44results about How to "Long data transmission distance" patented technology

A vacuum box system for laser processing mainly comprises a shielding gas system, a vacuum chamber, a vacuum obtaining system, a cooling system, a three-dimensional worktable, a powder delivering system, a computer control system and an electronic control system. The three-dimensional worktable is fixed in the vacuum cavity; the shielding gas system, the powder delivering system and the vacuum obtaining system are connected with the vacuum chamber through tubes; the cooling system is in system connection with the vacuum chamber and the vacuum through tubes; and the computer system and the electronic control system are connected with the vacuum chamber, the powder delivering system and the vacuum obtaining system through electric wires. The vacuum box system adopts manual manner to control processes of vacuumizing and charging shielding gas; the operation process is simple, safe and reliable; and the vacuum box system can realize laser processing in three-dimensional space under vacuum environment or shielding gas environment.

An automatic measurement track inspection car comprises a frame body. The automatic measurement track inspection car is characterized by further comprising stepping motors, a control processor, a track gauge, an inkjet device and a power supply; the stepping motors are arranged at the two ends of the frame body, and the stepping motors drive the frame body through wheels connected with the stepping motors; the track gauge is arranged at the bottom of the frame body, and the track gauge is connected with the control processor through a data line and/or a wireless communication module and used for transmitting detection data; the inkjet device is arranged on the frame body and used for conducting inkjet marking on a steel rail; the stepping motors, the inkjet device and the power supply are all connected with the control processor. The automatic measurement track inspection car has the advantages that automatic measurement track gauge can completely replace operation of linemen in the operation of a product, and automatic cycle operation is achieved. The automatic measurement track gauge locates accurately, and an out-of-tolerance measuring point has an obvious inkjet maker. Convenience is brought to the linemen on service-side screening and inkjet marker inspection.

The invention discloses a GSM-based intelligent household electricity larceny prevention ammeter meter reading system with high heat dissipation performance, and belongs to an ammeter meter reading system used in an intelligent household in the field of an intelligent household technology, for the purpose of providing an intelligent household electricity larceny prevention ammeter meter reading system advantaged in far data transmission distance and rapid data transmission rate. The system provided by the technical scheme comprises an ammeter case, a gather, a GSM communication module and a controller. An ammeter register assembly and a rest register assembly of an ammeter in the ammeter case are electrically connected with the gatherer, the gatherer is electrically connected with the GSM communication module, and the GSM communication module is electrically connected with the controller. The system provided by the invention is applied to the ammeter meter reading system in the intelligent household.

The invention discloses a real-time monitoring data transmission device for snow depth change. The device comprises a shell and an upright rod, the shell comprises a storage box and a cover plate, thestorage box is internally provided with a high power lithium battery, a microprocessor and an electric quantity monitoring module, and a GPS module, a Bluetooth module and a LoRa radio-frequency transceiving module are electrically connected to the microprocessor; a door plate is connected to the cover plate, and an electromagnetic lock is arranged at the end of the door plate; a fingerprint unlocking device is arranged on the upright rod, a solar panel assembly is fixed to the middle of the upright rod, and the power output end of the solar panel assembly is connected with the high power lithium battery; a distance measuring sensor is arranged at the other end of the upright rod, a main control switch which is electrically connected with the microprocessor through a wire is electricallyconnected to the distance measuring sensor, and the microprocessor is electrically connected to the main control switch through a signal line. The real-time monitoring data transmission device has theadvantages that the device is intellectualized, saves energy, has long battery life, a good sealing effect, high corrosion resistance, and a long data transmission distance, and is convenient to manage.

The invention discloses a data acquisition monitoring system based on an SMS module, mainly comprising an environment monitoring sensor, an SMS module data collector, an SMS server, a database server and a LAN. A user is connected with the LAN; the LAN is connected with the database server and the SMS server through a hub; the database server is connected with the SMS server through a data pipeline; the data transmission between the database server and the SMS server is bidirectional. The SMS server is connected with the SMS module data collector through a data line; the data transmission between the SMS server and the SMS module data collector is also bidirectional. The environment monitoring sensor is also connected with a hardware module of the SMS module data collector through an A/D converter. The invention is characterized by high network degree, accurate data acquisition method, easy development and maintenance, strong commonality and high integration.

