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160results about How to "Guaranteed stability and reliability" patented technology

Overcurrent protection device and electronic equipment

The invention belongs to the field of overcurrent protection circuit design, and provides an overcurrent protection device and electronic equipment. The overcurrent protection device comprises a switch unit, an overcurrent detection unit and a switch control unit, wherein the switch unit is used for controlling a protected load circuit being connected/disconnected through on/off states; the overcurrent detection unit is used for detecting the overcurrent on a power supply path of the protected load circuit; and the switch control unit is used for maintaining the switch unit being in the on state when the overcurrent detection unit does not detect the overcurrent; when the overcurrent detection unit detects the overcurrent, the switch control unit controls the switch unit being disconnected. According to the overcurrent protection device and electronic equipment provided by the invention, the switch control unit can control the switch unit on according to the external transient triggering or internal control, and then automatically maintains the switch unit being in the on state; the device and equipment have a state latching function; and the on state of the switch unit can be maintained without external triggering, and thus, the stability and reliability of the overcurrent protection device can be ensured.
Owner:SHENZHEN JIUZHOU ELECTRIC

Wireless automatic monitoring irrigation system

The invention relates to the field of automatic agricultural irrigation, in particular to a wireless automatic monitoring irrigation system based on cellular network communication. The system comprises a control center and a plurality of control unit nodes, wherein the control center and a plurality of control unit nodes are connected by a cellular wireless network; a plurality of control unit nodes form a mesh topology structure; an industrial computer for monitoring and controlling and a coordinator for data transmission are arranged in the control center; irrigation data are acquired by the control unit nodes through sensors, and are transmitted to the control center through the cellular wireless network; and the control nodes receive control data returned from the control center through the cellular wireless network as well, and controls open and close of an electromagnetic valve after control data processing. The system can provide an automation monitoring irrigation system applicable to farmland, greenhouse and other environments, so that a user can monitor environment parameters and plant physioecologic parameters of a monitored region in real time, thereby carrying out timed automatic irrigation or automatic irrigation according to actual water demand condition of the environment.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Concrete tower drum assembly and stretching method thereof

The invention discloses a concrete tower drum assembly and a stretching method thereof. The concrete tower drum assembly comprises a foundation, a tower drum body, an adapter, a first prestressed tendon and a second prestressed tendon. The foundation is suitable for being arranged below the ground; the tower drum body is arranged on the foundation; the tower drum body comprises a plurality of tower drum sections; the plurality of tower drum sections are sequentially connected along an up-down direction; the plurality of tower drum sections are divided into a first group of the tower drum sections and a second group of the tower drum sections located at the upper ends of the first group of the tower drum sections; the adapter is arranged at the upper end of the tower drum body and connected with the uppermost tower drum section; the first prestressed tendon is arranged in the foundation and the first group of the tower drum sections in a penetrating manner; and the second prestressed tendon is arranged in the foundation, the first group of the tower drum sections, the second group of the tower drum sections and the adapter in a penetrating manner. The concrete tower drum assembly disclosed by the invention is high in stability and reliability; and moreover, the structure of the concrete tower drum assembly is capable of reducing stretching times while ensuring construction safety during a prefabricating process, thus increasing the construction efficiency.
Owner:上海风领新能源有限公司

Filling limiting cylinder valve

The invention discloses a filling limiting cylinder valve which comprises a valve body, a valve element and a first spring, wherein a sliding sleeve capable of doing reciprocating motions in a way of facing to the valve element and a plug screw used for mounting the sliding sleeve into a clamping seat are mounted in the clamping seat on a side wall of the valve body, the plug screw is provided with an iron core extending into the sliding sleeve and used for driving the sliding sleeve through magnetic force to slide to the valve element, the exterior of the sliding sleeve is provided with a second spring used for keeping a tendency that the sliding sleeve slides away from the valve element, a step hole is formed in a runner, a cone part capable of blocking the stepped hole to seal the runner when the valve element moves downward is formed in the valve element, and the sliding sleeve and the valve element are arranged to be that the sliding sleeve stops the valve element moving downward when the sliding sleeve slides to the valve element. Since the filling limiting cylinder valve provided by the invention is arranged to be that the valve element moves downward to close the runner of the cylinder valve, the requirements of relatively great air demand and inflating volume of an electromagnetic filling limiting cylinder valve can be met completely. When the valve element moves downward, all that is needed is to overcome the elastic force of the first spring, and the reliability and the stability of the work of the valve element are ensured.
Owner:GUANGDONG QICAI VALVES TECH CO LTD

