106results about How to "Reduce erection cost" patented technology

The invention discloses a method and system for realizing intercommunication among different kinds of instant messaging tools to bring conveniences to instant messaging among network users and satisfy the requirement that a user can choose his or her preferred instant messaging tool which can interconnect with other kinds of instant messaging tools. The technical scheme and method comprise that a instant messaging exchange center is built to support different kinds of instant messaging tool; a first user registers a user name and the kind and account of his or her instant messaging tool at the instant messaging exchange center; the first user uses the registered instant messaging tool and account to communicate with the instant messaging exchange center to assign the user name or the kind and amount of the instant messaging tool of a second user who is the communication opponent; the instant messaging exchange center informs the second user of the communication request from the first user; the second user approves the communication request from the first user, the two users start to communicate and the instant messaging exchange center exchanges and relays the communication content of the two users in the middle.

The invention discloses a flexible networking method on a wide-area coverage scene, and belongs to the technical field of communication network networking. The method comprises the following steps that due to a full-network topology division coverage area, the number and the positions of base stations needing to be built are selected according to the area of the coverage area and the coverage radiuses of the base stations; the networking mode between cells is flexibly selected according to the coverage area, optical fiber resources and QoS requirements between adjacent cells; hot point sectors are partitioned in the cells and clustered, and a static relay is distributed at the geometric center of each cluster; frequency planning is respectively conducted on the hot point sectors and non-hot-point sectors; extending coverage is conducted on the hot point areas on the edges of isolated villages. The flexible networking method can effectively lower building cost of the base stations and reduce operation and maintenance expenses, resolve the problem that remote areas on the wide-area coverage scene can not be connected to a core net, effectively reduce the number of concurrence terminals and expenses of control signaling, improve the frequency spectrum use ratio, and guarantee handling capacity of the edges of the cells.

An automobile instrument driving information automatic testing system based on a CAN bus and vision detection comprises a computer, an instrument clamp, a three-axis movable camera support, a dark box for vision detection, a server, a high-speed camera, a controller, a program control power source, a digital multimeter, a program control resistor control board, a relay control panel and a CAN bus interface device, wherein the program control power source, a program control resistor, the digital multimeter and a relay are controlled through the controller, a database can be analyzed through the CAN bus interface device, a periodical transmitting message is defined through the message of the database, a signal value is changed, monitored and detected, the pointer deviation angle displayed by an electronic instrument of the driving information of an automobile to be detected, the displayed numerical value, the backlight color and the backlight brightness are recognized through automatic vision detection software, and a final result is judged by comparing the pointer deviation angle, the displayed numerical value, the backlight color and the backlight brightness with expected values. Through the system, the testing efficiency is improved, the labor cost for testing is saved, the testing quality is improved, and the hardware erecting cost can also be saved.

The present invention discloses a road construction and desertification control system, which, under the control of a computer, utilizes solar energy to provide energy to a laser device, so that a focusing laser beam is produced to melt and sinter the surface of the desert. The system is mainly composed of a power supply system, the computer and a motor-driving system, a travelling mechanism and a laser scanning sintering mechanism. The power supply system converts the solar energy into electric energy for storage. The laser scanning sintering mechanism moves with the travelling mechanism driven by the stored electric energy to realize the continuous hardening of the surface of the desert or road construction, the needed energy almost totally comes from solar energy, fossil energies are not used, an electric power transmission line is not needed to be erected, and the invention is not affected by weather, the system can operate under all weather conditions. Under the control of the computer, according to the set procedure and in an unattended mode, the system can automatically fulfill operation in the desert region with harsh natural environment, so the labor power is saved. The travelling mechanism is simple, reliable and light, and the present invention is suitable for large-scale desert control or road construction.

The invention relates to an improvement of anti-corrosion and anti-vibration overhead power transmission cables for overhead power transmission lines and is characterized in that the reinforced inner core of the twisted cable is a fiber resin-molded elongated body and has a 0.5-8 mm distance to the innermost conductor of the twisted cable. The inventive wire has the advantages of self-damping vibration protection function, reduced weight of the reinforced core molded from resin mixed with carbon fiber and/or basalt fiber (50-70 percent of the steel-core anti-corrosion and anti-vibration cable core), increased tensile strength (up to 2000-6000MPa), maximum applied stress up to 60 percent of breaking strength, reduced base number or altitude of towers, larger construction span, large current capacity (about doubled), reduced construction cost (by 10-20 percent), and increased service life (by 20-30 years).

