CN116828412B

CN116828412B - New energy automobile fills and trades electric box and becomes rack wireless communication system

Info

Publication number: CN116828412B
Application number: CN202310946302.7A
Authority: CN
Inventors: 宫业胜; 齐吉恒; 王占永; 彭奎元; 连宝玉
Original assignee: Cangzhou Rongshengda Electric Appliance Co ltd
Current assignee: Cangzhou Rongshengda Electric Appliance Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-02
Anticipated expiration: 2043-07-31
Also published as: CN116828412A

Abstract

The invention discloses a new energy automobile charging and battery changing cabinet wireless communication system, which relates to the technical field of wireless data communication and solves the problem that under the new energy application environment, the cabinet wireless communication is lagged, and the adopted scheme is as follows: the utility model provides a new energy automobile fills and trades electric case and becomes rack wireless communication system, through setting up case and becomes equipment layer, data communication layer and terminal interaction layer in order to improve case and become quick-witted wireless communication ability, in the data communication layer, it includes information transmission monitoring module, wireless information transmission network, protocol distribution module and transfer interface, wherein information transmission monitoring module include main control module, and with the optimal search module of communication node, communication protocol configuration module, communication carrier power distribution algorithm module, communication error calculation module and the early warning module that main control module is connected, improves communication ability greatly, improves case and becomes rack wireless communication's stability.

Description

New energy automobile fills and trades electric box and becomes rack wireless communication system

Technical Field

The invention belongs to the technical field of wireless data communication, and particularly relates to a wireless communication system for a charging box-to-cabinet of a new energy automobile.

Background

With the rise of New Energy (NE), new energy gradually replaces traditional energy, while New Energy (NE) is also called unconventional energy, which refers to various energy forms beyond traditional energy, namely energy which is just developed and utilized or is being actively researched and is to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, nuclear energy and the like. The new energy is clean energy which can be recycled, and the development of the new energy industry is not only an effective supplementary means of the whole energy supply system, but also an important measure of environmental management and ecological protection, and is a final energy selection meeting the sustainable development requirement of the human society. The box-type transformer substation cabinet (for short, box-type transformer substation) is usually located outdoors or outdoors, the external environment is changeable, such as high temperature, sun-drying, low temperature and rain and snow, meanwhile, the internal sealing rubber strips are easy to age, fireproof mud is easy to crack and animal damage, faults caused by humidity, over temperature and the like in the box-type transformer substation can be caused, and when serious, flashover discharge breaks down, blasts and even burns out. The box transformer cabinet is usually installed in the field in specific application, when the box transformer cabinet realizes data information interaction, the conventional method is used for improving the communication of the box transformer cabinet in a wireless communication mode by means of wired communication, so that the communication difficulty is increased, the problem of interaction lag and the like of the box transformer cabinet is easily caused by the existence of a circuit, and once a communication cable is in a problem, the data communication is caused to have a serious problem. In the prior art, in the data communication process of the cabinet of the box transformer, the system network module is easy to optimize the coverage area of the network, has hysteresis anti-interference capability and complex network structure, has small wireless data communication capacity,

Based on the problems of abundant resources, strong universality and the like in the application process of new energy, the problems of unstable communication, low transmission efficiency and the like easily exist in the wireless communication of the cabinet of the box transformer in the wireless data information transmission process. How to improve the wireless communication capability of the cabinet of the box transformer is a problem to be solved.

Disclosure of Invention

Aiming at the defects of the technology, the invention discloses a wireless communication system for a charging and changing box transformer cabinet of a new energy automobile, which can greatly improve network coverage and high-efficiency transmission capacity. The system network module is used for optimizing the system network, optimizing the network coverage, optimizing the anti-interference function, optimizing the network structure and optimizing the capacity. The wireless communication function of the method for wireless communication of the cabinet of the box transformer is more stable, and the transmission efficiency is higher.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a new energy automobile fills and trades electronic box and becomes rack wireless communication system, wherein includes:

the box transformer equipment layer comprises a box transformer equipment set, a fault detection module, a data communication gateway and an information isolation module, wherein the box transformer equipment set is connected with the fault detection module, the fault detection module is connected with the data communication gateway, and the data communication gateway is connected with the information isolation module; the system comprises a box transformer cabinet unit, a fault detection module, a data communication gateway, an information isolation module and a control module, wherein the box transformer cabinet unit is used for providing voltage, current, rated capacity, no-load loss, high-voltage loop information, low-voltage loop information, lightning withstand voltage data information and thermal stability data information which are output in the working process of the box transformer cabinet unit under the application environment of new energy, the fault detection module is used for detecting the working state of the box transformer cabinet unit, the data communication gateway is used for transmitting the working data information state of the box transformer cabinet unit, and the information isolation module is used for isolating the data information transmitted in the working process of the box transformer cabinet unit;

