160results about How to "Understand the work status" patented technology

The invention discloses an intelligent self-service type clothes washing system of a public dormitory based on technique of Internet of Things and a method of the intelligent self-service type clothes washing system. The intelligent self-service type clothes washing system comprises a radio frequency identification unit, a central processing unit, a washing control unit and a mobile client end APP (application). The method comprises the following main working steps that a user holds an RFID (radio frequency identification) tag to swipe a card to wash clothes, and the tag is used for storing the information of the user; a sensor group of the washing unit is used for controlling the clothes washing; after the clothes are washed, the central processing unit is used for sending a washing finishing command of a main control program to the mobile client end APP of the user through an information transmitting unit; when the washing of the clothes is finished but the clothes are not taken out, the use trusting degree of the user is set, and is adjusted according to the behaviors of the user. Different from the common household intelligent clothes washing machine, the intelligent self-service type clothes washing system and the method aim at a school group dormitory or a public laundry room, the single washing machines are integrated into a system, and the intelligent service between the server end and the client end is realized.

The invention discloses a distributed video monitoring cloud storage system, which relates to the technical field of video storage. The system at least comprises two storage equipment, wherein each storage equipment is embedded with a platform software; an encoder converts an analog signal collected by a camera into a digital signal, and then the digital signal directly enters into the storage equipment without passing through a video server; the storage equipment control a whole monitoring system through the platform software simultaneously; and each platform software comprises two parts: one part is service programs which are run in a distributing way on the storage equipment, and the other part is client programs used on Windows by users. Through the structure, a video monitoring storage management platform is integrated with the video storage equipment, so that a server for running the monitoring platform is saved. The distributed video monitoring cloud storage system has the advantages of integrating storage, video recording, forwarding, browsing, downloading, playback, networking and other functions.

The invention discloses a human-computer interactive intelligent wheelchair which comprises a wheelchair body, two driving rear wheels, two driven front wheels, a storage battery, two driving motors, a human-computer interactive device, an operation rod and a motor driver, wherein the wheelchair body comprises a table top and two pedals. The human-computer interactive intelligent wheelchair is characterized in that an embedded control system is installed in the table top, a controller of the embedded control system is a 16-bit SPCE016A singlechip, an ultrasonic autonomous navigation mechanism is distributed at the lateral portion of the wheelchair body, and a voice control mechanism and a vision autonomous navigation mechanism are distributed on the wheelchair body. The ultrasonic autonomous navigation mechanism, the voice control mechanism and the vision autonomous navigation mechanism are respectively in telecom connection with the embedded control system which is further in telecom connection with the operation rod and the motor driver, and the storage battery provides power for the driving motors. By mean of the human-computer interactive intelligent wheelchair based on the 16-bit SPCE016A singlechip serving as the controller of the embedded control system, the problems that the existing human-computer interactive intelligent wheelchair based on a universal computer controller has high cost, large power consumption, poor cruising capability and the like can be solved well.

The invention relates to a method for monitoring bridge health. According to the method, a plurality of plate type rubber supporting seats are adopted, wherein a force measuring element is arranged on each plate type rubber supporting seat, and comprises a plurality of optical fiber strain sensors for sensing the axial pressure and the shearing force on a corresponding supporting seat; the optical fiber strain sensors are symmetrically arranged in corresponding plate type rubber supporting seats, and are connected to an optical fiber data acquisition converter which converts an optical signal into an electric signal and displays the electric signal in the form of strain; and the average value of read numbers of the optical fiber strain sensors, which is acquired by the optical fiber data acquisition converter, is used as a final supporting seat stress strain measurement value. The invention also relates to an intelligent force-measuring supporting seat for monitoring the bridge health. According to the method and the intelligent force-measuring supporting seat for monitoring the bridge health, the stress condition of a bridge supporting seat can be accurately and effectively monitored, the shape of the supporting seat is not different from a common supporting seat, and the supporting seat can be conveniently manufactured and mounted, so that the method and the supporting seat can be used for tracking and monitoring construction loads, vehicle overload and abnormal changes of bridge performance of a bridge in real time.

