30results about How to "Reduce the amount of design" patented technology

An embedded motion control card based on an ARM chip in the technical field of motion control card design. In the present invention, the main control module is connected to the FPGA module, the expansion interface module, the memory module, the watchdog and the reset system module, and the power supply module respectively. The FPGA module is connected to the system clock module, GPIO module, JTAG interface module, dual-port communication module, DA module, and AD module respectively. The dual-port communication module is connected to the host computer through the PC104 bus module, and is responsible for the communication between the main control module and the host computer. Communication; the input and output signals in the DA module, AD module, and GPIO module are connected through the input and output signal interface modules and external servo drivers and switches; the present invention adopts the ARM microprocessor as the core component to realize high-speed and high-precision motion control. The number of components is reduced, the size is reduced, and the FPGA module is used to decode and plan the hardware address.

The invention provides a method for designing key parameters of strip-type goaf control filling. The method comprises the following steps: Step 1. Sampling the coal and rock mass left over in the strip-type goaf, and testing to obtain coal rock mass The physical and mechanical parameters of the body, the physical parameters include the disintegration coefficient of coal and the angle of repose of the accumulation body; step 2, determine the maximum stripping depth of the remaining coal pillar according to the physical and mechanical parameters of the measured coal rock mass; step 3, according to the remaining The maximum peeling depth of the coal pillar determines the safety factor of the remaining coal pillar; step 4, determines whether the goaf needs to be filled and treated according to the safety factor of the left coal pillar, and determines the filling treatment method and control filling parameters; the method of the present invention makes full use of the goaf The bearing performance of the remaining coal pillars in the area improves the filling effect of the strip goaf and reduces the filling cost of the strip goaf.

A tyre mounting / demounting tool assembly for a tyre mounting / demounting machine comprises a carrier unit (100) having a first as well as a second end (112, 114) and being provided with first support means (120) for receiving a bead breaker tool (200) and second support means (130) for receiving a mounting support tool (300), a bead breaker tool (200) for loosening the tyre bead (TB) from the rim edge (RE) of a wheel (W), having a first as well as a second end (202, 204), the first end (202) is provided with at least one bead breaker tool element (210) and the second end (204) is adapted to be mounted to the carrier unit (100) via the first support means (120), and a mounting support tool (300) for supporting the mounting of at least one tyre bead (TB) of a tyre (T) to be mounted on a rim (R), the mounting support tool (300) having a first as well as a second end (302, 304), the first end (302) is provided with a mounting support tool ele-ment (310) and the second end (304) is adapted to be mounted to the carrier unit (100) via the second support means (130). The shape of the bead breaker tool element (210) and the shape of the mounting support tool (300) are at least partially congruent to each other.

The invention is a small barcode decoding device, the shell is set in a flat shape, and the thickness is reduced. The housing is provided with an illumination window that deflects toward the lens opening, which can guide the illumination light source to the front of the imaging component, which is beneficial to the imaging of the barcode in the barcode image, and can meet the barcode image acquisition without setting a separate illumination lens lighting needs, thereby reducing the size of the illuminated area. The lens opening is also equipped with a stepped circular concave, which can resist the diffuse reflection of more stray light, making the image more pure when the lens collects barcode images. The main control chip itself has the ability to decode barcodes without calling a separate stored decoding program, which improves the decoding speed of barcodes and reduces the amount of device design, thereby reducing the area of ​​the circuit board and ultimately reducing power consumption.

The invention discloses an output overvoltage protection circuit for a storage battery discharge regulator, and aims to solve the problem that it is difficult to position a fault module and perform protection in an output overvoltage state by the storage battery discharge regulator which consists of multiple shunt-wound, mutually-independent and totally-consistent storage battery discharge regulation modules. Instead, the output overvoltage protection circuit provided by the invention can realize output overvoltage protection on the storage battery discharge regulator by fault positioning through a step of determining the output current of each shunt-wound storage battery discharge regulation module in the output overvoltage condition. According to the method, the output overvoltage protection circuit adopts a resistor, a capacitor, an integrated operational amplifier and other conventional components, and the functions of fault positioning, overvoltage protection, state locking and unlocking and the like are realized; meanwhile, the circuit is simple and creative, wide in adaptability, small in scale, low in complexity, low in implementation cost and high in reliability; in addition, the signals needed to be processed are simple; the circuit can be reused with other protection circuits; and a digital logic device and a digital storage chip are not required.

