central position of the circuit board, a scheme database corresponding to the quantity and the type of characteristic information is preset in the central chip, the model training module and the characteristic recognition unit are arranged in the central chip, the model training module is electrically connected with the characteristic recognition unit through a wire, the input end of the signal conversion unit is connected with the output end of the central chip through a wire, and the output end of the signal conversion unit is connected with the input end of the sound card through a wire; the circuit board is manufactured by bonding layered glass fibers and is clamped and mounted in a chip mounting groove of the protective shell.
As a further description of the above-described arrangements,
The model training module adopts an online learning algorithm, and the online learning algorithm realizes real-time and rapid feedback adjustment model adjustment by online feedback data and training of each sample, and performs high-density screening and high-efficiency identification on the data passing through the model; training process of the feedback adjustment model: firstly, setting the learning rate and regularization parameter value of a model; secondly, setting parallel learning numbers of the model; thirdly, continuously filling data into the data pool; fourth, at the same time, different parallel lines can fetch data from the data pool for training; finally, after the data is grabbed, merging models of different lines, and storing the models; the formula expression of the online learning algorithm is as follows:
ωt=,i=- （1）
in the formula (1), i is a characteristic parameter; t represents an iteration parameter; Is a characteristic value; wherein:
（2）
（3）
（4）
In the formula (2), the formula (3) and the formula (4), Representing the degree of dispersion of the algorithm parameters; /(I)For the accumulated gradient from the front of the algorithm to the t round, the normal accumulated gradient/>Generally expressed as/>；/>Is a custom intermediate variable; wherein:
（5）
（6）
In the formulas (5) and (6), Representing the learning rate of the algorithm, all feature dimensions of the feedback adjustment algorithm use the same learning rate.
As a further description of the above-described arrangements,
The current detection component detects the current of the current sensor according to an oscilloscope principle so as to judge whether the current sensor has abnormal current or not; the current detection assembly comprises an oscilloscope, the current detection assembly is arranged on the outer side of the bottom of the protective shell, the oscilloscope is embedded and installed at the bottom of the protective shell, and the detection end of the oscilloscope is connected into the current sensor.
As a further description of the above-described arrangements,
The electromagnetic adsorption assembly is connected with the current sensor and the auxiliary device through a magnetic adsorption principle, and realizes the absorption of dissipation current through an electromagnetic field and a current sensor processing method, and comprises an inductance coil, a magnetic adsorption rod, a conductive connecting end and an insulating shell, wherein the inductance coil is arranged in the insulating shell, the magnetic adsorption rod penetrates through the conductive connecting end, the magnetic adsorption rod is arranged at the top of the insulating shell, the insulating shell is fixedly arranged at the bottom of the protective shell in a welding manner, and the conductive connecting end is arranged on the middle surface of the insulating shell; the inductance coil generates an electromagnetic field in the conductive connecting end through an electromagnetic field principle, and the electromagnetic adsorption component adsorbs the current which is arranged on the surface of the current sensor and overflows from the current sensor through the electromagnetic field.
As a further description of the above-described arrangements,
The system is characterized in that the grading alarm assembly is used for realizing the alarm voice configuring different frequencies and output channels by reading a voice scheme output by the processing chip board, the grading alarm assembly comprises a loudspeaker, a small alarm lamp, a large alarm lamp and a scheme reading unit, the loudspeaker is arranged at the bottom of an inner top plate of the protective shell, the input ends of the loudspeaker and the scheme reading unit are connected with the output end of a sound card of the processing chip board through wires, the scheme reading unit is arranged on the processing chip board, the output end of the scheme reading unit is connected with the input ends of the small alarm lamp and the large alarm lamp through wires, the scheme reading unit is used for controlling the flicker of the small alarm lamp and the large alarm lamp, and the loudspeaker is used for outputting audio information through the sound card.
As a further description of the above-described arrangements,
The auxiliary power distribution assembly comprises a driving motor, a storage battery and a transmission part, wherein the driving motor is connected with the storage battery through the transmission part, the driving motor is arranged at the central position of the protective shell, and the storage battery is arranged on a battery bracket of the protective shell through a mounting part; the auxiliary radiating assembly comprises a radiating fan, a fan transmission rod and radiating holes, wherein the radiating fan is fixedly installed in a fan bin of the protective shell in a clamping mode, the radiating fan is connected with the driving motor through the fan transmission rod, the radiating holes are formed in side plates of the protective shell, the radiating holes and the radiating fan are arranged on the same vertical line, and the radiating fan penetrates through the side plates of the protective shell.
As a further description of the above-described arrangements,
A method of reducing distortion of a measured signal of a current sensor, comprising the steps of:
S1, splicing an installation auxiliary device on an installation foot of a current sensor, inserting a connecting piece into an operation circuit of the current sensor, and adsorbing the auxiliary device by an electromagnetic adsorption assembly to realize stable installation on the current sensor;
s2, starting a switch of an auxiliary device, starting an auxiliary power distribution assembly to work, collecting and displaying current parameters of the current sensor by an oscilloscope of the current detection assembly, and outputting a current signal to a processing chip board for processing;
S3, synchronously starting the internal monitoring assembly, emitting infrared laser by the laser emitting device, collecting images through the vision sensor, and outputting collected image information to the processing chip board;
S4, converting the current signals and the image information by the processing chip board, outputting the result to the central chip for feature extraction and identification to obtain an abnormal information group;
s5, the processing chip board extracts corresponding scheme information in the scheme database according to the number and the type of the abnormal information, performs data conversion on the scheme information, and outputs a processing scheme to the sound card and the scheme reading unit;
s6, the sound card and the scheme reading unit read and identify the electric signals and control the grading alarm assembly to alarm; the electromagnetic adsorption component absorbs the escaping current on the surface of the current sensor under the control of the processing chip board so as to reduce the distortion of the measuring signal of the current sensor.
