CN104698944A - FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts - Google Patents

Abstract

The invention relates to an FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with an X-ray detector for steel cord conveyor belts; the apparatus mainly comprises a photoelectric conversion control module, a signal acquisition control module and a data correction and homogenization treatment module; the photoelectric conversion control module realizes sequential control to a photoelectric conversion device so as to convert X-ray signals into electrical signals; and the data correction and homogenization treatment module realizes compensation to data deviation caused by the non-uniformity of a belt radian and a photoelectric conversion pixel; the rapid, real-time and accurate online monitoring of the X-ray detector to the steel cords of the conveyor belts can be facilitated; moreover, the control of each part of the X-ray detector and all signal treatment algorithms are realized on the basis of one FPGA, so that the whole detector has higher integration level and lower complexity.

Description

A kind of steel cable core conveying belt x-ray detector collection control based on FPGA and signal processing apparatus

Technical field

The collection control of a kind of steel wire rope core of conveyer belt x-ray detector realized based on FPGA that the present invention is specifically related to photoelectric detecting technology and system and safety detection and monitoring field and signal processing apparatus.

Background technology

Steel cable core conveying belt is the vitals of belt conveying machine travel and delivery, has been widely used in the fields such as coal, mine, harbour, electric power, metallurgy, chemical industry.In use, because steel cable core conveying belt load capacity increases, scratched by the foreign matter such as scrap iron and steel or spoil or barrier, make conveying belt aging in the presence of a harsh environment for a long time, the mounting and adjusting of conveyor is improper, Steel cord overlapping splice and the reason such as sulfuration is bad and produce the faults such as Steel cord fracture, scuffing, corrosion, joint elongation, great broken belt security incident will be caused once break down and stop production, the loss of transported material, the damage of equipment, huge economic loss and casualties, have a strong impact on safety in production.

" steel wire rope core of conveyer belt X-ray on-Line Monitor Device " be adopt the development of X-ray lossless detection technology on-line checkingi conveying belt in the safety and nondestructive pick-up unit of Steel cord fault.This device can detect steel wire rope core of conveyer belt image by remote online, real-time storage and display Steel cord image, treatment and analyses is carried out to Steel cord image, find Steel cord fracture, scuffing, corrosion, joint elongation or overlapping splice is lack of standardization is separated faults such as (coming unstuck) with rubber with Steel cord, and alarm, provide results of performance analysis, advanced, safe and reliable, easy to install, the real-time detection that possesses skills, accuracy be high, the advantage such as intuitive display; The generation of great broken belt security incident can be avoided, the damage of equipment, stop production and casualties, reduce loss and the economic loss of transported material, enhance productivity, there is significant Social and economic benef@.This device can be widely used in the occasion that the fields such as coal, mine, harbour, electric power, metallurgy, chemical industry use steel cable core conveying belt, is specially adapted to the safety detection of conveying belt in coal production.

" steel wire rope core of conveyer belt X-ray on-Line Monitor Device " is made up of x-ray generator, high speed X light detector, computing machine and software and power supply etc., and its composition frame chart as shown in Figure 1.High speed X light detector is made up of photoelectric conversion module, signal acquisition module, signal transacting transport module and power module.This device course of work is that the X-ray that x-ray generator is launched is irradiated on the photoelectric conversion module of high speed X light detector through running steel cable core conveying belt, and the light signal of steel wire rope core of conveyer belt image is converted to electric signal by photoelectric conversion module; This electric signal is converted to digital signal by the signal acquisition module of high speed X light detector, gives signal transacting transport module; After signal transacting transport module processes this digital signal, be transferred to computing machine (PC) by Ethernet; After computing machine receives the signal of signal transacting transport module, shown in real time by software, store steel wire rope core of conveyer belt image, fault is extracted, analyzes and is judged to use image procossing, recognizer to extend the fracture of steel wire rope core of conveyer belt, scuffing, corrosion, joint or overlapping splice is lack of standardization etc., and alarm, provide strength character analysis result.

X-ray signal transacting is that the difficult point of steel wire rope core of conveyer belt X-ray on-line monitoring is with crucial.For high speed X light detector, when expecting that light intensity is identical, response or the output of each pixel are consistent.But in practice, under blocking same thickness object situation above same X-ray exposure intensity or detector, the response of each pixel of detector there are differences, the heterogeneity of Here it is so-called detector.

