CN110596642A - Signal receiving mechanism, traceable head-mounted display device and positioning system - Google Patents
Signal receiving mechanism, traceable head-mounted display device and positioning system Download PDFInfo
- Publication number
- CN110596642A CN110596642A CN201910996107.9A CN201910996107A CN110596642A CN 110596642 A CN110596642 A CN 110596642A CN 201910996107 A CN201910996107 A CN 201910996107A CN 110596642 A CN110596642 A CN 110596642A
- Authority
- CN
- China
- Prior art keywords
- signal
- signal receiving
- hole
- circuit board
- display device
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 80
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 230000005693 optoelectronics Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000004886 head movement Effects 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 238000001444 catalytic combustion detection Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000009365 direct transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
-
- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
- G01S5/26—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/012—Head tracking input arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Human Computer Interaction (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention belongs to the technical field of virtual reality, and discloses a signal receiving mechanism, a traceable head-mounted display device and a positioning system. The signal receiving mechanism includes: the shell is provided with at least one signal receiving position; the receiving component is arranged in the shell and corresponds to the position of a signal receiving position; the signal analysis circuit board is arranged in the shell, is electrically connected with the receiving component, and obtains the spatial position information of the signal receiving mechanism according to the signal received by the receiving component; the signal analysis circuit board is provided with an interface used for transmitting the spatial position information to the terminal. The signal receiving mechanism can obtain the motion data with six degrees of freedom by analyzing and determining the spatial position of the signal receiving mechanism, thereby improving the user experience.
Description
Technical Field
The invention relates to the technical field of virtual reality, in particular to a signal receiving mechanism, a traceable head-mounted display device and a positioning system.
Background
Virtual Reality (VR) is a virtual environment generated by modern high-tech means with computer technology as the core, and a user obtains the same feeling as the real world through vision, hearing, touch and the like by means of special input/output devices. The virtual reality technology is a high-level man-machine interaction technology which comprehensively applies computer graphics, man-machine interface technology, sensor technology, artificial intelligence and the like, makes a vivid artificial simulation environment and can effectively simulate various perceptions of a human in a natural environment.
At present, most of head-mounted display devices of VR equipment can only watch videos and do not have an interactive function, so that a user of the head-mounted display device cannot track motions. Because the corresponding rotation of the picture can be only carried out according to the rotation of the head, the spatial three-coordinate moving data can not be obtained, and the effective tracking of the head motion track can not be realized, thereby reducing the user experience.
Disclosure of Invention
The invention aims to provide a signal receiving mechanism, a traceable head-mounted display device and a positioning system, which are used for accurately tracing the motion track of a head, realizing the function of human-computer interaction and improving the experience of a user.
In order to achieve the purpose, the invention adopts the following technical scheme:
a signal receiving mechanism comprising: a housing on which at least one signal receiving site is disposed; at least one receiving component, the receiving component is arranged in the shell and corresponds to the position of the signal receiving position; the signal analysis circuit board is arranged in the shell, is electrically connected with the receiving assembly, and obtains the spatial position information of the signal receiving mechanism according to the signal received by the receiving assembly; and an interface is arranged on the signal analysis circuit board and used for transmitting the spatial position information to a terminal.
Preferably, the number of the signal receiving parts is three, the signal receiving parts comprise a first through hole, a second through hole and a third through hole, the number of the receiving assemblies is three, the receiving assemblies comprise a first receiving assembly, a second receiving assembly and a third receiving assembly, the first receiving assembly is arranged opposite to the first through hole, the second receiving assembly is arranged opposite to the second through hole, and the third receiving assembly is arranged opposite to the third through hole.
Preferably, the hole diameters of the first through hole, the second through hole and the third through hole are larger than 1.5mm, and the hole depth is smaller than 1.8 mm.
Preferably, the housing is an arc-shaped structure, a connection line between the second through hole and the center of the arc-shaped structure coincides with the normal direction of the arc-shaped structure, a connection line between the first through hole and the center of the arc-shaped structure forms a first direction angle a with the normal direction, a connection line between the second through hole and the center of the arc-shaped structure forms a second direction angle B with the normal direction, and the first direction angle a is: a is more than or equal to 15 degrees and less than or equal to 45 degrees, and the range of the first direction angle B is more than or equal to 15 degrees and less than or equal to 45 degrees.
Preferably, the first receiving assembly comprises a first bracket and a first flexible circuit board, and the first flexible circuit board is mounted in the shell through the first bracket;
the first flexible circuit board comprises a first circuit board body, and a first ultrasonic receiver and two first photoelectric receivers which are arranged on the first circuit board body, wherein the first ultrasonic receiver is positioned between the two first photoelectric receivers;
the first support comprises a first support body and two first photoelectric mounting platforms arranged on the first support body, each first photoelectric mounting platform is used for mounting one first photoelectric receiver, a first ultrasonic mounting hole is formed in the first support body, and the first ultrasonic mounting hole is used for mounting the first ultrasonic receiver.
Preferably, the first photoelectric receiver is a silicon photocell, and the first ultrasonic receiver is a MEMS ultrasonic receiver.
