13results about How to "Guaranteed normality" patented technology

The invention relates to the technical field of Internet of Things security, and provides a security authentication method and system for an Internet of Things device, a medium and a device, and the method comprises the steps: responding to an authentication request of the Internet of Things device, the authentication request comprising a unique identifier, a current timestamp and a comprehensive feature vector of the Internet of Things device; after the current timestamp and the comprehensive feature vector are connected, generating a random challenge value through a random function and sending the random challenge value to obtain a returned Internet of Things equipment response value; after the authentication key, the comprehensive feature vector and the random challenge value are connected, an expected response value is generated through a secure hash function, and whether the Internet of Things equipment is successfully authenticated or not is judged through comparison; and if the authentication is successful, generating a session key, connecting the authentication key with the session key, and updating the authentication key through a secure hash function. The common security threats such as replay attack and man-in-the-middle attack are effectively prevented, and the uniqueness and security of each authentication are ensured.

The embodiment of the invention provides a video memory allocation method, a video memory request method, equipment and a storage medium. In the embodiment of the invention, a video memory occupation request initiated by an application program in a physical machine is intercepted, and a video memory occupation upper limit value is configured for each application program in the physical machine; on the basis, under the condition that the video memory occupation request is intercepted, whether the sum of the to-be-occupied video memory amount requested by the application program at this time and the occupied video memory amount of the application program exceeds the video memory occupation upper limit value corresponding to the application program or not can be judged, and if yes, response to the video memory occupation request is refused. Therefore, the video memory occupation requests generated in the physical machine can be filtered based on the video memory occupation upper limit values configured for the different application programs, so that the video memories occupied by the different application programs are effectively isolated, the problem that the video memories are excessively occupied by part of the application programs is avoided, and the user experience is improved. And thus, the normal performance of each application program sharing the video memory is ensured.

The pipeline comprises a drainage pipe, a baffle and a drainage hole, the baffle is fixedly arranged on the left side in the drainage pipe, the drainage hole is integrally formed in the lower end in the baffle, and a switching assembly is arranged on the left side in the drainage pipe. According to the utility model, through the design of a switching function, the used filter screen and the unused filter screen can be switched, so that the unused filter screen can filter sewage, the normal discharge of the sewage is ensured, in addition, a worker can clean the used filter screen, and the working efficiency is improved. And the subsequent use normality of the used filter screen is ensured. By means of the design of the partition function, when a worker cleans the used filter screen, sewage cannot make contact with the used filter screen, then the situation that the worker is polluted by the sewage is avoided, the convenience of cleaning the used filter screen by the worker is guaranteed, and the worker is protected.

The invention provides a manufacturing method of a solar cell, the solar cell and a photovoltaic module. The manufacturing method of the solar cell comprises the following steps: providing a substrate; forming a first doping layer on the partially exposed surface of one side of the substrate; forming a first passivation layer on the exposed surface of one side, far away from the substrate, of the first doping layer and the exposed surface of the substrate; performing first printing processing on the first passivation layer and the first doping layer to form a plurality of first sub-electrodes which are arranged at intervals along the first direction; and performing second printing treatment on the first passivation layer and the first sub-electrode, and forming a plurality of second sub-electrodes which are arranged at intervals along the second direction on the exposed surface of the first passivation layer and the exposed surface of the first sub-electrode. The problem that the performance of the solar cell is affected by metal contact recombination in the prior art is solved.

Disclosed are an information processing system and method, a program product, and a normality assurance system, the information processing system comprising a processor that, when it is confirmed that a startup program is normal with reference to first confirmation information for confirming the normality of the startup program, performs startup based on the startup program, and if it is confirmed that the startup program is normal with reference to second confirmation information for confirming the normality of the startup program, performs startup based on the startup program. And communicating with one or a plurality of other systems registered in advance, referring to second confirmation information for confirming the normality of the startup program of the other systems, mutually confirming that the startup program is normal with the other systems, and when mutually confirming that the startup program is normal with the set number or more of other systems, performing communication with the other systems. Communication with an external device is permitted.

The intelligent temperature control aquarium boiler comprises a boiler body, a burner and a liquid inlet pipe, the burner is fixedly arranged at the inner bottom end of the boiler body, and the liquid inlet pipe fixedly penetrates through the upper end of the left side of the outer portion of the boiler body. According to the utility model, through the design of the diversion function, liquid can be heated in a diversion state, so that the liquid can quickly reach a temperature range required to be heated, the liquid heating time is shortened, and the heating efficiency of the liquid is improved by using the device disclosed by the utility model; and it is ensured that the liquid can reach the temperature range required by workers in a short time. Through the design of a filtering function, impurities in liquid and impurities in flue gas can be filtered, and through the design of an air blowing function, the impurities can be extracted from the interior of the shell, so that the impurities are prevented from blocking the first activated carbon filter screen and the second activated carbon filter screen; and the using normality of the filtering structure of the device is ensured.

The present invention belongs to a shielding method, and specifically relates to a shielding method for satellite Ethernet broadcast storms. It includes the following steps: (1) an Ethernet communication step to effectively shield broadcast storms based on a satellite embedded environment; (2) an Ethernet communication step. Compared with the prior art, the present invention has the following beneficial effects: (1) turning off the Ethernet broadcast receiving function, effectively dealing with broadcast storms and excessive ARP broadcasts, not frequently entering invalid interrupts, avoiding machine loss or even causing resets, preventing faults from spreading, and ensuring the normal operation of the device; (2) when the broadcast is turned off, normal Ethernet communication is achieved, effectively dealing with problems such as replacement of communication targets and power-off and restart of communication targets; (3) querying the ARP cache before sending Ethernet messages, effectively avoiding sending too many ARP broadcasts when the communication target is abnormal or the Ethernet network is abnormal, and avoiding increasing the burden on the space network and causing the space network status to deteriorate.

