91results about How to "Avoid personal safety" patented technology

The invention discloses a coal mine emergency rescue and command system and method based on a wireless Mesh ad hoc network. The system disclosed by the invention comprises an emergency rescue and command center, a plurality of communication relays and a rescue monitoring terminal, wherein the emergency rescue and command center is used for receiving and displaying feedback data from each communication relay as well as analyzing and generating audio data and sending the data to a wireless communication module in the corresponding communication relay; each communication relay comprises a wireless communication module, a first wireless Mesh ad hoc network module, a first person positioning module, a first control module and a voice communication module; and the rescue monitoring terminal comprises a disaster area environment information acquisition module, a second person positioning module, a second wireless Mesh ad hoc network module, a second control module and a voice communication module. The system and the method which are disclosed by the invention can monitor environmental parameter data in a disaster area under a shaft and can position the person under the shaft, the emergency command center receives and displays data fed back by the disaster area, and thus the command staff makes up a rescue plan.

The embodiment of the invention provides a testing system and method. The testing system comprises an upper computer, an ADAS test rack and a tested controller. The upper computer is used for receiving test parameters input by input equipment, generating a control instruction according to the test parameters and sending the control instruction to the tested controller. The ADAS test rack is used for generating a controlled object simulating model, and a tested virtual vehicle is obtained through joint constructing of the controlled object simulating model and the tested controller. The testedcontroller is used for receiving the control instruction sent by the upper computer and controlling the virtual vehicle to complete virtual test aiming at an ADAS function system according to the control instruction. When the testing system and method are applied for testing, testing can be conducted through the mode of combination of the virtual vehicle, the virtual scene and the real controller,consumption of manpower and material resources is greatly lowered, and meanwhile, the influence on personal safety and the vehicle loss in the real vehicle testing process is avoided.

The invention discloses a preparation method for safety chip type multilayer ceramic capacitors. Internal electrode patterns are printed in parallel on each ceramic dielectric film, a predetermined number of ceramic dielectric films are laminated in a way that the opposite internal electrode patterns of the neighboring ceramic dielectric films at the same position are laminated in a staggered manner, so that a laminated plate is formed, and the laminated plate is cut to obtain a safety chip type multilayer ceramic capacitor green body; and as the laminated plate is cut, the cut surface has the internal electrode patterns which appear at intervals, and the interior of the cut laminated plate comprises internal electrodes which are suspended relative to the surface of the cut laminated plate. As the interior of the safety chip type multilayer ceramic capacitor prepared by the preparation method for safety chip type multilayer ceramic capacitors has the suspended electrodes, the open circuit state of a circuit is guaranteed, the problem that short-circuiting can easily take place when the capacitor is cracked under stress is prevented, and the problem that personal safety is endangered by electric stock as the result of the short-circuiting of the capacitor is also prevented.

The invention discloses an IGBT circuit having a dual-isolation characteristic and a control method thereof. Therefore, a problem that a pulse signal outputted by a microprocessor can not drive an IGBT to work directly can be solved. A dead zone module enables two paths of PWM pulse signals generated by the microprocessor to generate dead zone time, so that simultaneous conduction of an upper IGBT tube and a lower IGBT tube can be avoided. An optical coupler isolation module carries out optoelectronic isolation on an input terminal signal and an output terminal signal to avoid mutual interference between signals. With an H-bridge push-pull circuit drive module, a pulse current value is increased to drive a high-frequency transformer; generation of a peak voltage and a current can be prevented by using a transformer post-stage drive module, so that forward turning-on voltage and backward turning off of the IGBT can be guaranteed. According to the invention, power amplification is carried out on a signal by using a dual isolation way; damages of a control circuit can be prevented while the IGBT is driven; driving circuit safety is guaranteed effectively when a fault occurs at the system; and excessive losses and personal safety can be avoided.

