30results about How to "Small geographical restrictions" patented technology

The invention provides a remote monitoring system of peritoneal dialysis machines and a monitoring method thereof. The monitoring system comprises a serial communication module of peritoneal dialysis machines, a GPRS communication module and a monitoring server which is arranged in a monitoring center, a plurality of peritoneal dialysis machines are connected with the GPRS communication module by serial interfaces, and the GPRS communication module is communicated with the monitoring server by a wireless network. The monitoring method comprises the following steps of: inputting abnormal condition information through a peritoneal dialysis machine terminal by a user and sending the abnormal condition information to the GPRS communication module by a serial interface; then, sending the information input by the user to the monitoring server by the GPRS communication module; displaying, counting and storing the data information received by the monitoring server in real time; alarming abnormal dialysis information; sending an abnormal information processing method to the peritoneal dialysis machines in a text message or prompting medical stuff to indicate. The invention has the timely and accurate remote monitoring effect and favorable interaction.

The invention provides a high-temperature sewage treatment and distilled water preparation system and a control method thereof. The system comprises a flash evaporator, a water vapor compressor, a contact condenser, a distilled water tank, an air cooling heat exchanger and an electric heating water tank, wherein a steam outlet of a steam compressor is connected with an inlet of the water vapor compressor through a regulating valve; an outlet of the water vapor compressor is connected with the inlet at the bottom of the contact condenser, one path of a condensed water outlet of the contact condenser is connected with the distilled water tank, the other path of the condensed water outlet of the contact condenser is connected with the electric heating water tank through the air cooling heat exchanger, the outlet of the electric heating water tank is connected with a spray pipe of the contact condenser through a water pump, and high-temperature sewage is connected with the spray pipe of aflash chamber. By the adoption of the high-temperature sewage treatment and distilled water preparation system and the control method thereof, the problems of corrosion, scaling and the like of a traditional evaporative heat exchanger are overcome by directly carrying out flash evaporation treatment on the high-temperature sewage with the temperature of more than 50 DEG C; and high-temperature distilled water with the temperature of more than 80 DEG C is effectively prepared by introducing a mechanical steam recompression principle, so that the sewage treatment is achieved, and the demand of industrial field on domestic water is met.

The invention provides a hydrocone type multi-stage hydroelectric generation method and belongs to the technical field of hydroelectric generation. The method comprises the following steps of: firstly, selecting one section of river basin with a flow fall, installing a water inlet end of a siphonage pipeline on the upper end of water area of the flow fall section, laying the siphonage pipeline along the flow fall section, intruding a water outlet end of the siphonage pipeline into the lower end of water area of the flow fall section or other discharge regions; and arranging one or more water-turbine generator sets in a pipe section where the flow pressure difference of the siphonage pipeline reaches the requirement of the rotating speed of the water-turbine generator sets, wherein each water-turbine generator set is connected with a parallel operation control system. The method provided by the invention has the advantages of low engineering cost, little limit to regions, no need of building a dam on a river, large flexibility in arranging the generator sets, no damage and pollution to environments, lower operation cost, stable flow speed, and more suitability of being built in the river basin with the flow fall. The water outlet end of the siphonage pipeline can be used for supplementing a water source for a lake and a reservoir, can also be used for supplementing water for a water-deficient area, a dry river and a farmland, and plays a role in improving environment and farmland soil.

The invention discloses a comprehensive energy supply system and method for an urban complex and a large-scale public building group. A distributed new energy power generation device is taken as a main energy supply device, an energy storage device is used for adjusting instability of new energy power generation, electric supply is taken as an auxiliary energy source, compared with the traditionalenergy supply system for the urban complex, dependence on the electric supply is reduced, the distributed new energy power generation device generates electricity by virtue of new energy resources such as solar energy and wind energy, pollution is low, cost is low, distance with a load demand side is short, transmission distance is short, line loss is low, and geographic restriction is less; meanwhile, a compressed air energy storage device is adopted, not only new energy resource electric energy quality can be adjusted, but also multiple energy supply demands such as power supply, cold supply and heat supply can be met, and the technical problems that the current energy supply system for the urban complex depends too much on municipal electricity, the line loss is high, electricity utilization cost is high, reliability is low, energy supply type is single and the geographic restriction still exists even if terrestrial heat and a gas turbine set are taken as supplements.

