31results about How to "Simple installation and wiring" patented technology

The invention discloses a design method of an intelligent power supply electronic converter of a general-type railway signal lamp; a converter is connected in series between a current relay in a central control room and a railway signal lamp; an electro magnetic compatibility with three-stage series surge protection function, main and auxiliary power supplies, an active power factor correction circuit, an off-line DC-DC, a signal processing circuit of which the periphery is connected with all sorts of detection circuits and a state output control circuit are connected to form the intelligent power supply electronic converter. The design method adopts surge protection, a switch power supply, a microcontroller, signal collection and processing and other technologies, and has the advantages that installation and line connection are simple, without the limitation of installation distance; the power voltage provided for the railway signal lamp is constant, the total transfer efficiency is greater than or equal to 80%; the design method specially provides a new-type LED railway signal lamp with power and the old-type railway signal lamp can be directly used by internal installation without change of the optical system of the old-type railway signal lamp.

The invention relates to a method for simulating five cameras by utilizing double cameras for education recording and broadcasting, which is applied to a campus professional live video. According to the method for simulating the five cameras by utilizing the double cameras for the education recording and broadcasting and a live broadcasting method thereof, a system of the method for simulating the five cameras by utilizing the double cameras for the education recording and broadcasting comprises a recording and broadcasting main unit, a display, a teacher camera and a student camera, wherein the teacher camera can shoot a teacher podium and a whole wall body where a blackboard is located, the student camera can shoot panorama of all the students, the recording and broadcasting main unit is used for analyzing and judging data transmitted by the two cameras, a main screen is displayed by the display. By adopting the method provided by the invention, a shooting task can be finished by utilizing only two cameras without utilizing a pan-tilt-zoom camera, and any camera can be utilized; wire arrangement is also simple by utilizing only two cameras, two video lines and two power lines.

The invention discloses a follow-up projection type advertising device, which comprises an induction area ring, an annular projection curtain and a projector, the induction area ring is distributed around a displayed object, and a plurality of induction sensors used for checking the position of a human body on the induction area ring are arranged in the induction area ring. The projector and the sound box equipment are integrally installed on a projection table, the projection table is horizontally arranged in the center of the interior of an annular projection curtain, and the annular projection curtain is formed by horizontally closing and splicing a plurality of vertically-arranged arc-shaped curtain plates. A rotating mechanism used for driving the projection table to rotate with the center of the annular projection curtain as the circle center is arranged between the projection table and a hanging assembly, and a lead screw driving mechanism used for driving the hanging assembly to horizontally and transversely move is installed at the top of the hanging assembly. According to the invention, follow-up projection advertisement information display can be annularly carried out around consumers according to activity paths of the consumers for visiting products.

The invention discloses a low-temperature plasma discharge power supply device. The power supply device comprises a power supply casing. A control unit, a switching power supply, an inverter, a dry type transformer and a power module are arranged in the power supply casing. The front side wall of the power supply casing is provided with an output voltage indicator, a running state indicator, a power switch capable of starting and shutting down discharge of the switching power supply, a manual adjustment knob, a front end heat dissipation hole and an output power indicator. The dry type transformer is adopted, and the device space is saved. A cooling fan and an internal cooling fin and the like are utilized, so that a power device can be effectively cooled, and the influence of temperature rise on the device is reduced. High voltage output terminals are isolated through a voltage-resistant insulting material, and a socket is in the high voltage protection wiring form, can be connected with a discharge module quickly and is easy to install, debug and maintain.

The invention relates to a harvester control system, belonging to the technical field of the harvester and comprising a starting system, a charging system and an illuminating system. The harvester control system is characterized in that the control system comprises a controller, a steering control and indication system, an electric control harvesting system, an electric control grain conveying system, a monitoring instrument of a whole machine and an alarm system, wherein the controller is connected with and controls the steering control and indication system, the electric control harvesting system, the electric control grain conveying system, the monitoring instrument of the whole machine and the alarm system. The harvester control system has the advantages of functions of concentrated monitoring, display, control and alarming, improved automation, strong adaptability, convenient maintenance, simple and comfortable operation, low labor intensity and high operation efficiency and the like.

