35results about How to "Response to emergencies" patented technology

The application aims to provide a transaction state monitor method and device; the method comprises the following steps: obtaining one or more update messages of transaction data; generating a transaction state monitor task corresponding to the transaction data according to the update messages; adding the state monitor task into a monitor task set corresponding to a task slot in a time wheel according to timing information corresponding to the state monitor task; checking the time wheel task slot according to time so as to determine a timeout mode monitor task in the monitor task set. Compared with the prior art, the transaction update messages are converted into state monitor task, and the time wheel data structure can effectively monitor the state monitor task, thus preventing high labor cost caused by high requirements on monitor data processing personnel in the existing monitor methods, solving monitor information postponement and untimely processing, and effectively monitoring and warning process of the transaction in each stage.

The invention discloses a distributed detection system for an illegal power utilization behavior of a smart power grid, and a detection method. The distributed detection system comprises a smart electricity meter data acquisition module, a smart electricity meter data transmission module, a smart electricity meter data storage module, a smart electricity meter data security authentication module and a smart electricity meter core computation module. According to the detection system and the detection method, global coverage of the smart power grid is realized; illegal power utilization detection is finished by a smart electricity meter; after system deployment is finished, compared with an original centralized detection system, the coverage range of the system is greatly expanded, emergency situations can be well dealt with, and the precision of computation and detection is relatively high.

The invention discloses a dynamic rule maintenance and generation method based on Drools. The dynamic rule maintenance and generation method comprises the steps: carrying out the management of business rules through employing a two-dimensional form of a relational database, and converting each type of Drools rule files into a two-dimensional form; calling a unified rule generation engine, translating the two-dimensional table into a Drools rule file, and storing the Drools rule file in a Redis cache; informing a rule consumer in real time through the MQ asynchronous message and sending a rulechange message; and after the rule consumer monitors the rule change message, obtaining the latest rule file from the Redis cache, analyzing the rule file, compiling the rule file into a correspondingJAVA CLASS file, and enabling the latest rule to take effect by loading. According to the invention, the problems of inconvenient maintenance and low generation efficiency of the processing rule of the existing web engine are solved.

The invention discloses a railway signal machine state monitoring and steady power supply unit which comprises two rectifier filter circuits, a first breaker circuit, an SEPIC converter circuit, a current sampling and monitoring circuit, a window voltage comparator circuit, a quick restart circuit, a logical processing circuit and a second breaker, wherein the two rectifier filter circuits and the first breaker circuit are connected with the output end of a railway signal transformer, and the output end of the second breaker is connected with an optical signal unit and a warning state output circuit. The circuits of the unit can deal with various emergencies in real time and improve reliability of a signal machine. When the damage rate of LED lamps of the railway signal machine reaches 30%, the unit sends a warning signal back to a central control room while the optical signal unit continues to work; when the damage rate of the LED lamps of the railway signal machine reaches 50%, the unit sends a warning signal to the central control room while the optical signal unit is turned off forcibly; when the railway signal machine is short-circuited or undervoltag or disconnected or have other abnormal situations, the railway signal machine is shut down, and a warning signal is sent back to the central control room.

The invention discloses an electronic information screen based on infrared ray control. The electronic information screen comprises a base, a supporting rod, an anti-collision device and an information display device. The base is fixedly connected with the supporting rod. The supporting rod is provided with the anti-collision device and the information display device from bottom to top. The supporting rod is fixedly connected with a transverse rod. A camera and an infrared sensing plate are fixedly connected with the transverse rod. The anti-collision device comprises a protection cylinder, abuffering box and a buffering roller. A display screen of the information display device is fixed to a fixed plate. The fixed plate is connected with a rotating cylinder through a telescopic rod. Therotating cylinder is in transmission connection with a steering engine. At the corner of a road, the display screen displays vehicle information shot by the camera, meanwhile on the basis of the vehicle position information measured by an infrared sensor on the infrared sensing plate, the steering engine rotates, the telescopic rod stretches out and draws back, the direction and angle of the display screen are adjusted, a vehicle driver can conveniently observe the corner information of the vehicle, and vehicle accidents are reduced; in addition, due to the three-stage protection function of the anti-collision device, the vehicle can be prevented from directly rushing out of the road, and the loss caused by the vehicle accidents is reduced.