The invention provides a portable short circuit grounding wire monitoring platform. The portable short circuit grounding wire monitoring platform is composed of a monitoring module, a communication forwarding control module and a computer background server; the monitoring module is installed on a grounding rod or a ground clamp; a bare conductor which is hung on the grounding rod or the ground clamp is in contact with an electrode to form an electrical connection loop; the electrical connection loop is connected with the monitoring module on the grounding rod or ground clamp through a lead; anthe monitoring module transmits detected wire hanging state information and electric quantity information of a power supply battery of the monitoring module to the communication forwarding control module through a wireless transparent transmission mode, and the wire hanging state information and the electric quantity information are transmitted to a remote computer background server through a network. According to the portable short circuit grounding wire monitoring platform provided by the invention, the working state of the used ground wire, the electric quantity information of the battery,and the satellite positioning position of the ground wire of the used field of the ground wire can be timely and accurately known. Through an alarm function for a violation operation when the groundwire is removed at the end of work, casualty accidents of accidental electric shocks caused by the violation operation can be timely avoided.

The invention provides a wafer Map display model and an application method thereof. The method includes: building a dynamic linking library WaferMapDll firstly, building a derived class CWaferMap based on CStatic, building a wafer Map coordinate model, regarding each crystal grain as a point, and distributing a coordinate for each crystal grain; judging whether the distributed coordinates are in the range of a wafer, drawing small checks representing inner crystal grains of the wafer according to the crystal grains in the range of the wafer, and forming a wafer Map display image; building a binary file for storing crystal grain information and zoomed redrawn crystal grain test conditions, calculating a storage address of the information of each crystal grain in the file, and writing the crystal grain information in the file; obtaining a motor pulse coordinate of a current crystal grain, calculating a Map coordinate of a current crystal grain according to the motor pulse coordinate and a wafer central motor pulse coordinate, and marking and storing the corresponding crystal grains displayed on a Map image in the binary file. The wafer Map display model and the application method of the wafer Map display model are multifunctional, strong in portability and high in flexibility.

The invention discloses a method of transmitting production data, which comprises the following steps: a scanning device on an assembly line scans a recognition code on a semi-finished product, and the semi-finished product identity information carried in the recognition code is acquired; the identity information of the scanning device, the semi-finished product identity information and the scanning time information are bound correspondingly and transmitted to a processing center, and thus, the processing center can store the received scanning device identity information, the semi-finished product identity information and the scanning time information in a one-to-one corresponding mode. the assembly line is divided to a plurality of working stations, each working station is provided with the scanning device, the manager of the control processing center can clearly know the progress and the state of each working station, and when a large distance exists between the manager and the assembly line, the manager can still know the processing progress of the product in real time.

The invention provides a gas water heater system capable of adjusting the outlet water temperatures of different water outlets automatically and a control method of the gas water heater system. A hot water outlet of a gas water heater is connected with a plurality of faucets. The gas water heater system comprises a central processing module arranged on the gas water heater and induction modules arranged on water outlets of the faucets correspondingly. The central processing module comprises a central processing unit, a first wireless communication module, a display and key input module, an electromagnetic valve and a power supply module, wherein the first wireless communication module, the display and key input module, the electromagnetic valve and the power supply module are electrically connected with the central processing unit. Each induction module comprises an induction processing unit, a second wireless communication module, a water flow sensor, a temperature sensor and a water flow power-storage module, wherein the second wireless communication module, the water flow sensor, the temperature sensor and the water flow power-storage module are electrically connected with the induction processing module. The control method of the gas water heater system comprises the steps of setting, triggering, working, repeating and the like. According to the gas water heater system capable of adjusting the outlet water temperatures of different water outlets automatically and the control method of the gas water heater system, the actual outlet water temperatures of different water outlets can be adjusted automatically according to preset outlet water temperatures of the water outlets, the situation that a user needs to frequently walk to corresponding positions of the gas water heater for adjustment when having different water temperature requirements on different water consuming points is avoided, and using is extremely convenient.

A numeral control system for the numerically controlled press used for shaping the plates of ship body is composed of a touch screen type man-machine interface as a management layer, a programmable controller as a control layer, and a physical layer consisting of executing mechanism and detecting mechanism. Said executing mechanism comprises frequency variator, motor, electromagnetic valve and variable pump. Said detecting mechanism consists of photoelectric protector, approximate switch, pressure sensor, displacement sensor and temp sensor.

