CN214375909U - Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system - Google Patents
Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system Download PDFInfo
- Publication number
- CN214375909U CN214375909U CN202023218378.9U CN202023218378U CN214375909U CN 214375909 U CN214375909 U CN 214375909U CN 202023218378 U CN202023218378 U CN 202023218378U CN 214375909 U CN214375909 U CN 214375909U
- Authority
- CN
- China
- Prior art keywords
- special effect
- equipment
- effect equipment
- special
- monitoring module
- 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.)
- Active
Links
Images
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model relates to an immersive cinema special effect equipment intelligent monitoring module and special effect equipment linked system, immersive cinema special effect equipment intelligent monitoring module connects between special effect equipment and special effect switch board, including the special effect equipment state information acquisition unit that is used for real-time supervision special effect equipment running state and be used for connecting and the PWM pulse width modulation circuit of regulation control special effect equipment motor starting current. The utility model discloses a set up special effect equipment state information acquisition unit and PWM pulse width modulation circuit, can cooperate with special effect switch board to realize the intelligent automatic coordinated control and regulation to special effect equipment; the PWM circuit can adjust and control the starting current of the special effect equipment motor, reduce the interference to the power grid when the special effect equipment motor is frequently started, effectively avoid false triggering and realize accurate and reliable control; the wireless communication between each equipment can be realized, the complicated wiring is avoided, the potential safety hazard is reduced, and the communication reliability of the equipment is improved.
Description
Technical Field
The utility model relates to an immersive cinema equipment control technical field, especially an immersive cinema special effect equipment intelligent monitoring module and special effect equipment linked system.
Background
Today, the rapid development of digital arts advocates the experience of a space-dominated audience, and develops naked eye 3D immersive products by combining strong visual creative capabilities through a new digital media technology. Naked eye 3D immersive product is through constituteing confined immersive display device space with the multiaspect screen, can simulate the experience in big space, even infinite space with little space. And scenes can be switched instantly, so that scenes which cannot be experienced by real environment, real time, real speed or real dimensionality are changed. Spectators can experience without wearing any prop or receiving any teaching during experience. The audience can experience the ultra-high definition CG film (scene) personally on the scene when entering the device. The audience has the experience of crossing space-time and shuttle heaven and earth.
In the 5G era, audiences have higher demands on short video consumption and short video experience, the traditional static media and entertainment products cannot meet the demands of the audiences and card punching, and the naked eye 3D immersive product can shoot cool videos and photos while experiencing the audiences, so that the solution which can meet the demands of the audiences at present is formed. The method is applied to the cultural tourist attractions, science and technology museums, exhibition museums, party construction museums, nethong museums, digital theme parks, public media art devices and the like. The immersive theater has a 3D movie, an immersive display system, an immersive surround sound effect, an immersive environment simulation, and special effects equipment. Immersive environment simulation, the special effect accurately matched with each frame is perfectly combined with the film, and various special effect devices generate high-frequency lightning, rain rapidly, air rapidly, snow instantly, romantic bubbles and other special effect effects. However, the special effect devices used in the prior art, including snowflake machines, bubble machines, smoke machines, fans, flash lamps, etc., all have the following disadvantages:
1. no remote linkage control function exists;
2. the computer and the electric cabinet/electric box can not be connected for intelligent linkage;
3. when the special effect equipment reaches a certain number, because the special effect equipment is all motor type equipment, the starting current is very large, and when the special effect equipment is started according to the linkage of films, the starting times are frequent, and serious interference is caused to a power grid;
4. when a plurality of special-effect devices with remote control functions are used together, because the control codes are all a frequency band and are not independent of control signals of each device, other devices can be activated by error control;
5. the output flow of the special effect adjusting equipment is controlled by wire, and when the equipment is installed at a high place on site, the adjusting equipment also needs to climb to the high place to be operated and adjusted;
6. various complex environments on site cause certain difficulty in wiring of control lines, and are easy to be interfered by other lines to cause abnormal communication.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to overcome the defects of the prior art and provide an intelligent automatic linkage control and adjustment device which can realize the special effect equipment; the interference to the power grid when reducing special effect equipment motor and frequently starting can effectively avoid the false triggering simultaneously, realizes accurate reliable immersive cinema special effect equipment intelligent monitoring module of control and special effect equipment linked system.
