CN106137196B - Can loading firmware method for down loading and download system, MR imaging apparatus - Google Patents

Can loading firmware method for down loading and download system, MR imaging apparatus Download PDF

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Publication number
CN106137196B
CN106137196B CN201510145880.6A CN201510145880A CN106137196B CN 106137196 B CN106137196 B CN 106137196B CN 201510145880 A CN201510145880 A CN 201510145880A CN 106137196 B CN106137196 B CN 106137196B
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China
Prior art keywords
receiver
instruction
download
loading
loading firmware
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CN201510145880.6A
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Chinese (zh)
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CN106137196A (en
Inventor
谢树群
戴光宝
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西门子(深圳)磁共振有限公司
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Abstract

This application discloses can loading firmware method for down loading and download system, MR imaging apparatus.Wherein, can loading firmware method for down loading, comprising: to can loading firmware data encode, generate digital radio signal pulse, and be applied to a download sequence in;One transmitter emits the download sequence to a receiver;Receiver receives the download sequence, and decodes to the download sequence, can loading firmware data described in acquisition.The application using MRI machine radio-frequency transmissions and receive small signal path, rather than common bus come download can loading firmware, thus improve can loading firmware speed of download.

Description

Can loading firmware method for down loading and download system, MR imaging apparatus

Technical field

The present invention relates to the field of medical instrument technology, especially can loading firmware (loadware or loadable Firmware method for down loading), can loading firmware download system, further relate to MR imaging apparatus.

Background technique

Multiple equipment, such as analog receiver sum number are generally included in the receiving channel of magnetic resonance imaging (MRI) system Word receiver.Analog receiver and digit receiver are used to execute the receive capabilities of magnetic resonance (MR) signal, including data acquisition, Digital filtering, demodulation etc..Analog receiver and digit receiver usually have field programmable gate array (FPGA), ARM or Digital Signal Processing (DSP) program, these programs can be downloaded from the host computer of such as MRI machine main control computer and can be loaded admittedly Number of packages evidence arrives hardware.

According to the control of different MRI machines and communication system architecture, the equipment of receiving channel can be connected to different Bus, such as PCIe, CAN, Ethernet or other communication bridges.Usually, host computer is straight according to specific bus protocol Connecing can loading firmware data to equipment transmission.

By bus directly download can loading firmware data in the case where, need equipment to be directly connected to bus, and Host computer is able to access that.If bus speed is lower (such as CAN bus), downloading can the speed of loading firmware data also can It is restricted.

Summary of the invention

In view of this, one aspect of the present invention propose can loading firmware method for down loading, on the other hand also proposed can add Carry the download system of firmware, it is also proposed that use the MR imaging apparatus of the method for down loading and download system.

According to an aspect of the invention, there is provided it is a kind of can loading firmware method for down loading, comprising:

To can loading firmware data encode, generate digital radio signal pulse, and be applied to a download sequence in;

One transmitter emits the download sequence to a receiver;

Receiver receives the download sequence, and decodes to the download sequence, can loading firmware data described in acquisition.

Optionally, this method further comprises: before emitting the download sequence, Xiang Suoshu receiver is sent at the beginning The instruction of downloading, the receiver enter download state after receiving the instruction for starting downloading;And/or it is received in receiver After the download sequence, Xiang Suoshu receiver sends an instruction for stopping downloading, and the receiver is receiving stopping downloading Instruction after enter normal condition.

Optionally, the instruction for starting downloading and/or the instruction for stopping downloading being sent by a bus;Alternatively, The instruction for starting downloading and/or the instruction for stopping downloading being sent by a sequence.

In one embodiment, after the decoding further include: receiver can one caching of loading firmware data write-in by described in;It connects It receives device and flash memory is written into data in caching, and can loading firmware data described in load from the flash memory.

Preferably, the download sequence is a service sequences.

According to a further aspect of the invention, provide it is a kind of can loading firmware download system, comprising:

One main control computer, for can loading firmware data encode, generate digital radio signal pulse, and apply In a download sequence;

One transmitter, for emitting the download sequence;

One receiver is decoded for receiving the download sequence, and to the download sequence, can loading firmware described in acquisition Data.

Optionally, the main control computer is also used to before emitting the download sequence, and Xiang Suoshu receiver sends one Start the instruction of downloading;And/or after receiver has received the download sequence, Xiang Suoshu receiver is sent under a stopping The instruction of load.The receiver enters downloading mode after receiving the instruction for starting downloading, in the case where receiving the stopping Enter normal condition after the instruction of load.

In one embodiment, the receiver includes an instruction monitoring module, decoded for monitoring the receiver Whether message includes the instruction for starting downloading or the instruction for stopping downloading.

