128results about How to "Reduce the likelihood of accidents" patented technology

A running safety monitor system for car is composed of a car-carried digital image information acquiring unit with a built-in digital camera, and a car-carried embedded computer platform with a systematic image processing and decision control unit. Its monitor method includes such steps as acquiring the real-time image of ambient environment, generating digital image information, processing and analyzing the image information, classifying, and alarming when the signal class reaches an alarm standard.

The invention discloses an intelligent obstacle-avoiding AGV (Automatic Guided Vehicle) system and obstacle-avoiding method. The intelligent obstacle-avoiding AGV system comprises an AGV, a Hall electromagnetic sensor, a laser scanning radar, a Bluetooth module and an upper computer, wherein the Hall electromagnetic sensor is arranged on the lower part of the front end of the front surface of the AGV body; the laser scanning radar is arranged on the upper part of the body of the AGV; and an MCU (Microprogrammed Control Unit) master control module of the AGV communicates with the upper computer through the Bluetooth module. The AGV system is simple in structure and is high in cost performance. The obstacle-avoiding method based on the AGV system improves vehicle operation efficiency through the intelligent control on the vehicle by the system, and greatly reduces the possibility that the vehicle has an accident; and moreover, the laser scanning radar is wide in range and is long in distance, so that adaption of the AGV is greatly strengthened.

The invention discloses a grass cutter capable of protecting operation and a safety switch mechanism of the grass cutter. The safety switch mechanism comprises an inner pipe and a pipe sleeve piece which form into the sliding connection by means of sleeve joint, a safety switch arranged in the pipe sleeve piece and provided with a contact elastic sheet, a triggering piece for triggering the safety switch by being contacted with the contact elastic sheet when sliding in the inner pipe, and an elastic piece for driving the triggering piece not to be contacted with the contact elastic sheet; the safety switch, the triggering piece and the elastic piece are arranged at the same side of the inner pipe; and the grass cutter provided by the invention further comprises a main machine body and a hollow first-grade handle rod which is in rotatable connection with the main machine body on the basis of the safety switch mechanism, wherein the main machine body is provided with a motor and a control circuit controlling the motor, the pipe sleeve piece is arranged at the end head of the first-grade handle rod, the safety switch mechanism can guarantee the safety of operators, and when users are near to the main machine body by accident, the motor can be automatically turned off, so that the possibility of accidents can be reduced.

The invention discloses a traffic light control device for an electric vehicle and a use method of the traffic light control device. Traffic light information at an intersection is acquired through a wireless transmitting circuit; road information and acceleration information are transmitted to a main micro-processor according to the acceleration and speed information of the electric vehicle; line passing information of the electric vehicle is judged through a pressure sensor; whether the electric vehicle meets the condition of running a red light is judged by the main micro-processor, if the answer is positive, the main micro-processor controls an alarm circuit to give out an alarm, and emergency braking is performed; a warning is sent out through the alarm circuit during emergency braking, an alarm is given out through an indication lamp, and hidden safety risks are avoided in time; a speed measurement circuit and an acceleration measurement circuit are arranged on the electric vehicle and used for judging whether the electric vehicle runs a red light, unnecessary economic loss is avoided, the problem about life and property security caused after the electric vehicle runs a red light is effectively solved, the occurrence probability of accidents is greatly reduced, and the device has good application prospect.

A control system and method for the locating and communication equipment carried by bus is disclosed, which can used the GPS and GPRS to implement the visualized monitor to buses and provide the real-time running information to central schedule system, such as running state, running route and current position. The real-time communication and interaction between bus and schedule system, automatic processing, analyzing and comparison to acquired data, and the automatic video and audio bus stop report can be performed.

The invention discloses a road intersection traffic light control system and a control method thereof. Vehicle delay minimizing is not the only purpose, and the optimization objective is that the traffic safety of a pedestrian who crosses a road forcibly is guaranteed. Due to the fact that when an initial green light is over, the fact whether the pedestrian who is in conflict with the current phase condition crosses the road forcibly is judged, whether the duration time of the green light is prolonged is determined. When the initial green light is over, if the pedestrian who is in conflict with the current phase condition crosses the road forcibly, the duration time of the green light is prolonged, otherwise, the phase condition of the green light and a red light is changed normally. Due to the fact that ultimate prolonging time is set, not only is the safety of the pedestrian who crosses the road forcibly guaranteed, but also the delay at a road intersection is avoided. Therefore, the possibility that when the pedestrian crosses the road forcibly, accidents happen is reduced, the person oriented idea is emphasized, and the control system and the control method are particularly suitable for traffic control on a city intersection of a low-saturation city.

The invention relates to a combined process for hydrotreatment of heavy oil. According to the invention, fluidized bed reactors and a fixed bed reactor are combined together; raw oil and hydrogen enter from the bottom of the fluidized bed reactors and undergo a hydrogenation reaction under hydrogenation conditions of a fluidized bed; reacted materials are discharged from the top of the fluidized bed reactor, enter into the fixed bed reactor and undergo a hydrogenation reaction under hydrogenation conditions of a fixed bed, and a liquid material obtained in the fixed bed reactor is used as raw oil for a catalytic cracking unit; at least two tandem fluidized bed reactors are arranged, and a first fluidized bed reactor and a second fluidized bed reactor are switchable. For the fluidized bed reactors provided by the invention, arrangement of an on-line catalyst feeding and discharging system is not needed, so investment for equipment can be obviously reduced; the fluidized bed reactors can cooperate with the fixed bed reactor, so a running period of the equipment can be effectively prolonged, and a high-quality raw material is provided for the catalytic cracking unit.

The invention provides a fetal monitoring and pregnant woman sleep breath monitoring system based on a pressure sensor array. According to the monitoring system, the pressure sensor array (4) comprises a plurality of independent pressure sensors (1), unilateral pins of the pressure sensors (1) are connected with each other in the direction of each row, one tandem pin (5) extends out in each row, pins on the other side of the pressure sensors (1) are connected with each other in the direction of each line, and a transverse pin (6) extends out in each line. An integrated circuit processing module (2) comprises a single-pole multi-throw analog switch (7) and an SoC (system on a chip) (10), wherein the SoC (10) comprises an analog-digital converter (8) and a wireless data transmission module (9). The monitoring system can continuously monitor fetal movement conditions for 24 hours without special attention of a pregnant woman, and an internal effective fetal movement algorithm can remove interference including breath and daily action to acquire accurate data.

The invention relates to a distributed wireless monitoring device and system for a steam heat-supply network steam trap as well as a working method. The distributed wireless monitoring device comprises a pressure sensor and a processor module, wherein the pressure sensor is mounted a guide pipeline of the steam trap and used for monitoring a pressure value in the guide pipeline when the steam trap normally discharges condensate water or the steam trap is in failure; the processor module is connected with the pressure sensor and a wireless transmission module, and used for receiving normal water drainage amount scope information of a pipeline, where the steam trap is positioned, from a monitoring center server, analyzing the waveform of the pressure valve in the guide pipeline of the steam trap, identifying a normal water drainage action message and failure characteristic information to judge whether the steam trap is in corresponding failure or not, sending the failure alarm information to the monitoring center server in real time, meanwhile, summarizing the pressure valves in the guide pipeline of the steam trap at different times and sending the pressure valve in the guide pipeline of the steam trap to the monitoring center server. By adopting the distributed wireless monitoring device, whether the steam trap of the steam heat-supply network is in corresponding failure or not can be accurately judged and the service life of the steam trap is monitored.

The invention relates to a comprehensive control method and system for an airport apron. The method includes the following steps that: step 1, the motion positioning information of a calibration mobile target on the airport apron is acquired; step 2, a mobile target model is generated in the geographic information system of the airport apron according to the motion positioning information; step 3,whether the calibration mobile target conducts regulation violation behaviors is judged according to the mobile target model and predetermined rules; step 4, when it is determined that the calibration mobile target conducts regulation violation behaviors, alarm signals are generated; and step 5, the alarm signals are sent. With the comprehensive control method and system for the airport apron provided by the technical schemes of the invention adopted, the safety and timeliness of the control of mobile objects such as automobiles and airplanes on the airport apron can be improved, and the possibility of accidents on the airport apron can be reduced.

The invention relates to a construction method of a shield close-range undercrossing underground excavated tunnel of a composite stratum. The construction method comprises the steps of tunnel construction preparation; exit and entrance line underground excavated tunnel construction preparation; monitoring and measuring preparing work before crossing; control measures in the process of shield crossing; segment reinforcement in the shield tunnel; monitoring frequency control; and patrol control in a hole. The construction method has the beneficial effects that the method is simple in step, reasonable in design, easy and convenient to construct, low in input cost and high in implementation of actual engineering operation; through the construction method, the undercrossing tunneling efficiencycan be improved, and the posture of a shield tunneling machine is controlled, so that the possibility of tunnel accidents is reduced, and a favorable foundation for following successful crossing is laid; and the practical value is high, the using effect is good, compared with an existing construction method of undercrossing an underground excavated tunnel, the construction period is shortened, and the construction cost is greatly reduced.

The invention discloses a method for controlling left turn of a vehicle at a gateway of a road section building by utilizing a median separator. In the method, a median separator(3) is arranged in the middle of a road(1), and a vehicle turning road(5), a turnaround road(4) and a pedestrian and bicycle road(6) are arranged in the median separator(3); roads on both sides of the median separator(3) are communicated; due to the arrangement of the median separator in the road section and the arrangement of the vehicle road and the pedestrian and motorless vehicle road on the median separator, an indirect turning-left channel is provided for vehicles which are forbidden to turn left to drive out of the building, the number of conflict points caused by the direct movement and the left turning of vehicles are reduced, and simultaneously the interference on vehicles due to the crossing of pedestrians and motorless vehicles on both sides of the building is avoided, thereby facilitating the improvement of traffic efficiency and the lowering of accident threat.