Preferably, the first photovoltaic installation platform is arranged obliquely to the horizontal direction, a third direction angle C is formed between the length direction of the first photovoltaic installation platform and the horizontal direction, and the range of the second direction angle C is as follows: c is more than or equal to 15 degrees and less than or equal to 45 degrees.
Preferably, the first photovoltaic installation platform near the outer side of the housing is inclined upwards at the third direction angle C, and the first photovoltaic installation platform near the middle of the housing is inclined downwards at the third direction angle C.
Preferably, the first receiving component and the third receiving component are respectively symmetrically arranged in the housing with respect to the discovery direction.
In order to achieve the above object, the present invention further provides a traceable head-mounted display device, which includes a display device body and the signal receiving mechanism, wherein the signal receiving mechanism is connected to the display device body through the interface and transmits the spatial position information to the display device body.
In order to achieve the above object, the present invention further provides a positioning system, which includes a signal transmitting mechanism and the traceable head-mounted display device, wherein the signal transmitting mechanism is configured to transmit a signal, the traceable head-mounted display device receives the signal through the signal receiving mechanism, and the signal receiving mechanism is connected to the display device body through the interface and transmits the spatial position information to the display device body.
The invention has the beneficial effects that:
the signal receiving mechanism provided by the invention is characterized in that at least one signal receiving position and at least one receiving component are arranged on the shell, and the receiving component is arranged in the shell and corresponds to the position of the signal receiving position, so that signals from the front within the range of 270 degrees can be received. Meanwhile, the signal analysis circuit board can analyze signals and determine spatial position information of the signal receiving mechanism according to the signals received by the receiving assembly, the interface can install the signal receiving mechanism on the display device body traceable head-mounted display device, and the spatial position information obtained by analyzing and processing the signal receiving mechanism is transmitted to the display device body traceable head-mounted display device to display corresponding pictures, so that the head movement track is accurately traced, and the human-computer interaction function is realized.
The signal receiving mechanism is used for receiving the photoelectric signal and the ultrasonic signal, transmitting the spatial position information obtained after signal calculation to the display device body, and acquiring the spatial position of the display device body according to the three-dimensional coordinate information obtained by calculation of the spatial position information or according to the three-dimensional coordinate information obtained by direct transmission. The signal receiving mechanism is arranged on the display device body, so that when the display device body is worn on the head of a user, the display device body can be assisted to obtain six-degree-of-freedom motion data, and the motion track of the head of the user can be effectively tracked.
According to the positioning system provided by the invention, the signal transmitting mechanism is arranged for transmitting signals, the traceable head-mounted display device receives the ultrasonic signals and the two laser plane signals transmitted from the signal transmitting mechanism through the signal receiving mechanism, and the spatial position of the traceable head-mounted display device is calculated according to the time for receiving the ultrasonic signals and the two laser plane signals. By adopting the mode, the spatial position of the traceable head-mounted display device can be obtained, so that the effective tracing of the head movement track is realized, and the user experience is improved.
Drawings
FIG. 1 is a schematic diagram of a trackable head-mounted display device according to the present invention;
FIG. 2 is an exploded view of the signal receiving mechanism of the present invention;
fig. 3 is a schematic structural view of a rear housing in the signal receiving mechanism of the present invention;
fig. 4 is a schematic structural view of a front case in the signal receiving mechanism of the present invention;
FIG. 5 is a schematic diagram showing the positional relationship among a first through hole, a second through hole and a third through hole on a front housing of the signal receiving mechanism according to the present invention;
FIG. 6 is a schematic structural diagram of a first flexible circuit board in the signal receiving mechanism of the present invention;
fig. 7 is a schematic structural view of a first bracket in the signal receiving mechanism of the present invention;
fig. 8 is a schematic view showing the assembly of the first flexible circuit board and the first holder in the signal receiving mechanism of the present invention;
fig. 9 is a schematic structural view of a second flexible circuit board in the signal receiving mechanism of the present invention;
fig. 10 is a schematic structural view of a second bracket in the signal receiving mechanism of the present invention;
fig. 11 is an assembly view of a second flexible circuit board and a second holder in the signal receiving mechanism of the present invention;
fig. 12 is a schematic structural view of a third flexible circuit board in the signal receiving mechanism of the present invention.
In the figure:
10. a signal receiving mechanism; 20. a display device body; 201. a socket;
1. a housing; 2. a first receiving component; 3. a second receiving component; 4. a third receiving component; 5. a signal analysis circuit board; 6. pressing a key;
11. a front housing; 12. a rear housing;
111. a first through hole; 112. a second through hole; 113. a third through hole;
21. a first bracket; 22. a first flexible circuit board;
211. a first bracket body; 212. a first ultrasonic mounting hole; 213. a first photovoltaic mount;
221. a first circuit board body; 222. a first ultrasonic receiver; 223. a first photoelectric receiver;
31. a second bracket; 32. a second flexible circuit board;
311. a second stent body; 312. a second ultrasonic mounting hole; 313. a second photovoltaic mount;
321. a second circuit board body; 322. a second ultrasonic receiver; 323. a second photoelectric receiver;
41. a third flexible circuit board; 411. a third circuit board body; 412. a third ultrasonic receiver; 413. a third photoelectric receiver;
51. an interface.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
To solve the problem that the prior art cannot effectively track the head movement track, the embodiment provides a positioning system, which includes a signal transmitting mechanism and a traceable head-mounted display device, where the signal transmitting mechanism is used to transmit a signal, specifically, the signal transmitting mechanism includes an ultrasonic transmitter and a laser signal transmitter, the ultrasonic transmitter sends an ultrasonic signal to a space, and the laser signal transmitter sends two rotating laser plane signals to the space. The traceable head-mounted display device receives the optical signal and the ultrasonic signal through the signal receiving mechanism.