The data communication layer comprises an information transmission monitoring module, a wireless information transmission network, a protocol distribution module and a transmission interface, wherein the information transmission monitoring module is used for realizing information monitoring of the box transformer cabinet in a data transmission process, the wireless information transmission network is used for transmitting data information of the box transformer cabinet, the protocol distribution module is used for realizing distribution of the data information of the box transformer cabinet by setting a relay node and a communication protocol, and the transmission interface is used for distributing the data information of the box transformer cabinet to the terminal interaction layer; the information transmission monitoring module comprises a main control module, and a communication node optimal search module, a communication protocol configuration module, a communication carrier power distribution algorithm module, a communication error calculation module and an early warning module which are connected with the main control module, wherein the main control module is used for controlling different data information in a box transformer equipment layer to be in a control state, the communication node optimal search module is used for searching information interaction nodes or protocols of the box transformer equipment cabinet under wireless communication, the communication protocol configuration module is used for configuring data information sent by the box transformer equipment cabinet, and the communication carrier power distribution algorithm module is used for evaluating information noise interacted by the box transformer equipment cabinet under wireless communication and sending data abnormity; the communication error calculation module is used for calculating communication information of the box transformer cabinet under wireless communication, and the early warning module is used for early warning the assessed different data information of the equipment layer of the control box transformer; the wireless information transmission network comprises an RS485 communication module, a GPRS communication module, a CDMA communication module or a CDPD communication module; the protocol distribution module comprises a protocol identification module, a coding module and a distribution ordering module, wherein the output end of the protocol identification module is connected with the input end of the coding module, and the output end of the coding module is connected with the input end of the distribution ordering module;

The terminal interaction layer comprises an information calculation and analysis module, an information storage module and a visual display module, wherein the information storage module is connected with the information calculation and analysis module, the information calculation and analysis module is used for analyzing data information output by the box transformer cabinet, the information storage module is used for storing the received data information of the box transformer cabinet, and the visual display module is used for displaying the data information of the box transformer cabinet;

the output end of the box transformer equipment layer is connected with the input end of the data communication layer, and the output end of the data communication layer is connected with the input end of the terminal interaction layer.

As a further technical scheme of the invention, the fault detection module comprises a central processing unit, an information acquisition module, an A/D conversion module, a D/A conversion module, an acquisition interface, a power module, an SPI bus module, a data display unit, an external expansion circuit module, a data conversion interface, a wireless data interface, an upper computer, an information filtering module and a relay switch circuit, wherein the information acquisition module is connected with the acquisition interface, the acquisition interface is connected with the A/D conversion module and the D/A conversion module, the central processing unit is connected with the A/D conversion module, the D/A conversion module, the data conversion interface, the SPI bus module and the wireless data interface, the SPI bus module is connected with the data display unit and the external expansion circuit module, the external expansion circuit module is connected with the information filtering module, the information filtering module is connected with the relay switch circuit, and the wireless data interface is connected with the upper computer.

As a further technical scheme of the invention, the information isolation module comprises a PFGA main control module and a data filter connected with the PFGA main control module.

As a further technical scheme of the invention, the main control module comprises an STM32F103 single-chip microcomputer, and an embedded memory, an RS485 module, a GPRS module, a WiFi module and an SPI interface which are connected with the STM32F103 single-chip microcomputer.

As a further technical scheme of the invention, the optimal searching module of the communication node adopts a big data model to search information, and the working method is as follows:

step one, constructing an artificial fish model with a big data model,

the perception of the cabinet-to-cabinet communication protocol is realized through an artificial fish model of the big data model, and the perception model is recorded as:

X _v ＝X+Visual×Rand()max E (1)

in formula (1), rand () is represented as a random number between 0 and 1, X is represented as a state of box-to-cabinet data, X _v The current position of the individual fish shoals defined in the communication process is represented, and Visual represents the artificial fish view identified by the protocol in the wireless communication process of the box transformer cabinet;

wherein the individual fish school update function in the artificial fish model is recorded as:

in equation (2), step is expressed as a model Step size, X _next The method comprises the steps of representing an operation state updating state function of a cabinet of the box transformer in the wireless communication process; max E represents target data information of the running state of the cabinet of the wireless communication process box transformer;

Wherein the function of max E is expressed as:

in the formulas (1) - (3), M is the number of information control nodes in the wireless communication process of the cabinet of the box transformer, T is the total time period in the communication process, and k _m As error coefficient, Q _m In order to extract the information reference volume,is initial information; Δt represents the communication time difference of different time periods; t tableShowing the specific time of communication, m representing the information identification of wireless communication;

step two: setting initialization parameters

Assuming that the total number of artificial fish is represented as N, try-number is represented as the number of iterations of the AFS algorithm, delta is represented as a crowding factor, d _ij ＝||x _i -x _j The I is expressed as the distance between individual fishes i and j, the clustering behavior is expressed as Swarm (), swarm () is expressed as the degree of information collection between different numbers, the rear-end behavior is expressed as Follow (), follow () is expressed as the degree of information interaction between different cabinet data, the random behavior is expressed as Move (), move () is expressed as the random interaction capability of the different cabinet data information, the foraging behavior is expressed as Prey (), prey () is expressed as the capability of searching one data information through the other data information, the behavior evaluation function is expressed as Evaluate (), Y _i ＝f(X _i ) Representing an objective function; random behavior Move (), the random behavior Move () function is expressed as:

In the formula (4), the wireless communication data information is n _c The central state is X _c ，Y _c /n _c Indicating the degree of congestion, X _i Representing the form of artificial fish information selected at will in the perceptible range, X _j Indicating optimal state X in wireless communication process _j ；

The foraging function equation is:

in the formula (5), the data information of different cabinet change cabinets is in the foraging process,

the foraging update function equation is:

in the formulas (4) to (6), if the termination condition is not satisfied, the optimal solution communication node is not found, and the particle swarm function expression for the fish swarm rear-end collision is as follows:

in formula (7), Y _i ＝f(X _i ) Representing an objective function, X _i Representing the current position of the artificial fish, rand () represents a random number between 0 and 1, step represents a Step size, and X _j Indicating a new state within the field of view.

