CN112630758A - High-frequency image sonar signal processing system - Google Patents
High-frequency image sonar signal processing system Download PDFInfo
- Publication number
- CN112630758A CN112630758A CN202011377265.5A CN202011377265A CN112630758A CN 112630758 A CN112630758 A CN 112630758A CN 202011377265 A CN202011377265 A CN 202011377265A CN 112630758 A CN112630758 A CN 112630758A
- Authority
- CN
- China
- Prior art keywords
- module
- control module
- signals
- processing
- processing control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a signal processing system, in particular to a high-frequency image sonar signal processing system, which comprises: the processing control module is used for processing signals, storing the signals and transmitting the signals to a main control module of the sonar system in real time; the system comprises a multichannel signal acquisition module, a processing control module and a data processing module, wherein the multichannel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC output module is connected with the processing control module and used for converting the digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting the compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module. The system has high signal processing speed and high signal processing quantity.
Description
Technical Field
The invention relates to a signal processing system, in particular to a high-frequency image sonar signal processing system.
Background
Sonar is one of the most important means for naval combat at present. The sonar equipment is not used in submarine warfare, anti-submarine warfare, naval mine warfare and anti-naval mine warfare. The underwater combat activity range and attack defense capability of a submarine depend greatly on the sonar with which the submarine is equipped, so the sonar is called the otoscope of underwater weapon equipment. Once the eyes of the ears are lost, the underwater weaponry almost completely loses the fighting power and faces a great survival risk. The anti-diving, anti-diving and anti-mine capabilities of surface vessels also depend primarily on the sonar being equipped. It can be said that there is no sea-making right without sonar. Sonar technology has enjoyed a very important position not only in underwater military communications, navigation and anti-submarine operations, but has also become an important means for humans to recognize, develop and utilize the ocean.
The circuit system of typical sonar includes three major blocks, front-end, conditioning and signal processing. The signal processing is an information data processing and computing center of sonar. The traditional sonar signal processing circuit has various defects of low signal processing speed, incapability of simultaneously processing multiple signals, weak signal transmission capability and the like, and cannot meet the current requirement of rapidly finishing signal processing and transmission.
Disclosure of Invention
In order to solve the above problems, the present invention provides a high-frequency image sonar signal processing system with high signal processing speed and high signal processing capacity, and the specific technical scheme is as follows:
high-frequency image sonar signal processing system includes: the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time; the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.
Further, the processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.
Further, the multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.
Further, the memory module includes a DDR3 memory chip and a regulator chip U29, and the regulator chip U29 is a TPS51200 DRCT.
The VTTDDR voltage regulator module is required to be as close to a DDR3 memory chip as possible in the PCB layout.
Further, the power module includes: a first power supply unit comprising a TPS 565201; a second power supply unit comprising an LTC3633EFE # PBF; a third power supply unit comprising a TPS74401 RG; a fourth power supply unit comprising an LMZ21701 SILT.
Further, the ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.
Compared with the prior art, the invention has the following beneficial effects:
the high-frequency image sonar signal processing system provided by the invention has the advantages of high signal processing speed and high signal processing quantity.
Drawings
FIG. 1 is a block diagram of a high-frequency image sonar signal processing system;
FIG. 2 is an analog signal acquisition input circuit diagram of a multi-channel acquisition module
FIG. 3 is a circuit diagram of the multi-channel acquisition module converting the analog signal into the digital signal and outputting the digital signal;
FIG. 4 is a circuit diagram of a memory module;
FIG. 5 is a schematic circuit diagram of the TPS565201 power chip
FIG. 6 is a schematic circuit diagram of the power chip LTC3633EFE # PBF
FIG. 7 is a schematic circuit diagram of the TPS74401RG power chip
FIG. 8 is a schematic circuit diagram of a power chip LMZ21701SILT
FIG. 9 is a schematic diagram of an Ethernet interface circuit
FIG. 10 is a circuit schematic of XC7Z045-1FFG 676I.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 10, the high-frequency image sonar signal processing system includes: the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time; the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module; the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism; the power supply module is connected with the processing control module and is used for providing a driving power supply; the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.
The processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.
The multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.
The memory module comprises a DDR3 memory chip and a voltage stabilizing chip U29, wherein the voltage stabilizing chip U29 is TPS51200 DRCT.
The VTTDDR voltage regulator module is required to be as close to a DDR3 memory chip as possible in the PCB layout.