According to the positioning system provided by the embodiment, the signal transmitting mechanism is arranged for transmitting signals, the traceable head-mounted display device receives the ultrasonic signal and the two laser plane signals transmitted from the signal transmitting mechanism through the signal receiving mechanism, and the spatial position of the traceable head-mounted display device is calculated according to the time of receiving the ultrasonic signal and the two laser plane signals. It is understood that the calculation process may be performed on the trackable head-mounted display device, or may be performed on a computing terminal external to the trackable head-mounted display device, such as a PC. By adopting the mode, the spatial position of the traceable head-mounted display device can be obtained, so that the effective tracing of the head movement track is realized, and the user experience is improved.
The embodiment further provides a traceable head-mounted display device, as shown in fig. 1, the traceable head-mounted display device includes a display device body 20 and a signal receiving mechanism 10, the signal receiving mechanism 10 is used for receiving positioning signals (in the embodiment, photoelectric signals and ultrasonic signals), the display device body 20 includes a socket 201 as shown in fig. 1, and the signal receiving mechanism 10 is disposed in the middle of the display device body 20 so as to better receive signals. The signal receiving mechanism 10 is connected to the socket 201 of the display device body 20 through the interface 51, and is connected to the display device body 20 in a communication manner, so as to transmit the spatial position information obtained by receiving the signal by the signal receiving mechanism 10 to the display device body 20.
In the traceable head-mounted display device provided by this embodiment, the signal receiving mechanism 10 is configured to receive the photoelectric signal and the ultrasonic signal, and transmit the spatial position information obtained by the signal calculation to the display device body 20, and the display device body 20 obtains the spatial position of the display device body 20 according to the three-dimensional coordinate information obtained by the calculation of the spatial position information or according to the three-dimensional coordinate information obtained by direct transmission. By mounting the signal receiving mechanism 10 on the display device body 20, when the display device body 20 is worn on the head of a user, the display device body 20 can be assisted to obtain six-degree-of-freedom motion data, thereby realizing effective tracking of the motion trajectory of the head of the user.
As shown in fig. 2, the signal receiving mechanism 10 provided in this embodiment includes a housing 1 and at least one receiving component disposed inside the housing 1, and in this embodiment, the signal receiving mechanism 10 includes three receiving components: the first receiving assembly 2, the second receiving assembly 3 and the third receiving assembly 4 further comprise a signal analysis circuit board 5 and a key 6 which are arranged inside the shell 1, and the shell 1 plays a role in containing and integrally supporting. At least one signal receiving part is arranged on the housing 1, and in this embodiment, three signal receiving parts are included, corresponding to the first through hole 111, the second through hole 112, and the third through hole 113 shown in fig. 2, the first through hole 111, the second through hole 112, and the third through hole 113 are all circular hole structures, and the first through hole 111 and the third through hole 113 are arranged on two sides of the second through hole 112.
It will be appreciated that the circular aperture structure may also be a structure of other shapes, such as a square aperture structure, a diamond aperture structure, such as a non-aperture structure, e.g. an ultrasound permeable structure, etc. It is understood that the first through hole 111 and the third through hole 113 may be symmetrically disposed on both sides of the second through hole 112, or asymmetrically disposed. In order to better receive the ultrasonic signal, the hole diameters of the first through hole 111, the second through hole 112 and the third through hole 113 should be larger than 1.5mm, preferably 2.5mm, through the design of simulation; the hole depth should be less than 1.8mm, preferably 0.8 mm.
The receiving component is arranged at a position corresponding to the signal receiving position, and in the embodiment, three signal receiving positions are provided with three receiving components: the first receiving assembly 2, the second receiving assembly 3 and the third receiving assembly 4 are all used for receiving signals and correspond to the position of each signal receiving position, in the implementation, the first receiving assembly 2 is arranged opposite to the first through hole 111, the second receiving assembly 3 is arranged opposite to the second through hole 112, and the third receiving assembly 4 is arranged opposite to the third through hole 113. The signal analyzing circuit board 5 is electrically connected to the first receiving assembly 2, the second receiving assembly 3, and the third receiving assembly 4, respectively, and the signal analyzing circuit board 5 is configured to analyze and determine spatial position information of the signal receiving mechanism 10 according to signals received by the first receiving assembly 2, the second receiving assembly 3, and the third receiving assembly 4. The key 6 is disposed on the housing 1, and the key 6 is electrically connected to the signal analysis circuit board 5 for controlling the signal receiving mechanism 10 to open and close. The signal analysis circuit board 5 further includes an interface 51, where the interface 51 is configured to transmit the analyzed spatial position information to a terminal, the terminal may be a display device body, a smart phone, a PAD, a prop (e.g., a toy gun), and the like, and in this embodiment, the terminal is the display device body.