The pixel response of x-ray detector can be represented by following formula

Y _i＝R _i*φ+X _i0

Wherein, Y _irepresent the output of i-th pixel, Φ represents the intensity of the light being irradiated to i-th pixel, and Ri represents the conversion efficiency of this pixel to light, X _i0represent the background noise of this pixel.Above formula shows, the pixel response quality of detector exists the influence factor of following several respects:

First, the X of each pixel of linear array detector _i0be different, main cause has two, and one is that the dark current of each diode is different, and two is that each diode discharge circuit below there are differences;

Secondly, the R of each pixel _ibe different, mainly each pixel there are differences due to the reason of technique, causes, pixel inner parameter there are differences, the in fact R of each pixel as pixel dimension is not of uniform size _iitself neither constant, be along with the size of Φ also changes;

In addition, when X-ray light source sends the light of same intensity, the intensity arriving the light of each pixel is also different, because light source is inconsistent to the distance of each pixel.The intensity of X-ray line distributes according to the shooting angle of X-ray, namely shooting angle is less, the intensity of light is larger, and the intensity therefore arriving the light of the pixel of the centre of linear array detector is greater than the intensity of the light arriving both sides, and this is also cause the heteropical factor of detector.The striped that the heterogeneity of detector causes the image detected to there is gray scale differing, has a strong impact on picture quality.

Based on above-mentioned analysis, forefathers have studied the image rectification, homogenising and the filtering algorithm that improve steel cable core conveying belt x-ray image quality.The integrated operation flow process of the X-ray signal processing method that " steel wire rope core of conveyer belt X-ray on-Line Monitor Device " adopts as shown in Figure 2, generally be divided into two stages in the specific implementation, namely first according to demand, the correction coefficient G of an x-ray source strength and each pixel is determined _i, hereinafter referred to as the parameter acquiring stage, in this stage, denoising to be carried out to correction coefficient; Then be the application stage, realize the correction to steel cable core conveying belt to be detected.

The operating process in parameter acquiring stage is as follows:

Step 1, closes x-ray source, obtains the output valve A without the x-ray detector under X-ray illuminate condition _i, wherein i represents i-th pixel of x-ray detector;

Step 2, utilizes x-ray detector, obtains steel cable core conveying belt x-ray image;

Step 3, according to the width of steel cable core conveying belt to be measured, thickness and Steel cord diameter, steel cable core conveying belt x-ray image to be measured under utilizing experiment to obtain different x-ray source strength, based on the feature of steel cable core conveying belt x-ray image pixel value change curve to be measured, determine a suitable gamma ray source strength, make the imaging region of steel cable core conveying belt to be measured all be operated in the linear zone of X-ray response;

Step 4, between x-ray detector and x-ray source, the rubber conveyer belt of horizontal positioned one section material identical with steel cable core conveying belt to be measured, width and degree, opens x-ray source, obtains the output valve B of x-ray detector under this condition _i, wherein i represents i-th pixel of x-ray detector;

Step 5, by following formula

$G_i=\left\{\begin{array}{cc}1& B_i\≤A_i\\ \frac{255\×80\%}{B_i-A_i}& B_i>A_i\end{array}\right.$

Obtain the correction coefficient G of each pixel _i, wherein i represents i-th pixel of X-ray linear array detector.

Step 6, for removing noise, obtaining K frame pixel continuously according to the method described above, and averaging process to K frame pixel, using the mean value of K frame as the final correction coefficient G removed after noise _i', and stored, to guarantee that this parameter value power-off is not lost, wherein i represents i-th pixel of x-ray detector.

The average denoising principle of frame:

Carry out pixel correct and Homogenization Treatments time, need to obtain respectively do not add conveying belt open X-ray and pass X-ray condition under a frame pixel value, as the correction coefficient in correcting algorithm.But due to the impact of the factors such as the noise that the instability of X-ray signal, the instability of Acquisition Circuit output signal and circuit board produce, under identical conditions, same pixel also has error and change within the different time.So, for improving the accuracy of correcting algorithm, handling averagely must be done to the switch light image unit got, to improve the noise resisting ability of algorithm.Otherwise, if correcting algorithm based on correction coefficient there is comparatively big error, then the effect corrected is also desirable not to the utmost.Noise due to pixel meets the Gaussian distribution that average is 0, if so multiframe pixel is averaged, then can reach the object of smooth noise.Theoretically, if it is infinitely great to be average frame number K, then suffered by the pixel after average, noise is 0, because the average of Gaussian noise is 0.In systems in practice, K value is determined by balance denoising performance and implementation complexity.

