40results about How to "Avoid unsafe situations" patented technology

An apparatus and method for a single operator to load and control the automatic infeeding of workpieces to a saw including the loading of a first workpiece from a nearby supply and placing it onto a moveable structure that that is raised to form a ramp and lowered to release the workpiece. The workpiece moves down the ramp and stops against a stop member located on the top surface of the moveable structure positioned above a first conveyor. The operator controls the lowering of the ramp structure thereupon releasing the workpiece to the first conveyor moving the workpiece transversely past a scanner, which discerns dimensional characteristics of the workpiece. A second conveyor feeds the workpiece into the saw.

The invention discloses an interlock control system in a van. The interlock control system comprises a detection device for the state of a van door, an interlock control device and an engine starter; wherein, when the circuit of the detection device for the state of the van door is closed, the interlock control device can cut off the circuit connection of the engine starter so that the engine starter cannot be started when the van door is in a state of open or is opened. Another interlock control system comprises an engine control device, a power supply device, a van door control device and a van door starter; wherein, the power supply device is provided with a first power supply providing power for a front van and a second power supply providing power for opening or closing the van door; when the engine is in running state, the power supply device cuts off the circuit connection between the second power supply and the van door control device; when the engine is stopped, the power supply device cuts off the circuit connection between the first power supply and the second power supply, thus realizing that the van door cannot be opened when the engine is in running state so as to avoid the occurrence of unsafe situation.

The invention discloses a data transmission mode of P2P communication introducing identity verification anti-counterfeiting and non-peer-to-peer encryption. The method comprises the steps of introducing a register center ETCD for register, starting all nodes and registering at the register center ETCD; all the nodes obtaining service information of a node at the opposite side through the registercenter ETCD; performing communication connection between the successfully registered nodes; each time after identity authentication is passed or a communication connection is built between the nodes,firstly, performing temporary key generation of own nodes, then, exchanging and saving the temporary keys via both sides of the communicating nodes, and respectively using the temporary keys as encryption keys to encrypt a communication content; encrypting the communication content by using the temporary keys of the opposite side, which establishes communication saving; the node of the opposite side decrypting the communication content encrypted through own generated temporary key after receiving the encrypted communication content; and reading the communication content. Through the scheme, the data transmission mode of P2P communication introducing identity verification anti-counterfeiting and non-peer-to-peer encryption in the invention achieves the purpose of safety transmission and hasrelatively high practical value and promotional value.

The invention relates to a key generation method and device, a computer device and a storage medium. The method comprises the steps of obtaining an ID of a logic block address; obtaining a product serial number and a key length of the solid state disk; And performing key derivation processing by using the ID of the logic block address, the product serial number and the length to obtain a key. According to the invention, the serial number of the product is identified. Through performing key derivation processing on the set key length and the ID of the logical block address in the meta-information header, processing is carried out by adopting a splicing algorithm and a national cryptography SM3 algorithm. Key table does not need to be manually filled in. According to the method, the used AESsecret keys are determined according to the ID of the logical block addresses, the product serial number and the set secret key length are combined, it can be avoided that a plurality of logical block addresses use one set of secret keys, the data insecurity situation caused by cracking of secret key table information is avoided, and the correlation and the primitiveness between all sets of AES secret keys can be reduced.

The invention relates to a solar-assisted environment-friendly man-powered passenger car comprising a bicycle frame, a front wheel, rear wheels, steering handlebars, a rear axle and a driving device, wherein the front wheel, the rear wheels, the steering handlebars, the rear axle and the driving device are arranged on the bicycle frame; the driving device is used for driving the rear axle; the rear axle is connected with a gear shifting differential for driving a semiaxis of the rear axle to rotate, and the driving device comprises a foot-operated driving device arranged on the bicycle frame and an electric driving device; the foot-operated driving device is connected to the gear shifting differential through a driving chain wheel; and the electric driving device comprises a speed-reducing motor and an energy storage converter connected with the speed-reducing motor, wherein the speed-reducing motor is connected to the gear shifting differential, the electric driving device is also connected with a control system, and the control system comprises a controller for controlling the output of the motor and a manpower sensor connected with the controller. The passenger car is diversified in power, high in flexibility and high in stability and safety, and a user can realize easy foot-operated driving operation.

The invention discloses an electric-magnetic door lock control device which comprises a laser control circuit, a laser and a controller. The controller is connected with the laser control circuit, thelaser and an electric-magnetic door lock; and the laser control circuit is connected with the laser. After the laser control circuit controls the laser to power on, the laser control circuit sends alaser power-on state signal to the controller; when the electric-magnetic door lock detects that a door is in a close state, the electric-magnetic door lock sends a close state signal to the controller; and after the controller receives the laser power-on state signal and the close state signal, the controller sends a laser starting signal to the laser so as to control the laser to emit laser light, and outputs a control signal to control the electric-magnetic door lock to enter a locking state. The controller controls the laser to emit the laser light and controls the electric-magnetic door lock to enter the locking state only if the controller receives the laser power-on state signal and the close state signal, so that the laser is safely controlled, other people are prevented from beinginjured accidently, and the electric-magnetic door lock is accurately controlled.