In the signal receiving mechanism 10 provided in this embodiment, the first receiving component 2 is disposed opposite to the first through hole 111, so that the first receiving component 2 can receive the signal passing through the first through hole 111, the second receiving component 3 is disposed opposite to the second through hole 112, so that the second receiving component 3 can receive the signal passing through the second through hole 112, the third receiving component 4 is disposed opposite to the third through hole 113, so that the third receiving component 4 can receive the signal passing through the third through hole 113, and thus the optical signal and the ultrasonic signal from the front within 270 ° can be received. Meanwhile, the signal analyzing circuit board 5 may analyze the signal and determine spatial position information of the signal receiving mechanism 10 according to the signal received by the first receiving assembly 2, the second receiving assembly 3, and the third receiving assembly 4, where the spatial position information may be a time when the information is received or a spatial three-dimensional coordinate calculated according to the time when the information is received, so as to complete accurate tracking of the head movement trajectory and achieve a human-computer interaction function.
Further, an interface 51 is disposed on the signal analysis circuit board 5, the interface 51 may be a type-C interface, and the interface 51 is plugged into the display device body 20. The display device body 20 is provided with a socket 201 corresponding to the interface 51, the signal receiving mechanism 10 can be mounted on the display device body 20 by using the socket 201 and the interface 51, and the spatial position information analyzed and processed by the signal receiving mechanism 10 is transmitted to the display device body 20 to display a corresponding picture. When mounted, it is preferable that the signal receiving means 10 correspond to the middle position of the display device body 20 for better receiving signals.
Further, the housing 1 has an arc-shaped structure, as shown in fig. 2, the housing 1 includes a front housing 11 and a rear housing 12 connected to each other, the rear housing 12 can enclose the front housing 11, and after the rear housing 12 and the front housing 11 are fastened, the front housing 11 and the rear housing 12 are welded by an ultrasonic process, so that the housing 1 forms an integral structure. As shown in fig. 2-3, the rear housing 12 may be formed from a generally black PC material, such as polycarbonate. As shown in fig. 4, a front shell 11 is disposed in front of the rear shell 12, the front shell 11 is made of a PC transparent material (e.g., polycarbonate) or PMMA (e.g., polymethyl methacrylate), the front shell 11 is opaque to visible light below 600 nm, and the front shell 11 has a light transmittance of more than 70%, preferably more than 85%, for visible light above 600 nm, so that an optical signal can smoothly pass through the front shell 11, and good light transmittance can be ensured. In this embodiment, the front housing 11 is made of a transparent material as a whole, but in other embodiments, the front housing may be made of other materials, and the transparent material is used only at the signal receiving position.
As shown in fig. 4, the front shell 11 is an arc-shaped structure, and three signal receiving places are provided on the front shell 11: the first through hole 111, the second through hole 112 and the third through hole 113, the first through hole 111, the second through hole 112 and the third through hole 113 can receive ultrasonic signals within a range of 270 degrees ahead. In order to ensure the comprehensiveness of receiving ultrasonic signals, the positions of three signal receiving positions are designed, specifically as shown in fig. 5, a connecting line between the second through hole 112 and the center of the arc-shaped structure coincides with the normal direction of the arc-shaped structure, a connecting line between the first through hole 111 and the center of the arc-shaped structure forms a first direction angle a with the normal direction, a connecting line between the second through hole 112 and the center of the arc-shaped structure forms a second direction angle B with the normal direction, and the ranges of the first direction angle a and the second direction angle B are as follows: a is more than or equal to 15 degrees and less than or equal to 45 degrees, preferably 30 degrees. The first direction angle a and the second direction angle B may be the same or different.
By adopting the mode, the range of receiving ultrasonic signals is increased, the data of the head movement track is enriched, and the accurate tracking of the head movement track is realized. In spatial positioning, the second through hole 112 is aligned with the position of signal transmission to better receive the signal. In the present embodiment, three signal receiving sites are included, it is understood that, in order to enhance the strength and accuracy of signal receiving, other numbers of signal receiving sites may be included, for example, 5 signal receiving sites, and the other numbers of signal receiving sites may be arranged along the arc structure of the housing, but through research, three signal receiving sites may not only ensure the comprehensiveness of signal receiving, but also save the cost increase caused by multiple signal receiving sites, which is an optimal arrangement manner.
In order to receive signals at the signal receiving sites, a receiving assembly is provided corresponding to each signal receiving site, for example, in order to receive signals passing through the first through hole 111, as shown in fig. 6 to 8, the first receiving assembly 2 includes a first bracket 21 and a first flexible circuit board 22, and the first flexible circuit board 22 is mounted in the housing 1 through the first bracket 21. Optionally, a first clamping groove (not shown) is disposed on one side of the front shell 11 of the housing 1, and a first clamping block is disposed on one side of the first bracket 21 close to the front shell 11, and the first clamping block is clamped in the first clamping groove, so that the first mounting bracket and the front shell 11 are stably connected.
