38results about How to "Solution does not work" patented technology

The invention provides a machine vision-based pointer type meter reading recognition method and device. According to the method and device, the complete dial plate image of a pointer type meter to be recognized is acquired; the pointer straight line equation of straight lines where a pointer is located is established; segmentation is performed, so that n sub-images are obtained; the n sub-images are matched with a feature database, so that m matching sub-images are determined; the center pixel coordinates of the m matching sub-images are determined; when m is not 0, an indication number corresponding to a sub-image corresponding the enter pixel coordinate of a corresponding straight line closest to the pointer straight line equation is determined as an indication number closest to the position of the pointer according to the m center pixel coordinates; the pixel coordinates of a point to be verified are determined and are converted into actual spatial coordinates; an image acquisition device is controlled to move to the actual spatial coordinates to acquire the final dial plate image of the pointer type meter to be recognized; and the reading of the pointer type meter to be recognized is obtained through using a distance method according to the final dial plate image.

Disclosed is a dedicated clamp for curtain wall doors and windows metal insulated profile tensile tests; the upper clamp is shaped as an inverted T; the upper part of the clamp is rotatably connected with a suspended frame through a pin shaft and a lathe dog; the top part of the suspended frame is connected with an upper screw rod and an adjusting handwheel; the two shoulder parts of the upper clamp are connected with a pair of replaceable upper clamping plates which are shaped as an inverted T; a triangular jack is arranged on each upper clamping plate; the triangular jack is matched and insertedly connected with a triangular bolt; one end of the triangular bolt is provided with a pin head; the cross-section of the insertion rod of the bolt is a triangle corresponding to the triangular jack; the lower clamp is T-shaped; the bottom part of the lower clamp is connected with a lower screw rod and an adjusting handwheel; both shoulder parts of the lower clamp are connected with a pair of replaceable lower clamping plates; a triangular jack is arranged on each lower clamping plate; and the triangular jack is matched and insertedly connected with the triangular bolt. The invention solves the problem that the traditional clamp models are not universal and is easy and fast to use; besides, the invention effectively fixes the location of the profiles and enables the upper clamp and the lower clamp to be in the same vertical line to ensure the vertical alignment of the upper clamp and the lower clamp so as to guarantee the accuracy of the test data.

The invention provides a vehicle keyless entry and starting system and method based on Internet of vehicles. The system comprises a cloud end, at least one vehicle end and at least one intelligent terminal. The cloud end comprises a trusted cloud server, a certificate server and a third safty module; the vehicle end comprises a vehicle entering and starting control module, a vehicle end short-range communication module and a second safety module; and the intelligent terminal comprises an intelligent terminal control module, a terminal short-range communication module and a first safety module.When the cloud end, the vehicle end and the intelligent terminal carry out identity authentication, the cloud end carries out identity authentication on the vehicle end and the intelligent terminal respectively, and then the vehicle end and the intelligent terminal carry out identity authentication on the cloud end respectively. Direct mutual authentication between the intelligent terminal and the vehicle end is avoided, consumption of storage and computing resources of the intelligent terminal is reduced, and a problem that a vehicle key is not universal among vehicles of different brands issolved.

The invention provides a quantitative detection kit for a porcine circovirus type 2 antigen, belonging to the field of biotechnological detection. A hybridoma cell strain 1G9 secreting a monoclonal antibody against the porcine circovirus type 2 has an accession number of CCTCC No. C2016105. The quantitative detection kit for the porcine circovirus type 2 antigen comprises a detection antibody and an ELISA plated coated with the monoclonal antibody against the porcine circovirus type 2, wherein the detection antibody is an enzyme-labeled monoclonal antibody against the porcine circovirus type 2. The quantitative detection kit for the porcine circovirus type 2 antigen in the invention only uses one antibody as a coated and detection antibody, and is simple to prepare, low in cost, good in broad spectrum activity of the antigen, and high in sensitivity and specificity.