The invention discloses an intelligent flying object target system.The intelligent flying object target system is composed of a throwing object (1), a target (2), an object sensing unit (3) and a processing unit (4).The throwing object (1) is an object in a certain shape and with certain weight; the target (2) is a thin plate with the hook surfaces or the flat surfaces, the surfaces are in polygonal shapes, arc shapes, circular shapes or the combination of polygonal shapes, arc shapes and circle shapes, the hook face or the flat face, facing a throwing person, of the thin plate serves as the thrown target face, and the other hook face or the other flat face serves as the back face; the object sensing unit (3) is a sensing part capable of detecting closing or contacting of the throwing object (1); the processing unit (4) can receive electric signals and process the electric signals; the object sensing unit (3) is placed on the thrown target face side of the target (2) and electrically connected with the processing unit (4); when the throwing object (1) is thrown to get close to or make contact with the object sensing unit (3), the object sensing unit (3) generates the electric signals and sends the electric signals to the processing unit (4); in this way, and the processing unit (4) can detect arrival of the throwing object (1) and display information so that the reminding effect can be achieved, and the entertaining effect and the like can be achieved.

An object of the present invention is to provide a kitchen waste disposer in which the opening and closing operability of a cover is improved and is easy to use. The kitchen garbage disposer of the present invention is provided with: a treatment bucket (1) for feeding kitchen garbage; a machine cover (31) covering the treatment bucket; and a main body (33) in which the treatment bucket is arranged. In addition, it is also provided with: a closing device (15) for closing between the cover and the main body; for releasing the connection between the cover and the main body realized by the closing device A device (16) for releasing the closed state; and when the closed state between the cover and the main body realized by the closing device is released, automatically opening the cover from the main body The opening device (11). In this way, by manipulating the release device, the cover can be automatically opened, thereby improving the opening and closing operation performance of the cover.

The invention discloses a method, device and system for logging in a website in a public network. The method for logging in the website in the public network comprises following steps that a mobile terminal device accesses the website in a first network, wherein the first network is a wireless local area network; a login request is produced in a website login device; the login request is transmitted to a website server for first verification by a communication operator through utilization of a second network; verification information is produced by the website server after the first verification is passed; the verification information is transmitted to the mobile terminal device by the second network; the mobile terminal device receives the verification information and transmits the verification information to the website server by the first network; and the website server receives the verification information transmitted by the first network and compares the verification information with the verification information previously sent by the website server. According to the method, the device and the system, a special communication line is only used for transmitting information with relatively low amount of information, such as a password; and the excessive communication cost will not be increased.

The invention provides a nurse station management machine with intelligent control, and belongs to the technical field of nurse station management machines, and the nurse station management machine comprises a bottom plate, a box body assembly, a display assembly and an unlocking assembly; according to the invention, through the arrangement of the intelligent control assembly and the unlocking assembly, the virtual electronic lock is used for virtually locking the display assembly, the security password module is used for locking the display assembly in a password manner, and an operator can unlock the virtual electronic lock and the security password module by conveying digital passwords and fingerprints, unsafe conditions caused by misoperation of irrelevant personnel are avoided; through the arrangement of the intelligent control assembly and the display assembly, the data acquisition module acquires data information of each sickbed, the data information comprises patient information, temperature and humidity in a ward, air conditioner operation data, patient calling information and the like, and the display screen adopts an independent split screen to display a single sickbed, the display information of the display screen is patient information, temperature and humidity in a ward, air conditioner operation data and the like, so that an operator can conveniently know specific information of patients in each sickbed in real time.

The invention relates to the technical field of mixers, particularly to a multifunctional food mixer which comprises a machine seat, a machine head mounted on the machine seat, and a plurality of processing assemblies which can be connected to the machine head in a transmission manner and used for treating food, wherein a rotary connection seat consisting of an L-shaped clamping slot is arranged on the machine seat; a rotary connection head consisting of an L-shaped clamping slot is arranged on the machine head; after the rotary connection head is put into the rotary connection seat, the rotary connection head and the rotary connection seat rotate by a preset angle relatively, so that the machine head can be conveniently connected to the machine seat for locking; after the rotary connection head and the rotary connection seat rotate by the preset angle relatively in the opposite directions, the machine head is pulled out of the machine seat, and can be conveniently unlocked and separated from the machine seat. The multifunctional food mixer has the function of processing various food, and further has the advantages of long service life and higher safety.