Further, as shown in fig. 6, the first flexible circuit board 22 includes a first circuit board body 221 and signal receivers disposed on the first circuit board body 221, and in this embodiment, the first flexible circuit board includes a first ultrasonic receiver 222 and two first photoelectric receivers 223, the first ultrasonic receiver 222 is located between the two first photoelectric receivers 223, the first photoelectric receivers 223 may be photodiodes, silicon photocells, charge coupled devices, CCDs, and the like, and preferably, the first photoelectric receivers 223 are silicon photocells. The first photoelectric receiver 223 is used for receiving the photoelectric signal, and the first ultrasonic receiver 222 is used for receiving the ultrasonic signal. The first ultrasonic receiver 222 is a general ultrasonic sensor or a MEMS ultrasonic transducer, etc. To reduce the footprint and weight, MEMS ultrasonic transducers are preferred.
Further, as shown in fig. 7, the first bracket 21 includes a first bracket body 211 and two first photoelectric mounting platforms 213 disposed on the first bracket body 211, a first ultrasonic mounting hole 212 is disposed on the first bracket body 211, and the first ultrasonic mounting hole 212 is used for mounting a first ultrasonic receiver 222 and is disposed opposite to the first through hole 111. Two first photoelectric mounting platforms 213 are respectively arranged at two sides of the first ultrasonic mounting hole 212, and each first photoelectric mounting platform 213 is used for mounting one first photoelectric receiver 223. By arranging the first photoelectric mounting table 213 and the first ultrasonic mounting hole 212, the first ultrasonic receiver 222 and the two first photoelectric receivers 223 of the first flexible circuit board 22 are fixed, and the connection stability is ensured.
It is to be understood that, as shown in fig. 8, when the first flexible circuit board 22 is mounted on the first bracket 21, the first photoelectric receiver 223 of the first flexible circuit board 22 is partially bent and fixed on the first photoelectric mounting stage 213 of the first bracket 21, and then the first ultrasonic receiver 222 is partially bent to correspond to the first ultrasonic mounting hole 212.
Since the front housing 11 has an arc-shaped structure, the first photoelectric mounting stage 213 is inclined from the horizontal direction in order to further expand the range of receiving signals. Specifically, a third direction angle C is formed between the first photoelectric mounting platform 213 and the horizontal direction, and the range of the third direction angle C is as follows: 15 DEG-C.ltoreq.45 DEG, wherein the third direction angle C is preferably 30 deg. Specifically, one first photoelectric mounting platform 213 on the left side of the first support 21 is inclined upwards by 30 °, and one first photoelectric mounting platform 213 on the right side is inclined downwards by 30 °, since the first support 21 is installed on the left side of the housing, that is, the photoelectric mounting platform near the outer side of the housing is inclined upwards by the third direction angle C, and the photoelectric mounting platform near the middle of the housing is inclined downwards by the third direction angle C, the inclination manner and the inclination angle are designed to receive the photoelectric signal to the maximum extent.
Likewise, in order to realize reception of a signal passing through the third through hole 113, as shown in fig. 9 to 11, the second receiving module 3 includes a second bracket 31 and a second flexible circuit board 32, and the second flexible circuit board 32 is mounted in the housing 1 through the second bracket 31. Optionally, a second clamping groove (not shown) is disposed on one side of the front shell 11 of the housing 1, and a second clamping block is disposed on one side of the second bracket 31 close to the front shell 11, so that the second clamping block is clamped in the second clamping groove, thereby realizing stable connection between the second mounting bracket and the front shell 11.
Further, as shown in fig. 9, the second flexible circuit board 32 includes a second circuit board body 321, and a second ultrasonic receiver 322 and two second photoelectric receivers 323 both disposed on the second circuit board body 321, wherein the second ultrasonic receiver 322 is located between the two second photoelectric receivers 323, and the second photoelectric receivers 323 may be photodiodes, silicon photocells, charge-coupled devices, CCDs, and the like, preferably silicon photocells. The second photoelectric receiver 323 is for receiving the photoelectric signal, and the second ultrasonic receiver 322 is for receiving the ultrasonic signal. The second ultrasonic receiver 322 is a general ultrasonic sensor or a MEMS ultrasonic transducer, and preferably a MEMS ultrasonic transducer in order to reduce the occupied space and weight.
Further, as shown in fig. 10, the second bracket 31 includes a second bracket body 311 and two second photoelectric mounting tables 313 arranged on the second bracket body 311, a second ultrasonic mounting hole 312 is formed on the second bracket body 311, and the second ultrasonic mounting hole 312 is used for mounting a second ultrasonic receiver 322 and is arranged opposite to the second through hole 112. Two second photoelectric mounting platforms 313 are respectively arranged at two sides of the second ultrasonic mounting hole 312, and each second photoelectric mounting platform 313 is used for mounting one second photoelectric receiver 323. By arranging the second photoelectric mounting table 313 and the second ultrasonic mounting hole 312, the second ultrasonic receiver 322 and the two second photoelectric receivers 323 of the second flexible circuit board 32 are fixed, and the connection stability is ensured.