Optionally, the receiver be also used to by it is described can loading firmware data write-in one caching;Data in caching are write Enter flash memory, and can loading firmware data described in load from the flash memory.

According to the application's in another aspect, providing a kind of MR imaging apparatus, including any one can as described above The download system of loading firmware.In the above-mentioned technical proposal of the application, the radio-frequency transmissions and the small signal of reception of MRI machine are utilized Channel, rather than common bus come download can loading firmware, thus improve can loading firmware speed of download, such as from 30 Minute is reduced to 1~5 minute.

Detailed description of the invention

Below will detailed description of the present invention embodiment by referring to accompanying drawing, the person of ordinary skill in the art is more clear that Above and other feature and advantage of the invention, in attached drawing:

Fig. 1 be according to one embodiment of the invention can loading firmware download system structural schematic diagram, which is located at In one MRI machine.

Fig. 2 be according to another embodiment of the present invention can loading firmware method for down loading flow diagram.

Wherein, appended drawing reference is as follows:

100: can loading firmware download system

110: main control computer

120: transmitter

130: receiver

140: scan control module

150: data acquisition and reconstruction module

160:MRI scanner

S210 to S300 be it is above-mentioned can step in the method for down loading of loading firmware

Specific embodiment

For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed Bright specific embodiment, identical label indicates identical part in the various figures.

Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.

To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand Component only symbolically depicts one of those, or has only marked one of those.

Herein, "one" not only indicates " only this ", can also indicate the situation of " more than one ".Herein In, " first ", " second " etc. are only used for mutual differentiation, rather than indicate their significance level and sequence and exist each other Premise etc..

Fig. 1 show it is according to an embodiment of the invention can loading firmware download system structural schematic diagram.Referring to figure 1, this can loading firmware download system 100 include 110, transmitters 120 of a main control computer and a receiver 130, and the download system 100 is a part of MRI machine.

Wherein, main control computer 110 is usually primary user's console in MRI machine, it usually acquires operator's input Parameter and instruction, measurement sequencer program etc..Main control computer 110 is the host computer of hardware in MRI machine.In the present embodiment In, stored in main control computer 110 can loading firmware file.

Transmitter 120 is a RF small signal process unit, has digital-to-analogue conversion (DAC) module, which will Digital RF pulses switch is the simulation small signal of RF.The output of transmitter 120 may be also connected to a RF power amplifier.

In an embodiment of the present invention, there is test signal circuit (" Loop ") to be connected to the transmitter 120, the test Signal is commonly used in system debug.In the present embodiment, can use the test signal circuit channel to realize receiver can Loading firmware downloading.

Receiver 130 have analog-to-digital conversion (ADC) module, the ADC module by analog signal (such as MR signal convert For digital signal), and initial data is sent to data acquisition and rebuilds module 150.In MRI machine, receiver 130 is also It is connected to other components, such as coil and channel signal routing module.

This can loading firmware download system 100 be MRI machine a part.In mri other are also shown in Fig. 1 Components, for example, be connected between main control computer 110 and transmitter 120 scan control module 140, be connected to master control calculating Data acquisition and reconstruction module 150 and MRI scanner 160 between machine 110 and receiver 130.

Wherein, scan control module 140 usually controls Surrounding Parts during scanning, explains and execute coming from master control meter The instruction of calculation machine 110 sends digital RF (RF)/gradient pulse to corresponding device.

Data acquisition and reconstruction module 150 are rebuild from the reception initial data of receiver 130, finally to be believed Number or MR image.

Traditional digital signal communication system is also shown in Fig. 1.Main control computer 110 passes through scan control module 140 and transmitter 120 encoded and sent message, another aspect main control computer 110 is acquired by receiver 130 and data It rebuilds module 150 and receives the decode message.Message channel is return passage or radio channel, such as radio-frequency power amplifier (RFPA))-transmitting coil-receiving coil MR signal path.However in an embodiment of the present invention, receiver 130 can also To increase data decoding function, so as to directly acquire message.This allows main control computer 110 to transmit the information to reception Device 130 is connect and using the receiver 130 as other components of bridge with the receiver 130.Receiver 130 can also To acquire and rebuild module 150 to data by modulation initial data, message is sent to main control computer 110.

In an embodiment of the present invention, in order to realize using the method for decoded primary data download receiver 130 can Loading firmware data, using a special services sequence (download sequence might as well be known as), the download sequence can from transmitter 120 to Receiver 130 emits the small signal of specific RF.In the download sequence, the RF pulse shape in each TR period can be given Digital signal modulated, such as can loading firmware document data flow.

Fig. 2 show it is according to an embodiment of the invention can loading firmware present method.As shown in Fig. 2, the downloading side Method includes the following steps:

In step S210, main control computer 110 read can loading firmware data (such as binary data) to one caching In.