The invention relates to a tunnel surrounding rock deformation automatic monitoring and early warning system which is characterized in that: a sensor unit (1) sends acquired data to an MCU module (2) after digital processing, the MCU module (2) carries out a preliminary treatment on the data and sends the data to a computer software unit (5) through an RS 485 data communication module (3), a power supply module (4) supplies power for the sensor unit (1), the MCU module (2) and the RS 485 data communication module (3), after data processing, the computer software unit (5) can send an AT instruction to an GPRS module (6) when is in danger, and the GPRS module (6) receives the instruction and sends early warning information to a preset mobile phone (7) to realize an automatic early warning function. Technical personnel such an expert, an engineer and the like are facilitated to carry out data analysis, and original data is provided for discovering a roadway deformation rule. In the invention, a database and figure analysis software can be arranged to connect with the computer software unit, and acquired analysis data can be automatically stored into a database and image analysis software of a computer. The system has the characteristics of strong multi-site capability, a long data transmission distance, simple operation, a small volume of a single monitoring station and a light weight, and is especially suitable or deformation monitoring of various mine tunnel engineering.

The invention provides a non-contact micro displacement measuring device and method based on a linear array CCD (charge coupled device). Laser emitted by a horizontal linear laser is irradiated on the linear array CCD, and a light sensing pixel outputs a signal under the action of a drive pulse; when the output signal exceeds a set background threshold voltage, a threshold comparator outputs rectangular pulse strings; and after the rectangular pulse strings at different moments are processed, the central positions of the rectangular pulse strings are respectively obtained, thus obtaining the absolute displacement of the linear array CCD between different moments. The number of rectangular pulse signals output by a threshold adjuster is determined by the comparison result of the threshold voltage and the output signal voltage of the linear array CCD; and a central processing unit is mainly used for concerning the number of the rectangular pulse signals output by the threshold adjuster, therefore the device provided by the invention facilitates the process control regulation, is high in precision and small in noise, can store optimal operating point data output by a digital potentiometer, and provides data supports for regulating the output of the digital potentiometer in different environments.

The invention discloses a directional antenna alignment system and method for a wireless communication system of a stacker-reclaimer, and relates to the field of Ethernet communication. The directional antenna alignment system for the wireless communication system of the stacker-reclaimer comprises an antenna support, a ground calibration platform, a bidirectional vertical laser beam projection component, a perpendicularity measuring component and a reflector alignment assembly, wherein the antenna support is used for fixing a directional antenna at the appropriate position of the stacker-reclaimer and the ground; the ground calibration platform is used for providing a ground benchmark reference; the bidirectional vertical laser beam projection component is used for projecting bidirectional laser beams which are perpendicular to each other to form laser surfaces which are perpendicular to each other; the perpendicularity measuring component is used for adjusting the directional antennaplane to be perpendicular to the horizontal plane; and the reflector alignment assembly is used for displaying a laser projection line, enhancing a visual effect of the bottom edge of the directionalantenna plane and prolonging the bottom edge line of the directional antenna plane to improve the alignment precision. According to the technical scheme, accurate alignment of the directional antennais achieved, and the alignment method has the advantages of being high in alignment accuracy, simple in operation procedure, low in cost and easy to master by the field maintenance personnel.

Disclosed in the invention is an RFID-based wireless router comprising a power supply circuit, a power-on reset circuit, a network processor, a network transformation chip, a transformation control chip, a first network isolation chip, a second network isolation chip, a serial interface, a data memory, an indicator light circuit, a power supply circuit, an RFID middleware and an RFID reader. The wireless sensor network and the RFID are combined, so that the data transmission distance is long and the node position can be located accurately; and the cost is saved.

The invention discloses a 3G network based smart home gas stealing preventing wireless gas meter reading system, belonging to gas meter reading systems in the technical field of smart homes and aiming to provide a 3G network based smart home gas stealing preventing wireless gas meter reading system with higher reliability and real-time property. The problem that the installation stability of magnetic steel in counters of existing gas meters is poorer can be solved. The system comprises gas meters, MSP430F149 microprocessors, Si4432 modules, concentrators and a CPU (central processing unit), wherein an inductor identification circuit in each gas meter is electrically connected with each MSP430F149 microprocessor; each MSP430F149 microprocessor is electrically connected with each Si4432 module; each Si4432 module is connected with each concentrator by a wireless network; each concentrator is connected with the CPU by a 3G network. The gas meter reading system is suitable to use in smart homes.

The invention discloses a GSM-based intelligent household electricity-stealing prevention electricity meter reading system, belongs to an electricity meter reading system used for intelligent household in the technical field of intelligent household, and aims at providing the GSM-based intelligent household electricity-stealing prevention electricity meter reading system which is long in data transmission distance and high in data transmission speed. The technical scheme is that the GSM-based intelligent household electricity-stealing prevention electricity meter reading system comprises an electricity meter box, an acquisition device, a GSM communication module and a controller. The electricity meter counter component and the reset counter component in the electricity meter box are electrically connected with the acquisition device. The acquisition device is electrically connected with the GSM communication module. The GSM communication module is electrically connected with the controller. The invention is suitable for the intelligent household electricity meter reading system.