The invention discloses a blade-free wind power and photovoltaic double-layer independent power generation system and a control method thereof; the blade-free wind power and photovoltaic double-layerindependent power generation system comprises wind power generation batteries, solar energy generating batteries attached to the wind power generation batteries, a rectifier connected with the wind power generation batteries, a voltage converter connected with the rectifier and the solar energy generating batteries, and a storage battery connected with the voltage converter. The blade-free wind power and photovoltaic double-layer independent power generation system is provided; a piezoelectric material plate and a film solar energy photovoltaic plate are attached so as to utilize two energiesfor power generations; in daytime, the system mainly uses the solar energy photovoltaic generating mode; in night time, the system mainly uses the piezoelectric material wind power generation mode.

The invention discloses an oscillating floater type wave energy collection and friction power generation device. The oscillating floater type wave energy collection and friction power generation device comprises a shell, an energy collection unit, a resonance gear mechanism, rocker transmission assemblies and a friction power generation unit. The shell is of a cylindrical structure, the two ends of the cylindrical structure are closed, and a first separating plate, a second separating plate and a third separating plate are arranged inside the shell in sequence from top to bottom. The energy collection unit is located on the top of the first separating plate and comprises two floaters. The two floaters are symmetrically arranged through an S-shaped installation plate on the top of the firstseparating plate and movably connected with a resonance gear box. The resonance gear box, the rocker transmission assemblies and angle transmission assemblies are located between the first separatingplate and the second separating plate. The energy collection unit is movably connected with the resonance gear mechanism, the rocker transmission assemblies are connected with a four-shaft transmission assembly through the angle transmission assemblies, and the four-shaft transmission assembly is connected with the friction power generation unit through an acceleration assembly. The oscillating floater type wave energy collection and friction power generation device is compact in structure, high in corrosion resistance and high in wind and wave resistance capacity, the mechanical damage of the wave energy to the floaters is reduced, the structure is compact, maintenance is convenient, and the wave energy power generation efficiency is high.

The invention relates to a breeding method of arma chinensis, and belongs to the technical field of insect breeding and biological pest control. According to the method, a time relation of growth anddevelopment of food-borne plants, prey insects and the arma chinensis is combined, the modern agricultural science and technology are adopted according to biology and ecology habits of the food-borneplants, the prey insects and the arma chinensis, coordinated development of the food-borne plants, the prey insects and the arma chinensis is achieved, manual operation is reduced as much as possible,and rolling feeding of the arma chinensis is achieved. The method has the advantages of being easy to operate, low in cost, high in survival rate, high in intensification degree, capable of facilitating large-scale breeding and easy to popularize.

The invention relates to a preparation method for modified porous SiO2 used for sewage treatment. The preparation method comprises the following steps: preparing sodium silicate; preparing porous SiO2; modifying the porous SiO2; performing other steps. The invention further discloses a method for pretreating a strong acid cation exchange resin, a regeneration method of the modified porous SiO2 for sewage purification and a recycling method of the strong acid cation exchange resin. The cheap river sand is used to prepare the porous SiO2; the source of the material is wide; with the use of the local material, the geographic restrictions of preparing sodium silicate from quartz sand are reduced; the transportation cost is lowered to reduce the production cost; relatively mild reaction conditions, instead of high temperature and high pressure, are chosen in the preparation process, so that the industrial production is beneficial; the porous SiO2 is prepared. The modified porous SiO2 has a continuous network structure and is relatively uniform in both pore size distribution and pore size, parts of the pore sizes reach the nanoscale, and the modified porous SiO2 has a strong adsorption capability.

The invention discloses a comprehensive energy supply system and method for urban complexes and large-scale public buildings. A distributed new energy power generation device is used as the main energy supply device, and an energy storage device is used to adjust the instability of new energy power generation. As a supplementary energy source, compared with the energy supply system of traditional urban complexes, the utility power reduces the dependence on the utility power. Since the distributed new energy generation device generates electricity through new energy sources such as solar energy and wind energy, the pollution is small and the cost is low. , the distance from the load demand side is small, the transmission distance is short, the line loss is low, and the geographical restrictions are small. At the same time, the use of compressed air energy storage devices can not only adjust the quality of new energy power, but also meet the requirements of power supply, cooling and heating. The energy supply demand solves the problem that the current energy supply system of urban complexes is too dependent on municipal electricity, with large line loss, high electricity cost, low reliability, and a single type of energy supply. Even with geothermal and gas turbine units as supplements, there are still regional Limited technical issues.

