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31results about How to "Solve limited storage space" patented technology

External Bluetooth equipment driving system for set-top box

The embodiment of the invention discloses an external Bluetooth equipment driving system for a set-top box, which comprises a Bluetooth protocol module, a Bluetooth interface module, an equipment driving module, a Bluetooth equipment module and a loading module, wherein the Bluetooth protocol module is used for realizing a higher-layer application service; the Bluetooth interface module is used for finishing the detection of Bluetooth hardware equipment, initialization of an embedded interface module and the like; the equipment driving module is used for establishing a physical link for Bluetooth equipment, establishing an L2CAP logic link, preparing for data communication between the equipment, waiting for data transmission and receiving events, starting the data communication, calling different functions according to transmission and receiving types, and after the transmission and receiving processing of data is finished, canceling the link and resetting each parameter of the system; the Bluetooth equipment module corresponds to each Bluetooth hardware equipment; and the loading module is used for realizing the loading of an external Bluetooth equipment driving module for the set-top box, and realizing the sharing of all Bluetooth equipment under the condition of not installing various Bluetooth equipment drivers. The external Bluetooth equipment driving system for the set-top box achieves Bluetooth equipment driving universality and equipment compatibility.
Owner:GUANGDONG XINGHAI DIGITAL HOME IND TECH RES INST

Defect detection method and system for cross-architecture firmware heap memory

The embodiment of the invention provides a defect detection method and system for a cross-architecture firmware heap memory. The method comprises the steps: acquiring an application program in a simulator and firmware, and analyzing the application program in the simulator based on a binary translation technology, so as to enable the application program to be matched with a preset test environmentsystem architecture; and performing mapping to generate a shadow memory by traversing and executing the registered heap memory read-write hook function and the heap memory allocation hook function, and executing a preset memory defect detection algorithm based on the shadow memory to obtain a heap memory defect detection result. According to the embodiment of the invention, the cross-platform characteristic of the execution module is simulated; a detection tool does not need to be deployed into equipment where firmware is located, the unpractical requirement that a traditional memory detection tool needs to be deployed in the device is greatly overcome, the firmware test efficiency is improved, the problem that the storage space of the IoT device is limited is solved, and meanwhile, the memory defect detection module also provides an effective solution for detecting various heap memory defects in a cross-architecture firmware scene.
Owner:TSINGHUA UNIV +1

Electronic medical record fine-grained access control and ciphertext searchable method based on block chain

The invention discloses an electronic medical record fine-grained access control and ciphertext searchable method based on a block chain. The method comprises the following steps: dividing medical data into a public part and a private part, and giving different access structures to hospitals; sending a symmetric key; respectively encrypting the public part and the private part of the medical dataand uploading the public part and the private part to a cloud server; generating an index by utilizing the keyword; encrypting a symmetric key in the symmetric searchable encryption technology by using an attribute-based encryption technology, and uploading the encrypted symmetric key to a data pool; sending a request containing attribute information and interested keywords to the patient by a user; returning an attribute private key and a search voucher by a patient; sending the search voucher to the intelligent contract by the user, wherein the intelligent contract returns an index and a table; sending the index and the search voucher to the cloud server by the user, wherein the cloud server returns the medical data ciphertext, the ciphertext ID and the decryption table; and decrypting the symmetric key and the medical data by the user. The method is simple, effective and easy to operate, and the local load pressure is reduced while the data security is ensured.
Owner:YANGZHOU UNIV