The invention provides a double-tractor safety elevator used outside an old residential building. The double-tractor safety elevator used outside the old residential building comprises a protective hood, a machine room, guide rails, an elevator car, a first tractor, a base, a second traction mechanism, a buffering mechanism, a control cabinet and an optoelectronic switch sensor. The first tractor,the second tractor, the buffering mechanism and the optoelectronic switch sensor are arranged, and the first tractor and the second tractor are adopted so that when one tractor breaks down, normal operation of the elevator can be ensured, and unsafe situations are avoided when one tractor breaks down; when the elevator car suddenly falls down, a buffering plate makes contact with buffers, and airsprings are matched with the buffers to buffer the impact force of the elevator car, so that the buffering effect of the elevator is improved; and a distance value is set on the optoelectronic switchsensor, and the optoelectronic switch sensor sends an electric signal to a control cabinet to stop the elevator car from operating when the distance between the elevator car and the optoelectronic switch sensor reaches the set value, so that the phenomenon that the elevator car impacts the roof is effectively avoided.

The invention discloses a large-tonnage automobile loading lift, and relates to the field of automobile lifts. The large-tonnage automobile loading lift comprises a lift car and a lift shaft, guide blocks are fixed on the two sides of the lift car, guide rails are fixed on the two sides in the lift shaft, a traction rope is mounted at the top of the lift car, an automobile is loaded in the lift car, and locking assemblies are arranged on the two sides in the lift car. The locking assemblies and limiting assemblies are arranged, first air cylinders operate, and piston rods push clamping blocks to clamp the two sides of an automobile tire located in a positioning groove, so that an automobile is prevented from sliding; two second air cylinders operate, the piston rods can push limiting plates to upwards abut against the position of an automobile chassis, the friction is increased, and the automobile deviation is prevented; and meanwhile, an air pump operates, an air exhaust main pipe exhausts air to enable air exhaust branch pipes and multiple suction grooves to exhaust air, thus the suction grooves attached to the automobile chassis can further adsorb and fix the automobile, automobile loading and transportation are safer and more stable, and the situation that the automobile is not safe enough in the lift car is avoided.

The invention relates to a welding processing technology for a copper pipe of an air conditioner condenser,which uses a welding processing device for the copper pipe of the air conditioner condenser. The welding processing device for the copper pipe of the air conditioner condenser comprises a bottom plate, a moving mechanism, an adjusting clamping mechanism, a fixing mechanism and a pushing mechanism. According to the adjusting and clamping mechanism, the U-shaped copper pipe only needs to be placed in a first clamping groove plate and then is conveniently matched with the moving mechanism, the angle of the U-shaped copper pipe is adjusted, and the phenomenon that safety cannot be guaranteed when the U-shaped copper pipe and a condenser copper pipe connecting piece plate are welded in a manual mode is avoided; and meanwhile, an I-shaped plate is adopted to be matched with a baffle, so that the position between a first moving plate and a second moving plate after angle adjustment is completed is determined, welding forming of a next set of condenser copper pipe connecting piece plates with the same angle is facilitated, and the complexity that adjustment needs to be conducted each time before use is avoided.

The invention relates to the field of electrician training, in particular to a practical training table for electricians. The practical training table for electricians comprises a practical training table body, wherein a panel is articulated with the rear side of a table board of the practical training table body, and an articulated shaft is located in the left-right horizontal direction; a powersupply for practical training is arranged at the upper part of the panel, and a detachable mesh plate is arranged on the panel; after the panel is opened along the articulated shaft, the panel is connected with the practical training table body through a first tensioning assembly, and the first tensioning assembly is located on the rear side of the articulated shaft; after the panel is closed along the articulated shaft, the panel and the practical training table body are connected through a second tensioning assembly, and the second tensioning assembly is located on the front side of the articulated shaft. The practical training table for electricians has the advantages of being better in safety and convenient to operate and low in probability of damage during carrying.

The invention discloses an agile type bicycle brake structure, comprising a shaft casing, a rotary shaft, an expanding brake device, a transfer bar, a connector, a transmission arm, a hex nut, a frame fixing end, an upper return spring, steel balls, an inner expanding brake sheet, an expanding brake shoe, a lower return spring, an expanding brake box, a brake box cover and an eccentric shaft, wherein the shaft casing is connected with the rotary shaft; the rotary shaft is fixed on the expanding brake device; the transmission arm is located at the right side position of the expanding brake device; the connector is installed on the transfer bar; the upper return spring is fixed at the position above the steel balls; the brake box cover is arranged at the left side position of the expanding brake box. The interior of the agile type bicycle brake structure is made of an alloy material, the service life is long, the steel ball material is good and is not likely to break, the expanding brake shoe is good in quality and is not likely to wear, the problem of high cost is avoided, and the transmission effect of the inner expanding brake sheet is good, the response speed is rapid, prompt parking is realized, the practicability is more remarkable, and bicycling is safer and more reliable.