The utility model adopts the following technical scheme:
the intelligent monitoring module of the immersive cinema special effect equipment is connected between the special effect equipment and the special effect control cabinet and comprises a special effect equipment state information acquisition unit for monitoring the running state of the special effect equipment in real time and a PWM (pulse width modulation) circuit for connecting and adjusting and controlling the starting current of a motor of the special effect equipment; the special effect equipment state information acquisition unit of the special effect equipment intelligent monitoring module comprises a motor current detection circuit for monitoring the running state of a motor of the special effect equipment in real time and a temperature detection circuit for detecting the running temperature of the equipment; the motor current detection circuit comprises a high-power motor current detection circuit for monitoring the current of a high-power motor of special-effect equipment in real time and a water pump motor current detection circuit for detecting the current of a water pump motor of the special-effect equipment.
Furthermore, the intelligent monitoring module of the special effect equipment is installed on the special effect equipment.
Furthermore, the special effect equipment state information acquisition unit is in communication connection with the special effect control cabinet.
Furthermore, the intelligent monitoring module of the immersive cinema special effect equipment comprises a 2-path PWM (pulse width modulation) circuit which is respectively connected with and controls a high-power motor of the special effect equipment and a water pump motor of the special effect equipment.
Furthermore, the special effect control cabinet is connected with and controls the PWM circuit.
Furthermore, immersive cinema special effect equipment intelligent monitoring module passes through wireless communication module and/or net twine and special effect switch board communication connection.
Furthermore, the wireless communication module adopts a 5G module.
The utility model provides an immersive cinema special effect equipment linked system, includes foretell immersive cinema special effect equipment intelligence monitoring module.
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
firstly, through setting up special effect equipment state information acquisition unit and PWM pulse width modulation circuit, can cooperate with the special effect switch board and realize intelligent automatic coordinated control and regulation to special effect equipment.
And secondly, the special effect equipment motor is arranged in one-to-one correspondence with the special effect equipment, the PWM circuit is used for controlling and adjusting the operation of the special effect equipment motor, the starting current of the special effect equipment motor can be adjusted and controlled, the interference to a power grid when the special effect equipment motor is frequently started is reduced, meanwhile, the false triggering can be effectively avoided, and the accurate and reliable control is realized.
Thirdly, through setting up wireless communication module, can realize wireless communication between each equipment, avoid complicated wiring, reduce the potential safety hazard, improve equipment communication reliability.
Drawings
Fig. 1 is a control structure block diagram of an intelligent monitoring module for special effect equipment in embodiment 1 of the present invention;
fig. 2 is a control structure block diagram of the linkage system of the immersive cinema special effect device according to embodiment 1 of the present invention;
fig. 3 is a block diagram of a control structure of the special-effect intelligent electric cabinet according to embodiment 1 of the present invention;
fig. 4 is a control structure block diagram of the special effect control cabinet according to embodiment 1 of the present invention;
fig. 5-16 are the utility model discloses special effect equipment intelligent monitoring module circuit diagram of embodiment 1, fig. 5-16 are reset circuit module, crystal oscillator circuit module, host system chip module, 5V CAN bus communication module, 3.3V CAN bus communication module, power supply circuit module, 5G/WIFI module, direct current motor PWM drive circuit module, PWM adjusts high-power motor circuit module, 2 way current detection circuit module, temperature sensing circuit module, equipment coding circuit module in proper order.
