16results about How to "Guaranteed normal startup" patented technology

The present application relates to a kind of rotary compressor, gas compression system, refrigeration system and heat pump system, rotary compressor includes cylinder, piston, crankshaft, swing block and sliding vane, the compression chamber and swing groove are arranged inside cylinder, piston is arranged in the compression chamber, swing block is rotationally arranged in swing groove, sliding slot is arranged on swing block, sliding vane is slidably arranged in sliding slot, and one end of sliding vane and the side wall of piston abut, the other end between the inner side wall of the cylinder is provided with the driving assembly for driving the one end of the sliding vane and the side wall of the piston abut, crankshaft is linked with piston, and drives piston to eccentric rotation in the compression chamber, swing block is synchronously swung back and forth in swing groove. By the sliding vane and the rocker block of prior art are designed as a whole, the swing amplitude of sliding vane and swing block can be greatly reduced, the friction power consumption is effectively reduced, and the cold leakage between sliding vane and piston can be reduced, the lubrication state between swing block and cylinder is improved, and the friction loss between sliding vane and cylinder is reduced.

The invention relates to the technical field of computers, and discloses a system starting method and device, electronic equipment, a storage medium and a program product.The method comprises the steps that after a server is powered on, a first storage chip and a second storage chip are verified, and abnormal storage chips which do not pass verification and normal storage chips which pass verification are determined; the first storage chip and the second storage chip are used for storing firmware information; if the abnormal storage chip and the normal storage chip exist, forbidding the access control right of the access interface corresponding to the abnormal storage chip and releasing the access control right of the access interface corresponding to the normal storage chip; and releasing the reset signal of the substrate management controller, wherein the substrate management controller is started after accessing the normal storage chip. According to the method, the advantages of the double storage chips are fully utilized, the abnormal storage chip can be prevented from being accessed, and normal starting of the system is guaranteed.

This utility model discloses a piston-type pneumatic actuator, including a drive housing and a cylinder housing. The cylinder housing is located on one side of the drive housing, and a drive chamber is provided inside the drive housing. A pressure plate is provided inside the cylinder housing, and an air chamber is provided on one side of the pressure plate. An output shaft is provided on the other side of the pressure plate. The output shaft passes through the cylinder housing and extends into the drive chamber for reciprocating movement. A valve stem is rotatably mounted inside the drive housing, and one end of the valve stem extends into the drive chamber and is connected to a connecting rod. A strip-shaped groove is provided on the connecting rod. A drive block is fixedly connected to the portion of the output shaft located in the drive chamber. A slide rod is provided on the drive block, and the slide rod slides in the strip-shaped groove. The output shaft drives the connecting rod and the valve stem to reciprocate and rotate reciprocally through reciprocating movement. This solution converts linear motion into the reciprocating rotational motion of the valve stem, thereby realizing the opening and closing control of the valve, and has the advantages of smooth movement and fast response.

The invention discloses a reference-free wide power supply voltage detection circuit, and relates to the technical field of integrated circuits. The detection circuit comprises a Zener diode, a first resistor, a first current mirror module, a second resistor, a first NMOS tube and a buffer output module. The cathode of the Zener diode is connected to one end of the first resistor, the anode of the Zener diode is grounded, and the other end of the first resistor is connected to power supply voltage through the first current mirror module; one end of the second resistor is connected to the power supply voltage through the first current mirror module, and the other end of the second resistor is grounded; the source electrode of the first NMOS tube is grounded, and the drain electrode is connected to an internal power supply through a first active resistor; the grid electrode of the first NMOS tube is connected to one end of the second resistor to form a sampling node, the voltage of the sampling node is compared with the threshold voltage of the first NMOS tube, when the voltage of the sampling node is larger than the threshold voltage of the first NMOS tube, the first NMOS tube is conducted, and the current power supply voltage is judged to meet the system requirement.

This invention relates to the field of automotive parts technology, and provides a dual-valve controlled PRV valve, comprising: a valve seat having an intake chamber and an exhaust chamber therein, the intersection of which forms a cavity with one end communicating with the outside air; a piston movably inserted into the cavity, with an exhaust hole penetrating the first and second parts at the center of the piston; a diaphragm movably connected to the upper end of the piston; a spring sleeved on the outer wall of the piston, with the end of the spring abutting against the diaphragm on the moving side; and a seal disposed within the cavity. Compared with the prior art, the advantage of this invention is that by providing a seal within the valve seat that seals the piston and the cavity, when the negative pressure in the cavity is high, the seal and the diaphragm together achieve a seal on the intake and exhaust chambers. Under the same operating conditions, this makes it easier to achieve the sealing function, preventing excessively low crankcase negative pressure and ensuring normal engine starting.