The invention discloses a portable transformer substation noise imaging positioning detection device which comprises an imaging displaying mechanism and a noise detection mechanism which are connected via a coaxial cable, the noise detection mechanism comprises a noise sensor of which a matrix is arranged on a quadratic surface structure and a signal pre-treatment circuit; the imaging display mechanism comprises a display, a processor and a data memory connected with the processor; the processor is provided with a sound intensity mapping processing module for driving and displaying a sound intensity mapping figure to quickly judge a noise resource. According to the position of equipment to be detected in a transformer substation, a cubic data module of a quadratic surface is established, a three-dimensional coordinate system is established on the basis of the cubic data module, and pre-treatment and pre-displaying of a relative noise signal are performed, spurious imaging information is used for noise imaging, and quick fault positioning is achieved by analyzing a color ring band. The portable transformer substation noise imaging positioning detection device effectively improves the efficiency of overhauling and maintaining the transformer substation, is simple, convenient and practical, and has very high promotion and application values.

The invention discloses an indoor positioning and verification system based on WiFi, and the system comprises at least one RFID reader which is dispersedly disposed in a positioning region; at least three wireless AP machines dispersedly arranged in the positioning area; a mobile device connected with the at least three wireless AP machines and acquires wireless signal intensity; a positioning server used for acquiring wireless signal intensity and positioning the mobile equipment by adopting a differential algorithm. The mobile device is provided with an RFID electronic tag. When the mobile device enters a preset signal range of the positioning area, the RFID electronic tag sends an RFID signal to the outside. The at least one RFID reader receives the RFID signal and confirms that the mobile device is in a preset signal range. WiFi positioning is adopted for the mobile device, and when the mobile device enters a preset signal range, the RFID electronic tag is activated to send out a radio frequency signal. The RFID reader acquires the radio frequency signal and confirms that the mobile device is in a preset signal range, which indicates that the mobile device does not have a falsereport.

The invention discloses an electric angular-travel actuator which comprises a box. A box cover is fixedly connected onto the upper portion of the box, a braking motor is arranged below the box cover, the braking motor drives a gear to rotate by a motor gear shaft, the gear drives a planet reducing mechanism to move, the planet reducing mechanism drives a shaft extension gear to rotate, a bumper pin is arranged at a position, corresponding to the shaft extension gear, on the side wall of the box, two planes fitted to the bumper pin are arranged on the shaft extension gear, and a worm is located at the side of the periphery of the shaft extension gear to form an angle of 90 DEG with the shaft extension gear. The electric angular-travel actuator is suitable for an open-loop control system and a closed-loop control system in industrial process and can precisely control a valve and an air door reliably. The electric angular-travel actuator has the advantages of small size, light weight, multifunctionality, simplicity in mounting and wiring, convenience in maintenance, attractive appearance and the like and is widely applicable to industries of metallurgy, power, petrification, water treatment and the like.

The invention belongs to the technical field of electric switches, and provides a combined button with a ball, wherein a motor starting button and a motor shutdown button are integrated on the combined button with the ball. A rotating core and a sliding core are arranged on the inner side of a large barrel, the rotating core can only rotate left and right in the large barrel and can not slide up and down, and the sliding core can only slide up and down on the inner side of the rotating core. When the outer circle of the rotating core of the combined button with the ball is rotated by hand, a slope under the rotating core is used for pushing a normally-open contact push rod to enable a normally-open contact to be turned on, a contactor coil is powered and switched on, a main contact of a contactor is turned on, and a motor rotates; when an upper cover is pressed by hand, through the sliding core, a normally-closed contact push rod is pushed to enable a normally-closed contact to be turned off, the contactor losses power and stops working, and the motor stops working. The combined button with the ball has the advantages that installation and wiring are simple, and operation is simple and clear.