The invention relates to the technical field of whole sea depth exploration equipment, specifically an all-oceanic depth landing vehicle, including a vehicle frame and track pulley systems, the two track pulley systems are respectively arranged on both sides of the vehicle frame, and a driving device for driving the crawler pulley system is arranged in the vehicle frame, A primary ballast assemblyis provided in the front of the vehicle frame, A two-stage ballast assembly is arranged at the rear end of the vehicle frame, A first-stage ballast assembly includes a first-stage electromagnet and first-stage ballast iron, The first-stage electromagnet discard first-stage ballast iron when that vehicle body lands on the seafloor, The secondary ballast assembly comprises a second-stage electromagnet and second-stage ballast iron, wherein the second-stage electromagnet discards the second-stage ballast iron when the vehicle body starts to float upward, a buoyancy material is arranged on the upper side of the vehicle frame, a lifting assembly is arranged in the middle of the buoyancy material, the lifting assembly is provided with a propeller, and the propeller is started when the vehiclebody lands or floats upward on the seabed. The invention can complete scientific investigation on the seafloor, has strong adaptability to the seafloor complex operation environment, and creates a newmode of the seafloor landing equipment at the same time.

The invention provides an electric energy metering method for a bidirectional intelligent electric meter based on power factors. The bidirectional intelligent electric meter is arranged, and the bidirectional intelligent electric meter comprises a voltage acquisition circuit, a current acquisition circuit, an electric energy chip, an MCU (Micro-programmed Control Unit) chip, a liquid crystal display device and a serial port communication device, wherein the voltage acquisition circuit and the current acquisition circuit are connected with the electric energy chip respectively; the voltage acquisition circuit and the current acquisition circuit are used for transmitting acquired information to the electric energy chip respectively; the electric energy chip is connected with the MCU chip; the electric energy chip and the MCU chip transmit information to each other; the liquid crystal display device and the serial port communication device are connected with the MCU chip respectively and are in bidirectional communication with the MCU chip. The electric energy metering method for the bidirectional intelligent electric meter is characterized by comprising the following steps: step 1, firstly, initializing; and reading initial positive and negative electric energy stored by an EEPROM (Electrically Erasable Programmable Read-Only Memory) in the MCU chip.

The invention discloses a bearing pre-tightening device. The bearing pre-tightening device comprises a bearing, a bearing seat, an inclined sleeve, a lantern ring, a step shaft and cover plates, wherein a bearing inner ring and the step shaft are installed in a matched manner; a bearing outer ring and an inclined sleeve inner ring are installed in an interference fit manner; the outer side of theinclined sleeve and a lantern ring inner ring are installed in a matched manner; the outer surface of the inclined sleeve is conical; the shape of the lantern ring inner ring corresponds to the shapeof the outer surface of the inclined sleeve; the lantern ring outer ring is arranged in the bearing seat in a sliding manner; the cover plates are fixedly arranged on the two sides of the bearing seat; the cover plates and the step shaft are matched to be used for axially fixing the bearing inner ring; and the cover plates are further used for abutting against the outer ring of the end, close to the small size of the outer side of the inclined sleeve, of the bearing. The bearing pre-tightening device further comprises a pre-tightening mechanism used for pushing the bearing outer ring to move axially. By means of the bearing pre-tightening device, the pre-tightening range is enlarged, and the pre-tightening cost can be reduced.

The invention discloses a real-time detection method and device for display faults in a production line, and a storage medium, and the method comprises the steps of obtaining a display image, and enabling the background of the display image to comprise a pure-color background, a gradient-color background and a grid background; performing pure-color fault detection by utilizing the display image with the pure-color background; performing gradient color fault detection by using the display image with the gradient color background; and carrying out grid fault detection by utilizing the display image with the grid background. Display images (a pure color background, a gradient color background and a grid background) with different backgrounds are obtained respectively, and different faults ofthe display are detected.