The utility model relates to a tandem type double-rotor unmanned aerial vehicle transmission system, which is characterized in that reversing speed reduction units of a front rotor and a rear rotor are connected through a plurality of sections of synchronous long shafts, and the tandem type double-rotor unmanned aerial vehicle transmission system comprises a three-stage speed reduction structure, namely a first-stage synchronous belt speed reduction structure, a second-stage bevel gear speed reduction structure and a third-stage planetary gear train speed reduction structure, the second-stage bevel gear speed reduction realizes power transmission through a bevel gear, and the third-stage planetary gear train speed reduction transmits power to a rotor shaft through meshing of a planetary gear, a sun gear and a gear ring; the system solves the problems that a traditional tandem rotorcraft transmission system is single in structure, slow in clutch response, difficult in engine starting, insufficient in power, poor in emergency risk avoiding capacity and difficult to maintain, and the performance and reliability of the unmanned aerial vehicle are improved.

The application belongs to the technical field of battery control, and particularly relates to a throw load protection circuit based on control of a positive electrode battery management system and a power supply device. The throw load protection circuit is connected in parallel with a charge-discharge control circuit and is arranged between a battery total positive electrode of a starting battery and a battery bus positive electrode. The throw load protection circuit comprises a first unidirectional switch unit, an energy storage unit, a second unidirectional switch unit and a third unidirectional switch unit connected in series. The first unidirectional switch unit is connected with the battery total positive electrode of the starting battery. The third unidirectional switch unit is connected with the battery bus positive electrode of the starting battery. The second unidirectional switch unit and the third unidirectional switch unit are opposite in conduction direction, and can stabilize the voltage between the battery bus positive electrode and the battery bus negative electrode below a preset threshold value at the moment when the charge-discharge control circuit is disconnected, thereby improving the throw load protection effect of the starting battery.

The embodiment of the invention provides a firmware updating method and device, equipment, a vehicle, a storage medium and a program product, and relates to the technical field of embedded software. The firmware updating method comprises the steps of obtaining first firmware data of to-be-updated target firmware in a controller in response to a received firmware updating instruction for the controller, and determining a firmware reading address corresponding to the target firmware as a first software partition; writing the first firmware data into a second software partition, wherein the second software partition is different from the first software partition; reading second firmware data written in the second software partition for the first firmware data, and verifying whether the second firmware data is consistent with the first firmware data or not; and if the second firmware data is consistent with the first firmware data, switching the firmware reading address of the target firmware to the second software partition. The method and the device are used for guaranteeing normal operation of the controller after firmware updating.

The utility model provides an RFID (radio frequency identification) tag recovery device, belongs to the technical field of tags, and solves the technical problems that tags cannot be quickly classified, so that manual intervention is possibly needed to classify and process the tags in the recovery process, the labor cost is increased, and errors and inconsistency are possibly caused. An RFID tag recycling device comprises a shell, a recycling bin and a smashing bin are formed in the top of the shell, one side of the bottom of the recycling bin and one side of the bottom of the smashing bin are both slidably connected with collecting boxes, the surface of the side, close to a conveying belt, of the shell is fixedly connected with two air nozzles, the two air nozzles are both matched with the conveying belt, and one side of each bin baffle is provided with a bin door. And closing mechanisms used for closing the bin doors are arranged on one sides of the two bin doors, and a card reader is fixedly connected to the interior of the side, close to the conveying belt, of the shell. According to the utility model, through the arrangement of the air tap, the labels can be quickly classified.

The application discloses a self-recovery circuit and relates to the technical field of power supply control. The self-recovery circuit comprises an auxiliary power supply module, a main power supply module and a switching module. The charging end of the auxiliary power supply module is connected with an auxiliary power supply device, and the power supply end of the auxiliary power supply module is connected with a PWM chip. The charging end of the main power supply module is connected with a main power supply device, and the power supply end of the main power supply module is connected with the PWM chip. The switching module is connected in parallel with the PWM chip, the input end of the switching module is connected with the power supply end of the main power supply module, the output end of the switching module is connected with the control end of the auxiliary power supply module, and the switching module controls the on-off of the auxiliary power supply module through the control end. After the main power supply device enters a protection state, the switching module turns on the auxiliary power supply module, so that the auxiliary power supply module supplies power to the PWM chip again, and the self-recovery function of the PWM chip is realized.

The application relates to the technical field of ECU management, and discloses an ECU boot dynamic self-recovery system, method and device based on an on-vehicle diagnosis communication protocol and physical sensing, which are characterized in that the technical scheme comprises a microcontroller, a nonvolatile memory, a memory protection unit and a power supply voltage detection unit; the microcontroller runs the boot guarantee module, the logic evolution module, the dynamic driving unit and the snapshot management and power-off solidification unit; the boot guarantee module is used for power-on priority startup, snapshot state reading, fault self-recovery and breakpoint continuation; the logic evolution module is used for executing the boot loader main body service; the dynamic driving unit is loaded into the running memory and is used for executing the erasing and writing operation on the updatable boot area and updating the snapshot information in the running memory in real time during the flashing process; the power supply voltage detection unit is used for triggering the power-off processing; and the snapshot management and power-off solidification unit is used for responding to the power-off signal and writing the snapshot information into the snapshot storage area.