The invention discloses an indexable face milling blade. The face milling blade comprises a blade base body (1) and a cutting body (2) laminated on the upper surface of the cutting body (2). The indexable face milling blade approximates to be in a prismatic table shape and comprises a positioning side face (11), an upper plane (12) and a positioning bottom face (13). The projection of the edge of the positioning bottom face (13) or the extension line of the edge of the positioning bottom face (13) on a front tool face (21) intersects with the corresponding edge of the front tool face (21) or the extension line of the corresponding edge of the front tool face (21) to form a face deflection angle (23). The face, making contact with a to-be-machine piece, in the cutting body (2) is the front tool face (21). Optionally, a rear tool face (3) is arranged between the front tool face (21) and the positioning side face (11), so that the phenomenon that in edge repair grinding, a positioning side face is damaged is avoided, stabilization and long-acting of a positioning benchmark are ensured, and the cutting face milling blades and the sleeking face milling blades are universal for the same tool disc clamp grooves. The invention further provides a tool bit using the indexable face milling blades, so that the quantities and positions of the cutting face milling blades and the sleeking face milling blades are set on the tool discs with the same tool disc clamp grooves according to requirements.

The invention discloses a high-speed steel wire winding machine. The winding machine mainly comprises a main machine base, a power assembly, a large disc, a steel wire preforming device, a wire distributing disc, a straight middle rubber shell, a transmission chain and high-speed constant-tension pay-off assemblies, wherein the power assembly is fixedly arranged on the lower portion of the main machine base, and a tension-adjustable mechanical arm is fixedly arranged on the upper portion of the left side of a main machine. The a high-speed steel wire winding machine is reasonable in structuraldesign, for a weaving mode, a winding mode can completely replace the weaving mode for production, and the problems of low weaving speed, universal materials, and noise pollution reduction are solved; one machine has multiple purposes, the pay-off or cloth pay-off tension is adjusted according to production requirements, and the production modes are flexibly switched according to the order conditions, so that production of pipe structures with different types is met, investment of factory equipment cost is reduced, the land area is reduced, the maintenance cost is reduced, and manpower resources are saved.

The invention discloses an earphone jack converter for dust plugs, comprising an integrated converter body, a four-section earphone plug with the diameter of 2.5mm, and a four-section earphone jack with the aperture of 3.5mm. The four-section earphone plug with the diameter of 2.5mm and the four-section earphone jack with the aperture of 3.5mm are connected through the converter body. An ornament is arranged outside the converter body, and the conversion jack is hidden inside the ornament. Thus, the external structure is similar to a dust plug. Through the technical scheme, the earphone jack converter for dust plugs is small, simple in structure, and beautiful in shape. When not used as a converter, the earphone jack converter can be plugged into the earphone jack for a long time as an earphone jack dust plug to prevent dust from entering the inside of a mobile phone through the earphone jack. The earphone plug with the diameter of 2.5mm can be converted into a universal 3.5mm earphone jack, so that the problem that various earphones plugs are not universal is solved. The earphone jack converter is worth promoting.

The invention provides a compartment space occupancy rate detection method, device and system and a storage medium. The method comprises the steps: controlling a sound wave generation module to transmit a transmitting signal of a preset time length to a compartment to be detected; calculating the duration of an echo signal received by a sound wave receiving module, wherein the echo signal is a sound wave signal reflected back by the transmitting signal after passing through the compartment; and determining the space occupancy rate of the compartment to be detected according to the preset timelength of the transmitting signal and the duration of the echo signal.

The invention discloses a panel door lock structure which comprises a panel equipped with a locking hole and a lock cylinder protective cover and is characterized by comprising a decorative ring, wherein the lock cylinder protective cover is disposed in the locking hole of the panel; and the decorative ring sleeves the lock cylinder protective cover and covers clearance between the lock cylinder protective cover and the panel locking hole. According to the invention, a cover plate of the decorative ring can be used to shield the clearance between the panel locking hole and the lock cylinder protective cover; and based on a minimum lock cylinder size during design, a lock cylinder can be matched with locking holes in all the panels if the radial width of the decorative ring cover plate is larger than the maximum clearance between the lock cylinder and the panel locking holes in the current market. In this way, a manufacturer only needs to produce lock cylinders and matched lock cylinder protective covers of the same specifications so as to solve the problem in the prior art that panels and the lock cylinder protective covers are non-universal; matching can be achieved by consumers more easily; and a production management level and production efficiency of the manufacturer can be increased.