In summary, the invention has the positive and beneficial effects that:
1. According to the invention, the current detection assembly is arranged to detect the current amount of the current sensor, and the grading alarm assembly plays voice to guide maintenance personnel to notice the fault problem of the sensor, so that the problem of measuring signal distortion of the current sensor is reduced;
2. According to the invention, the classification alarm assembly is arranged to guide staff to quickly confirm the fault condition and damage degree; the size reduction of the auxiliary device is achieved by providing a processing chip board of the integrated circuit board type and a compression molded protective housing;
3. According to the invention, the electromagnetic adsorption component is arranged to realize adsorption and installation on the surface of the current sensor, so that the situation that the auxiliary device blocks the operation of the sensor is reduced; the storage battery is arranged in the auxiliary device to realize that the running electric quantity is configured in the auxiliary device, so that the distribution pressure of the sensor is reduced;
4. In the invention, the appearance state of the sensor is monitored by arranging the laser scanning device, and the situation that the sensor is prevented from being damaged by an infrared receiving head, a triode and a remote control receiving decoder is prevented from being damaged by the monitoring sensor is realized;
5. according to the invention, the touch screen and the control assembly are arranged at the top of the auxiliary device to control the components in the device and display the results, so that the working state and the element state of the current sensor in the device can be conveniently observed and monitored in real time by an operator.
Drawings
FIG. 1 is a schematic diagram of an apparatus for reducing distortion of a measurement signal of a current sensor;
FIG. 2 is a flow chart of a method of an apparatus for reducing distortion of a measured signal of a current sensor;
FIG. 3 is a schematic diagram of a processing chip board structure of an apparatus for reducing distortion of a measurement signal of a current sensor;
FIG. 4 is a schematic diagram of a magnetic field for reducing the electromagnetic field absorbed by a signal distortion device of a current sensor;
FIG. 5 is a schematic perspective view of an apparatus for reducing distortion of a measurement signal of a current sensor;
In the figure, 1 protective housing, 101 fan bin, 102 battery support, 103 chip mounting groove, 104 light transmission layer, 2 in-pair monitoring component, 201 laser emission device, 202 visual sensor, 203 merging processing unit, 3 processing chip board, 301 image information interface, 302 sound card, 303 central chip, 304 signal conversion unit, 305 circuit board, 306 model training module, 307 characteristic identification unit, 4 current detection component, 401 oscilloscope, 5 auxiliary distribution component, 501 driving motor, 502 storage battery, 503 driving part, 6 electromagnetic adsorption component, 601 inductance coil, 602 magnetic suction rod, 603 conductive connection end, 604 insulating housing, 7 auxiliary heat dissipation component, 701 heat dissipation fan, 702 fan driving rod, 703 heat dissipation hole, 8 classified alarm component, 801 loudspeaker, 802 small alarm lamp, 803 large alarm lamp, 804 scheme reading unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, an apparatus for reducing distortion of a measurement signal of a current sensor includes
A protective case 1; for providing mounting locations and isolating internal components to achieve protection of internal components; the protective housing 1 realizes that the mounting element is arranged inside the protective housing 1 through a cavity type box-shaped structure;
An in-pair monitoring assembly 2; the system is used for monitoring, identifying and judging the appearance part of the current sensor through the laser and the vision sensor; the in-pair monitoring assembly 2 realizes external scanning of the current sensor through the cooperation of the laser emitting device 201 and the visual sensor 202;
Processing the chip board 3; the information processing device is used for extracting, identifying and summarizing information transmitted to the central chip, and configuring a corresponding scheme according to the extracted content; the processing chip board 3 realizes extraction, identification and processing of the transmission information of the current detection component 4 through a feature extraction model and a feature identification method;
a current detection component 4; the method is used for being connected into a current sensor operation circuit to detect whether the operation current of the current sensor is abnormal in real time; the current detection component 4 detects the current of the current sensor through the oscilloscope 401 and the lead so as to judge whether the current sensor has the distortion of the test signal;
An auxiliary power distribution assembly 5; the sensor is used for configuring operation power for the auxiliary device and relieving the current burden of the sensor; the auxiliary power distribution assembly 5 realizes independent power storage and power distribution through the storage battery 502 so as to realize the reduction of the power distribution pressure of the current sensor;
an electromagnetic adsorption assembly 6; the current sensor is used for connecting the auxiliary device and the current sensor and absorbing current dissipated by the sensor; the electromagnetic adsorption component 6 generates an electromagnetic field through the inductance coil 601 to realize adsorption and installation of the auxiliary device on the current sensor through the electromagnetic field;
an auxiliary heat dissipation assembly 7; the auxiliary current sensor is used for assisting heat dissipation of the current sensor and the auxiliary device; the auxiliary heat dissipation assembly 7 is used for blowing air to the inside of the protective shell 1 through a heat dissipation fan 701 and heat dissipation holes 703 so as to realize auxiliary natural heat dissipation;
A hierarchical alarm assembly 8; the system is used for outputting alarms according to the number and the type of fault contents through different lamplight and loudspeaker assemblies;
The utility model discloses a protection device, including protection shell 1, to interior monitoring component 2, electric current detection component 4, electric current detection component 6, supplementary radiating component 7 and hierarchical warning component 8 with supplementary distribution component 5 electric connection, supplementary distribution component 5 sets up the afterbody position of protection shell 1, supplementary radiating component 7 is installed on the side of protection shell 1, supplementary radiating component 7 runs through the curb plate of protection shell 1, electric current detection component 4 is installed through the mounting at the bottom of protection shell 1, electric current detection component 4 runs through protection shell 1 extends to inside the electric current sensor, hierarchical warning component 8 is installed through wire connection in the top outside of protection shell 1, to interior monitoring component 2 is installed the afterbody position of protection shell 1, supplementary radiating component 7 is installed on the side of protection shell 1, supplementary radiating component 7 runs through the curb plate of protection shell 1, electric current detection component 4 is in the centre of protection shell 1.