The embodiment of the invention provides an image prediction method, device and system, a vehicle behavior planning method, device and system and a storage medium. The image prediction method comprises: obtaining a current image I1<0> collected by a target vehicle at a current moment T<1>; extracting a feature F1<0> of the current image I1<0> through a first encoder EN<0>; for the T<1>+i*[delta]tmoment, calculating the T<1>+i*[delta]t moment; and, in the prediction network Ni, predicting a feature F1i based on one or more of features F10 to F1<i-1>, reconstructing the feature F1 to obtaina predicted image I1<'> at the T<1>+i*[delta]t moment, wherein i+, 2... M, m is an integer greater than or equal to 2, and [delta]t is a preset time period. According to the embodiment of the invention, the subsequent image can be predicted based on the current image acquired by the vehicle, so that the environment change condition of the vehicle in the subsequent driving process can be predicted, the predicted images can be applied to vehicle behavior planning, the interpretability of the behavior planning can be improved, and an emergency can be handled.

The invention relates to a quick-opening stop valve. The quick-opening stop valve comprises a valve body, a valve deck, a valve rod and a valve clack; a partition plate is fixedly arranged inside thevalve body and divides the interior of the valve body into an upper cavity and a lower cavity, a through groove is formed in the partition plate, the valve rod penetrates through the valve deck and isin threaded connection with the valve deck, and the valve clack is located at the end, deep into the valve body, of the valve rod; the valve clack is used for plugging the through groove, a pipelinebreaking channel is formed inside the valve deck, the pipeline breaking channel is formed in the length direction of the valve deck and parallel to the central axis of the valve deck, the pipeline breaking channel sequentially breaks threads arranged inside the valve deck, a plurality of sliding blocks are fixedly arranged on the outer wall of a valve rod, the adjacent sliding blocks are arrangedin the length direction of the valve rod, the connecting line of the adjacent sliding blocks is parallel to the circuit breaking channel. The valve rod and the central axis of the valve deck are collinear, the valve rod rotates around the central axis, and the sliding blocks adaptively slide relative to internal threads of the valve deck; the sliding blocks rotate to the pipeline breaking channeland can slide in the length direction of the pipeline breaking channel. The quick-opening stop valve has the effects of quickly opening the stop valve and coping with emergencies.

The invention discloses an automatic hanging basket. A fixing plate is arranged on the left side of a back plate. A triangular prism is arranged on the fixing plate. A cushion is arranged on the right side of the back plate. Baffle glass is arranged at the portion, on the two sides of the cushion, of the fixing plate. A hanging basket control device is arranged at the upper portion of the baffle glass. A switch is arranged on the left side inside the hanging basket control device. A rocker is arranged on the right side inside the hanging basket control device. An expansion bracket is arranged below the cushion. A rotating shaft is arranged in the midpoint of the expansion bracket. A base is arranged below the expansion bracket. A glass door is arranged on the right side of the expansion bracket. A handle is arranged in the middle of the right side of the glass door. Suction cups are arranged on four vertex angles of the glass door. The intelligent hanging basket is simple in structure, convenient to operate and higher in safety during overhead working.

The invention discloses a smart home management system based on a computer network, which comprises a computer connected with a network. The computer is electrically connected with a sound receiver; the computer is electrically connected with a camera; the computer is electrically connected with a smoke sensor; the computer is electrically connected with an indoor fire prevention and extinguishingsystem control switch; the computer is electrically connected with an electric push rod controller; the electric push rod controller is electrically connected with an electric push rod; one end of the electric push rod is connected with a movable sash, located on the inner side, of the window; the other end of the electric push rod is located in an electric push rod containing groove formed in the wall; an iron sheet is arranged at the end, close to the window frame, of the movable sash; an electromagnet is arranged at the position, corresponding to the iron sheet, of the window frame; the electromagnet is electrically connected with an electromagnet power-on control switch; and the electromagnet power-on control switch is electrically connected with a computer. Thus, the home environmentcan be improved, the safety can be effectively protected, and emergency situations can be dealt with.

The invention belongs to the technical field of livestock and poultry carcass disposal, in particular to a container-type mobile livestock and poultry carcass biosafety disposal process. The container-type mobile livestock and poultry carcass biosafety disposal process comprises the following steps: (1) feeding livestock and poultry carcasses into a crusher for crushing so as to obtain crushed materials; (2) conveying the crushed materials into a biosafety disposal machine through a material conveying pump to perform high-temperature sterilization and disinfection; (3) drying the sterilized and disinfected materials in the biosafety disposal machine; (4) discharging the dried materials in the biosafety disposal machine. The container-type mobile livestock and poultry carcass biosafety disposal process has the advantages of performing high-temperature disposal on the livestock and poultry carcasses, achieving quick and thorough sterilization and disinfection, gathering waste water and waste gas generated by the disposal in a centralized manner, facilitating the centralized disposal, avoiding pollution to the surrounding environment, effectively preventing the spread of epidemic diseases, and effectively controlling and terminating animal epidemic situations. The invention also provides container-type mobile livestock and poultry carcass biosafety disposal equipment which is capable of moving quickly by virtue of a vehicle, achieving convenient disassembly and assembly, and achieving quick connection so as to be used for coping with sudden epidemic situations.