In order to solve the problem that a nozzle holder and a nozzle are not universal, the invention provides a multifunctional universal water spraying device for a cloth dyeing machine. The invention relates to the field of cloth dyeing machines, in particular to the multifunctional universal water spraying device for the cloth dyeing machine. The multifunctional universal water spraying device comprises a nozzle holder and a nozzle, the nozzle holder comprises a shell, the shell is in a cylinder shape with two communicated ends, the nozzle is arranged in the shell, a water inlet is formed in the shell, and a first annular block and a second annular block which are coaxial are arranged in the shell. A pressing disc is coaxially arranged on the first annular block, and a center hole is formedin the pressing disc. The nozzle comprises an inner inserting piece and an outer sleeving piece which are coaxial, the inner inserting piece is inserted into the outer sleeving piece, a pressurizinghole is defined by the inner inserting piece and the inner wall of the outer sleeving piece, a threaded hole is formed in the outer sleeving piece and used for being in threaded connection with a screw, the screw is used for abutting against the outer wall of the inner inserting piece, the inner inserting piece is in threaded connection with the inner wall of the center hole, and the outer sleeving piece abuts against the second annular block.

The invention discloses a voltage-adjustable rechargeable AAA lithium battery, which is characterized by comprising a positive electrode cover, a metal casing, a battery cell and a variable pressure circuit board. The battery cell is arranged in the metal casing, the positive electrode cover is arranged at the upper end of the metal casing, the variable pressure circuit board is arranged between the battery cell and the positive electrode cover, and the variable pressure circuit board is connected with the battery cell. The positive electrode cover comprises a metal upper cover plate, a rotating block, a plastic cover plate, a first metal link block and a second metal link block, wherein the metal upper cover plate is provided with a positive electrode cap, the metal upper cover plate is arranged on the plastic cover plate, and the rotating block is arranged between the metal upper cover plate and the plastic cover plate. A lithium battery base voltage level and a 1.5 V standard voltage level can be selecte by that left and right stroking of a metal shift fork, so that the problem that the 3.7 V, 3.2 V and 2.4 V base voltage level of the lithium battery are not common with the 1.5V conventional standard battery is solved.

The invention discloses a medical multipurpose sampling swab, a sampler, a sampling system and a control method.The sampling swab comprises a sampling head and a supporting rod, the sampling head comprises a swab crown, a connecting section and an elastic section, the elastic section is arranged on the front portion or the rear portion of a breaking groove, the connecting section is arranged between the elastic section and the swab crown, and the connecting section is arranged between the elastic section and the swab crown; the swab crown is arranged at the front part of the elastic section; the whole swab crown is ellipsoidal, the outer surface of the front half part of the swab crown is a smooth arc surface, and a plurality of sampling grooves which are distributed at intervals in the circumferential direction and concave inwards are formed in the arc surface of the outer surface of the rear half part of the swab crown; the outer surface of the swab crown is coated with a sampling material layer; and a clamping part is arranged at the tail part of the supporting rod. By synchronously improving the sampling swab, the sampler, the sampling system and the control method, the usability, universality and safety of the product are improved, digital management of the whole sampling process is achieved, sampling instruments are universalized, safe and convenient, the informatization and intelligence level is high, and sampling is efficient and reliable.

The invention discloses a side suspension type supporting device for a traction motor test. The side suspension type supporting device comprises a base, a vertical frame and a movable block, wherein the vertical frame is fixed on the base, the movable block is fixed on the vertical frame through a first fastener, a cross beam is arranged on the vertical frame, the upper end of the movable block protrudes out of the vertical frame, the lower end of the movable block abuts against the cross beam, the movable block is connected with the cross beam through a second fastener, the vertical frame is provided with side check blocks on the two sides of the movable block, the side check blocks are connected with the movable block through third fasteners, a cushion block is arranged on the side, away from the vertical frame, of the movable block, an upper suspension of the motor is fixed to the upper end of the movable block through a fourth fastener, and a lower suspension of the motor is fixed to the cushion block through a fifth fastener. On the basis that the movable block is fixed to the vertical frame, secondary reinforcement is carried out through the side check blocks and the cross beam movable block, the effect of preventing the movable block from tipping forwards and backwards or left and right is achieved, the whole supporting device is safer and more reliable, the movable block is an independent component, and the side suspension type supporting device can be suitable for motors of different series just by configuring the movable blocks of different specifications.