The invention relates to a method for determining Laves phase content in steel. In a Mossbauer spectroscopy instrument, with a transmission mode, a sample is determined, such that a relationship between sample count and Doppler velocity is obtained; the obtained experiment data is placed in Recoil; possible peak spectrum number and corresponding possible phases are determined according to spectral line shape and iron-containing phase; the influence value of the element in spectral line possible corresponding phase upon the hyperfine field value iron element is introduced into the software, and automatic fitting is carried out; when peak spectral shapes are consistent and error value is low, fitting is finished; the fitting result is exported, and the proportion of the corresponding phase is viewed. With the method provided by the invention, a sample preparation technology is simple, the proportion value of iron-containing phase in steel can be obtained, and the result is accurate.

The invention provides a high-temperature heat pump system with water as a working medium for industrial wastewater waste heat recovery and a method. The high-temperature heat pump system with the water as the working medium for the industrial wastewater waste heat recovery comprises an evaporator, a water steam compressor, a contact type condenser, a first heat exchanger, a second heat exchangerand an electric heating water tank; a steam outlet of the evaporator is connected with an inlet of the water steam compressor, and an outlet of the water steam compressor is connected with a bottom inlet of the contact type condenser; one way of industrial wastewater is connected with a heat exchange tube in the evaporator and flows out after being preheated and supplemented through the first heatexchanger, and the other way of the industrial wastewater is heated and supplemented; and one way of the heated supplemental water is sprayed into the evaporator, and the other way of the heated supplemental water enters the electric heating water tank and then is sprayed into the contact type condenser. The industrial wastewater waste heat recovery heat pump system uses the water as the workingmedium, nontoxicity, environmental protection and high efficiency are achieved, the industrial wastewater waste heat with the temperature above 50 DEG C can be recycled, and high-quality and high-temperature hot water used for living with the temperature above 80 DEG C can be provided.

The invention discloses a teaching device and a teaching method for a lemon market experiment. The teaching device comprises an upper computer and N wireless response terminals, wherein N is an integer which is more than or equal to 3; the upper computer consists of a wireless transceiver and a computer; the wireless transceiver is used for receiving signals which are transmitted by the wireless response terminals and transmitting the received signals to the computer; the upper computer exchanges data with the wireless response terminals through the microwave of 433MHZ; the wireless transceiver consists of a first wireless transceiver module, a universal serial bus (USB) serial interface signal conversion chip and a first USB socket; the output end of the first wireless transceiver module is connected with the input end of the USB serial interface signal conversion chip; and the USB serial interface signal conversion chip is connected with the computer by the first USB socket. The terminals exchange the data with the upper computer more conveniently, the device and the method can adapt to a more and more complicated voting rule, a using range is extended, regional limit is reduced, and using sites are more flexible.

The invention discloses a cooling and dehumidifying type seawater desalination system with heat pump circulation and a working method thereof. Heat pump circulation and humidification and dehumidification processes are combined in the system and the system is used for a seawater desalination process. The system comprises a seawater pump, a condenser, a humidifier, an air blower, a circulating pump, an evaporator, a mixer, a compressor, a motor, a first throttling valve, a dehumidifier, an induced draft fan and a second throttling valve. According to the principle of energy transfer between the heat pump system and water and air, the system is driven by the condenser of the heat pump system; the energy utilization efficiency of seawater desalination is improved through heat recovery of heat pump circulation. Meanwhile, the application limitation of a traditional humidification and dehumidification seawater desalination system caused by an additional heat source is avoided, and the national strategic requirements of energy conservation, emission reduction and sustainable development of water resources are met.

The invention discloses a teaching device and method for theoretical experiments on market structure, comprising a host computer and N wireless response terminals, where N is an integer ≥ 1, the host computer is composed of a wireless transceiver and a computer, and the wireless The transceiver is used to receive the signal sent by the wireless response terminal, and transmit the received signal to the computer; the host computer and the wireless response terminal exchange data through the microwave of 433MHZ, and the wireless transceiver is composed of the first wireless transceiver module, USB serial port The signal conversion chip and the first USB socket are composed, the output end of the first wireless transceiver module is connected with the input end of the USB serial port signal conversion chip, and the USB serial port signal conversion chip is connected with the computer through the first USB socket, and the terminal and the host It is more convenient to exchange data between computers, can adapt to more and more complex voting rules, expands the scope of use, and reduces geographical restrictions, making the use location more flexible.