The power module includes: a first power supply unit comprising a TPS 565201; a second power supply unit comprising an LTC3633EFE # PBF; a third power supply unit comprising a TPS74401 RG; a fourth power supply unit comprising an LMZ21701 SILT.
The ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.
As shown in FIG. 10, the control core device is an XC7Z045-1FFG676I chip of ZYNQ architecture series. The external interface comprises 64 paths of ADC data acquisition and preprocessing modules, a DAC output module, a power supply module, a Flash storage module, a DDR3 module, an Ethernet module, a serial port communication interface and the like. The functions of digital signal processing, gigabit network communication and the like can be realized in the device. The ZYNQ framework belongs to a heterogeneous series processor, the interior of the processor is divided into two parts of PS (ARM) and PL (FPGA), the functions of high-speed acquisition and processing of 64-channel analog receiving signals, local storage and real-time transmission of large-capacity data, quick reading of local storage data, 100Mbps/1.0Gbps Ethernet communication, serial port communication and the like are mainly completed, the interface interconnection of various protocols can be supported, and reliable guarantee can be provided for tasks such as real-time signal acquisition processing and high-speed real-time data transmission of systems such as sonar.
As shown in fig. 2 and fig. 3, the main function of the multi-channel signal acquisition module is to perform analog-to-digital conversion on 64 analog signals input from the outside, and the analog-to-digital conversion is mainly realized by an ADC module. The ADC chip is selected from AFE5832LPZAV of TI company. AFE5832LPZAV is a highly integrated Analog Front End (AFE) solution, specifically designed for chips requiring high performance, low power consumption, and small size portable ultrasound systems.
The AFE5832LPZAV component is internally formed by a multi-chip Module (MCM) having two parts: 1 is a Voltage Controlled gain Amplifier (VCA) section and 1 ADC section. The VCA chip has 32 channels to interface with the 16 channels of the ADC chip. Each ADC channel alternately converts odd and even VCA channels.
And 4 AFE5832LPZAV chips are adopted to complete the acquisition and the preprocessing of 64 paths of analog signals. 64 analog signals are input into an AFE5832LPZAV in a single-ended signal form, and each AFE5832LPZAV chip uses 16 odd channels to complete data acquisition. The acquisition rate of the AFE5832LPZAV chip is 5MSPS, and the sampling precision is 12 bits. Then the AFE5832LPZAV chip completes analog-to-digital conversion, and finally the analog-to-digital conversion is output in the form of digital signals.
As shown in fig. 5, TPS565201 is a switching power supply chip provided by TI corporation, and its input power supply is dc +12V, and a dc output power supply of +5.4V is obtained by configuring a feedback resistor. The +5.4V is converted to +5.4V _ Analog through the filter. Both of which are powered by external circuit boards.
As shown in fig. 6, LTC3633F is a switching power supply chip provided by LINEAR corporation. The input power supply is DC +5.4V, and the DC output power supplies of +3.3V, +1.8V, +1.5V, +1.2V are respectively obtained by configuring feedback resistors. The LTC3633EFE # PBF outputs a specific schematic diagram of +3.3V and +1.5V, and the schematic diagram of +1.8V and +1.2V is basically consistent with that of FIG. 5 except that the configuration resistance is inconsistent.
As shown in FIG. 7, TPS74401RG is a low dropout linear regulator (LDO) designed and produced by TI corporation. The programmable soft start mode can reduce the surge current of the capacitor when the device is started, thereby reducing the stress of an input power supply to the maximum extent. The input voltage is +5.4V, the output voltage is +1V, and the ZYNQ master control chip is powered.
As shown in fig. 8, LMZ21701SILT is a dc buck chip supplied by TI corporation. The input power supply is direct current +12V, and a direct current output power supply of +5V is obtained by configuring a feedback resistor. The +5V is mainly responsible for supplying power to the DA conversion chip AD5542A _ MO-153-AB and other chips.
As shown in fig. 9, ethernet is primarily used to facilitate debugging and program software upgrades of the entire system. In the process of verifying the beamforming algorithm, 64 paths of data after analog conversion are transmitted to DDR3 through Ethernet, then the data in DDR3 is read through a ZYNQ framework processor to be beamformed and subjected to relevant algorithm processing, finally the processed result is transmitted to the outside through the Ethernet, and in addition, the remote updating of functions in the ZYNQ framework processor can also be realized through an Ethernet interface.