The random function equation is:

X _i/next ＝X _i +Rand(0，1)×Step×max E (8)

in formula (8), X _i/next Representing the current or next position of the AFS;

step three: an output of the wireless communication protocol;

and calculating the optimal fitness of each artificial fish, and repeatedly executing the second step until the termination condition is met.

As a further technical scheme of the invention, the communication protocol configuration module realizes the matching of data information through protocol contents, protocol addresses or protocol formats.

As a further technical scheme of the invention, the communication carrier power allocation algorithm module comprises a water injection algorithm model, wherein the working method of the water injection algorithm model is as follows:

in the case-to-cabinet communication process, in the total power of the communication, the total power of the communication subcarriers are distributed by a water injection algorithm, and the distributed power S of the subcarriers in each wireless communication subchannel is calculated by a formula (9) _i The function of the allocated power is:

S _i ＝λ-γ _i ^-1 ，i＝1，2，...，N (9)

in formula (9), λ=1/(l·ln2) represents the water injection threshold, S _i ≥0；

The power function actually allocated by the subcarrier is recorded as the power function of the wireless communication of the cabinet of the box transformer:

S _i ＝max{0，λ-γ _i ^-1 }，i＝1，2，...，N (10)

step (2), initializing the cabinet communication protocol data of the box transformer, so that the power leakage J=0 outside the cabinet communication protocol channel of the box transformer and the power leakage matrix J (i, J) =1 in the sub-channel; setting the actual transmitting power of each sub-channel of the cabinet-to-cabinet communication protocol to zero, and then calculating the actual transmitting power F=J×S of the cabinet-to-cabinet communication without considering the power leakage matrix of sub-carriers outside the sub-channels _i ′；

Step (3), constraint conditions are set to improve the communication configuration capacity of the box transformer substation, gain amplitude h (i, j) of a sub-channel is obtained according to a power function actually distributed by sub-carriers, then a power constraint value G of the sub-channel is obtained according to the gain of the sub-channel, and the magnitude of the theoretical power constraint value F and the magnitude of the power constraint value G are compared;

Step (4), sorting the data of the cabinet communication protocol of the box transformer, selecting the corresponding channel carrier-to-noise ratio of subcarriers in the power unrestricted parameter A and the power restricted parameter D, and sorting the cabinet communication protocol or the power of the box transformer;

and (5) distributing communication power of the cabinet transformer, and finally, respectively distributing power of subcarriers meeting the power constraint of the sub-channels in the power unrestricted parameter A and the power restricted parameter D, distributing actual transmitting power of the subcarriers in the power unrestricted parameter A, and distributing power of the subcarriers in the power restricted parameter D in the actual constraint power, wherein the channel capacity function formula is as follows:

calculating the channel capacity allocated by the communication power allocation of the cabinet of the box transformer, wherein in the formula (11), P _T (f _n )、h(f _n )、N _R (f _n ) Respectively representing the allocated power, frequency response and noise power of the sub-channels.

As a further technical scheme of the invention, the communication error calculation module comprises an ARM 32-bit cortex TM-M4 processor, an analog quantity acquisition circuit and an error calculation chip, wherein the analog quantity acquisition circuit and the error calculation chip are connected with the processor.

As a further technical scheme of the invention, the information transmission monitoring module comprises an abnormality alarming module.

The beneficial effects of the invention are as follows:

the wireless communication capability of the box transformer substation is improved by arranging the box transformer substation equipment layer, the data communication layer and the terminal interaction layer, the wireless communication capability, the storage capability and the visual display of communication data information are improved in the data communication layer, the communication capability can be improved under the new energy application environment, and the stability of the network is improved.

Drawings

For a more visual understanding of the technical solutions of the present invention, reference will now be made briefly to the accompanying drawings, which are used in the description of the modules of the system or the technology, and in which the following description is given only by way of examples of the invention, and from which, without any inventive effort, a person skilled in the art may obtain further drawings, wherein:

FIG. 1 is a schematic diagram of the overall architecture of the system of the present invention;

FIG. 2 is a schematic diagram of a message passing monitor module according to the present invention;

FIG. 3 is a schematic diagram of a fault detection module according to the present invention;

FIG. 4 is a schematic diagram of an analog acquisition circuit according to the present invention.

Detailed Description

Other embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. Based on the examples of the present invention, those skilled in the art could obtain the product without making any inventive effort, which would fall within the scope of the present invention.

As shown in fig. 1-4, a wireless communication system for a charging and changing box transformer cabinet of a new energy automobile includes:

In a specific embodiment, as shown in fig. 3, the fault detection module includes a central processing unit, an information acquisition module, an a/D conversion module, a D/a conversion module, an acquisition interface, a power module, an SPI bus module, a data display unit, an external expansion circuit module, a data conversion interface, a wireless data interface, an upper computer, an information filtering module, and a relay switch circuit, wherein the information acquisition module is connected with the acquisition interface, the acquisition interface is connected with the a/D conversion module and the D/a conversion module, the central processing unit is connected with the a/D conversion module, the D/a conversion module, the data conversion interface, the SPI bus module, the data display unit, the external expansion circuit module, the information filtering module, the relay switch circuit, and the wireless data interface.