It is understood that, as shown in fig. 11, when the second flexible circuit board 32 is mounted on the second support 31, the second photoelectric receiver 323 of the second flexible circuit board 32 is partially bent and fixed on the second photoelectric mounting table 313 of the second support 31, and then the second ultrasonic receiver 322 is partially bent to correspond to the second ultrasonic mounting hole 312.
In order to further expand the range of the received signal, the second opto-electronic mounting table 313 is disposed to be inclined from the horizontal direction. Specifically, a third direction angle C is formed between the longitudinal direction and the horizontal direction of the second photoelectric mounting table 313, and the range of the third direction angle C is as follows: 15 DEG-C.ltoreq.45 DEG, wherein the third direction angle C is preferably 30 deg. Specifically, one second photoelectric mounting table 313 on the left side is inclined downwards by 30 degrees, one second photoelectric mounting table 313 on the right side is inclined upwards by 30 degrees, and since the second bracket 31 is mounted on the right side of the housing, namely, the photoelectric mounting table close to the outer side of the housing is inclined upwards by a third direction angle, and the photoelectric mounting table close to the middle of the housing is inclined downwards by a third direction angle, the inclination mode and the inclination angle are designed to receive photoelectric signals to the maximum extent.
In order to receive the signal passing through the second through hole 112, as shown in fig. 12, the third receiving assembly 4 includes a third flexible circuit board 41, the third flexible circuit board 41 includes a third circuit board body 411, and a third ultrasonic receiver 412 and two third photoelectric receivers 413 both disposed on the third circuit board body 411, the third ultrasonic receiver 412 is disposed between the two third photoelectric receivers 413 and opposite to the second through hole 112, and the third ultrasonic receiver 412 is configured to receive the ultrasonic signal.
It can be understood that the connection between the third flexible circuit board 41 and the front shell 11 can be implemented in various manners, and optionally, a third locking groove is formed on one side of the front shell 11 of the housing 1, a third locking block is formed on one side of the third flexible circuit board 41 close to the front shell 11, and the third locking block is locked in the third locking groove, so that the stable connection between the third flexible circuit board 41 and the front shell 11 is achieved. The present embodiment does not limit the specific connection manner between the third flexible circuit board 41 and the front shell 11, and for example, bolts, snap-fit connection, etc. are within the protection scope of the present embodiment.
Further, the first flexible circuit board 22, the second flexible circuit board 32 and the third flexible circuit board 41 are inserted into the signal analysis circuit board 5, so as to realize communication connection between the three ultrasonic receivers and the six photoelectric receivers and the signal analysis circuit board 5. The signal analysis circuit board 5 may perform analysis calculation on the photoelectric signals received by the six photoelectric receivers and the ultrasonic signals received by the three ultrasonic receivers to determine spatial position information of the signal receiving mechanism 10, where the spatial position information may be a time when the information is received or a spatial three-dimensional coordinate calculated according to the time when the information is received.
The signal receiving mechanism 10 of the present embodiment is mounted as follows:
bending and fixing a first photoelectric receiver 223 of the first flexible circuit board 22 on a first photoelectric mounting table 213 of the first bracket 21, bending and corresponding a first ultrasonic receiver 222 to a first ultrasonic mounting hole 212 position to complete the assembly of the first flexible circuit board 22 and the first bracket 21, then integrally mounting the first flexible circuit board 22 and the first bracket 21 on one side of the inner wall of the front shell 11 by clamping a first clamping block and a first clamping groove, and then corresponding the first ultrasonic mounting hole 212 position to the position of the first through hole 111 of the front shell 11 so as to receive ultrasonic signals;
bending and fixing the second photoelectric receiver 323 part of the second flexible circuit board 32 on the second photoelectric mounting table 313 of the second bracket 31, bending and corresponding the second ultrasonic receiver 322 part to the second ultrasonic mounting hole 312 position to complete the assembly of the second flexible circuit board 32 and the second bracket 31, then integrally mounting the second flexible circuit board 32 and the second bracket 31 on one side of the inner wall of the front shell 11 by the clamping of the second clamping block and the second clamping groove, and then corresponding the position of the second ultrasonic mounting hole 312 to the position of the third through hole 113 of the front shell 11 so as to receive the ultrasonic signal;
the third flexible circuit board 41 is mounted at the middle position of the front case 11, and then the third ultrasonic receiver 412 exactly corresponds to the position of the second through hole 112 of the front case 11, so as to receive the ultrasonic signal;
then, the signal analysis circuit board 5 is arranged in the middle of the front shell 11, and the first flexible circuit board 22, the second flexible circuit board 32, the third flexible circuit board 41 and the keys 6 are correspondingly inserted on the signal analysis circuit board 5 respectively;
the rear case 12 is disposed at the rear side of the front case 11, and the entire structure of the signal receiving mechanism 10 is formed by ultrasonic welding after the front case 11 and the rear case 12 are folded.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A signal receiving mechanism, comprising: a housing (1), at least one signal receiving place being arranged on the housing (1); at least one receiving component, which is arranged in the housing (1) and corresponds to the position of the signal receiving position; the signal analysis circuit board (5) is arranged in the shell (1), is electrically connected with the receiving assembly, and obtains the spatial position information of the signal receiving mechanism according to the signal received by the receiving assembly; and an interface (51) is arranged on the signal analysis circuit board (5) and is used for transmitting the spatial position information to a terminal.
