44results about How to "Realize precise positioning function" patented technology

The invention discloses a transport mechanism which comprises a base frame, two parallel transporting rails and a die holder, wherein the two parallel transporting rails are installed on the base frame, and the die holder is placed on the transporting rails and is driven by the transporting rails. The transport mechanism also comprises joining mechanisms arranged on two ends of the transporting rails; the die holder on one transporting rail is transferred to the other transporting rail by the joining mechanisms; and the two transporting rails form a circulating transmission rail. The transport mechanism can be suitable for automatically machining on multiple stations, can accurately position and can circularly convey devices.

The method for accurate positioning users in PHS system includes steps: network management through access gateway sends request for positioning user to base station controller under call region where the user current belongs to; the controller sends seeking positioning request to own base stations; base stations seek the user; the user sends request for building link to a base station; the base station reports associated position information and signal intensity of the user to network supervisor, and sends message of refusing building link to the user; the user determines whether number of refusing the said request reaches to threshold; if yes, based on information received from multiple base stations, the network supervisor calculates out user's position; otherwise, seeking other base stations to carry out steps of request for building link again. The invention realizes positioning users in PHS system in low cost and high precision.

The invention relates to a vehicle anti-theft tracking circuit based on a LoRa (long range) radio frequency technology. A power supply part of the vehicle anti-theft tracking circuit is divided into a high voltage transformation circuit and a low voltage transformation circuit, and after a vibration switch detects vibration, the low voltage transformation circuit is switched on to provide low-voltage power supply for a system. STM8L151C8 microcontroller is taken as the core to perform information interaction with a GPS / beidou double-star positioning circuit through a UART serial port and communicates with an SX1278 radio frequency circuit through an SPI, status information of the system is sent to a LoRa base station, and long-distance transmission with low power consumption is realized. An alarm interface is used for accessing a vehicle control terminal, and the terminal initiatively uploads alarm data once a vehicle is stolen. The latest vehicle position and alarm lamp status data are sent with a LoRa wireless transmission technology, so that the effects of real-time vehicle tracking, theft alarm and the like are realized, and vehicle losing is prevented.

The invention relates to a paper-plastic shaper and a shaping technology thereof. The paper-plastic shaper comprises an upper mould assembly provided with an upper mould, and a lower mould assembly provided with a lower mould. The lower mould assembly comprises a rotary table rack (101). A rotating shaft (102) is vertically installed on the rotary table rack (101). A rotary connecting disc (103) is installed at the top of the rotating shaft (102) in a sleeving mode by means of key joint. Multiple guide columns (105) are installed on the rotary connecting disc (103) in the vertical direction. A rotary table (104) is arranged on the rotary connecting disc (103) in a shelved mode and provided with connecting holes for the guide columns (105) to be inserted. Each guide column (105) is sleeved with a lubricating sleeve (106). The lubricating sleeves (106) are located between the guide columns (105) and the inner walls of the connecting holes. The paper-plastic shaper and the shaping technology thereof effectively stop stress transmission and can ensure transposition precision.

The invention discloses a semi-active mirror support and positioning system for supporting and positioning the mirror, including a mirror support system and a mirror pose adjustment system; the mirror support system includes an axial support system and a lateral support system, and The mirror pose adjustment system includes an axial mirror pose adjustment system and a lateral mirror pose adjustment system; the axial mirror pose adjustment system is used to adjust the translation of the mirror surface along the Z axis, around the X axis, and the Y axis Three degrees of freedom of rotation, including displacement actuators for axial pose adjustment, axial displacement sensors; axial support system, used to bear the axial component W*sinθ of gravity of the mirror surface, including axial fluid force actuator. Therefore, the axial support and positioning of the reflective mirror surface of the present invention are controlled and driven based on fluid pressure, which can realize the precise axial positioning function of the mirror surface.

The invention discloses a glans penis cover for circumcision, comprising a connection bridge, a partition, a one-way telescopic rod, a cavity and a pressure sensor. The cavity is arranged in the connection bridge; the partition is fixed in the center of the cavity; one end of the partition is fitted with the pressure sensor; the end of the partition, far away from the pressure sensor is fixedly provided with the one-way telescopic rod; the end of the connection bridge close to the one-way telescopic rod is in threaded connection with a cover body; the inside part of the cover body close to theconnection bridge is provided with a positioning block; the end of the cover body far away from the connection bridge is in threaded connection with a circular support; the end of a nail plate far away from the circular support is fixedly provided with an anastomotic plate; the edge of the anastomotic plate is provided with nail storage holes; the outer wall of the end, far away from the cover body, of the connection bridge is fitted with a controller. The glans penis cover for circumcision has the advantages that application safety of the glans penis cover is guaranteed, the glans penis is more convenient to use, and practicality of the glans penis cover is improved.

The present invention discloses a high-frequency resonance piezoelectric inertial drive linear displacement platform. An unsymmetrical inertial promoter formed by a base body, a first piezoelectric driver, a second piezoelectric driver, a main inertial body, an assistant inertial body obtains two effective natural vibrations consisting of reversed natural vibration and in-phase natural vibration to change the quality ratio of the base body, the main inertial body and the assistant inertial body to regulate the ratio of the reversed natural vibration frequency and the in-phase natural vibrationfrequency of the inertial promoter to be 1:2, two multi-layer stackable piezoelectric ceramics are employed as piezoelectric actuators to respectively excite simple harmonic vibrations in two inherent frequencies to allow the base body to combine an unsymmetrical vibration waveform in a resonance state, and the asymmetric sliding friction between the slide ports at two sides of the base body andguide rails at two side of a pedestal is employed to drive the inertial promoter to perform continuous linear displacement in a one-way direction along the guide rails. The high-frequency resonance piezoelectric inertial drive linear displacement platform is simple in structure and convenient to excite to further improve the integrated drive performances of a traditional inertial drive mechanism.

The invention provides an automatic leveling mechanism for a parallel transmission structure and belongs to the technical field of automatic precision adjustment. The automatic leveling mechanism aims to solve the problems that when a numerically-controlled machine tool, a numerically-controlled carving machine, a 3D printer and other devices are positioned accurately in the Z-axis direction through manual adjustment, consumed time is long, the labor intensity is high and the error of a measuring result is large in the adjusting process. A heating block is arranged in a parallel connection support. The lower end of a spray head stretches out of a spray head mounting hole in the heating block. The upper end of the spray head is fixedly connected with a spray head fixing base. The upper end of the spray head fixing base fixedly penetrates out of a through hole of a hot end assembly fixing frame. One end of the hot end assembly fixing frame is hinged to the parallel connection support. A microswitch is fixedly connected with the parallel connection support. The microswitch is located over the other end of the hot end assembly fixing frame. A gap is formed between the microswitch and the hot end assembly fixing frame. The hot end assembly fixing frame is connected with the bottom of the parallel connection support through an elastic extension mechanism. The automatic leveling mechanism is mainly applied to the numerically-controlled machine tool, the numerically-controlled carving machine, the 3D printer, a sorting system and the like.