185results about How to "Avoid failure to start" patented technology

The invention discloses a fault detection and recovery apparatus. The fault detection and recovery apparatus comprises a self-detection module used for performing fault detection item by item according to preset self-detection items in a startup process, a generation module used for generating a corresponding fault report according to a detection result if a startup fault is detected, a recovery module used for performing restarting for the first time and performing fault recovery according to the fault report, and a starting module used for performing restarting for the second time when the fault recovery is completed and performing normal startup. The invention furthermore provides a fault detection and recovery method. According to the fault detection and recovery method and apparatus, professional maintenance personnel are not required to perform maintenance processing, so that faults encountered in the startup process can be automatically recovered, the problem that a mobile terminal cannot be normally started due to a startup fault is avoided, and user experience is improved.

The invention relates to an automobile starting and stopping protective system and method. The automobile starting and stopping protective system comprises a storage battery, an electric quantity sensor and an automobile body controller which is connected with a CAN bus. The electric quantity sensor is arranged at the output end of the storage battery, is used for detecting the discharge current of the storage battery and is connected with the communication end of the automobile body controller through a LIN bus. When an ignition lock ON gear switch is disconnected, the automobile body controller sends a network dormant message through the CAN bus, so that idle electronic equipment connected with the CAN bus enters the dormant state, and the automobile body controller enters the dormant state after the discharge current of the storage battery is smaller than a first threshold value. After the automobile body controller enters the dormant state, if the discharge current of the storage battery is larger than a second threshold value, constant electricity output by the storage battery is controlled to be disconnected in the set time, and a forced outage message and a failure warning message are sent through the CAN bus. Through the automobile starting and stopping protective system and method, the safety of an automobile can be improved, and the energy consumption of the automobile is reduced.

The invention discloses a vehicle self-contained refrigeration machine set, which comprises: a power system, a control system, a refrigeration system and an electrical heater set, wherein the power system is connected with the control system, the power system is used for supplying the control system with electric power and is controlled by the control system; the control system is connected with the refrigeration system and the electrical heater set, the control system collects working parameters of the refrigeration system and the states of a refrigeration box, generates a control signal after data processing and adopts the control signal to control the operations of the refrigeration system and the electrical heater set. Driven by an alternating current variable frequency motor or a direct current variable frequency motor, the machine set adopts a low-speed starting compressor, therefore the current is small when the machine set is started, and no impact on an engine system is caused, thus the allowance in selecting style of diesel engine is reduced, a generator set with smaller model is selected, and fuel consumption is reduced. In addition, by adopting an electrical heating manner to produce heat and to deforest, design of the refrigeration system is greatly simplified, and the heat producing and the deforesting are realized directly and simply.

The invention relates to a control method for software upgrading and failure rollback of hydrogen energy automobile controller, and belongs to the technical field of automobiles. The control method comprises the steps that upgrading push updating of automobile controller software is obtained, the upgrading software is downloaded and verified, whole automobile controller partition information and current version software information are obtained and sent to a remote server, upgrading flashing service is started, and the whole automobile controller responds to the flashing service to upgrade thesoftware; and the vehicle control unit finishes upgrading and feeds back an upgrading result, and if the Internet of Vehicles terminal receives upgrading failure information, a next upgrading failurerollback mechanism is entered: the vehicle control unit recovers the vehicle control unit software to version software before upgrading through a vehicle flashing technology. According to the controlmethod, the phenomenon that the automobile cannot be started due to failure of the automobile controller software in the upgrading process can be effectively avoided. The automobile using experienceof a user is improved, and both the cost and the time are saved.

The invention relates to a firmware update system, a method and a building method of a firmware of the firmware update system. The firmware update system is a firmware storage module of an electronic device which is provided with a first firmware and a second firmware, the first firmware and the second firmware are provided with header file data which at least comprise information on cyclic redundancy check sum and information on image header file building time. When a new firmware is updated, whether the first firmware and the second firmware are abnormal is judged according to the information on the cyclic redundancy check sum in the first firmware and the second firmware. If one firmware is judged to be abnormal, a new firmware is used for replace the abnormal firmware, and if the first firmware and the second firmware are both judged to be normal, the information on the image header file building time in the first firmware and the second firmware is compared, and then a new firmware is used to replace the firmware with the building time earlier. Therefore, the invention can ensure that even if the firmware updating operation fails, one normal firmware can be maintained to perform the subsequent firmware updating operation.