The invention discloses an electromagnetic lead screw driving type precise-punching presser which comprises a presser body, a working platform, a controller and a stand, wherein the presser body is fixed on the working platform; the stand is arranged above the working platform, and is movably connected with the stand through a connecting plate. The stand is provided with an electromagnetic lead screw system which comprises an electromagnetic nut and a punch shaft. The electromagnetic nut is fixed on the stand, and comprises two circular cores. Each circular core is divided into two parts by a coil. A circular permanent magnet is clamped between the two cores. The punch shaft penetrates through the stand and the electromagnetic nut, and has a gap with the electromagnetic nut. Threads which have the same pitch are processed at the inner hole side of the circular core and the part of the punch shaft. The controller is used for controlling the density, the frequency and the phase of the current in the coil. The invention has the advantages of adjustable speed and punch force, quick response, high guiding and positioning precision, simple structure, convenient control, less component consumption, low noise, convenient maintenance and long service life.

The invention discloses a switch-class device state evaluation method based on impedance parameter on-line identification. The switch-class device state evaluation method is suitable for switch-class devices in the 3 / 2 connection mode of a transformer substation. Real-time current data of the switch-class devices are used, actual operational data such as line currents and transformer currents inside the transformer substation are combined, resistance distribution conditions of the switch-class devices are identified, therefore, the resistance change conditions of the switch-class devices can be obtained, the abnormal resistance value condition caused by defects of the switch-class devices can be timely discovered, and the important reference basis is provided for device timely defect elimination. According to the switch-class device state evaluation method based on impedance parameter on-line identification, state evaluation on the switch-class devices can be dynamically carried out in an assisting mode, the operation is simple, computing is reliable, the operational cost is much lower than that of site detection testing, and the good adaptability and the good real-time performance are achieved. The switch-class device state evaluation method fills the blank in the field in China and provides a research thought for state maintenance of other high-voltage devices.

The invention provides a high-safety intelligent power distribution cabinet. The high-safety intelligent power distribution cabinet comprises a power distribution cabinet body; an electronic lock is arranged on the cabinet door of the power distribution cabinet body; an identification apparatus is arranged on the cabinet body of the power distribution cabinet body; a cavity is formed in the cabinet body; the cavity is divided by partition plates; storage rooms are formed between the partition plates and the cavity; an electric quantity detection unit is arranged in the cabinet body; a distancemeasuring sensor is also arranged on the cabinet door; a data collector is also arranged in the cabinet body for collecting the environment data in the cabinet body; and the electronic lock, the electric quantity detection unit, the distance measuring sensor and the data collector are all electrically connected with the identification apparatus. A human face identifier is adopted to identify information of an approached person, and the identified information is compared with pre-stored data; if identification is successful, the power distribution cabinet is opened by inputting a password through the electronic lock; and if identification is in failure, reminding is performed through an alarm and the information is transmitted to a remote mentoring center to remind, so that loss of personal safety and property safety caused by illegal operation by non-staffs can be prevented.

A CAN bus fault monitoring and displaying system for a vehicle-mounted controller comprises a power CAN network and a vehicle body CAN network, wherein the power CAN network is provided with an engine controller, a gearbox controller, an electronic steering lock controller and a steering power-assisted controller; and the vehicle body CAN network is provided with a vehicle body controller, an airbag controller, an air conditioner controller and a multimedia controller. The CAN bus fault monitoring and displaying system for the vehicle-mounted controller is characterized in that output ends of the power CAN network and the vehicle body CAN network are connected with a gateway controller; an output end of the gateway controller is connected with an input end of a CAN network monitoring unit for monitoring controller network state and recording fault information; and through an instrument controller, the output end of the vehicle body CAN network is connected with an input end of a CAN network fault displaying unit capable of receiving and displaying bus fault information. According to the invention, as the instrument controller is used as the CAN network fault displaying unit, a driver can know automobile controller network fault states in time so as to adopt corresponding measures so that vehicle and personal safety problems are avoided.

The invention relates to a combined pulverized coal storage and supplying device, which is characterized by comprising a pulverized coal storage tank, wherein a bag-type dust remover is arranged at the inner top of the pulverized coal storage tank; a high level probe is arranged on the upper side wall of the pulverized coal storage tank; a low level probe is arranged on the lower side wall of the pulverized coal storage tank; a plurality of temperature sensors are arranged between the high level probe and the low level probe; the lower part of the pulverized coal storage tank is divided into two tapered bins; a pneumatic fluidizing device and an electric blanking rotary valve are arranged at the bottoms of the two tapered bins; the feed ports of two weighing tanks are correspondingly connected with the discharge holes of two taper bins of the pulverized coal storage tank respectively; the side walls of both the two weighing tanks are hung on a group of weighing sensors fixed on an operating platform; two stirring devices are arranged at the bottoms of the two weighing tanks respectively; a pressure balance tube is arranged between the two weighing tanks and the pulverized coal storage tank respectively; two feeders both comprise feeding screws arranged below the bottoms of the weighing tanks; two primary air fans with hand air valves are arranged below the feeding screws respectively; and a pulverized coal feeding pipe is communicated with the inner top of the pulverized coal storage tank.