In the above embodiment: the protective shell 1 is of a rectangular cavity box structure with a notch, and the protective shell 1 realizes the protection of elements in installation and isolation of air through a box structure to prevent oxidation; the protection shell 1 comprises a fan bin 101, a battery support 102, a chip mounting groove 103 and a light-transmitting layer 104, wherein the fan bin 101 is arranged on the left side of the protection shell 1, the battery support 102 is arranged at the center position of the inner side of a back plate of the protection shell 1, the light-transmitting layer 104 is spliced at the bottom of the protection shell 1 in a covering mode, the chip mounting groove 103 is arranged in the protection shell 1, and the chip mounting groove 103 is arranged above the battery support 102.
In the specific embodiment: the protective shell 1 is made of PVC plastic plates, and the PVC plastic plates have the advantages of light weight, strong plasticity, good insulativity, good wear resistance, excellent mechanical properties and slight deformation; the fan bin 101 is provided with an annular groove, a filter screen is arranged at the connection position of the fan bin 101 and the inner cavity of the protection shell 1, the filter screen is used for isolating the inner cavity of the protection shell 1 from the fan bin 101 so as to prevent foreign matters and dust from affecting a fan and prevent components in the protection shell 1 from being affected due to overlarge wind power of the fan, a buffer layer is arranged in the fan bin 101, and the buffer layer is used for protecting a cooling fan 701 and a fan transmission rod 702 which are arranged in the fan bin 101 through soft nylon materials; the battery support 102 is made of a low-carbon alloy material, and has the remarkable advantages of good mechanical property and rigidity and low cost, and the battery support 102 is fixedly arranged at the center position of the inner side of the back plate of the protective shell 1 through screws; the light-transmitting layer 104 is manufactured by covering a glass surface with a polyurethane film, the light-transmitting layer 104 is arranged at the bottom of the protective housing 1, the light-transmitting layer 104 replaces the bottom surface of the protective housing 1 to be the glass surface, the polyurethane film is adhered and attached to the top of the glass surface through an adhesive tape, and the polyurethane film has the remarkable advantages of good light transmittance, scratch resistance, yellowing resistance, super toughness, dust resistance, oil resistance, moisture resistance and adjustable tensile stress.
In the above embodiment: the in-pair monitoring assembly 2 scans the connected current sensor through infrared laser and a vision sensor and transmits a scanning result to the processing chip board 3, the in-pair monitoring assembly 2 comprises a laser emitting device 201, a vision sensor 202 and a merging processing unit 203, the laser emitting device 201 is mounted at the bottom of the processing chip board 3, the laser emitting device 201 is connected with the auxiliary power distribution assembly 5 through a wire, the vision sensor 202 is mounted on the side face of the laser emitting device 201 in a fitting manner, the vision sensor 202 and the laser emitting device 201 are connected with the merging processing unit 203 through tail wires, the merging processing unit 203 is arranged at the bottom of the processing chip board 3, and the laser emitting device 201 and the vision sensor 202 realize the scanning of the current sensor through a light-transmitting layer 104 of the protective shell 1.
In the specific embodiment: the laser emission device 201 is configured to emit an infrared laser beam to the outer surface of the current sensor through an infrared lamp and a distribution line which are internally installed, the infrared laser beam is configured to reflect the infrared laser beam to the vision sensor 202 through a light emission principle, and the vision sensor 202 is configured to collect information transmitted by the infrared laser beam through a photosensitive element and transmit the information to the merging processing unit 203; the model of the vision sensor 202 is ISSNAPP AI vision sensor, and compared with the traditional CDD type sensor, the ISSNAPP AI vision sensor has the advantage of improving the speed of acquisition and analysis by performing image analysis through embedded AI; the laser emitting device 201 is an industrial noise reduction type light infrared emitter, and compared with a traditional infrared emitter, the industrial noise reduction type light infrared emitter has the advantages of noise reduction, lower required charge, low total harmonic distortion rate, and larger emitting range and receiving range.
In the above embodiment: the processing chip board 3 realizes the feature extraction and recognition of the information transmitted by the in-pair monitoring component 2 and the current detection component 4 through a feature extraction model and a feature recognition method; the processing chip board 3 comprises an image information interface 301, an acoustic card 302, a central chip 303, a signal conversion unit 304, a circuit board 305, a model training module 306 and a feature recognition unit 307, wherein the input end of the image information interface 301 is connected with the output end of the in-pair monitoring component 2 through a wire, the output end of the acoustic card 302 is connected with the input end of the grading alarm component 8 through a wire, the central chip 303, the image information interface 301, the acoustic card 302, the signal conversion unit 304, the model training module 306 and the feature recognition unit 307 are arranged on the upper side of the circuit board 305, the circuit board 305 is clamped and fixed in a chip mounting groove 103 of the protective housing 1, the central chip 303 is arranged in the central position of the circuit board 305, a scheme database 308 corresponding to the quantity and the type of feature information is preset in the central chip 303, the model training module 306 and the feature recognition unit 307 are arranged inside the central chip 303, the model training module 306 is electrically connected with the feature recognition unit 307 through a wire, the input end of the signal conversion unit 304 is connected with the output end of the chip 303 through a wire, and the output end of the signal conversion unit 302 is connected with the input end of the acoustic card through the wire; the circuit board 305 is manufactured by bonding layered glass fibers, and the circuit board 305 is clamped and mounted in the chip mounting groove 103 of the protective housing 1.
