31results about How to "Guaranteed to be used correctly" patented technology

The invention relates to the field of computer information security, and discloses a safe and convenient key management mechanism. The key management mechanism comprises the following steps: firstly, primitively initializing cryptographic equipment in an initial state, and then generating an equipment signature key and an administrator signature key; issuing all administrator certificates, and then generating a backup key, a backup equipment key and a memory equipment key to finish primitive initialization; and electrifying for initializing the cryptographic equipment in a ready state. By adopting the technical scheme, the key management mechanism ensures key safety management, and ensures key safety use by explaining the initialization mode and process through various types of key initialization, thus solving the problem of realizing the safety and reliability of the cryptographic equipment in terms of key management and use.

The invention discloses a GIS-based grounding wire safety monitoring system, comprising a grounding wire signal transmission device, a grounding wire signal grounding wire signal receiving device and a grounding wire computer management system. Through the monitoring system, personnel in the power control center can judge the hanging state of grounding wire not only according to the reports of in-site construction workers, but also can directly judge the hanging state, the hanging number and the hanging position and the like by the monitoring system, thereby significantly reducing the incidence rate of electrical accidents.

The invention discloses a specimen holder of a tube or a bar for a tension test. The specimen holder comprises a tension handle, a locking part, a holding seat and a holder body, wherein the holder body comprises a cylinder body and a circular truncated cone body which are integrally formed; the maximum external diameter of the circular truncated cone body is greater than the external diameter of the cylinder body; the whole circular truncated cone body is provided with at least two grooves along the axial direction, and the two grooves are used for segmenting the circular truncated cone body into holding blocks; a holding part for holding a test specimen is arranged on the inner surface of each clamping block; the holding seat sleeves the outside of the holder body and is connected with the holder body in a matching way; the holding seat is provided with a first conical surface matched with the circular truncated cone body; the front end of the locking part is connected with the holding seat through a spiral structure; the tension handle is connected with the rear end of the locking part. The specimen holder disclosed by the invention is small in size, convenient in disassembly and assembly and uniform and reliable in holding force; the specimen holder realizes automatic centering in a clamping process, is uniform, quick and reliable in clamping, and is particularly suitable for being used in a high-low temperature environmental cabinet with compact structure and small space.

The present invention relates to the technical field of medical devices and discloses an outdoor intelligent electrocardiogram monitoring system and a working method thereof. An MCU circuit unit, a wireless circuit unit, a storage circuit unit and an analog-to-digital conversion circuit unit and at least one pair of electrocardiosignal connection ends are built into an electrocardiogram chest paste terminal, automatic collection and local recording of digital electrocardiogram data are realized, existing algorithm runs to diagnose whether abnormal electrocardiogram exists, if the abnormal electrocardiogram is diagnosed, diagnosis results and corresponding abnormal electrocardiogram data are sent wirelessly to a communication base station. Besides, the diagnostic results and corresponding abnormal electrocardiogram data can be transferred and uploaded to a back-end server through the communication base station, then the back-end server generates an alarm message and the alarm message istransmitted to a medical care terminal in a nearby region of the communication base station. Thus, the outdoor intelligent electrocardiogram monitoring system can notify professional medical staff intime for emergency treatment in case of emergency and is especially suitable for outdoor scenes such as physical examination, training, military training and the like.

The invention relates to a multifunctional myopic control eyeglass. The eyeglass which comprises a glass frame with height-adjustable nose supports, and eyeglasses is characterized in that: each eyeglass comprises an upper far luminosity zone, a middle zone and a lower close reading zone; and there is a visual channel with two degree changes, wherein one degree change is between the optical center of the upper far luminosity zone and the optical center of the middle zone just below the upper far luminosity zone, and the other degree change is between the optical center of the middle zone and the optical center of the close reading zone just below the middle zone. The eyeglasses are specially divided into three zones for the zero adjustment and the zero aggregation of reading and writing in the invention, so problems of the adjustment and the aggregation of close range reading and writing are thoroughly solved, the visual fatigue is eliminated, and myopia and degree increase are prevented, thereby present computer times of the comprehensive eye utilization are complied. The multifunctional myopic control eyeglass which allows previous neglected computer groups to be substantially facilitated allows the visual field to be clear, real and stable through the humanized zone height of each zone of the eyeglasses. The three zones which are used for cooperating with the adjustment of the eyeglass frame allow an image jumping phenomenon to be avoided. The wearing position of the eyeglass is accurate to guarantee the correct utilization of each zone, prevent the generation and the development of myopia caused by the fatigue of internal and external muscles of eyes and ciliary muscles.

The invention relates to the technical field of medical instruments, and discloses an intelligent dynamic electrocardiogram system and a working method thereof. On one hand, an MCU circuit unit, a Bluetooth wireless circuit unit, a storage circuit unit, an analog-to-digital conversion circuit unit and at least one pair of electrocardiogram signal connection ends are built in an electrocardiogram recording terminal, and automatic collection and local recording of digital electrocardiogram data can be achieved; on the other hand, the Bluetooth wireless circuit unit and a WiFi wireless circuit unit are built in a charging box. During charging, the digital electrocardiogram data can be transferred and uploaded to a background server by an established Bluetooth D2D wireless network and WiFi wireless network. The data transmission manner can not only reduce the power consumption demand for the electrocardiogram recording terminal, but also reduce complexity of the electrocardiogram recordingterminal, so that additional communication sensor fittings are not required to be arranged, weight is further reduced, wearing is convenient, instability of Bluetooth real-time transmission is reduced, and the effects of electromagnetic interference and the like are prevented.