The invention provides a quality test method of a blood sample containing erythrocytes, wherein the content of protease, which is specific in erythrocytes, in a non-erythrocyte component is employed as a parameter for evaluating the quality of the blood sample. The invention also provides a protease substrate having a fluorescence resonance energy transfer character. The structural formula of the protease substrate is D-L-M, herein the D refers to a fluorescent group, the L refers to a linkage group and the M refers to an energy adsorption group. The linkage group is a peptide chain containing tyrosine. In the invention, by means of detection of protease activity specially belonging to interior of cells in the non-erythrocyte component in a liquid biological sample containing cell components, cell rupture degree in the sample can be obtained. To a fresh sample being free of cell rupture during sampling, by means of the method, damage of the cells during processes of collection, storage and transportation of the sample can be obtained. The method has an important significance on evaluation of quality of a blood bank sample used in blood transfusion.

The invention belongs to the technical field of tunnel fire-fighting, and particularly relates to a tunnel fire water supply double-supply system which comprises a fire-fighting pool, a mountain massif drainage ditch located above the fire-fighting pool, a well located under the fire-fighting pool, a differential-pressure water supply unit for utilizing differential pressure for supplying water inthe mountain massif drainage ditch to the fire-fighting pool, and a pump type water supply unit for utilizing pump pressure for supplying water in the well to the fire-fighting pool. According to thetunnel fire water supply double-supply system provided by the invention, impounded water of a mountain massif is fully utilized, so that the recycling of the impounded water of the mountain massif isimproved, and a water saving effect is achieved; and the system mainly utilizes the impounded water of the mountain massif and is seldomly suppled with water through a submerged pump, so that the energy consumption and the power consumption are remarkably reduced, and a remarkable energy saving effect is achieved.

The invention discloses a railway signal machine state monitoring and steady power supply unit which comprises two rectifier filter circuits, a first breaker circuit, an SEPIC converter circuit, a current sampling and monitoring circuit, a window voltage comparator circuit, a quick restart circuit, a logical processing circuit and a second breaker, wherein the two rectifier filter circuits and the first breaker circuit are connected with the output end of a railway signal transformer, and the output end of the second breaker is connected with an optical signal unit and a warning state output circuit. The circuits of the unit can deal with various emergencies in real time and improve reliability of a signal machine. When the damage rate of LED lamps of the railway signal machine reaches 30%, the unit sends a warning signal back to a central control room while the optical signal unit continues to work; when the damage rate of the LED lamps of the railway signal machine reaches 50%, the unit sends a warning signal to the central control room while the optical signal unit is turned off forcibly; when the railway signal machine is short-circuited or undervoltag or disconnected or have other abnormal situations, the railway signal machine is shut down, and a warning signal is sent back to the central control room.

The invention discloses a system and a method of automatically detecting and alarming tap water radiation pollution. The system comprises a central control module, and a pulse counter, a storage module, a sound and light alarming module, a GSM communication module, and a WIFI communication module connected with the central control module, a power supply module, a detector, a shielding structure, a mobile phone APP or a computer client, and an Internet. An STM32 single chip microcomputer and a related radiation sensor are combined for monitoring a tap water radioactivity counting condition in a tap water pipeline, related data are stored in a local memory and can also be transmitted to the mobile phone or the computer client, when tap water radiation pollution happens, an abnormal condition is pushed to a related management person from a tap water company in real time via a GSM network, the alarming information is fed to the network at the first time via WIFI, and the purpose of handling an emergency situation in real time is achieved.