Fig. 17 is a control configuration block diagram of an immersive cinema special effect device linkage system according to embodiment 2 of the present invention.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example 1
Referring to fig. 1, the utility model discloses an immersive cinema special effect equipment intelligent monitoring module installs on corresponding special effect equipment to be connected in between special effect equipment and the special effect switch board, including the special effect equipment state information acquisition unit that is used for real-time supervision special effect equipment running state and be used for connecting and 2 way PWM pulse width modulation circuit of regulation control special effect equipment motor starting current. The special effect equipment state information acquisition unit is in communication connection with the special effect control cabinet. The special effect control cabinet is connected with and controls the PWM circuit. The special effect equipment state information acquisition unit of the special effect equipment intelligent monitoring module comprises a high-power motor current detection circuit for monitoring the current of AC220V of a high-power motor of the special effect equipment in real time, a water pump motor current detection circuit for detecting the current of a water pump motor of 12-24Vdc of the special effect equipment and a temperature detection circuit for detecting the running temperature of the equipment. The 2-path PWM pulse width modulation circuit is respectively connected with and controls a high-power motor of the special effect equipment and a water pump motor of the special effect equipment. The frequency conversion function of a high-power motor can be realized, the motor starting current of special-effect equipment is reduced, and the power grid interference is reduced; and adjusting the voltage of the water pump motor, controlling the rotating speed of the water pump motor and achieving the purpose of controlling the liquid flow. The intelligent monitoring module of the immersive cinema special effect equipment is in communication connection with the special effect control cabinet through a wireless communication module or a network cable. The wireless communication module adopts a 5G dual-band WiFi module circuit RM 58S.
Referring to fig. 1 to 4, use the utility model discloses an immersive cinema special effect equipment linked system of immersive cinema special effect equipment intelligent monitoring module, including special effect server, foretell special effect equipment intelligent monitoring module, special effect intelligence electric cabinet, special effect switch board and user terminal. Special effect control software is arranged in the special effect server.
The special-effect intelligent electric cabinet is used for connecting and controlling the on-off of the power supply of the special-effect equipment. The special effect control device comprises 3 paths of voltage detection units, 3 paths of current detection units, a second controller and a plurality of paths of alternating current contactors for connecting and controlling a power supply of special effect equipment, wherein the second controller is in communication connection with the voltage detection units and the current detection units and is connected and controlled with the alternating current contactors through 12 paths of solid state relays, and the second controller is in communication connection with a special effect control cabinet. The special-effect intelligent electric cabinet also comprises an overcurrent protection circuit, an overpower protection circuit and an electric leakage protection circuit. The second controller uses STM32F103 to control the chip in a programmable mode. The voltage detection unit, the current detection unit, the overcurrent protection circuit, the overpower protection circuit and the leakage protection circuit all adopt the prior art.
The special effect control cabinet is in communication connection with the special effect server, the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module, controls the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module to operate, and is used for receiving a control signal output by the special effect server, analyzing data and outputting the control signal to the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module to control corresponding equipment to operate. The special effect control cabinet comprises a first controller, an LCD display screen used for displaying the running state information of each device in the system in real time, and a manual control interface used for manually controlling the running of the special effect intelligent electric cabinet and the special effect device intelligent monitoring module. The manual control interface includes 8 manual control buttons. The first controller comprises a data analysis module, and the first controller respectively and independently controls the special-effect intelligent electric cabinet and each special-effect equipment intelligent monitoring module through multiple control channels. The first controller adopts an STC12C5A16S2 intelligent chip.
And the user terminal is in communication connection with the special effect server and is used for information display and setting information input.
The special effect control cabinet is communicated with the special effect server through a USB line, and the special effect control cabinet is communicated with the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module through network cables. The special effect server communicates with the user terminal through the wireless communication module. The communication among the devices can be realized by selecting wired or wireless communication modes according to actual needs.