The utility model relates to the technical field of electrical equipment manufacturing, and discloses a switch equipment connecting rod for a totally-enclosed insulated looped network, which comprises a main body assembly and a looped network cabinet, and a display screen is arranged on the looped network cabinet; the fixing assembly is arranged at one end of the ring main unit and comprises a fixing part, the fixing part comprises a fixing frame, the fixing frame is fixed at one end of the ring main unit, a fixing rod is inserted into the inner wall of the fixing frame, the outer side of the fixing rod is sleeved with a clamping ring, a plurality of tooth grooves are formed in the clamping ring, and teeth are arranged on the inner walls of the tooth grooves. The beneficial effects of the utility model are that the connecting rod can be fixed when the connecting rod is not used and is placed at one side of the switch cabinet, and after the connecting rod is fixed, the connecting rod can be always kept at a fixed position at one side of the switch cabinet, so that the connecting rod cannot be randomly moved by a worker as irrelevant sundries due to no fixing measures, the discarding condition caused by misjudgment is effectively avoided, and the working efficiency is improved. The device can be in an available state at any time when needed, and the subsequent normal starting and operation of the switch equipment are ensured.

The invention discloses a static load-oriented dual kernel optimization method. The method comprises the following steps of: obtaining a target static load; performing source code mapping on the collected addresses to obtain a corresponding relation between the function call chain and a kernel source code position; extracting a related Kconfig constraint based on a source code position, constructing a Boolean satisfiability problem, and solving to obtain a load related kernel configuration set; performing multi-dimensional configuration item repair based on the configuration set, and performing virtualization startup test iterative verification to obtain a bootable target kernel configuration file and construct a kernel; the scheduler parameters are optimized and modeled into a reinforcement learning problem, parameter searching and strategy updating are carried out on the scheduling strategy and the key runtime parameters based on lightweight Q-learning, and an optimized scheduling parameter set is output; generating an optimized kernel mirror image according to the target kernel configuration file and the scheduling parameter set, and deploying and running in a static load environment; the system performance is further improved.

An intelligent early-warning anti-loosening device relates to the field of bolt anti-loosening early warning and comprises an early-warning nut, an alarm switch is arranged on one end face of the early-warning nut, a telescopic cover capable of covering the alarm switch is arranged on the end face, where the alarm switch is located, of the early-warning nut, and the telescopic cover comprises a telescopic cylinder and a gasket. One end of the telescopic cylinder is fixed to the end face of the early warning nut, the other end of the telescopic cylinder is connected with the gasket, a center through hole with the diameter not smaller than the inner diameter of the early warning nut is formed in the gasket, the telescopic cylinder, the gasket and the early warning nut are coaxially distributed, and the gasket and the alarm switch can be separated in the natural state of the telescopic cylinder. And the telescopic cylinders are in contact in a compressed state. The early-warning anti-loosening device is used for solving the technical problems that in an existing early-warning anti-loosening device, due to the size difference between a main connecting nut and an early-warning nut, alarm triggering fails, a gasket sinks in a non-horizontal installation scene, and a switch is prone to being interfered in the outdoor environment.

This invention discloses an integrated cooling and internal cooling system for robot charging piles based on a heat exchanger, including a charging pile and a robot. The charging pile is equipped with a refrigerant output quick-connect interface and a refrigerant input quick-connect interface. Both the charging pile and the robot are equipped with a cooling module. The robot is also equipped with an internal thermal management system component, a heat exchanger H, a refrigerant output quick-connect terminal, and a refrigerant input quick-connect terminal. The heat exchanger H is equipped with a refrigerant output terminal U and a refrigerant input terminal NI. This invention can reduce the temperature of the heating element to below the ambient temperature, expand the operating temperature range, and has heating and waste heat recovery functions, significantly improving the adaptability to low-temperature environments. It handles high-power charging and high-heat conditions through external devices, reduces the number of internal parts of the robot, and provides dual-mode internal and external cooling to avoid design redundancy and save costs and space.

The invention discloses an electromagnetic heating control system and an air conditioner, the electromagnetic heating control system comprises a frequency conversion topology circuit structure, the frequency conversion topology circuit structure comprises an inversion unit, and the phase angle corresponding to the interval of the PWM count of a triangular carrier between zero and a PWM period set value is 60 degrees; the control adjusting module is used for adjusting the duty ratio of two phases of PWM to be different from the duty ratio of the rest phase of PWM when the alternating current motor driven by the inversion unit needs to be heated, so that the phase difference between the two phases of PWM is 120 degrees, the phase difference between one phase of PWM and the rest phase of PWM is larger than 120 degrees, and the phase difference between the other phase of PWM and the rest phase of PWM is larger than 120 degrees; and the phase difference between the other phase of PWM and the rest phase of PWM is less than 120 degrees. According to the invention, by adjusting the PWM comparison value of two adjacent phases, the direct current bias is superposed to the three-phase alternating current, so that the effective electromagnetic heating of the motor is realized.