The invention discloses a clock synchronization method and device as well as a cascaded base station system. A first-type base station obtains first clock synchronization information from an external clock source; a local clock is adjusted according to the first clock synchronization information, and second clock synchronization information is transmitted to another base station in a preset manner, wherein the second clock synchronization information comprises the first clock synchronization information or is generated according to the first clock synchronization information. A second-type base station obtains second clock synchronization information from at least one external base station; second clock synchronization information as a clock reference is determined from each second clock synchronization information according to a preset manner; the local clock is adjusted according to the second clock synchronization information as the clock reference. By adopting the technical scheme provided by the invention, the clock synchronization information is transmitted depending on links among base stations, so that sharing of the clock synchronization information among the base stations is achieved, and clock synchronization of multiple base stations is implemented finally; compared with the prior art, the invention has the advantage that a GPS does not need to be mounted on each site, so that the costs are reduced.

A suspension conveyance apparatus has a conveying traveling body movably supported on a traveling guide rail and a hanger suspended from the conveying traveling body, and an anti-swaying guide rail in parallel with the traveling guide rail, the anti-swaying guide rail is engaged with a roller and prevents lateral swaying of the hanger. The anti-swaying guide rail is installed on only one of the right and left sides of the traveling guide rail and includes a horizontal flat rail surface and a circular rail surface curvedly protruding in the vertically opposite direction of the horizontal flat rail surface, and a flat peripheral surface roller adjoining to the horizontal flat rail surface and rolling and an hourglass-shaped peripheral surface roller fitted to the circular rail surface are provided as the roller.

The present invention discloses a method for planting common yam rhizome in a mechanization grooving orientation bag tuberization manner, and is characterized in that the common yam rhizome is ecologically cultivated in a mechanization grooving orientation bag tuberization manner by utilization of dry lands, gentle-slope lands or grasslands suitable for cultivation. The method comprises the steps of grooving of grooves having semicircular bottoms, addition of loosening bands for water retention and root relief, plantation bag production, common yam rhizome seed plantation, field eco-management, yam strip harvest, treatment of plastic or other hard materials after harvest, and plantation in the same land in the next year. The semicircular grooves of the common yam rhizome are grooved mechanically by replacing a manual manner, thereby facilitating manual simple harvest or mechanical harvest; production cost of traditional plantation and harvest, for which grooves are deeply dug and labor and time are consumed, is largely reduced, soil preparation, plantation, field management and harvest of the common yam rhizome are simple and convenient, and plantation efficiency of the common yam rhizome is improved; and peasant income can be increased, plantation ranges of the common yam rhizome can be widened, raw material processing industry demand can be satisfied, and the common yam rhizome industry in our country can develop rapidly.

The present invention reveals network video information monitoring system and method. The system includes one network server, one video information server, one data base, several monitoring terminal computers and several video cameras. The network server is for judging whether the received user's name and cipher are correct based on the user information stored in the data base, and obtaining one main system interface for correct user's name and cipher. The video information server connects the user required video camera to obtain in-situ video signal, convert the video signal into video data in specific format, and transmit the video data to the monitoring terminal computer. The monitoring terminal computer includes one video broadcaster for broadcasting video data in the video information window. The present invention can perform real-time site monitoring and save video data files concentratively in low cost.

The invention discloses an automatic charging system based on the image recognition positioning technology, and a charging method thereof. The system achieves the precise positioning through employing the image recognition and employing a charging signboard for recognizing the fixing position of a charging pile, so as to move a specific position for contact-type charging. The system employs the contact-type charging, and is high in charging efficiency, wherein the charging efficiency can reach 95% or more. The system just can complete the automatic charging with the only need of a printing guideboard and one contact-type charging power supply matched with a robot, so the system is simple in structure and is low in building cost. The lateral area of the contact surface of a contact piece of a robot end is set to be greater than the lateral area of the contact surface of a contact pipe of a charging pile end, i.e., increasing the lateral area of the contact piece of the robot end, thereby reducing the lateral error. The contact piece of the charging pipe is provided with a conductive spring, thereby reducing the distance error. The system provides a reasonable solution to the existing errors, and is simple and reliable.