Referring to fig. 1 to 4, based on the utility model discloses an immersive cinema special effect equipment linkage control method of immersive cinema special effect equipment linked system, including following step:
firstly, the special effect server outputs a special effect control signal to a special effect control cabinet according to the special effect control software setting information;
the special effect control cabinet receives a special effect control signal output by the special effect server, analyzes the special effect control signal, outputs the analyzed special effect control signal to the special effect intelligent electric cabinet and/or the special effect equipment intelligent monitoring module, controls the special effect intelligent electric cabinet to start a corresponding special effect equipment power supply to supply power to corresponding special effect equipment, and controls the special effect equipment intelligent monitoring module to regulate and control the starting current of a corresponding special effect equipment motor;
the intelligent monitoring module of the special effect equipment acquires running state information of the special effect equipment in real time through the special effect equipment state information acquisition unit and sends the running state information to the special effect control cabinet, the special effect control cabinet processes the running state information data of the special effect equipment and then sends the running state information data back to the special effect server, the special effect server receives and analyzes the running state information data of the special effect equipment, displays the current running state information of the special effect equipment on a special effect control software interface, adjusts running parameters according to the current running state of the special effect equipment and outputs an adjusting control signal to the special effect control cabinet, after the data is analyzed by the special effect control cabinet, the output signal controls the intelligent electric cabinet and/or the intelligent monitoring module of the special effect equipment, and adjusts the running state of the corresponding equipment according to the adjusting control signal.
And fourthly, the operating parameters of the special effect equipment can be set or modified through the user terminal, the special effect control software or the special effect control cabinet.
When the special-effect intelligent electric cabinet is electrified to work, the state of the current 3-path voltage is detected, whether the 3-path voltage is within the error range of 380V power supply is judged, then parameters are sent to special-effect control software of a special-effect server through a CAN bus, the input voltage of the current special-effect intelligent electric cabinet is displayed on a special-effect software interface, when the voltage difference of the three-phase voltage exceeds a safety value, the software cannot control the start of special-effect equipment, and prompts a user to check a circuit; when the voltage is normal, a user operates the special effect control software, clicks to start the special effect intelligent electric cabinet, then sends a signal to the special effect intelligent electric cabinet through CAN bus communication, and after the special effect intelligent electric cabinet receives the signal, the corresponding alternating current contactor is started to electrify the corresponding special effect equipment. And then starting a current detection function, detecting the current of the three-phase power of the special-effect intelligent electric cabinet in real time, transmitting the current information of the special-effect intelligent electric cabinet to special-effect software of a special-effect server for display through CAN bus communication, recording the current overcurrent protection current value by the special-effect intelligent electric cabinet when the current of the special-effect intelligent electric cabinet exceeds a rated value, cutting off the power supply of special-effect equipment, transmitting the current data to special-effect control software of the special-effect server through a CAN bus for display, giving an alarm, and overhauling or rectifying the circuit by a user according to the data.
When the intelligent monitoring module of the special effect equipment is electrified to work, the running state information of the special effect equipment is collected in real time through the state information collecting unit of the special effect equipment and is sent to the special effect control cabinet, the special effect control cabinet processes the running state information data of the special effect equipment and then sends the data back to the special effect server, and the special effect server receives and analyzes the running state information data of the special effect equipment and displays the current running state information of the special effect equipment on a special effect control software interface; a user CAN click and start corresponding special effect equipment on a special effect control software interface, a CAN bus transmits a control signal to a special effect control cabinet, the special effect control cabinet controls and starts a PWM pulse width modulation circuit, a high-power motor and a water pump motor of the special effect equipment are started, an intelligent monitoring module of the special effect equipment detects currents of the high-power motor and the water pump and judges whether the motor works or not, a temperature detection circuit detects the temperature of a water outlet of the special effect equipment and judges whether the special effect equipment is in a water shortage state or not, detected data are sent to a special effect server through the CAN bus and displayed on the special effect control software interface, and the user CAN know the equipment state. The rotating speed of a motor of the water pump can be adjusted on the special effect control software interface, the PWM pulse width of the water pump can be adjusted, and the rotating speed can be adjusted to control the flow. And the specified codes can be edited for each intelligent monitoring module of the special-effect equipment through special-effect control software, so that the field equipment management is facilitated.