The operating process of application stage is as follows:

Step 1, restarts x-ray detector at every turn, all first performs this step, namely closes x-ray source, obtains the output valve A without the x-ray detector under X-ray illuminate condition _i, wherein i represents i-th pixel of x-ray detector;

Step 2, opens x-ray source, under the x-ray source strength of setting, obtains the output valve C of now x-ray detector _i, wherein i represents i-th pixel of x-ray detector;

Step 3, by following formula

$D_i=\left\{\begin{array}{cc}0& C_i\≤A_i\\ {G_i}^{\′}\×(C_i-A_i)& C_i>A_i\end{array}\right.$

Obtain the output valve D after correcting _i, wherein i represents i-th pixel of x-ray detector.

Summary of the invention

The object of the invention is to propose a kind of steel cable core conveying belt x-ray detector collection control based on FPGA and signal processing apparatus, steel wire rope core of conveyer belt is carried out fast, in real time, on-line monitoring accurately, and improve x-ray detector integrated level, reduce difficulty and the complexity of multiprocessor collaborative work, effectively reduce board area and installation cost.

Technical scheme of the present invention:

Based on the collection control of steel cable core conveying belt x-ray detector and a signal processing apparatus of FPGA, it is characterized in that: described collection controls to comprise instruction response and kernel scheduling module, opto-electronic conversion control module, signals collecting control module, frame format sorting module, frame averaging module, Flash Read-write Catrol module, Data correction and Homogenization Treatments module, data cache module and bus timing conversion module with signal processing apparatus:

Instruction response and kernel scheduling module realize identifying to instruction ARM, translating and command FPGA to carry out action response;

Opto-electronic conversion control module realizes the sequential control to photoelectric conversion device, thus X-ray signal is converted into electric signal;

Signals collecting control module realizes the sequential control to signal pickup assembly, thus gathers photoelectric conversion signal;

Frame format sorting module realizes the serial data arranged by the N channel parallel data collected as meeting a frame sequential form, and N is positive integer;

Frame averaging module realizes K frame data calculating mean value, and with stress release treatment impact, obtain correction coefficient accurately, K is positive integer;

The realization of Flash Read-write Catrol module is to the storage of correction coefficient, photoelectric commutator quantity and yield value and reading;

The data deviation that Data correction and Homogenization Treatments module realize being caused by belt radian and opto-electronic conversion pixel nonuniformity compensates;

Data cache module realizes to the buffering of image data and correction data with temporary, to output to ARM;

Bus timing conversion module realizes bus widening and the data interaction of FPGA and ARM.

Beneficial effect of the present invention:

The present invention is based on FPGA and realize collection control in steel cable core conveying belt x-ray detector and signal processing apparatus, be conducive to carrying out fast steel wire rope core of conveyer belt, in real time, on-line monitoring accurately.Based on a slice FPGA realization to the control of x-ray detector each several part and all signal processing algorithms, whole detector is made to have higher integrated level and lower complexity.

Accompanying drawing explanation

Fig. 1 is steel wire rope core of conveyer belt X-ray on-Line Monitor Device composition frame chart

Fig. 2 is the integrated operation process flow diagram of X-ray signal processing method

Fig. 3 is the structured flowchart of signal acquisition module

Fig. 4 is the structured flowchart of signal transacting transport module

Fig. 5 is the collection control and the theory diagram of signal processing apparatus that realize based on FPGA

Fig. 6 is the steel wire rope core of conveyer belt X-ray on-line monitoring image utilizing this device to realize

Embodiment

Below in conjunction with accompanying drawing with by embodiment, the specific embodiment of the present invention is described further:

The present invention has developed a kind of steel cable core conveying belt x-ray detector collection control based on FPGA and signal processing apparatus, it is characterized in that: described collection controls to comprise instruction response and kernel scheduling module, opto-electronic conversion control module, signals collecting control module, frame format sorting module, frame averaging module, Flash Read-write Catrol module, Data correction and Homogenization Treatments module, data cache module and bus timing conversion module with signal processing apparatus:

Instruction response and kernel scheduling module realize identifying to instruction ARM, translating and command FPGA to carry out action response;

Opto-electronic conversion control module realizes the sequential control to photoelectric conversion device, thus X-ray signal is converted into electric signal;

Signals collecting control module realizes the sequential control to signal pickup assembly, thus gathers photoelectric conversion signal;

Frame format sorting module realizes the serial data arranged by the N channel parallel data collected as meeting a frame sequential form, and N is positive integer;

Frame averaging module realizes K frame data calculating mean value, and with stress release treatment impact, obtain correction coefficient accurately, K is positive integer;

The realization of Flash Read-write Catrol module is to the storage of correction coefficient, photoelectric commutator quantity and yield value and reading;

The data deviation that Data correction and Homogenization Treatments module realize being caused by belt radian and opto-electronic conversion pixel nonuniformity compensates;

Data cache module realizes to the buffering of image data and correction data with temporary, to output to ARM;

Bus timing conversion module realizes bus widening and the data interaction of FPGA and ARM.

Described instruction response and kernel scheduling module utilize Case statement to realize totally 9 kinds of external commands by real-time judge 8 bit instruction signal level and respond and action scheduling operation, comprising:

Receive 8 bit instruction bytes " 00000000 ", then do not perform any action, gather and control to be in reset mode with signal processing apparatus;

Receive 8 bit instruction bytes low 3 for " 000 ", and high 5 non-full zeros, then using high 5 bit value as the quantitative value of photoelectric commutator stored in Flash, and initialization photoelectric commutator quantitative variation, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes low 3 for " 001 ", then using high 5 bit value as the yield value of photoelectric commutator stored in Flash, and initialization photoelectric commutator gain variables, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000010 ", then using form collator and the frame sampling data after being averaged as pass light correction coefficient stored in Flash, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000011 ", then using form collator and the frame sampling data after being averaged as correction coefficient of opening the light stored in Flash, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000100 ", then read the photoelectric commutator quantitative value in Flash, yield value, a frame open the light correction coefficient and a frame closes light correction coefficient, initialization photoelectric commutator quantitative variation, gain variables, it is utilized to correct and Homogenization Treatments the sampled data after form collator stored in buffer area switch light correction coefficient, and by the data after process stored in transmission buffer area, often deposited a frame and exported a trigger pulse triggering ARM and read;

Receive 8 bit instruction bytes " 00000101 ", then stop all working, resetting to gather controls and signal processing apparatus, and end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000110 ", then the frame successively read in Flash closes light correction coefficient and a frame and to open the light correction coefficient, stored in transmission buffer area, has often deposited a frame and has exported a trigger pulse triggering ARM and read;

Receive 8 bit instruction bytes " 00000111 ", then read photoelectric commutator quantitative value, the yield value in Flash, initialization photoelectric commutator quantitative variation, gain variables, by the sampled data after form collator stored in transmission buffer area, often deposit a frame and exported a trigger pulse triggering ARM and read.

Described frame format sorting module comprises parallel serial conversion, writing address generator, dual port RAM, reading address generator four part:

Parallel serial conversion realizes the N channel parallel data collected to become a road serial data;

The buffer area that dual port RAM arranges as frame format;

Writing address generator realizes the data of a non-frame sequential form stored in dual port RAM;

Reading address generator realizes data to read from dual port RAM according to a frame sequential form.

Described frame averaging module comprises totalizer, writing address generator, dual port RAM, reading address generator four part:

Totalizer realizes the current frame data of input and the accumulation result read from dual port RAM to carry out additive operation;

Dual port RAM is as the buffer area of accumulation result;

Writing address generator realizes this additive operation result stored in dual port RAM;

Reading address generator realizes accumulation result to read from dual port RAM.

Described Data correction and Homogenization Treatments module comprise subtracter, multiplier, divider three part:

Subtracter realizes image data and the subtraction closing light correction coefficient, and open the light correction coefficient and the subtraction closing light correction coefficient;

Multiplier realizes image data and closes the multiplying that light correction coefficient subtracts each other result and normaliztion constant;

Divider realizes the division arithmetic that multiplier Output rusults and switch light correction coefficient subtract each other result.