In step S220, main control computer 110 to can loading firmware data encode, generate digital radio signal arteries and veins Punching, and be applied in a download sequence.Download sequence is a service sequences.

In step S230, main control computer 110 sends to receiver 130 and downloads (begin at the beginning Downloading instruction), receiver 130 enter download state after receiving the instruction for starting downloading.

Further, it present embodiments provides through two kinds of embodiments.In one embodiment, a low speed is had existed Communication link, such as CAN bus.So, main control computer 110 can send above-mentioned open to receiver 130 by the CAN bus The instruction of beginning downloading.In another embodiment, main control computer 110 sends this to receiver 130 by a sequence and starts The instruction of downloading.Correspondingly, receiver 130 includes an instruction monitoring module (not shown), instruction monitoring module monitoring It whether include the instruction downloaded at the beginning in message decoded.If instruction decoded is the finger for effectively starting downloading It enables, then receiver 130 is able to enter instruction operational mode, i.e. download state.

In step S240, download sequence is sent to transmitter 120 by main control computer 110.

In step s 250, transmitter 120 converts digital signals into analog signal, and is modulated on a high frequency, leads to Often it is modulated in MR system frequency.

In step S260, to the transmitting of receiver 130, download sequence is corresponding is modulated by loop signal for transmitter 120 Analog radio-frequency signal afterwards.

In step S270, receiver 130 receives the corresponding signal of download sequence, converts analog signals into digital letter Number, obtain initial data.

In step S280, receiver 130 is decoded initial data, obtain can loading firmware data, and be written one Caching.

In step S290, main control computer 110 sends an instruction for stopping downloading to receiver 130, and receiver is connecing From download state enter normal condition after receiving the instruction of stopping downloading.

In step S300, a flash memory is written in data in caching by receiver 130, and load can load admittedly from the flash memory Number of packages evidence.

In MRI machine, the ADC in DAC and receiver 130 in transmitter 120 has very high resolution ratio, usually 16 bits are higher.And service sequences circuit uses coaxial cable, almost without noise.The scanning of MRI machine generallys use just Friendship amplitude modulates (QAM, Quadrature Amplitude Modulation), and the communication of the embodiment of the present invention can also be abundant Using QAM, to obtain very high transmission data rate.

For example, the symbol rate of system is 1MSPS, if bit rate can reach 10Mbps using 1024QAM.If The TR of download sequence is 5ms, and the above-mentioned receiver 130 of each TR acquires 2048 data points, then downloading rate is about 4Mbps, the significantly larger than bus of CAN bus etc.

In view of high rate and noiseless channel respectively, smaller amplitude switch process can be used, to obtain higher Data transfer rate.

Refer again to Fig. 1, another embodiment of the present invention provides it is a kind of can loading firmware download system 100.This can be loaded The download system 100 of firmware includes: 110, transmitters 120 of a main control computer and a receiver 130.

Wherein, main control computer 110 be used for can loading firmware data encode, generate digital radio signal pulse, And it is applied in a download sequence.Main control computer 110 is also used to read before the coding can loading firmware data and write-in one Caching.

Transmitter 120 is for emitting download sequence.For example, transmitter 120 converts digital signals into analog signal, and adjust It makes onto a high frequency, is usually modulated in MR system frequency, then transmitter 120 is sent out by loop signal to receiver 130 Penetrate download sequence.

Receiver 130 is decoded for receiving download sequence, and to download sequence, and acquisition can loading firmware data.Receiver 130 be also used to can loading firmware data write-in one caching, then will caching in data be written a flash memory, and from the flash memory plus Load can loading firmware data.

Main control computer 110 is also used to before emitting download sequence, and the finger downloaded at the beginning is sent to receiver 130 It enables.Main control computer 110 can also send one to receiver 130 and stop downloading after receiver 130 has received download sequence Instruction.Correspondingly, receiver 130 enters downloading mode after receiving the instruction for starting downloading, stops downloading receiving Enter normal condition after instruction.

According to a kind of embodiment, receiver 130 includes an instruction monitoring module, is decoded for monitoring receiver 130 Message whether include start downloading instruction or stop downloading instruction.

One more embodiment of the present invention provides a kind of MR imaging apparatus, which includes any one of the above Can loading firmware download system.

This application discloses can loading firmware method for down loading and download system, MR imaging apparatus.Wherein, it can load The method for down loading of firmware, comprising: to can loading firmware data encode, generate digital radio signal pulse, and be applied to one In download sequence;One transmitter emits the download sequence to a receiver;Receiver receives the download sequence, and to described Download sequence decodes, can loading firmware data described in acquisition.The application is logical using the radio-frequency transmissions and the small signal of reception of MRI machine Road, rather than common bus come download can loading firmware, thus improve can loading firmware speed of download.