When the special effect control cabinet is electrified to work, a control instruction and a signal of the special effect server are received in real time, current signal data are displayed on an LCD display screen after the signal is analyzed, the signal is sent to a lower special effect intelligent electric cabinet or a special effect equipment intelligent monitoring module, feedback signals of the lower special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module are waited in real time, the current data are displayed on an LCD display screen interface after the signal is analyzed, the signal is sent to the special effect server, the special effect control cabinet can classify, sort and name the special effect equipment intelligent monitoring modules through 8 manual control buttons so as to distinguish equipment with the same type at the lower end, a user can distinguish the signal state of which the received signal belongs to which type, a channel classification can be set for the special effect intelligent electric cabinet in a self-defined mode, and the channel of the intelligent electric cabinet can be named by the user, the corresponding power supply channel types of the special-effect intelligent electric cabinet and the special-effect equipment intelligent monitoring module are convenient to distinguish. The manual control button can manually send an instruction to open and close the special-effect intelligent electric cabinet channel and the special-effect equipment intelligent monitoring module at the lower end under the condition of being separated from the special-effect server, so that the test equipment is conveniently installed in the early stage of a project site to adjust the angle and the output flow of each equipment, and a convenient operation mode can be provided for a later-stage field technician to perform maintenance troubleshooting on the equipment.
The special effect intelligent electric cabinet timing switch can be set through special effect control software, the running state of special effect equipment is controlled to be displayed on an interface, equipment parameters can be adjusted, and the adjusted parameters, the name of the user-defined equipment, the number types and other functions are stored in real time.
Referring to fig. 5 to 16, in this embodiment, the special effect device intelligent monitoring module circuit includes a reset circuit module, a crystal oscillator circuit module, a main control chip module, a 5V CAN bus communication module, a 3.3V CAN bus communication module, a power supply circuit module, a 5G/WIFI module, a dc motor PWM driving circuit module, a PWM adjusting high-power motor circuit module, a 2-way current detection circuit module, a temperature sensing circuit module, and a device coding circuit module. The modules all adopt circuits in the prior art, and circuit wiring diagrams are shown in figures 5-16, which are not described in detail herein.
Example 2
Referring to fig. 17, the present embodiment is different from embodiment 1 in that: the user terminal of the immersive cinema special effect equipment linkage system comprises a user PC terminal and a user mobile phone terminal. The user PC terminal and the user mobile phone terminal can be both provided with special effect control software and communicated with the special effect server. The special effect control cabinet is in communication connection with the special effect server, the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module, and the server is in communication connection with the user terminal through the wireless communication module. The wireless communication module comprises a 5G router used for receiving signals and transmitting the signals after transfer processing, and a 5G module or a 5G double-frequency module built in each device. The special effect server is internally provided with a 5G module, and the special effect control cabinet, the special effect intelligent electric cabinet and the special effect equipment intelligent monitoring module are internally provided with a 5G double-frequency module. The 5G router adopts a Huawei Q2s primary and secondary 5G router, the 5G module adopts a Huawei 5G module MH5000, and the 5G double-frequency module adopts a 5G double-frequency WiFi module RM 58S.
The aforesaid is only two concrete implementation manners of the utility model, nevertheless the utility model discloses a design concept is not limited to this, and all utilize this design right the utility model discloses carry out immaterial change, all should belong to and infringe the action of the scope of protection of the utility model.
Claims (8)
1. Immersive cinema special effect equipment intelligent monitoring module connects between special effect equipment and special effect switch board, its characterized in that: the special effect equipment state information acquisition unit is used for monitoring the running state of the special effect equipment in real time, and the PWM circuit is used for connecting, regulating and controlling the starting current of a motor of the special effect equipment; the special effect equipment state information acquisition unit of the special effect equipment intelligent monitoring module comprises a motor current detection circuit for monitoring the running state of a motor of the special effect equipment in real time and a temperature detection circuit for detecting the running temperature of the equipment; the motor current detection circuit comprises a high-power motor current detection circuit for monitoring the current of a high-power motor of special-effect equipment in real time and a water pump motor current detection circuit for detecting the current of a water pump motor of the special-effect equipment.