Described data cache module selects dual port RAM.

Embodiment

A kind of for the present invention steel cable core conveying belt x-ray detector collection control based on FPGA and signal processing apparatus are applied to and comprise in the steel wire rope core of conveyer belt x-ray detector of 4 groups of photoelectric commutators.

Figure 3 shows that the structured flowchart of signal acquisition module in detector.Photoelectric conversion module comprises 4 groups of photoelectric conversion plates, often organizes photoelectric conversion plate and connects 4 pieces of (maximum 8 pieces) photoelectric conversion plates by series system, produce 1 road serial electric signal; Carry out after the 4 road serial electric signals that 4 groups of photoelectric conversion plates produce send into signal acquisition module simultaneously amplifying, filtering and A/D conversion, improve signal acquisition rate.Signal conditioning circuit by penetrating a grade follower, difference turns single-end circuit and differential amplifier forms; A/D change-over circuit adopts the AD7667 chip of TI company, and with 16 bit serial data layout output digit signals to signal transacting transport module, sampling rate is 4MSPS.

Figure 4 shows that the structured flowchart of signal transacting transport module.Signal transacting transport module forms primarily of the circuit such as FPGA, ARM9 and Ethernet interface.FPGA circuit realiration signals collecting, A/D conversion, denoising, School Affairs Homogenization Treatments etc. collections control and signal processing function.ARM circuit realiration exports reception, the transfer of data to FPGA, and is transferred to computing machine (PC) by Ethernet.

Signal between FPGA and ARM specifically comprises: 12 bit address lines, 16 position datawires, the control signal hclk of 3 reading dual port RAMs, noe, ncs, 1 is triggered the look-at-me end_for_arm that ARM reads dual port RAM, (the regulation instruction of host computer being issued ARM is encapsulated in first 8 bit byte of IP data inclusion for 8 command signal line, low 3 bit representation instructions, the data that high 5 bit representation instructions are corresponding, ARM by this transferring order to FPGA, corresponding actions is performed) by FPGA, 1 confirm_flag look-at-me (each action executing complete after, to this signal of ARM, trigger ARM and return a verification value to host computer).

Figure 5 shows that the theory diagram of collection control and the signal processing apparatus realized based on FPGA.In this embodiment, 4 road parallel acquisition data are converted to a road serial data by frame format sorting module, and namely N is 4; In frame averaging module, by balance denoising performance and implementation complexity, electing the average frame number K value of calculating as 256, namely calculating average as opening the light and closing light correction coefficient to gathering continuous 256 frame data of coming in; In Data correction and Homogenization Treatments module, normaliztion constant elects 255 × 80% as.

Figure 6 shows that the steel wire rope core of conveyer belt X-ray on-line monitoring image realized based on the present invention.Can see, use the collection control and signal processing apparatus that the present invention is based on FPGA realization, obtain high-quality steel wire rope core of conveyer belt X-ray detection image, illustrate utilize the present invention can carry out fast steel wire rope core of conveyer belt, in real time, on-line monitoring accurately.

Claims (6)

1. based on the collection control of steel cable core conveying belt x-ray detector and a signal processing apparatus of FPGA, it is characterized in that: described collection controls to comprise instruction response and kernel scheduling module, opto-electronic conversion control module, signals collecting control module, frame format sorting module, frame averaging module, Flash Read-write Catrol module, Data correction and Homogenization Treatments module, data cache module and bus timing conversion module with signal processing apparatus:

Instruction response and kernel scheduling module realize identifying to instruction ARM, translating and command FPGA to carry out action response;

Opto-electronic conversion control module realizes the sequential control to photoelectric conversion device, thus X-ray signal is converted into electric signal;

Signals collecting control module realizes the sequential control to signal pickup assembly, thus gathers photoelectric conversion signal;

Frame format sorting module realizes the serial data arranged by the N channel parallel data collected as meeting a frame sequential form, and N is positive integer;

Frame averaging module realizes K frame data calculating mean value, and with stress release treatment impact, obtain correction coefficient accurately, K is positive integer;

The realization of Flash Read-write Catrol module is to the storage of correction coefficient, photoelectric commutator quantity and yield value and reading;

The data deviation that Data correction and Homogenization Treatments module realize being caused by belt radian and opto-electronic conversion pixel nonuniformity compensates;

Data cache module realizes to the buffering of image data and correction data with temporary, to output to ARM;

Bus timing conversion module realizes bus widening and the data interaction of FPGA and ARM.