In a specific embodiment, the fault detection module adopts an embedded detection system, and is provided with a central processing unit for controlling embedded operation, a memory for storing data information, a calculator for calculating the data information, a controller for controlling the data information, an A/D conversion module for realizing analog and digital conversion, a D/A conversion module for realizing digital and analog signal conversion, a multi-path sensor interface for carrying out data transmission on different data information, a power supply module for realizing embedded detection power supply charging, an SPI bus for realizing data interaction, a wireless data transmission module for realizing wireless data communication and interaction, an RS 232-to-USB data interface and the like. The ADXL345 is used as a vibration sensor for sensing data information of the box transformer cabinet in the operation process, the data information can be transmitted to a data conversion module by the sensors, and the data information is processed by the central processing unit. In the design of the embedded system, the central processing unit adopts a processor with Cortex-R and Cortex-M cores in the design, the invention adopts a processor with the model of S3C6410 and ARM11 as the core, and the chip has stronger data processing capability. The data information is transmitted to the PC upper computer through the data interface, so that various data information transmission is realized.

In the early warning module, in a specific embodiment, for example, an 8031 single chip microcomputer and a memory circuit are adopted, and an AD8031 single chip microcomputer is adopted, so that feedback and calculation of data information of a cabinet of the box transformer can be realized, and when data are stored, a RAM data storage module and a program memory ROM storage module are used for storing a system program, a control signal required by a control circuit is stored, and a RAM is used for storing historical fault alarm parameters, and is used for recording time of fault occurrence, cause of fault occurrence, frequency of fault occurrence and the like. The voice generator adopts a VP-1600 voice processor chip which has the function of processing long-time voice, sends a voice signal to the VP-1600 through a microprocessor, then detects the working state of the VP-1600, and feeds back a BUSY state signal to the microprocessor after the VP-1600 receives the voice signal sent by the microprocessor, sends the data to a D/A converter, converts the data into the voice signal, and then plays the voice signal through an alarm, and then withdraws the BUSY signal to realize the function of alarming the fault of the converter valve element. The display adopts a 5001 liquid crystal display, the display is provided with a display controller and a display memory, when data or Chinese characters are to be displayed, the microprocessor sends a display address to the display through an I/O port, then sends contents to be displayed to the memory, and the contents to be displayed are displayed on the display in a format set previously. The system is also provided with keys and an indicator lamp, wherein the indicator lamp is used for prompting a box transformer cabinet manager to pay attention to the working state of the box transformer, and whether a fault occurs or not; the keys are used to adjust parameters and modes of the system.

In a specific embodiment, the information isolation module comprises a PFGA master control module and a data filter connected with the PFGA master control module.

In a specific embodiment, in the running process of the box transformer substation equipment cabinet, a forward and reverse isolation device can be adopted, so that the system can support various network communication protocols while meeting the quick and real-time communication requirement of the system, the accurate sending and receiving of the monitoring data of the box transformer substation equipment cabinet are ensured, the unidirectional communication between the system intranet and an external network is realized, and the monitoring isolation of message instructions in the running process of the box transformer substation equipment cabinet is supported. The invention takes PFGA as the isolation master control, can have faster operation speed, the master control frequency can reach 200MHz, different logic blocks execute in parallel and operate in parallel, has better parallel processing capability when processing network communication, has abundant internal resources, has hundreds of I/O ports, and is convenient and flexible to schedule the internal resources according to the communication requirement of the system. The invention uses the main control chip of the EP4CE115F29C7N as an isolation device, has 594 embedded memories, has a global clock network of up to 20 and is provided with 2 communication network interfaces. And filtering the output data information of the box transformer cabinet by using a data filter, and setting or screening the output voltage, current, rated capacity, no-load loss, high-voltage loop information, low-voltage loop information, lightning withstand voltage data information and thermal stability data information through certain data information attributes.

In a specific embodiment, the main control module comprises an STM32F103 single-chip microcomputer, and an embedded memory, an RS485 module, a GPRS module, a WiFi module and an SPI interface which are connected with the STM32F103 single-chip microcomputer.

The main control module adopted by the invention uses an STM32F103 singlechip and an AM49587 demodulator chip, the module has 240 physical interrupts, and the ISA supports Thumb and Thumb-2. In a specific embodiment, the main control module can perform encryption operation to realize transparent data transmission with the management center and the control center, and the processor encrypts the program and stores the encrypted program into the off-chip FLASH through the SPI interface. The power supply module uses the high-efficiency linear stabilized voltage power supply AMS1117-3.3 to perform voltage conversion, and can control the reference voltage error within 1.5% so as to reduce the overload pressure of the power supply circuit. In a specific embodiment, the hardware structure of the system monitoring device comprises an RS485 module, a control communication module, a processor, a GPRS module and a WIFI module, wherein the control communication module is connected with the GPRS module through a serial interface. And an analog switch is added in a monitoring circuit of the control system, a control communication module can select a communication mode according to the actual condition of the network, a level conversion module is added to match the levels of the GRPS module and the control unit, and the control unit drives other modules by using AT instructions.