2. The signal receiving mechanism according to claim 1, wherein the number of the signal receiving places is three, and the signal receiving places includes a first through hole (111), a second through hole (112), and a third through hole (113), and the number of the receiving assemblies is three, and the signal receiving mechanism includes a first receiving assembly (2), a second receiving assembly (3), and a third receiving assembly (4), wherein the first receiving assembly (2) is disposed opposite to the first through hole (111), the second receiving assembly (3) is disposed opposite to the second through hole (112), and the third receiving assembly (4) is disposed opposite to the third through hole (113).
3. The signal receiving mechanism according to claim 2, wherein the first through hole (111), the second through hole (112) and the third through hole (113) have a hole diameter larger than 1.5mm and a hole depth smaller than 1.8 mm.
4. The signal receiving mechanism according to claim 2, wherein the housing (1) has an arc-shaped structure, a connection line between the second through hole (112) and a center of the arc-shaped structure coincides with a normal direction of the arc-shaped structure, a connection line between the first through hole (111) and the center of the arc-shaped structure forms a first direction angle a with the normal direction, a connection line between the second through hole (112) and the center of the arc-shaped structure forms a second direction angle B with the normal direction, and the first direction angle a is: a is more than or equal to 15 degrees and less than or equal to 45 degrees, and the range of the first direction angle B is more than or equal to 15 degrees and less than or equal to 45 degrees.
5. The signal receiving mechanism according to claim 2, wherein the first receiving component (2) comprises a first bracket (21) and a first flexible circuit board (22), the first flexible circuit board (22) being mounted within the housing (1) by the first bracket (21);
the first flexible circuit board (22) comprises a first circuit board body (221) and a first ultrasonic receiver (222) and two first photoelectric receivers (223) which are arranged on the first circuit board body (221), wherein the first ultrasonic receiver (222) is positioned between the two first photoelectric receivers (223);
the first support (21) comprises a first support body (211) and two first photoelectric mounting platforms (213) arranged on the first support body (211), each first photoelectric mounting platform (213) is used for mounting one first photoelectric receiver (223), a first ultrasonic mounting hole (212) is formed in the first support body (211), and the first ultrasonic mounting hole (212) is used for mounting the first ultrasonic receiver (222).
6. The signal receiving mechanism of claim 5, wherein the first photo receiver (223) is a silicon photo cell and the first ultrasonic receiver (222) is a MEMS ultrasonic receiver.
7. The signal receiving mechanism of claim 5, wherein the first optoelectronic mounting stage (213) is disposed obliquely to the horizontal direction, and a third angle C is formed between the length direction of the first optoelectronic mounting stage (213) and the horizontal direction, and the third angle C is in a range of: c is more than or equal to 15 degrees and less than or equal to 45 degrees.
8. The signal receiving mechanism according to claim 7, wherein the first opto-electronic mounting stage (213) near the outside of the housing (1) is inclined upward at the third orientation angle C, and the first opto-electronic mounting stage (213) near the middle of the housing (1) is inclined downward at the third orientation angle C.
9. The signal receiving mechanism according to claim 4, wherein the first receiving component (2) and the third receiving component (4) are respectively disposed symmetrically with respect to the normal direction within the housing (1).
10. A traceable head-mounted display device, comprising a display device body (20) and a signal receiving mechanism (10) according to any of claims 1-9, wherein the signal receiving mechanism (10) is connected to the display device body (20) through the interface (51) and transmits the spatial position information to the display device body (20).