The invention provides an emergency power supply system. The system comprises a battery pack, a monitor, a first controller and a frequency converter, wherein when alternating current (AC) information acquired by the monitor indicates AC supply stops, the monitor triggers the first controller which controls the battery pack to output a direct current (DC); and the frequency converter inverts the DC into AC and sends the AC to a working pump in an oil pump unit. In the emergency power supply system, by acquiring the AC supply information, when the AC supply stops, the battery pack is started to output the DC which is inverted into the AC and then the AC is sent to the working pump in the oil pump unit, thus providing a safe emergency power guarantee for large diffusions of blast furnace tops, hot blast heaters and other important blast-furnace equipment, and solving the technical problem that human safety and production safety are harmed seriously because a blast furnace system is in a dangerous state even explodes, which is caused by the factor that required emergency powers cannot be provided for the blast furnace system in time when the AC supply stops in the prior art.

The embodiment of the invention discloses an automatic driving method, an ADS and an automatic driving vehicle, which can be applied to the field of automatic driving and can be applied to intelligent vehicles, automatic driving vehicles, connected vehicles and the like, and comprises the following steps: adding a health physiological data range in a design operation range ODD as a group of application ranges of the ODD, an automatic driving system ADS receives real-time physiological data, collected by monitoring equipment, of a driver and passengers, when the data deviates from the range and lasts for a certain duration, the ADS judges that the health of the driver and passengers is abnormal, a first driving strategy is executed according to the deviation degree and the duration, sudden health accidents of the driver and passengers are dealt with in time, and the traffic accident rate is reduced; when the real-time physiological data is not recovered to the healthy physiological data range within the preset duration, the ADS sends out an authorization request, a second driving strategy is executed under the authorization of a driver and passengers, the second driving strategy considers that the vehicle is stopped and also comprises but is not limited to measures such as help calling and medical resource reservation, and early detection and timely response are achieved.

The invention discloses a control method for insulation detection modules of a photovoltaic energy storage system. The control method comprises the following steps of: presetting an insulation resistance threshold value in a control module, and enabling the control module to transmit a detection instruction to each insulation detection module; acquiring insulation resistance to ground of a positive electrode and a negative electrode of each running battery unit and sending the acquired information to the control module by means of each insulation detection module; comparing the acquired information with the preset insulation resistance threshold value by means of the control module, and if the insulation resistance to ground of a certain battery unit is smaller than the insulation resistance threshold value, displaying that the battery unit is abnormal in insulation and giving an alarm by means of the control module; and if the insulation resistance to ground of each battery unit is greater than the insulation resistance threshold value, displaying normally by the control module, and meanwhile, maintaining operation of the insulation detection module on one path of battery unit inoperation, so that the insulation resistance to ground of the positive electrode and the negative electrode of the battery unit is acquired and detected when the insulation detection module is in different switch switching states, and controlling the rest insulation detection modules to be turned off.

The invention relates to a switchgear and an interlocking mechanism between its grounding switch and the cabinet door. The interlocking mechanism includes a mounting frame, a main shaft rotatably arranged on the mounting A return spring is provided between the frames, a first stop structure is provided on the main shaft, a second stop structure and a step-off structure are provided on the chain shaft, the chain shaft has an end face for pushing the door, and the chain shaft is on the guide movement stroke After being pushed by the door, there is a locking position where the second blocking structure and the first blocking structure are blocked and matched in the circumferential direction, and an unlocking position where the abdication structure corresponds to the first blocking structure under the action of the return spring. When the cabinet door is opened, the chain shaft is under the action of the return spring, and the first stop structure and the second stop structure stop and cooperate. Personal safety or property damage due to misuse.

The invention discloses a multi-robot cloud control system based on a cloud side end hybrid computing environment. The multi-robot cloud control system comprises an execution module, a communication module, a knowledge base module, an intelligent algorithm module and a general control module; the execution module comprises a robot and a sensing device, and is responsible for acquisition and processing of sensing data, executing a control instruction; the communication module is responsible for forwarding and processing real-time and dynamic data in a cloud side end environment; the scene general knowledge base module is used for storing general knowledge involved in a scene and providing a unified calling interface; the intelligent algorithm module is responsible for providing an intelligent perception and autonomous decision algorithm required in the scene; and the general control module is responsible for arranging and scheduling robots in the scene to cooperatively complete a specified task. The multi-robot cloud control system is stable, efficient and high in fault tolerance.

The invention discloses a cleaning system of an air conditioner outdoor unit. The system comprises an outdoor unit shell and a condensation water output pipe, a spraying pipe is arranged on the portion, above a heat exchanger, in the outdoor unit shell, a sewage collection disk is arranged on the portion, below the heat exchanger, in the outdoor unit shell, and the sewage collection disk is connected with a sewer pipe thought a blow-off pipe; the system further comprises a liquid storage tank which is used for storing cleaning fluid, and the liquid outlet end of the condensation water output pipe is connected with the liquid inlet end of the liquid storage tank; the liquid storage tank is connected with the spraying pipe through a liquid conveying pipe, and a power pump which is used for pumping the cleaning fluid is arranged on the liquid conveying pipe. According to the cleaning system of the air conditioner outdoor unit, the heat exchanger of the outdoor unit can be cleaned, the safety coefficient of cleaning is improved, waste of water resources and labor is avoided, and secondary pollution to the environment due to cleaning is avoided.

The invention discloses an air conditioning system and a control method of the air conditioning system. The air conditioning system comprises a photosensitive element, a controller and a sensing device; the photosensitive element is used for sensing current indoor optical radiation changes and determining whether the current time is daytime or night according to the optical radiation changes; thephotosensitive element is connected with the controller, and if the photosensitive element determines that the current time is daytime or night, the controller controls the air conditioning system tostart a first sensing mode or a second sensing mode; and when the air conditioning system runs in the first sensing mode or the second sensing mode, the sensing device senses whether a moving object occurs in a room currently or not in an unmanned state. According to the scheme, the defects that in the prior art, the functions of an air conditioner are single, and the intelligent degree of the airconditioner is low can be overcome, therefore, the controller can accurately determine whether the moving object occurs in the room currently or not in the unmanned state, a user can be convenientlyreminded in time, and losses are avoided.

The invention discloses an ultralow-temperature fuel gas temperature protection method for an LNG (liquefied natural gas) engine. The method includes the following steps: step 1, mounting temperature sensors at an outlet of a vaporizer, an inlet of a fuel gas metering valve and a water outlet of the engine in advance respectively, correspondingly collecting temperature TNGT of the outlet of the vaporizer, temperature NGT of the inlet of the fuel gas metering valve and temperature ECT of the water outlet of the engine respectively, and presetting TNGT control parameters, NGT control parameters and ECT control parameters respectively; step 2, after an engine ECU (electronic control unit) is power-on, performing engine start protection through judgment on the TNGT; step 3, reading the TNGT, the NGT and the ECT, and through logical operation, judging to perform torsion-limited engine operation, normal engine operation or engine stall; step 4, if the torsion-limited engine operation or the normal engine operation is performed in the step 3, repeating the step 3. By the ultralow-temperature fuel gas temperature protection method, reliable low-temperature protection to a fuel gas supply system of the LNG engine is realized, so that personal injuries and economic losses both caused by low temperature during use of the LNG engine are avoided.

The invention provides a steel chimney installation overturn-preventing method and device. Foundation bolts serve as steel chimney overturn-preventing constraint points, the overturn-preventing deviceis connected with the outer wall of a chimney and comprises at least two pull rods, a connecting fastener, a first connecting mechanism and a second connecting mechanism, every two pulling rods are connected through the connecting fastener, the first connecting mechanism is used for connecting with the pulling rod of an uppermost layer and the steel chimney, and the second connecting mechanism isused for connecting with the pulling rod of an lowermost layer and the foundation bolts. The method and the device have the advantages that the steel chimney is safely and reliably installed, harm ofoverturning of the chimney caused by high-altitude wind loads or other outside adverse factors in the installation process of the chimney is eliminated, personal safety is protected, and property loss is avoided.

The invention discloses a multifunctional emergency lamp. The multifunctional emergency lamp comprises an emergency lamp body, a smoke alarm device, a pinhole camera, an electronic clock and an irradiation head. The smoke alarm device is embedded into the front surface of the emergency lamp body. The electronic clock is arranged on the portion, close to the lower end of a box door, of the front surface of the emergency lamp body. The pinhole camera is embedded into the front surface of the box door. The multifunctional emergency lamp is scientific and reasonable in structure and safe and convenient to use, the smoke alarm device is arranged, an alarm can be given out in the case of the fire, and the problems of damage to articles in a room and the injury to the personal safety caused by the fact that a user knows the fire too late are avoided; and the pinhole camera is arranged, the surrounding environment can be monitored in real time, and useful information is provided for the user;and the electronic clock is arranged, the time and the information of the environment temperature can be provided for the user in time, and the user can know the time and understand the environment conveniently. By the adoption of the design, the multifunctional emergency lamp is simple in structure and convenient to use.

The invention discloses a control method for an insulation detection module for a photovoltaic energy storage system. The control method comprises the following steps: sequentially numbering circuitsof battery units; presetting an insulation resistance threshold in the control module, and sending a detection instruction to each insulation detection module by the control module; each insulation detection module collecting the ground insulation resistance of the positive electrode and the negative electrode of each running battery unit and sending the collected information to the control module; if the insulation resistance to ground acquired by each battery unit is greater than an insulation resistance threshold value, the control module displaying that the positive and negative electrodesof each running battery unit are in a normal ground insulation state; meanwhile, the insulation detection modules on the battery units in multi-path operation being regularly switched and operated according to a sequence. Therefore, the ground insulation resistance of the anode and the cathode of the battery unit on the corresponding line can be collected and detected when the insulation detection module is in different switch switching states, and only the insulation detection module on one battery unit of the direct-current bus operates in each time period.

The invention belongs to the technical field of mine safety production, and particularly relates to a mine cage hoisting safety control system. According to the mine cage hoisting safety control system, s raster flickering warning device sends out frequency flash raster before the cage runs, and a safety protection area on a berth is blocked by a light curtain so that a worker can be warned; and meanwhile, a photoelectric detection sensor works to detect whether the worker passes the safety protection area or not, and if it is detected that the worker passes the safety protection area, the cage stops running so that the situation that when the worker passes the safety protection area to enter a shaft to perform related tasks, the phenomenon that serious personal safety of the worker is caused by the running cage can be avoided.

The invention discloses a gantry crane with a sweeping device. The gantry crane comprises a crane body and the sweeping device; the crane body comprises a portal frame, two bases and a travelling crane, wherein the portal frame is fixedly connected to the two bases, the travelling crane is slidably connected to the upper end of the portal frame and comprises a frame and a lifting device, the lifting device is arranged at one end of the inner side of the frame, and the sweeping device is arranged at the other end of the inner side of the frame; the sweeping device comprises a telescopic rod and a sweeping brush, the telescopic rod comprises a fixed rod and a movable rod, the movable rod is slidably connected to the interior of the fixed rod, and the sweeping brush is fixedly connected to the lower end of the movable rod; each base is provided with a waste material box, a pump is connected to the side end of each waste material box, a ventilation pipe is connected between each waste material box and the output end of the corresponding pump, and each ventilation pipe is led out from the input end of the corresponding pump. In this way, the gantry crane can achieve the purpose that the ground is swept while cargoes are lifted.

The invention discloses a turntable bearing oil overflow collection device, comprising an oil receiving mechanism, an oil storage container, an oil driving mechanism and an oil conveying passage, wherein the oil receiving mechanism is arranged on the inner side of a web plate of project machinery and further is adjacent to the lower side of a turntable bearing oil overflowing position of the project machinery; the oil storage container is fixedly arranged on the outer side of the web plate; the oil driving mechanism is arranged on the oil receiving mechanism; at least one oil conveying passage is arranged between the oil receiving mechanism and the oil storage container; and the oil driving mechanism is used for driving oil falling to the oil receiving mechanism from a turntable bearing to the oil conveying passage, so as to cause the oil to enter the oil storage container through the oil conveying passage. The invention also discloses the project machinery. In such a way, the project machinery and the turntable bearing oil overflow collection device can prevent the environmental pollution caused by oil leakage.

The invention relates to a switching system for supplying power to an emergency power supply. The switching system comprises a switching system, wherein interior of the switching system comprises an ATS automatic changeover switch, a controller module, a current detection chip, a main power supply and an emergency power supply, wherein the ATS automatic changeover switch is used for switching selection between connection circuits, the controller module is connected with the ATS automatic changeover switch and is used for controlling switching operation of the ATS automatic changeover switch, the current detection chip is connected with the controller module and is used for detecting current intensity in the circuit, the main power supply is connected with the current detection chip and isused for providing electric energy, and the emergency power supply is connected with the current detection chip and is used for providing electric energy for the main power supply when power is in failure. In the switching system for supplying power to the emergency power supply, automatic switching between the main power supply and the emergency power supply is performed, power supply is timely ensured, equipment damage and personal safety are prevented, switching is performed when electric quantity between the main power supply and the emergency power supply is relatively low, protection isachieved between the main power supply and the emergency power supply, loss generated on the power supplies when the electric quantity is excessively low is prevented, and the application safety of the circuit and the power supplies is protected.

The invention relates to an automobile accelerator emergency brake device. The automobile accelerator emergency brake device comprises a vehicle power supply, a first brake part, a supporting seat and an accelerator pedal, wherein the accelerator pedal is arranged on the supporting seat; the device further comprises a baffle, a brake contact, a conversion part and a second brake part; one end of the baffle is hinged to the supporting seat through a rotary shaft; a resetting spring is arranged between the other end of the baffle and the supporting seat; the brake contact is arranged at the part, corresponding to the central position of the baffle, of the supporting seat; the conversion part is arranged at the part, corresponding to the side face of the supporting seat, of the brake contact; the brake contact is used for controlling the conversion part through the supporting seat; and the conversion part is used for connecting with the vehicle power supply, the second brake part and a power supply starting switch through lead wires. The automobile accelerator emergency brake device provided by the invention has the beneficial effects that the device can be improved on the basis of an original accelerator brake part, is simple in structure and is relatively low in cost; and when a driver steps the brake to the extreme point incorrectly, an automobile has automatic stopping and emergency brake actions, so that the driving safety can be improved.

The invention discloses a solenopsis invicta powder spraying device which comprises a powder spraying component, a powder storage bin, a powder suction pipeline and a powder spraying power source, the powder spraying component comprises a powder spraying cover and a powder spraying pipeline, the powder storage bin is communicated with the powder spraying power source through the powder suction pipeline, and the powder spraying cover is communicated with the powder spraying power source through the powder spraying pipeline. The powder spraying component, the powder storage bin and the powder suction pipeline are all made of PVC materials. The device is high in structural strength, excellent in acid resistance, alkali resistance and corrosion resistance, light, easy to assemble and easy to carry, meanwhile, a certain safe distance is kept between an operator and an ant nest and toxic powder, personal safety caused by weather, wind direction and solenopsis invicta attacks is avoided, and the spraying device is easy, rapid and convenient to operate and suitable for popularization and application. Spraying is uniform, and the control effect is better.

The invention discloses a furnace lining detection device of an induction furnace body. The device comprises furnace body side sensors and further comprises a control system and a data instrument, wherein the furnace body side sensors are divided into at least two blocks installed in a furnace lining of the induction furnace body side, the sensors in at least one block are connected in series, the sensors in two blocks are are connected with the control system and the data instrument through wires, the control system and the data instrument are arranged outside the induction furnace body, and signals for feeding back impedance changes are transmitted to the control system and the data instrument. The control system comprises a data adjusting resistor VR1, a filtering circuit RC-L, a data comparison circuit K1-R1, an alarming executing circuit and a power-off protection circuit, and the data adjusting resistor VR1, the filtering circuit RC-L, the data comparison circuit K1-R1, the alarming executing circuit and the power-off protection circuit are sequentially connected. The detection device is capable of real-time detection and intelligent control, safe, reliable, low in cost, simple in structure, easy to operate and capable of preventing various potential hazards caused by the phenomenon that high-temperature molten steel penetrates through a furnace.