The invention relates to a video recording device in a vehicle, which is characterized in that a camera (23) in the vehicle is arranged for capturing an image in the vehicle; when the state of a taxi (10) is set as using , the captured imaged is recorded in a memory card (29); and when the state is set as empty , the image data recording is stopped, so as to record the image of the passengers. Besides, the time of stopping the taxi (10) (with a speed less than 2km/h) is calculated. If the time reaches to a preset limited time, the image data recording is stopped, so when the taxi (10) is in trouble, the image data recorded in the period of time can be confirmed so as to help analyzing the status.

The invention provides a driving risk warning method and a driving risk warning device, which belong to the technical field of assist driving, and can at least partially solve the problem that a high-risk road section cannot be alerted in the prior art. The driving risk warning method comprises the steps of: acquiring a vehicle condition, a vehicle position and a predetermined route of a vehicle,and acquiring road conditions, traffic conditions and weather conditions of road sections on the predetermined route; classifying the corresponding road sections into high-risk road sections or low-risk road sections by utilizing a pre-established BP network according to the vehicle condition, the road conditions, the traffic conditions and the weather conditions; and sending warning information to the vehicle, so as to control the vehicle to send out warning when the vehicle drives to the high-risk road sections.

The invention discloses an engineering machine leveling control device, system and method and an engineering machine. The engineering machine comprises multiple supporting legs. Each supporting leg is driven by a corresponding supporting leg oil cylinder. Each supporting leg oil cylinder is correspondingly connected with a corresponding electromagnetic reversing valve in multiple electromagnetic reversing valves. The electromagnetic reversing valves are connected with a multi-way proportional valve. The control device comprises a first detection module used for detecting whether the supporting legs extend to the ground or not, a second detection module used for detecting inclination information in real time under the condition that the supporting legs extend to the ground, a processing module used for determining the supporting leg oil cylinders needing to be adjusted, the adjusting directions of the supporting leg oil cylinders and the control current of the multi-way proportional valve according to the inclination information, a first control module used for applying the control current to the multi-way proportional valve, and a second control module used for opening the electromagnetic reversing valves correspondingly connected with the supporting leg oil cylinders needing to be adjusted according to the adjusting directions so as to make the supporting leg oil cylinders needing to be adjusted move in the adjusting directions. Therefore, the engineering machine can be adjusted to the horizontal state.

The invention discloses an upper corner treatment method for a large-dip-angle mining work face. An interval construction method is adopted, that is, each time of construction is completed in the weighting interval of the work face. Specifically, two rows of single supporting pillars are erected at the back of an end supporting frame, and a plurality of segmented isolation walls are arranged at the adjoining position of an upper gate road and a goaf in the direction parallel to an upper gate road roadway at equal intervals; a plurality of flexible air bags are installed beside the segmented isolation walls correspondingly and near the side of the upper gate road; the goaf is grouted; roof pre-splitting is carried out at a side thick hard roof of the goaf; the flexible air bags and the single supporting pillars are detached, and upper corner treatment is completed after the roof is collapsed; and construction is conducted circularly until mining of the work face is completed. Compared with the prior art, the upper corner treatment method for the large-dip-angle mining work face has the characteristics of being easy, convenient and fast to construct, low in labor intensity, good in safety and the like, and is particularly suitable for upper corner treatment of an inclined mining work face with the inclination angle of 30-45 degrees or a steeply inclined mining working face.

The invention provides a method for replacing a drop-out fuse of a charged working robot based on force feedback master-slave control. A mechanical arm, a main manipulator and an industrial personal computer constitute a force feedback master-slave control system. The industrial personal computer calculates the torque data of each joint of the main manipulator according to the force data at the end of the mechanical arm, and controls each joint of the main manipulator to output torque through a control interface of the main manipulator, so that the main manipulator feeds back the force, and anoperator confirms the strength of the mechanical arm according to the feedback force of the main manipulator; the operator changes the position and pose of the tail end of the main operator; the industrial personal computer calculates an expected value of the speed vector of the tail end of the mechanical arm according to the angle data of each rotating joint of the main manipulator, and controlsthe movement of the mechanical arm according to the expected value through the control interface of the mechanical arm so as to change the strength of the mechanical arm. The method for replacing thedrop-out fuse of the charged working robot based on force feedback master-slave control in the invention improves the sense of immediacy of operation and can judge whether the operations are accurateand in place or not more accurately.

The invention discloses an automatic arranging device for a chip injection molding machine. The device comprises a first rack and a second rack. The device is characterized in that a fixation support plate and an electric control cabinet are arranged on the first rack, an automatic arranging mechanism is arranged on the fixation support plate, and a guide round tube is arranged in the automatic arranging mechanism. A vibration disc is arranged on the second rack, a guide mechanism is arranged on the vibration disc, one end of the guide mechanism is communicated with one end of the guide round tube, and the electric control cabinet is electrically connected with the automatic arranging mechanism and the vibration disc. The device has the advantages of being fast in screening and arranging, reliable in operation, high in efficiency, reliable in operation performance and capable of reducing the cost and improving the automation degree.