The invention discloses a vehicle-mounted air purifier and a purifying method of same. The vehicle-mounted air purifier includes a shell body, an air filtering apparatus, a fan, a metering apparatus and a power supply. The metering apparatus comprising an air substance measurement apparatus, a single chip microcomputer, an air flow rate measurement apparatus and a display apparatus. The single chip microcomputer is respectively connected to the air substance measurement apparatus, the air flow rate measurement apparatus and the display apparatus. The vehicle-mounted air purifier overcomes the defects that a vehicle-mounted air purifier in the prior art needs to change a filter screen timely and the proper time of changing the filter screen is difficult to know, and achieves the technical effects of intelligent switch, automatic adjustment of work situation and the like which are lack in the vehicle-mounted air purifier in the prior art. The vehicle-mounted air purifier has a wide application prospect.

The invention discloses a maglev train levitation monitoring method and a maglev train levitation monitoring system based on industrial Ethernet communication. The steps of the method are as follows: each levitation control lower computer is connected with upper computers through the industrial Ethernet; by a multi-task mode, the levitation control lower computers acquire and output the levitation state data of levitation points to the upper computers and receive control commands coming from the upper computers, and at the same time, the levitation control lower computers control the levitation state of the levitation points according to the levitation state data of the levitation points and the control commands; the system comprises the upper computers and the levitation control lower computers, and each levitation control lower computer comprises a sensor group, a data acquisition board, a levitation controller, an actuating mechanism, an Ethernet controller and an Ethernet interface. The invention can display levitation data, acquire the working state of a levitation system in real time and ensure that engineers can efficiently monitor and maintain the levitation system in real time, and has the advantages of high operation speed, high system integration degree, complete functions and convenience and high efficiency in debugging.

A plug-in type electric connector for carbon crystal electric heating composite floors comprises the composite floors and carbon crystal boards. Each floor comprises a whole board and a length adjustable board. The whole boards are internally provided with the carbon crystal boards. The plug-in type electric connector is characterized in that the two ends of each whole board and the two ends of each length adjustable board are provided with a power supply interface and a communication interface respectively, the whole boards are internally provided with electronic temperature measurement components and soft printed circuit boards, the length adjustable boards are internally provided with power supply wires and shielded wires, the power supply interfaces are internally and fixedly connected with first connecting pieces, and the communication interfaces are internally and fixedly connected with second connecting pieces. According to a circuit, a main power supply line, a main loop wire and a power source are electrically connected, and a power supply loop composed of every two adjacent rows of composite floors is connected with the power source in parallel. According to a monitoring device, the input end of a monitor is electrically connected with a main communication line, the output end of the monitor is respectively and electrically connected with the main power supply line and the main loop wire, monitoring circuits are electrically connected with the main communication line, the composite floors form the monitoring circuits, and the monitoring circuits form a monitoring unit and are provided with the monitor.

The invention provides a power distribution power source monitoring method and device. The power distribution power source monitoring method is applied to the power distribution power source monitoring device and comprises the steps of colleting the current values and the voltage values of a power distribution power source, comparing the current values and the voltage values with preset values, obtaining comparative results, generating warning information if the comparative results meet preset warning conditions, displaying the warning information on a mobile terminal, and therefore working states of the power distribution power source in an unattended machine room can still be known.

The invention relates to an air purifier control system. A sensor circuit acquires and processes external temperature and humidity, odor and PM2.5 (particulate matter2.5) and sends a voltage signal to a master control circuit, acquired data are converted to be displayed in a man-machine interaction circuit, the master control circuit controls the sensor circuit through a pulse signal, air volume, photocatalyst and disinfection are controlled through an on-off control circuit according to the data acquired by the sensor circuit, and the data acquired by the sensor circuit and display status of the man-machine interaction circuit can be sent to a mobile phone of a user through a WIFI (wireless fidelity) communication circuit. The man-machine interaction circuit can control the on-off control circuit through the master control circuit. User experience is improved obviously due to a capacitive touch liquid crystal display, the surrounding temperature and humidity, odor and PM2.5 can be acquired, and the user can know indoor air quality and working status of an air conditioner visually and conveniently.