In a specific embodiment, the working method of the communication node optimal searching module for searching information by adopting a big data model comprises the following steps:

the invention relates to a method for processing data of a box transformer cabinet, which comprises the steps of firstly, constructing an artificial fish model with a big data model, taking artificial fish as analogy in the data information processing process of the box transformer cabinet, adopting a visual method to sense the external things, realizing the retrieval and target recommendation of the box transformer cabinet in the wireless communication process, realizing the sensing of a communication protocol of the box transformer cabinet through the artificial fish model of the big data model, and recording the sensing model as:

X _v ＝X+Visual×Rand()max E (1)

in formula (1), rand () is expressed asA random number between 0 and 1, X is expressed as the state of cabinet data of the box transformer, X _v The current position of an individual fish farm defined in the communication process (in a specific embodiment, the individual fish farm represents specific data information in the operation process of the box transformer cabinet, such as protocols of a GPRS module, a WIFI module, a WLAN module, a UWB module, a ZigBee module, a LORA module, an NB-IOT module and a ZIGBEE module), and the Visual represents an artificial fish field recognized by the protocols in the wireless communication process of the box transformer cabinet;

in the specific embodiment, the box-type transformer substation is mainly formed by combining electrical units such as a multi-loop high-voltage switch system, an armored bus, a transformer substation comprehensive automation system, communication, telecontrol, metering, capacitance compensation, direct-current power supply and the like, and is arranged in a steel structure box body which is dampproof, rust-proof, dustproof, rat-proof, fireproof, antitheft, heat-insulating, totally-enclosed and movable, and is mechanically and electrically integrated and operates in a totally-enclosed mode. Because the box-type transformer substation is compact in structure, each box forms an independent system, so that the combination mode is flexible and changeable, on one hand, all the box-type transformer substation can be assembled by all the 35kv and 10kv equipment, namely, all the box-type transformer substation is formed. The combined mode is particularly suitable for old station transformation in rural power network transformation, namely the original 35kv equipment is not moved, and the unattended requirement can be achieved by only installing one 10kv switch box. When wireless data communication is performed, various communication modes such as a GPRS module, a WIFI module, a WLAN module, a UWB module, a ZigBee module, a LORA module, an NB-IOT module, a ZIGBEE module, a cell and the like can be adopted, and in the process of applying different modes, a communication protocol needs to be perceived so as to improve the communication matching capability of different modules. When the communication protocol of the cabinet to the cabinet is sensed, the communication process needs to be updated in real time, and therefore the data information of the individual fish shoals in the sensing process needs to be updated.

in a specific embodiment, the communication data sent by the box-type transformer machine cabinet can be updated according to different contents such as a communication state, a communication position and a communication protocol.

Wherein the function of max E is expressed as:

in the formulas (1) - (3), M is the number of information control nodes in the wireless communication process of the cabinet of the box transformer, T is the total time period in the communication process, and k _m As error coefficient, Q _m In order to extract the information reference volume,is initial information; Δt represents the communication time difference of different time periods; t represents a specific time of communication, m represents an information identifier of wireless communication;

step two: setting initialization parameters

Let the total number of artificial fish (data information of cabinet to cabinet communication nodes or communication protocols) be denoted as N, try-number be denoted as the number of AFS algorithm iterations, delta be denoted as the crowdedness factor, d _ij ＝||x _i -x _j The I is expressed as the distance between individual fishes i and j, the relation between different attributes under the same search condition is far and near, the clustering behavior is expressed as Swarm (), swarm () is expressed as the information gathering degree between different numbers, the rear-end collision behavior is expressed as Follow (), follow () is expressed as the information interaction degree between different box-section cabinet data, the random behavior is expressed as Move (), move () is expressed as the random interaction capability of the data information of different box-section cabinets, the foraging behavior is expressed as Prey (), and Prey () is expressed as the capability of searching the other data information through one data information The force, behavior evaluation function is denoted as evaluation (), Y _i ＝f(X _i ) Representing an objective function;

by initializing parameters under the assumption, the current position of an artificial fish is assumed to be X, and when the artificial fish can randomly select a form within a perceptible range, the form is expressed as X _i A new form is selected in the observable range, denoted as X _j If the new form is more superior than the original form, the artificial fish is further in front of the artificial fish, if the artificial fish is not searched continuously, and if the proper form is still not found after the Try-number is used, the method goes to a random behavior Move (), and the random behavior Move () function is expressed as follows:

When the artificial fish finds the nearby congener n in a clearly observable range _c And obtain the central state as X _c Meanwhile, the crowding degree of the AFS is smaller than delta, and otherwise, the AFS is converted into foraging behavior, and in the function, the foraging function equation is as follows:

in the formula (5), the data information of different cabinet changes can find nearby similar kinds in a clearly observable range in the foraging process, and the optimal state is X _j When the state is superior to the initial state and the crowding degree is smaller than delta, the step is forward, otherwise, the foraging behavior is converted, and the foraging update function equation is as follows:

In a specific embodiment, if the value does not meet the particle swarm function fish swarm of the fish swarm rear-end collision, the fish swarm is performed, and if the fish swarm rear-end collision is a particle swarm strategy, the fish swarm is performed, and meanwhile the fish swarm foraging is calculated. If the fish swarm foraging is finished, the fish swarm calculation is carried out, if the fish swarm meets the condition of searching the optimal solution, the bulletin board is updated, otherwise, the fish swarm foraging is carried out, and meanwhile, if the fish swarm foraging meets the condition, the swarm parameter is updated. If the best behavior cannot be found in the state at the moment, the jump-out local search is adopted, and then the random behavior is adopted, wherein the random function equation is as follows:

X _i/next ＝X _i +Rand(0，1)×Step×max E (8)

In formula (8), X _i/next Representing the current or next position of the AFS;

step three: an output of the wireless communication protocol;

The method can realize the retrieval, monitoring and management of the data information of the cabinet of the box transformer, and greatly improve the data information interaction capability of the cabinet of the box transformer;

in the above embodiment, the communication protocol configuration module realizes the matching of the data information through the protocol content, the protocol address or the protocol format.