In the specific embodiment: the image information interface 301 outputs the guiding data information to the inside of the hub chip 303 through a data interface protocol, wherein the data interface protocol is a serial bus interface protocol, and the serial bus interface protocol has the characteristics that a data line and a signal line are independently used in the process of data transmission, and the clock frequency of the transmission is kept independent; the model of the sound card 302 is selected as an integrated Realtek board sound card, and the integrated Realtek board sound card has the advantages of meeting the Rev2.3 specification, being compatible with multiple channels, having higher signal to noise ratio, low overall cost and fine sampling specification; the model of the hub chip 303 is selected as a GPU image information processing chip, and the GPU image information processing chip has the advantages of integrated circuit elements, smaller size, reduced dependence of a display card on a CPU, extremely strong capability of processing an image, extremely strong display capability and processing capability, higher display speed and compatibility with a 3D image; the GPU image information processing chip is characterized by comprising a traditional Z-buffer algorithm, wherein the principle of the traditional Z-buffer algorithm is that before the attribute value of each point on each surface of a display object is filled into a corresponding unit of a frame buffer, the Z-coordinate value of the point is compared with the value of the corresponding unit in the Z-buffer; the circuit board 305 is manufactured by bonding layered glass fibers, and the glass fiber bonding board has the characteristics of small size, thin thickness, extremely high maximum working temperature, convenient welding, high working efficiency and light weight; the feature recognition unit 307 realizes feature recognition of the image information by a PCA component analysis algorithm that realizes disassembly of the whole information by a component extraction formula whose expression is:
（7）
In the above formula (7), ω represents a standard orthogonal basis for determining a coordinate system after projective transformation, x represents standardized dimension data for representing a sample set to be analyzed, m represents the number of dimension data for determining a dimension change number of the coordinate system for projective transformation, i represents a cycle parameter for representing the current ith cycle, and z represents projection of x in a new dimension coordinate system for determining a position of a sample in the new dimension.
In the above embodiment: the model training module 306 adopts an online learning algorithm, and the online learning algorithm realizes real-time and rapid feedback adjustment model adjustment by online feedback data and training of each sample, and performs high-density screening and high-efficiency identification on the data passing through the model; training process of the feedback adjustment model: firstly, setting the learning rate and regularization parameter value of a model; secondly, setting parallel learning numbers of the model; thirdly, continuously filling data into the data pool; fourth, at the same time, different parallel lines can fetch data from the data pool for training; finally, after the data is grabbed, merging models of different lines, and storing the models; the formula expression of the online learning algorithm is as follows:
ωt=1,i=- （1）
in the formula (1), i is a characteristic parameter; t represents an iteration parameter; Is a characteristic value; wherein:
（2）
（3）
（4）
In the formula (2), the formula (3) and the formula (4), Representing the degree of dispersion of the algorithm parameters; /(I)The normal cumulative gradient/>, which is the cumulative gradient of the first 1 to t rounds of the algorithmGenerally expressed as/>；/>Is a custom intermediate variable; wherein:
（5）
（6）
In the formulas (5) and (6), Representing the learning rate of the algorithm, all feature dimensions of the feedback adjustment algorithm use the same learning rate.
In the specific embodiment: the deduction process of the formula (1) is as follows: the feedback adjustment characteristic weight formula is as follows:
（8）
Will be in equation (8) Unfolding to obtain:
（9）
The dimensions of the features are split into independent scalar minimization problems, and i is the ith feature to obtain:
（10）
Wherein the method comprises the steps of At/>Is not conductive at=0, thus pair/>Defined as the second derivative, derive W for equation (9) and let it be 0 to obtain:
（11）
For the formula (11) Discussion and substitution into equation (9) to obtain:
ωt=1,i=- （1）
In the above embodiment: the current detection component 4 detects the current of the current sensor according to an oscilloscope principle so as to judge whether the current sensor has abnormal current or not; the current detection assembly 4 comprises an oscilloscope 401, the current detection assembly 4 is arranged on the outer side of the bottom of the protective shell 1, the oscilloscope 401 is embedded and installed at the bottom of the protective shell 1, and the detection end of the oscilloscope 401 is connected into the current sensor.
In the specific embodiment: the oscilloscope 401 is composed of an electron tube amplifier, a scanning oscillator and a cathode ray tube, wherein the oscilloscope 401 is used for observing electronic waveforms, measuring frequency and voltage intensity and can be changed into periodic physical processes of an electric effect, and the principle of the oscilloscope 401 is that a narrow electron beam composed of high-speed electrons is utilized to strike a screen coated with fluorescent substances to generate fine light spots, and the light spots are observed to obtain waveform curves of various different signal amplitudes changing with time; compared with an analog oscilloscope, the DPO digital oscilloscope is adopted in the model of the oscilloscope 401, and has the obvious advantages of low performance requirements on an oscillograph tube, multiple triggering capacities and advanced triggering capacities, capability of displaying waveforms on a fluorescent screen of the oscillograph tube, capability of displaying characters, capability of calculating data of captured waveform parameters and capability of displaying answer numbers.
