61results about How to "Realize real-time remote monitoring" patented technology

The invention discloses a belt detection alarming system based on laser ranging, which adopts a noncontact measuring principle, and can effectively avoid the faults such as missing and error in report of a stroke switch measurement due to the influence of a contact environment. The system adopts a centralized data processing way, realizes the accurate measurement and monitoring simultaneously for multiple belts, the surface of a material is scanned by virtue of a laser scanning ranging device, a distance value from a laser head to the surface of the material is acquired, an edge position of each belt is acquired by virtue of the distance value, the edge position is compared with the belt edge position recorded when the device is calibrated, whether the belt is deviated or not can be judged, when the belt is deviated, a belt control device is notified to make corresponding action by transmitting a pulse control signal, and the belt device is prevented from being damaged. According to the system, fewer devices and parts are used, the structure is simple, the detection reliability is high, the system maintenance cost is low, and the belt detection alarming system is suitable for being popularized in various transport belt application industries.

The invention discloses a gateway device base on multi-antenna data information fusion. According to the device, a wireless signal gathering module is in charge of collecting information of a wireless sensor terminal, and fusing collected signals through a data conversion module; and wired Ethernet, CAN bus, or RS485 and other various communication modes are chosen to use according to the actual network deployment at a scene to send the collected data to a remote control terminal, wherein when data transmission is conducted between the wireless signal gathering module and a wireless sensor network node, a multipoint-multipoint communication is realized by selecting the multi-antenna technology and the frequency division multiplexing technology, so as to not only improve the scene information multiplexing efficiency, but also can allow the channel capacity to dynamically exchange channels according to working requirements of each module; the collected data are subjected to conversion and packaging of a data protocol by the data conversion module according to network transmission requirements, and packaged signals are transferred to a remote control terminal by the data conversion module, so as to improve the versatility of the gateway device in an industrial scene.

The invention discloses a long-distance water environment monitor and monitoring method based on Zigbee and GPRS (General Packet Radio Service). The long-distance water environment monitor and monitoring method is to divide the water area needed to be monitored into a plurality of small monitoring areas, a plurality of secondary node modules and a main node module are configurated in each monitoring area and the secondary node module and the main node module in the whole monitoring area are connected in a star-like mode. A water quality parameter collecting module collects water quality parameters and sends the parameters to a second zigbee wireless communication module, the second zigbee wireless communication module sends the parameters to a first zigbee wireless communication module in a relay transmission mode through the zigbee protocol networking, ARM (Advanced RISC Machines) processer fuses and processes data and transmits the data to long-distance end network monitoring center through a GPRS module, the main node module controls the entrance and exit of the secondary node module and monitors the working condition of the secondary node module and the Zigbee and GPRS technology are combined to monitor the water environment in real time at the long-distance end.

The invention relates to a system for realizing real-time remote monitoring based on satellite communication. The system comprises a dumb terminal, a Tiantong-01 satellite, a satellite antenna, a ground gateway station, a telecommunication gateway and a terminal application system, which are in communication connection in sequence, wherein the telecommunication gateway is externally connected to an LTE base station and a user computer terminal; an application gateway server and an application control server are integrated on the terminal application system; and the application control server is externally connected to a Web application server, an application service configuration terminal and a real-time monitoring terminal. According to the system, the real-time remote monitoring is realized based on the satellite communication, so that the delay of monitoring data transmission and display is avoided, an effect of live broadcast is realized at places which cannot be covered by a geodetic network, and the real-time monitoring is realized at the places, which have higher real-time requirements for videos, such as scientific investigation, fire protection and disaster prevention.

A remote and real-time ground surface settlement monitoring system based on the connected vessel principle consists of three parts, namely, a ground monitoring network, a remote and real-time data transmission system and a remote monitoring system, wherein settlement information of the ground monitoring network is transmitted to an optical fiber demodulator, the optical fiber demodulator demodulates the settlement information and transmits the demodulated information to a data acquisition wireless transmitter of the remote and real-time data transmission system after demodulation, GPRS is used for wireless transmission, and finally, a data receiver of the remote monitoring system receives the information and transmits the information to a computer for data processing and real-time display. The system can realize automatic, real-time and remote monitoring of large-area surface settlement and can be popularized and applied to areas such as airports, large building groups, high-speed railways, tunnels and the like which require large-area surface settlement monitoring.

The invention relates to an information playing management system and an information playing management method. The system comprises a management host, a plurality of remote players and a server, wherein the remote player comprises a display screen; the server is provided with a memory for storing a program database; the management host, the server and the plurality of remote players are in communication connection by a public network; the management host is provided with a program broadcasting plan edition module and a play list generation module; the program broadcasting plan edition module is used for making a program broadcasting plan according to a received external instruction, and transmitting the program broadcasting plan to the server; the play list generation module is used for generating a play list based on the program broadcasting plan, and transmitting the play list to the remote players; and the server simultaneously transmits program data to the remote players. By the system and the method, remote unified networking management can be performed on the remote players by the public network with low management cost. In addition, scheduling and broadcasting can be conveniently and flexibly realized to further realize intelligent management, and difficulties in information playing management are reduced.

The invention relates to a method for remotely monitoring running mileage of a hybrid vehicle. The method is realized on the basis of a remote monitoring system. During running of a vehicle, a whole-vehicle controller calculates a running mileage value of the vehicle at the moment, and transmits the real-time running mileage data of the vehicle to a network operator server through a wireless transceiver module and a wireless communication network; the real-time running mileage data is transferred by the network operator server and transmitted to a monitoring system user terminal through an internet communication network; a technician on the user terminal analyzes and processes the acquired data so as to monitor the total running mileage of the vehicle at the present. The method is scientific and rational; the running mileage of the vehicle is calculated accurately, and real-time remote monitoring of the running mileage of the vehicle on a remote monitoring system platform is realized.In vehicle demonstration operation, the remote monitoring system can be used for acquiring and monitoring the running mileage of the vehicle so as to obtain the real time running mileage data of the vehicle conveniently and quickly.

The invention discloses an intelligent safety helmet risk management and control system comprising a data acquisition layer which acquires data and uploads the data to a data server; a data access layer which is used for data recording, data persistence, data isolation and access, insertion, modification, deletion and query of original data; a service processing layer which is used for processingand scheduling management of online acquired data of the intelligent safety helmet, establishment of a safety helmet acquired data association analysis model and file service management; a data serverwhich is used for receiving and storing the data and establishing a model database; an interface layer which is used for data connection; a presentation layer which is used for man-machine interaction. According to the invention, real-time remote monitoring of employees in the hydropower station at any place can be realized; real-time interaction between the management and control end and the site is realized; periodic inspection is carried out on a communication network and a system platform, abnormity is actively found, early warning pushing is carried out, and a safety manager remotely carries out effective real-time safety risk management and control on an intelligent safety helmet wearer.

The invention discloses an intelligent home control system. The intelligent home control system comprises a master control module, a zigbee module, a GPRS communication module, a warning module and asensor detection module, wherein the master control module is connected with the zigbee module, the GPRS communication module, the warning module and the sensor detection module respectively; the zigbee module is used for detecting and controlling home electric appliances; the sensor detection module is used for detecting an indoor home environment; and the GPRS communication module is used for realizing remote wireless communication between a user and the control system. The invention further discloses an intelligent home control method. The invention relates to the technical field of intelligent homes. According to the system and the method, operation state data and home environment data of home electric appliances are sent to the user through the GPRS communication module, and the usercan remotely monitor conditions at home in real time, so that the use is safe and reliable.

The invention discloses an ecological hydrological monitoring device, which comprises a floating platform, a protection platform, a limit structure, a water body monitoring mechanism, a support mechanism and an air monitoring mechanism. The floating platform is located above the protection platform; the limit structure is connected between the floating platform and the protection platform; the water body monitoring mechanism is arranged below the floating platform; and the support mechanism and the air monitoring mechanism are arranged above the floating platform. A floating block is fixedly connected to the lower side of the floating platform; and an equipment cylinder is fixedly connected to the upper side of the floating platform. The ecological hydrological monitoring device has characteristics of remote monitoring and high adaptability to the rising and falling of the water level. When the device is in use, power is generated by using the solar energy and thus the device works forlong time; with a communication device, real-time and remote monitoring is realized; with a flowing plate and a wind guiding plate, the air monitoring data and the water body monitoring data become accurate and reliable; and when the river flow is in a shortage or cutoff state, the water body monitoring mechanism is inserted into the central cavity of a protection cylinder.

The invention provides a method and system for automatically switching the states in an electrolytic cell in a copper electrolysis workshop. According to the method and system for automatically switching the states in the electrolytic cell in the copper electrolysis workshop, the operating status of a copper electrolysis crane is judged and obtained by obtaining the power-on and power-off information of the electrolytic cell and the status information of an electrode plate in the electrolytic cell in time, and control information for the next state of the copper electrolysis crane is obtained accordingly; and production field information of the copper electrolysis workshop is automatically converted into a control signal for the next state of the copper electrolysis crane, and the control signal is sent to a control room, so that real-time remote monitoring of the conditions in the electrolytic cell in the copper electrolysis workshop is achieved. By adoption of the method and system, the labor intensity of crane operators and ground inspectors is greatly relieved, and the method and system have extremely important significance for guidance of copper electrolysis production schedule and safety management and improvement of production efficiency.

The invention provides intelligent equipment, a low power consumption temperature and humidity monitoring method, a computer device and a computer readable storage medium. The intelligent equipment includes: a temperature and humidity acquisition module, which is connected to a control module, and is used for acquiring the temperature and humidity data of the intelligent equipment and sending the temperature and humidity data to the control module; a positioning module, which is connected to the control module, and is used for acquiring the location data of the intelligent equipment and sending the location data to the control module; the control module, which is connected to the temperature and humidity acquisition module and the positioning module, receiving the temperature and humidity data and the location data, and sending the temperature and humidity data and the location data to a server; and a low power consumption sensing module, which is connected to the control module, and is used for acquiring the transportation information of the intelligence equipment, and sending the transportation information to the control module. According to the invention, the power consumption of the system is reduced as much as possible, and the intelligence equipment can realize ultra-long working and standby time.

The present invention discloses a system and method for remotely monitoring an energy metering instrument. The system comprises a data collection terminal comprising a measurement controller and an instrument measurement device, the measurement controller controls the instrument measurement device to measure the energy metering instrument to collect measurement information, and the measurement information comprises a measurement error of the energy metering instrument obtained through measurement. The system also comprises a local server which receives the collected measurement information from the data collection terminal and encrypts the measurement information, a remote data center server which received encrypted measurement information from the local server and decrypts the measurement information, and a working station which monitors the encrypted measurement information from the remote data center server and evaluates the metering performance of the energy metering instrument and the metering performance of the instrument measurement device. By applying the system and the method, the regulatory authority can easily obtain reliable measurement data, and a good foundation is laid for market regulation, sectoral cooperation and macro information statistics.

The invention discloses a device for monitoring the equipment operation condition of a pre-assembled transformer substation. The device comprises a multi-path switch selector, an embedded singlechip module unit, a computer, a high-voltage chamber main switch condition sensor, a three-phase input voltage sensor, a three-phase input current sensor, a high-voltage chamber ambient temperature sensor and a transmitter, a high-voltage chamber door switch condition sensor, a low-voltage chamber wire inlet power supply voltage sensor and a transmitter, a low-voltage chamber wire inlet power supply current sensor and a transmitter, a low-voltage chamber door switch condition sensor, a low-voltage chamber ambient temperature sensor and a transmitter, a low-voltage chamber output main switch condition sensor, a low-voltage chamber output power metering sensor and a transmitter, a transformer chamber door switch condition sensor, a transformer chamber ambient temperature sensor and a transmitter, and a transformer chamber ambient humidity sensor and a transmitter. In the invention, the device can be used for monitoring the condition parameters of the high-voltage chamber, low-voltage chamber and transformer chamber of the pre-assembled transformer substation in real time.

The invention relates to an electrocardiogram monitoring system with motion recognition and positioning functions, and a monitoring method. A dynamic electrocardiogram monitoring waistband is worn atan abdomen of a human body and used for acquiring, storing and transmitting electrocardiogram and motion and position information of the human body. Electrocardiogram monitoring platforms include a cellphone App electrocardiogram monitoring platform and a PC electrocardiogram monitoring platform, wherein the cellphone App electrocardiogram monitoring platform receives the electrocardiogram and motion and position information which are transmitted from the dynamic electrocardiogram monitoring waistband, and transmits the received information to a cloud server; and the PC electrocardiogram monitoring platform obtains the electrocardiogram and motion and position information from a database of the cloud server, de-noises and displays the electrocardiogram, performs motion recognition on the motion information via a motion recognition algorithm, and displays the position information in real time through building a relationship with a Baidu map API. The electrocardiogram monitoring system is portable and facilitates monitoring of daily motion status of a user, and the electrocardiogram can be remotely monitored in real time.

The invention relates to an intelligent water purifier using an APP real-time monitoring and control system, including a water purifier body, a monitoring device, and a smart phone. The device includes a shell, a central processing unit, a water quality sensor and a power supply. The central processing unit is provided with a WiFi wireless communication module. The monitoring device is respectively connected to the raw water solenoid valve and the water purification solenoid valve circuit. The water quality sensor is located at the water outlet of the water purifier. The monitoring device is connected with the smart phone through the WiFi wireless communication module; the water purifier is at least composed of a pre-coarse filter and a post-fine filter. The invention monitors the water quality of the water purifier in real time through the mobile phone APP, realizes automatic control, and makes the water purifier realize intelligent work, thereby ensuring that the water filtered by the water purifier is clean and healthy, the water quality is safer, and the use is very convenient .

The invention discloses a remote monitoring device based on a GPRS module, wherein the device relates to the field of remote control. The remote monitoring device includes a PLC control system, a frequency converter, a GPRS module and an upper computer. The GPRS module is connected with the PLC control system and upper computer respectively. The PLC control system is connected with the frequency converter for collecting the operating parameters of the frequency converter, compressing and packaging the operation parameters, and transmitting the running parameters to the GPRS module. The GPRS module is used for receiving the operation parameters and sending the operation parameters to the upper computer, which realizes the real-time remote monitoring of many equipments of the large-scale production-oriented enterprises, improves the data reading efficiency, and solves the defects that the real-time remote monitoring of many equipments of the large-scale production-oriented enterprises isdifficult and the data reading efficiency is low in prior art.

The invention discloses an air conditioner remote control system based on power line carrier. The system comprises an air conditioner body, a central processor, a power line carrier module and a remote server; the central processor is arranged in the air conditioner body and is used for controlling the air conditioner body, the central processor is connected with the power line carrier module, theremote server is connected with the power line carrier module, the power line carrier module transmits information to the remote server through power line carriers, the remote server is used for sending control instructions and displaying work state of the air conditioner. According to the air conditioner remote control system, traditional site control is popularized to remote control, a user cancontrol the air conditioner through an infrared remote controller on site, on a remote client side, the air conditioner can be subject to remote monitoring and control, and real-time continuous monitoring, remote wireless transmission and remote monitoring of the air conditioner can be achieved.

The invention provides a remote monitoring system of flammable and explosive gases. The system comprises an onsite control terminal and a remote upper computer; the onsite control terminal comprises apower module, a wireless transceiving module, a collection and communication module and a human-computer interaction module; the onsite control terminal performs information interaction with the remote upper computer by using the wireless transceiving module via a wireless network; the power module provides electric energy for the wireless transceiving module, the collection and communication module and the human-computer interaction module; the power module can support two power supply modes, that is, an intrinsically safe DC power supply and a high-capacity lithium secondary battery pack; and the two different power supply modes can be automatically switched according to different demands. The remote monitoring system provided by the invention implements long-distance wireless monitoring by using a GPRS network, in the circuit design of the collection and communication module and the power module that is in direct contact with the flammable and explosive gases, a plurality of anti-static and explosion-proof structures are disposed, real-time remote monitoring of the flammable and explosive gases can be realized, and thus the security of monitoring is improved.

The invention discloses a safety monitoring system and a safety monitoring method for a crane hook. The safety monitoring system for the crane hook comprises a monitoring module, a panorama shooting module and a height measurement module, wherein the monitoring module is respectively connected with the panorama shooting module and the height measurement module, the monitoring module comprises a data processing and storing unit, an image acquisition unit, a shooting control unit and an image display unit, the data processing and storing unit is respectively connected with the height measurementmodule and the image display unit, and used for processing real-time height information of the hook and transmitting a standard hook image under the real-time height to the image display unit, the image acquisition unit is respectively connected with the panorama shooting module and the image display unit, and used for acquiring real-time hook images shot by the panorama shooting module and transmitting the real-time hook images to the image display unit, and the shooting control unit is connected with the panorama shooting module and used for adjusting the shooting target and a shooting angle. The safety monitoring system for the crane hook realizes real-time remote monitoring for running states of the hook, and improves working safety of a crane.

The invention relates to the field of pest control, and discloses a field pest monitoring system which comprises an unmanned aerial vehicle, a controller and a data storage device are arranged in theunmanned aerial vehicle, a storage battery is connected to the upper end of the unmanned aerial vehicle, and a high-definition camera and an infrared thermal imager are installed at the lower end of the unmanned aerial vehicle. The surface of the unmanned aerial vehicle is connected with a wireless transmitter, the wireless transmitter is connected with a remote control terminal and a terminal server, and the terminal server is internally provided with a pest and disease damage management system. The invention further provides a field pest monitoring method. According to the field disease andpest monitoring system and method, field disease and pest images can be collected in real time. The system has a disease and pest recognition and analysis function, so that real-time monitoring of diseases and pests in all areas is achieved, meanwhile, the workload and labor intensity of forecasting personnel can be greatly reduced, the accuracy can be remarkably improved, and the effect is good.

The invention discloses an intelligent hammer crusher having remote monitoring function, which includes a hammer crusher body, and a sensing detection device arranged thereon. The sensing detection device is provided with a temperature sensor, a rotation speed sensor, a vibrating sensor, an abrasion sensor, an electricity metering device and a yield detection sensor. The sensing detection device is connected to a data conversion apparatus. The data conversion apparatus is connected to a local data receiving / sending apparatus. The sensing detection device is connected to a cloud server via thedata conversion apparatus and the local data receiving / sending apparatus. The cloud server is connected to a PC web page terminal and a mobile phone App terminal. By means of the sensing detection device, a problem of remote monitoring on production and operation data of the hammer crusher is solved, wherein concentrated analysis and management on the field production data of the hammer crusher isavailable, thus supplying data support to technical modification on equipment in enterprises.

The embodiment of the invention discloses a remaining oil amount monitoring system, method and device for an oiling pump of mechanical equipment, and a server. The remaining oil amount monitoring system for the oiling pump of the mechanical equipment comprises the oiling pump, an Internet of things communication gateway, a network server and client equipment, wherein the oiling pump comprises a main control chip, an oil pocket unit, an oil amount detection unit and an Internet of things communication module; the main control chip is connected with the oil amount detection unit and the Internetof things communication module through a serial port respectively; the oil pocket unit is connected with the oil amount detection unit; the Internet of things communication module forms a communication connection with the Internet of things communication gateway through an Internet of things communication technology; the network server forms communication connections with the Internet of things communication gateway and the client equipment respectively; the oil amount detection unit is used for detecting the remaining oil amount of the oil pocket unit and sending the remaining oil amount tothe main control chip; and the remaining oil amount is sent to the client equipment through the Internet of things communication module. According to the system, the method, the device and the server,the remaining oil monitoring efficiency and reliability of the oiling pump of the mechanical equipment are improved.

The invention discloses a device for remotely monitoring oil quantity in a pipeline in real time and a working method thereof, relating to a flow monitoring technology. The device for remotely monitoring the oil quantity in the pipeline in real time comprises a flow sensor unit, a signal transmitting unit and a signal processing unit, wherein the signal processing unit is positioned in a monitoring room; the flow sensor unit and the signal transmitting unit are mainly used for tracking and detecting the magnitude of petroleum flow in an oil pipe in real time and transmitting acquired information wirelessly; and the signal processing unit is mainly used for acquiring and processing information output by each signal transmitting unit positioned on an oil well field, and transmitting the information to a computer. The device has the advantages of low cost, high signal transmission reliability and no limit on the monitoring room for accommodating the computer and the signal processing unit by the position of the monitored pipeline.

The invention relates to the field of modern electronic technologies, in particular to an arctic sea ice comprehensive monitoring system. The arctic sea ice comprehensive monitoring system comprises apower supply module, a main control module, a data acquisition module, a GPS locating module and a communication control terminal, wherein the power supply module, the data acquisition module, the GPS locating module and the communication control terminal are all connected with the main control module, and the power supply module is also connected with the data acquisition module and the communication control terminal separately. The GPS locating module carries out data transmission with a Beidou satellite. The monitoring system solves the problem that polar monitoring needs manual monitoring; automatic monitoring and real-time monitoring are achieved.

The invention provides a data exchange monitoring system comprising a plurality of data resource collection terminals, a data transmission module, a data exchange module, a data monitoring server, a cloud computing server and a remote monitoring terminal, wherein the plurality of data resource collection terminals and the data transmission module, the data transmission module and the data exchangemodule, the data exchange module and the data monitoring server, the data monitoring server and the cloud computing server, and the cloud computing server and the remote monitoring terminal are all connected via a wireless network with a gigabit Ethernet transmission rate, and the data monitoring server comprises a processor, a fault indicator and a locating module, which are connected in sequence. The data exchange module, the data monitoring server and the remote monitoring terminal can also achieve real-time remote monitoring of data exchange while realizing the data exchange, so that thefault can be discovered and solved in time to ensure the normal operation of the data exchange system.

The invention discloses a sensor for a safety quality management and control platform based on power Internet of things power distribution network construction. The sensor comprises an induction circuit, a rectification circuit and a detection circuit which are connected in sequence. According to the sensor, real-time remote monitoring of states of terminal operation tools in a power distributionnetwork operation field is realized by using an ultrahigh frequency RFID technology of Internet of things. A purpose of sharing an operation safety state and construction quality in real time by multiple departments is achieved, problems of poor timeliness, low efficiency and poor safety in the prior art are solved, the operation safety of field operation personnel is guaranteed, working efficiency is improved, and accidents are prevented and reduced.

The invention provides an array displacement measuring device and method for slope slippage and settlement monitoring. The device comprises a plurality of steel pipes with pulleys, every two adjacent steel pipes are connected through a flexible joint, and a measuring unit is mounted in each steel pipe; the measuring unit comprises at least two magnetic sensor measuring modules and a magnetic sensor and acceleration sensor measuring module which are mutually communicated in series, the measuring device is arranged in an inclinometer pipe or a settlement pipe of a slope, and a permanent magnet is arranged on the inclinometer pipe or the settlement pipe corresponding to each steel pipe. By integrating the magnetic sensor and the acceleration sensor in the device, the whole device realizes real-time remote monitoring of slope slippage and settlement displacement, so that one measuring device simultaneously realizes measurement of an inclination measuring instrument and a settlement instrument, and the problems of complexity, limited measurement angle and the like caused by repeated arrangement of an engineering field inclinometer and a settlement instrument are solved; moreover, automatic measurement can be realized, manual participation is not needed, layout is simple, and use is convenient.

A method for remotely monitoring mileage of hybrid vehicle, the method is achieved based on a remote monitoring system; the remote monitoring system comprises a wireless transceiver module, a network operator server, a monitoring system user terminal, a wireless communication network and an Internet communication network installed in the hybrid control unit of a vehicle; the method comprises: the wireless transceiver module sends real-time vehicle mileage data to the network operator server via a wireless network while the vehicle is traveling; the network operator server forwards the real-time vehicle mileage data to the monitoring system user terminal via the Internet communication network. The present invention is scientifically reasonable and not only accurately calculates the vehicle mileage but also achieves the real-time remote monitoring of the vehicle mileage at a remote monitoring system platform. During vehicle demonstration operation, the remote monitoring system can be used to collect and monitor vehicle mileage, thus obtaining real-time vehicle mileage data conveniently and quickly.

The invention relates to the technical field of bridge monitoring, and discloses a road and bridge settlement difference real-time monitoring system, which comprises a foundation, a roadbed body and a bridge body, the roadbed body and the bridge body are fixed to the upper surface of the foundation, a supporting column is fixedly installed on the upper surface of the foundation, and a horizontal adjusting mechanism is arranged at the top of the supporting column, the horizontal adjusting mechanism comprises a transverse plate fixed to the top of the supporting column, side plates are fixedly connected to the left side and the right side of the top of the transverse plate correspondingly, rotating bearings are fixedly installed on the opposite sides of the two side plates correspondingly, and a rotating shaft is movably connected between the two rotating bearings, Driving motors with output shafts fixedly connected with the rotating shaft are arranged on the opposite sides of the two side plates. According to the road and bridge settlement difference real-time monitoring system and method, by arranging the horizontal adjusting mechanism, a laser emitting device can be precisely located in a vertical horizontal state, so that it is guaranteed that two initial point light sources are located on the same horizontal plane, the measurement precision is guaranteed, and by arranging a monitoring device, real-time remote monitoring can be achieved.