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64results about How to "Ensure stable and reliable" patented technology

Electric power data multi-way communication system and multi-way centralized meter reading system

The invention discloses an electric power data multi-way communication system. The electric power data multi-way communication system comprises a main station terminal, a PLC (programmable logic controller) network, a centralizer and a meter, wherein the main station terminal, the centralizer and the meter are subjected to communication and coupling through the PLC network. The electric power data multi-way communication system further comprises a centralizer end module arranged at the centralizer end as well as a meter end module arranged at the meter end; the centralizer end module is connected with the meter end module through an electric power line protocol. The invention also discloses a multi-way centralized meter reading system. According to the electric power data multi-way communication system and the multi-way centralized meter reading system disclosed by the invention, communication modules are intelligent nodes, and intelligent modules interact for instant networking, and the networking is not controlled by the centralizer; real-time, rapid and stable communication is achieved; the antidamping and noise resistant capabilities of the systems are improved further on the networking mechanism based on a physical layer by fully utilizing the intelligent characteristic of a chip of the physical layer; the technical difficulties of network time and sequence, network conflict, network efficiency, effective detection of repeated data packets and the like are solved based on the chip CSMA (carrier sense multiple access), and the stability and reliability of communication are ensured.
Owner:WAHLAP TECH CO LTD

Method and system for converting ladder diagram program into instruction list program and compiling instruction list program

The invention discloses a method and system for converting a ladder diagram program into an instruction list program and executing compiling and interpretation of the instruction list program. According to the ladder diagram conversion method, energy flow classes and auxiliary nodes are introduced according to the characteristics of edition and execution of a ladder diagram, the class is set on each diagram peak, and an auxiliary node is added; the serial and parallel connection relationship is judged according to the out-degree and in-degree of the class and the auxiliary node where an element is located. After the ladder diagram is converted into the instruction list, a PLC immediate compiling method combined with compiling and interpretation and a divide-and-conquer method concept are adopted, a compiling front end and an interpretation rear end are designed independently, and in combination with a GCC rear-end structure, a PLC compiling system specific to a special machine model is generated. The method and system for converting the ladder diagram program into the instruction list program and compiling the instruction list program have the advantages that the ladder diagram program with a complex logic structure can be accurately and rapidly converted into the instruction list program, and in the conversion process, grammar error checking is carried out on the program, and the common errors like an open circuit, a short circuit and a bridge circuit are excluded, so that the correctness of the generated instruction list program is guaranteed.
Owner:CENT SOUTH UNIV

Locking and unlocking device of mask template box

The invention belongs to the field of TFT (thin film transistor) lithography equipment, and in particular relates to a locking and unlocking device of a mask template box. The locking and unlocking device comprises a template fork mechanism, a clamping mechanism and a template box lifting mechanism. The template fork mechanism comprises a left guide rail; a left template fork which is arranged on the left guide rail, and can linearly and reciprocally move; a right guide rail; a right template fork which is arranged on the right guide rail, and can linearly and reciprocally move; a synchronous belt driving adverse movement of the left template fork and the right template fork; and a diver driving the synchronous belt. The clamping mechanism comprises jack catches in one-to-one correspondence with lock fasteners, the template box lifting mechanism supports the template box from the lower part of the template box, and the template box lifts up or down with the template box lifting mechanism. A low-cost micro cylinder and the low-cost synchronous belt are used as transmission parts, protection baffle plates of the template box are increased, locking and unlocking are performed in a stepwise manner to ensure the process is stable and reliable; and in order to ensure the mask work environment, a telescopic seal box is introduced to provide a clean environment.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Optical transmitting and receiving integral single-fiber bidirectional device and assembling fixture thereof

The invention relates to the technical field of laser communication, in particular to an optical transmitting and receiving integral single-fiber bidirectional device used for the optical communication and an assembling fixture thereof. The center hole of the mortise holder of the optical transmitting and receiving integral single-fiber bidirectional device is cooperatively provided with a ceramic mortise, a ceramic sleeve and a sleeve holder in an interference mode; the upper end of the mortise holder is provided with a 45-degree plane and a 0-degree plane, wherein the 45-degree plane is used for arranging a 45-degree light-splitting sheet, and the 0-degree plane is used for arranging a 0-degree light filter; the upper end of the center hole of the mortise holder is provided with a light emitting hole of which one section of the diameter is enlarged; the light emitting hole and the 0-degree plane are cross to form a side-surface light emitting gap; the 45-degree light splitting sheet and the 0-degree light filter are respectively bonded and fixedly arranged on the 45-degree plane and the 0-degree plane; and the mortise holder with the 45-degree light splitting sheet and the 0-degree light filter is axially inserted into a square bracket. The optical transmitting and receiving integral single-fiber bidirectional device and the assembling fixture have the advantages of simple structure, low manufacture technology difficulty and low cost, and the emitted light power or the receiving sensitivity is easy to couple.
Owner:江苏飞格光电有限公司

Method for obtaining intelligent device ID online

The invention discloses a method for obtaining an intelligent device ID online, and belongs to the field of intelligent device communication. The method comprises the following steps: step 1: initializing a network connection of a device; step 2: sending, by the device, an identity identification request comprising a wireless communication signal to a server; step 3: performing, by the server, anti-data packet adhesion processing according to the identity identification request to obtain a qualified request; step 4: judging, by the server, whether the wireless communication signal in the qualified request is present and authorized, and if yes, controlling, the server, a cloud platform to send a unique device ID number to the device by using a distributed ID generation algorithm; if not, ending the present request, and skipping to the step 2 to continue the request after waiting for an interval time; and step 5: receiving, by the device, the device ID to complete the online acquisition.By adoption of the method disclosed by the invention, by overcoming the data packet adhesion and ensuring the uniqueness of the device ID, the problem that the existing device adopts offline identityauthentication, resulting in low communication security is solved, and the effects of improving the security of the device communication and improving the production efficiency are achieved.
Owner:河南华码信息科技有限公司