In a specific embodiment, when the configuration is performed through a TCP/IP Protocol, different contents such as an IP address, a subnet mask, a default gateway, a DNS server, or a Protocol address (Protocol address) are set for information, where the TCP/IP Protocol is the most widely supported communication Protocol set, and can improve the data communication capability.

In a specific embodiment, the communication carrier power allocation algorithm module includes a water injection algorithm model, where the working method of the water injection algorithm model is as follows:

S _i ＝λ-γ _i ^-1 ，i＝1，2，...，N (9)

in formula (9), λ=1/(l·ln2) represents the water injection threshold, S _i Not less than 0; in a specific application, water injection (water injection), a measure of injecting purified water into an oil reservoir from the surface in order to maintain the reservoir pressure and to increase the reservoir recovery, is applied in the field of communication technology, indicating the power limits released in different nodes in the cabinet-to-cabinet communication. S obtained by formula (9) _i It is possible that the power function actually allocated by the subcarrier is recorded as the wireless communication of the cabinet to be changed, wherein the power function is smaller than zero:

S _i ＝max{0，λ-γ _i ^-1 }，i＝1，2，...，N (10)

calculating the channel capacity allocated by the communication power allocation of the cabinet of the box transformer, wherein in the formula (11), P _T (f _n )、h(f _n )、N _R (f _n ) Respectively representing the allocated power, frequency response and noise power of the sub-channels;

in the comparative embodiment, the water injection algorithm allocates power to the subcarriers according to the channel gain on the premise of limited power, the improved iterative block constraint water injection algorithm improves the water injection threshold value on the basis of the classical water injection algorithm, and the carrier power on the subchannels of the cabinet of the box transformer is better allocated again on the premise of constant input power, so that the channel capacity is effectively improved. The implementation process of the iterative block constraint water injection algorithm is as follows: dividing a plurality of subcarriers passing through a channel into a plurality of subcarrier groups, namely performing blocking processing, then corresponding one subcarrier to each group, ensuring equal subcarrier numbers in each subchannel, combining the power constraint conditions of each subchannel, performing power distribution on the subcarriers meeting the conditions, and not distributing power to the subcarriers not meeting the conditions, thereby realizing effective and reasonable power distribution. The transmitting power constraint condition of the sub-channel is determined by the gain amplitude of the sub-channel, and the wireless communication capability of the cabinet of the box transformer is further improved by the method.

In a specific embodiment, the communication error calculation module comprises an ARM 32-bit Cortex TM-M4 processor, an analog acquisition circuit and an error calculation chip, wherein the analog acquisition circuit and the error calculation chip are connected with the processor.

In a specific embodiment, the communication error calculation module uses an STM32F429ZET6 singlechip as a control chip in specific application, adopts a processor core of ARM 32-bit Cortex TM-M4, and has a DMA of 12 channels, 112 quick I/O ports and the like. Exynos4412 can be used for the communication error module, and the main frequency range is 1.4-1.6 GHZ. The sensing unit is provided with a plurality of analog parameter signal input interfaces, can be matched with a plurality of types of network equipment in a network, and packages and uploads data such as sensed running states of the network equipment, network parameters and the like to the monitoring server through a wireless transmission mode after amplification, filtering and digital processing.

As shown in fig. 4, the wireless communication module uses a USR-G806 router, and the WiFi signal can reach 100M, and a 3dbi high-gain antenna is adopted to support multiple encrypted transmissions. The clock module uses DS1337 chip, the X1 pin of the clock module is connected with a quartz crystal oscillator of 32.7KHz to provide an external oscillation signal source, SCL is serial clock input and is used for synchronizing bus data transmission, the SDA interface is connected with the LCD pin to output clock data, and clock and signal output can be controlled by configuring a time register in the clock module. In the input channel 1, R2 and D1 form an input set of the acquisition circuit together, and the resistance values of R1 and R2 are respectively 100 omega and 150 omega, so that the conversion of input current and voltage is realized. The model of the diode D2 is SS34, so that reverse connection protection of the input end is realized, and the maximum forward conduction voltage drop is 0.5V. The analog switch U2 and the operational amplifier U1 form an intermediate stage of the acquisition circuit, the output end of the switch is cascaded with a voltage follower, the current of the conducting branch is reduced, and meanwhile, the output voltage error of the intermediate stage is reduced.

In a specific embodiment, when the information computation analysis module,

in a specific embodiment, the information transmission monitoring module comprises an abnormality alarm module, and in a specific embodiment, the abnormality alarm module is used for detecting the abnormal position of the circuit operation or predicting whether the circuit has faults or not, and the fault mode is whether the data signals of the abnormality alarm module are the same as the data signals returned under normal conditions or not when the data signals are returned. The abnormality alarming module comprises a detecting module and a control processing module. The detection module collects information of the system everywhere and detects the information with the normal information, the difference exceeds a certain threshold value, the detection module transmits the analyzed abnormal information address to the alarm controller, and the controller processes and reports the abnormal information after judging the abnormal information.