Provided is a multi-machine frequency converter, which may comprise: a master control unit, and N1 execution units coupled in series by means of a communications port, said N1 execution unit sharing a common DC bus; the first communications port of the master control unit is connected to the second communications port of the first of the N1 execution units; the N1 execution units comprise N11 rectifier units and N12 inverter units; N11 is a positive integer, and N12 is a positive integer greater than 1; said first execution unit is an execution unit located at an edge position of said N1 execution units connected in series by means of a communications port. The technical solution provided by the embodiments of the present invention is conducive to reducing the complexity of frequency converter wiring configurations in the context of multiple machines, improving the stability and reliability in multi-machine operation of frequency converters.

The invention discloses an electric bicycle intelligent charging system based on NB-IOT. The system comprises a user terminal, a cloud platform server and a plurality of direct current charging piles, and is characterized in that each direct current charging pile is provided with a first NB-IOT communication module which is in communication connection with the cloud platform server; the direct current charging pile is further provided with a control system; a man-machine interaction module is used for receiving a charging instruction of the cloud platform server; a microprocessor is used for controlling the operation of the direct current charging pile; an electrode detection module is used for detecting the polarity of a storage battery connected with the direct current charging pile; a power supply module is used for providing dynamic output voltage and current for charging the storage battery; a power supply module charges the storage battery by adopting a self-adjusting three-stage charging method; and an electric energy output control module is used for controlling on-off of a storage battery charging circuit. The polarity of the storage battery can be detected to avoid damage to the storage battery, a self-adjusting three-stage charging method is adopted to charge the storage battery, damage to the storage battery caused by charging when the storage battery is over-discharged is further avoided, and a safe, convenient and efficient charging system is provided for a user.

The invention relates to a one-line bus type ward calling system which belongs to the technical field of calling system. The system comprises a temperature sensor, a memory, a single chip, a display, a voice circuit, a speaker and a power supply, wherein an input end of the memory is connected with the temperature sensor, an output end of the memory is connected with the single chip; an LED display is connected with an output end of the single chip; an input end of the voice circuit is connected with the output end of the single chip; and an output end of the voice circuit is connected with the speaker. The temperature sensor measures temperature; and when fingers are put on the temperature sensor, the temperature sensor senses the temperature value and sends the temperature value to the single chip. The single chip judges the temperature rise on one hand, and sends voice alarm of ward number on the other hand; and the ward number is displayed by the LED display. The one-line bus type ward calling system has the advantages of low maintenance cost, good using effect and the like, and is simple, reliable to use and convenient for the nurses or doctors to see or listen.

The invention discloses a design method of an intelligent power supply electronic converter of a general-type railway signal lamp; a converter is connected in series between a current relay in a central control room and a railway signal lamp; an electro magnetic compatibility with three-stage series surge protection function, main and auxiliary power supplies, an active power factor correction circuit, an off-line DC-DC, a signal processing circuit of which the periphery is connected with all sorts of detection circuits and a state output control circuit are connected to form the intelligent power supply electronic converter. The design method adopts surge protection, a switch power supply, a microcontroller, signal collection and processing and other technologies, and has the advantages that installation and line connection are simple, without the limitation of installation distance; the power voltage provided for the railway signal lamp is constant, the total transfer efficiency is greater than or equal to 80%; the design method specially provides a new-type LED railway signal lamp with power and the old-type railway signal lamp can be directly used by internal installation without change of the optical system of the old-type railway signal lamp.