In the above embodiment: the electromagnetic adsorption assembly 6 is connected with a current sensor and an auxiliary device through a magnetic adsorption principle, and realizes the absorption of dissipation current through an electromagnetic field and a current sensor processing method, the electromagnetic adsorption assembly 6 comprises an inductance coil 601, a magnetic adsorption rod 602, a conductive connecting end 603 and an insulating shell 604, the inductance coil 601 is arranged inside the insulating shell 604, the magnetic adsorption rod 602 penetrates through the conductive connecting end 603, the magnetic adsorption rod 602 is arranged at the top of the insulating shell 604, the insulating shell 604 is fixedly arranged at the bottom of the protective shell 1 in a welding mode, and the conductive connecting end 603 is arranged on the middle surface of the insulating shell 604; the inductance coil 601 generates an electromagnetic field in the conductive connection terminal 603 through an electromagnetic field principle, and the electromagnetic adsorption component 6 adsorbs the current which is arranged on the surface of the current sensor and overflows from the current sensor through the electromagnetic field.
In the specific embodiment: the inductance coil 601 is an air core multi-layer variable deflection inductance coil, and the inductance coil 601 generates an electromagnetic field by an electromagnetic induction principle, wherein when current flows through one wire, a certain electromagnetic field is generated around the wire, and the wire of the electromagnetic field can induce the wire within the electromagnetic field; the electromagnetic field is an induction alternating electromagnetic field, and the alternating electromagnetic field is characterized by an electromagnetic field which changes with time; the insulating shell 604 is made of a PVC plastic plate which is the same as the protective shell 1; the magnetic attraction rod 602 realizes expansion and auxiliary control of an electromagnetic field through an expansion electromagnet, and the principle of the expansion electromagnet is that displacement or force output is realized through power on and power off.
In the above embodiment: the step alarm assembly 8 realizes configuring alarm voices of different frequencies and output channels by reading a voice scheme output by the processing chip board 3, the step alarm assembly 8 comprises a loudspeaker 801, a small alarm lamp 802, a large alarm lamp 803 and a scheme reading unit 804, the loudspeaker 801 is arranged at the bottom of an inner top plate of the protective shell 1, input ends of the loudspeaker 801 and the scheme reading unit 804 are connected with an output end of a sound card 302 of the processing chip board 3 through wires, the scheme reading unit 804 is arranged on the processing chip board 3, an output end of the scheme reading unit 804 is connected with input ends of the small alarm lamp 802 and the large alarm lamp 803 through wires, the scheme reading unit 804 controls flickering of the small alarm lamp 802 and the large alarm lamp 803, and the loudspeaker 801 outputs audio information through the sound card 302.
In the specific embodiment: the grading alarm assembly 8 is provided with a plurality of groups of alarm lamps matched with the loudspeakers to realize sounding so as to remind workers of checking the working state of the current sensor; in a specific embodiment, the small-sized alarm lamp 802 adopts the alarm lamp assembly with working parameters, the external dimension is 84 x 112mm, the rated working current is 250mA, the maximum working time is 15 hours, and the 3.7 volt lithium battery is configured; the working parameters of the large-sized warning lamp 803 are that the external dimension is 96 x 162mm, the rated working current is 250mA, the maximum working time is more than 18 hours, and a warning lamp component of a 3.7 volt lithium battery is configured; the small alarm lamp 802 and the large alarm lamp 803 are selected to have the advantages of long-term use, consistent power distribution requirements, convenience in synchronous power distribution, obvious overall dimension gap, convenience in recognition, energy conservation and environmental protection; the shells of the small alarm lamp 802 and the large alarm lamp 803 are made of engineering plastics, and compared with the traditional general plastic, the engineering plastics have the advantages of better heat resistance and cold resistance, better corrosion resistance, longer service life, lighter weight, better specific strength, better electrical insulation, better dimensional stability and difficult deformation; the loudspeaker 801 adopts an electrostatic field loudspeaker, and the electrostatic field loudspeaker has the characteristics of extremely light vibrating diaphragm mass, extremely excellent flexibility, extremely excellent analytic power and low distortion rate.
In the above embodiment: the auxiliary power distribution assembly 5 comprises a driving motor 501, a storage battery 502 and a transmission part 503, wherein the driving motor 501 is connected with the storage battery 502 through the transmission part 503, the driving motor 501 is arranged at the central position of the protective shell 1, and the storage battery 502 is installed on the battery bracket 102 of the protective shell 1 through an installation part; the auxiliary heat dissipation assembly 7 comprises a heat dissipation fan 701, a fan transmission rod 702 and heat dissipation holes 703, wherein the heat dissipation fan 701 is fixedly installed in the fan bin 101 of the protective housing 1 in a clamping manner, the heat dissipation fan 701 is connected with the driving motor 501 through the fan transmission rod 702, the heat dissipation holes 703 are formed in the side plate of the protective housing 1, the heat dissipation holes and the heat dissipation fan 701 are formed in the same vertical line, and the heat dissipation fan 701 penetrates through the side plate of the protective housing 1.