The invention relates to a spacer fluid circulating system used for a mechanical seal. The spacer fluid circulating system comprises a fluid storage tank; the fluid storage tank comprises a tank body (1); and a fluid supplementing opening, a fluid outlet (9) and a fluid inlet (15) are arranged on the tank body (1). The spacer fluid circulating system is characterized in that a tubular sandwich wall (4) for dividing the tank body (1) into an inner chamber and an outer chamber is also arranged in the tank body (1); the chamber positioned at an outer layer is a sandwich chamber (3); a piston (13) is mounted in a main chamber (21) positioned at an inner layer; the piston (13) divides the main chamber (21) into a first part positioned at an upper part and a second part positioned at a lower part through a sealing ring (26); the second part is communicated with the chamber used for containing a sealing medium through a pressure source interface (12); and the upper end surface of the piston (13) is also connected with a piston rod (14). The invention provides the spacer fluid circulating system used for the mechanical seal, and the spacer fluid circulating system is higher in stability.

The present invention discloses a container formation storage battery cooling apparatus and a cooling operation method. A purpose of the present invention is to solve the defects of the poor cooling effect and non-uniform cooling effects on different batteries of the existing container formation storage battery cooling water tank. The container formation storage battery cooling apparatus comprises a cooling tank, wherein the bottom surface of the cooling tank is provided with a water inlet hole and a water outlet hole, the water inlet hole is connected with a water inlet pipe, the water outlet hole is connected with a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively provided with a water inlet electromagnetic valve and a water outlet electromagnetic valve, a temperature detection device is arranged in the cooling tank, the bottom of the cooling tank is provided with a plurality of pulse gas blowing holes, each pulse gas blowing hole is connected with a pulse gas blowing pipe, each pulse gas blowing pipe is provided with an electromagnetic pulse control valve, the water inlet electromagnetic valve, the water outlet electromagnetic valve, the temperature detection device and the electromagnetic pulse control valve are electrically connected with a controller. With the cooling apparatus, the battery cooling effect is good, the uniformity of the cooling effect on different batteries in the cooling tank is good, the service life of the storage battery is prolonged, and the product quality is ensured.

The invention discloses liquid control non-stage transmission cooling performance detecting device and method. The device includes sensing component connected in series, control component contains analog to digital converter ADC0816 and SCM AT89C2051, executing component contains digital to analog converter TCL5620 and solenoid valve, electrical source, and liquid flow rate adjusted by the solenoid valve according to the control signal. The method includes the following steps: respectively setting and collecting sensor output time slice, solenoid valve duty ratio, duty ratio adjusted step size; confirming collecting time according to the object and output value to process data converted into digital signal; comparing the curve gained under the condition that cooler inlet oil temperature is not more than 150 degree centigrade with theoretic one; storing the result and sending to output device. It can automatically verify and detect CVT efficiency, the matching of the wind cooler and hydraulic system.

The invention discloses a return airway ventilated type semiconductor refrigerating fruit and vegetable distributing box. The return airway ventilated type semiconductor refrigerating fruit and vegetable distributing box comprises inside-and-outside embedded type double-layer box body, a control module, a refrigerating module, a ventilating module and a power supplying module; a return airway which extends from the front portion of the box body to the rear portion of the box body is formed in the interlayer of the inside-and-outside embedded type double-layer box body, the refrigerating module is used for achieving a refrigerating work mode and a heat insulation work mode, the ventilating module is used for achieving a front portion refrigerating and ventilating mode and a rear portion refrigerating and ventilating mode, the power supplying module is used for supplying power for the whole distributing box and suitable for power supplying of different input power types, and it is guaranteed that refrigerating is not interrupted in the conveying process. The defects that an existing distributing box is low in refrigerating efficiency, poor in cooling effect, large in volume mass of a refrigerating unit, unequal in temperature field distribution inside the box and the like are overcome.

The invention discloses a box-type transformer substation, which comprises a box body consisting of a bottom plate, four side plates and a top plate, wherein a box door is arranged on the front side plate, shutter type ventilation openings are formed in the left side plate and the right side plate, the inside of the box body is separated into a high-voltage chamber, a low-voltage chamber and a transformer chamber through a separation plate, high-voltage switch equipment is arranged in the high-voltage chamber, low-voltage power distribution equipment is arranged in the low-voltage chamber, a transformer is arranged in the transformer chamber, a heat radiation and dehumidification device adopting the low-voltage power distribution equipment for realizing the power supply is also arranged inside the box body, and comprises a single chip microcomputer, a temperature and humidity sensor, an electric heater and a small-size fan, the single chip microcomputer is fixedly arranged on the inner side walls of the side plates, and the temperature and humidity sensor, the electric heater and the small-size fan are respectively connected with the single chip microcomputer. The box-type transformer substation has the advantages that the structure is simple, the design is reasonable, the use is convenient, the cost of the additionally arranged equipment is low, the overhaul and the maintenance are easy, and the heat radiation and dehumidification effects are good.

The invention discloses a multifunctional and intelligent network camera, which comprises a main processor, wherein the main processor is respectively connected with an environment light sensor, an infrared transmitter, an image sensor, a power source management module, a local memory, an USB (universal service bus) interface, a communication interface, a GSM (global service for communications) message receiving and sending module, an I / O (input / output) interface and a wired network interface, the GSM message receiving and sending module is provided with a GSM antenna, the USB interface is connected with a WIFI (wireless fidelity) module, the WIFI module is provided with a WIFI antenna, the communication interface is connected with an RFID (radio frequency identification) module and a sensor module, and the RFID module is provided with an RF (radio frequency) antenna. The multifunctional and intelligent network camera has the advantage that a user can conveniently obtain figure and text data of monitored objects through multiple channels, receive fault reports, and set the functions of the network camera.

The invention discloses a simulation satellite demonstration teaching aid and system. The attitude of a running satellite, interaction of information data, information acquisition control and information presentation control can be simulated, so that teaching staff can conduct demonstration explicitly and students can study more easily. Meanwhile, the structural feature of the satellite is simulated clearly and completely based on linking relation, so that students can learn the composition of the satellite comprehensively and visually and deepen the understanding of the satellite by assembling the simulation satellite teaching aid with their own hands. Under the assistance of a display device, demonstration can be conducted more visually and more clearly, and the running state of the satellite can be explained. According to the simulation satellite demonstration system, the remote control satellite is simulated through a simulation ground station, the simulation satellite is made to run more accurately according to detected satellited information and calibration remote measurement information, and the biofidelity and intelligent level of the simulation satellite are further improved.

The invention provides a message processing method and device. The method comprises the following steps; receiving a request message sent by a client; judging whether the request message supports theperforming of intermediate live-keeping in the processing procedure; judging whether a server incompletely processes the request message on the arrival of the preset time under the situation of judging that the request message supports the performing of intermediate live-keeping in the processing procedure; returning the intermediate live-keeping message in undone message processing to the clientwhen judging that the server incompletely processes the request message on the arrival of the preset time. Through the message processing method provided by the invention, the problem that some requests needing long processing time cannot be executed as normal since the client sets the time-out period wait for response for judging whether the service is abnormal is solved.

The invention belongs to the technical field of flue gas denitrification and relates to a low-temperature operation prevention automatic protecting method and control system for a flue gas denitrification catalyst. The low-temperature operation prevention automatic protecting method for the flue gas denitrification catalyst comprises the steps that S1, the critical temperature (please refer to the specification) is preset in a distribution control system (DCS); S2, a temperature sensor detects the flue gas temperature Q in a flue in real time and has an access to the DCS; S3, the DCS counts up the continuous operation time A of the condition of MIT<Q<MOT and the continuous operation time B of the condition of RT<Q<MXOT; and S4, the DCS controls a valve of a denitrification and ammonia supply pipeline and a timer by referring to the continuous operation time A, the continuous operation time B, the flue gas Q and the critical temperature. By means of the control method, control automation can be achieved, the temperature and time are controlled more accurately, and the denitrification catalyst is prevented from being irreversibly damaged by manual control deviation.

The invention provides to a medicinal laser printing system and relates to a medicinal imaging device for detecting the states of all organs and tissues in a human body. The medicinal laser printing system comprises a computed tomography (CT) machine and an image processor, wherein the image processor is connected with the CT machine and is used for further improving and processing the image from the CT machine; and the image processor is connected with a laser printer of output equipment to output a picture through medium-type film paper. The medicinal laser printing system has the advantages that: 1) the image is processed after passing through the CT machine, so that the image forming quality is further improved; 2) the image is printed and output by the laser printer, the developing solution and fixing solution are saved, environmental pollution is avoided and the image is clearer; 3) the laser printer is provided with a recognizer for recognizing the films so as to avoid using unqualified films; and 4) the laser printer is provided with a detecting device and an alarming device and the operating state of the laser printer is detected in real time, so that an operator can know the working state of the laser printer in time and misoperation is avoided.