The working principle is as follows:
the multi-channel signal acquisition module transmits the acquired 64-channel analog signals to the signal processing circuit, and the acquired analog signals are converted into digital signals through the ADC module and then transmitted to the ZYNQ framework processor. The ZYNQ framework processor processes the digital signals through an algorithm loaded by the ZYNQ framework processor, and finally, the processed data are stored in a local SD card on one hand, and are transmitted to a main control unit of a sonar system in real time through a gigabit Ethernet interface on the other hand, so that the signal processing of the sonar system is completed.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (6)
1. High frequency image sonar signal processing system, its characterized in that includes:
the system comprises a processing control module, a main control module and a sonar system, wherein the processing control module is used for processing signals, storing the signals and transmitting the signals to the main control module of the sonar system in real time;
the system comprises a multi-channel signal acquisition module, a processing control module and a data processing module, wherein the multi-channel signal acquisition module is used for acquiring analog signals of sonar, converting the analog signals into digital signals and sending the digital signals to the processing control module;
the DAC module is connected with the processing control module and used for converting a digital signal into an analog current control actuating mechanism;
the power supply module is connected with the processing control module and is used for providing a driving power supply;
the compass interface is connected with the processing control module and is used for connecting a compass sensor; and the memory module, the storage module, the SD card module, the Ethernet interface and the serial port communication interface are all connected with the processing control module.
2. A high-frequency image sonar signal processing system according to claim 1,
the processing control module comprises a single chip microcomputer U1, and the single chip microcomputer U1 is an XC7Z045-1FFG676I chip.
3. A high-frequency image sonar signal processing system according to claim 1,
the multi-channel signal acquisition module comprises not less than one acquisition converter U1, and the acquisition converter is AFE5832 LPZAV.
4. A high-frequency image sonar signal processing system according to claim 1,
the memory module comprises a DDR3 memory chip and a voltage stabilizing chip U29, wherein the voltage stabilizing chip U29 is a TPS51200 DRCT.
5. A high-frequency image sonar signal processing system according to claim 1,
the power module includes:
a first power supply unit comprising a TPS 565201;
a second power supply unit comprising an LTC3633EFE # PBF;
a third power supply unit comprising a TPS74401 RG;
a fourth power supply unit comprising an LMZ21701 SILT.
6. A high-frequency image sonar signal processing system according to claim 1,
the ethernet interface includes a chip U206, and the chip U206 is 88E 1116R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377265.5A CN112630758A (en) | 2020-11-30 | 2020-11-30 | High-frequency image sonar signal processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377265.5A CN112630758A (en) | 2020-11-30 | 2020-11-30 | High-frequency image sonar signal processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112630758A true CN112630758A (en) | 2021-04-09 |
Family
ID=75306973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011377265.5A Pending CN112630758A (en) | 2020-11-30 | 2020-11-30 | High-frequency image sonar signal processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112630758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114698427A (en) * | 2022-02-10 | 2022-07-05 | 刘宏伟 | Wheat seed multi-beam high-frequency sonar instrument system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870429A (en) * | 2014-04-03 | 2014-06-18 | 清华大学 | High-speed-signal processing board based on embedded GPU |
| CN105413999A (en) * | 2015-12-28 | 2016-03-23 | 杭州电子科技大学 | Ultrasonic power supply device with array transducer |
| CN106772394A (en) * | 2017-01-13 | 2017-05-31 | 苏州桑泰海洋仪器研发有限责任公司 | The device of sonar system signal acquisition transfer control method and application the method |
| CN206531959U (en) * | 2017-01-13 | 2017-09-29 | 苏州桑泰海洋仪器研发有限责任公司 | Sonar system signal acquisition transmission control unit |
| CN206832751U (en) * | 2017-05-17 | 2018-01-02 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of multi-channel high frequency ultrasound data receive-transmit system based on network interface |
| CN110687202A (en) * | 2019-10-25 | 2020-01-14 | 广西电网有限责任公司电力科学研究院 | Ultrasonic guided wave instrument for nondestructive testing of energy storage spring of circuit breaker |
| CN110737025A (en) * | 2019-10-28 | 2020-01-31 | 海鹰企业集团有限责任公司 | submerged buoy underwater acoustic treatment device and system |
| CN210348255U (en) * | 2019-10-31 | 2020-04-17 | 海鹰企业集团有限责任公司 | Signal source control panel system of dual-core heterogeneous architecture |
| CN111208522A (en) * | 2020-01-15 | 2020-05-29 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Shore-based high-frequency multi-beam image sonar system |
| CN111356408A (en) * | 2017-11-08 | 2020-06-30 | 富士胶片索诺声公司 | Ultrasound system with high frequency details |
| CN211375603U (en) * | 2019-12-26 | 2020-08-28 | 中国电子科技集团公司第五十八研究所 | XC7Z 045-based high-performance general signal processing SiP circuit technical device |
-
2020
- 2020-11-30 CN CN202011377265.5A patent/CN112630758A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870429A (en) * | 2014-04-03 | 2014-06-18 | 清华大学 | High-speed-signal processing board based on embedded GPU |
| CN105413999A (en) * | 2015-12-28 | 2016-03-23 | 杭州电子科技大学 | Ultrasonic power supply device with array transducer |
| CN106772394A (en) * | 2017-01-13 | 2017-05-31 | 苏州桑泰海洋仪器研发有限责任公司 | The device of sonar system signal acquisition transfer control method and application the method |
| CN206531959U (en) * | 2017-01-13 | 2017-09-29 | 苏州桑泰海洋仪器研发有限责任公司 | Sonar system signal acquisition transmission control unit |
| CN206832751U (en) * | 2017-05-17 | 2018-01-02 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | A kind of multi-channel high frequency ultrasound data receive-transmit system based on network interface |
| CN111356408A (en) * | 2017-11-08 | 2020-06-30 | 富士胶片索诺声公司 | Ultrasound system with high frequency details |
| CN110687202A (en) * | 2019-10-25 | 2020-01-14 | 广西电网有限责任公司电力科学研究院 | Ultrasonic guided wave instrument for nondestructive testing of energy storage spring of circuit breaker |
| CN110737025A (en) * | 2019-10-28 | 2020-01-31 | 海鹰企业集团有限责任公司 | submerged buoy underwater acoustic treatment device and system |
| CN210348255U (en) * | 2019-10-31 | 2020-04-17 | 海鹰企业集团有限责任公司 | Signal source control panel system of dual-core heterogeneous architecture |
| CN211375603U (en) * | 2019-12-26 | 2020-08-28 | 中国电子科技集团公司第五十八研究所 | XC7Z 045-based high-performance general signal processing SiP circuit technical device |
| CN111208522A (en) * | 2020-01-15 | 2020-05-29 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Shore-based high-frequency multi-beam image sonar system |
Non-Patent Citations (1)
| Title |
|---|
| 邹泽伟: ""高频成像声呐原理样机的设计与实现"", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》, pages 12 - 48 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114698427A (en) * | 2022-02-10 | 2022-07-05 | 刘宏伟 | Wheat seed multi-beam high-frequency sonar instrument system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202748785U (en) | Double-channel 1553B and RS422 converting card | |
| CN112630758A (en) | High-frequency image sonar signal processing system | |
| CN104306024A (en) | Ultrasonic device | |
| CN105159175A (en) | Line concentration device of unmanned plane | |
| CN113395102B (en) | Self-adaptive satellite communication equipment and link intelligent selection method | |
| CN110737025A (en) | submerged buoy underwater acoustic treatment device and system | |
| CN103336277A (en) | Minitype frequency modulation continuous wave real-time SAR (synthetic aperture radar) imaging system | |
| CN105681770A (en) | Multiple DSP sonar signal parallel processing system | |
| CN113391584A (en) | CAN bus-based extensible communication system | |
| CN217982172U (en) | High-integration comprehensive control module | |
| CN219871799U (en) | Communication positioning system for recovering underwater equipment | |
| US8581528B2 (en) | Arrangement and method for controlling frequency converter modules | |
| CN211880165U (en) | Integrated controller for small-sized cabled underwater robot | |
| CN113467506B (en) | Domestic flight controller based on core board design and design method | |
| CN203732717U (en) | Sea wave clutter suppression unit for miniature marine navigation radar | |
| CN212229448U (en) | Main control console of naval vessel command control system | |
| CN107786852A (en) | A kind of submersible high-speed high capacity data transfer and storage system | |
| CN114397007A (en) | Underwater multi-channel distortion-free data acquisition and storage system under high sampling rate | |
| CN211124034U (en) | Multi-path acquisition card and server with same | |
| CN106647472B (en) | A kind of antenna digital control card | |
| CN109889748B (en) | Reconfigurable airborne video recorder | |
| CN110532689A (en) | A kind of miniature Φ 36mm howitzer central processing circuit system | |
| CN110727218A (en) | Launching control equipment and method suitable for launching double-launched missiles | |
| US10903589B2 (en) | Radio frequency optical acoustic communication modem | |
| CN205490958U (en) | Many DSP sonar signal parallel process system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |