30results about How to "Realize abnormal alarm" patented technology

The invention relates to a conveyer belt operation monitoring system and method. The conveyer belt operation monitoring system comprises a data processing module, a voltage converting and detecting module, a vibration sensor, a temperature sensor, a displacement sensor, a wireless communication module and an upper computer, wherein the voltage converting and detecting module is used for monitoring a pull switch; a single-chip microcomputer is used for reading a voltage outputted by a voltage converting circuit, performing A/D conversion, performing packing and performing encapsulating; the wireless communication module is used for sending the packed and encapsulated voltage data to the upper computer; the vibration sensor is used for acquiring vibrating data of a gear box; the temperature sensor is used for acquiring temperature data of the gear box; and the displacement sensor is used for acquiring the axial displacement offset of a conveyer belt roller. Through the adoption of the conveyer belt operation monitoring system and method disclosed by the invention, the comprehensive real-time accurate monitoring of the operation state of the conveyer belt system can be realized, so that the problems that a conveyer belt pull switch are difficult to detect and position in a flash manner are solved, and the functions of prejudging failure trend of the gear box, warning abnormal situations, warning the situation that shaft scurrying is generated on a driving roller are realized.

The invention discloses an underground coal bunker coal level detecting method based on the image processing technology. The method comprises the steps that firstly, an enhancement type camera ICCD is utilized for collecting images of a coal bunker according to the range gating laser active imaging technology; collected analog signals are converted into digital signals through a video decoder SAA7113H, wherein the digital signals can be processed through a DM642 chip; the DM642 chip is used for reading image data from a memorizer and filtering the image data; the edge extraction is carried out on the filtered images by combining the advantages of the BEMD decomposition, mutual information entropy and image overlapping; the coal level height information is extracted according to the coal level detecting and recognizing algorithm that the geometrical information of the scenery based on the pre-determined geometrical information in the lighting. The method is high in distance measuring precision, good in anti-interference performance and high in real-time performance, solves the key problem of coal mine safety production monitoring and communicating and plays a positive, real and long-term significant role on coal mine safety production and economical benefit increasing.

The invention discloses and provides a medical oxygen terminal device and a medical oxygen on-line monitoring system which are simple in structure and low in cost, and have medical oxygen multi-parameter integrated monitoring function, alarm function and remote monitoring function. The medical oxygen on-line monitoring system comprises a remote monitoring device (1) and at least one medical oxygen terminal device (2), wherein the medical oxygen terminal device (2) is connected with the remote monitoring device (1) by a network; the medical oxygen terminal device (2) comprises a centralized oxygen sampling unit (21), a data acquisition unit (22), a display device (23), an alarm device (24) and a remote data transmission device (25); and the centralized oxygen sampling unit (21), the display device (23), the alarm device (24) and the remote data transmission device (25) are respectively and electrically connected with the data acquisition unit (22). The medical oxygen terminal device and the medical oxygen on-line monitoring system are applied to the field of medical gas supply.

The invention discloses an enterprise production status diagnosis method based on cloud fusion and a digital twinning technology. The method comprises the following steps: 1, dividing production resources and operation data in an enterprise production process; 2, virtualizing or digitalizing a physical entity workshop through a certain mapping relationship and data obtained by predicting the twinsystem to form a twin workshop; 3, predicting the obtained data of the production elements of the twinning workshop by using an artificial intelligence technology and a digital twinning technology; 4,diagnosing and improving the system; 5, enabling the monitoring system to monitor risks existing in enterprise production; and 6, realizing real-time interactive connection between the cloud serviceplatform at the cloud side and the physical entity workshop at the end side by using a cloud fusion technology, and feeding back the characteristics of data, optimization schemes and the like obtainedat the cloud side to the physical entity workshop through twin workshop projection, thereby satisfying an adaptation mechanism of each entity in the physical entity workshop. The production efficiency of enterprises can be improved, the current production situation of the enterprises is improved, and the product output quality is improved.

The invention provides a microelectronic phase-sensitive receiver. The microelectronic phase-sensitive receiver is simple in structure, can accurately and reliably trigger a relay to work and achieves the abnormity alarm function and the like. According to the microelectronic phase-sensitive receiver, two measurement circuits with an MCU1 and an MCU2 as cores are the same in structure, local voltage and track voltage are connected to A/D input pins of the MCUs through miniature mutual inductors, the MCUs collect two paths of voltage waveforms of a period, the initial phase angles and the effective values of the two paths of signals are calculated through a Fourier transform algorithm, a phase difference is solved, logic judgment is carried out, square signals are output when the condition is met, amplification, isolation transmission and rectification filter are carried out on the square signals, and the square signals wait for selection and output. An MCU3 collects and calculates four paths of voltage, a result is compared with a processing result of the MCU1 and a processing result of the MCU2 respectively, whether the voltage is normal or not is judged, one path of voltage is selected according to a set strategy, an output voltage amphenol connector outputs direct current voltage to enable a 1700 relay to work, and an alarm signal is given out if necessary.

The invention provides an intelligent LED constant-current control power supply device. Through arrangement of an active effective power correction unit, a power switch converting unit, a transformer primary peak locking unit, a constant-current output unit, a load voltage/current detection unit, an error generation unit, a driver adjusting and protecting unit and the like, constant-current driving of a high-power LED is achieved; through arrangement of an LTE remote communication unit and a WLAN unit, LED remote control and abnormity warning are achieved, and the reliability and stability are high.

The invention discloses a piston and pneumatic type 3D printing biological material extrusion test device. The piston and pneumatic type 3D printing biological material extrusion test device comprisesa box, a piston component, a mixing component, a pushing component and an air pressure component and is characterized in that a temperature-adjustable extrusion test environment is formed in the box;the piston component comprises a cylinder, a piston and a piston rod, one end of the cylinder is provided with a needle, guide channels communicated with the cylinder are arranged in the piston rod and the piston, materials mixed by the mixing component flow into the cylinder, materials in the cylinder are extruded by the piston rod pushed by the pushing component, and the materials in the cylinder can also be extruded by feeding air flow into the guide channels; various data is collected through a displacement sensor and a pressure sensor during the material extrusion, and the materials arereceived by a receiving plate and weighed by an electronic scale. By the structure, the test device has the advantages that high precision is achieved, test efficiency is increased, the labor intensity of test staff is lowered, the extrusion curve of the test materials can be measured in real time, and data and guidance can be provided for actual production and design.

The invention discloses a remote infant monitoring system based on a wireless sensor network, and belongs to the technical field of Internet of Things. The monitoring system comprises a data acquisition module, Kinect equipment, an upper computer and a main control module; the data acquisition module is used for acquiring environment information and sending the environment information and the heartbeat packet to the main control module and the upper computer; the Kinect equipment is used for collecting and analyzing infant information and sending the infant information to the upper computer; the upper computer is used for storing and transmitting the environment information and the infant information and sending the infant information to the main control module through serial port connection; the main control module is used for analyzing the environment information and the heartbeat packet; meanwhile, the infant information returned by the upper computer is analyzed; and when the environment information and the infant information are abnormal, alarm information is sent to the outside. According to the invention, intelligent monitoring and abnormal alarm are effectively realized, sothat the infant can be intelligently monitored in real time.

The invention discloses a power supply distribution cabinet which is provided with a power supply monitoring device therein. The power supply monitoring device includes: a main circuit monitoring module which is connected to a main circuit power supply of the power supply distribution cabinet and is intended for monitoring a main circuit voltage and a main circuit current of the main circuit power supply and calculating electric quantity of the main circuit; a branch circuit monitoring module which is connected to a branch circuit power supply on the power supply distribution cabinet, and is intended for monitoring a branch circuit voltage and a branch circuit current of each branch circuit power supply and calculating the electric quantity of each branch circuit, wherein each branch circuit power supply is obtained by the distribution of the main circuit power supply; a processor which is intended for calculating power supply usage efficiency of the power supply distribution cabinet; a communication module which is in separate connection to a monitoring terminal and the processor, and is intended for transmitting the power supply usage efficiency of the power supply distribution cabinet to the monitoring terminal. Through the aforementioned methods, according to the invention, the power supply distribution cabinet implements monitoring of the power usage efficiency of the power supply distribution cabinet and sounds alarm when abnormity happens.

The invention provides a rolling code learning detection method and device, equipment and a computer readable storage medium; the method comprises the following steps: gathering message data; determining whether the message data rolling code rolling mechanism has been learned or not; if not, learning the rolling code rolling mechanism; detecting whether the rolling code is abnormal or not according to the rolling code rolling mechanism; if yes, forming abnormal information and uploading the same. The method can automatically learn the rolling code rolling mechanism from the gathered message data, thus detecting the rolling code in the message data in real time, realizing abnormity alarming, timely responding to abnormal data, and preventing packet loss risks in detection after the messagedata is uploaded.

The invention discloses an intelligent control gateway for a building. The intelligent control gateway comprises a display module, a control module, an input and output module, a protocol conversion module, a data processing module, a power module, a heat dissipation module, a network communication module and an inspection module. The gateway employs the modularized customization, and two ARM7 processors are configured to achieve real-time data receiving, control command transmission and the fault automatic switching of a main processor; the gateway is provided with a lithium battery and can work for 8 hours under the condition of power failure; the gateway can adjust the data transmission rate of the specified point location according to the point location polling frequency requirement; aplurality of building intelligent control gateways in the same local area network can allocate network bandwidths according to the number of point locations and polling frequency requirements, so intelligent cooperative work is realized; the gateway supports the digital quantity and analog quantity input and output and RS-232, RS-485 and CAN bus communication; data can be transmitted in wirelessand wired manners, a management computer and a mobile terminal can perform the flexible checking, and the gateway is widely applied to intelligent engineering of buildings.

The invention discloses an intelligent magazine lock system. The intelligent magazine lock system comprises a magazine end, a hand-held terminal and a background management end; and the hand-held terminal is in wireless connection with the magazine end by the background management end. According to the invention, background authorization management of use of a magazine can be implemented, and in aspecial case, an effect of unlocking by inputting a password for use can be achieved, so that safety and reliability of magazine management are improved; a position of the magazine can be monitored so as to prevent loss of the magazine; remote management and abnormity warning can be implemented for the magazine; and rapid bullet supply can be implemented in a case of not reducing bullet use efficiency.

The invention provides a temperature-humidity detection and early warning system of a firework and firecracker production place. The system comprises a detection end, a first control end and a second control end, the detection end comprises a temperature and humidity sensor and a detection host, the first control end comprises a first control host, the second control end comprises a second control host, the temperature and humidity sensor is connected with the detection host, the detection host is connected with the first control host via network switches, and the detection host and the first control host are provided with alarms respectively. The temperature and humidity are collected by the detection host and sent to the first and second control ends, the temperature and humidity of the firework and firecracker production place can be monitored and warned against abnormity, the system is characterized by high detection precision and high reliability, a temperature and humidity detector is combined with software to form an intelligent early warning system, the safe production and management performance in the firework and firecracker industry can be improved, and accidents can be effectively prevented.

The invention discloses an electric automobile charging system. The electric automobile charging system comprises a charging control board, wherein a central processing unit, an electric signal acquisition circuit, an overload protection circuit and an alarm circuit are arranged on the charging control board, the electric signal acquisition circuit is connected to a voltage transformer and a current transformer which are arranged on a charging gun, and the central processing unit is connected to the electric signal acquisition circuit, the overload protection circuit and the alarm circuit. According to the electric automobile charging system, the structure principle is simple, collection of the charging voltage and the current signal can be realized, meanwhile, overload protection can be realized, abnormal alarm of the power supply can be realized, and normal use of a charging pile is ensured.