The invention discloses a Boot program backup method and a Boot program backup device. The method includes the following steps: booting a master Boot program, and judging whether the master Boot program is successfully booted; if the master Boot program is successfully booted, then determining that the booting of the master Boot program is completed; if the master Boot program is not successfully booted, then booting a standby Boot program, and judging whether the standby Boot program is successfully booted; and if the standby Boot program is successfully booted, then determining that the booting of the Boot program is completed. In the embodiment of the invention, the backup mechanism of the master Boot program and the standby Boot program is utilized to realize double-Boot program backup, consequently, the problem of the failure of the booting of a device, which is caused by the damage of the Boot program, can be effectively prevented, and the reliability of the booting of the Boot program is guaranteed.

The invention discloses a method for periodically automatically starting and stalling an automotive engine, which comprises that: 1) a periodically automatic control module is connected in parallel with a key switch in an automotive control circuit, wherein the periodically automatic control module comprises a serially connected control switch and a periodical start control integrated circuit module; 2) when an automobile stops, a setting time needed by automatically starting the automobile is input according to the next automobile using time; and 3) the periodical start control integrated circuit module judges whether an IG signal is output in the automotive key switch and whether an automotive shifting mechanism is positioned at a neutral position at any time; if the IG signal is output or the automotive shifting mechanism is not positioned at the neutral position, the control switch is directly disconnected; if the IG signal is not output or the automotive shifting mechanism is positioned at the neutral position, the periodical start control integrated circuit module judges whether the ambient temperature in the automobile is lower or higher than the set temperature when the set time is up, determines whether to start the engine according to the set temperature, and opens a corresponding air-conditioning system.

The embodiment of the invention provides an unmanned plane firmware upgrading device, method and a terminal. The unmanned plane firmware upgrading method comprises steps of responding clicked operation of a first control to obtain latest version firmware, responding clicked operation of a second control to push the latest version firmware to an unmanned plane, sending an upgrading instruction to the unmanned plane after the latest version firmware push is completed, verifying an upgrading result when the unmanned plane firmware upgrade is finished, and stopping executing take-off action for the unmanned plane if the upgrade fails. In the embodiment, a connection between a PC and the unmanned plane via a USB connection line is unnecessary, and unmanned firmware upgrading can be achieved via wireless network, so the upgrading process of the unmanned plane can be simplified; and user experience can be enhanced.

An upgrading method of a vehicle-mounted terminal system comprises the steps that a vehicle-mounted terminal is connected to an upgrading server through a wireless network, and the vehicle-mounted terminal is provided with two system starting partitions and a safe storage area. The vehicle-mounted terminal and the upgrading server perform bidirectional authentication through respective digital certificates and determine a session key for communication between the vehicle-mounted terminal and the upgrading server, and THE subsequent communication between the vehicle-mounted terminal and the upgrading server is encrypted through the session key. The vehicle-mounted terminal identifies one system starting partition as to-be-upgraded and sends upgrading request information to the upgrading server, and the upgrading request information comprises the system software version numbers of the two system starting partitions and the vehicle information. After receiving the upgrading request information, the upgrading server sends upgrading information. The vehicle-mounted terminal downloads the system upgrade package from the upgrade server, and the vehicle-mounted terminal upgrades the systemstarting partition to be upgraded through the system upgrading package. According to the present invention, the problem that the vehicle-mounted terminal cannot be started due to upgrading failure can be avoided, the safety is high, and it is guaranteed that data cannot be tampered and monitored.

The invention discloses an inverter fan control method. Due to control over the rotating speed of a fan, the power of a current inverter and a temperature preset value of a cooled power device are integrated, when the inverter is at the first temperature preset value, the fan can obtain a first fan rotating speed instruction related to the real-time power. When the highest temperature of the cooled power device is larger than the second temperature preset value, a second temperature preset value is adopted as a target, and a second fan rotating speed instruction is formed through a temperature regulator so as to perform closed-ring control over the temperature of the cooled power device. After the first fan rotating speed instruction and the second fan rotating speed instruction are added, a fan rotating speed driving instruction is formed. The invention further provides a device corresponding to the fan control method. On the basis of the first fan rotating speed instruction, the phenomena that when the temperature of the power device does not reach the preset value during operation of the inverter, the fan cannot be started and the inverter is in the heated and baked state all the time can be avoided; on the basis of the second fan rotating speed instruction, the fan can overlay rotating speed increment generated by increase of the temperature on the basis of the first fan rotating speed, and the rotating speed can be automatically adjusted according to environmental temperature.

The invention provides a method and device for updating the ECU firmware of a vehicle. The method comprises the following steps that: 1, a to-be-updated firmware upgrading version of the ECU of the vehicle is obtained; the firmware of the ECU is simulated and upgraded to the firmware upgrading version in a virtual machine; and if simulation update succeeds, the firmware updating version is used for updating the firmware of the actual ECU of the vehicle. Therefore, the firmware updating success rate of the actual ECU is greatly improved, the problem that the vehicle cannot be started due to firmware updating failure of the ECU is avoided, and the problem that the success rate of an ECU firmware updating process in related technologies is low is solved.

The invention discloses a rotor position detection method of a brushless direct current motor without a sensor. The rotor position detection method of the brushless direct current motor without the sensor comprises a detection method of a rotor start position and a detection method of a rotor position after the motor rotates. According to the detection method of the rotor start position, current relative positions of a coil magnetic field and a permanent magnetic field can be judged according to a law of variation of motor coil magnetic flux along with the permanent magnetic field, specially, symmetric voltage Uvu and Uuv, Uvw and Uwv, and Uuw and Uwu with equal pulse width and the same voltage value are connected with three phase circuits v, u and w of the motor in pairs, the voltage can not enable a rotor of the motor to deflect, the voltage or current of brushless direct current motor coil three phases is sampled, and current relative positions of coil of the rotor and the permanent magnetic field when the motor is started can be estimated according to a voltage circuit equation. According to the rotor position detection method of the brushless direct current motor without the sensor, the position of the rotor can be detected without the requirement for motor rotation, and therefore a current blind starting mode of the brushless direct current motor without a Hall sensor is replaced.

In a water-supply line for performing water-supply to the rotors and the mechanical seal of a compressor, or in a condensed-water collection line for collecting condensed water of a dryer into the inlet port of the compressor, a water reservoir is provided at a position higher than the water-supply unit of the compressor. Moreover, there are provided a start-time water-supply line and a solenoid valve set up therein. Here, the start-time water-supply line establishes the connection between the lower portion of the water reservoir, and the inlet port of the compressor and the water-supply unit of the mechanical seal.

The invention discloses a vehicle-mounted power supply device and a control circuit of the vehicle-mounted power supply. The control circuit of the vehicle-mounted power supply comprises an awakening module and a self-locking module, wherein a control signal output end of the awakening module is connected to an enabling pin of a power supply chip, the awakening module outputs an awakening enabling signal to the power supply chip at the moment of power on, so that the power supply chip can supply power to a MCU; and the self-locking module is connected with the awakening module, the self-locking module is used for controlling the awakening module to lock the awakening enabling signal when the awakening module outputs the awakening enabling signal, so that the power supply chip can continuously supply power to the MCU, so that the MCU can be started. According to the control circuit of the vehicle-mounted power supply, a self-locking circuit is additionally arranged on the basis of a traditional awakening circuit, so that a large capacitance value capacitor does not need to be arranged in the awakening circuit, the cost is greatly reduced, and the problem that the MCU cannot be started when the vehicle-mounted power supply is quickly powered on and off is solved.