In a specific embodiment, the protocol identification module identifies the protocol to improve the data communication capability, the encoding module encodes different channels through data encoding to improve the communication capability, and the distribution sequencing module distributes the distribution capability and the application capability of different communication nodes in the wireless communication process of the box transformer.

In other embodiments, the wireless communication module may further perform wireless communication control based on a single chip microcomputer as a control core, where the wireless communication module includes an encoding module, a decoding module, a data transmission unit (Data Terminal unit, DTU) monitoring module, a packet radio service technology (General Packet Radio Service, GPRS) module, and a wireless data transmission module. The coding module converts the transmitted information into coding language through a coding library, codes the signal to be transmitted, codes the signal into a data frame form, and arranges the data frame form in a form of a lead code, a data packet, a synchronous code and interval protection, wherein the data packet of the first half is a low-rate data packet of the signal, and the data packet of the second half is a high-rate data packet. The decoding module and the encoding module share one encoding library, and the decoding module analyzes and judges whether the signal lead code is the lead code of the target signal or not according to the captured signals in the form of the data frames; if the signal is the target signal, continuously capturing and analyzing the low-rate data packet downwards, wherein the signal of the low-rate data packet is stronger; and carrying out channel analysis on the low-rate data packet, calculating the frequency offset and the code phase of the high-frequency data packet, and capturing the high-frequency data packet. The data transmission unit monitoring module integrates the functions of all devices through a controller area network (Controller Area Network, CAN) bus, an internal integrated transmission control/Internet interconnection (Transmission Control Protocol/Internet Protocol, TCP/IP) protocol stack supports dual-channel data transmission, and the packet wireless service technology module adopts a packet switching technology to quickly and efficiently transmit information. The transmission control/internet interconnection protocol is a basic protocol of the internet. The transmission control protocol comprises four layers, namely a link layer, a network layer, a transmission layer and an application layer, wherein the link layer defines a data frame which comprises a writing source, a target address, data and check bits; the network layer distinguishes network segments according to the user-defined network address; the transmission layer realizes the communication between ports, when the data enters the transmission layer through the network layer, the application program defines a logic port in the transmission layer, and the application program gives the data to the application program after confirming the identity; the application layer interprets the data transferred from the transport layer to the application program in a uniformly prescribed protocol format. The internet protocol defines an addressing method and a datagram encapsulation structure, the message format includes a header and data, and the address format of the datagram ensures that each computer has a unique assigned detailed address, and data is transferred according to the source host and destination host addresses. The wireless data transmission module adopts a digital signal processing (Digital Signal Processing, DSP) module, and the radio module connected with the digital signal processing module realizes the calculation and transmission of high-performance professional data. The digital signal processing module comprises a processing module, a coding and decoding module and an external interface, wherein the processing module receives, processes and transmits data information, the coding and decoding module interprets the frame head of a communication information frame, reads information, compiles to be transmitted and transmits the information in the form of an information frame. The digital signal processing technology realizes the processing procedures of signal transformation, filtering, detection, modulation demodulation and a fast algorithm in a digital operation mode.

In other embodiments, the data transmission unit monitoring module performs wireless long data transmission based on a wide area network, obtains data, and then wirelessly transmits the data to a data center, where the data transmission unit monitoring module includes a central processing unit (Central Processing Unit, CPU) control module, a wireless data acquisition module, a power module, and a long term evolution (Long Term Evolution, LTE) module. The central processing unit control module processes and controls the switch of the data transmission unit monitoring module and controls the working mode of the data transmission unit monitoring module. The wireless data acquisition module comprises an acquisition module and a wireless transmission module, wherein the acquisition module comprises a programmable control device (Programmale Logic Controller, PLC), an acquisition card and an analog-to-digital converter, and the wireless transmission module uses a wireless data transmission network to carry out information transmission between equipment and a host. The programmable control device adopts a programmable memory to execute logic operation, sequence control, timing and arithmetic operation instructions, inputs or outputs various mechanical processes in a digital or analog form, judges the normal operation of the system through data in the acquisition system, and calculates logic configuration output calculation results through acquisition information. The acquisition card captures the analog signal and transmits the analog signal to the host through the wireless transmission module. The power module supplies power to the load. The long-term evolution technical module is used for the data transmission unit monitoring module to communicate with the outside, and receiving, processing and sending information to the control module or the outside. The long-term evolution technology module is a 4G network technology and refers to an orthogonal frequency division multiplexing and multiple input multiple output key technology, so that the frequency spectrum efficiency and the data transmission rate bandwidth are increased. The OFDM technology divides the available frequency spectrum into a plurality of sub-carriers, each sub-carrier can transmit a low-speed data sequence, and the frequency is not easy to be weakened due to the small bandwidth of the sub-carrier; the mimo technology is to increase the number of antenna base stations at the input and output ends, improve the communication quality, increase the channel capacity, and increase the spectral efficiency and the data transmission rate bandwidth.

In a specific embodiment, the information calculation and analysis module is used for analyzing wireless communication of the charging and changing box transformer cabinet of the new energy automobile, and comprises a control unit, an operation unit, an analysis module and a storage unit. The control unit adopts an embedded technology for information centralization and decision, and temporarily stores the information into the storage unit. The storage unit is used for storing the information transmitted by the control unit and the data result analyzed by the operation unit. The operation unit receives the storage unit information and performs data analysis, and an analysis result of the operation unit is stored in the storage unit.