The invention relates to a sandwich plate movable sandwich layer structure capable of being quickly built and an extension method thereof. The movable sandwich layer structure comprises a plurality of isosceles triangle modules I and isosceles triangle modules II that are similar and four hexagonal modules with axisymmetric connecting edges, wherein the bottom connecting edge of one isosceles triangle module located on the non-edge is connected with the bottom connecting edge of another isosceles triangle module, the two isosceles triangle modules are completely the same, the upper bottom connecting edge of the hexagonal module located on the non-edge is connected with the upper bottom connecting edge of another hexagonal module, the lower bottom connecting edge of the hexagonal module located on the non-edge is connected with the lower bottom connecting edge of another hexagonal module, the two hexagonal modules are completely the same, when the isosceles triangle modules are connected with the hexagonal modules, one hexagonal module is connected with at most two isosceles triangle modules, and the four hexagonal modules and the two isosceles triangle modules which are sequentially connected to form the single closed loop form a hollow rhombus. According to the structure, the movable sandwich layer which can be changed into a sandwich plate through single-degree-of-freedom folding and unfolding can enable the thickness of the sandwich plate to be accurately and rapidly changed, and emergency situations can be timely dealt with.

The invention discloses a manual implementation method for a manufacturing technology of a thin film solar cell. The method comprises the steps of the selection of a machine station, the product transfer in batch, the loading of the products, the selection of manufacturing technological parameters, the load-out of the products and the like by technologists so as to obtain preferable manufacturing technical elasticity.

This application relates to a quick-opening stop valve, which includes a valve body, a valve cover, a valve stem and a valve disc. A partition plate is fixed inside the valve body. There is a through groove on the plate, the valve stem runs through the bonnet and is threadedly connected with the bonnet. Open along the length direction of the bonnet and set parallel to the central axis of the bonnet, the break-off channel interrupts the internal threads of the bonnet in sequence, multiple sliders are fixed on the outer wall of the valve stem, and adjacent sliders are arranged along the length direction of the valve stem , the connecting line of the adjacent sliders is parallel to the breaking channel, the central axis of the valve stem and the bonnet is in line, the valve stem rotates on its own axis, and the sliding block is adapted to slide relative to the inner thread of the bonnet itself; the slider rotates to the breaking channel , can slide along the length of the breaking channel. The application has the effect of quickly opening the shut-off valve to deal with emergencies.

The invention discloses a high-stability skateboard with a rod, the skateboard comprises a pedal, a holding rod is fixed at the front end of the pedal, and a treading part for accommodating an operator is arranged on the pedal; one end of the holding rod is a connecting end and is rotatably fixed on the pedal, and the connecting end is connected with an angle detection device; when the holding rod inclines forwards and forms an obtuse angle with the treading part, the angle detection device outputs an acceleration signal; and when the holding rod and the treading part form an acute angle, the angle detection device outputs a speed reduction signal. By adopting the skateboard, when the operator pushes the holding rod forwards, the body inclines forwards, the gravity center inclines forwards, the angle detection device outputs the acceleration signal when the holding rod inclines forwards and forms the obtuse angle with the treading part, the operator inclines backwards during acceleration due to inertia, but the gravity center of the operator inclines forwards in advance before acceleration, and the operator can stand more stably during acceleration; the deceleration is similar; in addition, by arranging the holding rod, the operation difficulty of the scooter is reduced, and the operator can more easily stabilize the body.

The invention discloses a cable arrangement machine. The cable arrangement machine comprises a cable control device, a cable arrangement slot, a box door, a box door handle, a heat dissipation window,a hinge, a cable arrangement machine body, a limit baffle, a cable arrangement roller, a cable arrangement rotating rod, a cable arrangement supporting frame, a switch, an operation panel, a fixing frame, a take-up disc, take-up transverse rods, transverse rod foundation supports and a fixing ring. The rear end of the cable arrangement slot is welded to the front end of the cable arrangement machine body, the right end of the cable arrangement machine body is in clearance fit with the left end of the box door, the box door is internally connected with the left end of the box door handle through a screw, the left end of the heat dissipation window is connected with the right end of the box door through a clamping slot, the rear end of the box door is connected with the right end of the cable arrangement machine body through the hinge, and the top of the cable arrangement machine body is welded to the bottom of the cable arrangement supporting frame. The cable arrangement machine is structurally provided with the cable control device, a positioner and a cable controller are arranged, multiple cables can be subjected to cable arrangement simultaneously, and work efficiency is improved; and meanwhile, if abnormity occurs, a pull ring is pulled, emergencies can be coped with timely, and the cable arrangement machine is practical.

