38 results about "Top management" patented technology

The invention discloses a pipeline system without disassembly and assembly of a pipe jacking machine and a construction method thereof, which solves the problems in the prior art that pipe jacking construction requires frequent disassembly and assembly of pipelines and low construction efficiency. The invention includes a shield body, a pipe joint and a pushing device. The pushing device pushes the pipe joint and the shield body to move forward. It also includes a pipeline retracting device and a guiding device. The pipeline winding device is wound with a pipeline. The outer wall of the shield body There is a shield wire groove on the top, and a pipe joint wire groove is arranged on the outer wall of the pipe joint. The pipeline passes through the guide device and extends into the shield body through the pipe joint wire groove and the shield body wire groove. There are seals in both. Compared with the current pipe jacking method construction, the present invention can carry out continuous construction without dismantling the pipeline during the jacking process, shorten the construction period, improve work efficiency, and has great engineering advantages, and the pipe jacking machine does not need to disassemble the pipeline system And its construction method saves cost and improves construction safety factor.

An embodiment of the invention discloses a method of detecting position legality and a system, comprising: receiving the reported fixed network position identification and access device identification, comparing the received fixed network position identification with that corresponding to the stored access device, or after converting the received network position identification into geographic position information, comparing the geographic position information obtained through conversion with that corresponding to the stored access device according to the access device, when any comparing result is inconsistent, determining the detecting result of position legality as position legality of the access device. According to the method of detecting position legality and the device and the system provided by the embodiment of the invention, position detection and legality judgment on the access device are realized, causing the operator to manage usage on the access device such as an access point AP, ensuring legal interest of the operator.

The invention discloses a method for controlling a microgrid inverter to improve voltage quality of a microgrid bus. The method is characterized in that the microgrid inverter works independently under own control to improve the voltage quality of the microgrid bus and distributes powder between units; the microgrid inverter can accept scheduling of a top central management system and adjust output voltage of the microgrid inverter according to a scheduling instruction of the top management system to realize voltage control and voltage quality improvement of the bus. The microgrid inverter is used to participate in voltage quality improvement of the microgrid bus, by controlling inverter output impedance to absorb load-caused harmonic current, input of special electrical and electronic devices for improving electric energy quality in a microgrid can be reduced, and control is more flexible because of the dispersity of mounting of the microgrid inverter.

The invention relates to a system for measuring and managing electric energy used for agricultural irrigation and drainage, which comprises a prepaid card electricity meter, a meter reader, a card reader, a provincially unified key system, an electricity selling system and a non-contact intelligent CPU card serving as a storage medium. The same type of equipment adopts a unified technical specification and communication interface to ensure inter-equipment communication and realize the function of the system. A PSAM module with a storage key is arranged in the unified prepaid card electricity meter of an electricity selling terminal; and keys in the PSAM module and the intelligent CPU card are used for performing security authentication to realize the high-level management of recharging and avoid the possibility of selling the electricity privately. The unified key system strengthens the security system of the whole system and improves the technology level of preventing electricity stealing. The unified electricity selling system and WEB data representation and data mining technology improve the accuracy, the consistency and the generality of data and provide a reliable data basis for leaders from provincial and municipal top management departments and the unit.