The above description is only an embodiment of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. in a kind of MR imaging apparatus can loading firmware method for down loading, comprising:
To can loading firmware data encode, generate digital radio signal pulse, and being applied to one can be from transmitter to connecing Device is received to emit in the download sequence of the small signal of specific RF;
Before emitting the download sequence, Xiang Suoshu receiver sends the instruction downloaded at the beginning, and the receiver is receiving This enters download state after starting the instruction downloaded;
One transmitter emits the download sequence to a receiver by loop signal;
Receiver receives the download sequence, and decodes to the download sequence, can loading firmware data described in acquisition.
2. according to the method described in claim 1, wherein, further comprising:
After receiver receives the download sequence, Xiang Suoshu receiver sends an instruction for stopping downloading, the receiver Enter normal condition after the instruction for receiving stopping downloading.
3. according to the method described in claim 2, wherein, the instruction for starting downloading and/or described is sent by a bus Stop the instruction of downloading;Alternatively,
The instruction for starting downloading and/or the instruction for stopping downloading being sent by a sequence.
4. according to the method described in claim 1, wherein, after the decoding further include:
Receiver can one caching of loading firmware data write-in by described in;
Flash memory is written in data in caching by receiver, and can loading firmware data described in load from the flash memory.
5. according to the method described in claim 1, wherein, the download sequence is a service sequences.
6. in a kind of MR imaging apparatus can loading firmware download system, comprising:
One main control computer, for can loading firmware data encode, generate digital radio signal pulse, and be applied to one It can emit in the download sequence of the small signal of specific RF from transmitter to receiver;The main control computer is also used in transmitting institute Before stating download sequence, Xiang Suoshu receiver sends the instruction downloaded at the beginning;
One transmitter, for emitting the download sequence by loop signal;
One receiver is decoded for receiving the download sequence, and to the download sequence, can loading firmware number described in acquisition According to.
7. system according to claim 6, wherein
The main control computer is also used to after receiver has received the download sequence, and Xiang Suoshu receiver, which sends one, to be stopped The instruction of downloading;
The receiver enters downloading mode after receiving the instruction for starting downloading, is receiving the finger for stopping downloading Enter normal condition after enabling.
8. system according to claim 7, wherein the receiver includes an instruction monitoring module, described for monitoring Whether receiver message decoded includes the instruction for starting downloading or the instruction for stopping downloading.
9. system according to claim 6, wherein
The receiver be also used to by it is described can loading firmware data write-in one caching;Data write-in flash memory in caching, and from It can loading firmware data described in load in the flash memory.
10. a kind of MR imaging apparatus, including just like can be under loading firmware described in any one of claim 6 to 9 Loading system.
CN201510145880.6A 2015-03-31 2015-03-31 Can loading firmware method for down loading and download system, MR imaging apparatus CN106137196B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005215796A (en) * 2004-01-27 2005-08-11 Nec Software Kyushu Ltd Firmware update system and method for portable terminal, update module delivery medium, portable terminal and program
CN101557756A (en) * 2006-05-12 2009-10-14 因维沃公司 Method of transferring software and patient data in an MRI wireless patient monitor system
CN102591670A (en) * 2011-01-12 2012-07-18 鸿富锦精密工业(深圳)有限公司 Firmware upgrading system and method
CN103201751A (en) * 2010-09-13 2013-07-10 特里登特Rfid私人有限公司 System and method for updating parameters and firmware on RFID readers
CN104407881A (en) * 2014-10-28 2015-03-11 成都阿艾夫通信有限公司 Active RFID (radio frequency identification) firmware remote upgrading method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8275858B2 (en) * 2008-09-18 2012-09-25 Mitac Technology Corp. Method for updating firmware of radio frequency identification reader through network system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005215796A (en) * 2004-01-27 2005-08-11 Nec Software Kyushu Ltd Firmware update system and method for portable terminal, update module delivery medium, portable terminal and program
CN101557756A (en) * 2006-05-12 2009-10-14 因维沃公司 Method of transferring software and patient data in an MRI wireless patient monitor system
CN103201751A (en) * 2010-09-13 2013-07-10 特里登特Rfid私人有限公司 System and method for updating parameters and firmware on RFID readers
CN102591670A (en) * 2011-01-12 2012-07-18 鸿富锦精密工业(深圳)有限公司 Firmware upgrading system and method
CN104407881A (en) * 2014-10-28 2015-03-11 成都阿艾夫通信有限公司 Active RFID (radio frequency identification) firmware remote upgrading method

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