Header of low-power-consumption network intelligent water meter and application method thereof

The invention relates to a header of a network intelligent water meter, which comprises a header casing provided with a water inlet and a water outlet, a flow sensor and a flow control system, wherein the flow control system comprises a microprocessor, a power supply connected with the microprocessor and provided with a low-electric-quantity alarm circuit, a control module of the power supply, a flow data acquisition module, an interval type display unit module, a triggering type communication and data transmission module and a reset setting module, low-power-consumption triggering type communication and transmission, and remote power supply and interval type display modes are adopted in the invention to effectively reduce the power consumption of the header; the power consumption of the header is 10% to 25% that of a background technology; and the reliability and the stability of the header can be guaranteed by utilizing the functions of low-electric-quantity alarm and antimagnetic disturbance. Thus the header of a network intelligent water meter has the advantages of high precision of water consumption measurement and display, and remote meter reading, low energy consumption of the header, simple structure and convenient maintenance of the header, and the like. The header of a network intelligent water meter can meet the requirements on all-weather communication and remote meter reading and is beneficial to enhancing the characteristics of popularization and application of the network intelligent water meter.
Owner:成都品冠科技有限公司

Multifunctional cable saddle

A multifunctional cable saddle comprises a saddle body. Two ends of the saddle body respectively face a mid span and an anchor and are provided with a mid span end and an anchoring end, a supporting section saddle groove corresponding to the mid span end and a diverging section saddle groove corresponding to the anchoring end are formed in the saddle body and are in smooth transition in an extending direction of a main cable, and the saddle body integrates a main cable saddle supporting function and a dispersive cable saddle diverging function. The multifunctional cable saddle integrates the main cable saddle supporting function and the dispersive cable saddle diverging function, and the diverging section saddle groove is matched with the corresponding anchoring end, so that diverging and steering of cable strands of the main cable by the diverging section saddle groove are enabled to correspond to position of the anchor, steering angle of the cable strands is mild while supportive of large-angle adjustment and clear in stress, stability and reliability of a suspension bridge built by using the saddle can be ensured, extending length of the main cable can be reduced reasonably and effectively, compact control on bridge type of the suspension bridge is facilitated, and the multifunctional cable saddle is especially suitable for being fixed and used on side towers or bank foundations of the suspension bridge.
Owner:DEYANG TIANYUAN HEAVY IND

Repeater and information transmission method thereof

The invention discloses a repeater and an information transmission method thereof. The repeater comprises a terminal and a communication module mounted on the terminal, and the repeater further comprises a data conversion unit and a remote unit. The communication module which is originally mounted on the terminal is mounted on the remote unit, and the remote unit is provided with an antenna which can be connected with the communication module for wireless communication; the data conversion unit used for analog of the communication module is mounted on the terminal and connected with the terminal through a remote communication module interface; the data conversion unit is in wired connection with the remote unit. The repeater and the information transmission method thereof have the advantages that cross-standard, cross-manufacturer and cross-product compatibility is realized; the communication module can be mounted at positions excellent in signal service, communication distance between a terminal and the communication module is effectively increased, and communication effects are excellent; in addition, normality in operation can be realized only by getting power from the terminal instead of an external power source, so that convenience in mounting and utilization is achieved.
Owner:WILLFAR INFORMATION TECH CO LTD

Shock insulation device for railway bridge

The invention discloses a shock insulation device for a railway bridge. The shock insulation device comprises a base, a shock-absorbing support seat and a shock absorbing structure, wherein the shockabsorbing structure comprises a shock absorbing seat and a shock absorbing frame arranged on the shock absorbing seat, a shock absorbing cavity with an opening in the top surface is formed in the shock absorbing seat, at least two propping cavities are uniformly formed in the inner wall of the shock absorbing cavity, through holes are vertically formed in the shock absorbing seat, a vertical slotis formed in the shock absorbing frame, rotating plates are arranged in the propping cavities, shock-absorbing propping rods and buffering propping rods are fixed on edges of the rotating plates, pullcable rings are fixed on the base, driving wheels are arranged on the shock absorbing seat, pull cables are arranged between the propping cavities and the pull cable rings, and shock-absorbing elastic pieces with W-shaped sections are fixed between the bottom surface of the shock-absorbing seat and the base. The shock insulation device is reasonable in structure arrangement, the overall use stability and reliability can be guaranteed, the shock insulation device has better shock insulation performance, besides, the overall horizontal rigidity is also effectively guaranteed, the adaptability is high and the practicability is good.
Owner:温州卡耐夫电器有限公司
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