Provided is a motor automatic control device. A contactor and a main contact of a thermal relay are both connected in a motor power supply loop. A normally opened contact of a first intermediate relay, a press button TA, the contactor, a normally closed contact of a second intermediate relay and the thermal relay are sequentially connected in the 380V of power supply loop in series. A second normally opened contact of the contactor, the thermal relay and a pressurized indicator lamp are sequentially connected in the 380V of power supply loop in series. A second normally closed contact of the contactor and a shutdown indicator lamp are connected in the 380V of power supply loop in series. A power-loss indicator lamp is connected in the 380V of power supply loop. A contact P of an electric contact air pressure gauge is connected with +24V, and a contact P1 is sequentially connected with a first normally closed contact of the contactor and the first intermediate relay in series and then connected with -24V. A contact P2 of the electric contact air pressure gauge is sequentially connected with a first normally closed contact of the contactor and the second intermediate relay in series and then connected with -24V. The motor automatic control device has the advantages that over-temperature automatic shutdown is achieved, the contacts of the electric contact air pressure gauge are instantaneous electrified, and the service life is long.

The invention discloses a motor temperature protection device and especially relates to a motor-dual-protection automatic control device. A first branch is formed by an experiment button SB, a stop button SR, a contactor KM, a normally-closed contact 2KV-1 of a relay 2KV, a normally-closed contact 4KV-1 of a relay 4KV and a normally-closed contact FR-1 of a thermal relay FR, wherein the experiment button SB, the stop button SR, the contactor KM, the normally-closed contact 2KV-1 of the relay 2KV, the normally-closed contact 4KV-1 of the relay 4KV and the normally-closed contact FR-1 of the thermal relay FR are successively connected in series from a U phase of a three-phase power supply; the first branch is connected to a W phase of the three-phase power supply. The experiment button SB is connected in parallel with a normally-open contact KM-4 of a contactor KM, a normally-open contact 1KV-2 of an intermediate relay 1KV and a normally-open contact 3KV-2 of an intermediate relay 3KV. A second branch is formed by a contact 1SP-1 of a first electric contact air pressure gauge, a normally-closed contact KV-1 of the contactor KM and the intermediate relay 1KV, wherein the contact 1SP-1 of the first electric contact air pressure gauge, the normally-closed contact KV-1 of the contactor KM and the intermediate relay 1KV are successively connected in series from an anode of a direct-current power supply; the second branch is connected to a cathode of the direct-current power supply. By using the device of the invention, when one electric contact meter is damaged, a standby electric contact meter is rapidly used so that equipment is guaranteed not to be damaged easily and production reliability is increased.

The invention relates to a modularized three-phase four-wire active power filter. The active power filter adopts profiles to set up the frame structure of the complete machine or adopts standard distribution cabinet type. The active power filter is provided with the following five main functional modules based on functions: a circuit breaker module, a filter module, a converter module, a reactor module and a harmonic analyzer module. Different modules achieve the aims of electrical connection and data communication through corresponding hardware interfaces. The modules are respectively installed in boxes formed by the profiles according to function difference. The functions of the modules are relatively independent. Each module can be singly changed, thus being convenient for upgrading and capacity expansion of the functions and breakdown maintenance and improving the practicability and flexibility of the active power filter. The active power filter has strong anti-jamming capability and high filtering performance index, is stable and reliable and is convenient and simple in installation and wiring.

The invention discloses a power supply control system and method, printing equipment and a power supply control method thereof. The printing equipment comprises a first power supply circuit, a power module, a power management circuit, a main control circuit and a printing module. The first power supply circuit is connected with an external power supply module and supplies power to electric parts of the printing equipment; when the printing equipment is in a printing working mode, the power supply module serves as a second power supply circuit and supplies power to the power supply management circuit together with the first power supply circuit; and when the printing equipment is in a non-printing working mode, the power supply management circuit controls the first power supply circuit to charge the power supply module. According to the invention, the requirement of electric equipment such as a printer for high-peak current in a set working state can be met through a convenient interface, and a power adapter does not need to be configured. The cost of the whole machine is reduced, authentication of an adapter is not needed, the authentication cost is reduced, and installation and wiring are simplified.

The invention discloses a lighting device and a house video security monitoring system using the lighting device; the lighting device includes a lamp holder and a light bulb, and a power module for converting high-voltage alternating current into low-voltage power and a power supply module connected thereto are arranged in the lamp holder. MCU; the power supply module supplies low-voltage power to the MCU to control the bulb to turn on or off, and provides low-voltage power to the output port of the low-voltage power supply; the monitoring system includes lighting equipment around the house, embedded wire circuits for lighting equipment, and for security. For the monitored low-voltage power supply equipment, the embedded wire supplies power to the low-voltage power supply equipment through the low-voltage power output interface on the lighting equipment. While ensuring the normal use of house lighting equipment, the present invention uses the existing preset circuit to realize power supply to other low-voltage equipment, simplifies the installation and wiring of the video monitoring system, and realizes real-time safety monitoring through wireless network cameras and the like.

A smoke sensing method and device for detecting fire accident by reflected light beams features that the light signal transmitter and receiver are arranged at same side of detected space and a reflecting rectangular prism with reflection along original path is arranged at anothen side to form a single-source dual-chamber detection structure. Said device is composed of transmitting source, receiver and rectangular prism. Said transmitting source and receiver are on a same circuit board. Its advantages are better automatic compensation, intelligent comparison and high reliability.

The invention belongs to the technical field of garbage cans, and discloses an intelligent garbage can capable of being automatically disinfected. The intelligent garbage can comprises a movable can body and a wall-mounted fixed cover body; the cover body is in sealed fit with the top part of the can body, and an induction device is installed in one side of the cover body in an embedded manner; the cross section of the cover body is of an inverted U-shaped structure, and the top part of the can body is sealed in a U-shaped groove of the cover body; the outer wall of one side of the cover bodyis used for wall-mounted fixing, and the other side of the cover body is provided with a moving mechanism; the moving mechanism is used for opening the cover body, and when the cover body is opened, the can body can be taken out from the cover body; and at least one flip-open cover which can automatically overturn is embedded into the top part of the cover body, and the at least one flip-open cover cooperates with the induction device to execute contactless automatic opening and closing of the intelligent garbage can. In conclusion, the intelligent garbage can provided by the invention has theadvantages of being automatically open and close, and automatically disinfected, and having high safety, a reasonable structure, low cost and convenient use.

The invention particularly relates to an electromagnetic switch capable of switching delta-shaped and Y-shaped connection modes. The electromagnetic switch can change wiring methods for a motor. The electromagnetic switch comprises a shell, wherein one end of the shell is provided with three terminal blocks. The electromagnetic switch is characterized in that: two tripolar electromagnetic switch mechanisms are arranged in the shell; and the three input ends of each tripolar electromagnetic switch mechanism are connected with three input terminals respectively. The electromagnetic switch overcomes the shortcomings of troubles in mounting and wiring and high cost of the prior art in which the delta-shaped and Y-shaped connection modes of the motor are switched by an AC contactor, and has the advantages of low cost, mounting and wiring simplicity, and stable and reliable performance.

The invention discloses a cable applicable to an environment in an oil and gas well and used for connection of a wireless transmitting antenna as well as a production technology thereof. The cable comprises a center filling member, a plurality of insulated wires uniformly distributed at the periphery of the center filling member as well as an outer sheath wrapped outside the center filling memberand the insulated wires. The cable disclosed by the invention has the advantages that a high-temperature-resistant enameled round copper wire is adopted, and the overall outer diameter of the cable isreduced, so that long-term use reliability of the cable is improved, and service life of the cable is prolonged; meanwhile, an insulating layer does not need to be extruded outside a conductor in a production process, so that production working procedures of the cable are fewer, and the technology is simple; long-term tolerable temperature of the insulated wires and an outer sheath material reaches more than 200 DEG C, and the use reliability of the cable in a down-hole high temperature environment is improved; and the outer sheath adopts a pushing type technology, and the outer sheath material fills gaps among the insulated wires, so that the cable can stop high temperature liquid moisture from being penetrated into the interior of the cable in a down-hole high temperature and high humidity working environment, and service life of the cable is prolonged.