The invention provides a preparing method of water hyacinth rattans. The preparing method comprises the steps that firstly, water hyacinth stalks suitable for a growth stage are collected, leaves androots are removed, stalk bodies are retained, and cleaning is conducted for standby application; then high-osmotic pressure dehydrating and softening are conducted on the stalk bodies, then primary extruding dehydrating is conducted, and meanwhile, washing liquid and extruded removed liquid are collected; soaking treatment is conducted on the stalk bodies obtained through extruding dehydrating inthe above steps by using antiseptic moth-proof liquid medicine; secondary extruding dehydrating is conducted on the flushed stalk bodies after soaking treatment in the step (4), and meanwhile, washingliquid and extruded removed liquid are collected; and by using more than one methods of natural air-drying, heating drying and vacuum drying, the moisture content of the water hyacinth stalks is decreased to 10-15%, and the water hyacinth rattans are obtained. The preparing method of the water hyacinth rattans is simple and rapid in step, low in energy consumption in the preparation process and low in preparation cost.

The invention proposes a road gradient measuring device, comprising: a casing, the interior of which is provided with a cavity; a floating rod assembly, which is penetrated in the casing and moves along the setting direction of the casing, and the floating rod assembly Located at the lower part of the casing, the lower end of the floating rod combination is in contact with the inclined slope to feed back the slope information of the inclination break, and the upper end of the floating rod combination is provided with a scale for displaying the slope of the inclined slope Data; a brake lever combination, which is arranged in the casing and is located in the middle of the casing, the brake lever combination is used to brake the floating rod combination; a foot rod combination is arranged in the The lower end of the floating rod assembly, the floating rod assembly is in contact with the inclined slope through the foot rod assembly. The invention has strong practicability, can realize the operation and measurement by a single person, and significantly improves the measurement efficiency. It has a wide range of applications and low geographical restrictions, and can be well used in corners that cannot be measured by traditional instruments.

The invention discloses a situation presentation robot for educational use. The situation presentation robot for educational use comprises a robot shell; a base is arranged at the bottom of the robotshell; a top plate is arranged at the top of the robot shell; a universal wheel chassis is arranged at the bottom of the base; micro push rods are arranged on the two sides of the universal wheel chassis; rubber suckers are arranged at the bottom ends of the micro push rods; a light emitting light strip is arranged on the bottom wall of the top plate; a solar cell panel and a photoelectric converter are arranged at the top of the top plate; a display module is arranged on the robot shell; a loudspeaker is arranged on one side of the display module; a sensing module is arranged on the other side of the display module; a communication module is arranged at the bottom of the display module; a control panel is arranged at the top of the display module; and a main control chip is arranged in the robot shell. According to the situation presentation robot for educational use, the moving and fixing of the robot are made more flexible, the geographical limitations of use are furthest reduced, the novelty of teaching contents is guaranteed, the outdoor circuit wiring limitation is eliminated, and the practicability is enhanced.

The invention provides a high-temperature heat pump system and method using water as a working medium for recovering waste heat from industrial wastewater, including an evaporator, a steam compressor, a contact condenser, a first heat exchanger, a second heat exchanger and Electric hot water tank, the steam outlet of the evaporator is connected to the inlet of the water vapor compressor, the outlet of the water vapor compressor is connected to the bottom inlet of the contact condenser, and the industrial waste water is connected to the heat exchange tube in the evaporator all the way, and flows out after preheating the makeup water by the first heat exchanger , the other way passes through the second heat exchanger to heat the make-up water, the heated make-up water is sprayed into the evaporator one way, the other way enters the electric hot water tank, and then sprayed into the contact condenser. The industrial wastewater waste heat recovery heat pump system provided by the present invention uses water as the working medium, is non-toxic, environmentally friendly and efficient, can recover the waste heat of industrial waste water above 50°C, and provides high-quality high-temperature heat for daily use with a temperature above 80°C. water.

The invention provides a high-temperature sewage treatment and distilled water preparation system and control method, including a flash evaporator, a steam compressor, a contact condenser, a distilled water tank, an air-cooled heat exchanger and an electric hot water tank. The steam outlet of the steam compressor is adjusted The valve is connected to the inlet of the water vapor compressor, and the outlet of the water vapor compressor is connected to the bottom inlet of the contact condenser. One way of the condensed water outlet of the contact condenser is connected to the distilled water tank, and the other way is connected to the electric water tank through the air-cooled heat exchanger, and the outlet of the electric water tank passes through The water pump is connected to the spray pipe of the contact condenser, and the high-temperature sewage is connected to the spray pipe of the flash chamber. The invention treats high-temperature sewage above 50°C by direct flash evaporation, overcomes the problems of corrosion and scaling of traditional evaporative heat exchangers, and introduces the principle of mechanical steam recompression to effectively prepare high-temperature distilled water above 80°C, realizing the goal of sewage treatment At the same time, it can also meet the needs of industrial sites for domestic water.