Electric transmission line warning sign hanging device

InactiveCN106409135AEnsure stable and reliableReliable anti-shedding effectSignsEngineeringElectric control
The invention discloses an electric transmission line warning sign hanging device which comprises a device base, wherein the device base is matched with a buckle cover, the device base and the buckle cover are both connected with a concrete pedestal, a sleeve is arranged at the upper portion of the device base, one side of the sleeve is hinged to a wiring door through a hinge, an oil cylinder is arranged in the sleeve, the oil cylinder is matched with a lift rod, the lift rod is in slide match with the sleeve, the top of the lift rod and a cantilever are of an integrated structure, a hanging frame is arranged at one end of the cantilever, a group of connection screws are arranged on the hanging frame in a penetrating mode, double nuts are in thread connection with the two ends of the connection screws, the middle of the hanging frame is detachably connected with a middle warning sign, and the two sides of the hanging frame are detachably connected with a lateral warning sign. The electric transmission line warning sign hanging device can be lifted up and down to be adjusted, can be operated in an electric control mode, saves labor and is simple and large in warning range; as all passengers in a vehicle can conveniently observe the warning signs when the vehicle passes, the warning effect of the electric transmission line warning sign hanging device is good.
Owner:YANTAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1

Side surface fast mounting mechanism for photovoltaic bracket

The invention discloses a side surface fast mounting mechanism for a photovoltaic bracket. The side surface fast mounting mechanism comprises an inclined plane pressure block, an inclined plane base, a connecting piece, a bolt and a nut, wherein hanging hooks are arranged on the two sides of the upper part of the inclined plane base, and the inclined plane base is mounted on the connecting piece through the hanging hooks; the inclined plane pressure block is placed on the inclined plane of the inclined plane base, a stepped hole is formed in the inclined plane pressure block, and a spring is placed in the stepped hole; a waist-shaped hole is formed in the position of the inclined plane base, which corresponds to the connecting piece; and the bolt sequentially penetrates through the connecting piece, the inclined plane base, the inclined plane pressure block and the spring, and the upper end of the bolt is connected with the nut. The side surface fast mounting mechanism disclosed by the invention is simple in structure, low in cost and fast and convenient in mounting process; a spring structure is adopted for realizing fast mounting of the inclined plane pressure block in a preset position, so that the inclined plane pressure block can be conveniently and reasonably clamped into a groove of a guide track, the spring in a locked state can be finally compressed into a countersunk hole, and the reliability and aesthetics in locking can be ensured; the square-neck bolt and the nut are adopted, thereby effectively preventing the following rotation and improving the mounting efficiency; and a side-surface fast mounting piece base can realize adjustability in height during the mounting process, thereby solving the problem that a roof is uneven during actual mounting.
Owner:SAMIL POWER

Deep-hole numerical control fine cold-welding equipment

The invention provides deep-hole numerical control fine cold-welding equipment which comprises a welding machine track, a welding machine, a long rod welding torch, a self-correcting fixed-distance rod and a lifting type torch frame, wherein the welding machine travels on the welding machine track; the welding machine is connected to one end of the long rod welding torch; the lifting type torch frame is used for supporting the long rod welding torch; the self-correcting fixed-distance rod is arranged at the lower end of the other end of the long rod welding torch; the lower end of the fixed-distance rod is provided with a smooth round head or a mounting traveling ball; a torch head at the other end of the long rod welding torch is arranged vertically; a nozzle faces downwards; and a wire outlet end of a wire feeding guide pipe is horizontally opposite the outlet side of the nozzle. The deep-hole numerical control fine cold-welding equipment solves the problem that an outer wall and aninner hole are not concentric through the self-correcting fixed-distance rod, and solves the problem of arc voltage stability through the lifting type torch frame. In addition, the angle setting of the wire feeding guide pipe ensures the stability of welding forming.
Owner:郑州煤机综机设备有限公司

Air door linked car arrester for monorail crane

The invention discloses an air door linked car arrester for a monorail crane. The air door linked car arrester comprises a door frame, a hanging anchor rod, a car arrester body, a monorail crane beam,and further comprises an interlocking rope and a transmission rope, wherein air doors capable of being opened and closed are symmetrically mounted inside the door frame; a first universal fixed pulley is arranged on the side wall of one side of the door frame, and a second universal fixed pulley is arranged on the upper part of the door frame; the hanging anchor rod is arranged in front of the air doors, and one side, close to the air doors, on the hanging anchor rod is provided with a third universal fixed pulley; the car arrester body is rotatably mounted on the hanging anchor rod; and themonorail crane beam is perpendicular to the air doors, and is positioned below the car arrester body. The air door linked car arrester for the monorail crane is simple in operation, is safe and reliable in performance, solves the technical problems about how to establish the air doors in a monorail crane transportation lane way and to protect air doors of the monorail crane, effectively prevents the air doors from being collided and damaged by the monorail crane in a transportation process, and guarantees stability and reliability of a mine ventilation system.
Owner:新汶矿业集团有限责任公司鄂庄煤矿
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