The utility model discloses a pole group packaging film and a battery pack, the pole group packaging film comprises a first piece, a second piece and a third piece which are connected in sequence, first folds extending along the length direction of the pole group packaging film are formed between the first piece and the second piece and between the third piece and the second piece, and second folds extending along the length direction of the pole group packaging film are formed between the third piece and the second piece. The distance T1 between the two first creases is not smaller than the width T of the pole group, and the difference value between the distance T1 between the two first creases and the width T of the pole group is within the range of 1-3 mm. According to the pole group packaging film disclosed by the utility model, the difference value between the distance T1 between the two first creases and the width T of the pole group is controlled within the range of 1mm-3mm, so that the design parameters of the pole group packaging film are reasonable, the pole group packaging film effectively wraps the pole group, the safety of a battery cell is ensured, short circuit between the pole group and a shell is avoided, and the service life of the battery cell is prolonged. And the production efficiency is improved.

The utility model discloses a bag type grouting jacking deviation rectifying device which is a discharging assembly composed of a guide pipe, a connecting pipe arranged in the guide pipe in a threaded mode and an air bag fixedly arranged at the bottom of the connecting pipe in a sealed and sleeved mode, a baffle is arranged at the lower end of the guide pipe in a sleeved mode, and an annular groove is integrally formed in the outer side of the interior of the baffle in a surrounding mode. An air cushion is fixedly arranged in the annular groove in a circle, and a driving assembly arranged at the top end in the baffle can control the baffle to move in the longitudinal direction of the guide pipe. Through the design of a hiding function, the air bag and the air cushion are in a non-contact state with the through hole and the pile hole in the process of placing the air bag and the air cushion into the through hole and the pile hole, so that damage caused by mutual friction between the air bag and the air cushion and the inner side of the through hole and the inner side of the pile hole in the placing process is avoided; the air bag and the air cushion are protected, and the normality of follow-up use of the air bag and the air cushion is ensured.

The utility model discloses an anti-seismic support connecting device which comprises a mounting plate and a mounting sleeve, the mounting sleeve is fixedly arranged on the right side of the mounting plate, and a clamping assembly is arranged in the mounting sleeve. Through the design of double clamping functions, the inner wall and the outer wall of the pipeline can be clamped, the situation that the pipeline deforms due to the fact that the one-way clamping force of the pipeline is too large is avoided, and therefore by means of the device, the pipeline clamping and fixing effect is improved, and the pipeline is protected. Through the design of a supporting function, the internal strength of the mounting sleeve can be strengthened, the stability of the overall strength of the mounting sleeve is ensured, in addition, through the design of the receding holes and the receding holes, the interior of a pipeline can be in a communicated state with the outside, and it can be known that by means of the device, the pipeline can be effectively protected. And the normality of the pipeline in use is ensured.

This utility model discloses a waterproof low-pressure cabinet, comprising: multiple low-pressure cabinet bodies, with adjacent cabinet bodies interconnected based on a busbar parallel connection structure; each cabinet body contains a channel steel base and a channel steel frame, the channel steel frame being fixed to the channel steel base; the channel steel frame includes several sets of longitudinal plate frames, each set of longitudinal plate frames including multiple first and second plates; the first and second plates within each set of longitudinal plate frames are perpendicular to each other; each cabinet body has a waterproof door, the waterproof door being hinged to the cabinet body. This utility model, by setting a channel steel frame that fits against the inner wall of the cabinet body, distributes the force on the cabinet body to the channel steel frame, improving the overall load-bearing capacity, reducing the risk of deformation due to water pressure, and ensuring the low-pressure cabinet body maintains an IP68 waterproof and dustproof rating.

The utility model discloses a comprehensive distribution box with a high temperature early warning function, which comprises a box body and a sealing plate, and a refrigeration assembly is arranged on the right side outside the box body. Through the design of a shunting function, external gas can be pumped into the shell for shunting treatment, so that the refrigeration assembly can fully cool the shunted external gas, and then the shunted and cooled gas is discharged into the box body; the event that the temperature in the box body rises due to external high temperature is avoided, and the cooling effect in the box body is ensured. Through the design of an early warning function, the temperature in the box body can be monitored in real time, when the temperature in the box body is too high, a worker is prompted to carry out corresponding maintenance on electronic elements in the box body through the warning effect of an alarm, and in addition, through the design of mechanical linkage, the working efficiency is improved. The refrigerating assembly can control the air blades to exhaust high-temperature gas in the box body to the outside, and the normal flowing of the gas in the box body is ensured.

The utility model discloses a high fluidity dry method magnetic powder production device which comprises a support and a shell, the shell is fixedly arranged on the top of the support, a feeding hole is integrally formed in the top end in the shell, the rear end of the top of the shell is hinged, and a cover plate is arranged at the front end of the top of the shell through a lock catch. According to the magnetic powder grinding device, the grinding efficiency of the magnetic powder is improved in the mode that the magnetic powder is squeezed and ground at the same time, in addition, due to the mechanical linkage design, the grinding plate is in the reciprocating motion of forward rotation, backward rotation and then forward rotation, the grinding plate conducts multi-directional grinding treatment on the magnetic powder through the action of repeatedly switching the rotation direction, and therefore the grinding efficiency of the magnetic powder is improved. And the grinding effect of the magnetic powder is improved. Through the design of a cleaning function, the brush can repeatedly wipe the top surface of the filter screen, so that the ground magnetic powder is prevented from blocking the filter screen, the normality of the filter screen during use is ensured, and the smoothness of the ground magnetic powder penetrating through the filter screen and falling into the box body is also improved.