In a specific embodiment, the transmitting module is configured to transmit the overall wireless communication module electromagnetic wave. The transmitting module comprises a radio frequency regulator, a power amplifier, an antenna coupling circuit and a low-noise amplifying module, and the transmitting information of the transmitting module has two transmitting modes, and the first transmitting mode transmits the coordinates of the variable-frequency analog signals regulated by the regulator; the second transmission mode is a complex adjusted up-converted signal and an adjusted up-converted signal generated by transmitting the coordinate signal. The transmitting module converts the signal to be transmitted into high-frequency electric oscillation with enough intensity by using the radio frequency module, converts the high-frequency oscillation into electromagnetic waves during transmitting, and the electromagnetic waves can be freely transmitted in a transmission medium, and the transmitting signal is transmitted to a target signal in the form of the electromagnetic waves.

In a specific embodiment, the signal receiving module is configured to receive, identify or transmit the received data information. The signal receiving module comprises an antenna, a receiving module, a data sampling module and a reference voltage generating module. The electromagnetic wave finds the information return of the target signal, the returned electromagnetic wave needs to be received by an antenna, the electromagnetic wave is converted into high-frequency electric vibration, the high-frequency electric vibration is converted into a data signal through a receiving module, the data sampling module collects the input signal, and the reference voltage difference method is adopted to determine the bit value of the input signal. The reference voltage generating module performs a pre-tuning operation and a post-tuning operation to generate a reference voltage, the tuning being to adjust a frequency of the signal to a desired frequency.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.

Claims

1. A new energy automobile fills and trades electronic box and becomes rack wireless communication system, its characterized in that: comprising the following steps:

2. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the fault detection module comprises a central processing unit, an information acquisition module, an A/D conversion module, a D/A conversion module, an acquisition interface, a power module, an SPI bus module, a data display unit, an external expansion circuit module, a data conversion interface, a wireless data interface, an upper computer, an information filtering module and a relay switch circuit, wherein the information acquisition module is connected with the acquisition interface, the acquisition interface is connected with the A/D conversion module and the D/A conversion module, the central processing unit is connected with the A/D conversion module, the D/A conversion module, the data conversion interface, the SPI bus module and the wireless data interface, the SPI bus module is connected with the data display unit and the external expansion circuit module, the external expansion circuit module is connected with the information filtering module, the information filtering module is connected with the relay switch circuit, and the wireless data interface is connected with the upper computer.

3. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the information isolation module comprises a PFGA main control module and a data filter connected with the PFGA main control module.

4. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the main control module comprises an STM32F103 single chip microcomputer, and an embedded memory, an RS485 module, a GPRS module, a WiFi module and an SPI interface which are connected with the STM32F103 single chip microcomputer.

5. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the optimal searching module of the communication node adopts a big data model to search information, and the working method is as follows:

step one, constructing an artificial fish model with a big data model,

X _v ＝X+Visual×Rand()max E (1)

in the formula (2), step is represented as a model Step length, X _next The method comprises the steps of representing an operation state updating state function of a cabinet of the box transformer in the wireless communication process; max E represents target data information of the running state of the cabinet of the wireless communication process box transformer;

wherein the function of max E is expressed as:

step two: setting initialization parameters

in the formula (4), the wireless communication data information is n _c The central state is X _c ，Y _c /n _c Indicating the degree of congestion, X _i Representing the form of artificial fish information selected at will in the perceptible range, X _j Indicating an optimal state in the wireless communication process;

the foraging function equation is:

in the formula (5), in the foraging process of the data information of different cabinet change cabinets, the foraging update function equation is as follows:

if the termination condition is not satisfied, the optimal solution communication node is not found, and the K-means behavior is executed to give the following particle swarm function expression to the fish swarm rear-end collision:

in the formula (7), Y _i ＝f(X _i ) Representing an objective function, X _i Representing the current position of the artificial fish, rand () represents a random number between 0 and 1, step represents a Step size, and X _j Representing a new state within the field of view;

the random function equation is:

X _i/next ＝X _i +Rand()×Step×max E (8)

in the formula (8), X _i/next Representing the current or next position of the AFS;

step three: an output of the wireless communication protocol;

6. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the communication protocol configuration module realizes the matching of the data information through the protocol content, the protocol address or the protocol format.

7. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the communication carrier power allocation algorithm module comprises a water injection algorithm model, wherein the working method of the water injection algorithm model comprises the following steps:

S _i ＝λ-γ _i ^-1 ，i＝1，2，...，N (9)

S _i ＝maX{0，λ-γ _i ^-1 }，i＝1，2，...，N (10)

calculating channel capacity allocated by communication power allocation of cabinet to be changed, wherein in formula (11), P _T (f _n )、h(f _n )、N _R (f _n ) Respectively representing the allocated power, frequency response and noise power of the sub-channels.

8. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the communication error calculation module comprises an ARM 32-bit Cortex TM-M4 processor, an analog acquisition circuit and an error calculation chip, wherein the analog acquisition circuit and the error calculation chip are connected with the processor.

9. The new energy automobile fills and trades electronic box and becomes rack wireless communication system of claim 1, characterized in that: the information transmission monitoring module comprises an abnormality alarming module.