2. a kind of steel cable core conveying belt x-ray detector collection control based on FPGA according to claim 1 and signal processing apparatus, it is characterized in that: described instruction response and kernel scheduling module utilize Case statement to realize totally 9 kinds of external commands by real-time judge 8 bit instruction signal level and respond and action scheduling operation, comprising:

Receive 8 bit instruction bytes " 00000000 ", then do not perform any action, gather and control to be in reset mode with signal processing apparatus;

Receive 8 bit instruction bytes low 3 for " 000 ", and high 5 non-full zeros, then using high 5 bit value as the quantitative value of photoelectric commutator stored in Flash, and initialization photoelectric commutator quantitative variation, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes low 3 for " 001 ", then using high 5 bit value as the yield value of photoelectric commutator stored in Flash, and initialization photoelectric commutator gain variables, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000010 ", then using form collator and the frame sampling data after being averaged as pass light correction coefficient stored in Flash, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000011 ", then using form collator and the frame sampling data after being averaged as correction coefficient of opening the light stored in Flash, end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000100 ", then read the photoelectric commutator quantitative value in Flash, yield value, a frame open the light correction coefficient and a frame closes light correction coefficient, initialization photoelectric commutator quantitative variation, gain variables, it is utilized to correct and Homogenization Treatments the sampled data after form collator stored in buffer area switch light correction coefficient, and by the data after process stored in transmission buffer area, often deposited a frame and exported a trigger pulse triggering ARM and read;

Receive 8 bit instruction bytes " 00000101 ", then stop all working, resetting to gather controls and signal processing apparatus, and end of operation output action is finished confirmation pulse;

Receive 8 bit instruction bytes " 00000110 ", then the frame successively read in Flash closes light correction coefficient and a frame and to open the light correction coefficient, stored in transmission buffer area, has often deposited a frame and has exported a trigger pulse triggering ARM and read;

Receive 8 bit instruction bytes " 00000111 ", then read photoelectric commutator quantitative value, the yield value in Flash, initialization photoelectric commutator quantitative variation, gain variables, by the sampled data after form collator stored in transmission buffer area, often deposit a frame and exported a trigger pulse triggering ARM and read.

3. a kind of steel cable core conveying belt x-ray detector collection control based on FPGA according to claim 1 and signal processing apparatus, is characterized in that: described frame format sorting module comprises parallel serial conversion, writing address generator, dual port RAM, reading address generator four part:

Parallel serial conversion realizes the N channel parallel data collected to become a road serial data;

The buffer area that dual port RAM arranges as frame format;

Writing address generator realizes the data of a non-frame sequential form stored in dual port RAM;

Reading address generator realizes data to read from dual port RAM according to a frame sequential form.

4. a kind of steel cable core conveying belt x-ray detector collection control based on FPGA according to claim 1 and signal processing apparatus, is characterized in that: described frame averaging module comprises totalizer, writing address generator, dual port RAM, reading address generator four part:

Totalizer realizes the current frame data of input and the accumulation result read from dual port RAM to carry out additive operation;

Dual port RAM is as the buffer area of accumulation result;

Writing address generator realizes this additive operation result stored in dual port RAM;

Reading address generator realizes accumulation result to read from dual port RAM.

5. a kind of steel cable core conveying belt x-ray detector collection control based on FPGA according to claim 1 and signal processing apparatus, is characterized in that: described Data correction and Homogenization Treatments module comprise subtracter, multiplier, divider three part:

Subtracter realizes image data and the subtraction closing light correction coefficient, and open the light correction coefficient and the subtraction closing light correction coefficient;

Multiplier realizes image data and closes the multiplying that light correction coefficient subtracts each other result and normaliztion constant;

Divider realizes the division arithmetic that multiplier Output rusults and switch light correction coefficient subtract each other result.

6. a kind of steel cable core conveying belt x-ray detector collection control based on FPGA according to claim 1 and signal processing apparatus, is characterized in that: described data cache module selects dual port RAM.