2. The immersive theatre special effects device intelligent monitoring module of claim 1, wherein: the intelligent monitoring module of the special effect equipment is installed on the special effect equipment.
3. The immersive theatre special effects device intelligent monitoring module of claim 1, wherein: the special effect equipment state information acquisition unit is in communication connection with the special effect control cabinet.
4. The immersive theatre special effects device intelligent monitoring module of claim 1, wherein: the special effect equipment water pump control circuit comprises 2 paths of PWM pulse width modulation circuits which are respectively connected with and control a high-power motor of special effect equipment and a water pump motor of the special effect equipment.
5. The immersive theatre special effects device intelligent monitoring module of claim 1 or 4, wherein: the special effect control cabinet is connected with and controls the PWM circuit.
6. The immersive theatre special effects device intelligent monitoring module of claim 1, wherein: and the special effect control cabinet is in communication connection with the special effect control cabinet through a wireless communication module and/or a network cable.
7. The immersive theatre special effects device intelligent monitoring module of claim 6, wherein: the wireless communication module adopts a 5G module.
8. The utility model provides an immersive cinema special effect equipment linked system which characterized in that: include the immersive theatre special effects device intelligent monitoring module of any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218378.9U CN214375909U (en) | 2020-12-28 | 2020-12-28 | Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218378.9U CN214375909U (en) | 2020-12-28 | 2020-12-28 | Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214375909U true CN214375909U (en) | 2021-10-08 |
Family
ID=77949016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023218378.9U Active CN214375909U (en) | 2020-12-28 | 2020-12-28 | Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214375909U (en) |
-
2020
- 2020-12-28 CN CN202023218378.9U patent/CN214375909U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10250858B2 (en) | Stage lamp based on TCP/IP protocol and control system thereof | |
| CN214375908U (en) | Immersive cinema special effect control cabinet and special effect equipment linkage system | |
| US20220248236A1 (en) | Method and apparatus for adjusting wireless access terminal, access terminal and detection device | |
| CN104021653B (en) | Road junction state video analysis warning on duty and method | |
| CN108319193A (en) | A kind of stage equipment comprehensive intelligent control system | |
| CN214375909U (en) | Immersive cinema special effect equipment intelligent monitoring module and special effect equipment linkage system | |
| CN102680021B (en) | Detection equipment for 4D (4-Dimensional) dynamic cinema | |
| CN203366087U (en) | Automated control and monitoring system for digital cinema equipment | |
| CN206775636U (en) | A kind of emergency guarantee video conference system | |
| CN214380296U (en) | Immersive cinema special-effect intelligent electric cabinet and special-effect equipment linkage system | |
| CN112711209B (en) | Immersive cinema special effect equipment linkage system and linkage control method | |
| CN109426209A (en) | A kind of electrical system for freeway tunnel | |
| CN216700149U (en) | Image output control system based on android system | |
| CN103944659A (en) | Digital amplifier server based on public broadcasting system | |
| CN115175115A (en) | Outdoor LED display screen intelligent control system based on 5G network | |
| CN110758172A (en) | Internet of things-based electric vehicle charging and advertising all-in-one machine system and terminal | |
| CN105467872B (en) | Graphic configuration order networked control systems | |
| CN212135173U (en) | Multi-device joint control circuit based on modulation alternating current waveform | |
| CN206283516U (en) | The detection platform of intelligent MANET data terminal communication base station | |
| CN209472799U (en) | A kind of light cube lighting control system based on DMX512 agreement | |
| CN111061241A (en) | Refrigerating unit controller and refrigerating unit control method | |
| CN105578685A (en) | Stage lamplight control system | |
| CN220023348U (en) | Digital cinema controller | |
| CN205091872U (en) | Dispatch video monitoring fault alarm device | |
| EP3726302A1 (en) | Standard track smart home system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |