389results about How to "Reduced installation effort" patented technology

The invention discloses a offset T type head that comprises the first port, the second port, the third port, blocking condenser, the first inductance, the second inductance, modem, thereinto, the second inductance is used to connect the first port, the second port transmits said direct current; the invention also provides a system which controls antenna that comprises electricity controlled antenna drive motor unit, electricity controlled antenna, tower top amplifier, offset T type head and base station; according to the offset T type head of the invention, when the non- electricity controlled antenna is updated to the electricity controlled antenna, there is no need to be instead of STMA, so the cost is decreased, the electricity controlled antenna controller is not added, and the technique problem of poor applicability using electricity controlled antenna controller can be avoided, and the base station do not need to provide connection port, without longer cable, the amount of work is decreased.

The invention discloses a household air conditioner with different capacities of fixed-speed double compressors and a control method thereof. The air conditioner comprises four parts, namely an indoor unit, an outdoor unit, an indoor control device and an outdoor control device. The indoor unit consists of an indoor heat exchanger, an indoor fan, two capillary pipes and four electromagnetic valves; the outdoor unit consists of different capacities of fixed-speed double compressors, a compressor current detection circuit, four electromagnetic valves, a four-way valve for changing the flowing direction of a refrigerant and a gas-liquid separator; and the communication between the indoor control device and the outdoor control device is performed in a power carrier mode. The control devices acquire the thermodynamic characteristics of a room where the air conditioner is arranged based on a statistical theory and a statistical method, dynamically modify a self-adjusting switching rule of the double compressors, improve the energy efficiency ratio of the air conditioner, and improve the comfort level of human bodies; and the control devices adopt a preset temperature upper / lower limit starting / stopping rule embedded with the self-adjusting switching rule of the double compressors to control the air conditioner, and the compressor current detection circuit ensures that a double compressor system structure has high availability.

The invention discloses a wide- and narrow-row handheld rice transplanter with a wide partition in a seedling box, which comprises an engine, a ground profiling mechanism, two driving wheel systems, a seedling claw movement mechanism, a seedling box movement mechanism and a handheld operating system. The seedling box with the wide partition of the invention can ensure that only a set of spiral shaft for feeding seedlings transversely is required when the ratio of wide rows to narrow rows of the rice transplanter is not an integral multiple, so the seedling feeding mechanism is greatly simplified. The principle and the structure of the spiral shaft mechanism for feeding seedlings transversely of the wide- and narrow-row hand-held rice transplanter are the same as those of the spiral shaft mechanism for feeding the seedlings transversely of an equal-row rice transplanter, so the design and manufacturing cost of the wide- and narrow-row hand-held rice transplanter is greatly reduced.

The invention relates to a bus intelligent control system, belonging to the technical field of automatic control of power distribution. The system comprises a bus trunk system and intelligent type complete equipment, wherein the bus trunk system comprises a set of bus trunk unit and a bus branching unit which is electrically connected with the corresponding bus trunk unit through a bus-bar pile head; the intelligent type complete equipment mainly comprises a monitoring sensor piece, a CPU, a CAN controller and a CAN transceiver; the monitoring sensor piece comprises a current transformer, a voltage measuring device and a temperature sensor; output terminals of the current transformer, the voltage measuring device and the temperature sensor are respectively connected with corresponding signal input terminal of the CPU; a communication terminal of the CPU is connected with a CAN bus which is communicated with an upper computer through the CAN controller and the CAN transceiver, and a control output terminal is connected with a controlled terminal of a motor switch. The invention organically combines a bus duct technology and an intelligent power grid, and realizes the automatic control function on the power distribution system.

The invention provides an offshore solar energy, wind energy and wave energy complementary power generation device. The offshore solar energy, wind energy and wave energy complementary power generation device comprises a wave energy capturing device, a wind energy capturing device, a hydraulic transmission system, a solar photovoltaic panel, a power conversion system, a floating platform upper-layer deck, a floating platform lower-layer deck, a supporting column, an underwater buoyancy tank and a mooring system. The hydraulic transmission system is composed of a wave energy conversion hydraulic subsystem and a fan hydraulic subsystem. The wave energy capturing device and the wind energy capturing device are connected with the two subsystems correspondingly to drive a generator to generatepower, and are combined with electric energy generated by the solar photovoltaic panel through the power conversion system to form a microgrid, and the electric energy is stored in an energy storage device or directly supplied to a user. Main oil ways of the wave energy conversion hydraulic subsystem and the fan hydraulic subsystem are connected through communicating pipelines, and connection anddisconnection of the two main oil ways are controlled through a cartridge valve. When resources are good, the two subsystems operate independently; and when the resources are poor, the two subsystemsoperate in a complementary mode to drive the generator to generate power.

The invention discloses an explosion venting bolt fastener for a pressure relief facility, which can strengthen the strength of the explosion venting bolt fastener without increasing the thickness and also strengthen the waterproof effect of the explosion venting bolt fastener. The explosion venting bolt fastener comprises a screw rod and a metal spacer sleeved at the head part of the screw rod. An elastic spacer which is sleeved on the screw rod is also arranged below the metal spacer, and the metal spacer is in an arc structure protruding outwards; the elastic spacer is in the same arc structure with the metal spacer and clings below the metal spacer; the arc structure can adopt a spherical surface structure, the elastic spacer can adopt a rubber spacer; a tapping head is arranged at the end of the screw rod; and a corrosion and rust resistance layer is plated on the threaded surface of the screw rod.

The invention discloses a system for serial port transparent transmission and program updating in an internet range. The system is characterized by comprising n communication apparatuses, an updatingcontrol terminal, an MQTT server and n target devices; and the ith communication apparatus is only connected with the ith target device. According to the system, when both transmission parties are connected to the internet through a router allocated with a private IP or general network frameworks of other NAT devices, point-to-point serial port transparent transmission in the internet range is realized; and seamless secure updating of a remote program can be realized through the internet under the condition that the target devices do not need to perform any operation and original program codesare not modified, so that data transmission and behavior updating of industrial control equipment and household appliances in the internet range are realized under the condition of not increasing additional development workload.

The invention discloses an electric vehicle power system test system and an electric vehicle. An electric vehicle power system comprises a frequency converter and a power motor connected with the frequency converter. The test system comprises a vehicle-borne power battery of which the output end is connected with the input end of the frequency converter, a heat management pipeline used for executing heat management on the vehicle-borne power battery, a quick charger connected with the vehicle-borne power battery, a load motor connected with the power motor, and a power analyzer connected with the output end of the vehicle-borne power battery, the output end of the frequency converter and the output end of the power motor. According to the invention, the vehicle-borne power battery is used to replace a special DC power supply, so the cost is reduced, and the installation workload is reduced.

The invention discloses a traveling crane position tracking device based on radio frequency identification. The traveling crane position tracking device comprises a main controller, a position detection device and a position calibrating device, wherein a rotary encoder is adopted by the position detection device, and the position detection device is installed on a main shaft of a traveling crane running motor and used for detecting accurate information of traveling crane displacement; a super-high frequency RFID (Radio Frequency Identification Device) reader and an RFID electronic tag are adopted by the position calibrating device, wherein the RFID reader is fixed on a traveling crane body, and the RFID electronic tag is packaged and then fixed on a bracket arranged on a traveling crane track; and the position detection device and the position calibrating device are both converted through a serial port communication interface and a serial port of the main controller and connected with an expansion module, and the main controller transmits processed position information to a traveling crane terminal control system through an ethernet interface module. In the invention, the displacement is measured by utilizing the rotary encoder, and an RFID-calibrated composite positioning technology is adopted, therefore, errors generated by the problems, such as mechanical skidding, and the like in traveling crane position tracking can be effectively reduced, the traveling crane positioning precision is improved; and the device contributes to managing traveling crane hoisting production.

The falling preventing paired roller apparatus includes track, and two rollers in the basically same structure and set on two sides of the track. Of the two rollers, at least one is active roller with axle controlled by a drive mechanism and a normally closed brake. The rollers on the two sides of the track contact the track to form a basically symmetric arrangement. One force applying unit makes the two rollers generate equal and opposite pressures on the track to overcome gravitational force. The present invention has the advantages of simple structure and wide use, and may be used widely in vertical or inclined transportation machines.

The invention relates to a displacement positioning system based on leaky communication cable signal attenuation differences. The displacement positioning system comprises an upper computer, a leaky communication cable L with known length and a mobile station, wherein the two ends of the leaky communication cable L are connected with a first base station and a second base station, the mobile station moves along the leaky communication cable L and in radio frequency communication with the first and second base stations through the leaky communication cable L, or radio frequency signals with the same signal strength sent by the first and second base stations at the two ends of the leaky communication cable L are received by the mobile station. According to the displacement positioning system and a positioning method, the same signal is transmitted to the two ends of the leaky communication cable L to produce different attenuation values, measurement is easy by using the received signal strength, accurate distances between the mobile station and the base stations are analyzed and calculated by using the characteristic of positive relation between the attenuation value differences and transmission distances, so that real-time accurate positioning of closed roadways is achieved, installation of card readers is omitted completely, the system is simplified, installation and post-maintenance workloads are reduced, and the stability of the system is improved.

The invention discloses an installment structure of a GRG decorative panel. The installment structure of the GRG decorative panel comprises the GRG decorative panel 1 fixed on a building wall body 2. The left side and the right side of the back of the GRG decorative panel 1 are respectively thickened, and therefore vertical installment strips 11 are formed on the left side and the right side respectively. A vertical keel 3 is fixed on the wall body 2. The wall body 2 is further provided with a first installment piece 4 and a second installment piece 5, wherein the first installment piece 4 is fixed on the vertical keel 3, the left end of the second installment piece 5 is fixed with vertical installment strips 11, and the right end of the second installment piece 5 is fixed with the first installment piece. Because the GRG panel is provided with the vertical installment strips, the vertical keel is arranged on the wall body, transverse keels are not needed, the first installment piece is connected with the second installment piece to replace the function of the transverse keels, installment work load is small, installment cost is low, and installment efficiency is high.

The invention provides a switch cabinet misoperation-preventive locking device and a working method thereof. The switch cabinet misoperation-preventive locking device is arranged on a switch cabinet, a bus charged state in the switch cabinet can be detected, at the same time, a switch cabinet door is closed, or an earthing knife-switch operating mechanism is turned off. The switch cabinet misoperation-preventive locking device comprises a communication adapter, the switch cabinet misoperation-preventive locking lockset comprises an unlocking mechanism and a high-voltage charged detection circuit, through a misoperation-preventive management module of a host computer, management and operation information recording of the misoperation-preventive locking device can be realized. The switch cabinet misoperation-preventive locking device has electricity testing and unlocking functions, by cooperation with an operation key and authorization management of the host computer, electricity testing and unlocking on the device can be realized, all operation results can be preserved by the host computer, so that query can be conveniently carried out in the future, problems of low work efficiency and no operation result record due to step-by-step implement of electricity testing and unlocking on the device can be solved, and disadvantages that the switch cabinet cannot avoid an electrified docking earthing switch can be solved, and operation security is increased.

The invention relates to a novel elevator advertising media technique, the technical problem needed to be solved is to provide a multimedia advertising method and a device for automatic elevator stop announcement and video display, the invention is numerous in advertising and service functions and low in cost, and can realize wireless remote play control and data transmission in real-time. The novel elevator advertising media technique not only solves the problem of the signal collection when the elevator is in operation state, but also enables the advertising media operation to be convenient and simple, and enables the advertising normalized form to be rich and colorful, thereby largely increasing the quality of advertising play and control, satisfying the new need of advertisers for the communication media of modern advertising information and enabling elevator passengers to enjoy multimedia information.

The embodiment of the invention provides a turbomachine blade vibration displacement monitoring method and device. The method comprises the steps of obtaining the actual arrival moment of each blade passing through each target position, according to the actual arrival moment of each blade and the ideal uniform-distribution installing angle, obtaining an error arc length corresponding to an error between the ideal uniform-distribution installing angle and the actual installing angle and a theoretical arrival moment of each blade, further obtaining vibration displacement of a reference blade inturbomachine blades, and further achieving calculation and correction of the target vibration displacement of each blade on the basis of vibration displacement of the reference blade. The vibration displacement condition of the turbomachine blades is monitored conveniently, monitoring of the blade vibration displacement condition is easy and efficient, and the accuracy is high.

The invention discloses a novel 1100kV GIS bus structure and relates to high voltage equipment. The novel 1100kV GIS bus structure comprises a casing, wherein two ends of the casing are equipped withbasin-type insulators through bolts, a first conductor and a third conductor are fixed on thread holes at the middle of the basin-type insulators through bolts, the casing is provided with multiple supporting insulators, the supporting insulators are connected with shaped conductors, two sides of the shaped conductors are respectively fixedly equipped with a contact, and two sides of the shaped conductors are provided with the shield. The bus structure is advantaged in that the integral size is small, weight of a unit bus is reduced, the sulfur hexafluoride gas is further correspondingly reduced, materials and cost are greatly saved, the discharging possibility is reduced through the shaped conductors, a problem of the reduced insulation distance caused by local conductor expansion can besolved, the bus diameter is reduced, insulation performance is guaranteed, the conductor length increases through the supporting insulators, length of the unit bus increases, the butt area is greatlyreduced, and mounting workload is reduced.

The invention discloses a novel network full-view fastball camera. The camera not only can monitor in a range of 360 degrees for 24 hours, but also can cruise at a high speed, predicate the direction of a monitoring target, link and alarm, accurately position, rapidly track, automatically store an alarming video and announce a user as soon as possible. Shown as the figure, compared with the existing camera, the camera realizes all functions of a full-view camera and a high-speed ball camera at the same time; and moreover, the camera avoids the problems that the full-view camera and the high-speed ball camera in a traditional monitoring system are commonly used so as to cause local shielding, monitoring blind points and the like. The camera has the outstanding advantages that no monitoring blind points exist, the direction of the monitoring target is predicated, linkage alarming is realized, the camera can accurately position and rapidly track, a monitoring picture is clear and smooth, and an image distortion rate is low. The camera disclosed by the invention replaces the full-view camera and the high-speed ball camera, has a strong function and great practical applicability, and can generate good economic benefits and social benefits.

The invention discloses a solar photovoltaic roof structure body. The solar photovoltaic roof structure body comprises a roof body and a photovoltaic module, wherein the photovoltaic module is installed on the roof body, an intersection angle is formed between the upper surface of the photovoltaic module and a horizontal plane, a photovoltaic module cleaning system is arranged on the roof body, and the photovoltaic module cleaning system is used to clear sundries on the surface of the photovoltaic module. According to the solar photovoltaic roof structure body, the photovoltaic module cleaning system is installed on the roof body, and can be directly used to clean the surface of the photovoltaic module on the roof body so as to remove impurities, dust and the like on the surface of the photovoltaic module, a person does not need to climb a roof for cleaning the photovoltaic module, and therefore on the one hand, the number of dangerous operation processes is decreased, and an operation security coefficient and operation efficiency are improved, and on the other hand, compared with manual cleaning, the photovoltaic module cleaning system used to clear the sundries on the surface of the photovoltaic module can timely clean the photovoltaic module, and is good in cleaning effect and high in efficiency.

Embodiments of the invention provide a turbine blade vibration parameter analysis method and analysis device. A reference blade is selected from the blades of a turbine, and the other blades are usedas calculation blades; the vibration parameters of all the blades are calculated by taking rotation parameters of the two types of blades as calculation factors, so that the introduction of a key phase sensor in a traditional blade vibration monitoring system is omitted, measurement error caused by inaccurate key phase reference is avoided, the installation workload is reduced, and the monitoringcost is lowered; and therefore, the vibration condition of the turbine blades can be monitored conveniently, the accuracy of monitoring is improved, and the possibility that the whole blade monitoringsystem is crashed due to the fact that the key-phase sensor breaks down is avoided.

The invention provides an ink box chip, a light emitting display method thereof and an ink box. The ink box chip comprises a substrate which is provided with a communication unit and an electronic module, and further provided with a light emitting diode (LED) which is controlled to light by the electronic module. The electronic module comprises a master control module which receives signals which is output by the communication unit, wherein the electronic module is further provided with a light emitting control module which receives light emitting control signals output by the communication unit, and when receiving an order of long bright light emitting signals of the LED of any ink box chips, the light emitting control module controls the LED to light in a long bright mode. The light emitting display method is the method that after the above ink box chip receives the light emitting control signals, the LED is controlled to light. The ink box is provided with a shell box, and the ink box chip is arranged on the outer wall of the shell body. According to the ink box chip, the light emitting display method thereof and the ink box, the work amount of mounting the ink box chip can be reduced, the work efficiency of mounting the ink box chip can be improved, and meanwhile the work of an ink-jet printer can be guaranteed.

An end fitting for a piping system requires no tools for tightening or seal agents for sealing. The end fitting includes a sealing body adopted to receive a pipe member, which includes an externally threaded portion. The sealing body includes an internally threaded section, which is shorter than the externally threaded portion of the pipe member. A seal retainer is placed in an annular groove made in the sealing body. The seal retainer is adopted to contact the externally threaded portion of the pipe member prior. After the contact takes place, the oppositely threaded portions of the sealing body and the pipe member are engaged.

The invention discloses a skid-mounted type building mud treatment device and process. The treatment device comprises a mud homogenizing tank, a screw overlapped type sludge dehydrator, a sludge storage tank, a sludge conveying pump, an agent preparation system, an agent adding pump and an electrical control cabinet which are installed on an overall base or in a container. The mud homogenizing tank comprises mud homogenizing stirring tanks and a mud and agent mixing stirring tank. The mud homogenizing tank is longer in retention time after being improved, and mud is mixed more uniformly and is not prone to settle. The screw pitch is in special reducing design after a screw shaft of the screw overlapped type sludge dehydrator is improved, the spiral angle is gentler, and an abrasion-resistant layer is thicker. Through special structural design, the building mud is rapidly dehydrated on the overall base or in the container, a whole system is high in integration degree, the occupied place is small, the mass is low, the size is small, mobility, environmental protection performance and dehydration speed are high, the effect is good, outward transport disposal cost is reduced, and treated soil can be directly modified and resourcefully utilized.

The invention discloses a method for installing a cylinder foundation trestle structure. The method for installing the cylinder foundation trestle structure comprises the steps that firstly, the cylinder foundation trestle structure composed of four cylinders, cylinder top cover plates, round stand columns and two cross beams is inflated; secondly, the cylinder foundation trestle structure is hauled to an installation place, air is exhausted, and ballast is increased until the four cylinders are sunk to the position where the lower side faces of the cylinder top cover plates are in contact with a soft foundation; thirdly, a layer of concrete is poured on each cross beam, bridge deck slabs are lifted and installed, the bridge deck slabs are fixed between the two cross beams, and then installation is completed. In this way, transportation of the cylinder foundation trestle structure does not need a transportation barge, field installation does not need a large ship crane, the amount of offshore field installation work is small, the influence on construction of stormy waves is small, the construction efficiency is high, the construction quality is high, and the comprehensive construction cost is low.

The invention relates to an auxiliary device for borings of coaxial large span length ear base holes and a method for manufacturing the borings. The auxiliary device comprises an extending knife bar, a transitional supporting sleeve and a support, wherein the transitional supporting sleeve is inserted in an ear base hole which is manufactured through a common short knife bar and near a constructional element of the end surface of a machine tool main axle, a support supporting sleeve is inserted in a round hole on the support, and the extending knife bar is passed respectively through the transitional supporting sleeve and the support supporting sleeve and supported in auxiliary by the transitional supporting sleeve and the support supporting sleeve. The method for manufacturing the borings adopts the auxiliary device to manufacture the coaxial long center ear base holes on a large scale boring and milling machine. The coaxiality of coaxial ear base holes and center distance and the depth of parallelism between central lines of different axis ear base holes can be guaranteed, a derrick and a drill floor are connected on a basal seat after adopting the method to manufacture the borings of coaxial long center ear-seat holes on large scale structural elements as a driller, which has high assembly preciseness, little cooperating gap, and is stable while in use, installing working amount can be decreased greatly, and installing working efficiency can be increased.

The invention relates to a method for mounting large shafts in a ship and ocean engineering. The method comprises the following steps of 1, manufacturing an auxiliary device used when the large shafts are mounted; 2, transporting isometric pull rods, thick-walled seamless tubes and heavy rails in the auxiliary device to an engine room area of a built-in ship or ocean engineering; 3, assembling a V-shaped supporting frame, an adjusting frame, a hydraulic oil cylinder, a driving travelling mechanism and rolling wheels in the auxiliary device into a whole trolley, and lifting the whole trolley to the place above the heavy rail, so that the rolling wheels of the whole trolley are clamped on the heavy rail; 4, placing the large shafts, including a propeller shaft, into the V-shaped supporting frame of the whole trolley, so that the V-shaped supporting frame is uniformly stressed; 5, driving the rolling wheels through the driving travelling mechanism of the whole trolley, so that the shafts safely and smoothly enter mounting positions and are mounted. According to the method provided by the invention, mounting of the large shafts can be relatively quickly and better added, the working efficiency can be obviously improved, and the work load is reduced.

The invention relates to an extraction tower and a process for removing methanol from residual C4 of an etherification reaction. The extraction tower comprises a tower body which is internally provided with a plurality of supporting beams; each group of supporting beams corresponds to one layer of tower plate in parallel; a plurality of grooves are formed in each supporting beam at intervals; liquid flow holes communicated with the adjacent lower layer of tower plate are formed in the bottom surfaces of the grooves; each layer of tower plate is formed by splicing a plurality of secondary tower plate pieces; the supporting beams in each two adjacent groups are arranged in a staggered manner; a washing liquid inlet is formed in the upper part of the tower body and a C4 inlet is formed in the lower part of the tower body; a gas-phase outlet is formed in the tower top, and a liquid-phase outlet is formed in the tower bottom. Desalted water which is taken from the outside and has the temperature of 35-45 DEG C enters the tower body from the washing liquid inlet through a desalted water pump, residual C4 of the etherification reaction, which has the temperature of 35-45 DEG C, enters the tower body from the C4 inlet, and the flow ratio of the washing liquid to residual C4 of the etherification reaction is 1 to (20-25). Methanol in mixed C4 with the low methanol content can be removed and the content of methanol in processed mixed C4 is not more than 50ppm so that the consumption amount of a sulfuric acid catalyst in an isooctane device, the energy consumption of the device and the amount of waste acids can be reduced.

The invention provides metal pipe outer wall rust removing and cleaning equipment. The metal pipe outer wall rust removing and cleaning equipment comprises a workbench, a first motor, moving screw rods, a connecting rod, a second motor, a driving shaft, a liquid storage box, a nozzle, a transverse screw rod, a liquid collecting box, a second-stage filter plate and a first-stage filter plate. The first motor is installed on the workbench. The two sets of moving screw rods are installed in two sets of groove bodies correspondingly and are connected through the connecting rod. The second motor is installed on a first base. The left end of the driving shaft is connected with the second motor. The right end of the driving shaft is connected with a first clamping device. A screw rod groove is formed in the upper end surface of the workbench. The transverse screw rod is installed in the screw rod groove. The liquid storage box is assembled on the transverse screw rod. The nozzle is assembled on the liquid storage box. The liquid collecting box is installed on the lower end surface of the workbench. The first-stage filter plate is assembled in the liquid collecting box. The metal pipe outer wall rust removing and cleaning equipment is simple in structure, convenient to operate, savable in energy, environmentally friendly, good in rust removing effect and high in reliability.

The invention discloses a touch automatic spraying and dust-settling device which comprises a touch sensor, a main control box, an electromagnetic valve, a water supply pipeline and multiple sprayers, wherein the main control box and the touch sensor adopt a wireless communication mode; and the main control box and the electromagnetic valve are integrally arranged. A sensor signal acquisition module is used for acquiring a touch signal; when a signal is generated, the signal is transmitted to a wireless sending module; the wireless sending module sends corresponding data; after receiving the data sent by the wireless sending module, a wireless receiving module sends the data to a CPU (central processing unit) data processing and control module for data processing; and a control display circuit displays the current spraying state and controls the opening / closing of the electromagnetic valve. The touch automatic spraying and dust-settling device disclosed by the invention has a light and small structure; as the main control box and the electromagnetic valve are integrally arranged, the device is convenient to install and move, and the equipment faults are also reduced; and as signals are transmitted between the sensor and the main control box in a wireless communication mode, connection wires are reduced, connection errors are avoided, the fault rate is low, and the workload of installation and maintenance is reduced.

The invention discloses a photovoltaic component which can be matched with other photovoltaic components for use and comprises a solar cell (1) and an outer frame (2) protecting the solar cell (1), wherein the outer frame (2) comprises a depressed part (21) and a raised part (22) which is opposite to the depressed part (21); furthermore, in the adjacent two photovoltaic components, the depressed part (21) of one is matched and connected with the raised part (22) of the other one. The photovoltaic component can replace a traditional roof tile to be mounted on a roof and become a whole with the roof, thereby being unnecessary to increase a mounting member of the photovoltaic component, and the structural designs of load-bearing, waterproofing and the like damaging the roof in the later stage, being convenient to mount, being capable of being mounted by staff with the mounting skill of the traditional roof tile, having no need of professional mounting device, staff and the like, improving the mounting efficiency of the photovoltaic component and reducing the mounting cost of a building roof formed by the photovoltaic component. The invention further provides the building roof comprising the photovoltaic component.

The invention discloses an RFID (Radio Frequency Identification Device) technology-based displacement sensing positioning system and a positioning method thereof. The system comprises a plurality of positioning communication units, wherein each positioning communication unit is composed of two base stations and a certain length of leakage cable with two ends connected with the two base stations; the base stations on the two ends of the leakage cable send signals with time marks to a mobile station, and the mobile station in any position between the two base stations monitors and receives the signals sent by the two base stations, and the accurate position of the mobile station between the two base stations can be analyzed and calculated out according to the signal sending time of the two base stations and the signal arrival time, as well as the known speed and distance of the signal sending between the mobile station and the two base stations through the leakage cable, thereby completing the displacement sensing positioning communication. According to the invention, the displacement sensing positioning communication of the mobile station in a laneway is realized, and the installation and debugging of positioning card readers, substations and the like which are used in a traditional positioning communications system are avoided, thereby simplifying the system, reducing installation workload and maintenance workload in a later period, and improving the stability and performance of the system. Therefore, whole-journey continuous accurate positioning communication is realized in the system coverage.