The invention discloses a realizing method for a data center free of fan arrangement in cabinets, and belongs to the technical field of data centers. The realizing method includes the following steps that (1) all air-conditioning fans are combined to form a whole air-conditioning fan unit; (2), heat dissipation channels of the data center are distributed, a cabinet room where the multiple cabinets are placed is arranged in a computer room, the air-conditioning fan unit in the computer room is arranged on one side of the cabinet room, a hot air channel is formed between a ceiling of the cabinet room and a ceiling of the computer room, a cold air channel is formed between the bottom face of the cabinet room and the bottom face of the computer room, hot air outlets communicated with the hot air channel are formed in the ceiling of the cabinet room, and cold air inlets communicated with the cold air channel are formed in the bottom face of the cabinet room; (3), the refrigerating capacity of the air-conditioning fan unit is designed according to the number and the distribution density of the cabinets in the data center. Fans dispersed in an air-conditioning system and fans dispersed in a server system are combined, the fans are only reserved in air conditioners, and therefore the number of the fans is reduced.

The invention provides a power supply device for controlling a light. The power supply device comprises a micro-processing unit, a power converting unit coupled to the micro-processing unit to convert ac into dc, a wireless communication module coupled to the micro-processing unit to receive and transmit wireless signals, a network module coupled to the micro-processing unit and a driving circuit coupled to the micro-processing unit to drive the a lighting component in the light.

The invention discloses a method for achieving indoor positioning of a robot through image identification. Through a camera arranged on a mobile robot and through image identification technology, guideboards preset in an environment can be identified, and the position and direction of the robot can be determined by the position and direction of the guideboards. The precision can reach a centimeter level, the precision requirement for robot navigation is met, and the precision is not prone to be disturbed by a shield. No extra cost is needed on a common robot platform, and the robot platform only needs a camera for shooting the surrounding environment. Through improvement of the resolution ratio of the camera and adoption of a multiple positioning algorithm, the position precision can reach a millimeter level and the bearing precision is no more than one degree. The construction cost of a system is low, and the system has a high recognition rate of a blue-background white-character guideboard printed through a color printer. Printed guideboards are required in the environment and the position and direction of the guideboards are recorded to complete construction of the positioning system. Positioning based on guideboard identification conforms to the strategy of human navigation, and easily integrates a machine in vision.

The invention provides a fire extinguishing system based on a fire monitor group. The fire extinguishing system based on the fire monitor group comprises a water supply system, a plurality of fire monitors communicating with the water supply system and a controller for controlling the fire monitors to work, each fire monitor comprises an image positioning assembly, and the controller carrying outpositioning on a fire source based on the image positioning assembly, and controls the fire monitors to extinguish fire at the fire source position. The invention further provides a fire extinguishingmethod based on the fire extinguishing system, positioning is carried out on the fire source according to the angles of the fire monitors, the jet flow parabola parameters of the fire monitors are calculated based on the positioning result, and the fire monitors are controlled to extinguish the fire through the jet flow parabola parameters. The fire extinguishing system based on the fire monitorgroup and the fire extinguishing method have the advantages that under the condition that the fire monitor group is erected, active monitoring and automatic positioning of the fire source can be achieved, fire extinguishing is rapidly and efficiently carried out on a target space, and the safety is improved.

The invention discloses a method for implementing high-speed wireless communication between a civil aircraft and an airline company operation center when the civil aircraft parks on an airport apron. The method comprises the following steps: an airline company management center is accessed to an airport terminal through the internet; and a millimeter wave high-speed wireless bridge and a millimeter wave high-gain directional antenna in an airport terminal area implement 'point-to-point' or 'point-to-multipoint' millimeter wave high-speed wireless data linking with a millimeter wave high-speed wireless bridge and a millimeter wave high-gain directional antenna in an apron area of a civil aviation airport so as to realize hot spot coverage on the airport apron in the apron area of the civil aviation airport through an IEEE802.11a/b/g/n/ac wireless access point and a wireless hot spot radio frequency antenna. According to the method disclosed by the invention, the millimeter wave high-speed wireless bridges and the millimeter wave high-gain directional antennae are adopted, and thus a long-distance and non-interference high-speed wireless communication link can be realized.

The embodiment of the invention discloses a synchronization method and a synchronization device. The synchronization method comprises the steps of reading an adjacency information table preset by a current node, wherein the adjacency information table comprises the address information of an upper node; sending heartbeat request information to the address information of the upper node; if receiving the heartbeat response information based on the heartbeat request information, sending caching information to the upper node, wherein the caching information comprises data information within a preset time slot; sending a user subscription information request to the upper mode; and receiving the user subscription data information which is sent by the upper mode and belongs to the current node, and updating the data according to the user subscription data information of the current node. According to the synchronization method and device, through synchronizing data information between the nodes in time, the accordance of each node data in the network can be ensured, the cross-regional roaming problem in the miniaturized LTE network can be effectively solved, and the network building cost and the network resources can be saved.