36results about How to "Reduce field wiring" patented technology

The invention discloses a medical transfusion liquid level real-time monitoring system and method based on wireless transmission. The medical transfusion liquid level real-time monitoring system comprises a nurse station monitoring center and multiple transfusion terminals, wherein each transfusion terminal comprises a power supply unit, a push-button unit, a wireless transmission unit, a singlechip, a display unit, a capacitive liquid level measuring unit and a signal converting unit; the nurse station monitoring center comprises a wireless transmission module, a power supply module, a microprocessor and a display terminal; the power supply unit, the push-button unit, the wireless transmission unit, the display unit and the signal converting unit are respectively connected with the singlechip; the capacitive liquid level measuring unit is composed of two metal sheets, and the metal sheets are opposite, clung and fixed outside a transfusion bottle to form a capacitor; and the transfusion terminals and the nurse station monitoring center are connected in a wireless communication manner, and the nurse station monitoring center is used for carrying out compiles processing on data and displaying and realizing monitoring of the nurse station monitoring center on the whole transfusion area. The medical transfusion liquid level real-time monitoring system and method can carry out concentrated and real-time monitoring on the transfusion condition of the whole inpatient area.

The invention discloses a method for directly generating a wiring phasor diagram by using inner data of an intelligent ammeter. The method comprises the following steps of extracting effective information from information of powerful inner data of the intelligent ammeter; directly generating the wiring phasor diagram of an ammeter metering loop by using software of a computer; and examining whether wires of a metering device are connected to one another mistakenly or not by using the wiring phasor diagram instead of a field calibration instrument. By using the method, field wiring is eliminated, and data are directly read from an infrared communication port or an RS485 communication port of the ammeter, and can also be remotely read from an electricity utilization information acquiring system; online monitoring of the metering device is realized; workers do not need to read the data on spot; and the method has a high effect during practical application.

The invention relates to a wireless multichannel vibration wire acquisition instrument and an acquisition method thereof, and is applied to structure safety health monitoring industry. The instrument comprises a channel chip selection plate, a signal conditioning circuit, a signal acquisition circuit, a single-chip microcomputer system, a storage circuit, an exciting circuit, a RTC circuit, a zigbee wireless communication module and a vibration wire sensor. The method solves the on-site deployment problems of the multichannel vibration wire acquisition instrument and the vibration wire sensor in structure safety monitoring industry, wireless mode is used, on-site wiring is reduced, some on-site complex construction environments are solved, and construction cost is reduced.

The invention discloses a passive wireless monitoring method for missile launching canister internal environment parameters. The passive wireless monitoring method comprises specific steps as follows: a passive wireless monitoring system for the missile launching canister internal environment parameters is established, an environment parameter master control terminal (1) modulates RF (radio frequency) excitation signals, an RF signal transceiver (2) outputs the RF excitation signals, a passive wireless pressure sensor (4) converts the RF excitation signals, a passive wireless temperature sensor (5) converts the RF excitation signals, a passive wireless humidity sensor (6) converts the RF excitation signals, and the environment parameter master control terminal (1) receives and processes RF echo signals, so that passive wireless monitoring of the missile launching canister internal environment parameters is finished. Field wiring in a missile launching canister storage bin can be reduced, operation of a worker can be simplified, and real-time, passive, wireless and automatic acquisition of the environment parameters such as the pressure, the temperature, the humidity and the like in a missile launching canister can be realized.

The invention relates to a wireless laser matrix monitoring system and method for surface area deformation observation, belongs to the technical field of surface area deformation observation, and aimsat solving the problems that in the prior art, surface deformation of a mining subsiding area, a landslide area and a crack area cannot be continuously observed. The wireless laser matrix monitoringsystem comprises an M*N field displacement detection array and a base station; in the field displacement detection array, each detection unit is configured with a corresponding target to form a detection node; the field displacement detection array is used for acquiring surface deformation conditions of the positions of all the laser detection units and sending the surface deformation conditions to the base station in a displacement information form; and the base station is sued for sending a driving signal to control the field displacement detection array to conduct data acquisition in a timing mode, receiving the information acquired by the field displacement detection array and conducting data processing on the information. According to the wireless laser matrix monitoring system and method, the surface deformation conditions can be continuously observed, and the installation coupling problem is solved.

The invention belongs to the technical field of electromagnetic starters and specifically relates to a mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter. The invention solves technical problems and provides the dual-circuit vacuum electromagnetic starter capable of measuring liquid level of a shaft sump and pipeline flow of a mine and automatically controlling two water pumps for water discharge. The technical scheme is that the mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter includes a shell body inside provided with two independent explosive-proof cavities; the two independent explosive-proof cavities are respectively inside provided with a host and a standby machine; and each of the host and the standby machine includes a comprehensive protector BH1 and a vacuum contactor KM1. The mine explosive-proof intrinsically safe dual-circuit vacuum electromagnetic starter provided by the invention is suitable for the field of electromagnetic starters.

The invention discloses a comprehensive parameter testing device for multifunctional coil equipment, which comprises: a main control board; a program-controlled test power supply module and a measurement unit module respectively connected to the main control board, and a display control part; an isolation transformer whose input terminal is connected to the main control board. The output terminal of the program-controlled test power supply module is connected; the main control board controls the output voltage of the program-controlled test power supply module through the serial port to continuously adjust the sine wave test power supply and control the orderly operation of the measurement unit module; the sine wave test power supply is output through the output terminal of the isolation transformer; The output end of the isolation transformer is provided with a voltage sensor and a current sensor; the measurement unit module calculates the voltage and current signals collected by the voltage sensor and the current sensor in real time and outputs the calculation result; the display control part receives and displays, prints, and stores Calculation results. The invention has the advantages of reducing the number of test equipment, reducing the labor intensity on site, and making the test work more efficient and reliable.

The invention relates to an automobile-mounted gas detecting device. The automobile-mounted gas detecting device comprises a gas sensor, a microprocessor, an automobile brake circuit and an alarming module, wherein the gas sensor is connected to an input end of the microprocessor; an output end of the microprocessor is separately connected with the automobile brake circuit and the alarming module;the automobile brake circuit is in wireless communication connection to an automobile-mounted controller; the gas sensor comprises an ethanol gas sensor, a carbon monoxide gas sensor and a PM2.5 gassensor; the ethanol sensor has a heater-type structure and comprises a ceramic tube; a sensitive material layer is arranged on the outer surface of the ceramic tube; a pair of gold electrodes is arranged on two sides of the sensitive material layer; a heating element is arranged in the ceramic tube; and the sensitive material is a mixture of hollow microspheres based on ternary metal sulfides, andis particularly a mixture of Cu1-XZnXS hollow microspheres and Y2O3 nano-powder.

The present invention relates to a controllable top control system based on the LonWorks field bus technology. Based on the LonWorks field bus technology, the system links a central control room PC machine and a field controller into a network through twisted pair cables; the rolling section and the yard section are respectively provided with a speed measuring device; and the field controller are connected with the speed measuring devices. Compared with the prior art, the present invention has the advantages that the LonWorks field bus technology conveniently links all the equipment to form an interoperable network through the twisted pair cables, which greatly saves the field wiring; the speed measurement, the length measurement and the controllable top group control of each track and the rolling part are completed by the nearby filed controller, which provides high real-time performance; and the performance of the controllable top control system is superior to the completely decelerating top speed control system, and the investment in the equipment is lower than the investment in the reducer and other equipment, so the present invention is in particular suitable for medium- and small-sized hump.

The invention provides a capacitive intelligent station detection system. The capacitive intelligent station detection system comprises a capacitance detection sensor, a capacitive sensing module, a microprocessor module, a remote management platform and a mobile APP; the capacitance detection sensor detects a change in capacitance when a human body approaches, and after the change in capacitanceis processed by the capacitive sensing module, the change in capacitance is sent to the microprocessor module to form station state data, and the station state data are sent to the remote management platform; and the remote management platform processes the station state data to obtain user habit data. A user obtains relevant data through the remote management platform by using the mobile APP, andsends debugging and control information to a station detection device. The capacitive intelligent station detection system provided by the invention uses the capacitive sensing module, so that the capacitive intelligent station detection system is small in volume, good in concealment and beautiful in appearance flexible in design, requires no complicated optical and microwave device, has no mechanical device, is unlikely to age or wear, and is long in service life and good in consistency. The remote management platform serves as a data management and control center, the mobile APP provides man-machine two-way interaction to realize linkage energy-saving management and personnel management of office appliances.

The invention discloses a power line type field bus coal bunker continuous level detection device, which comprises a plurality of continuous level meters and a power supply system connected with the plurality of continuous level meters respectively. Each level meter comprises an outer shell, a level sensor, an analog/digital (A/D) converter which is connected with the level sensor and performs A/D conversion on a signal detected by the level sensor, a micro control unit (MCU) processor connected with the A/D converter, and an input/output (I/O) communication interface connected with the MCU processor, wherein the MCU processor is connected with a main programmable logic controller (PLC) control system through the I/O communication interface and a looped network consisting of cables; and each level meter is connected in parallel at a control end of the main PLC control system through the looped network. The device is simple in structure, reasonable in design, convenient to install and arrange, stable in signal transmission, simple and practicable, and can effectively solve the problem of remotely monitoring a plurality of continuous level signals in a coal conveying system in real time.

The invention discloses a method of a plasma arc welding process and motion centralized control system. A GUC-EtherCAT multi-axis motion controller is used as a control system core, a servo motor and a stepping motor are respectively used as a welding motion control unit and a welding process control unit, and carry out control through a matched servo motor driver and an Ethercat stepping motor driver; a plasma arc welding process and motion centralized control system is designed for a special welding machine. According to the system, a special plasma arc welding machine and a rectangular coordinate system robot are used as carriers, and the process control of the special welding machine and the motion control of the rectangular coordinate system robot are integrated into a GUC-EtherCAT multi-axis controller for unified control, so that a whole set of plasma arc welding control system is integrated. Compared with the prior art, the method has the advantages that the defect that welding process control and motion control are independent is overcome, the welding process control and the motion control can work cooperatively, and complex field wiring can be effectively reduced when a PLC control box is used for control.

The invention provides a method for realizing remote operation of motor start and stop and state display through a CAN bus. The method is characterized in that the method comprises the following steps: 1, a plurality of operation column remote control display units and a plurality of motor protectors in a switch cabinet are connected through one CAN bus; 2, communication parameters of the CAN busare set; 3, the operation column remote control display units on operation columns control a motor to start and stop; and 4, the operation column remote control display units monitor the operating state of the motor. According to the method, only one twisted-pair communication line (2) is needed on site, and if the distance between the plurality of operation columns is short, the plurality of operation columns can share one communication line, so that the on-site wiring is greatly reduced.