The invention discloses an energy-saving and environment-friendly efficient dryer. The energy-saving and environment-friendly efficient dryer comprises a heating mechanism, a drying mechanism and a circulating mechanism. The drying mechanism is movably installed on the right side of the heating mechanism, and the circulating mechanism is movably installed on the right side of the top end of the drying mechanism. The heating mechanism is composed of a driving motor, an outer rotating fan, a heat dissipation net, condensate water outlets, a high-pressure gauge, a low-pressure gauge, an electriccabinet, a PLC touch display screen, a signal lamp, a fresh air valve, fan blades and a protective net. The driving motor is fixedly installed at the top end of the left side of the heating mechanism,and the outer rotating fan is movably installed in the center of the surface of one end of the left side of the heating mechanism. The heat dissipation net is fixedly installed on the front face of the left side of the heating mechanism. The condensate water outlets are formed in the inner sides of the two ends of the bottom side of the heating mechanism. The high-pressure gauge and the low-pressure gauge are fixedly installed in the center of the front face of the heating mechanism. The fresh air valve is movably installed at the bottom end of the front face of the electric cabinet. The energy-saving and environment-friendly efficient dryer has the effects of energy conservation, environmental protection and simple operation.

The invention discloses a double-liquid high-pressure filling machine. The double-liquid high-pressure filling machine comprises a machine frame, a power source is installed on the machine frame, theoutput end of the power source is connected with a power transmission structure, a material cup A and a material cup B are arranged on the side, located on the power source, of the machine frame, thebottom end of the material cup A is connected with a material cup connecting base A, and the bottom end of the material cup B is connected with a material cup connecting base B; and a communicating pipeline is arranged between the material cup connecting base B and the material cup connecting base A, the bottom of the material cup connecting base B and the bottom of the material cup connecting base A are each connected with a pressurizing cylinder, and the power transmission structure is connected with the pressurizing cylinders through plungers. According to the double-liquid high-pressure filling machine, the material cup A and the material cup B with the same structure as well as the material cup connecting base A and the material cup connecting base B with the same structure are arranged, each of a valve body assembly A and a valve body assembly B is connected with a high-pressure pipe and an alemite fitting, the structure that a traditional double-liquid high-pressure filling machine adopts one set of high-pressure pipe and alemite fitting is changed, the two sets of independent high-pressure pipes and alemite fittings are adopted, and when one set is used and goes wrong, theother set can be used continuously.

The invention discloses a cart type three-dimensional laser scanning map device, and is aimed at providing a cart type three-dimensional laser scanning map device convenient to operate. The cart typethree-dimensional laser scanning map device comprises a machine frame with universal wheels at the lower end, a storage battery with a USB, a three-dimensional laser scanner and a tablet personal computer. A stand column with a height adjusting structure is arranged on the machine frame. The three-dimensional laser scanner is arranged at the upper end of the stand column. A handle for holding is arranged on the machine frame. The tablet personal computer is arranged on the machine frame and close to the handle and is in communication connection with the three-dimensional laser scanner. The storage battery is arranged on the machine frame and used for supplying power to the three-dimensional laser scanner and the tablet personal computer. A control key of the three-dimensional laser scanneris arranged on the handle. Map collecting can be realized before a robot arrives at the field, and it is ensured that the robot can be put into use at the first time after arriving at the field.

The invention provides a waterproof and shockproof intelligent safety terminal special for engineering machinery, and belongs to the technical field of engineering machinery, the waterproof and shockproof intelligent safety terminal special for the engineering machinery comprises a shell and a terminal server, the terminal server is located in the shell, and the top end of the shell is detachably connected with a cover plate; two groups of fixing mechanisms are arranged between the cover plate and the shell; the terminal server is protected through the shell, the sealing performance between the shell and the cover plate is guaranteed through the fixing mechanism, so that the terminal server can be effectively waterproof in the shell, the terminal server is protected through cooperation of the shockproof mechanism and the jacking mechanism, the terminal server can be subjected to multi-directional shock absorption, and the service life of the terminal server is prolonged. The terminal server is well protected in the shell, the situation that internal parts are affected by large-amplitude vibration of the terminal server is prevented, the multiple mechanisms are matched with one another so that the terminal server can effectively cope with emergencies in a construction site, and the stability of the terminal server is guaranteed.