Multitask dispatching method for combined navigation handler and combined navigation handler

A multitask dispatching method for combined navigation handler comprises steps of: (1) setting a synchronizing pulse synthesizer and an interrupt signal synthesizer; (2) executing a serial data receiving task of an inertial measurement unit; (3) executing a satellite navigation data receiving task; (4) executing a calculating task of a dual sub sample strapdown inertial navigation; (5) executing acombined navigation calculating task based on Kalman filtering method. The combined navigation handler comprises a main control unit provided with an interrupt manager, an interrupt signal synthesizer, a synchronizing pulse synthesizer, a universal input and output interface unit, a serial port 0, a serial port 1 and a serial port 2. The invention is sample, compact in structure and simple to operate, capable of improving utilization rate of combined navigation handler and integral efficiency.

Multitask dispatching method for combined navigation handler and combined navigation handler

A multitask dispatching method for combined navigation handler comprises steps of: (1) setting a synchronizing pulse synthesizer and an interrupt signal synthesizer; (2) executing a serial data receiving task of an inertial measurement unit; (3) executing a satellite navigation data receiving task; (4) executing a calculating task of a dual sub sample strapdown inertial navigation; (5) executing a combined navigation calculating task based on Kalman filtering method. The combined navigation handler comprises a main control unit provided with an interrupt manager, an interrupt signal synthesizer, a synchronizing pulse synthesizer, a universal input and output interface unit, a serial port 0, a serial port 1 and a serial port 2. The invention is sample, compact in structure and simple to operate, capable of improving utilization rate of combined navigation handler and integral efficiency.

Embedded sleeve fixer

The invention relates to the field of steel bar binding construction, in particular to an embedded sleeve fixer. Comprising a thin-wall stainless steel shell (1) and a bolt (2), the device comprises a thin-wall stainless steel shell (1), a spring (3), a screw rod (4), a screw rod fixer (5) and a horizontal fixing rib (6), and the thin-wall stainless steel shell (1) is formed by welding a top cover, a barrel and a bottom cover; the upper part of the screw rod (4) is provided with a nut, and the lower part is pointed, so that the screw rod can conveniently drill into a template; and the horizontal fixing ribs (6) are connected with the outer cylinder body and the inner fixer in a welding manner. The fixator does not need to be assembled when in use, is convenient to mount and dismount, and can be recycled; a traditional fixing mode is replaced, and the problems that leakage hidden danger is caused by iron wires, and iron nails need to be manually processed are solved.

Bidirectional layered sample pressing device for preparing consolidation test sample and sample pressing method thereof

The invention discloses a bidirectional layered sample pressing device for preparing a consolidation test sample and a sample pressing method thereof. The device is formed in the following manner: the inner wall of a guide cylinder is sleeved with a pressurization piston, the bottom surface of the flange of the pressurization piston is joined with the top of the guide cylinder, a cutting ring groove is formed in a position below the pressurization piston on the inner wall of the guide cylinder, the top of a cutting ring is embedded in the cutting ring groove of the guide cylinder, and the diameter of the cutting ring is equal to that of the pressurization piston; the cutting edge of the cutting ring is embedded in the hollow cavity of a circular ring-shaped projection on the top of a base; one or two disk-shaped cushion blocks are embedded in the inner cavity of the cutting ring; the distance between the bottom surface of the flange of the pressurization piston and the lower end face of ...

Bricklaying-free construction method for closing post-cast strip of basement outer wall in advance

The invention relates to a basement outer wall post-cast strip pre-closing bricklaying-free construction method. Comprising the steps that 1, an outer wall post-cast strip prefabricated slab is constructed; step 2, blocking the post-cast strip of the basement exterior wall by adopting a C40 concrete precast slab with the thickness of 100 and the size of 500 * 1,200 mm; 3, a hanging ring 10 on the prefabricated plate is cut off after the prefabricated plate is hoisted, and after waterproof mortar is used for leveling, the upper prefabricated plate is hoisted; step 4, connecting the concrete precast slab with the basement outer wall, and tying the concrete precast slab with a basement outer wall horizontal bar by using an 8-shaped steel bar on the concrete precast slab; 5, waterproof mortar is laid between the prefabricated slabs for leveling; sixthly, the joint of the concrete prefabricated slab and the basement outer wall is smeared with waterproof mortar to form a 45-degree oblique angle ...

Development emulate system of multiway transmission data bus

A simulation system for developing multiplexing data bus 1553B is composed of IBM-compatible machine and 1553B simulation card inserted in the machine. Said 1553B bus simulation card contains communication management CPU, 1553B communication protocol processor, program memory, data memory, data exchange buffer and dual-port RAM. Its functions include simulating the bus controller on 1553B bus, bus monitor and remote terminals, presetting up the simulation data and running state of system, real-time analysis, statistic, storage and display of bus communication process and result, and displaying, storing and printing said process and result.