The invention provides a direct cooling refrigerator comprising a refrigerating chamber evaporator, a freezing chamber evaporator, one or more condensers, a compressor, a compensating heater and a control circuit, wherein the compensating heater is used for heating the refrigerating chamber evaporator and the control circuit is used for controlling the compressor and starting the compensating heater so as to heat the refrigerating chamber evaporator when the compressor starts or the fast refrigeration is carried out by the direct cooling refrigerator. In the embodiment of the invention, the low temperature compensation for the compressor can be realized through the compensating heater; the refrigerating chamber evaporator can be heated through the compensating heater when the fast refrigeration is carried out by the direct cooling refrigerator; and therefore, the temperature of a refrigerating chamber is stabilized.

The invention relates to a heat pump system, a control method and a refrigerating unit. The heat pump system comprises a compressor, an outdoor heat exchanger, a first throttling device and an indoor heat exchanger. The compressor, the outdoor heat exchanger, the first throttling device and the indoor heat exchanger form a refrigerant circulation system. The heat pump system further comprises a bypass pipeline, the two ends of the bypass pipeline are connected with an inlet and an outlet of the compressor separately, and the bypass pipeline is provided with a first switch device used for opening and closing the bypass pipeline. According to the refrigerant circulation system, balance between high pressure and low pressure can be guaranteed before the compressor is started again, and normal starting power is ensured.

The invention provides an air-conditioner. The air-conditioner comprises a shell, a draught fan, an indoor heat exchanger and an outdoor heat exchanger, wherein the draught fan, the indoor heat exchanger and the outdoor heat exchanger are arranged inside the shell. The draught fan is provided with an air inlet taking in air from the interior, an outdoor air outlet sending the air outdoors and an indoor air outlet sending the air indoors. The outdoor heat exchanger and the outdoor air outlet are arranged correspondingly. The indoor heat exchanger and the air inlet or the indoor air outlet are also arranged correspondingly. According to the air-conditioner, the draught fan is provided with the outdoor air outlet, the indoor air outlet and the air inlet taking in the air from the interior, and the outdoor heat exchanger is subjected to heat exchange with airflow entering from the air inlet in the working process; and due to the fact that the indoor working condition is generally superior to the outdoor working condition, the problems that the air-conditioner cannot be started and operating efficiency is low due to severe outdoor working conditions are prevented, and the operating efficiency of the air-conditioner is improved.

An embodiment of the invention provides a Bootloader program module updating method and device, and relates to the technical field of embedded systems. The method includes the steps: updating a secondBootloader program module in two Bootloader program modules after determining that a first Bootloader program module in the two Bootloader program modules can successfully guide a network device to start; ensuring that the first Bootloader program module and the updated second Bootloader program module can successfully guide the network device to start. Updating is automatically realized withoutmanually paying close attention to the difference between the two Bootloader program modules, excessive version consistency or difference of the two Bootloader program modules is avoided, and the method is good in universality and high in reliability.

The invention relates to an alarm clock management method of a mobilephone, which comprises the following steps: (a) reminding a user that the set alarm clock time is up according to a set alarming mode; (b) providing a confirming option and a resounding option for the user for selection, going to step a if the user selects the resounding option, and entering into a step c if the user selects theconfirming option; (c) judging whether at least one alarm is additionally set within a certain time range, going to the step a if at least one alarm is additionally set, and entering into a step d ifno alarm is additionally set; (d) starting a mobile induction device; and (e) emitting a microphony alarm if the mobile induction device does not induce the mobilephone to move continuously or discontinuously at the set time, and ending the flows if the mobile induction device induces the mobilephone to move continuously or discontinuously at the set time. In addition, the invention also providesthe mobilephone.