The invention discloses a health condition monitoring device for a driving part of a permanent magnet synchronous motor for a monorail crane. The health condition monitoring device comprises a data acquisition and data transmission gateway and a monitoring mechanism, an LSTM and a full-connection network are deployed on a data acquisition and intelligent analysis device, and real-time monitoring and intelligent analysis of the abnormal working condition of a driving part are completed at an edge end. The data transmission gateway receives an analysis result or abnormal data sent by the acquisition and intelligent analysis device through the LoRa wireless transmission module, and transmits the analysis result or abnormal data to the cloud server through the industrial Ethernet ring network and the router, thereby realizing data interaction between the sensing node and the cloud server. Circumferential temperature detection is carried out on the permanent magnet synchronous motor, and a basis for judging the friction condition of a bearing or a stator and a rotor in the permanent magnet synchronous motor during rotation is provided for operators; and the rotation concentricity degree of the output shaft during operation of the permanent magnet synchronous motor is monitored in real time.

The invention discloses a ventilation and heat dissipation type electric energy GSM (global system for mobile communication) data acquisition system applied to community services, belonging to data acquisition systems in the technical field of community services. The system comprises boxes, box covers and electric meters, wherein bottom clamp slots are formed in the boxes; top clamp slots are formed in the box covers; the boxes and the box covers are connected by top clamp blocks in a clamping manner; the two adjacent boxes are connected by bottom clamp blocks in a clamping manner; ventilation and heat dissipation holes are formed in the boxes; heat dissipation covers are connected on top surfaces of the boxes; metering modules in the electric meters are connected with concentrators by M-BUS; the concentrators are connected with data processors by a remote communication WAN (wide area network); the data processors are accessed to a GSM network via GSM transmitters; and a GSM receiver is used for receiving the information of the GSM network and is connected with a handheld terminal. The electric energy information data acquisition system is applicable to community services.

The invention discloses an intelligent household gas meter wireless meter-reading system based on 3G network, belongs to the gas meter meter-reading system in the technical field of intelligent household, aims to provide the intelligent household gas meter wireless meter-reading system based on the 3G network and having higher reliability and real-time performance, and can solve the problem that magnetic steel in a counter of a conventional gas meter has relatively poor installation stability. The system includes a gas meter, an MSP430F149 microprocessor, an Si4432 module, a concentrator and a central processing unit; an inductor identification circuit in the gas meter is electrically connected with the MSP430F149 microprocessor, the MSP430F149 microprocessor is electrically connected with the Si4432 module, the Si4432 module is connected with the concentrator through the wireless network, and the concentrator is connected with the central processing unit through the 3G network. The gas meter wireless meter-reading system is suitable for intelligent household.

The invention discloses a wireless emission type high-precision gas detector which comprises a front cover and a rear cover, an alarm is arranged above the front cover, a first sensor, a second sensor, a third sensor and a fourth sensor which are arranged in a rhombus shape are arranged above the front cover, and a liquid crystal display is arranged on the front cover and located below the first sensor. An analysis processing module is arranged behind the liquid crystal display, a storage battery is arranged below the rear cover, and a microwave wireless transmission module is arranged above the rear cover. The gas detector has the beneficial effects that the accuracy of the detected gas concentration can be ensured by adopting the three groups of identical gas sensors, the direction of a gas source can be directly obtained, and the detection speed is high; through the microwave wireless transmission module, real-time transmission of detection data and position can be realized, the transmission distance is long, flow is not needed, and meanwhile, an accident detector can be quickly rescued; the gas detector is accurate in detection, high in practicability, high in safety, long in data transmission distance and capable of sharing detection data in real time.

The invention discloses a smart-home gas-stealing-preventing gas meter reading system based on a GSM, belongs to gas meter reading systems in the technical field of smart homes, and aims at providing a GSM smart-home gas-stealing-preventing gas meter reading system long in data transmission distance and high in data transmission speed. According to the technical scheme, the smart-home gas-stealing-preventing gas meter reading system comprises gas meter boxes, collectors, GSM modules and controllers; a partition plate for dividing an inner cavity of each gas meter box into a gas meter chamber and a meter reading chamber is vertically arranged in the gas meter box, a gas meter is arranged in each gas meter chamber, an electromagnetic lock used for locking each partition plate is arranged on the inner wall of the corresponding gas meter box, and an electromagnetic lock unlocking controller is electrically connected to each electromagnetic lock; a sensor of a counter is electrically connected with each collector, each collector is electrically connected with the corresponding GSM module, and each GSM module is electrically connected with the corresponding controller. The scheme is suitable for the smart-home gas meter reading system.