34results about How to "Mandatory" patented technology

The invention discloses a mandatory access control device based on an Android platform and a control method thereof. The device comprises a security server and is characterized in that an HOOK module communicated with the security server is embedded in the kernel of the Android platform for intercepting an access request of an operation system process to a kernel object, and the access request is provided for the security server for security judgement; and the HOOK module controls whether the access request is permitted or not according to the security judgement result of the security server. The invention does not allow a subject to interfere an access control strategy, determines whether access is permitted or not by comparing the security label of the subject and an object and has higher security than own two-layer security mechanism of the Android system.

The invention discloses a rivet quality grading and automatic sorting system. The rivet quality grading and automatic sorting system comprises a material conveying device, a detection device, a screening device and an automatic control unit, wherein the material conveying device is used for conveying rivets to the detection device and outputting the detected rivets to the screening device; the detection device comprises a clamping mechanism and an information acquisition mechanism; after the rivets are clamped, a pull rod electronic scale is used for measuring the diameter of a rivet rod and acamera is used for acquiring images of the rivets; an industrial personal computer is used for driving quality grades of the rivets according to the diameter of the rivet rod and an image processingtechnology, recording a quality grade division result and transmitting the quality grade division result to the screening device; the screening device comprises a sorting groove and a sorting barrel,rotating the sorting groove according to the quality grade division result of the rivets and conveying the rivets into the sorting barrel with the corresponding grade. According to the rivet quality grading and automatic sorting system disclosed by the invention, the detection precision can be effectively improved by adopting the pull rod electronic scale and the image processing technology, and different evaluation standards can be selected to finish quality grading and automatic sorting of various types of the rivets; the working efficiency is relatively high.

The invention discloses a PDC drill tool with an alternating cutting trajectory, and belongs to the field of rock breaking tools for drilling equipment. The PDC drill tool with the alternating cutting trajectory comprises an eccentric shaft, an outer shell, a PDC drill and a cycloid shaft. The PDC drill is fixedly connected to the cycloid shaft, the cycloid shaft is matched inside the outer shell and can eccentrically rotate relative to the alternating trajectory, and an eccentric shaft section arranged on the eccentric shaft is matched in an inner cavity of the cycloid shaft to form a revolute pair. An inner flow channel of the eccentric shaft, an inner flow channel of the cycloid shaft and an inner flow channel of the PDC drill are communicated. By the adoption of the PDC drill tool, the alternating cutting trajectory movement can be made, the stratum eating-in capacity of the PDC drill can be improved remarkably, rock breaking efficiency is improved, the abrasion speed of cutting teeth can be better lowered, and in particular, the PDC drill tool has obvious technical advantages in a deep stratum which cannot be drilled easily and in a high hardness and high abrasiveness stratum.

The invention discloses a control method of a 3D (Three-Dimensional) glasses system. The control method of the 3D glasses system comprises a pair of 3D glasses. The pair of 3D glasses comprises a glasses frame, liquid crystal glasses lenses and a start control device. The start control device comprises a signal receiving module, a power supply management module and a central control module. The central control module comprises a video control module. Each liquid crystal glasses lens comprises a connecting terminal connected to an LCD (Liquid Crystal Display) drive module in the video control module. The connecting terminal passes through a left glasses frame and a right glasses frame close to a middle node pad and extends into a receiving cavity. The left glasses frame or the right glasses frame comprises a first knob connected to an LCD time sequence adjusting module in the video control module. The first knob is used for the user to manually adjust the amplitude of a time sequence waveform received by the LCD time sequence adjusting module. The light transmittance of the liquid crystal glasses lenses can be manually adjusted directly by this way.

The invention relates to a system which is used in prison network long distance video education. It is made up of video compression card, audio adaptation card, desktop bullet type camera, audio wire jumper, electric power supply extension cord, and video signal line. It is mainly applied in prison modernization management or other field.

The invention relates to a non-metal plate punched (or injection molded) porous non-metal wrist band or a latticed non-metal wrist-wear electronic monitoring terminal, wherein electrically conductive metal powders are added in the non-metal plate; the electronic monitoring terminal is obtained through subjecting a high molecular polymer material to surface treatment; and the high molecular polymer material is formed by weaving non-metal fibers and is added with the electrically conductive metal powders. The air permeable problem of continually wearing wrist band is solved through the latticedwrist band structure and air permeable touch points arranged at a bottom box; a metal material is furthest prevented being illegally utilized by a wearer because of the utilization of the non-metal material; and therefore, the electronic monitoring terminal is particularly suitable to be continually worn so as to monitor special groups in prisons.