The invention discloses a method for controlling the amount of forging deformation of a complex plate-type die forging. By setting a step structure on the preform model and the final forging model, when the forging is formed, the corresponding step structure of the final forging forming mold and the preform The step structure set on the model forms two or more deformation fulcrums at the corresponding step structure positions between the final forging forming die and the preform; by setting multiple deformation fulcrums in the insufficiently deformed area, the prefabrication can be greatly increased. The amount of deformation in the area where the deformation amount is insufficient during billet forming can greatly reduce the design amount of the remaining block of the forging while ensuring the amount of deformation during the forming process of the forging, reducing the raw materials required for forging forging and reducing the forging cost.

The invention discloses a window frame corner splicing material, which comprises a main window frame sectional material, a sub window frame sectional material and a corner sectional material, wherein the width of the main window frame sectional material is greater than the width of the sub window frame sectional material; the corner sectional material consists of a main sectional material and an auxiliary sectional material; each of the main sectional material and the auxiliary sectional material has more than one model; the main sectional material and the auxiliary sectional material form a dismountable connection structure; a first clamp groove anastomotic with the sub window frame sectional material is formed in the auxiliary sectional material; a second clamp groove is formed in the main sectional material and the auxiliary sectional material; and the second clamp grooves and the main window frame sectional materials are mutually anastomotic. The window frame corner splicing material has the advantages that the corner sectional material is formed by combining the main sectional material and the auxiliary material; the main sectional materials and the auxiliary sectional materials of different specifications can be selected according to the dimension of a main window frame and a sub window frame; the model number of the sectional materials is reduced; the design quantity is reduced, so that the design cost is reduced; and the waste reduction is also facilitated.

The invention discloses an intelligent interface device of a digital transformation substation switch, which comprises the following functional plug-ins: an AC sampling board which can be accessed into voltage, current and related direct current component of the switch; a POWER power supply communication board which is accessed into a power supply for realizing network sharing of sampled data, tripping and closing operation and alternate locking of a GOOSE network, communication with a background and a dispatcher and access of the state monitoring quantity of the switch; an I / O board which isused for the access of the traditional switching quantity and the state quantity and the outward control and operation; an OPA operation panel which can realize the control of a tripping and closing coil of the switch and the locking function; and a CPU board which is used for realizing the functions of data calculation, logic judgment, outward communication, liquid crystal communication and the like of the device and simultaneously has the function of a bus backboard, wherein all the boards are inserted in the bus backboard; and a liquid crystal board, wherein the data display of the liquid crystal board is connected with the CPU through a serial port. The device can realize the intelligentization and the digitalization of the switch, reduce the using number of equipment and reduce the cost.

The invention provides a key parameter design method for controlled filling of a room-and-pillar goaf. The method comprises the following steps: Step 1. Sampling the coal and rock mass left over in the room-and-pillar goaf, and testing to obtain the coal rock The physical and mechanical parameters of the body, the physical parameters include the disintegration coefficient of coal and the angle of repose of the accumulation body; step 2, determine the maximum stripping depth of the remaining coal pillar according to the physical and mechanical parameters of the measured coal rock mass; step 3, according to the remaining Determine the safety factor of the remaining coal pillar by the maximum stripping depth of the coal pillar; step 4, determine whether it is necessary to fill the room-and-pillar goaf according to the safety factor of the remaining coal pillar, and determine the filling treatment method and the key filling parameters for the control of filling treatment. The inventive method makes full use of the bearing capacity of the left coal pillar in the goaf, improves the filling effect of the room-and-pillar goaf, and reduces the filling cost of the room-and-pillar goaf.