The invention relates to an analytic system and an analytic method for simulating the data information of a spacecraft in flight, wherein the analytic system comprises a front-end transmission unit, which is used for two-way transmission of data information with the spacecraft; a front-end processing unit, which is used for controlling the front-end transmission unit and collecting the data information in the front-end transmission unit; and a rear-end processing unit, which is used for acquiring the data information in the front-end processing unit and analyzing the data information. The comparison of execution of commands on the spacecraft is quick and accurate, meanwhile, the spacecraft can be interpreted in real time, when abnormality appears, sound or image alarm can be automaticallyand timely performed, so that a user can respond within a short time, and delay is avoided.

The invention provides a camera and a control method of the internal temperature of the camera. The camera comprises an image processing module, a display module, a processing unit, a temperature control module and one or more temperature sensing modules, wherein the display module is connected with the image processing module and the processing unit is used for exchanging data with the image processing module; the temperature sensing modules are used for measuring the temperature in the camera and outputting detecting results to the processing unit; and the processing unit is used for outputting a temperature control signal to the temperature control module. The camera and the control method of the internal temperature of the camera, provided by the invention, can realize the detection and the control of the temperature in the camera by using the temperature sensing modules and the temperature control module, and assure that the camera can work at a normal temperature condition; meanwhile, by feeding back the temperature value on the display module in time, a user can more clearly know about working states of the camera.

The invention relates to a weft insertion system for an air-jet loom, comprising a special-shaped reed, a fixed-length weft feeder, a main nozzle, an auxiliary nozzle, a weft detector and scissors. Auxiliary nozzle, adjacent to the auxiliary nozzle, a weft detector is provided at one end of the profiled reed, and a main nozzle is provided at the other end of the profiled reed. The long feeder and yarn guide are connected to the main nozzle. The invention is simple in structure and reasonable in design. While ensuring the efficiency of weft insertion, the accuracy of weft insertion coordinates is improved, and at the same time, the tension of the weft yarn before it enters the swinging main nozzle is reduced, and the weft yarn is prevented from entering the trap after passing through a long shed. Accidents that cause weft detachment during the weft device.

The present invention relates to an equipment cable of indicating working state of projection type image display equipment and correcting trapezoidal distortion produced on display screen and its method. Said invented projection type image display equipment has a microcomputer for controlling work of projection type image display equipment, and the front side of said projection type image display equipment is equipped with at least more than one laser beam generation component. Said invention also provides the concrete function and action of said microcomputer and said laser beam generation component, and also provides the correcting method trapezoidal distortion.

The invention provides a hearing aid which comprises a main control unit (MCU) used for finishing the transformation between aural signals and electric signals, and the switch between a use-mode and a set-mode, and setting up and displaying parameters, an aural signal amplifier used for amplifying collected sound, a volume regulating module used for regulating the volume of a left and a right sound channels respectively, a pitch regulating module used for regulating the pitch of the left and the right sound channels respectively, an LCD displaying module used for displaying the working state of the hearing aid and parameters, a thin-film switch and a power module used for supplying power. The aural signal amplifier, the volume regulating module, the pitch regulating module, the LCD displaying module, the thin-film switch and the power module are respectively connected with the MCU. The hearing aid of the invention provides the function of switch between the use-mode and the set-mode, thus leading the use to be more convenient for users. In addition, the hearing aid displays the set parameters, thereby being beneficial to knowing the working state of the hearing aid more clearly by the users.

The invention relates to a system for remote monitoring of the working state of a set-top box, which comprises a state monitoring system of the set-top box and a set-top box state receiving system of a remote server. The invention further relates to a method for remote monitoring of the working state of the set-top box, which comprises the following steps: establishing network connection between the state monitoring system of the set-top box and the remote server; acquiring local state data and print data at the end of the set-top box, and sending the data to the remote server; and monitoring the shared data of the set-top box by using the remote server, and displaying an interface. By adopting the technical scheme of the invention, the working state and print information of the set-top box can be acquired at a different place, thereby greatly improving the efficiency of research, development, selling and maintenance of the set-top boxes, lowering the research and development cost and further enabling a client to conveniently know the state of the set-top box in a remote manner.