The invention discloses an internal combustion engine thermal exhaust treatment device, and belongs to the technical field of automobile exhaust treatment. The device comprises a tube body (1) and a heating strip (2), the tube body (1) is of a venturi tube structure, an opening (13) is formed in the small end outer wall of the tube body (1), and the heating strip (2) is wound on the large end outer wall of the tube body (1). The device is simple in structure, convenient to mount, high in exhaust treatment effect, and high in work stability, during the actual use, the two ends of the device tube body (1) are fixed between an automobile exhaust pipe and a silencer, as the internal combustion engine exhaust is the high-speed air flow, the rapid sucking-in of the oxygen can be achieved throughthe internal and external pressure difference, heating is achieved through the heating strip (2), the purpose of oxygenation increasing and heating for secondary combustion is achieved, and the problems that existing automobile exhaust treatment is inconvenient and is prone to causing the chemical pollution are solved.

The invention provides a public bicycle parking method and a public bicycle parking system. The public bicycle parking system comprises a remote server, a control base station, a parking pile and a public bicycle, wherein the parking pile comprises a first communication module for sending out a broadcast signal containing an idle state, the control base station comprises a second communication module and a control module, the control module compares the number of the idle states with a number threshold value and sends out a locking allowing instruction or a locking refusing instruction, the public bicycle comprises a control chip which is used for retrieving a locking allowing instruction or a locking refusing instruction sent by the control base station and controlling a lock tongue and alock hole to be switched off or controlling the lock tongue and the lock hole to be unlocked; when the lock tongue and the lock hole are unlocked, the control base station interacts with a near fieldincluding the control card and sends a delay request to a remote server, and the remote server suspends rental charging of the public bicycle. After the public bicycle parking system is adopted, users can park public bicycles conveniently, and a new scheme is provided for city management of shared bicycles.

The invention discloses head two-dimensional (2D) and three-dimensional (3D) switching type 3D spectacles comprising a first spectacle frame, a 3D spectacles main body and a rotating mechanism, wherein the first spectacle frame comprises a snap ring connected with a first left spectacle leg and a first right left spectacle leg of the first spectacle frame, the 3D spectacles main body can rotate relatively to the first spectacle frame, the 3D spectacles main body comprises a second spectacle frame, liquid crystal spectacle lenses, an audio output device and a starting control device, the rotating mechanism comprises a driving unit, a first fixing part and a second fixing part, the 3D spectacles main body is used for watching a 3D video, and when needing to watch a 2D video, a remote control rotating command is sent by a remote controller to drive the 3D spectacles main body to rotate relatively to the first spectacle frame so as to directly watch the 2D video through naked eyes, thereby conveniently realizing the alternative switching of 2D and 3D.

The invention discloses stereo spectacles with an audio-visual function, and the stereo spectacles comprise a spectacle frame, liquid crystal spectacle lenses, an audio output device and a starting control device, wherein the starting control device comprises a signal receiving module, a power supply management module and a central control module; the liquid crystal spectacle lenses comprise wiring terminals connected to a video drive module in the central control module, a first turn button connected to a video adjusting module is arranged on the outer side of a left spectacle leg, and the first turn button is used for enabling a user to manually adjust the amplitude of a second video synchronous signal received by the video adjusting module; and a second turn button connected to an audio adjusting module in the central control module is arranged on the outer side of a right spectacle leg, the second turn button is used for enabling the user to manually adjust the amplitude of a second audio synchronous signal received by an audio adjusting module, and the light transmittance of the liquid crystal spectacle lenses and the audio output of the audio output device can be directly and manually adjusted through the mode.

The invention discloses a privacy protection machine learning training and reasoning method and system based on a block chain. The system comprises a machine learning model training module, a machine learning model reasoning service module, and a block chain service module which is connected with the machine learning model training module and the machine learning model reasoning service module and communicates with the machine learning model training module and the machine learning model reasoning service module. The method is applied to a block chain network, and the block chain network comprises a machine learning model owner node, a calculation contractor node, a trusted arbitration node and an inference service client node. Wherein the machine learning model owner node, the calculation contractor node and the trusted arbitration node form a model channel, and the machine learning model owner node, the reasoning service client node and the trusted arbitration node form a reasoning channel; according to the method, model training and reasoning are separated, reasoning services are separated, and good privacy protection is formed by information isolation between channels; and the safety and credibility of the model training and reasoning process are ensured.

The invention discloses a control method of a shutter type 3D eyeglass. The shutter type 3D eyeglass comprises an eyeglass frame, a liquid crystal eyeglass lens and a start control device, wherein the start control device comprises a signal receiving module, a power supply management module and a central control module, the central control module comprises a video control module, and the video control module comprises a video processing module, a video regulating module and a video driving module; the liquid crystal eyeglass lens comprises a wire connecting terminal, the wire connecting terminal is connected to the video driving module, and the wire connecting terminal penetrates through a left eyeglass frame and a right eyeglass frame which are close to middle nasal supports of the eyeglass frame to extend into a containing cavity; the left eyeglass frame or the right eyeglass frame comprises a first rotary knob, the first rotary knob is connected to the video regulating module, the first rotary knob is used for manually regulating the size of the amplitude value of a second video synchronizing signal received by the video regulating module by a user, and the light transmission rate of the liquid crystal eyeglass lens can be directly manually regulated in the way.