11. A positioning system, comprising a signal emitting mechanism and the traceable head-mounted display device according to claim 10, wherein the signal emitting mechanism is used for emitting a signal, the traceable head-mounted display device receives the signal through the signal receiving mechanism (10), and the signal receiving mechanism (10) is connected to the display device body (20) through the interface (51) and transmits the spatial position information to the display device body (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996107.9A CN110596642A (en) | 2019-10-18 | 2019-10-18 | Signal receiving mechanism, traceable head-mounted display device and positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996107.9A CN110596642A (en) | 2019-10-18 | 2019-10-18 | Signal receiving mechanism, traceable head-mounted display device and positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110596642A true CN110596642A (en) | 2019-12-20 |
Family
ID=68851002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996107.9A Pending CN110596642A (en) | 2019-10-18 | 2019-10-18 | Signal receiving mechanism, traceable head-mounted display device and positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110596642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568176A (en) * | 2021-07-31 | 2021-10-29 | 温州职业技术学院 | Multi-functional comfortable type VR all-in-one |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239874B1 (en) * | 1996-11-18 | 2001-05-29 | Armstrong Healthcare Limited | Orientation detector arrangement |
| US20090122298A1 (en) * | 2005-04-10 | 2009-05-14 | Kilolambda Technologies Ltd. | Optical Screen, Systems and Methods For Producing and Operating Same |
| KR20170057993A (en) * | 2015-11-18 | 2017-05-26 | 삼성전자주식회사 | Apparatus and method for tracking position thereof |
| CN207516887U (en) * | 2017-12-18 | 2018-06-19 | 北京凌宇智控科技有限公司 | A kind of head-mounted display apparatus and alignment system |
| CN109407834A (en) * | 2018-10-08 | 2019-03-01 | 京东方科技集团股份有限公司 | Electronic equipment, computer equipment, space positioning system and method |
| CN109671356A (en) * | 2019-01-03 | 2019-04-23 | 京东方科技集团股份有限公司 | A kind of collapsible display device and its control method |
| CN109889744A (en) * | 2019-03-12 | 2019-06-14 | 中新科技集团股份有限公司 | A kind of television set and its remote control system |
| US20190187244A1 (en) * | 2017-12-06 | 2019-06-20 | Invensense, Inc. | Three dimensional object-localization and tracking using ultrasonic pulses with synchronized inertial position determination |
| CN210954321U (en) * | 2019-10-18 | 2020-07-07 | 北京凌宇世纪信息科技有限公司 | Signal receiving mechanism, traceable head-mounted display device and positioning system |
-
2019
- 2019-10-18 CN CN201910996107.9A patent/CN110596642A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239874B1 (en) * | 1996-11-18 | 2001-05-29 | Armstrong Healthcare Limited | Orientation detector arrangement |
| US20090122298A1 (en) * | 2005-04-10 | 2009-05-14 | Kilolambda Technologies Ltd. | Optical Screen, Systems and Methods For Producing and Operating Same |
| KR20170057993A (en) * | 2015-11-18 | 2017-05-26 | 삼성전자주식회사 | Apparatus and method for tracking position thereof |
| US20190187244A1 (en) * | 2017-12-06 | 2019-06-20 | Invensense, Inc. | Three dimensional object-localization and tracking using ultrasonic pulses with synchronized inertial position determination |
| CN207516887U (en) * | 2017-12-18 | 2018-06-19 | 北京凌宇智控科技有限公司 | A kind of head-mounted display apparatus and alignment system |
| CN109407834A (en) * | 2018-10-08 | 2019-03-01 | 京东方科技集团股份有限公司 | Electronic equipment, computer equipment, space positioning system and method |
| CN109671356A (en) * | 2019-01-03 | 2019-04-23 | 京东方科技集团股份有限公司 | A kind of collapsible display device and its control method |
| CN109889744A (en) * | 2019-03-12 | 2019-06-14 | 中新科技集团股份有限公司 | A kind of television set and its remote control system |
| CN210954321U (en) * | 2019-10-18 | 2020-07-07 | 北京凌宇世纪信息科技有限公司 | Signal receiving mechanism, traceable head-mounted display device and positioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568176A (en) * | 2021-07-31 | 2021-10-29 | 温州职业技术学院 | Multi-functional comfortable type VR all-in-one |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207802016U (en) | Mobile terminal and its camera module and holder | |
| CN106412166B (en) | Shell assembly of terminal and terminal | |
| CN207802018U (en) | The holder of mobile terminal and its camera module | |
| CN210426838U (en) | Pressure detection device and terminal | |
| CN210954321U (en) | Signal receiving mechanism, traceable head-mounted display device and positioning system | |
| CN110596642A (en) | Signal receiving mechanism, traceable head-mounted display device and positioning system | |
| JPWO2016103736A1 (en) | Information device and information system | |
| CN210605383U (en) | Wearable equipment with built-in photosensitive element | |
| CN213240485U (en) | Multi-mode information fusion speaker positioning device | |
| CN212846145U (en) | VR office equipment | |
| CN210694195U (en) | Integrated 3D imaging device and electronic equipment | |
| CN211296779U (en) | Camera head | |
| CN203057220U (en) | Mobile phone having camera function | |
| CN208188478U (en) | Split type AR equipment and AR display system | |
| CN107121885B (en) | Base of ray apparatus | |
| CN208806875U (en) | The infrared video sensing device used with infrared induction interactive media system | |
| CN111856754A (en) | VR office equipment | |
| CN201828885U (en) | Thin-type optical indicating device | |
| CN102053732A (en) | Hand input light pen and optical touch control system with same | |
| CN103529960A (en) | Air mouse based on magnetic positioning technology and method | |
| CN213718115U (en) | Projection device | |
| CN218829906U (en) | Wireless audio and video transmission system | |
| CN220251179U (en) | Diversified ambient light measuring device | |
| CN109144332B (en) | Mobile electronic equipment, portable keyboard thereof and intelligent perception input method | |
| CN215268957U (en) | Conference machine and intelligent terminal equipment |
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 |