The present invention relate to the field of information communication technology, relates to a production system monitoring software capable of being compatible with different domains, and provides atransmission mode with high security and high reliability, and provides a novel information publishing system based on information synchronization which can achieve real-time early warning by using various instant messaging software such as short message, e-mail and the like and a publishing method thereof. The system comprises an information input source, an information processing center and aninformation output source, The information input source includes: real-time monitoring module and general socket client distributed in each production site; The information processing center includesa message receiver, a message processor and a message distributor. The information output source includes a plurality of chip modules capable of implementing Android simulation instances.

The invention discloses a teaching device and a teaching method for a lemon market experiment. The teaching device comprises an upper computer and N wireless response terminals, wherein N is an integer which is more than or equal to 3; the upper computer consists of a wireless transceiver and a computer; the wireless transceiver is used for receiving signals which are transmitted by the wireless response terminals and transmitting the received signals to the computer; the upper computer exchanges data with the wireless response terminals through the microwave of 433MHZ; the wireless transceiver consists of a first wireless transceiver module, a universal serial bus (USB) serial interface signal conversion chip and a first USB socket; the output end of the first wireless transceiver module is connected with the input end of the USB serial interface signal conversion chip; and the USB serial interface signal conversion chip is connected with the computer by the first USB socket. The terminals exchange the data with the upper computer more conveniently, the device and the method can adapt to a more and more complicated voting rule, a using range is extended, regional limit is reduced, and using sites are more flexible.

The invention discloses a teaching device and method for game experiments, comprising a host computer and N wireless response terminals, where N is an even number ≥ 2, the host computer is composed of a wireless transceiver and a computer, and the wireless transceiver is used for To receive the signal sent by the wireless response terminal, and transmit the received signal to the computer; the host computer and the wireless response terminal exchange data through the microwave of 433MHZ, and the wireless transceiver is converted by the first wireless transceiver module and the USB serial port signal The chip is composed of the first USB socket, the output end of the first wireless transceiver module is connected with the input end of the USB serial port signal conversion chip, and the USB serial port signal conversion chip is connected with the computer through the first USB socket, between the terminal and the host computer It is more convenient to exchange data between, can adapt to more and more complex voting rules, expands the scope of use, and reduces geographical restrictions, making the use location more flexible.

The invention relates to the field of geographic information system application, in particular to a geographic data multi-database collaborative updating maintenance method and maintenance system. According to the geographic data multi-database collaborative updating and maintaining method, a terminal and a server side are included, a map updating preprocessing module is deployed on the terminal, and a plurality of databases and a synchronous service module are deployed on the server side, and the method comprises the steps that 1, the map updating preprocessing module on the terminal preprocesses geographic data, and the preprocessed geographic data obtains a unique identifier; the unique identifier is used for marking the synchronization relationship of the data; 2, a synchronization service module located at a server side sets synchronization marks for tables of different databases, and 3, the synchronization service module receives the geographic data from the map updating preprocessing module and distributes the geographic data according to the unique identification of the geographic data and the synchronization marks, and the databases update the geographic data.

The invention discloses a solar heat storage and closed cycle coupling power generation system, which includes a solar heating unit and a compression expansion power generation unit, wherein the solar heat collection device absorbs solar heat as a heat source and stores excess heat through the heat storage device It is used in night and other non-sunlight conditions, so as to achieve the effect of energy storage. Its power generation process is similar to that of a gas turbine, except that the combustion chamber is replaced by a waste heat recovery device and a high-temperature heat exchanger. At the same time, the waste heat recovery device and a low-temperature heat exchanger are used to cool down the expanded gas, thereby improving the operating efficiency of the device. Because the present invention adopts a closed cycle, the impurity content is less in the operation process, which can reduce the harm to the unit caused by the moisture and salt content of the working medium. The present invention greatly reduces the space of the gas collection chamber because the energy is stored in the heat storage mode of the heat conduction oil. The present invention is suitable for use in scenarios where power grids are difficult to reach and require relatively large power, such as power grid peak regulation or frontiers and sea islands.