Environment protection device for collecting landfill gas

The invention discloses an environment protection device for collecting landfill gas. The environment protection device comprises a box body and box covers, wherein the left side and the right side ofthe upper end of the box body are each provided with one box cover; the outer side of the lower end of each box cover is fixedly connected with a second thin rod; a rubber hose is arranged inside ofthe upper end of an air suction pipe; the left and right sides of the rubber hose communicate with the air suction pipe; the interior of the air suction pipe communicates with an exhaust pipe througha three-way connecting pipe; and the exhaust pipe communicates with an outside gas collection position. According to the environment protection device for collecting the landfill gas, the box body, the box covers, a hydraulic cylinder, a hydraulic rod, garbage and a pressing plate cooperate with each other, so that oil is injected into the hydraulic cylinder to squeeze the garbage after the garbage is placed inside the box body, and the problem that landfill interior storage space is limited is solved; and through cooperation of the box body, the garbage, the box covers, a sliding block, a first thin rod, a fan, the air suction pipe and the exhaust pipe, the problem that the gas produced by landfilling pollutes the environment is solved.
Owner:QIQIHAR JINGGONG WEIYE MACHINE TOOLS CO LTD

Handheld three-dimensional scanner control system with gyroscope

The invention discloses a handheld three-dimensional scanner control system with a gyroscope. The handheld three-dimensional scanner control system comprises a control mainboard, an image module and a gyroscope module, the control mainboard is electrically connected with the gyroscope module and the image module, and a three-dimensional image acquisition module, a three-dimensional image recognition module and a three-dimensional image processing module are arranged in the image module. The control mainboard is electrically connected with a storage module, a control center and a wireless module, and the wireless module is wirelessly connected with a wireless controller and a cloud disk. According to the invention, two control modes of the control center and the wireless controller are arranged, so that the operation is more convenient, remote operation can be realized; intelligent operation is adopted in the whole process, operation of the operation system can be achieved only through few personnel, manpower is greatly saved, the problem that in the prior art, the storage space of a storage module is limited is solved by arranging the cloud disk, and the system is suitable for large-scale application and popularization.
Owner:华朗三维技术(深圳)有限公司

A defect detection method and system for cross-architecture firmware heap memory

Embodiments of the present invention provide a defect detection method and system for cross-architecture firmware heap memory. The method includes: obtaining the application program in the emulator and firmware, and analyzing the application program in the emulator based on the binary translation technology, so that the application program is adapted to the system architecture of the preset test environment; and performing register heap memory reading and writing by traversing The hook function and the heap memory allocation hook function map to generate shadow memory, execute the preset memory defect detection algorithm based on the shadow memory, and obtain the heap memory defect detection result. The embodiment of the present invention eliminates the need to deploy detection tools to the device where the firmware is located by simulating the cross-platform characteristics of the execution module, which greatly overcomes the unrealistic demand that traditional memory detection tools need to be deployed in the device, and improves the efficiency of firmware testing , to solve the problem of limited storage space of IoT devices, and the memory defect detection module also provides an effective solution for detecting various heap memory defects in cross-architecture firmware scenarios.
Owner:TSINGHUA UNIV +1

Surgical operating instrument storage box

PendingCN113925622AEnables replacement or repair operationsIncrease display spaceSurgical furniturePhysicsSurgical instrument
A surgical operating instrument storage box comprises: a box body, wherein the front side and the rear side of the box body are each provided with a plurality of net openings, a storage battery is embedded in the bottom end of the box body, an ultraviolet lamp strip used for disinfection is assembled on the inner wall of the box body, and a switch piece used for connecting and disconnecting the storage battery and the ultraviolet lamp strip is installed on the outer surface of the box body; and a box cover which covers the opening end of the box body in an overturning manner, wherein a movable assembly used for hanging surgical operating instruments is clamped on the inner side of the box cover. According to the technical key points, the turnover side plates are used and combined with the folding assembly for use, opening and closing operation can be carried out on the network port, sealing and opening treatment of the internal space of the box body is achieved, and meanwhile the storage space of the whole box body can be expanded through use of the folding assembly; and the box cover and the movable assembly are combined for use, after the movable assembly is unfolded, the movable assembly can be used for temporarily hanging surgical instruments, waste liquid can be conveniently collected and treated through the clamping box, and meanwhile the placement space of the surgical instruments is further expanded.
Owner:合肥基路伯医疗有限公司
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