Floor heating pipe distribution auxiliary device

A floor heating pipe distribution auxiliary device comprises a plurality of fixing components (2) for fixing a floor heating pipeline (1) on the ground, the fixing components (2) are distributed along the floor heating pipeline (1) at equal intervals, and the floor heating pipe distribution auxiliary device is characterized in that each fixing component (2) comprises an inverted-U-shaped clamping base (21) and a pointed cone (22) fixedly connected to the lower end of the inverted-U-shaped clamping base (21), the inverted-U-shaped clamping base (21) is connected to the outer side of the floor heating pipeline (1) in a clamped mode, and the pointed cone (22) is fixedly connected to the lower end of the inverted-U-shaped clamping base (21). The pointed cone (22) is inserted into the ground, the pointed cone (22) is covered with a protective sleeve (23), the protective sleeve (23) is slidably connected to the outer side of the lower end of the inverted-U-shaped clamping base (21) in a sleeving ...

Construction steel bar cutting device

A construction steel bar cutting device comprises a working plate (1), a measuring mechanism and a clamping mechanism and is characterized in that a mounting groove is formed in the working plate (1), a lower cutter block (11) is fixedly connected to the mounting groove, the measuring mechanism comprises a first fixing plate (2) and a second fixing plate (3), the bottom end of the first fixing plate (2) is fixedly connected with the working plate (1), and the bottom end of the second fixing plate (3) is fixedly connected with the clamping mechanism. The top end of the first fixing plate (2) and the top end of the second fixing plate (3) are fixedly connected with a top plate (4), the clamping mechanisms comprise lower clamping plates (12), the bottom ends of the lower clamping plates (12) are fixedly connected with the working plate (1), and the upper portions of the lower clamping plates (12) are fixedly connected with a plurality of sliding rods (13). The construction steel bar cutting ...

Development emulating system of multi-way transmission data base

Adjustable independent supporting device for post-cast strip

The invention relates to the technical field of concrete construction, in particular to an adjustable independent supporting device for a post-cast strip, which comprises a top support (1), a connecting pipe (2), a base (3), a supporting steel pipe (4), a bottom plate (8) and a connecting screw rod (5), an upper nut (6) and a lower nut (7); the supporting steel pipe (4) is vertically arranged, the top port and the bottom port of the supporting steel pipe (4) are respectively connected with the top support (1) and the connecting pipe (2) in an inserted manner, the connecting pipe (2) is also connected with the base (3) in an inserted manner, and the base (3) and the bottom plate (8) are fastened and connected by forming a hole in the bottom plate (8) and sequentially penetrating through the upper nut (6), the connecting screw rod (5) and the lower nut (7). The rigidity, the strength and the like of the supporting device can meet the compression resistance requirement. The supporting frame ...

Symmetrical layered sample pressing device for triaxial test sample preparation and sample preparation method

The invention discloses a symmetrical layered sample pressing device for triaxial test sample preparation and a sample preparation method. The device is mainly characterized in that outer walls at two ends of a soil sample barrel sleeve a clamping groove in an inner wall of an extension barrel; the diameter of an inner wall of a non-clamping groove part of the extension barrel is equal to the diameter of an inner wall of the soil sample barrel; cushion block external members sleeve in the extension barrel and the soil sample barrel; the cushion block external members are characterized in that the periphery of a back end of an outer cushion block is outwards raised to form a cover edge; a bulge with a thread is formed in the center of the front side of the outer cushion block; a threaded hole is formed in the center of the back of each middle cushion block; a bulge with a thread is formed in the center of the front side of the middle cushion block; the number of the middle cushion blocks ...

Post-cast strip pipe independent support and construction method

The invention relates to the field of building construction, in particular to a post-cast strip pipe independent support and a construction method. Comprising a PVC-U pipe (1), steel bars (2), a concrete base (3), a top plate, a beam formwork (4) and a steel pipe frame body (5), the PVC-U pipe (1) is vertically arranged, the steel bars (2) and the concrete base (3) are arranged at the bottom of the PVC-U pipe (1), the top of the PVC-U pipe (1) is connected with the top plate and the beam formwork (4), and the steel pipe frame body (5) is arranged in the middle of the PVC-U pipe (1). The rigidity, the strength and the like of the supporting device can meet the compression resistance requirements. The supporting frame body at the post-cast strip does not need to be supported independently and can be erected and disassembled together with the large-face frame body. The support does not need to be connected and assisted by a horizontal rod, the support distance is large, and peripheral materials ...

Method for measuring load threshold of geotechnical packing accumulated deformation state under cyclic loading

The invention relates to a method for measuring load thresholds of geotechnical packing accumulated deformation states under cyclic loading. According to the method, brick walls and sand bags are adopted to construct a filling model, so as to form a testing system along with loading equipment and a displacement sensor, and a cyclic loading test is performed on the filling model, so as to obtain a changing curve of accumulated deformation with loading times; then the changing curve of segmented single loading average deformation with the loading times is obtained through calculation, and a negative power function as shown in the specification is adopted to fit, so as to obtain a relation curve of a power exponent Pi value with the change of load levels; a function relation between the Pi value and the load levels is obtained by virtue of cubic polynomial regression, and the corresponding load levels when P is equal to 2, 1 and 0 are obtained through back calculation, so as to be used as ...