The invention discloses a microwave-absorbing asphalt pavement mixture which is prepared from the following raw materials in percentage by mass: 4-5.5 percent of modified asphalt, 33-65 percent of coarse aggregate, 25-55 percent of fine aggregate, 2-5 percent of ore powder and 3-7 percent of hydroxy iron powder. In addition, the invention also discloses a method for preparing the microwave-absorbing asphalt pavement mixture. The method comprises the following steps: 1, preheating raw materials; and 2, mixing and stirring raw materials, thereby obtaining the microwave-absorbing asphalt pavement mixture. When the asphalt pavement mixture disclosed by the invention is paved on the road surface, the capacity of absorbing microwaves on the surface of the pavement can be obviously enhanced, the surface of the pavement can be rapidly heated to raise the temperature due to a microwaves penetration ice layer, and the energy is transferred to the ice and snow layer through heat conduction, so that the ice and snow layer is molten into liquid water. Therefore, the ice layer is separated from the pavement, the ice and snow can be removed by adopting a manual or mechanical mode, and the working efficiency of the microwave deicing method is greatly improved.

The invention relates to a continuous extraction device, in particular to a continuous extraction device of total components of a biological tissue at normal temperature, a vehicle-mounted assembly line thereof and a method thereof. An inventor conducts improvement based on an extraction device with an authorized patent, adds a crushing homogeneous pre-processing system to perform pre-processing on raw materials, achieves continuous supply of the raw materials, enables an existing liquid discharging and air outlet hole to serve as an air outlet and liquid discharging hole and a channel for extracting extract liquor. When extracting the extract liquor, the continuous extraction device simultaneously removes the problem of air stored inside, further achieves continuous extraction of the extract liquor, improves production capacity and reduces cost. The continuous extraction device is arranged on a loading vehicle, forms a moving factory assembly line so as to facilitate extraction at any place, thereby reducing region limit, increasing flexibility of production, further improving extraction liquor quality and reducing production cost.

The invention provides a preparing method of water hyacinth rattans. The preparing method comprises the steps that firstly, water hyacinth stalks suitable for a growth stage are collected, leaves androots are removed, stalk bodies are retained, and cleaning is conducted for standby application; then high-osmotic pressure dehydrating and softening are conducted on the stalk bodies, then primary extruding dehydrating is conducted, and meanwhile, washing liquid and extruded removed liquid are collected; soaking treatment is conducted on the stalk bodies obtained through extruding dehydrating inthe above steps by using antiseptic moth-proof liquid medicine; secondary extruding dehydrating is conducted on the flushed stalk bodies after soaking treatment in the step (4), and meanwhile, washingliquid and extruded removed liquid are collected; and by using more than one methods of natural air-drying, heating drying and vacuum drying, the moisture content of the water hyacinth stalks is decreased to 10-15%, and the water hyacinth rattans are obtained. The preparing method of the water hyacinth rattans is simple and rapid in step, low in energy consumption in the preparation process and low in preparation cost.

The invention relates to an alkali-free liquid quick-setting agent, which is prepared by mixing solution A and solution B in proportion. In terms of mass percentage, the raw material components of the prepared solution A include 45-60% aluminum sulfate octadecahydrate, 0.05-1% Sodium fluoride, 2‑5% inorganic coagulation accelerator component, 2‑4% organic early strength agent and 35‑50% water; the raw materials for preparing solution B include 45‑55% octadecahydrate aluminum sulfate, 8‑15% partial Sodium aluminate, 2‑4% organic early strength agent, 3‑6% tackifier and 25‑40% water. The stability of solution A and solution B is good. On-site compounding can adjust the performance of the accelerator. On the one hand, it can overcome the influence of factors such as temperature and cementitious material changes during the construction process, and improve its adaptability to the environment; On the one hand, it can make the accelerator suitable for various types of cement. The raw materials are safe and easy to obtain, easy to transport, and the process is simple and easy to operate.

The invention provides a remote monitoring system of peritoneal dialysis machines and a monitoring method thereof. The monitoring system comprises a serial communication module of peritoneal dialysis machines, a GPRS communication module and a monitoring server which is arranged in a monitoring center, a plurality of peritoneal dialysis machines are connected with the GPRS communication module byserial interfaces, and the GPRS communication module is communicated with the monitoring server by a wireless network. The monitoring method comprises the following steps of: inputting abnormal condition information through a peritoneal dialysis machine terminal by a user and sending the abnormal condition information to the GPRS communication module by a serial interface; then, sending the information input by the user to the monitoring server by the GPRS communication module; displaying, counting and storing the data information received by the monitoring server in real time; alarming abnormal dialysis information; sending an abnormal information processing method to the peritoneal dialysis machines in a text message or prompting medical stuff to indicate. The invention has the timely and accurate remote monitoring effect and favorable interaction.