In the specific embodiment: the driving motor 501 is a miniature speed reducer with the power of 164W, and the miniature speed reducer has the advantages of smaller size, larger driving force, energy conservation, environmental protection and convenient installation; the storage battery 502 is selected as a dry-charge storage battery, and the dry-charge storage battery has the characteristics of high capacity, long service life, high CCA, good starting performance, excellent charging acceptance and vibration resistance, AGM (advanced gas chromatography) technology application, COS (advanced metal oxide semiconductor) and TTP (TTP) technology application, advanced sulfation prevention technology, advanced lead-calcium alloy technology, maintenance-free design, reliable overflow prevention, valve control sealing type design and dry-charge design, and long storage period, and is ready to use; the heat dissipation fan 701 is a circular axial flow fan with the diameter of 128mm and the driving voltage of 220V, and the circular axial flow fan has the advantages of higher flow rate, medium wind pressure, adaptive control component, convenient installation, clear architecture venation and convenient maintenance; the size of the radiating hole 703 is a 5mm circular hole, one end of the radiating hole 703, which is close to the outer side of the protective housing 1, is provided with a dust cover, the dust cover adopts an arc-shaped dome structure, impurities preventing dust and rainwater from entering the auxiliary device through the radiating hole are prevented, a filter layer is arranged between the dust cover and the radiating hole 703, and the filter layer is installed at one end of the radiating hole 703, which is close to the outer side of the protective housing 1, in a clamping and fixing mode.
A method of reducing distortion of a measured signal of a current sensor, comprising the steps of:
S1, splicing an installation auxiliary device on an installation foot of a current sensor, inserting a connecting piece into an operation circuit of the current sensor, and adsorbing the auxiliary device by an electromagnetic adsorption assembly to realize stable installation on the current sensor;
s2, starting a switch of an auxiliary device, starting an auxiliary power distribution assembly to work, collecting and displaying current parameters of the current sensor by an oscilloscope of the current detection assembly, and outputting a current signal to a processing chip board for processing;
S3, synchronously starting the internal monitoring assembly, emitting infrared laser by the laser emitting device, collecting images through the vision sensor, and outputting collected image information to the processing chip board;
S4, converting the current signals and the image information by the processing chip board, outputting the result to the central chip for feature extraction and identification to obtain an abnormal information group;
s5, the processing chip board extracts corresponding scheme information in the scheme database according to the number and the type of the abnormal information, performs data conversion on the scheme information, and outputs a processing scheme to the sound card and the scheme reading unit;
s6, the sound card and the scheme reading unit read and identify the electric signals and control the grading alarm assembly to alarm; the electromagnetic adsorption component absorbs the escaping current on the surface of the current sensor under the control of the processing chip board so as to reduce the distortion of the measuring signal of the current sensor.
An embodiment of a device for reducing distortion of a measuring signal of a current sensor is as follows: the auxiliary device is spliced and installed on the installation foot of the current sensor through the electromagnetic adsorption component 6, and the auxiliary device is firmly installed on the current sensor by inserting the magnetic adsorption rod 602 into the operation circuit of the current sensor; starting a switch of an auxiliary device, starting the auxiliary power distribution assembly 5 to work, collecting and displaying current parameters of the current sensor by an oscilloscope 401 of the current detection assembly 4, outputting a current signal to the processing chip board 3 for processing, synchronously starting the work of the internal monitoring assembly 2, transmitting an infrared laser beam by the laser transmitting device 201, performing image collection by the vision sensor 202, and outputting collected image information to the processing chip board 3; the image information interface 301 performs conversion processing on the current signal and the image information, and outputs the result to the hub chip 303 for feature extraction and identification, so as to obtain an abnormal information group; the hub chip 303 extracts corresponding scheme information in the scheme database according to the number and the type of the abnormal information, and performs data conversion on the scheme information, and the hub chip 303 outputs a processing scheme to the sound card 302 and the scheme reading unit 804; the sound card 302 and the scheme reading unit 804 read and identify the electric signals and control the hierarchical alarm assembly 8 to alarm; the electromagnetic adsorption component 6 absorbs the escaping current on the surface of the current sensor under the control of the processing chip board 3 so as to reduce the distortion of the measuring signal of the current sensor.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (10)
1. An apparatus for reducing distortion of a current sensor measurement signal, comprising:
A protective housing (1); for providing mounting locations and isolating internal components to achieve protection of internal components; the protective housing (1) is provided with a mounting element inside the protective housing (1) through a cavity type box-shaped structure;
-an in-pair monitoring assembly (2); the system is used for monitoring, identifying and judging the appearance part of the current sensor through the laser and the vision sensor; the in-pair monitoring assembly (2) is matched with the visual sensor (202) through the laser emission device (201) to realize external scanning of the current sensor;
A processing chip board (3); the information processing device is used for extracting, identifying and summarizing information transmitted to the central chip, and configuring a corresponding scheme according to the extracted content; the processing chip board (3) realizes extraction, identification and processing of the transmission information of the current detection component (4) through a feature extraction model and a feature identification method;
A current detection assembly (4); the method is used for being connected into a current sensor operation circuit to detect whether the operation current of the current sensor is abnormal in real time; the current detection assembly (4) is used for detecting the current of the current sensor through an oscilloscope (401) and a lead so as to judge whether the current sensor has the condition of distorted test signals;
an auxiliary power distribution assembly (5); the sensor is used for configuring operation power for the auxiliary device and relieving the current burden of the sensor; the auxiliary power distribution assembly (5) is used for independently storing power and distributing power through a storage battery (502) so as to reduce the power distribution pressure of the current sensor;
An electromagnetic adsorption assembly (6); the current sensor is used for connecting the auxiliary device and the current sensor and absorbing current dissipated by the sensor; the electromagnetic adsorption component (6) generates an electromagnetic field through the inductance coil (601) so as to realize the adsorption and installation of the auxiliary device on the current sensor through the electromagnetic field;
An auxiliary heat dissipation assembly (7); the auxiliary current sensor is used for assisting heat dissipation of the current sensor and the auxiliary device; the auxiliary heat dissipation assembly (7) is used for blowing air to the inside of the protective shell (1) through a heat dissipation fan (701) and heat dissipation holes (703) so as to realize auxiliary natural heat dissipation;
A hierarchical alarm assembly (8); the system is used for outputting alarms according to the number and the type of fault contents through different lamplight and loudspeaker assemblies;
The pair of inner monitoring components (2) are installed at the bottom of the processing chip board (3) through mounting pieces, the processing chip board (3) is fixedly installed at the middle position of the protective housing (1) through the mounting pieces, the electromagnetic adsorption component (6) is installed on the surface of the current sensor through electromagnetic adsorption, the electromagnetic adsorption component (6) is fixedly installed at the bottom of the protective housing (1) through the mounting pieces, the pair of inner monitoring components (2), the current detection components (4), the electromagnetic adsorption component (6), the auxiliary heat dissipation component (7) and the grading alarm component (8) are electrically connected with the auxiliary power distribution component (5), the auxiliary power distribution component (5) is arranged at the tail position of the protective housing (1), the auxiliary heat dissipation component (7) is installed on the side surface of the protective housing (1), the auxiliary heat dissipation component (7) penetrates through the side plate of the protective housing (1), the current detection component (4) is installed at the bottom of the protective housing (1) through the mounting pieces, the current detection component (4) penetrates through the protective housing (1) to the inside of the sensor, extends to the top of the protective housing (1) and is connected with the grading alarm component (8) at the top of the protective housing (1), the in-pair monitoring assembly (2) is arranged at the middle position of the electromagnetic adsorption assembly (6) and the current detection assembly (4).
2. A device for reducing distortion of a measuring signal of a current sensor according to claim 1, characterized in that the protective housing (1) is a rectangular cavity box structure with a recess, the protective housing (1) realizing protection of components inside the installation and isolation air against oxidation by means of a box structure; the protection shell (1) comprises a fan bin (101), a battery support (102), a chip mounting groove (103) and a light-transmitting layer (104), wherein the fan bin (101) is arranged on the left side of the protection shell (1), the battery support (102) is arranged at the center position of the inner side of a back plate of the protection shell (1), the light-transmitting layer (104) is spliced at the bottom of the protection shell (1) in a covering mode, the chip mounting groove (103) is arranged in the protection shell (1), and the chip mounting groove (103) is arranged above the battery support (102).
3. The device for reducing signal distortion measured by a current sensor according to claim 1, wherein the in-pair monitoring component (2) scans the connected current sensor through infrared laser and a vision sensor and transmits a scanning result to the processing chip board (3), the in-pair monitoring component (2) comprises a laser emitting device (201), a vision sensor (202) and a merging processing unit (203), the laser emitting device (201) is mounted at the bottom of the processing chip board (3), the laser emitting device (201) is connected with the auxiliary power distribution component (5) through a wire, the vision sensor (202) is mounted on the side face of the laser emitting device (201) in a fitting manner, the vision sensor (202) and the laser emitting device (201) are connected with the merging processing unit (203) through a tail wire, the merging processing unit (203) is arranged at the bottom of the processing chip board (3), and the laser emitting device (201) and the vision sensor (202) are connected with the light-transmitting layer (104) through the protective housing (1) to scan the current sensor.
4. The device for reducing the distortion of the measured signal of the current sensor according to claim 1, wherein the processing chip board (3) realizes the feature extraction and identification of the information transmitted by the in-pair monitoring component (2) and the current detection component (4) through a feature extraction model and a feature identification method; the processing chip board (3) comprises an image information interface (301), a sound card (302), a central chip (303), a signal conversion unit (304), a circuit board (305), a model training module (306) and a feature recognition unit (307), wherein the input end of the image information interface (301) is connected with the output end of the in-pair monitoring component (2) through a wire, the output end of the sound card (302) is connected with the input end of the grading alarm component (8) through a wire, the central chip (303), the image information interface (301), the sound card (302), the signal conversion unit (304), a model training module (306) and the feature recognition unit (307) are arranged on the upper side of the circuit board (305), the circuit board (305) is clamped and fixed in a chip mounting groove (103) of the protective housing (1), the central chip (303) is arranged at the central position of the circuit board (305), a scheme database (308) corresponding to the number and the type of feature information is preset in the central chip (303), the model training module (306) and the feature recognition unit (307) are arranged in the circuit board (305) and electrically connected with the feature recognition unit (307) through the wire, the input end of the signal conversion unit (304) is connected with the output end of the central chip (303) through a wire, and the output end of the signal conversion unit (304) is connected with the input end of the sound card (302) through a wire; the circuit board (305) is manufactured by bonding layered glass fibers, and the circuit board (305) is clamped and mounted in a chip mounting groove (103) of the protective shell (1).
