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 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 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.