The invention discloses an electric auxiliary heating type waste gas recirculation mixer, and belongs to the technical field of engine waste gas reutilization. The electric auxiliary heating type waste gas recirculation mixer comprises a mixer body. A gas inlet and a gas outlet are formed in the mixer body. A containing cavity formed around a mixing cavity of the mixer body is formed in a shell ofthe mixer body, and an electric heating device arranged around the mixing cavity of the mixer body is arranged on the cavity wall of the containing cavity. The electric auxiliary heating type waste gas recirculation mixer is reasonable in structural design, the heating function is integrated on the mixer, the mixer shell is subjected to electric auxiliary heating through the electric heating device, the phenomenon of freezing in an EGR mixer is avoided, ice in the mixer can be effectively and rapidly removed, the reliability of an EGR system is improved, and the problem of flameout caused byfreezing of the EGR mixer can be solved.

The invention discloses a high-power centrifugal fan with an adjustable supply air rate. The high-power centrifugal fan comprises a left volute and a right volute. A left air inlet and a left motor shaft installation support are arranged on the left side of the left volute. A right air inlet and a right motor shaft installation support are arranged on the right side of the right volute. A double-shaft extending three-phase asynchronous motor is arranged between the left volute and the right volute. Transverse wind blocking blades are connected with a transverse control motor arranged on one side of the air outlet. Vertical wind blocking blades are connected with a vertical control motor arranged at the upper end of the air outlet. The left air inlet and the right air inlet are connected with a square air inlet pipeline. A wind speed adjusting device is arranged on the square air inlet pipeline. The wind speed adjusting device comprises an adjusting baffle, an inserting groove matched with the adjusting baffle is formed in the square air inlet pipeline, the upper end of the adjusting baffle is connected with a piston rod of an air cylinder through an L-shaped connecting rod, and the air cylinder is fixedly arranged on the square air inlet pipeline.

The embodiment of the invention discloses a control method and system of a vehicle-mounted air conditioner, a computer device and a computer readable storage medium. The control method of the vehicle-mounted air conditioner comprises the steps that whether an SOC value of a power battery of a vehicle is greater than a first preset value or not is judged; when the SOC value is greater than the first preset value, in-vehicle temperature is obtained, and whether the in-vehicle temperature is greater than or equal to first preset temperature or not is judged; when the in-vehicle temperature is greater than or equal to the first preset temperature, the vehicle-mounted air conditioner is started. According to the control method and system of the vehicle-mounted air conditioner provided by the embodiment of the invention, the SOC value reaching the first preset value serves as a precondition, it is ensured that electricity quantity of the vehicle is sufficient; the vehicle-mounted air conditioner is automatically started for cooling when the in-vehicle temperature rises to reach the first preset temperature, automatic control of the in-vehicle temperature can be carried out, pet protection and safety and integrity of other high-temperature sensitive articles are facilitated, and the tragedy is thoroughly prevented that a child is suffocated to die in a vehicle due to high temperature.

The invention discloses an air conditioner control method. The air conditioner control method comprises the following steps that the outdoor environment temperature and operating parameters of an air conditioner are obtained, and the operating parameters comprise at least one of the shutdown duration and the exhaust temperature; a first duration and/or a first temperature are/is determined according to the outdoor environment temperature; and when it is judged that the exhaust temperature is lower than the first temperature and/or the shutdown duration is longer than the first duration, the air conditioner is controlled to preheat a compressor. The invention further discloses the air conditioner and a computer readable storage medium, and the effect of avoiding the situation that the air conditioner cannot be started in an extreme environment is achieved.

The application discloses a smart TV and a system starting method thereof. The method comprises the following steps: freezing a user process and a kernel process for accessing a first partition in theinternal memory; triggering the process for unique system mirror loading, enabling the process to read a unique system mirror from a non-volatile memory , and loading the unique system mirror in theinternal memory; unfreezing a data synchronization process in the user process so that the data synchronization process synchronizes the data in a second partition corresponding to the first partition in the non-volatile memory to the first partition; after the data synchronization is accomplished, unfreezing other frozen system processes. The problem that the system starting is failed since thedata in the unique system mirror is unmatched with the data correspondingly stored in the non-volatile memory in the system starting based on the unique system mirror can be solved through the systemstarting method disclosed by the application.