5. The device for reducing distortion of a current sensor measurement signal according to claim 4, wherein the model training module (306) adopts an online learning algorithm, and the online learning algorithm performs feedback adjustment model adjustment rapidly in real time by online feedback data and training each sample, and performs high-density screening and high-efficiency recognition on the model-passed data; training process of the feedback adjustment model: firstly, setting the learning rate and regularization parameter value of a model; secondly, setting parallel learning numbers of the model; thirdly, continuously filling data into the data pool; fourth, at the same time, different parallel lines can fetch data from the data pool for training; finally, after the data is grabbed, merging models of different lines, and storing the models; the formula expression of the online learning algorithm is as follows:
ωt=1,i=- （1）
in the formula (1), i is a characteristic parameter; t represents an iteration parameter; Is a characteristic value; wherein:
（2）
（3）
（4）
In the formula (2), the formula (3) and the formula (4), Representing the degree of dispersion of the algorithm parameters; /(I)The normal cumulative gradient/>, which is the cumulative gradient of the first 1 to t rounds of the algorithmGenerally expressed as/>；/>Is a custom intermediate variable; wherein:
（5）
（6）
In the formulas (5) and (6), Representing the learning rate of the algorithm, all feature dimensions of the feedback adjustment algorithm use the same learning rate.
6. The device for reducing distortion of the measuring signal of the current sensor according to claim 1, wherein the current detecting component (4) performs current detection on the current sensor by an oscilloscope principle to realize the situation of judging whether the current sensor has abnormal current or not; the current detection assembly (4) comprises an oscilloscope (401), the current detection assembly (4) is arranged on the outer side of the bottom of the protective shell (1), the oscilloscope (401) is embedded and installed at the bottom of the protective shell (1), and the detection end of the oscilloscope (401) is connected into the current sensor.
7. The device for reducing signal distortion of current sensor measurement according to claim 1, wherein the electromagnetic adsorption component (6) is connected with a current sensor and an auxiliary device through a magnetic attraction principle, and is used for absorbing dissipation current through an electromagnetic field and a current sensor processing method, the electromagnetic adsorption component (6) comprises an inductance coil (601), a magnetic attraction rod (602), a conductive connecting end (603) and an insulating shell (604), the inductance coil (601) is arranged inside the insulating shell (604), the magnetic attraction rod (602) penetrates through the conductive connecting end (603), the magnetic attraction rod (602) is arranged at the top of the insulating shell (604), the insulating shell (604) is fixedly arranged at the bottom of the protective shell (1) in a welding mode, and the conductive connecting end (603) is arranged on the middle surface of the insulating shell (604); the inductance coil (601) generates an electromagnetic field in the conductive connecting end (603) through an electromagnetic field principle, and the electromagnetic adsorption component (6) adsorbs current which is arranged on the surface of the current sensor and overflows from the current sensor through the electromagnetic field.
8. The device for reducing signal distortion measured by a current sensor according to claim 1, wherein the hierarchical alarm assembly (8) is implemented to configure alarm voices of different frequencies and output channels by reading a voice scheme output by the processing chip board (3), the hierarchical alarm assembly (8) comprises a speaker (801), a small alarm lamp (802), a large alarm lamp (803) and a scheme reading unit (804), the speaker (801) is arranged at the bottom of an inner top plate of the protective housing (1), input ends of the speaker (801) and the scheme reading unit (804) are connected with output ends of a sound card (302) of the processing chip board (3) by wires, the scheme reading unit (804) is arranged on the processing chip board (3), output ends of the scheme reading unit (804) are connected with input ends of the small alarm lamp (802) and the large alarm lamp (803) by wires, and the scheme reading unit (804) controls flickering of the small alarm lamp (802) and the large alarm lamp (803) by wires, and the speaker (801) outputs audio information by the sound card (803).
9. The device for reducing distortion of a signal measured by a current sensor according to claim 1, wherein the auxiliary power distribution assembly (5) comprises a driving motor (501), a storage battery (502) and a transmission member (503), the driving motor (501) is connected with the storage battery (502) through the transmission member (503), the driving motor (501) is arranged at the central position of the protective housing (1), and the storage battery (502) is mounted on a battery bracket (102) of the protective housing (1) through a mounting member; the auxiliary radiating assembly (7) comprises a radiating fan (701), a fan transmission rod (702) and radiating holes (703), wherein the radiating fan (701) is fixedly installed in a fan bin (101) of the protective housing (1) in a clamping mode, the radiating fan (701) is connected with the driving motor (501) through the fan transmission rod (702), the radiating holes (703) are formed in the side plate of the protective housing (1), the radiating holes and the radiating fan (701) are arranged on the same vertical line, and the radiating fan (701) penetrates through the side plate of the protective housing (1).
10. A method of reducing distortion in a measured signal of a current sensor, comprising: an apparatus for reducing distortion of a current sensor measurement signal using any one of claims 1-9, comprising the steps of:
S1, splicing an installation auxiliary device on an installation foot of a current sensor, inserting a connecting piece into an operation circuit of the current sensor, and adsorbing the auxiliary device by an electromagnetic adsorption assembly to realize stable installation on the current sensor;
s2, starting a switch of an auxiliary device, starting an auxiliary power distribution assembly to work, collecting and displaying current parameters of the current sensor by an oscilloscope of the current detection assembly, and outputting a current signal to a processing chip board for processing;
S3, synchronously starting the internal monitoring assembly, emitting infrared laser by the laser emitting device, collecting images through the vision sensor, and outputting collected image information to the processing chip board;
S4, converting the current signals and the image information by the processing chip board, outputting the result to the central chip for feature extraction and identification to obtain an abnormal information group;
s5, the processing chip board extracts corresponding scheme information in the scheme database according to the number and the type of the abnormal information, performs data conversion on the scheme information, and outputs a processing scheme to the sound card and the scheme reading unit;
s6, the sound card and the scheme reading unit read and identify the electric signals and control the grading alarm assembly to alarm; the electromagnetic adsorption component absorbs the escaping current on the surface of the current sensor under the control of the processing chip board so as to reduce the distortion of the measuring signal of the current sensor.
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