The invention discloses a straw harvesting, crushing and kneading forced feeding round straw bundle baler. The baler comprises a straw harvesting, crushing and kneading device, the straw harvesting, crushing and kneading device throws the crushed straw into a straw kneading device, the straw kneading device comprises a screw conveyer shaft rotatably connected between a left side plate and a rightside plate behind a crushing shaft, a screw conveyer belt pulley is fixed to one end, located at the left side plate, of the screw conveyer shaft, a plate-shaped feeding blade is fixedly connected tothe position, corresponding to a kneading discharge hole, of the screw conveyer shaft, sawteeth are arranged on the outer edge of the feeding blade, a screw conveyer is fixedly connected to the screwconveyer shaft at the two ends of the feeding blade, and a kneading groove is fixedly formed between the left side plate and the right side plate below the screw conveyer shaft; the straw kneading device throws the crushed straw into a forced feeding device, the forced feeding device feeds the crushed straw into a baling chamber for baling. The baler can simultaneously complete the harvesting, crushing and kneading operation of the lodging, standing and long straw to avoid the clogging of a feeding system and improve the work efficiency, and the application range of the baler is effectively expanded.

The invention discloses a two-dimensional (2D) and three-dimensional (3D) switching type 3D glasses system, which comprises a host, a remote controller and 3D glasses. The 3D glasses comprise a first glasses frame, a 3D glasses body and a rotating mechanism, wherein the 3D glasses body can rotate relative to the first glasses frame, and comprises a second glasses frame, liquid crystal glasses lenses and a starting control device; the rotating mechanism comprises a driving unit, a first fixing part and a second fixing part; when a user is required to watch a 3D video, the 3D glasses body are used; and when the user is required to watch a 2D video, a remote control rotating instruction is transmitted through the remote controller, so that the 3D glasses body rotates relative to the first glasses frame, and then the user can conveniently watch the 2D video directly with eyes. Therefore, 2D and 3D switching can be conveniently realized.

The invention provides a straw harvesting,smashing and collective rubbing device for a roll bale press baler. The straw harvesting, smashing and collective rubbing device comprises a straw harvestingand smashing device which throws smashed straw into a straw collective rubbing device. The straw collective rubbing device comprises an auger shaft in rotatable connection between a left side plate and a right side plate and behind a smashing shaft; an auger shaft belt wheel is fixedly connected to one end of a left side plate of the auger shaft; a plate-shaped feeding blade is fixed to the position, corresponding to a collective rubbing discharging port, of the auger shaft; the outer edge of the feeding blade is provided with saw teeth; the auger shaft is fixedly connected with augers on thetwo ends of the feeding blade; a collective rubbing tank is fixedly connected between the left side plate and the right side plate and below the auger shaft; the straw collective rubbing device throwssmashed straw to a forced feeding device which feeds the smashed straw to a press baling chamber for press baling. The device can complete harvesting, smashing and rubbing work of lodging, standing and long straw, prevent blockage of a feeding system, increase the working efficiency and effectively increase the application range of press balers.

The invention discloses a programmable controller variable forcing method, system and device and a storage medium, and belongs to the technical field of automation. The programmable controller monitors whether the first forcing signal sent by the master control terminal is received or not in real time, so that after the first forcing signal is monitored, the forcing response operation is triggered according to the first forcing signal; the characteristics of function complication of the programmable controller and system deployment flexibility during operation of the programmable controller can be adapted through triggering of the first compulsory signal, variable compulsory action is started to be executed through the compulsory response operation, the variable value of a target variable in the programmable controller is changed according to the compulsory response operation, compulsory of the target variable is achieved, and the compulsory control accuracy of the programmable controller is improved. Therefore, according to the changed variable value, the user program in the programmable controller is executed, and the mandatory operation result after the user program is executed is sent to the main control terminal, so that the execution efficiency of programmable control is effectively improved, and meanwhile, the software design mechanism and process are simplified.

The invention discloses a method for controlling two-dimensional (2D) and three-dimensional (3D) switching type stereoscopic glasses with an audio-visual function. The 2D and 3D switching type stereoscopic glasses with the audio-visual function comprise a first glasses frame, a 3D glasses body and a rotating mechanism, wherein the 3D glasses body can rotate relative to the first glasses frame, and comprises a second glasses frame, liquid crystal glasses lenses, an audio output device and a starting control device; the rotating mechanism comprises a driving unit, a first fixing part and a second fixing part; when a user is required to watch a 3D video, the 3D glasses body are used; and when the user is required to watch a 2D video, a remote control rotating instruction is transmitted through a remote controller, so that the 3D glasses body rotates relative to the first glasses frame, and then the user can conveniently watch the 2D video directly with eyes. Therefore, 2D and 3D switching can be conveniently realized.